SDFW Direct FiredGas Heating SystemSDFW Direct FiredGas Heating System
Warm
Sterling
Keeps You
TGSDFW-3
Technical Guide for:
Outdoor Mounted Units To 100,000 CFM And 14M BTUH
Featuring the Patented AirTrak controlled Circulation System
2
Sterling
Keeps You
Warm
Sterling
Keeps You
Warm
In the business of commercial and industrial operations, efficient and low-cost heating is essential. Sterling keeps you warm for less.
Since 1946, Sterling has been providing cost-effective, reliable gas heating solutions. Our proven Direct Fired Gas Heating System adds warm, fresh and clean air to your work environment for greater comfort and productivity. Add evaporative cooling modules for year-round performance.
This Technical Guide will help you choose a Sterling Direct Fired Gas Heating System to provide efficient, cost-effective heating for your kitchen, warehouse, factory or process operation. The Guide covers:
• Technical Specifications — Configure the right system components (e.g., burner, motors, drive, filter, options, etc.) to meet your needs.
• Installation Information — Plan details of on-site installation with dimensional information, unit weights and cabinet arrangement diagrams.
If you have questions, please contact Sterling’s Customer Service Department at 214-638-6010. We’ll be glad to help.
To add evaporative cooling, refer to the Sterling SDFE Evaporative Cooling System brochure.
SDFW Direct FiredGas Heating SystemTechnical Guide
In the interest of product improvement, Sterling
reserves the right to make changes without notice.
3
Table of Contents
Air Delivery Tables .................................................... 4-5Burner Performance Tables ...................................... 6-7Dimensions Standard Horizontal Units .......................... 8-10 Roof Curbs 100% Make-Up Air .................................... 11 Return Air After Burner ............................. 12 Return Air Before Burner .......................... 13 Standard Vertical Units .............................. 14-19 V-Bank Filter .................................................... 20 Mixing Box and Airflow Station ..................... 20 Inlet Dampers ................................................. 21 Discharge Dampers ........................................ 21 Discharge Louvers .......................................... 21 Intake Hoods .................................................. 22 Cooling Coil Section ....................................... 23 5F and 5R Discharge ................................... 24-25 8F and 8R Discharge ................................... 26-275F and 5R Discharge Pressure Drop and Coverage .. 28-298F and 8R Discharge Pressure Drop and Coverage .. 30-31Cooling Coil Performance..................................... 32-39Control Systems .................................................... 40-47Amp Draw Table ........................................................ 48Sequence of Operation – Return Air Unit ................. 48Typical Gas Piping Layout .......................................... 49Unit Weights .............................................................. 50Cabinet Arrangements .............................................. 51Guide Specification – Base Unit ............................ 52-53Guide Specification – Mixing Dampers with Return Air Flow Station ......................................................... 54Guide Specification – BACview and TouchscreenController ................................................................... 55
4
FPMOutlet
Velocity19152155239026902990329035902255243026052775295022402485273529852265244026152785296021452260238025002620215523552550274529402085223523852685298023652580279530103225
3/4’’HP1
1-1/21-1/2
2233233333355555
7-1/27-1/2
57-1/27-1/27-1/27-1/27-1/27-1/2
101010
7-1/2101010151515152020
Total External Static Pressure (W.C.)
SCFM 1600 1800 2000 2250 2500 2750 3000 3250 3500 3750 4000 4250 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 9500 10,000 10,500 11,000 11,000 12,000 13,000 14,000 15,000 14,000 15,000 16,000 18,000 20,000 22,000 24,000 26,000 28,000 30,000
Unit
Model
109
112
115
118
120
122
125
130
Air Delivery Table
3/8’’HP11
1-1/21-1/2
22322233233555555555
7-1/27-1/27-1/27-1/27-1/2
1010
7-1/27-1/27-1/2
10151015151520
1/4’’HP11
1-1/21-1/2
223
1-1/222332335355555555
7-1/25
7-1/27-1/27-1/2
107-1/27-1/27-1/2
10101010151520
1/2’’HP11
1-1/21-1/2
2232233333355555
7-1/2555
7-1/27-1/27-1/27-1/27-1/2
1010
7-1/27-1/27-1/2
10151015151520
1-1/4’’HP—
1-1/22233333335355555
7-1/27-1/27-1/27-1/27-1/27-1/27-1/2
107-1/2
10101515—101015151515202025
1-1/2’’HP——223353335555555
7-1/27-1/27-1/27-1/27-1/27-1/27-1/2
10101010101515—151515201520202025
1’’HP—
1-1/21-1/2
2233333333355555
7-1/27-1/27-1/27-1/27-1/27-1/27-1/27-1/27-1/2
10101510101015151515202020
2’’HP———333535555
—55
7-1/27-1/27-1/27-1/27-1/2
10——101010—15151515———1520—20252530
NOTE:Horsepower selections are based on system external static pressure. One or more of the following must be added when applicable.
A. Fresh Air Inlet Hood & Birdscreen .13’’ W.C.
B. Fresh Air Inlet Hood with Filters .25’’ W.C.
C. Motor Operated Inlet Damper .13’’ W.C.
D. Motor Operated Discharge Damper .50’’ W.C.
E. V-Bank Filter Section .25’’ W.C.
F. Discharge Louver .13’’ W.C.
Single Blower Models
SELECTION GUIDE1. Determine the required amount of replacement air (CFM) by computing the total amount of air being exhausted. (Restaurants should be sized for 90% of exhaust air to minimize food odors.)
2. Determine the total external static pressure by adding the pressure drops through all accessories and ducts.
3. Select unit size and motor horsepower from table.
G. 5F and 5R Discharge pg 28, 29
H. 8F and 8R Discharge pg 30, 31
I. 4 Row DX Coils pg 32, 33
J. 6 Row DX Coils pg 34, 35
K. 4 Row CW Coils pg 36, 37
L. 6 Row CW Coils pg 38, 39
5
SCFM 9000 9500 10,000 10,500 11,000 11,500 12,000 12,500 13,000 14,000
15,000 16,000 17,000 18,000 19,000 20,000 21,000 22,000 23,000 24,000 25,000 26,000 25,000 26,000 27,000 28,000 29,000 30,000 31,000 30,000 32,000 34,000 36,000 38,000 40,000 42,000 44,000 46,000 44,000 48,000 52,000 56,000 60,000 64,000 60,000 65,000 70,000 75,000 70,000 75,000 80,000 85,000 90,000 95,000 100,000
FPMOutlet
Velocity2240236524852610273528602985217522652440261527852960214022602380250026202740286029803100245025502650275028502950304022352385253526852835298031303280343023652580280030103225344024902695290531102305247026352795296031253290
Unit
Model
215
218
220
222
225
230
233
240
Air Delivery Table
Twin Blower Models
3/8’’HP5555
7-1/27-1/27-1/27-1/27-1/27-1/2
101010101010151515151520151515202020201515202020252530302025253040403040405030404050506060
1/4’’HP5555
7-1/27-1/27-1/27-1/27-1/27-1/27-1/2
1010
7-1/21010101515151515151515152020201515152020202525302020253040403040405030404040505060
1/2’’HP555
7-1/27-1/27-1/27-1/27-1/27-1/27-1/2
101010101010151515151520151515202020201515202020252530302025303040403040405040404050506060
1-1/4’’HP—
7-1/27-1/27-1/27-1/2
1010—1010151515151515152020202020202020252525252020252530304040403030404050504050506050506060607575
1-1/2’’HP——
7-1/27-1/2
101010——1515151515151520202020202520202525252530—2525303030404040—404040505050506060506060607575100
3/4’’HP55
7-1/27-1/27-1/27-1/27-1/27-1/27-1/2
10101015101015151515152020152020202020251520202025253030402525304040504040505040405050606075
1’’HP
7-1/27-1/27-1/27-1/27-1/27-1/2
107-1/2
1010101515151515151515202020202020202525252020202525303040402530404040504040506040505060607575
2’’HP————101015———151520——2020202025252525252530303030——30304040404050——50505060—6060756060757575
100100
Total External Static Pressure (W.C.)
6
Burner Performance Table
120°Rise
221 248 276 311 345 380 414 449 483 518 552 587 621 690 759 828 897 966 1035 1104 1173 1242 1311 1380 1449 1518 1518 1656 1794 1932 2070 1932 2070 2208 2484 2760 3036 3312 3588 3864 4140
110°Rise
206 232 258 290 322 354 387 419 451 483 516 548 580 644 709 773 838 902 967 1031 1096 1160 1224 1289 1353 1418 1418 1547 1676 1804 1933 1804 1933 2062 2320 2578 2836 3093 3351 3609 3867
100°Rise
191 215 239 269 299 328 358 388 418 448 478 508 537 597 657 717 776 836 896 955 1015 1075 1135 1194 1254 1314 1314 1433 1553 1672 1791 1672 1791 1911 2150 2388 2627 2866 3105 3344 3583
90°Rise
175 197 219 247 274 301 329 356 384 411 438 466 493 548 603 658 712 767 822 877 932 986 1041 1096 1151 1205 1205 1315 1425 1534 1644 1534 1644 1753 1973 2192 2411 2630 2849 3069 3288
80°Rise
159 179 199 224 248 273 298 323 348 373 397 422 447 497 546 596 646 696 745 795 845 894 944 994 1043 1093 1093 1192 1292 1391 1490 1391 1490 1590 1788 1987 2186 2385 2583 2782 2981
70°Rise
142 160 177 200 222 244 266 288 311 333 355 377 399 444 488 533 577 621 665 710 754 798 843 887 932 976 976 1065 1153 1242 1331 1242 1331 1419 1597 1774 1952 2129 2307 2484 2661
SCFM
1600 1800 2000 2250 2500 2750 3000 3250 3500 3750 4000 4250 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 9500 10,000 10,500 11,000 11,000 12,000 13,000 14,000 15,000 14,000 15,000 16,000 18,000 20,000 22,000 24,000 26,000 28,000 30,000
Unit
Model
109
112
115
118
120
122
125
130
Single Blower Models — MBH Input
130°Rise
235 264 294 330 367 404 440 477 514 550 587 624 661 734 807 881 954 1027 1101 1174 1248 1321 1394 1468 1541 1615 1615 1761 1908 2055 2202 2055 2202 2349 2642 2936 3229 3523 3816 4110 4404
SELECTION GUIDE1. Determine the temperature rise required
through the heater by subtracting the winter design temperature from the desired indoor temperature.
2. Values shown in above MBH Input Tables are based on -40° F Inlet Temperature. MBH input shown on unit rating plate will be corrected for actual air density.
3. Natural gas units are limited to 130° F temperature rise, propane units are limited to 100° F temperature rise.
7
120°Rise
1242 1311 1380 1449 1518 1587 1656 1725 1794 1932 2070 2208 2346 2484 2622 2760 2898 3036 3174 3312 3450 3588 3450 3588 3726 3864 4002 4140 4278 4140 4416 4692 4968 5244 5520 5796 6072 6348 6072 6624 7176 7728 8280 8832 8280 8970 9660 10,350 9660 10,350 11,040 11,730 12,420 13,110 13,800
110°Rise
1160 1224 1289 1353 1418 1482 1547 1611 1676 1804 1933 2062 2191 2320 2449 2578 2707 2836 2964 3093 3222 3351 3222 3351 3480 3609 3738 3867 3996 3867 4124 4382 4640 4898 5156 5413 5671 5929 5671 6187 6702 7218 7733 8249 7733 8378 9022 9667 9022 9667 10,311 10,955 11,600 12,244 12,889
100°Rise
1075 1135 1194 1254 1314 1373 1433 1493 1553 1672 1791 1911 2030 2150 2269 2388 2508 2627 2747 2866 2986 3105 2986 3105 3224 3344 3463 3583 3702 3583 3822 4060 4299 4538 4777 5016 5255 5494 5255 5732 6210 6688 7165 7643 7165 7763 8360 8957 8360 8957 9554 10,151 10,784 11,345 11,942
90°Rise
986 1041 1096 1151 1205 1260 1315 1370 1425 1534 1644 1753 1863 1973 2082 2192 2301 2411 2521 2630 2740 2849 2740 2849 2959 3069 3178 3288 3397 3288 3507 3726 3945 4164 4384 4603 4822 5041 4822 5260 5699 6137 6575 7014 6575 7123 7671 8219 7671 8219 8767 9315 9863 10,411 10,959
80°Rise
894 944 994 1043 1093 1143 1192 1242 1292 1391 1490 1590 1689 1788 1888 1987 2087 2186 2285 2385 2484 2583 2484 2583 2683 2782 2881 2981 3080 2981 3180 3378 3577 3776 3974 4173 4372 4571 4372 4769 5167 5564 5962 6359 5962 6458 6955 7452 6955 7452 7949 8446 8942 9439 9936
70°Rise
798 843 887 932 976 1020 1065 1109 1153 1242 1331 1419 1508 1597 1686 1774 1863 1952 2040 2129 2218 2307 2218 2307 2395 2484 2573 2661 2750 2661 2839 3016 3194 3371 3549 3726 3903 4081 3903 4258 4613 4968 5323 5678 5323 5766 6210 6654 6210 6654 7097 7541 7984 8428 8872
SCFM
9000 9500 10,000 10,500 11,000 11,500 12,000 12,500 13,000 14,000 15,000 16,000 17,000 18,000 19,000 20,000 21,000 22,000 23,000 24,000 25,000 26,000 25,000 26,000 27,000 28,000 29,000 30,000 31,000 30,000 32,000 34,000 36,000 38,000 40,000 42,000 44,000 46,000 44,000 48,000 52,000 56,000 60,000 64,000 60,000 65,000 70,000 75,000 70,000 75,000 80,000 85,000 90,000 95,000 100,000
Unit
Model
215
218
220
222
225
230
233
240
Twin Blower Models — MBH Input
Burner Performance Table
130°Rise
1321 1394 1468 1541 1615 1688 1761 1835 1908 2055 2202 2349 2495 2642 2789 2936 3082 3229 3376 3523 3670 3816 3670 3816 3963 4110 4257 4404 4550 4404 4697 4991 5284 5578 5871 6165 6458 6752 6458 7046 7633 8220 8807 9394 8807 9541 10,275 11,009 10,275 11,009 12,743 12,477 13,211 13,944 14,678
8
7. Access door 8. Access door (piping compartment) 9. Lifting lug
G147⁄16
147⁄16
197⁄8197⁄828¼28¼37¾37¾
T20¼20¼20¼20¼20¼20¼26½26½
F151⁄8139⁄16
123⁄8123⁄8133⁄16
133⁄16
179⁄16
179⁄16
S5454545460606565
H119⁄16
119⁄16
85⁄8615⁄16
105⁄32
1113⁄32
1111⁄16
147⁄16
U4242424268688181
109112115118120122125130
109112115118120122125130
Single Blower Models — Sizes 109 Through 130
Dimensions
UNIT COMPONENTS 1. Centrifugal supply fan 2. Fan motor 3. Line burner
4. Control cabinet 5. Hinged control cabinet access door 6. Observation port
NOTE: All dimensions in inches subject to manufacturing tolerances.
DimensionsModel A
3636363648486060
K14¼14¼14¼14¼14¼14¼20¼20¼
E103⁄8139⁄16
1619
247⁄8273⁄8313⁄8367⁄8
R32323232
38½38½5353
C7777777796969696
M1115⁄16
1515⁄16
1815⁄16
221⁄16
251⁄16
279⁄16
31½37
B5252525278789191
L14½12½111⁄871⁄8123⁄8123⁄8153⁄8153⁄8
J191919191919
125⁄16
125⁄16
V2222222222222828
10. Unit base11. Manifold compartment 12. Return air flow station
(required for ETL listed Return Air Unit)
C000465A
D1713⁄16
1713⁄16
2315⁄16
2315⁄16
29½29½387⁄8387⁄8
P27¾27¾27¾27¾48484949
ModelDimensions
3
"B"
"L"
V-B
AN
K F
ILTE
R
MIX
ING
BO
X
INLE
T D
AM
PE
R
DISCHARGEDAMPER
11 6
2 4 9
1
7
"M"
"H"
3
4
INTA
KE
HO
OD
"D"
1-1/2TYP
"P"
5-1/25
"U"
77
S/A
FRONT VIEW(SIDE DISCHARGE)
"V"
"R"
O/A
O/A
1 TYP"S"
R/A
"T" x "U"
"T"
9
6
12
RIGHT HAND SHOWN
"C"
NOT ETL LISTED
R/A
LEFT IS OPPOSITE
"J" "K"
"A"
(BOTTOM DISCHARGE)FRONT VIEW
"G"
10 "C"
"E"
S/A
"E" "F"
3
58 2-1/4 5
UNIT COMPONENTS
18"
9
Dimensions
215218220222225230
215218220222225230
Twin Blower Models — Sizes 215 Through 230
Dimensions
Model
UNIT COMPONENTS 1. Centrifugal supply fan 2. Fan motor 3. Line burner
4. Control cabinet 5. Hinged control cabinet access door 6. Observation port
A363648486060
K14¼14¼14¼14¼20¼20¼
B9494130130154154
L77⁄877⁄8123⁄8123⁄8153⁄8153⁄8
G197⁄8197⁄828¼28¼373⁄437¾
S545460606565
E1619
247⁄8273⁄8313⁄8367⁄8
P65¾65¾873⁄8873⁄81113⁄81113⁄8
NOTE: All dimensions in inches subject to manufacturing tolerances.
C777796969696
M1815⁄16
221⁄16
251⁄16
279⁄16
31½37
F123⁄8123⁄8133⁄16
133⁄16
179⁄16
179⁄16
R3232
44½44½56½56½
J19191919
125⁄16
125⁄16
V222222222828
H615⁄16
615⁄16
117⁄16
117⁄16
147⁄16
147⁄16
T20¼20¼20¼20¼26½26½
I22¼16
295⁄8245⁄8375⁄8265⁄8
U8484120120144144
7. Access door 8. Access door (piping compartment) 9. Lifting lug
10. Unit base11. Manifold compartment12. Return air flow station
(required for ETL listed Return Air Unit)
Model Dimensions
D2315⁄16
2315⁄16
297⁄16
297⁄16
387⁄8387⁄8
N1414
225⁄8225⁄8245⁄8245⁄8
C000466A
C000466.A
INTA
KE
HO
OD
INLE
T D
AM
PE
R
MIX
ING
BO
X
"U"
"E"
(BOTTOM DISCHARGE)FRONT VIEWFRONT VIEW
(SIDE DISCHARGE) RIGHT HAND SHOWNLEFT IS OPPOSITE
"C"10"F"
3
"D"
5-1/2
V-B
AN
K F
ILTE
R
"B"
PLAN VIEW
8
611
"P"
5 34 7
2-1/4
"E"
5
2 4 9
5
1
"M"
DAMPERDISCHARGE
3
"L" "H" TYP1-1/2
"M"
"I"
"D"
"N"
77
"R"
9
"S"
S/A
R/A
"V"
O/A
O/A
R/A
"J"
"C" "G"
S/A
S/A
12 NOT ETL LISTED
6
"T" x "U"
1 TYP
"K"
"T"
"A"
UNIT COMPONENTS
18"
10
E431⁄16
41
P130166
233240
233240
Twin Blower Models — Sizes 233 And 240
Dimensions
Dimensions
UNIT COMPONENTS 1. Centrifugal supply fan 2. Fan motor 3. Line burner
4. Control cabinet 5. Hinged control cabinet access door 6. Observation port
NOTE: All dimensions in inches subject to manufacturing tolerances.
ModelA
6879¼
L1720
B175210
M397⁄8537⁄8
K20¼20¼
W7286
H161⁄16
191⁄16
T31¼31¼
J2020
V2828
G4442
S7070
F197⁄16
33
R56½51½
D41¾55¾
O4545
C117131
N341⁄838
7. Access door 8. Access door (piping compartment) 9. Lifting lug
10. Unit base11. Manifold compartment12. Return air flow station
(required for ETL listed Return Air Unit)
DimensionsModel
I36
397⁄8
U163198
C000200B
11
C3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼N/AN/A
X76½76½104½104½118½118½150½150½104½104½118½118½150½150½N/AN/A
W46½46½58½58½92½92½
110½110½100½100½148½148½173½173½N/AN/A
A3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼N/AN/A
L71½71½71½71½90½90½90½90½71½71½90½90½90½90½111½125½
EN/AN/AN/AN/AN/AN/AN/AN/A
1815⁄16
221⁄16
251⁄16
279⁄16
31½37
397⁄8537⁄8
D1115⁄16
1515⁄16
1815⁄16
221⁄16
251⁄16
279⁄16
31½37
601⁄8601⁄879¾79¾1005⁄81005⁄8115¾1475⁄8
C2213⁄16
2013⁄16
193⁄16
195⁄16
3713⁄16
355⁄16
413⁄8357⁄823¼23¼351⁄8351⁄835¼35¼39½395⁄8
B103⁄8139⁄16
1619
247⁄8273⁄8313⁄8367⁄81619
247⁄8273⁄8313⁄8367⁄8431⁄16
41
A123⁄8
1013⁄16
95⁄895⁄8
107⁄16
107⁄16
1413⁄16
1413⁄16
95⁄895⁄8
107⁄16
107⁄16
1413⁄16
1413⁄16
1611⁄16
30¼
W46½46½46½46½72½72½85½85½88½88½124½124½148½148½169½204½
109112115118120122125130215218220222225230233240
Roof Curbs For 100% Make-Up Air Units
Dimensions
B181818182626
34½34½18182626
34½34½N/AN/A
D404052528686
1041049494
142142167167N/AN/A
L153½153½181½181½214½214½246½246½181½181½214½214½246½246½N/AN/A
Y00
121220202525121224242525
N/AN/A
Model Without Cooling With CW or DX Cooling
C000555
NOTES:1. All dimensions in inches subject to manufacturing
tolerances.
2. Curb to be shipped loose and assembled in the field.
3. Curb must be installed square and level.
4. Curb requires intermediate structural support and is not to be corner post mounted.
5. Gaskets to be shipped with unit.
6. Bolting accessories shipped with curb.
7. Curb drawings shown are for units which have controls on the “standard” side.
8. Available on horizontal units only.
12
H2¾2¾2¾2¾2¾2¾2¾2¾2¾2¾2¾2¾2¾2¾2¾2¾
J27¾27¾27¾27¾48484949
65¾65¾873⁄8873⁄81113⁄81113⁄8130166
W46½46½58½58½92½92½
110½110½100½100½148½148½173½173½N/AN/A
L153½153½181½181½214½214½246½246½181½181½214½214½246½246½N/AN/A
X76½76½104½104½118½118½150½150½104½104½118½118½150½150½N/AN/A
Y00121220202525121224242525
N/AN/A
A3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼N/AN/A
L71½71½71½71½90½90½90½90½71½71½90½90½90½90½111½125½
EN/AN/AN/AN/AN/AN/AN/AN/A
1815⁄16
221⁄16
251⁄16
279⁄16
31½37
397⁄8537⁄8
Without CoolingG
14¼14¼14¼14¼14¼14¼20¼20¼14¼14¼14¼14¼20¼20¼20¼20¼
109112115118120122125130215218220222225230233240
Roof Curbs For Base Units With Return Air After Burner
Dimensions
ModelB
103⁄8139⁄16
1619
247⁄8273⁄8313⁄8367⁄81619
247⁄8273⁄8313⁄8367⁄8431⁄16
41
C2213⁄16
2013⁄16
193⁄16
195⁄16
3713⁄16
355⁄16
413⁄8357⁄823¼23¼351⁄8351⁄835¼35¼39½395⁄8
D1115⁄16
1515⁄16
1815⁄16
221⁄16
251⁄16
279⁄16
31½37
601⁄8601⁄879¾79¾1005⁄81005⁄8115¾1475⁄8
A123⁄8
1013⁄16
95⁄895⁄8
107⁄16
107⁄16
1413⁄16
1413⁄16
95⁄895⁄8
107⁄16
107⁄16
1413⁄16
1413⁄16
1611⁄16
30¼
W46½46½46½46½72½72½85½85½88½88½
124½124½148½148½169½204½
With CW or DX CoolingB181818182626
34½34½18182626
34½34½N/AN/A
C3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼N/AN/A
D404052528686
1041049494
142142167167N/AN/A
F16¼16¼16¼16¼16¼16¼99⁄16
99⁄16
16¼16¼16¼16¼99⁄16
99⁄16
17¼17¼
C000556
NOTES:1. All dimensions in inches subject to manufacturing
tolerances.
2. Curb to be shipped loose and assembled in the field.
3. Curb must be installed square and level.
4. Curb requires intermediate structural support and is not to be corner post mounted.
5. Gaskets to be shipped with unit.
6. Bolting accessories shipped with curb.
7. Curb drawings shown are for units which have controls on the “standard” side.
8. Available on horizontal units only.
All Models
13
X76½76½104½104½118½118½150½150½104½104½118½118½150½150½N/AN/A
D1115⁄16
1515⁄16
1815⁄16
221⁄16
251⁄16
279⁄16
31½37
601⁄8601⁄879¾79¾1005⁄81005⁄8115¾1475⁄8
B103⁄8139⁄16
1619
247⁄8273⁄8313⁄8367⁄81619
247⁄8273⁄8313⁄8367⁄8431⁄16
41
A123⁄8
1013⁄16
95⁄895⁄8
107⁄16
107⁄16
1413⁄16
1413⁄16
95⁄895⁄8
107⁄16
107⁄16
1413⁄16
1413⁄16
1611⁄16
30¼
W46½46½46½46½72½72½85½85½88½88½124½124½148½148½169½204½
With CW or DX CoolingL
207½207½235½235½274½274½311½311½235½235½274½274½311½311½N/AN/A
109112115118120122125130215218220222225230233240
Roof Curbs For Base Units With Return Air Before Burner
Dimensions
Model Without CoolingC
2213⁄16
2013⁄16
193⁄16
195⁄16
3713⁄16
355⁄16
413⁄8357⁄823¼23¼351⁄8351⁄835¼35¼39½395⁄8
EN/AN/AN/AN/AN/AN/AN/AN/A
1815⁄16
221⁄16
251⁄16
279⁄16
31½37
397⁄8537⁄8
A3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼N/AN/A
B181818182626
34½34½18182626
34½34½N/AN/A
C3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼N/AN/A
D404052528686
1041049494
142142167167N/AN/A
W46½46½58½58½92½92½110½110½100½100½148½148½173½173½N/AN/A
Y00121220202525121224242525
N/AN/A
L125½125½125½125½150½150½155½155½125½125½150½150½155½155½181½195½
C000557
F3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼3¼
NOTES:1. All dimensions in inches subject to manufacturing
tolerances.
2. Curb to be shipped loose and assembled in the field.
3. Curb must be installed square and level.
4. Curb requires intermediate structural support and is not to be corner post mounted.
5. Gaskets to be shipped with unit.
6. Bolting accessories shipped with curb.
7. Curb drawings shown are for units which have controls on the “standard” side.
8. Available on horizontal units only.
J42424242686881818484
120120144144163198
G20¼20¼20¼20¼20¼20¼26½26½20¼20¼20¼20¼26½26½31¼31¼
H2¼2¼2¼2¼2¼2¼2¼2¼2¼2¼2¼2¼2¼2¼3¼3¼
All Models
14
A4242424256566868
109112115118120122125130
109112115118120122125130
Vertical Models — Sizes 109 Through 130
Dimensions
Model DimensionsB5252525278789191
G2222222222222828
D135135135135166166172172
C7777777796969696
E103⁄8139⁄16
1619
247⁄8273⁄8313⁄8367⁄8
F151⁄8139⁄16
123⁄8123⁄8133⁄16
133⁄16
179⁄16
179⁄16
NOTE: All dimensions in inches subject to manufacturing tolerances.
Model Dimensions
UNIT COMPONENTS 1. Centrifugal supply fan 2. Fan motor 3. Line burner
4. Control cabinet 5. Hinged control cabinet access door 6. Observation port
7. Access door 8. Access door (piping compartment) 9. Lifting lug
10. Unit base11. Manifold compartment
C000496A
M1115⁄16
1515⁄16
1815⁄16
221⁄16
251⁄16
279⁄16
31½37
L14½12½111⁄877⁄8123⁄8123⁄8153⁄8153⁄8
K14¼14¼14¼14¼14¼14¼20¼20¼
P27¾27¾27¾27¾48484949
J191919191919
125⁄16
125⁄16
H3636363648484848
UNIT COMPONENTS
15
109112115118120122125130
109112115118120122125130
Vertical Models — Sizes 109 Through 130 with Mixing Box
Dimensions
Model DimensionsB5252525278789191
D167167167167204204209209
C7777777796969696
E103⁄8139⁄16
1619
247⁄8273⁄8313⁄8367⁄8
F151⁄8139⁄16
123⁄8123⁄8133⁄16
133⁄16
179⁄16
179⁄16
NOTE: All dimensions in inches subject to manufacturing tolerances.
Model Dimensions
UNIT COMPONENTS 1. Centrifugal supply fan 2. Fan motor 3. Line burner
4. Control cabinet 5. Hinged control cabinet access door 6. Observation port
7. Access door 8. Access door (piping compartment) 9. Lifting lug
10. Unit support stand11. Manifold compartment12. AirTrak air flow station (required for
ETL listed Return Air Unit)
C000550B
T20¼20¼20¼20¼20¼20¼26½26½
M1115⁄16
1515⁄16
1815⁄16
221⁄16
251⁄16
279⁄16
31½37
L14½12½111⁄877⁄8123⁄8123⁄8153⁄8153⁄8
U4242424268688181
H3636363648484848
G5454545460606565
A4242424256566868
"A" "B"
02.06.15 C000550B
"C"
"G"
"H"
"D"
"E"
"F"
UNIT COMPONENTS
"M" "L"
"U" 5
"T"
6
R/A
12
"T" x "U"
1 TYP
S/A
O/A
INLET SCREENOPEN ON (4) SIDES
SEPARATE HEREFOR SHIPPING3
1
4
5
2
8
11
6
7
10
9 9
(SIDE DISCHARGE)FRONT VIEW
Model
122120
112109
EDCBA
9696
77
777752
52
42
5656
4242
52
7878
167
204204
167167
19
27 3/824 7/8
10 3/813 9/16
RIGHT HAND SHOWNLEFT IS OPPOSITE
DimensionsGF
12 3/813 3/1613 3/16
15 1/813 9/16
54
6060
5454
SIDE VIEW
118115
130125 96
966868
9191
209209
36 7/831 3/8 17 9/16
17 9/16 6565
42 52 77 167 16 12 3/8 54 363648484848
H3636
11 1/87 7/812 3/812 3/815 3/815 3/8
L14 1/212 1/2
18 15/16
3731 1/2
27 9/1625 1/1622 1/16
15 15/1611 15/16
M
20 1/4
26 1/226 1/220 1/420 1/420 1/4
20 1/420 1/4
T
42
8181686842
4242U
7
18"
16
Vertical Models — Sizes 215 Through 230
Dimensions
Model
215218220222225230
215218220222225230
DimensionsA
424256566868
H363648484848
NOTE: All dimensions in inches subject to manufacturing tolerances.
Model Dimensions
B9494130130154154
C777796969696
D135135166166172172
E1619
247⁄8273⁄8313⁄8367⁄8
F123⁄8123⁄8133⁄16
133⁄16
179⁄16
179⁄16
G222222222828
P65¾65¾873⁄8873⁄81113⁄81113⁄8
M1815⁄16
221⁄16
251⁄16
279⁄16
31½37
L77⁄877⁄8123⁄8123⁄8153⁄8153⁄8
K14¼14¼14¼14¼20¼20¼
J19191919
125⁄16
125⁄16
I22¼16
295⁄8245⁄8375⁄8265⁄8
C000464A
UNIT COMPONENTS 1. Centrifugal supply fan 2. Fan motor 3. Line burner
4. Control cabinet 5. Hinged control cabinet access door 6. Observation port
7. Access door 8. Access door (piping compartment) 9. Lifting lug
10. Unit support stand11. Manifold compartment
UNIT COMPONENTS
17
Vertical Models — Sizes 215 Through 230 with Mixing Box
Dimensions
Model
215218220222225230
215218220222225230
DimensionsA
424256566868
NOTE: All dimensions in inches subject to manufacturing tolerances.
Model Dimensions
B9494130130154154
C777796969696
D167167204204209209
E1619
247⁄8273⁄8313⁄8367⁄8
F123⁄8123⁄8133⁄16
133⁄16
179⁄16
179⁄16
G545460606565
U8484
120120144144
T20¼20¼20¼20¼26½26½
M1815⁄16
221⁄16
251⁄16
279⁄16
31½37
L77⁄877⁄8123⁄8123⁄8153⁄8153⁄8
I22¼16
295⁄8245⁄8375⁄8265⁄8
H363648484848
C000551C
UNIT COMPONENTS 1. Centrifugal supply fan 2. Fan motor 3. Line burner
4. Control cabinet 5. Hinged control cabinet access door 6. Observation port
7. Access door 8. Access door (piping compartment) 9. Lifting lug
10. Unit support stand11. Manifold compartment12. AirTrak air flow station (required for
ETL listed Return Air Unit)
"A" "B"
"C"
"G"
"H"
"D"
"E"
"F"
UNIT COMPONENTS
"M" "L"
"U" 5
"T"
6
R/A
12
"T" x "U"
1 TYP
S/A
O/A
INLET SCREENOPEN ON (4) SIDES
SEPARATE HEREFOR SHIPPING3
1
4
5
2
8
11
6
7
10
9 9
(SIDE DISCHARGE)FRONT VIEW
RIGHT HAND SHOWNLEFT IS OPPOSITE
SIDE VIEW
"M""I"
A42
6868565642
Model
215218220222225230
HGFEDCBDimensions
L M T
167167
209209204204
4848
4848
3636 20 1/418 15/167 7/894 77 16 12 3/8 54
26 1/226 1/220 1/420 1/4
3731 1/2
27 9/1625 1/16
15 3/815 3/812 3/812 3/8
154154130130
96969696
36 7/831 3/827 3/824 7/8
17 9/1617 9/1613 3/1613 3/16 60
606565
20 1/422 1/167 7/894 77 19 12 3/8 54
U
8484
120120
14414437 5/8
26 5/8
I22 1/4
1629 5/824 5/8
7
18"
02.06.15 C000551C
18
233240
233240
Vertical Models — Sizes 233 and 240
Dimensions
Model DimensionsB
175210
K20¼20¼
I36
397⁄8
W7286
A76
87¼
J2020
D205219
M397⁄8537⁄8
C117131
L1720
E431⁄16
41
O4545
F197⁄16
33
P130166
NOTE: All dimensions in inches subject to manufacturing tolerances.
Model Dimensions
UNIT COMPONENTS 1. Centrifugal supply fan 2. Fan motor 3. Line burner
4. Control cabinet 5. Hinged control cabinet access door 6. Observation port
7. Access door 8. Access door (piping compartment) 9. Lifting lug
10. Unit support stand11. Manifold compartment
C000463
19
233240
233240
Vertical Models — Sizes 233 and 240 with Mixing Box
Dimensions
Model DimensionsA
7687¼
I36
397⁄8
F197⁄16
33
W7286
C117131
M397⁄8587⁄8
B175210
L1720
D247261
T31¼31¼
E431⁄16
41
U163198
NOTE: All dimensions in inches subject to manufacturing tolerances.
Model Dimensions
UNIT COMPONENTS 1. Centrifugal supply fan 2. Fan motor 3. Line burner
4. Control cabinet 5. Hinged control cabinet access door 6. Observation port
7. Access door 8. Access door (piping compartment) 9. Lifting lug
10. Unit support stand11. Manifold compartment12. Return air flow station
(required for ETL listed Return Air Unit)
C000549A
LEFT IS OPPOSITE
RIGHT HAND SHOWN
FRONT VIEW(SIDE DISCHARGE)
C000549A
SIDE VIEW
R/A
S/A
A/O
UNIT COMPONENTS
20
1204878605
20¼68
115-1183652545
20¼42
109-1123652545
20¼42
1224878605
20¼68
1256091655
26½81
215-2183694545
20¼84
220-22248130605
20¼120
240791⁄4210706
31¼198
23368175706
31¼163
Model 240198 x 31¼165 x 52
ABCDEF
ABC
240(88)
16 x 25 x 2
ModelFilter Qty.
& Size
V-Bank Filter and Filter Information
Dimensions
Mixing Box and Filter Information
MODELDimension 233
68141½
28
220-22248
1015⁄822
12248
623⁄822
225-23060
1213⁄828
215-21836
91½22
130606328
125606328
109-11236
47¼22
12048
623⁄822
115-11836
47¼22
24079¼17728
215-218(18)
15 x 20 x 2
220-222(25)
20 x 20 x 2
225-230(36)
20 x 25 x 2
125-130(18)
20 x 25 x 2
120-122(15)
20 x 20 x 2
115-118(9)
15 x 20 x 2
233(49)
20 x 25 x 2
109-112(9)
15 x 20 x 2
ModelDimension225-230
60154655
26½144
1306091655
26½81
R/A - I.D.O/A - I.D.
109-11842 x 20¼42 x 20¼
12068 x 20¼44 x 32¼
12268 x 20¼44 x 32¼
12581 x 26½51 x 44¼
233163 x 31¼130 x 52
225-230144 x 26½114 x 44¼
220-222120 x 20¼96 x 32¼
215-21884 x 20¼84 x 20¼
13081 x 26½51 x 44¼
C000469
C000469
NOTE: All dimensions in inches subject to manufacturing tolerances.
RETURN AIR FLOW STATIONMIXING BOX
NOTES: 1) Refer to V-bank information above for filter quantity and size. 2) All dimensions in inches subject to manufacturing tolerances.
21
24045
152½45
ABCD
Dampers
Dimensions
Discharge Louvers
ModelDimension 109-11236
47¼177⁄16
2013⁄16
215-21836
91½227⁄8647⁄8
23368
141½47
1205⁄8
220-22248
1015⁄831¼84½
225-23060
1213⁄840¾1053⁄8
125-1306063
40¾417⁄8
120-12248
623⁄831¼32½
115-11836
47¼227⁄8
2615⁄16
240*79¼17745
58¾*On 240 discharge damper ONLY, there are two (2) dampers side by side. Dimensions shown are for each damper. Overall width of 240 discharge damper is 152½”.NOTE: All dimensions in inches subject to manufacturing tolerances.
ModelDimension 109-112
212013⁄16
177⁄16
215-21824
647⁄823
23345
1205⁄847
220-22245
84½31¼
225-23045
1053⁄840¾
125-13045
417⁄840¾
120-12245
32½31¼
115-11824
2615⁄16
23
ABC
C000468
NOTE: All dimensions in inches subject to manufacturing tolerances.
C000468
22
2407917751½(64)
20 x 25
109-11236
47¼32(4)
16 x 20
ABC
Filter Qty.& Size
Intake Hoods and Filter Information
Dimensions
FOR MODELS 109-112 FOR MODELS 115-118, 120-122, 215-218, 220-222
FOR MODELS 125-130, 225-230, 233 FOR MODEL 240
ModelDimension 23368
140½56½(75)
15 x 20
220-22248
1015⁄844½(18)
20 x 25
225-23060
1213⁄856½(66)
15 x 20
215-21836
91½32
(16)16 x 20
125-130606353
(30)15 x 20
120-12248
623⁄838½(12)
20 x 20
115-11836
47¼32(8)
16 x 20
C000482A
NOTE: All dimensions in inches subject to manufacturing tolerances.
23
33 x4051 x 5151 x 8584 x 10351 x 9363 x 141
84 x 166 @ 50,000N/AN/A
E6241233242433——
Dimensions
109-112115-118120-122125-130215-218220-222225-230
233240
Cooling Coil Section
Dimensions
ModelL
82110124156110124156——
L1——2456172456——
C12212329212329——
A181826
34½1826
34½——
NOTE: All dimensions in inches subject to manufacturing tolerances.
W526498116106154179——
B40528610494142167——
D0122025122425——
H42606093607293——
P000882
Max Coil SizeFH x FL
Notes: 1. Shipped separate and assembled in the field.2. Dual blower unit shown, single blower unit similar.
24
5F and 5R Discharge Dimensions and Weights C000781
Dimensions
25
5F and 5R Discharge Dimensions and Weights
Dimensions
DISCHARGE DIMENSIONS AND WEIGHT
Model Size Discharge Size5F and 5R Discharge
D5 L5 W5 Weight 5F Weight 5R
109 17 17-23/32 9-1/4 25-1/2 45 100
112 22 25-23/32 11 34-1/2 60 110
115 25 31-5/32 14 40 65 120
118 28 36-17/32 16-5/8 50 90 160
120 36 42-17/32 18-1/4 57 110 185
122 40 49-17/32 20-1/8 66-1/2 120 200
125 44 49-17/32 22 66-1/2 160 245
130 44 49-17/32 22 66-1/2 160 245
215 36 42-17/32 18-1/4 57 110 185
218 40 49-17/32 20-1/8 66-1/2 120 200
220 44 49-17/32 22 66-1/2 160 245
222 44 49-17/32 22 66-1/2 160 245
225 44 49-17/32 22 66-1/2 160 245
NOTES:1. All dimensions are in inches.2. All weights are in pounds.
26
8F and 8R Discharge Dimensions and Weights C000782
Dimensions
27
8F and 8R Discharge Dimensions and Weights
Dimensions
DISCHARGE DIMENSIONS AND WEIGHT
Model Size Discharge Size8F and 8R Discharge
D8 L8 W8 Weight 8F Weight 8R
109 22 25-23/32 29-7/8 47-1/2 80 100
112 22 25-23/32 29-7/8 47-1/2 80 100
115 22 25-23/32 29-7/8 47-1/2 80 100
118 28 36-17/32 35-1/2 64 100 125
120 36 42-17/32 47-1/16 77 120 145
122 40 49-17/32 54-9/16 89-1/2 140 165
125 44 49-17/32 53-7/16 86 160 195
130 44 49-17/32 53-7/16 86 160 195
215 36 42-17/32 47-1/16 77 120 145
218 40 49-17/32 54-9/16 89-1/2 140 165
220 44 49-17/32 53-7/16 86 160 195
222 44 49-17/32 53-7/16 86 160 195
225 44 49-17/32 53-7/16 86 160 195
NOTES:1. All dimensions are in inches.2. All weights are in pounds.
28
Discharge Options
5F and 5R Discharge Pressure Drop and CoverageModel SCFM Discharge Size Air Pressure Drop Mounting Height Fixed Coverage Revolving Coverage
109
1600
17
0.05 9 58 x 58 58 x 581800 0.06 9 59 x 59 59 x 592000 0.07 10 61 x 61 61 x 612250 0.09 10 63 x 63 63 x 632500 0.11 10 65 x 65 65 x 652750 0.13 11 67 x 67 67 x 673000 0.16 11 69 x 69 69 x 69
112
3250
22
0.06 13 75 x 75 75 x 753500 0.07 13 76 x 76 76 x 763750 0.09 14 77 x 77 77 x 774000 0.10 14 77 x 77 77 x 774250 0.11 14 78 x 78 78 x 78
115
4500
25
0.06 13 86 x 86 86 x 865000 0.07 13 87 x 87 87 x 875500 0.08 14 89 x 89 89 x 896000 0.10 14 90 x 90 90 x 90
118
6500
28
0.07 14 92 x 92 92 x 927000 0.08 15 96 x 96 96 x 967500 0.09 15 101 x 101 101 x 1018000 0.10 16 105 x 105 105 x 1058500 0.11 16 109 x 109 109 x 109
120
9000
36
0.06 14 92 x 92 92 x 929500 0.07 15 100 x 100 100 x 10010000 0.07 16 107 x 107 107 x 10710500 0.08 16 115 x 115 115 x 11511000 0.09 17 122 x 122 122 x 122
122
11000
40
0.05 17 122 x 122 122 x 12212000 0.06 18 125 x 125 125 x 12513000 0.07 18 127 x 127 127 x 12714000 0.08 19 130 x 130 130 x 13015000 0.09 19 132 x 132 132 x 132
125
14000
44
0.05 18 129 x 129 129 x 12915000 0.06 19 132 x 132 132 x 13216000 0.07 20 134 x 134 134 x 13418000 0.09 21 140 x 140 140 x 14020000 0.11 23 145 x 145 145 x 145
130
22000
44
0.13 19 132 x 132 132 x 13224000 0.16 21 137 x 137 137 x 13726000 0.19 22 141 x 141 141 x 14128000 0.22 24 146 x 146 146 x 14630000 0.25 25 150 x 150 150 x 150
29
Discharge Options
5F and 5R Discharge Pressure Drop and CoverageModel SCFM Discharge Size Air Pressure Drop Mounting Height Fixed Coverage Revolving Coverage
215
9000
36
0.06 16 109 x 109 109 x 1099500 0.07 16 111 x 111 111 x 11110000 0.07 17 114 x 114 114 x 11410500 0.08 17 116 x 116 116 x 11611000 0.09 17 118 x 118 118 x 11811500 0.10 18 121 x 121 121 x 12112000 0.11 18 123 x 123 123 x 123
218
12500
40
0.07 18 123 x 123 123 x 12313000 0.07 18 124 x 124 124 x 12414000 0.08 18 126 x 126 126 x 12615000 0.10 19 128 x 128 128 x 12816000 0.11 19 130 x 130 130 x 13017000 0.12 19 132 x 132 132 x 132
220
18000
44
0.09 22 135 x 135 135 x 13519000 0.10 23 139 x 139 139 x 13920000 0.11 23 142 x 142 142 x 14221000 0.12 24 146 x 146 146 x 14622000 0.14 25 150 x 150 150 x 15023000 0.15 25 153 x 153 153 x 15324000 0.16 26 157 x 157 157 x 15725000 0.18 26 160 x 160 160 x 16026000 0.19 27 164 x 164 164 x 164
222
25000
44
0.18 27 160 x 160 160 x 16026000 0.19 27 163 x 163 163 x 16327000 0.21 28 166 x 166 166 x 16628000 0.22 28 169 x 169 169 x 16929000 0.24 28 171 x 171 171 x 17130000 0.25 29 174 x 174 174 x 17431000 0.27 29 177 x 177 177 x 177
225
30000
44
0.25 28 170 x 170 170 x 17032000 0.29 29 176 x 176 176 x 17634000 0.33 30 184 x 184 184 x 18436000 0.36 30 187 x 187 187 x 18738000 0.41 31 192 x 192 192 x 19240000 0.45 32 198 x 198 198 x 198
30
Discharge Options
8F and 8R Discharge Pressure Drop and CoverageModel SCFM Discharge Size Air Pressure Drop Mounting Height Fixed Coverage Revolving Coverage
109
1600
22
0.03 14 24 x 47 47 x 471800 0.04 14 25 x 50 50 x 502000 0.05 15 27 x 53 53 x 532250 0.07 16 28 x 56 56 x 562500 0.08 17 30 x 59 59 x 592750 0.10 17 31 x 63 63 x 633000 0.12 18 33 x 66 66 x 66
112
3250
22
0.14 18 33 x 66 66 x 663500 0.17 19 34 x 68 68 x 683750 0.19 19 36 x 71 71 x 714000 0.22 20 37 x 73 73 x 734250 0.25 20 38 x 75 75 x 75
115
4500
22
0.28 20 39 x 78 78 x 785000 0.34 21 40 x 79 79 x 795500 0.41 22 40 x 80 80 x 806000 0.49 23 41 x 81 81 x 81
118
6500
28
0.17 26 42 x 84 84 x 847000 0.20 27 44 x 87 87 x 877500 0.23 28 45 x 90 90 x 908000 0.26 28 47 x 92 92 x 928500 0.29 29 48 x 95 95 x 95
120
9000
36
0.18 30 49 x 97 97 x 979500 0.20 31 51 x 100 100 x 10010000 0.22 33 52 x 104 104 x 10410500 0.25 34 54 x 107 107 x 10711000 0.27 35 55 x 110 110 x 110
122
11000
40
0.14 35 55 x 110 110 x 11012000 0.17 37 56 x 112 112 x 11213000 0.20 39 57 x 113 113 x 11314000 0.23 41 57 x 115 115 x 11515000 0.26 43 58 x 116 116 X 116
125
14000
44
0.14 40 57 x 114 114 x 11415000 0.15 43 58 x 117 117 x 11716000 0.17 46 60 x 119 119 x 11918000 0.22 52 62 x 125 125 x 12520000 0.27 58 65 x 130 130 x 130
130
22000
44
0.33 42 59 x 116 116 x 11624000 0.39 47 61 x 120 120 x 12026000 0.46 51 63 x 124 124 x 12428000 0.53 56 64 x 128 128 x 12830000 0.61 60 66 x 132 132 x 132
31
Discharge Options
8F and 8R Discharge Pressure Drop and CoverageModel SCFM Discharge Size Air Pressure Drop Mounting Height Fixed Coverage Revolving Coverage
215
9000
36
0.18 30 49 x 97 97 x 979500 0.20 31 50 x 100 100 x 10010000 0.22 32 51 x 103 103 x 10310500 0.25 34 53 x 105 105 x 10511000 0.27 35 54 x 107 107 x 10711500 0.29 36 55 x 110 110 x 11012000 0.32 37 56 x 112 112 x 112
218
12500
40
0.18 38 56 x 112 112 x 11213000 0.19 39 56 x 113 113 x 11314000 0.22 40 57 x 115 115 x 11515000 0.25 41 58 x 116 116 x 11616000 0.29 43 59 x 118 118 x 11817000 0.33 44 60 x 120 120 x 120
220
18000
44
0.23 54 64 X 126 126 x 12619000 0.25 57 65 x 129 129 x 12920000 0.28 60 66 x 131 131 x 13121000 0.31 62 67 x 134 134 x 13422000 0.34 65 69 x 136 136 x 13623000 0.37 68 70 x 140 140 x 14024000 0.40 71 71 x 141 141 x 14125000 0.43 73 72 X 144 144 x 14426000 0.47 76 73 X 146 146 X 146
222
25000
44
0.43 75 72 X 144 144 x 14426000 0.46 77 73 x 146 146 X 14627000 0.50 79 74 x 149 149 x 14928000 0.54 81 76 x 151 151 x 15129000 0.58 82 77 x 153 153 x 15330000 0.62 84 78 x 156 156 x 15631000 0.66 86 79 x 158 158 x 158
225
30000
44
0.62 81 75 x 151 151 x 15132000 0.70 85 78 x 157 157 x 15734000 0.79 92 82 x 165 165 x 16536000 0.89 94 85 x 170 170 x 17038000 0.99 99 88 x 177 177 x 17740000 1.10 103 91 x 183 183 x 183
32
1) 21 x 241) 24 x 241) 24 x 241) 27 x 271) 27 x 271) 27 x 331) 27 x 331) 27 x 361) 27 x 401) 30 x 401) 30 x 401) 33 x 401) 36 x 381) 36 x 421) 39 x 431) 39 x 471) 42 x 481) 45 x 481) 45 x 511) 48 x 511) 48 x 511) 39 x 661) 42 x 661) 42 x 681) 45 x 681) 45 x 711) 45 x 711) 45 x 781) 48 x 791) 45 x 851) 51 x 852) 30 x 682) 30 x 722) 30 x 772) 33 x 792) 36 x 802) 36 x 882) 36 x 962) 39 x 962) 39 x 1032) 42 x 103
66.7575.3281.98
107.40116.44152.08162.03181.41173.81177.75186.56210.33256.55249.13283.55324.54352.37382.79419.74443.59463.18485.25515.03545.65576.37613.08613.08689.82749.09819.55876.03768.50837.88912.86
1034.901151.281123.821283.001389.921541.841654.46
457450500444494444485481467450480464474476472471464467471471500503494504494496496492494494498494500499497500500500500502499
1,6001,8002,0002,2502,5002,7503,0003,2503,5003,7504,0004,2504,5005,0005,5006,0006,5007,0007,5008,0008,5009,0009,500
10,00010,50011,00011,00012,00013,00014,00015,00014,00015,00016,00018,00020,00022,00024,00026,00028,00030,000
109
112
115
118
120
122
125
130
Coil Face Area
Qty) FH x FL68.8/66.668.7/66.569.2/66.867.0/64.867.5/65.264.6/62.565.1/62.964.5/62.466.4/64.367.1/64.967.4/65.166.5/64.364.1/62.066.4/64.265.9/63.765.0/62.965.0/62.964.0/62.764.4/62.364.6/62.565.0/62.865.2/63.065.1/62.965.0/62.864.9/62.764.6/62.464.6/62.464.0/61.964.0/61.863.6/61.563.7/61.664.9/62.764.6/62.464.2/62.064.0/61.964.0/61.866.1/63.865.3/63.165.3/63.164.8/62.664.8/62.6
0.310.340.360.390.430.470.490.350.360.380.400.420.350.370.390.430.350.370.380.400.430.340.350.360.370.380.340.360.370.390.420.330.350.360.390.430.360.380.400.430.46
Four Row DX Coil Data
ModelNo.
SCFM
FaceVelocity(FPM)
(1) Nominal cooling capacity based on 4 row/8 FPI DX coil with 45° suction temperature and 95°/77° entering air temperature.(2) Cabinet Loss includes loss for centrifugal blower plenum effect and diffuser(s). This factor must be added to all units.(3) Calculating Cooling Coil Section Pressure Drop:
A. Cabinet Loss ___’’ W.C.
B. Coil Air P.D. ___’’ W.C.
C. Downturn Plenum (if applicable) 0.10’’ W.C.
Cooling Coil Section Pressure Drop ___’’ W.C.
Refer to Blower HP Charts for Total External Static pressure available.
0.390.380.450.370.450.370.430.430.410.380.420.400.420.420.410.410.400.410.410.410.450.460.450.460.450.450.450.440.450.450.450.450.450.450.450.450.450.450.450.460.45
Air P.D. (3)Total MBH (1) LAT
4 Row DX
Performance Table
CabinetLoss(2) (3)
33
215
218
220
222
225
230
1) 42 x 621) 42 x 651) 42 x 681) 42 x 721) 42 x 761) 42 x 791) 42 x 801) 45 x 801) 45 x 831) 45 x 901) 48 x 901) 51 x 931) 51 x 932) 30 x 862) 30 x 912) 30 x 962) 30 x 1012) 30 x 1062) 30 x 1112) 30 x 1112) 30 x 1202) 30 x 1252) 30 x 1202) 30 x 1252) 30 x 1302) 30 x 1352) 30 x 1412) 311/2 x 1392) 311/2 x 1392) 39 x 1112) 39 x 1182) 39 x 1252) 39 x 1332) 39 x 1402) 39 x 1472) 39 x 1552) 42 x 1512) 42 x 1582) 42 x 1512) 42 x 1662) 42 x 166
472.57509.32545.65586.52626.29660.35684.48719.55753.89724.49775.31847.85886.57903.82987.60
1069.161149.161227.381304.041342.961446.281519.001446.281519.001590.441537.801624.161671.421701.501699.201842.661982.602127.222113.162260.982415.242512.382660.822512.382815.642894.58
498501504500496499514500501498500486516502501500499498497519500499500499498498494493510499501502500501502500500499500496516
9,0009,500
10,00010,50011,00011,50012,00012,50013,00014,00015,00016,00017,00018,00019,00020,00021,00022,00023,00024,00025,00026,00025,00026,00027,00028,00029,00030,00031,00030,00032,00034,00036,00038,00040,00042,00044,00046,00044,00048,00050,000
Coil Face Area
Qty) FH x FL65.6/63.465.3/63.165.0/62.864.6/62.464.2/62.064.0/61.964.2/62.064.0/61.863.8/61.765.9/63.665.9/63.665.4/63.365.8/63.566.4/64.165.8/63.665.3/63.164.9/62.764.6/62.464.3/62.164.6/62.363.9/61.863.7/61.663.9/61.863.7/61.663.5/61.464.9/62.764.5/62.364.6/62.464.8/62.664.3/62.164.0/61.863.7/61.663.5/61.464.6/62.564.3/62.264.0/61.964.1/62.063.9/61.864.1/62.063.6/61.563.9/61.7
0.350.360.370.380.390.410.430.340.350.360.380.400.430.340.350.360.370.380.390.410.430.440.360.370.380.390.410.420.440.350.360.370.380.410.430.450.470.480.360.380.39
Four Row DX Coil Data
ModelNo.
SCFM
FaceVelocity(FPM)
(1) Nominal cooling capacity based on 4 row/8 FPI DX coil with 45° suction temperature and 95°/77° entering air temperature.(2) Cabinet Loss includes loss for centrifugal blower plenum effect and diffuser(s). This factor must be added to all units.(3) Calculating Cooling Coil Section Pressure Drop:
A. Cabinet Loss ___’’ W.C.
B. Coil Air P.D. ___’’ W.C.
C. Downturn Plenum (if applicable) 0.10’’ W.C.
Cooling Coil Section Pressure Drop ___’’ W.C.
Refer to Blower HP Charts for Total External Static pressure available.
0.450.460.460.450.450.450.480.450.460.450.450.430.480.460.460.450.450.450.450.480.450.450.450.450.450.450.450.440.470.450.460.460.450.460.460.460.450.450.450.450.48
Air P.D. (3)Total MBH (1) LAT
4 Row DX
Performance Table
CabinetLoss(2) (3)
34
1) 21 x 241) 24 x 241) 24 x 241) 27 x 271) 27 x 271) 27 x 331) 27 x 331) 27 x 361) 27 x 401) 30 x 401) 30 x 401) 33 x 401) 36 x 381) 36 x 421) 39 x 431) 39 x 471) 42 x 481) 45 x 481) 45 x 511) 48 x 511) 48 x 511) 39 x 661) 42 x 661) 42 x 681) 45 x 681) 45 x 711) 45 x 711) 45 x 781) 48 x 791) 45 x 851) 51 x 852) 30 x 682) 30 x 722) 30 x 772) 33 x 792) 36 x 802) 36 x 882) 36 x 962) 39 x 962) 39 x 1032) 42 x 103
107.03121.02131.23157.03170.23183.15196.04219.51244.97262.28275.82297.36306.73349.25389.13401.25438.69471.96515.33549.69576.37579.05613.63651.95687.35732.48732.48825.31896.82983.19
1051.45916.46
1001.521093.121239.561381.781552.121716.361859.401846.801837.26
457450500444494444485481467450480464474476472471464467471471500503494504494496496492494494498494500499497500500500500502499
1,6001,8002,0002,2502,5002,7503,0003,2503,5003,7504,0004,2504,5005,0005,5006,0006,5007,0007,5008,0008,5009,0009,500
10,00010,50011,00011,00012,00013,00014,00015,00014,00015,00016,00018,00020,00022,00024,00026,00028,00030,000
109
112
115
118
120
122
125
130
Coil Face Area
Qty) FH x FL59.6/58.859.5/58.760.1/59.258.6/57.859.3/58.459.7/58.960.2/59.359.5/58.658.6/57.858.6/57.859.0/58.158.6/57.659.2/58.458.6/57.858.3/57.559.7/58.859.4/58.659.5/58.659.0/58.259.0/58.259.4/58.560.6/59.760.5/59.660.3/59.460.2/59.359.8/58.959.8/58.959.0/58.259.0/58.158.5/57.758.6/57.760.2/59.359.7/58.959.2/58.359.0/58.259.0/58.158.4/57.658.1/57.258.1/57.260.0/59.161.6/60.7
0.310.340.360.390.430.470.490.350.360.380.400.420.350.370.390.430.350.370.380.400.430.340.350.360.370.380.340.360.370.390.420.330.350.360.390.430.360.380.400.430.46
Six Row DX Coil Data
ModelNo.
SCFM
FaceVelocity(FPM)
(1) Nominal cooling capacity based on 6 row/8 FPI DX coil with 45° suction temperature and 95°/77° entering air temperature.(2) Cabinet Loss includes loss for centrifugal blower plenum effect and diffuser(s). This factor must be added to all units.(3) Calculating Cooling Coil Section Pressure Drop:
A. Cabinet Loss ___’’ W.C.
B. Coil Air P.D. ___’’ W.C.
C. Downturn Plenum (if applicable) 0.10’’ W.C.
Cooling Coil Section Pressure Drop ___’’ W.C.
Refer to Blower HP Charts for Total External Static pressure available.
0.590.570.680.560.670.560.650.640.610.570.640.600.610.630.620.620.600.610.620.620.680.690.670.690.670.670.670.660.670.670.680.670.680.680.680.680.680.680.680.690.69
Air P.D. (3)Total MBH (1) LAT
6 Row DX
Performance Table
CabinetLoss(2) (3)
35
0.680.690.690.680.670.680.720.680.690.680.680.650.720.690.690.68
215
218
220
222
225
230
1) 42 x 621) 42 x 651) 42 x 681) 42 x 721) 42 x 761) 42 x 791) 42 x 801) 45 x 801) 45 x 831) 45 x 901) 48 x 901) 51 x 931) 51 x 932) 30 x 862) 30 x 912) 30 x 96
549.69607.31651.95701.06749.29791.24822.89862.65905.04993.00
1062.171146.981201.001262.581347.221430.30
498501504500496499514500501498500486516502501500
9,0009,500
10,00010,50011,00011,50012,00012,50013,00014,00015,00016,00017,00018,00019,00020,00021,00022,00023,00024,00025,00026,00025,00026,00027,00028,00029,00030,00031,00030,00032,00034,00036,00038,00040,00042,00044,00046,00044,00048,00050,000
Coil Face Area
Qty) FH x FL61.7/60.760.7/59.860.3/59.459.7/58.959.3/58.459.0/58.259.1/58.359.0/58.158.8/57.958.3/57.458.3/57.558.0/57.258.4/57.558.6/57.758.3/57.558.1/57.2
CF
CF
CF
CF
0.350.360.370.380.390.410.430.340.350.360.380.400.430.340.350.360.370.380.390.410.430.440.360.370.380.390.410.420.440.350.360.370.380.410.430.450.470.480.360.380.39
Six Row DX Coil Data
ModelNo.
SCFM
FaceVelocity(FPM)
(1) Nominal cooling capacity based on 6 row/8 FPI DX coil with 45° suction temperature and 95°/77° entering air temperature.(2) Cabinet Loss includes loss for centrifugal blower plenum effect and diffuser(s). This factor must be added to all units.(3) Calculating Cooling Coil Section Pressure Drop:
A. Cabinet Loss ___’’ W.C.
B. Coil Air P.D. ___’’ W.C.
C. Downturn Plenum (if applicable) 0.10’’ W.C.
Cooling Coil Section Pressure Drop ___’’ W.C.
Refer to Blower HP Charts for Total External Static pressure available.
Air P.D. (3)Total MBH (1) LAT
6 Row DX
Performance Table
CabinetLoss(2) (3)
36
457450500444494444485481467450480464474476472471464467471471471503494504494496496492494494498494500499497500500500500502499
1) 21 x 241) 24 x 241) 24 x 241) 27 x 271) 27 x 271) 27 x 331) 27 x 331) 27 x 361) 27 x 401) 30 x 401) 30 x 401) 33 x 401) 36 x 381) 36 x 421) 39 x 431) 39 x 471) 42 x 481) 45 x 481) 45 x 511) 48 x 511) 51 x 511) 39 x 661) 42 x 661) 42 x 681) 45 x 681) 45 x 711) 45 x 711) 45 x 781) 48 x 791) 48 x 851) 51 x 852) 30 x 682) 30 x 722) 30 x 772) 33 x 792) 36 x 802) 36 x 882) 36 x 962) 39 x 962) 39 x 1032) 42 x 103
83.3594.20
100.06121.61129.92157.67165.98150.67170.61185.61192.87207.91214.78245.65273.01305.26334.88359.91390.67416.40442.19488.31517.72551.01583.47614.90614.90683.97741.07808.06863.09691.30750.46814.74
1012.981127.121264.461405.181523.181658.301782.18
1,6001,8002,0002,2502,5002,7503,0003,2503,5003,7504,0004,2504,5005,0005,5006,0006,5007,0007,5008,0008,5009,0009,500
10,00010,50011,00011,00012,00013,00014,00015,00014,00015,00016,00018,00020,00022,00024,00026,00028,00030,000
109
112
115
118
120
122
125
130
Coil Face Area
Qty) FH x FL65.6/63.565.5/63.566.4/64.165.0/62.965.8/63.663.9/61.964.7/62.567.5/65.266.7/64.566.4/64.366.9/64.766.7/64.567.1/64.866.6/64.466.5/64.366.1/63.965.8/63.765.9/63.765.7/63.565.7/63.565.7/63.565.1/62.965.0/62.864.8/62.664.6/62.564.5/62.464.5/62.464.2/62.064.2/62.063.9/61.864.0/61.966.6/64.366.4/64.166.1/63.964.4/62.364.4/62.264.0/61.963.0/61.563.7/61.563.4/61.363.4/61.3
0.310.340.360.390.430.470.490.350.360.380.400.420.350.370.390.430.350.370.380.400.430.340.350.360.370.380.340.360.370.390.420.330.350.360.390.430.360.380.400.430.46
Four Row CW Coil Data
ModelNo.
SCFM
FaceVelocity(FPM)
(1) Nominal cooling capacity based on 4 row/8 FPI CW coil with 45°EWT, 55° LWT, and 95°/77° entering air temperature.(2) Cabinet Loss includes loss for centrifugal blower plenum effect and diffuser(s). This factor must be added to all units.(3) Calculating Cooling Coil Section Pressure Drop:
A. Cabinet Loss ___’’ W.C.
B. Coil Air P.D. ___’’ W.C.
C. Downturn Plenum (if applicable) 0.10’’ W.C.
Cooling Coil Section Pressure Drop ___’’ W.C.
Refer to Blower HP Charts for Total External Static pressure available.
0.390.380.450.370.450.370.430.460.410.380.420.400.420.420.410.410.400.410.410.410.410.460.450.460.450.450.450.440.450.450.450.450.450.450.460.460.460.460.460.470.46
Air P.D. (3)Total MBH (1) LAT
4 Row CW
Performance Table
CabinetLoss(2) (3) GPM FPD (ft)
3.283.203.574.234.767.117.721.251.611.551.671.611.441.881.982.502.612.623.093.073.066.586.317.177.087.887.889.94
10.2212.4012.522.172.573.023.823.495.066.346.367.597.62
16.718.820.024.326.031.533.030.034.037.038.541.543.049.054.461.067.072.078.083.088.098.0
103.0110.0117.0123.0123.0137.0148.0162.0173.0138.0150.0162.0202.0226.0252.0280.0304.0330.0356.0
37
9,0009,500
10,00010,50011,00011,50012,00012,50013,00014,00015,00016,00017,00018,00019,00020,00021,00022,00023,00024,00025,00026,00025,00026,00027,00028,00029,00030,00031,00030,00032,00034,00036,00038,00040,00042,00044,00046,00044,00048,00050,000
215
218
220
222
225
230
1) 42 x 621) 42 x 651) 42 x 681) 42 x 721) 42 x 761) 42 x 791) 42 x 801) 45 x 801) 45 x 831) 45 x 901) 48 x 901) 51 x 931) 51 x 932) 30 x 862) 30 x 912) 30 x 962) 30 x 1012) 30 x 1062) 30 x 1112) 30 x 1162) 30 x 1202) 30 x 1252) 30 x 1202) 30 x 1252) 30 x 1302) 30 x 1352) 30 x 1412) 31½ x 1392) 31½ x 1412) 39 x 1112) 39 x 1182) 39 x 1252) 39 x 1332) 39 x 1402) 39 x 1472) 39 x 1552) 42 x 1512) 42 x 1582) 42 x 1512) 42 x 1662) 42 x 166
481.50514.30490.19525.33560.49590.73611.02644.41675.48742.98794.23865.12895.44869.42933.28
1000.621064.861132.421200.041264.741324.701395.501324.701395.501457.681549.501621.161675.101718.741559.201685.381815.881956.822107.462236.582377.042482.122614.642482.122753.882813.78
492501504500496499514500501498500486516502501500499498497497500499500499498498494493503499501502500501502500500499500496516
Coil Face Area
Qty) FH x FL65.3/63.165.1/62.966.8/64.466.4/64.166.1/63.966.0/63.766.2/63.965.9/63.765.8/63.665.5/63.265.5/63.365.1/62.965.6/63.467.0/64.766.7/64.466.4/64.166.2/63.966.0/63.765.7/63.565.6/63.365.5/63.365.3/63.065.5/63.365.3/63.065.2/63.064.7/62.564.5/62.464.5/62.464.7/62.565.8/63.665.6/63.365.4/63.165.0/62.864.7/62.564.5/62.464.3/62.164.4/62.264.2/62.164.4/62.264.0/61.964.5/62.2
0.350.360.370.380.390.410.430.340.350.360.380.400.430.340.350.360.370.380.390.410.430.440.360.370.380.390.410.420.440.350.360.370.380.410.430.450.470.480.360.380.39
Four Row CW Coil Data
ModelNo.
SCFM
FaceVelocity(FPM)
(1) Nominal cooling capacity based on 4 row/8 FPI CW coil with 45° EWT, 55° LWT, and 95°/77° entering air temperature.(2) Cabinet Loss includes loss for centrifugal blower plenum effect and diffuser(s). This factor must be added to all units.(3) Calculating Cooling Coil Section Pressure Drop:
A. Cabinet Loss ___’’ W.C.
B. Coil Air P.D. ___’’ W.C.
C. Downturn Plenum (if applicable) 0.10’’ W.C.
Cooling Coil Section Pressure Drop ___’’ W.C.
Refer to Blower HP Charts for Total External Static pressure available.
0.450.460.460.450.450.450.480.450.460.450.450.430.480.460.460.450.450.450.450.450.450.450.450.450.450.450.450.440.460.450.460.460.450.460.460.460.450.450.450.450.48
Air P.D. (3)Total MBH (1) LAT
4 Row CW
Performance Table
CabinetLoss(2) (3) FPD (ft)GPM
96.0103.098.0
105.0112.0118.0122.0129.0135.0148.0158.0173.0178.0174.0186.0200.0212.0226.0240.0252.0264.0280.0264.0280.0290.0310.0324.0336.0342.0310.0336.0362.0390.0420.0446.0476.0498.0499.0498.0550.0562.0
5.436.272.222.572.943.283.493.413.764.584.584.905.161.822.102.442.953.163.593.993.674.983.674.985.396.186.836.634.533.554.214.935.796.777.718.888.339.338.33
10.4210.83
38
457450500444494444485481467450480464474476472471464467471471471503494504494496496492494494498494500499497500500500500502499
1) 21 x 241) 24 x 241) 24 x 241) 27 x 271) 27 x 271) 27 x 331) 27 x 331) 27 x 361) 27 x 401) 30 x 401) 30 x 401) 33 x 401) 36 x 381) 36 x 421) 39 x 431) 39 x 471) 42 x 481) 45 x 481) 45 x 511) 48 x 511) 51 x 511) 39 x 661) 42 x 661) 42 x 681) 45 x 681) 45 x 711) 45 x 711) 45 x 781) 48 x 791) 48 x 851) 51 x 852) 30 x 682) 30 x 722) 30 x 772) 33 x 792) 36 x 802) 36 x 882) 36 x 962) 39 x 962) 39 x 1032) 42 x 103
95.27107.95115.38140.26150.02180.59191.14212.50235.74255.30267.48286.55299.17338.18374.89415.61454.29487.50528.11568.41601.36603.74642.20675.44713.59751.54751.54842.59913.52993.95
1062.76951.70
1023.921105.241331.981480.841564.461821.121876.342036.222297.58
1,6001,8002,0002,2502,5002,7503,0003,2503,5003,7504,0004,2504,5005,0005,5006,0006,5007,0007,5008,0008,5009,0009,500
10,00010,50011,00011,00012,00013,00014,00015,00014,00015,00016,00018,00020,00022,00024,00026,00028,00030,000
109
112
115
118
120
122
125
130
Coil Face Area
Qty) FH x FL62.1/61.261.9/61.162.8/61.861.2/60.362.0/61.160.0/59.260.8/59.960.2/59.359.5/58.759.2/58.459.7/58.859.5/58.659.8/59.059.4/58.659.2/58.458.8/58.058.6/57.858.7/57.958.4/57.658.2/57.458.3/57.559.6/58.859.5/58.659.5/58.659.3/58.559.2/58.359.2/58.358.5/57.758.5/57.758.3/57.458.3/57.559.3/58.559.2/58.458.9/58.157.2/56.457.2/56.458.2/57.456.5/55.757.9/57.057.7/56.856.3/55.5
0.310.340.360.390.430.470.490.350.360.380.400.420.350.370.390.430.350.370.380.400.430.340.350.360.370.380.340.360.370.390.420.330.350.360.390.430.360.380.400.430.46
Six Row CW Coil Data
ModelNo.
SCFM
FaceVelocity(FPM)
(1) Nominal cooling capacity based on 6 row/8 FPI CW coil with 45°EWT, 55° LWT, and 95°/77° entering air temperature.(2) Cabinet Loss includes loss for centrifugal blower plenum effect and diffuser(s). This factor must be added to all units.(3) Calculating Cooling Coil Section Pressure Drop:
A. Cabinet Loss ___’’ W.C.
B. Coil Air P.D. ___’’ W.C.
C. Downturn Plenum (if applicable) 0.10’’ W.C.
Cooling Coil Section Pressure Drop ___’’ W.C.
Refer to Blower HP Charts for Total External Static pressure available.
0.590.570.680.560.670.560.650.640.610.570.640.600.620.630.620.620.600.610.620.620.620.690.670.690.670.670.670.660.670.670.680.670.680.680.690.700.680.700.680.690.69
Air P.D. (3)Total MBH (1) LAT
6 Row CW
Performance Table
CabinetLoss(2) (3) GPM FPD (ft)
1.000.991.111.311.482.172.393.013.713.563.873.663.374.304.545.625.845.796.827.046.924.594.525.034.935.465.466.967.198.648.754.903.796.708.018.359.58
13.1212.0614.4415.66
19.021.626.028.030.036.068.042.647.051.053.557.060.067.575.083.091.097.0
105.0114.0120.0120.0128.0135.0143.0150.0150.0168.0182.0198.0212.0190.0204.0220.0266.0296.0312.0364.0376.0408.0460.0
39
9,0009,500
10,00010,50011,00011,50012,00012,50013,00014,00015,00016,00017,00018,00019,00020,00021,00022,00023,00024,00025,00026,00025,00026,00027,00028,00029,00030,00031,00030,00032,00034,00036,00038,00040,00042,00044,00046,00044,00048,00050,000
215
218
220
222
225
230
1) 42 x 621) 42 x 651) 42 x 681) 42 x 721) 42 x 761) 42 x 791) 42 x 801) 45 x 801) 45 x 831) 45 x 901) 48 x 901) 51 x 931) 51 x 932) 30 x 862) 30 x 912) 30 x 962) 30 x 1012) 30 x 106
598.85637.10675.44718.19760.42801.86837.96879.17916.59
1002.101073.221155.221207.031276.261357.801442.081526.441605.04
498501504500496499514500501498500486516502501500499498
Coil Face Area
Qty) FH x FL59.8/58.959.6/58.859.5/58.659.2/58.358.9/58.158.7/57.958.7/57.858.5/57.758.5/57.658.1/57.258.1/57.257.8/57.058.3/57.458.3/57.558.1/57.357.9/57.057.7/56.857.6/56.7
0.350.360.370.380.390.410.430.340.350.360.380.400.430.340.350.360.370.380.390.410.430.440.360.370.380.390.410.420.440.350.360.370.380.410.430.450.470.480.360.380.39
Six Row CW Coil Data
ModelNo.
SCFM
FaceVelocity(FPM)
(1) Nominal cooling capacity based on 6 row/8 FPI CW coil with 45° EWT, 55° LWT, and 95°/77° entering air temperature.(2) Cabinet Loss includes loss for centrifugal blower plenum effect and diffuser(s). This factor must be added to all units.(3) Calculating Cooling Coil Section Pressure Drop:
A. Cabinet Loss ___’’ W.C.
B. Coil Air P.D. ___’’ W.C.
C. Downturn Plenum (if applicable) 0.10’’ W.C.
Cooling Coil Section Pressure Drop ___’’ W.C.
Refer to Blower HP Charts for Total External Static pressure available.
0.680.690.690.680.670.680.720.680.690.680.680.650.720.690.690.680.680.68
Air P.D. (3)Total MBH (1) LAT
6 Row CW
Performance Table
CabinetLoss(2) (3) FPD (ft)GPM
119.0127.0135.0144.0152.0160.0168.0175.0183.0200.0215.0230.0240.0256.0270.0288.0306.0322.0
3.874.435.035.786.517.257.957.568.33
10.1210.2710.5611.389.22
10.4011.9713.6715.33
CF
CF
CF
CF
40
Control Systems
MDT Control System C000635
NET +
NET -
SHIELD
SENSE+12VRNCT+RNCT-GND
GNDRNET+RNET-+12V
TE
NR
0
98
765
4
3 2 1
LOCAL ACCESS
GND
INPUTS 1&205V,THERM OR DRY
INPUTS 3 & 4THERM OR DRY
GND
IN-5
IN-6
LED
INPUTS 5 & 6THERM DRY or LStat
CLASS 224 Vac. 50/60 CYCLE2Ova, 0.83AUSE COPPERCONDUCTORS ONLY.
CAUTION:To Reduce The Risk of Fire or or Electrical Shock, Do NotInterconnect Outputs of Different Class 2 Circuits
I/O ZONE 583
BT485Rx
Tx
+-
Batt
CR2032
Communications Selection
sneT
senO
mmo
C
Gnd
Hot
Format
LStat Rnet
Short PinsL StatIN-5 24 V ac
Power
Run
Error
IN-7
+3V
Gnd
IN-8
Pot.Only
Thermistor/Dry Contact0-5 vdc
On4321
EIA-485
BACnetover ARC 156
Comm SelectorDIP Switch
BAUD Rates SW1 SW2 PROTOCOLS SW1 SW2950019.2 K38.4K76.8 K
OFFOffOnOn
OffOnOffOn
BACnetMS/TPN2Modbus
Off
OnOff
Off
OffOn
Gnd
A0-3
Gnd
A0-2
A0-1
Gnd
DO-2
DO-1BUSPower for D.O.s
0-10vdc5ma Max.
BACnet
FormatJumper
LStat / Rnet PortSelector Jumper
Gain 1Jumper
CommunicationSelection Jumper
DO-3
DO-4
DO-5
GND
IN-4
IN-2
IN-3
IN-1
GND +
-
+
-
+
-
}
AO:
GND
0
98
7653 2 1
4
54
12
3
6
Discharge TemperatureSET Here
1. Unit DDC Controller2. Signal Conditioner
3. Modulating Gas Valve4. Inlet Air Sensor
5. Discharge Air Sensor6. Remote Control Station
COMPONENT I.D.
Application: Includes:
Modulating Discharge Discharge air sensor mounted in unit discharge with remote mounted 4 x 4 box cover including manual potentiometer toTemperature Control enable unit and adjust temperature setpoint, Fan On Light, Burner On Light, and Cool On Light. Additional potentiometer is
provided if optional return damper section for manual or mixed air control is ordered.
41
Control Systems
MRT Control System C000634
I /O ZONE 583
}
54
12
6
3
7
1. Unit DDC Controller2. Signal Conditioner
3. Modulating Gas Valve4. Inlet Air Sensor
5. Discharge Air Sensor6. Room Thermostat
7. Remote Control StationCOMPONENT I.D.
Space TemperatureSET Here
Space TemperatureSENSED Here
Application: Includes:
Modulating Room Discharge air sensor mounted in unit discharge with remote mounted 4 x 4 box cover including manual potentiometer toTemperature Control enable unit and adjust temperature setpoint, Fan On Light, Burner On Light, and Cool On Light. Also includes RS-std room sensor
(does not allow remote room setpoint adjustment). Additional potentiometer is provided if optional return damper section for manual or mixed air control is ordered.
42
Control Systems
MDT Expert Control Systems C000760
Application: Includes:
Modulating Discharge Temperature Control with Discharge air sensor mounted in unit discharge with remote mounted BACView controller to set discharge temperatureBACView controller allowing after hours unit setpoint and operating schedules. Service information, operating feedback, and alarm status can also be monitored.enable, operating feedback, and monitoring ofalarm status.
43
Control Systems
MRT Expert Control System C000632
NET +
NET -
SHIELD
SENSE+12VRNCT+RNCT-GND
GNDRNET+RNET-+12V
TE
NR
0
98
765
4
3 2 1
LOCAL ACCESS
GND
INPUTS 1&205V,THERM OR DRY
INPUTS 3 & 4THERM OR DRY
GND
IN-5
IN-6
LED
INPUTS 5 & 6THERM DRY or LStat
CLASS 224 Vac. 50/60 CYCLE2Ova, 0.83AUSE COPPERCONDUCTORS ONLY.
CAUTION:To Reduce The Risk of Fire or or Electrical Shock, Do NotInterconnect Outputs of Different Class 2 Circuits
I/O ZONE 583
BT485Rx
Tx
+-
Batt
CR2032
Communications Selection
sneT
senO
mm o
C
Gnd
Hot
Format
LStat Rnet
Short PinsL StatIN-5 24 V ac
Power
Run
Error
IN-7
+3V
Gnd
IN-8
Pot.Only
Thermistor/Dry Contact0-5 vdc
On4321
EIA-485
BACnetover ARC 156
Comm SelectorDIP Switch
BAUD Rates SW1 SW2 PROTOCOLS SW1 SW2950019.2 K38.4K76.8 K
OFFOffOnOn
OffOnOffOn
BACnetMS/TPN2Modbus
Off
OnOff
Off
OffOn
Gnd
A0-3
Gnd
A0-2
A0-1
Gnd
DO-2
DO-1BUSPower for D.O.s
0-10vdc5ma Max.
BACnet
FormatJumper
LStat / Rnet PortSelector Jumper
Gain 1Jumper
CommunicationSelection Jumper
DO-3
DO-4
DO-5
GND
IN-4
IN-2
IN-3
IN-1
GND +
-
+
-
+
-
}
AO:
GND
0
98
7653 2 1
4
1. Unit DDC Controller2. Signal Conditioner
3. Modulating Gas Valve4. Inlet Air Sensor
5. Discharge Air Sensor6. Room Thermostat
7. BACView
COMPONENT I.D.
54
12
6
3
7
Space TemperatureSET Here
Space TemperatureSENSED Here
Application: Includes:
Modulating Room Temperature Control Discharge air sensor mounted in unit discharge with remote mounted BACView controller to set space temp, operatingwith BACView controller allowing after hours unit schedules, and optional damper control setpoints. Service information, operating feedback and alarm staus can also be enable, room setpoint adjustment, operating monitored. Also includes a RS-std room sensor . feedback, monitoring of alarm status and digital temperature readout with RS-std room sensor.
44
Control Systems
MDT Touch Control System C000775
Application:
Modulating Discharge Temperature Control with Equipment Touch Touchscreen controller allowing after hours unit enable, discharge setpoint adjustment, operating feedback, monitoring of alarm status and digital temperature readout.
Includes:
Discharge air sensor mounted in unit discharge with remote mounted Equipment Touch Touchscreen controller to set discharge temp, operating schedules, and optional damper control setpoints. Service information, operating feedback and alarm status can also be monitored.
45
Control Systems
MRT Touch Control System C000774
Application:
Modulating Room Temperature Control with Equipment Touch Touchscreen controller allowing after hours unit enable, room setpoint adjustment, operating feedback, monitoring of alarm status and digital temperature readout with ZS-Standard room sensor.
Includes:
Discharge air sensor mounted in unit discharge with remote mounted Equipment Touch Touchscreen controller to set space temp, operating schedules, and optional damper control setpoints. Service information, operating feedback and alarm status can also be monitored. Also includes a ZS-Standard room sensor .
46
Control Systems
System 14 C000779
Application: Includes:
Non-DDC Modulating Discharge Temperature Control System 14 Amplifier compares signals from Discharge Air Sensor mounted in unit discharge and Remote Temperature Selector mounted in space. Modulating Gas Valve receives signal from amplifier and adjusts gas pressure to maintain constant discharge air temperature.
47
Control Systems
System 44 C000780
Application: Includes:
Non-DDC Modulating Room Temperature Control System 44 Amplifier compares signals from Discharge Air Sensor mounted in unit discharge and Remote Room Thermostat mounted in space and sends signal to Modulating Gas Valve to adjust gas pressure for desired space temperature while maintaining preset minimum and maximum discharge air temperature settings.
48
AmpsAMPS for 208V 3 Ph.AMPS for 230V 3 Ph.AMPS for 460V 3 Ph.AMPS for 575V 3 Ph.
AmpsAMPS for 208V 3 Ph.AMPS for 230V 3 Ph.AMPS for 460V 3 Ph.AMPS for 575V 3 Ph.
AmpsAMPS for 208V 3 Ph.AMPS for 230V 3 Ph.AMPS for 460V 3 Ph.AMPS for 575V 3 Ph.
Electrical Data and Sequence of Operation
Sequence of Operation – Return Air Units
Signal from remote control I to AirTrak Controller D, sets operational parameters for dampers B and C, and burner. Damper operation can be manual, building pres-sure or mixed air temperature.
Return air dampers B, and outside air dampers C, are interlocked to move together. As one opens, the other closes. As the return air dampers open, allowing more return air to enter the unit, the out-side air dampers move toward the closed position, decreasing the amount of outside air. Pressure sensor and flow station J, senses change in return airflow and signals AirTrak Controller D.
Modulating gas valve H, regulates gas supply in response to signal from AirTrak Controller D. AirTrak Controller D, varies signal based on input from room tem-perature sensor F, discharge temperature sensor G, and airflow sensor J. Gas valve H can provide approximately 4% to 100% of rated burner capacity.
P000621
14.64.22.11.7
2059.454.027.022.0
ITEM
A
B
310.69.64.83.9
40114.0104.052.041.0
516.715.37.66.1
50143.0130.065.052.0
MOTOR HORSEPOWER
Amp Draw Table
Steps to size optional disconnect switch:1. Find the blower motor HP required from tables on pages 4 and 5.2. Find amp draw for required motor HP from chart in item A above.3. Find amps for control circuit from chart in item B above.4. Add amps from step 2 and step 3, then multiply by 1.25.
BlowerMotor
ControlTransformer
1030.828.814.411.5
75211.0192.096.077.0
71/2
24.222.011.09.0
60169.0154.077.062.0
1546.242.021.017.0
100273.0248.0124.099.0
11/2
6.66.03.02.4
2574.868.034.027.0
27.56.83.42.7
3088.080.040.032.0
SOURCE
MOTOR HORSEPOWER
CONTROL CIRCUIT AMPSHeating Unit Only
2.42.21.10.9
Heating Unit w/One Evap. Module7.26.53.32.6
Heating Unit w/Two Evap. Module9.68.74.33.5
Heating Unit w/Three Evap. Module12.010.95.44.3
NOTES: 1) Above motor amps are based on 2011 edition of NEC. 2) Control circuit amps are based on standard controls.
49
Gas Piping Layout
Schematic Component Diagrams
COMPONENT IDENTIFICATION GP-01 HIGH GAS PRESSURE REGULATORGP-02 MAIN GAS SHUT-OFF VALVEGP-09 PILOT GAS PRESSURE REGULATORGP-11 MAIN TEST FIRING SHUT-OFF VALVE GP-13 PILOT GAS SHUT-OFF VALVE GP-27 ORIFICED NEEDLE VALVE VG-01 PILOT GAS VALVEVG-02 MAIN GAS VALVE VG-03 AUXILIARY GAS VALVEVG-04 NORMALLY OPEN VENT VALVE VG-07 MODULATING VALVEPS-04 LOW GAS PRESSURE SWITCHPS-07 HIGH GAS PRESSURE SWITCHPS-10 HIGH VELOCITY PRESSURE SWITCHPS-11 LOW VELOCITY PRESSURE SWITCH
NOTES:1. Vent limiting devices provided wherever possible, when venting is required* the venting to outside is by others on indoor units and furnished by factory on outdoor units.
2. Units with 900 MBH and less use a pressure regulator (not shown) for high fire setting.
3. For inlet pressures under 10‘‘ W.C. – Please contact factory.
4. 3,300 MBH and above will require a minimum inlet pressure of 1 PSIG. For inlet pressures under 1 PSIG – Please contact factory.
5. Units that are listed to Z83.4 standard (100% make-up air) carry both ETL and CETL approvals.
6. The standard manifold meets FM requirements for inputs under 2,500 MBH for ETL listed units.
7. The standard manifold meets IRI requirements for ETL listed units.
8. High gas pressure regulator required if inlet pressure exceeds 1/2 PSIG for inputs up to and including 900 MBH or inlet pressures over 5 PSIG for inputs greater than 900 MBH.
C000148
50
MODEL
Basic Frame
Inlet Hood(No Filters)
InletDamper
V-BankFilter
MixingBox
TotalUnit
Weight
Corner Weights
A B C D E F G H109 760 215 215 185 145 – – – – 170 75 105 480112 760 215 215 185 145 – – – – 170 75 105 480115 760 215 215 185 145 – – – – 170 75 105 480118 810 225 225 200 160 – – – – 170 75 105 480120 1185 331 331 272 251 – – – – 270 125 175 700122 1227 344 344 282 257 – – – – 270 125 175 700125 1824 510 510 420 384 – – – – 290 140 240 950130 1920 538 538 442 402 – – – – 290 140 240 950215 1180 342 342 274 222 – – – – 275 135 175 700218 1300 378 378 311 233 – – – – 275 135 175 700220 2280 625 625 555 475 – – – – 320 200 230 980222 2370 675 675 545 475 – – – – 320 200 230 980225 2990 824 824 732 610 – – – – 500 275 340 1270230 3130 863 863 731 673 – – – – 720 275 340 1270233 6393 517 1139 936 421 382 973 490 1535 775 350 550 2200240 8675 557 1625 1361 451 413 1395 529 2344 1050 500 675 2750
MODELAir FlowStation
DischargeDamper
DischargeLouver
CoolingCoil
Section
Add ForVerticalUnits
Roof Curb12” High 18” High
BasicFrame
Basic Frame w/Mixing
Box
Basic Frame w/Cooling Coil Box
Basic Frame w/Mixing Box &
Cooling Coil BoxBasicFrame
Basic Frame w/Mixing Box
Basic Frame w/Cooling Coil Box
Basic Frame w/Mixing Box &
Cooling Coil Box109 47 30 70 1010 224 160 230 300 380 215 315 416 530112 47 30 70 1010 224 160 230 300 380 215 315 416 530115 47 30 70 1500 224 160 230 360 440 215 315 500 615118 47 30 70 1500 224 160 230 360 440 215 315 500 615120 68 55 85 2580 475 215 300 460 550 300 410 640 765122 68 55 85 2580 475 215 300 460 550 300 410 640 765125 80 85 140 4180 590 235 320 535 630 320 440 745 890130 80 85 140 4180 590 235 320 535 630 320 440 745 890215 80 100 150 2420 427 215 285 425 505 295 395 590 700218 80 100 150 2420 427 215 285 425 505 295 395 590 700220 111 145 215 3405 899 285 365 545 635 395 505 755 880222 111 145 215 3405 899 285 365 545 635 395 505 755 880225 135 210 230 5420 1145 320 405 630 730 440 560 875 1010230 135 210 230 5420 1145 320 405 630 730 440 560 875 1010233 190 230 300 NA 1100 375 470 NA NA 515 645 NA NA240 221 250 350 NA 1300 450 535 NA NA 605 735 NA NA
Unit Weights (Approximate)
Weights
APPROXIMATE WEIGHT (LBS.)
C000473
Note: Cooling coil section weights include 6 row dry coil.
Note: See pages 24-27 for weights of 4 (F, R) and 8 (F, R) discharge options.
51
Horizontal Discharge
HLT HLBHLS
HRSHRT HRB
Vertical Discharge
VRTVSTVLT
For all arrangements shown, controls are on near side.
Cabinet Arrangements
52
Guide Specification – Base Unit
Base Bid Sterling model SDFW _____ make-up air unit(s) designed for outdoor application. The unit discharge shall be designed for easy adaptation to external duct work or optional accessories. The unit(s) shall be capable of delivering ___ cfm at ___ ESP using a ___ horsepower (ODP) (TEFC) motor operating on (208/3/60) (230/3/60) (460/3/60).
BURNER SECTIONThe line burner shall be capable of delivering ___BTUH firing on (natural gas) (propane) at an inlet pressure of ___ (inches water column) (PSIG). The standard ETL listed unit will meet ANSI, FM, and IRI requirements. Both burner and blower shall be compensated for an altitude of ___ feet above sea level. Manifold to be located outside of air stream and shielded from atmospheric conditions by means of a protective compartment with hinged access. An observation port shall be located to provide view of pilot and main flame.
Unit(s) shall be supplied with a wide range burner with a modulating turndown ratio of up to 25:1. Adjustable profile plates shall be provided and sized to maintain the require velocity across the line burner. The operation of the burner shall be programmed through the flame safeguard with timed prepurge and flame-sensed by means of an ultra violet scanner.
The burner assembly and gas manifold shall be completely prepiped and factory tested prior to shipment.
The unit shall be controlled by: (One of Three options, Choose one)
Option 1AirTrak DDC control module with full BACnet compatibility. Unit shall have the AirTrak (pick one):
1. MDT Modulating Discharge Temperature Control System.
2. MRT Modulating Room Temperature Control System.
3. MDT-Expert Modulating Discharge Temperature Control System.
4. MRT-Expert Modulating Room Temperature Control System.
5. MDT-Touch Modulating Discharge Temperature Control System.
6. MRT-Touch Modulating Room Temperature Control System.
The AirTrak DDC control system shall include but not be limited to the following controls required for standard operation:
• Electronic time clock with normal, holiday, and override schedules. (Optional accessory on MDT or MRT Control Systems).
• Timed freeze protection to prevent heater from discharging unheated air into the building.
• Inlet On-Off sensor which will turn burner off when inlet temperature equals desired discharge air temperature as fuel savings mode.
• On-Off night setback thermostat for lower operating temperatures in unoccupied mode as fuel savings mode. (Optional accessory on MDT or MRT Control Systems).
Option 2 System 14 Discharge Temperature Control. The System 14 control system shall include but not be limited to the following controls required for standard operation:
• Amplifier mounted in electrical control panel with sensitivity adjustments and one (1) calibrating potentiometer.
• Remote temperature selector mounted on optional Remote Control Panel and can be installed in any convenient location for remote adjustment of leaving air temperature between 55° to 90°F.
• Timed freeze protection to prevent heater from discharging unheated air into the building.
• Modulator/Regulator valve mounted in gas piping manifold that receives electrical signal from amplifier and adjusts gas pressure to maintain desired leaving air temperature.
Option 3 System 44 Room Temperature Control. The System 44 control system shall include but not be limited to the following controls required for standard operation:
• Amplifier mounted in electrical control panel contains adjustments for maximum and minimum discharge air temperature, three (3) calibrating potentiometers and a sensitivity adjustment.
• Remote temperature Selectrastat mounted on optional Remote Control Panel and installed in heated area for adjustment of room temperature between 55° to 90°F.
• Timed freeze protection to prevent heater from discharging unheated air into the building.
• Modulator/Regulator valve mounted in gas piping manifold that receives electrical signal from amplifier and adjusts gas pressure to maintain desired room air temperature.
UNIT CASINGUnit casing and accessories shall be fabricated from heavy-gauge bright spangled galvanized steel suitably reinforced to insure rigidity. The base of the unit shall be adaptable for curb mounting. All casings shall be airtight and weatherproof. Roof panels shall be convex to prevent ponding, and designed with a standing seam to prevent water entrainment. Cabinet shall be designed with roof eaves to prevent water for getting into wall panels. Complete access shall be provided to all components though gasketed, hinged access doors. This includes the motor, blower, burner, and electrical components and manifold sections.
53
BLOWER SECTIONEach unit shall be supplied with centrifugal forward curve, DWDI fan(s) rated in accordance with AMCA standards. The fan or fans shall be mounted on a heavy-duty polished steel shaft designed for a maximum operating speed not to exceed 75% of its first critical speed. Bearings are to be heavy-duty industrial prelubricated type. Blowers to be driven by a V-belt package sized with a capacity of 25% greater than the motor horsepower. Multiple belt applications will be matched sets. Drives are to be (fixed) (adjustable). Maximum outlet velocity _____ FPM. Motor to be mounted on adjustable slide base. Motor cover shall be provided for protection when control cabinet door is open.
CONTROL ENCLOSUREThe units(s) shall be supplied with a control compartment and all controls mounted within this compartment are to be wired to a numbered terminal strip. All wiring is to be color coded and in accordance with the NEC. A circuit diagram is to be laminated to the inside of the control Cabinet door. All electrical components shall bear a recognized label.
CONTROLS1. Main fan starters and overloads2. Control circuit fuses3. High temperature limit switch4. Flame safeguard with alarm contacts5. UV flame detection6. Ignition transformer7. Automatic pilot valve8. Main gas automatic safety shutoff valve9. Air proving differential switch10. Control transformer
OPTIONAL EQUIPMENT1. V-Bank filter box with 2” filters2. Inlet hood and birdscreen with or without filters3. Insulation4. Full perimeter roof curb (horizontal units only)5. Vibration feet6. Clogged filter indication7. Disconnect switch8. High gas pressure regulator (required for inlet
pressure over 1/2 PSIG)9. Vertical arrangement with support stand and
birdscreen10. Mixing dampers with or without return air flow
station11. Return air after the burner12. Evaporative cooling module(s) with transitions13. CW or DX cooling coil section (up to 50,000
CFM)14. Internal blower/motor isolation 15. Firestat16. 115 Volt service receptacle17. BACview controller or Touchscreen (for DDC
Control systems only)18. FM or IRI controls19. Fixed or revolving discharge20. Electronic time clock (Not available with Expert
or Touch DDC Control Systems)21. On-off night setback thermostat (Not available
with Expert or Touch DDC Control Systems)22. NEMA 1 or NEMA 12 remote control panel
(System 14 or System 44 controls only)23. VFD controller24. Exhaust interlock25. Interlocking relay
Guide Specification – Base Unit
54
Unit(s) shall have outside air and return air dampers with modulating actuator controlled by AirTrak DDC control system (Patent #7,059,536). The AirTrak DDC control system shall have capability to digitally control the outside air quantity from a nominal minimum of 20% to 100% with integrated gas valve control at all room concentrations of CO2.
The return air inlet shall include a self-calibrating flow measuring station with a grid of velocity pressure probes with spacing no greater than 12” over the entire face of the return air opening and sampled every second. Samples are averaged to provide smooth, accurate data that is delivered to the AirTrak DDC control system every second. The DDC control system shall be capable of electronically displaying the return air/outside air ratio within 5% accuracy at all damper positions.
The AirTrak DDC control system shall be capable of controlling mixing dampers in:(Choose One)MANUAL MODE:The “Manual” mode allows manual positioning of the outside air (O.A.) damper and return air (R.A.) damper by changing the damper position setpoint.
MIXED AIR TEMPERATURE MODE:The “Mixed Air Temperature” mode shall provide automatic control of the mixed air temperature by modulating the outside air (O.A.) damper and return air (R.A.) damper to maintain the mixed air temperature setpoint.
BUILDING PRESSURE MODE:The “Building Pressure” mode shall provide automatic building pressure control by modulating the outside air (O.A.) damper and return air (R.A.) damper to maintain the indoor building pressure setpoint. As the building pressure decreases below the setpoint more outside air will be introduced.
Guide Specification – Mixing Dampers with Return Flow Station
55
The display functions of the remote keyboard or touchscreen display for the AirTrak DDC control system shall include but not be limited to the following:
• Return air temperature
• Outside air temperature
• Discharge air temperature
• Mixed air temperature
• Maximum allowable temperature rise
• Actual temperature rise
• Current percent of outside air
• Current building pressure (optional)
• Current damper input voltage (optional)
• Current burner input voltage
• Fan operating hours since last reset
• Fan start cycle count since last reset
• Burner operating hours since last reset
• Burner start cycle count since last reset
• Cooling interlock operating hours since last reset
• Cooling interlock cycle count since last reset
• Critical alarm conditions: – Airflow switch failure – Unit on, fan off – Unit off, fan on – Low discharge temperature – Safety circuit open – Burner jumped
The control settings available on the remote keyboard or touchscreen display for the AirTrak DDC control system shall include but not be limited to the following:
• Heating setpoint
• Cooling setpoint
• Economizer setpoint
• Setback setpoint
• Freeze protection setpoint
• Maximum discharge air temperature setpoint
• Minimum discharge air temperature setpoint
• Minimum ventilation option and setpoint
• Time of day schedule selection and setpoints (Not available on MDT or MRT Control Systems)
– Normal 5/7 schedule – Holiday schedule – Manual override
Guide Specification – BACView or Touchscreen Controller
EfficientDirect FiredGas HeatingSystem
Choose Sterling Direct Fired Gas Heating• Heat large or small spaces with 100% combustion efficiency
• Constantly replace contaminated indoor air with fresh, heated outside air
• Optional evaporative cooling
• Low operating and maintenance costs
• Fresh air ventilation anytime — just turn off the gas heating system
• Simple, inexpensive installation
• Sterling, a leader in research, engineering, and customer service since 1946
• Fans tested to AMCA standards to insure rated airflow
Sterling
www.sterlinghvac.com
4830 Transport Drive Dallas TX 75247
Telephone 214.638.6010
Printed in U.S.A. © Copyright U.S.A. 2016
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