CO compressors (subcritical) · Based on our current semi-hermetic product range, with its...

CO2 compressors (subcritical)

At a glanceOperating limits and performance data Technical dataDimensions and connectionsScope of supply and accessories

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Based on our current semi-hermetic product range, with its out-standing advantages and features, as well as our longstanding ac-tivities and field applications for the transport sector, there is now a perfectly matched compressor series available for subcritical CO2 cascade systems.

Especially suited to supermarket refrigeration applications and in-dustrial refrigeration.Possible overpressure of up to 43 bar.

Special features:

As Bock compressors are extremely high quality and robust, the coordination with the CO2 is limited primarily to the motor design together with the individual mechanism adjustments as well as small modifications in the valve and seal areas.This permits the greatest possible level of operational safety through the extensive use of tried-and-trusted standard parts.In addition, there are the best possible conditions for economic spa-re part storage.

CO2 as a refrigerant

Within refrigeration technology, carbon dioxide (CO2) is known by the name R744 and has a long history. It is a colourless gas which liquefies under pressure and has a slightly acidic smell and taste. Carbon dioxide has no ozone depletion potential (ODP=0) and a ne-gligible direct effect on global warming (GWP=1) when used as a refrigerant in closed systems. It is not combustible, is chemically inactive and heavier than air.Carbon dioxide has a narcotic and asphyxiating effect on humans only at higher concentrations.Carbon dioxide is available naturally in large quantities.

The current program...4 model sizes with 14 capacity stages from 3,6 to 48,2 m³/h (50 Hz)

CO2 compressors (subcritical) - At a glance

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Type key | Compressors for CO2 (subcritical)

HGX34P / 215 - 4 CO2

CO2 Version 3)

Number of poles Swept volume Pluscom 2) Number of cylinders 2) Size Ester oil filling Series 1)

1) HG = Hermetic Gas-cooled (suction gas-cooled) 2) Additional declaration for Pluscom compressors3) CO2 design for subcritical applications

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Reliable and safe oil supply

Classic lubricant circuit with an oil pump independent of the -

rotating directionHigh volume oil sump -

Special oil charge for CO - 2: Bock C55E, directly available from Bock

Wear-resistant durable driving gear

Solid construction and design -

Low friction sleeve bearings -

Aluminium piston with two ring assembly -

Aluminium connecting rod with high resistance -

piston bolt bearings

Valve plate construction for safe operation

Valve design, tried and trusted all over the world, with one- -

sided fixed finger reed valves, suction and pressure sideValve made out of high quality, impact resistant spring steel -

Economic performance regulation

Continuously variable speed control using Bock EFC (Electronic Frequency Control)optional for HGX12P, HGX22P, HGX34P

compact installation on compressor and connected ready for use -

up to 25% lower energy consumption -

for additional information, see page 18 -

for HGX4, infinite speed control through external frequency -

converter (Bock EFCe)

Quiet with low vibrations

Large dimensioned crankshaft area -

Dynamic mass balance -

High volume pressure area to dampen pulsations -

4 cylinder construction from 19 m³/h -


Thermal protection thermostat

Pressure gas temperature monitoring, PTC sensor directconnection to the Bock MP10 motor protection

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Unloaded start using Bock ESS (Option)

(Electronic Soft Start) Optional for HGX22P and HGX34P -

Soft compressor start from zero to nominal speed, time -

controlled and monitoredNo standard unloaded start required -

IP20 unit for control cabinet installation (included loose) -

For additional information, see page 26 -

Bock MP10 electronic motor protection (standard)

Temperature monitoring with PTC sensors and optical status -

indicationDischarge gas temperature sensor (option) -

For additional information, see page 15 -

Oil

The compressors are equipped with Bock C55E, a special oil filling, which is available directly from Bock. This is a synthetic ester oil with high thermal load resistance, allowing good mixing solubility with CO2. It possesses a special additive, which protects the com-pressors against wear, even when subjected to extreme loads, such as those which exist in CO2 systems. This oil can be used both in transcritical and in subcritical systems.


6040200

-40

-20

0

20

40

phase separation

concentration (M-% oil in CO )2

tem

pera

ture

(C°)

30

-55-50

10

Oil sump heater HGX12P, HGX22P, HGX34P (standard)

Oil sump heater HGX4 (standard)

PTC heater, self-regulating version, installation in housing bore -

Replacement possible without opening the refrigerating circuit -

Design with immersion sleeve -

Replacement possible without opening the refrigerating circuit -

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CO2 Operating limits

HGX12P CO2 1 / HGX22P CO2 / HGX34P CO2 1 2 / HGX4 CO2 1 3

Unlimited application range

tO Evaporating temperature (°C)tC Condensing temperature (°C)∆tOh Suction gas superheat (K)

1 HGX12P/75-4 CO2, HGX34P/215-4 CO2 HGX4/385-4 CO2, HGX4/465-4 CO2 Max. condensing temperature tC = 0 °C 2 HGX34P/255-4 CO2 Max. condensing temperature tC = -5 °C

3 HGX4/555-4 CO2

Max. condensing temperature tC = -7,5 °C

Max. permissible operating pressure (LP/HP)1): 27/43 bar

1) LP = low pressure HP = high pressure

Notes

Operating limits

Compressor operation is possible within the limits shown on the application diagrams. Please note the coloured areas.Compressor application limits should not be chosen for design purposes or continuous operation.

Restrictions to the operating limits may occur when using the Bock EFC (Electronic Frequency Control).The sample calculation on page 22 gives a more detailed ex-planation.

Performance data

The performance data for CO2 are based on 20 K suction gas super-heat without liquid subcooling, at 50 Hz power supply frequency.These are preliminary values as no uniform reference data are avai-lable. Besides which the influence of the oil part on refrigeration per-formance is largely unknown. Variations cannot be excluded.

Conversion factor for 60 Hz = 1.2

Performance data for other operating points, see Bock software.

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Type Cond.temp.

°C

Cooling capacity QO [W] Power consumption Pe [kW]

Evaporating temperature °C

-25 -30 -35 -40 -45 -50

HGX12P/40-4 CO2

-20 QP

72361,06

57631,13

44511,16

33031,15

-15 QP

83841,14

67791,25

53421,31

40791,31

29931,28

-10 QP

96011,26

78591,41

62951,49

49121,51

37161,49

27081,42

-5 QP

89821,59

72861,71

57811,75

44701,73

33571,66

24451,54

0 QP

82951,95

66642,01

52352,01

40121,93

30001,81

HGX12P/50-4 CO2

-20 QP

90401,30

71951,40

55541,45

41071,45

-15 QP

104811,44

84631,56

66711,64

50961,65

37271,61

-10 QP

120191,60

98131,76

78561,85

61371,89

46471,85

33741,75

-5 QP

112271,99

90902,11

72132,16

55872,14

42002,06

30421,89

0 QP

103582,41

83082,49

65302,49

50152,41

37502,25

HGX12P/60-4 CO2

-20 QP

108551,56

85891,71

66341,76

49661,72

-15 QP

126311,71

101361,90

79651,97

60961,96

45061,88

-10 QP

144931,89

117742,12

93942,23

73292,25

55572,18

40572,06

-5 QP

134782,38

108932,54

86372,58

66902,54

50272,44

36272,28

0 QP

124352,90

99952,98

78772,97

60582,89

45152,75

HGX12P/75-4 CO2

-20 QP

134841,87

106522,08

82112,15

61342,10

-15 QP

157042,06

125872,33

98772,44

75492,43

55762,31

-10 QP

180092,28

146172,61

116502,77

90812,79

68832,71

50302,54

-5 QP

167032,92

134893,14

106903,21

82783,16

62273,01

45112,80

0 QP

153543,56

123353,68

97203,66

74823,55

55963,36

•

Relating to 20 K suction gas superheatwithout liquid subcooling

CO2 Performance data 50 Hz

CO2 compressors (subcritical) - Performance data

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Type Cond.temp.

°C



-25 -30 -35 -40 -45 -50

HGX22P/110-4 CO2

-20QP

188472,71

149852,93

115543,01

85532,99

-15QP

218792,95

176613,25

139063,39

106123,41

77743,31

-10QP

250763,25

204833,64

163863,86

127823,92

96653,84

70333,64

-5QP

234204,11

189634,40

150314,51

116194,46

87234,27

63393,95

0QP

216085,04

173295,20

136045,18

104265,00

77924,67

HGX22P/125-4 CO2

-20QP

222213,21

176933,45

136543,54

101043,50

-15QP

258133,49

208603,84

164344,02

125384,04

91753,91

-10QP

295813,85

241834,29

193524,56

150914,64

114024,56

82884,30

-5QP

276414,85

223865,19

177415,33

137085,29

102895,05

74864,64

0QP

255135,94

204656,14

160686,13

123255,92

92395,51

HGX22P/160-4 CO2

-20QP

274583,92

218334,25

168444,39

124904,35

-15QP

318764,29

257274,72

202534,95

154524,97

113264,82

-10QP

365274,75

298435,30

238735,62

186155,71

140695,59

102365,29

-5QP

341126,00

276346,41

219076,57

169316,50

127076,22

92335,74

0QP

314657,34

252597,57

198427,550

152157,30

113776,83

HGX22P/190-4 CO2

-20QP

330444,70

263015,09

202995,26

150395,21

-15QP

383325,17

309615,69

243865,95

186075,98

136235,79

-10QP

439405,73

359156,39

287406,76

224156,87

169416,73

123166,36

-5QP

410767,22

332757,70

263797,90

203887,82

153017,48

111206,90

0QP

379098,80

304159,09

238809,08

183068,78

136908,21

HGX34P/215-4 CO2

-20QP

376955,27

297525,83

229156,03

171105,95

-15QP

439765,85

352156,54

276086,83

210826,80

155626,55

-10QP

505166,52

409647,36

326147,75

253937,80

192287,58

140457,20

-5QP

468888,32

378228,83

299338,97

231498,81

173958,44

126007,96

0QP

4312210,11

3459210,35

2721510,26

209189,92

156279,44

HGX34P/255-4 CO2

-20QP

442896,31

351876,83

271237,05

200987,02

-15QP

514216,92

415027,63

326717,97

249287,98

182737,74

-10QP

588177,62

480708,58

384619,08

299909,20

226568,99

164618,51

-5QP

549859,61

4458710,34

3537710,61

2735410,49

2052010,02

148729,27

0QP

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Type Cond.temp.

°C



-25 -30 -35 -40 -45 -50

HGX4/310-4 CO2

-20QP

543047,77

431758,39

332958,64

246528,55

-15QP

630118,49

508539,33

400319,76

305359,80

223549,48

-10QP

722169,39

5898910,47

4718611,08

3679711,26

2781011,03

2021410,43

-5QP

6745211,82

5462712,63

4330412,96

3347112,83

2511712,28

1823211,33

0QP

6222314,44

4992614,93

3920714,91

3005514,42

2245913,49

HGX4/385-4 CO2

-20QP

671129,56

5337410,35

4116810,67

3049410,56

-15QP

7788510,46

6287411,52

4949812,06

3775512,11

2764411,71

-10QP

8925311,58

7292912,93

5834013,70

4548713,92

3436813,63

2498312,88

-5QP

8337614,62

6753415,62

5352916,02

4136015,86

3102615,16

2252913,99

0QP

7691717,88

6171918,47

4845818,43

3713517,81

2774916,65

HGX4/465-4 CO2

-20QP

8124211,58

6461912,52

4997112,91

3654812,79

-15QP

9409812,64

7559713,93

5982014,58

4601914,65

3344314,18

-10QP

10869013,99

8754815,63

6988016,56

5493816,83

4197116,49

3022815,59

-5QP

10125517,66

8093418,88

6408819,36

4996719,17

3782118,34

2690016,93

0QP

9376321,59

7425022,30

5821322,26

4490021,52

3356320,12

HGX4/555-4 CO2

-20QP

9652213,72

7675714,86

5919615,27

4384315,27

-15QP

11204315,07

9044616,70

7119817,34

5430017,29

3975716,89

-10QP

12839716,46

10491618,78

8392519,84

6542819,95

4942919,42

3593218,58

-7,5QP

12427318,70

10111020,70

8051021,46

6247821,30

4701720,52

3413119,45

0QP

•




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Explanations:

CO2

Type

Numberof

cylinders

Displacement50 / 60 Hz

(1450/1740 1/min)

Electrical data 3 Weight Connections 6 Oil charge

Voltage

1

Max.working current

2

Max. powerconsumption

2

Startingcurrent

(rotor locked)

Discharge line DV

Suction line SV

m³/h A kW A kg mm I inch mm I inch Ltr.

∆ / Y ∆ / Y

HGX12P/40-4 CO2 2 3,60 / 4,40 4 7,3 / 4,2 2,3 43 / 25 49 12 / 1/2 16 / 5/8 0,9

HGX12P/50-4 CO2 2 4,50 / 5,40 4 8,7 / 5,0 2,9 43 / 25 49 12 / 1/2 16 / 5/8 0,9

HGX12P/60-4 CO2 2 5,40 / 6,40 4 9,5 / 5,5 3,2 45 / 26 49 12 / 1/2 16 / 5/8 0,9

HGX12P/75-4 CO2 2 6,70 / 8,10 4 10,6 / 6,1 3,6 45 / 26 49 12 / 1/2 16 / 5/8 0,9

HGX22P/110-4 CO2 2 9,40 / 11,30 4 18,9 / 10,9 6,0 121 / 70 78 16 / 5/8 22 / 7/8 1,1

HGX22P/125-4 CO2 2 11,10 / 13,30 4 20,9 / 12,1 7,2 121 / 70 78 16 / 5/8 22 / 7/8 1,1

HGX22P/160-4 CO2 2 13,70 / 16,40 4 25,6 / 14,8 8,8 121 / 70 82 16 / 5/8 22 / 7/8 1,1

HGX22P/190-4 CO2 2 16,50 / 19,80 4 29,9 / 17,3 9,9 134 / 77 84 16 / 5/8 22 / 7/8 1,1

HGX34P/215-4 CO2 4 18,80 / 22,60 4 32,4 / 18,7 11,1 134 / 77 98 16 / 5/8 22 / 7/8 1,4

HGX34P/255-4 CO2 4 22,10 / 26,60 4 32,4 / 18,7 11,1 134 / 77 97 16 / 5/8 28 / 1 1/8 1,4

* PW1+2 * PW1 / PW1+2

HGX4/310-4 CO2 4 27,10 / 32,50 5 28,2 16,5 82 / 107 152 22 / 7/8 28 / 1 1/8 3,4

HGX4/385-4 CO2 4 33,50 / 40,20 5 31,6 18,5 82 / 107 151 22 / 7/8 28 / 1 1/8 3,4

HGX4/465-4 CO2 4 40,50 / 48,60 5 38,3 22,3 107 / 140 154 28 / 1 1/8 35 / 1 3/8 3,4

HGX4/555-4 CO2 4 48,20 / 57,80 5 38,3 22,3 107 / 140 157 28 / 1 1/8 35 / 1 3/8 3,4

Tolerance (± 10%) relates to the mean value of the voltagerange. Other voltages and current types on request.

Take account of the max. operating current / max. powerconsumption when designing contactors, leads and fuses.Switches: Service category AC3

All data are based on the mean value of the voltage range.

220-240 V ∆ / 380-420 V Y - 3 - 50 Hz 265-290 V ∆ / 440-480 V Y - 3 - 60 Hz

380-420 V Y/YY - 3 - 50 Hz PW440-480 V Y/YY - 3 - 60 Hz PWPW = Part Winding, motors for part winding start(no start unloaders required)

Winding ratios - : 66% / 33%Designs for Y/ - ∆ on request

For soldering connections

Oil sump heater 110-240 V - 1 - 50/60 HzHGX12P, HGX22P, HGX34P: 50-120 W -PTC heater, self-regulating, installation in housing bore

Oil sump heater 230 V - 1 - 50/60 HzHGX4: 80 W -Permanently set version, installation in immersion sleeve

* PW = Part Winding, motors for part winding start 1 = 1. part winding 2 = 2. part winding

1

2

3

4

5

6

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Connections see page 99 -Dimensions for anti-vibration pad see page 100 -

HGX12P CO2 HGX12P/40-4 CO2 HGX12P/50-4 CO2 HGX12P/60-4 CO2 HGX12P/75-4 CO2

HGX22P CO2 HGX22P/110-4 CO2 HGX22P/125-4 CO2 HGX22P/160-4 CO2 HGX22P/190-4 CO2

ca.1

15

ca.135

B1

L1A

E

K,O

H,D1

F

DV B

16298

280

100

192

244

4x 10ca

.

ca.240

J

1)SV

A1

ca.415

20831866

ca.30

ca.135

ca.1

35

1)

A1

SV

H,D1

ca.505361

223109

ca.20

DV B1

A

K,OE

F

B

L1

J115

88

198ca.240

ca.3

10

4x 12

264

Dimensions in mm 1) SV 90° rotatable

Centre of gravity

CO2 compressors (subcritical) - Dimensions and connections

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Connections see page 99 -Dimensions for anti-vibration pad see page 100 -Dimensions for view X see page 101 -

HGX34P CO2 HGX34P/215-4 CO2 HGX34P/255-4 CO2

HGX4 CO2 HGX4/310-4 CO2 HGX4/385-4 CO2 HGX4/465-4 CO2 HGX4/555-4 CO2

ca.165

ca.1

35

3104374 420

23027

1A1 1)SV

A1

ca.510

A

L1

F J

E

H,D1

DV B1

K,O

27211

5

ca.3

154x 12

ca.285

A B

ca.360

ca.235

ca.1

80

DD1

JF

CEH

KO

P

B B1

ÖV

X278

405

11280330

306

4x 24

ca.

170

A

A

A1

DV L1

1)SV

Q436

ca.690

112535

73

Dimensions in mm 1) SV 90° rotatable

Centre of gravity


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Connections HGX12P CO2 HGX22P CO2 HGX34P CO2 HGX4 CO2

SVDV

Suction lineDischarge line

Please refer to technical data, page 96

AConnection suction side,not lockable

1/8 " NPTF 1/8 " NPTF 1/8 " NPTF 1/8 " NPTF

A1Connection suction side,lockable

7/16 " UNF 7/16 " UNF 7/16 " UNF 7/16 " UNF

BConnection discharge side,not lockable


B1Connection discharge side,lockable

7/16 " UNF 7/16 " UNF 7/16 " UNF 7/16 " UNF

CConnection oil pressuresafety switch OIL 1) - - - 7/16 " UNF

DConnection oil pressuresafety switch LP 1) - - - 7/16 " UNF

D1Connection oil return fromoil separator


EConnection oil pressure gauge


F Oil drain M 8 M 10 M 10 M 22 x 1,5

H Oil charge plug 1/4 " NPTF 1/4 " NPTF 1/4 " NPTF M 22 x 1,5

J Oil sump heater Ø 15 mm Ø 15 mm Ø 15 mm M 22 x 1,5

K Sight glass 11/8" - 18 UNEF 11/8" - 18 UNEF 11/8" - 18 UNEF 4 Loch M 6

L1 Thermal protection thermostat 1/8 " NPTF 1/8 " NPTF 1/8 " NPTF 1/8 " NPTF

O Connection oil level regulator 11/8" - 18 UNEF 11/8" - 18 UNEF 11/8" - 18 UNEF 1

ÖVConnection oil service valve

- - - 1/4 " NPTF

PConnection oil pressuredifferential sensor

- - - M 20 x 1,5

QConnectionoil temperature sensor

- - - 1/8 " NPTF

1 Dimensions see view X page 101


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Dimensions with accessories HGX12P CO2 HGX22P CO2 HGX34P CO2

B

C

1

A

*)Dimensions in ( ) only for HGX22P/125-4 R410AMaße in ( ) nur für HGX22P/125-4 R410A

Cotes en ( ) seulement pour HGX22P/125-4 R410A

Maß A Maß B Maß CHG12P CO2+R410A ca.460 ca.500 ca.315HG22P CO2+R410A ca.550 (515) * ca.595 ca.350HG34P CO2+R410A ca.550 ca.620 ca.350

Type A B Cmm mm mm

HGX12P CO2 ca. 460 ca. 500 ca. 315

HGX22P CO2 ca. 550 ca. 595 ca. 350

HGX34P CO2 ca. 550 ca. 620 ca. 350

Dimensions for anti-vibration pad

Type Ø a b c dmm mm mm mm

HGX12P CO2 30 30 M8 20

HGX22P CO2 40 30 M10 20

HGX34P CO2 40 30 M10 20

HGX4 CO2 40 30 M10 20

Dimensions in ( ) = only for HGX22P/125-4 CO2

Additional fan 1

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View X

Dimensions in mm

Possibility to connect to oil level regulator

HGX4... CO2

Three-hole connection for oil level regulator make ESK, AC+R, CARLY (3x M6, 10 deep)

Three-hole connection for oil level regulator make TRAXOIL (3 x M6 x 10 deep)

Dimensions with accessories HGX4 CO2

EF

1

2

G

DC

A

B

Type A B C D E F Gmm mm mm mm mm mm mm

HGX4 CO2 ca. 705 ca. 680 ca. 455 416 91 131 ca. 360

Additional fan Intermediate adapter for discharge line valve1 2

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Scope of supply HGX12P CO2 HGX22P CO2 HGX34P CO2 HGX4 CO2

Semi-hermetic 2 cylinder reciprocating compressor with drive motor for direct start220-240 V ∆ / 380-420 V Y - 3 - 50 Hz265-290 V ∆ / 440-480 V Y - 3 - 60 HzSingle-section compressor housing with hermetically integrated electric motor

Semi-hermetic 4 cylinder reciprocating compressor with drive motor for direct start220-240 V ∆ / 380-420 V Y - 3 - 50 Hz265-290 V ∆ / 440-480 V Y - 3 - 60 HzSingle-section compressor housing with hermetically integrated electric motor

Semi-hermetic four cylinder reciprocating compressor with drive motor for part winding start380-420 V Y/YY - 3 - 50 Hz440-480 V Y/YY - 3 - 60 HzMotor unit flanged onto the compressor housing

Winding protection with PTC resistor sensors and electronic motor protection unit Bock MP10

Thermal protection thermostat (PTC sensor)

Oil pump cover with screwed connection for differential oil pressure sensor (∆p-switch Kriwan make)

Direct connection possibility of oil level controllers ESK, AC+R oder CARLY

Direct connection possibility of oil level controllers Traxoil

Oil sump heater 230 V - 1 - 50/60 Hz, 80 W

Oil sump heater 110-240 V - 1 - 50/60 Hz, 50-120 WPTC heater, self regulating

Oil charge: Bock C55E

Sight glass

Decompression valve

Suction and discharge line valve

Inert gas charge

4 anti-vibration pads enclosed

CO2 compressors (subcritical) - Scope of supply

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13Oil differential pressure sensor

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EFC Electronic Frequency Control EFCe Electronic Frequency Control extern3

Intermediate adapter for discharge line valve

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Oil service valve

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BCM2000 Bock Compressor Management6

Water-cooled cylinder covers

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Accessories HGX12P CO2 HGX22P CO2 HGX34P CO2 HGX4 CO2

1 Start unloader by means of a Bock-ESS (Electronic Soft Start)IP20 (Connection clamps IP00) for installation in switch cabinet

2 Continuously variable speed control by means of a Bock EFC (Electronic Frequency Control), compactly built onto compressor and connected ready-to-operate HGX12P: IP65 HGX22P/HGX34P: IP54

3 Continuously variable speed control by means of a Bock EFCe (Electronic Frequency Control for individual installation) IP54

Compressor oil Bock C55E as 1 or 5 liter refill unit

4 Oil differential pressure sensor (∆p-switch Kriwan make) 220-240 V - 1 - 50/60 Hz

5 Oil service valve

6 Bock Compressor Management BCM2000 including oil pressure control,oil temperature control (NTC), thermal protection thermostat (PTC) per cylinder cover (only possible ex works)

7 Water-cooled cylinder covers

Sea water resistant water-cooled cylinder covers

8 Additional fan 220-240 V - 1 - 50/60 Hz, 72/68 W, IP44 enclosed

Additional fan 230 V ∆ / 400 V Y - 3 - 50 Hz, 120 W,230-265 V ∆ / 400-460 V Y - 3 - 60 Hz, 190 W,IP54 enclosed

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9 Intermediate adapter for discharge line valve

1) Voltage range ± 10%

CO2 compressors (subcritical) - Accessories

ESS Electronic Soft Start

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Additional fan

CO compressors (subcritical) · Based on our current semi-hermetic product range, with its...

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