Matthews Main Post Office - Iron Horse...
Transcript of Matthews Main Post Office - Iron Horse...
Matthews Main Post Office
HVAC Installation and Repair Project
The following report includes: submittal documents, project summary, product sales info, efficiency data,
product catalog link, before and after pictures, and commissioning reports. The intent of this report is to
provide a brief synopsis of the project, along with important technical and operational information.
11/15/2011 Matthews, North Carolina
Matthews Main Post Office HVAC Installation and Repair Project
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Table of Contents:
Table of Contents: ........................................................................................................................... 2
Project Summary: ........................................................................................................................... 3
Site Photos: ...................................................................................................................................... 4
Before and After Photos: ................................................................................................................ 5
Efficiency Data with Catalog Link: ............................................................................................... 7
Commissioning Worksheet: ........................................................................................................... 8
Product Summary: ........................................................................................................................ 10
Submittal Data: ............................................................................................................................. 12
Corporate Office:
P.O. Box 73026
Richmond, VA 23235
(919) 682- 2200
(804) 323-4455
(804) 267-1893 fax
www.ironhorsemechanical.net
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Project Summary:
Two 7 ½-TON York Gas Pack Rooftop Units (RTU-1B and RTU-2B) were replaced
with Carrier 48HC High Efficiency Packaged Gas/Electric Rooftop Units. The new
units have following features and benefits:
Medium gas heat
High efficiency, 12.0 EER
Dual circuit
Downflow configuration
7 1/2 ton nominal cooling capacity
208-230v-3ph
Vertical economizer with barometric relief (factory installed)
Curb adapter (field installed)
Powered convenience outlet, GFCI (factory installed)
Additional product information is provided in the Product Summary and Submittal
Data sections of this report.
This project also provided for certain temporary and permanent repairs to RTU-
1A, RTU-1B, RTU-2A, RTU-2B, RTU-3, RTU-3B, RTU-4A, RTU-5, RTU-6A, RTU-7A,
and RTU-8. Further details of the installation and repair work are provided in the
work scope section of the JOC Contract and our project proposal.
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Site Photos:
Matthews Main Post Office
301 E. John St.
Matthews, NC 28105-7957
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Before Pictures:
Before Picture RTU 1B
York Gas Pack Rooftop Unit
Model #D4CG090N13025A
Serial #NNGM158971
Before Picture RTU 2B
York Gas Pack Rooftop Units
Model #D4CG090N13025A
Serial #NBHM015773
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After Pictures:
After Picture RTU 1B
Carrier Gas Pack Rooftop Units
Model #48HCED08A2A5A0B2A0
Serial #4411G50399
After Picture RTU 2B
Carrier Gas Pack Rooftop Units
Model #48HCED08A2A5A0B2A0
Serial #4411G50400
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Matthews Main Office Efficiency Data:
A product catalog is available using the following link: http://www.docs.hvacpartners.com/idc/groups/public/documents/techlit/48hc-08pd.pdf
N= New O= Old
QTY Serial Number Make & Model Number
Cooling
Capacity
Tons
Cooling
Capacity
MBH
Cooling
EER
Cooling
SEER/IEER
/IPLV
Heating
Input
MBH/
Stage 1
Heating
Input
MBH/
Stage 2
Heating
Output
MBH/
Stage 1
Heating
Output
MBH/
Stage 2
Heating
AFUE%
Heating
Steady State
Efficiency%
Ref. Age Economizer
(Yes/No)
N 1 4411G50399 Carrier 48HCED082A5-
0B2A0 7.5 89 12.00 13.00 120 180 98 148 N/A 82% R410A 2011 Yes
N 1 4411G50400 Carrier 48HCED082A5-
0B2A0 7.5 89 12.00 13.00 120 180 98 148 N/A 82% R410A 2011 Yes
O 1 NNGM158977 York D4CG090N13025A 7.5 R22 1998
O 1 NBHM015773 York D4CG090N13025A 7.5 R22 1998
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Commissioning Worksheets:
EQUIPMENT STARTUP CHECKLIST/COMMISSIONING REPORT
Job Name Matthews Main Office Date(s) of Installation November 15, 2011
Outside Temp and Weather Conditions 67°
Lead Technician: Jim Whinnie Additional Technician(s): Jerry Burden
PRE START-UP TASKS UNIT #
1 UNIT #
2
Make/Model # of new unit
Carrier 48HCED08A2A5A0B2A0 Carrier 48HCED08A2A5A0B2A0
Serial # of new unit
4411G50399 4411G50400
Before starting changeout, verify correct voltage and phase of new equip.
Voltage Phase 208/230 3
Voltage Phase 208/230 3
Verify Installation and Ops Manuals are present and being strictly followed.
Completed Completed
Check electrical conn. for tightness - ohm out high voltage wiring to verify insulation
Completed Completed
Check blower wheel tightness and alignment. Verify pulley alignment and belt tightness.
Completed Completed
Check unit for level.
Completed Completed
Verify the condensate lines is the correct size and installed per mfgr specs.
Completed Completed
Verhify the curb/curb adapter is sealed properly and water tight.
Completed Completed
Verify the unit is properly grounded and secured.
Completed Completed
Check that the unit has filters installed with no gaps between.
Completed Completed
START-UP TASKS UNIT # 1
UNIT # 2
Verify proper rotation Completed Completed
Supply voltage (L1-L2) 213 213
Supply voltage (L1-L3) 213 213
Supply voltage (L2-L3) 212 213
Actual compressor amps #1 L1: 10.9 L2: 11.1 L3:11.1 L1: 10.8 L2: 10.9 L3: 11.0
Actual compressor amps #2 L1: 10.8 L2: 10.9 L3:10.9 L1: 10.7 L2: 10.8 L3: 10.9
Compressor rated Amps #1 13.6 13.6
Compressor rated Amps #2 13.6 13.6
Actual fan amps Cond #1 1.1 1.0
Actual fan amps Cond #2 1.0 1.0
Rated fan amps Cond #1 1.5 1.9
Rated fan amps Cond #2 1.5 1.5
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START-UP TASKS (Cont.)
UNIT # 1
UNIT # 2
Actual fan amps Evap 4.0 5.2
Rated fan amps Evap 5.2 4.0
Pressures 1 Suct 1
140 Disch 1
270 Suct 1
139 Disch 1
268
Pressures 2 Suct 2
135 Disch 2
265 Suct 2
139 Disch 2
268
Temperatures Ret Air
72 Sup Air
50 Ret Air
72 Sup Air
50
Temp differential across coil (fully loaded) 22° 22°
Superheat 1 At Coil
16° At Compressor
17° At Coil
16° At Compressor
17°
Superheat 2 At Coil
17° At Compressor
19° At Coil
17° At Compressor
19°
T-Stat properly mounted and verified for proper and accurate operation? Completed Completed
Unit tested under full load conditions in heating and cooling modes? Completed Completed
Verify unit is balanced Completed
Completed
Label new unit and make ready for final inspection Completed Completed
Clean job site and remove all materials and debris Completed Completed
Turnover to Postmaster or OIC (manuals, training, etc.) Completed Completed
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Product Summary:
48HC WEATHERMASTER®
Single-Package Rooftop High Efficiency Gas Heating/Electric Cooling Units 3 to 25 Nominal Tons
48HC WEATHERMASTER® rooftop unit were designed by customers for customers. With a gauge plug, centralized control center, plug & play accessory board, "no-strip screw" collars, and handled access panels, we’ve made the unit easy to install, easy to maintain, and easy to use. Units are pre-wired and pre-charged with environmentally sound Puron® (R-410A) refrigerant at the factory. The units are factory tested in both heating and cooling modes.
Performance Features
Puron® (R-410A) HFC refrigerant
ASHRAE 90.1 and Energy Star compliant
Single-stage capacity control (sizes 04 to 07)
Two-stage cooling capacity control (sizes 08 to 28)
SEERs up to 15.6
EERs up to 12.2
IEERs up to 13.0
Exclusive non-corrosive composite condensate pan in accordance with ASHRAE 62 Standard, sloping design; side or center drain
Gas efficiencies up to 82%
Induced draft combustion
Single and multi-state heating
Pre-painted exterior panels and primer-coated interior panels tested to 500 hours salt spray protection
TXV refrigerant metering device on each circuit with removable power element
Fully insulated cabinet
Enhanced copper tube and aluminum fin designed condenser and evaporator coils. Special coated coils also available
Exclusive IGC solid-state control for on-board diagnostics with LED error code designation, burner control logic and energy saving indoor fan motor delay
Dedicated 3-5 ton "Low NOx" models available that meet California Air Quality Management NOx requirement of 40 nangram/joule or ess. Low NOx models include stainless steel heat exchangers.
Stanadrd cooling operating range up to 125 °F (52°C) and down to 35°F (-2°C). Low ambient controllers can bring cooling operation down to -20°F (-29°C)
Rated in accordance with ARI Standards 210/240 (sizes 04 to 06 ) and 340/360 (sizes 07 to 28)
Designed in accordance with Underwriters’ Laboratories Standard 1995
Listed by UL and UL, Canada, or ETL
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Maintenance Features
Access panels with easy grip handles
Innovative , easy starting, no-strip screw feature on unit access panels
Two-inch disposable return air filters
Tool-less filter access door
Optional hinged access panels also available
Belt drive evaporator-fan motor and pulley combinations available on all three phase models to meet any application
Electric Drive x13 (5 speed/torque) motor on 04 to 06 models
New terminal board facilitating simple safety circuit troubleshooting and simplified control box arrangement
Installation Features
Field convertible from vertical to horizontal airflow for slab mounting (sizes 04 to 14)
Provisions for thru-the-bottom power entry capability as standard
Single point gas and electric connections
Full perimeter base rail with built-in rigging adapters and fork truck slots
Dedicated vertical and horizontal airflow models available (factory option on size 17 to 28 units)
Reliability Features
Scroll compressors with internal line-break overload protection
24-volt control circuit protected with resettable circuit breaker
Permanently lubricated evaporator-fan motor
Totally enclosed condenser motors with permanently lubricated bearings
Low pressure and high-pressure switch protection
Exclusive IGC anti-cycle protection for gas heat operation
Solid-state electronic direct spark ignition system
Flame roll-out safety protector
Liquid line filter drier as standard
Standard Limited Warranty
10 years parts only heat exchanger - aluminized
15 years parts only heat exchanger - stainless steel
5 years parts only compressor
One year parts only on all other parts
Extended warranty packages available
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SUBMITTAL
Project
MATTHEWS MAIN OFFICE
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RTU-1 AND RTU-2 3 Unit Report 4 Certified Drawing 5 Performance Summary 7 Unit Feature Sheet 10
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RTU-1 AND RTU-2
Tag Cover Sheet Unit Report
Certified Drawing Performance Report
Unit Feature Sheet
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Part Number Description Quantity
48HCED08A2A5-0B2A0 Rooftop Unit 2
Base Unit Medium Static Option - Belt Drive Al/Cu - Al/Cu Powered Convenience Outlet Standard Packaging Electromechanical control, Temperature economizer with barometric
relief
Unit Parameters
Unit Model: 48HCED08A2A5-0B2A0 Unit Size: 08 (7.5 Tons) Volts-Phase-Hertz: 208-3-60 Heating Type: Gas
Duct Cfg: Vertical Supply / Vertical Return
Medium Heat Two stage cooling models
Dimensions (ft. in.) & Weight (lb.) ***
Unit Length: 7' 4.125''
Unit Width: 4' 11.5''
Unit Height: 4' 1.375'' *** Weights and Dimensions are approximate. Weight does not include roof
curbs, unit packaging, field installed accessories or factory installed options. Approximate dimensions are provided primarily for shipping purposes. For exact dimensions and weights, refer to appropriate product data catalog.
Total Operating Weight: 1065 lb
Unit Configuration
Medium Static Option - Belt Drive Al/Cu - Al/Cu Electro-mechanical controls Temperature Economizer w/ Barometric Relief Powered Convenience Outlet Standard Packaging
Warranty Information
1-Year parts 5-Year compressor parts 10-Year heat exchanger - Aluminized
No optional warranties were selected.
NOTE: Please see Warranty Catalog 500-089 for explanation of policies and ordering methods.
Ordering Information
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48HC-A01 41
48HC-008 49
48HC-009 49
111531 3?
15 1
1351
2 DIA KNOC"OOT
314 (511 DIA ESS
118 111I CIA
NSATE
12 "-14 "-14
" 1511
fOR ITH KlTS:
01 • CRBT ,0 - CRBT
01 - BWPAH CRBT 08,09 -
1 118"
1
11" 041 J /4"
118" 18. 314"
1001 & 002 PWVIDES 3/4 " FPT T RU FL/l.NGE SIZE: 2"
NOTES:
1. DIMEiSIOiS ARE IN INCHES, DIMENSIONS IN I 1 ARE IN 1LlliETERS
1 CEN1ER OF GRAVITY
3 . DJRECTJON OF A1R FLOW
UNIT j
' H
40-J/S --- ., 110151
ECOIIOillER HOOD
IO PTl ONAU
10-3/i 1527 I
.RETU
.RN
..
FILTER ACC ESS PIINEL !TOOL-LESSI
INDOOR COIL ACCESS PIINEL
..
CONDENSER COll
t
AIR
40+3/8 .. I1011]
SUPPL'f
AIR
_1
1 3/4 ' 144.4 1
THRU-THE-BASE CHART IFIOPl FOR "TH RU -THE-BAS EPAN" FACTOR!OPTIO N, FIHJNGS FOR ONL T I. Y. !1 AR E PROVIDED. "
FOR BELOLISTED MODELS, A FIELD SUPPLIED I 12" ADAPTER IS REQUIRED BETWEEN BA SE PAN FITT ING MD GAS VALVE: 46HCD, E, S, R-0 J 48HCD,S·08 48f+!:D,S - 09
'"
N TROL BOX
CONDENSER COI L
CO ACCESS PAiEL
OPTIONAL9 il INDOOR BLOWER
OPTIONAL FACTORY
I NSTALLED CONVENIENCE
OUTLET
J FACTCH!
INSTALLED DISCONNECT
ACCESS
F [_ fAHDLE
Ow
UTSIDE
3·314 r-
-..
HAN OLE---n IT 00 "L='J' I 'L='J' 00·
1-51B- L l -3/!!
(OSJ >-------- 5!·112 ------1 11510I
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IT
I
. LBS.
-A01 I6 318 34 61 19 718 I 5051
915 419 9 156 .1 41 518 11081] 34 1
915 10 190 9 34 1 /8
LBS . "·
* STAN DA R D U W mG HT 1S W ITH LOW GA S HE AT AND Wl!HOU T PACK AGI NG. FOR OTHER OPHONS AH D AC C ESSORI ES, R EFER TO TH E P ROD UCT DATA C WLOG
COR NE R A
COR NER D
CORNE R 8
COR NER C
·- . ..
CJ ••• 1 C.
= n = NEW 48HC 08-12 SINGLE ZONE ELECTRICAL L:::::::j L:::::::j 00·
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Part Number:48HCED08A2A5-0B2A0
ARI EER: 12.00 IEER: 13.0
Base Unit Dimensions
Unit Length: 88.1 in Unit Width: 59.5 in Unit Height: 49.4 in
Operating Weight
Base Unit Weight: 925 lb Medium Heat: 15 lb Medium Static Option - Belt Drive: 15 lb Temperature Economizer w/ Barometric Relief: 75 lb Powered Convenience Outlet: 35 lb
Total Operating Weight: 1065 lb
Unit Voltage-Phase-Hertz: 208-3-60 Air Discharge: Vertical Fan Drive Type: Belt
Actual Airflow: 3000 CFM Site Altitude: 0 ft
Cooling Performance
Condenser Entering Air DB: 95.0 F Evaporator Entering Air DB: 80.0 F Evaporator Entering Air WB: 67.0 F Entering Air Enthalpy: 31.44 BTU/lb Evaporator Leaving Air DB: 57.7 F Evaporator Leaving Air WB: 57.2 F Evaporator Leaving Air Enthalpy: 24.53 BTU/lb Gross Cooling Capacity: 93.30 MBH Gross Sensible Capacity: 72.19 MBH Compressor Power Input: 6.24 kW Coil Bypass Factor: 0.198
Heating Performance
Heating Airflow: 3000 CFM Entering Air Temp: 70.0 F Leaving Air Temp: 115.7 F Gas Input Capacity: 120.0 / 180.0 MBH Gas Heating Capacity: 148.00 MBH Temperature Rise: 45.7 F NOTE: Second Stage
Supply Fan
External Static Pressure: 0.50 in wg Options / Accessories Static Pressure
EconoMi$erIV / EconoMi$er2: 0.11 in wg Total External Static: 0.61 in wg Fan RPM: 759 Fan Power: 1.17 BHP NOTE: Selected IFM RPM Range: 690 - 936
Electrical Data
Minimum Voltage: 187 Maximum Voltage: 253
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Compressor #1 RLA: 13.6 Compressor #1 LRA: 83
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Compressor #2 RLA: 13.6 Compressor #2 LRA: 83 Outdoor Fan Motor Qty: 2 Outdoor Fan FLA (ea): 1.5 Indoor Fan Motor Type: MED Indoor Fan Motor FLA: 5.2 Combustion Fan Motor FLA (ea): 0.48 Power Supply MCA: 43.6 Power Supply MOCP (Fuse or HACR): 50 Min. Unit Disconnect FLA: 46 Min. Unit Disconnect LRA: 207 Electrical Convenience Outlet: Yes NOTE: Convenience outlet must be field connected to the line/load side of the unit disconnect per local code.
Acoustics
Sound Power Levels, db re 10E-12 Watts
Discharge Inlet Outdoor
63 Hz 96.6 93.8 90.6 125 Hz 90.7 84.0 84.3 250 Hz 75.1 67.8 80.2 500 Hz 68.9 63.9 79.3
1000 Hz 64.0 61.2 77.1 2000 Hz 62.1 56.3 72.2 4000 Hz 64.8 55.6 67.4 8000 Hz 65.1 55.0 63.7
A-Weighted 77.7 72.1 82.0
Advanced Acoustics
Detailed Acoustics Information
Advanced Accoustics Parameters
1. Unit height above ground: 30.0 ft 2. Horizontal distance from unit to receiver: 50.0 ft 3. Receiver height above ground: 5.7 ft 4. Height of obstruction: 0.0 ft 5. Horizontal distance from obstruction to receiver: 0.0 ft 6. Horizontal distance from unit to obstruction: 0.0 ft
Octave Band Center Frequency, Hz 63 125 250 500 1k 2k 4k 8k Overall
1. Sound Power Levels at Unit's Acoustic Center, Lw 90.6 84.3 80.2 79.3 77.1 72.2 67.4 63.7 92.3 Lw
2. A-Weighted Sound Power Levels at Unit's Acoustic Center, LwA 64.4 68.2 71.6 76.1 77.1 73.4 68.4 62.6 81.7 LwA
3. Sound Pressure Levels at Specific Distance from Unit, Lp 58.2 51.9 47.8 46.9 44.7 39.8 35.0 31.3 59.9 Lp
4. A-Weighted Sound Pressure Levels at Specific Distance from Unit, LpA 58.2 51.9 47.8 46.9 44.7 39.8 35.0 31.3 59.9 LpA
Calculation methods used in this program are patterned after the ASHRAE Guide; other ASHRAE Publications and the AHRI Acoustical Standards. While a very significant effort has been made to insure the technical accuracy of this program, it is assumed that the user is knowledgeable in the art of system sound estimation and is aware of the tolerances involved in real world acoustical estimation. This program makes certain assumptions as to the dominant sound sources and sound paths which may not always be
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appropriate to the real system being estimated. Because of this, no assurances can be offered that this software will always generate an accurate sound prediction from user supplied input data. If in doubt about the estimation of expected sound levels in a space, an Acoustical Engineer or a person with sound prediction expertise should be consulted.
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Sta
tic P
ressu
re (
in. w
g.)
2.0
FanCurve
1200RPM
1.8 1100RPM
1.6
1.4
1000RPM
1.2 900RPM
3.70BHP
1.0 SC
800RPM
0.8
0.6
700RPM
600RPM
3.00BHP
RP
0.4 500RPM
0.2
0.0
400RPM
0.50BHP
0.75BHP
1.00BHP
1.50BHP
2.00BHP
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
Airflow(CFM-thousands) RPM=759BHP=1.17MaximumRPM=1084MaximumHP=3.70
Note:Pleasecontactapplicationengineeringforselectionsoutsidetheshadedregion. SC-SystemCurve RP-RatedPoint
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Unit Feature Sheet for RTU-1 AND RTU-2 Project MATTHEVVS MAIN OFFICE
Preoared Bv:
10/11/2011
0355PM
e WeatherMaster· - 48HC
PACKAGED ROOFTOP GAS HEATING/ELECTRIC COOLING UNI TS
3,4,5,6,7.5,8.5,10 and12.5 TONS
--
Optional Louvered Hail Gua rd Shown
PUron.
STANDARD FEATURES INCLUDE: • Puron® (R-41O.A.)HFC refrigerant charged • ASHRAE 90.1compliant and Energy Sfar qualified • Scroll compressors with internalline break and overload
protection • Single-stage cooling capadty controlon all04-07 models • Two-stage coolingcapac1ty controlon 08-14models. • SEER's up to 15.6.EER's up to 13.0 and lEER's up to 13.0 • TXV meteringdevice on each independent circu • 04-06 models use X-13 (5 Speed/Torque)Direct Drive Motor
standard • Belt drive f an and pulley combinations - allthree phasemodels • Exc1us1ve non-corrosiVe compose condensate pan1n
accordance wh ASHRA.E Standard 62,slopingdesign,side or center dram
• Standard coolingoperationto 125•F (52.C)to 35•F (2•C) • Units use high pertormance copper tubeI aluminumiln
condenser andevaporator coils • Pre-painted exterior panels and primer-coated interior panels
testedto 500 hours salt spray protection • Fully insulated cabinet • Exclusive IGC solid-state controlf or on-boarddiagnostics with
LED error code designationburner controllogic andenergy saving indoor f an motor delav
• LowNOx models that meet California Air Quality Management • Induced draft gas heat combustion design • Redundant gas valves with up to two stages of heating • Low pressure and high pressure switch protected.
MAINTENANCE FEATURES: • Accesspanels with e.asy grip handles .
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WEATHERMASTER SERIES
WeatherMaster (48HC) units are high efficiency, single packaged gas heating,electriccoolinguns that are pre-wired and charged with Puron:l> (R-410)refngerant. They are f acto I)' tested in both heating and cooling modes, and rated in accordance wh AHRIStandards 210/240 (04-06 sizes) and 340/360 (07-14sizes). WeatherMaster units are designed in accordance with UL Standard 1995, and listed by the UndeiWriters'Laboratories.
Ullofd.... TU ......IIdic.llllloll
............ IN
...
Certified to ISO 9001
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• lnnovat1ve easy startng,no-stnp screws on unit access panels • Two-inch disposable returnairtmers andTooless fmer access • Newterminalboardf acilitatingsimple safety circu
troubleshooting andsimplifiedcontrolbox arrangement • Exclusive IGC solid-state controlf or on-boarddiagnostics with
LED error code designation,burner controllogic and energy sav1ng1ndoorf an motor delay.
INSTALLATIONFEATURES: • Thru-the-bottom power entry capability • S1ngle po nt gas andelectnc connect1ons • Fullperimeter base railwith built-in rigging adapters andf ork slots • Convertiblefrom verticalto horizontalairtlowf or slabmounting
STANDARD PARTS WARRANTY: • 10-year heat exchanger-15-year stainless steeloption • 5-year compressor • 1-year parts • Many optionalupgrades also available
OPTIONS INCLUDE BUT ARE NOTLIMITED TO: • Premierlink'" andMultiProtocolDirect OigalControls (DOC) Supply and ReturnAir Smoke Detectors,highstatic motors • Louveredcondenser coilguards andcoilcoating options
Economizer,disconnect and convenience outlefoptions • Stainless Steelheatexchanger (standard with Low Nox) • Hinged access panels • Humidi-MiZer dehumidificationsystemon 04 to 12 models.