series co - · pdf file66 series co compressors for subcritical co2 applications up to 40 bar...

R744

Semi-hermetic compressors for subcritical CO2 applications

> At a glance

> Operating limits and performance data

> Technical data

> Dimensions and connections

> Scope of supply and accessories

SeriesCO up to 40 bar

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Series COCompressors for subcritical CO2 applications up to 40 bar

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At a glance

Based on our current semi-hermetic product range, with its outstanding advantages and features, as well as our longstan-ding activities 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 industrial refrigeration.Condensing pressures up to 40 bar (relates to approx. 5°C condensing temperature)

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 spare part storage.

Product range:...4 model sizes with 10 capacity stages

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 negligible 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. As carbon dioxide is less energy efficient than other refrigerants, recently work has particularly concentrated on optimising plant technology for specific appli-cations. Carbon dioxide is available naturally in large quantities.

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Series 1)

Ester oil fillingSizeNumber of cylinders 2) Pluscom 2)

Swept volumeNumber of polesCO2 version 3)

Type key

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

HGX34P/215-4 CO2

At a glance

HGX12P CO2

HGX22P CO2

HGX34P CO2

HGX4 CO2

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Reliable and safe oil supply

Classic lubricant circuit with an oil pump independent of the rotating direction

High volume oil sump Special oil charge for CO2: Bock C55E directly available from Bock

Wear-resistant durable driving gear

Solid construction and designLow friction sleeve bearingsAluminium piston with two ring assemblyAluminium connecting rod with high resistance piston bolt bearings

Drive 4 cylinder

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 side

- Valve made out of high quality, impact resistant spring steel

Quiet with low vibrations

Large dimensioned crankshaft areaDynamic mass balanceHigh volume pressure area to dampen pulsations4 cylinder construction from 19 m³/h

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Economic performance regulation

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

compact installation on compressor and connected ready for useup to 25% lower energy consumptionfor additional information, see page 15for HGX4, continuously variable speed control using external frequency converter (control cabinet installation) on request

Bock EFC Electronic Frequency Control

Oil sump heater (standard)- Changes possible without intervening in the refrigeration

circuit1 HGX12P CO2, HGX22P CO2, HGX34P CO2: PTC heater, self-regulating version, installation in housing bore2 HGX4 CO2: Permanently set version, installation in immersion sleeve

MP10 electronic motor protection

Standard for all compressorsTemperature monitoring with PTC sensors and optical status indicationPressure gas temperature sensor (thermal protection thermostat)For additional information, see page 13

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At a glance

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At a glance

Thermal protection thermostat (standard)

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

Unloaded start using Bock ESS (Electronic Soft Start) (option for HGX22P, HGX34P, HGX4)

Soft compressor start from zero to nominal speed, time controlled and monitoredNo standard unloaded start requiredIP20 unit for control cabinet installation (included loose)For additional information, see page 20

Bock ESS Electronic Soft Start

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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 mi-xing solubility with CO2. It possesses a special additive, which protects the compressors 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.

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Operating limits and notes

HGX12P CO2 1 / HGX22P CO2 /

HGX34P CO2 1 2 / HGX4 CO2 1

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

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 calculati-on on page 17 gives a more detailed explanation.

Unlimited application range

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

Performance data

The performance data for CO2 are based on 20 K suction gas superheat without liquid subcooling, at 50 Hz power supply

frequency. These are preliminary values as no uniform reference data are available. Besides which the influence of the oil part on refri-geration performance is largely unknown. Variations cannot be

excluded.

Conversion factor for 60 Hz = 1.2

Maximum allowed operating pressure (HP): 40 barMaximum allowed pressure during stand still periods:27 bar

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Performance data 50 Hz

50 Hz performance data

Relative to 20 K suction gas superheat without liquid subcooling

Type Cond.temp.

°C

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

Evaporating temperature °C

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

HGX12P/60-4 CO2

-20QP

108551,56

85891,71

66341,76

49661,72

-15QP

126311,71

101361,90

79651,97

60961,96

45061,88

-10QP

144931,89

117742,12

93942,23

73292,25

55572,18

40572,06

-5QP

134782,38

108932,54

86372,58

66902,54

50272,44

36272,28

0QP

124352,90

99952,98

78772,97

60582,89

45152,75

HGX12P/75-4 CO2

-20QP

134841,87

106522,08

82112,15

61342,10

-15QP

157042,06

125872,33

98772,44

75492,43

55762,31

-10QP

180092,28

146172,61

116502,77

90812,79

68832,71

50302,54

-5QP

167032,92

134893,14

106903,21

82783,16

62273,01

45112,80

0QP

153543,56

123353,68

97203,66

74823,55

55963,36

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

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Performance data 50 Hz

50 Hz performance data

Relative to 20 K suction gas superheat without liquid subcooling

Type Cond.temp.

°C

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

Evaporating temperature °C

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

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

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

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Technical data

Type Numberof

cylinders

Swept volume 50 / 60 Hz

(1450/1740 1/min)

Electrical data 3 Weight Connections Oil charge

Voltage

1

Max. working current

2

Max. power consumption

2

Starting current

(rotor locked)

Discharge lineDV

Suction lineSV

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

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/125-4 CO2 2 11,10 / 13,30 4 20,9 / 12,1 7,2 96 / 57 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 96 / 57 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

PW*1+2 PW*1/PW*1+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

Explanations:

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

Take account of the max. operating current / max. power consumption 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 PW 440-480 V Y/YY - 3 - 60 Hz PW PW = Part Winding, motors for part winding start (no start unloader required) > Winding ratios: 66% / 33% > Designs for Y/∆ on request

For soldering connections

Oil sump heater 110-240 V - 1 - 50/60 Hz

HGX12P, HGX22P, HGX34P: 50-120 W PTC heater, self-regulating, installation in housing bore

Oil sump heater 230 V - 1 - 50/60 Hz

HGX4: 80 W Permanently set version, installation in immersion sleeve

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›

* 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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Dimensions and connections

20866 318

ca.415ca.30

J

SV 1)

A1

1624x 10

98

ca.2

80

192

100

244

ca.240

F

DVB1

L1A

E

K,O

H,D1

B

HGX12P HGX12P/60-4 CO2 HGX12P/75-4 CO2

223109

ca.505361

ca.20

SV 1)

A1

H,D1

198ca.240

ca.3

10

4x 12

115

88

264

A

K,OE

F

B

L1

DV B1

J

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

Connections see page 76Dimensions for anti-vibration pad see page 76

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1) SV 90° rotatable

1) SV 90° rotatable Dimensions in mm

Dimensions in mm

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

112 535436

ca.690

73

A1

L1

SV 1)

DV

A

A

4x 11280330

24

306

278ca

.405

170

ca.360

XJF

CEH

KO

P

B B1

DD1

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


Dimensions in mm

Dimensions in mm

Connections see page 76Dimensions for anti-vibration pad see page 76View X, see page 77

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TypeØ a b c d

mm mm mm mm

HGX12P CO2 30 30 M 8 20

HGX22P CO2 40 30 M 10 20

HGX34P CO2 40 30 M 10 20

HGX4 CO2 40 30 M 10 20

Dimensions for anti-vibration pads

Connections HGX12P CO2 HGX22P CO2 HGX34P CO2 HGX4 CO2

SV

DV

Suction lineDischarge line

Please refer to technical data page 73

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 pressure safety switch OIL 1) - - - 7/16 " UNF

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

D1Connection oil return from oil separator


E Connection oil pressure gauge 1/8 " NPTF 1/8 " NPTF 1/8 " NPTF 1/8 " NPTF

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 hole 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

PConnection oil differential pressure sensor

- - - M 20 x 1,5

1) = Currently no switch for 40 bar available 1 View X, see page 77

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Scope of supply

Scope of supply HGX12P CO2 HGX22P CO2 HGX34P CO2 HGX4 CO2

Semi-hermetic two cylinder reciprocating compressor with drive motor for direct start 220-240 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 direct start 220-240 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 start 380-420 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 Bock MP10 electronic motor protection for installation in switch box (as accessory)

Thermal protection thermostat (PTC sensor)

Oil pump cover with screw connection for oil differential 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

Conmpressor safety valve

Suction and discharge line shut off valve

Inert gas charge

4 anti-vibration pads enclosed


View X:

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 (3x M6, 10 deep)

Dimensions in mm

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Accessories

Accessories HGX12P CO2 HGX22P CO2 HGX34P CO2 HGX4 CO2

1 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-operateHGX12P: IP65 HGX22P/HGX34P: IP54

1)

Compressor oil Bock C55E as 1 or 5 liter refill unit

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

4 Oil service valve (only possible ex-works)

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

6 Water cooled cylinder covers

Sea water resistant water-cooled cylinder covers

7 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

2) 2) 2)

8 Intermediate adapter for discharge line valve

Warranty

The warranty concerning semi-hermetic CO2 compressors for subcritical cascade systems is limited on manufacturing errors, because of the generally limited operational experi-ences.

1) Progressively adjustable speed control by means of an external frequency converter (switch box installation) on request.2) Voltage range: ± 10%

1 2 3 4

The judgement of a potential warranty is reserved to an in-spection at works. For consequential loss, no warranty can be taken over by Bock.

5 6 7 8

Any questions?Our team is looking forward to your phone call:

Phone: +49 7022 9454-0

Or send us an email: [email protected]

A free hotline service is provided for technical

enquiries:

Monday to Saturday, 8am - 9pm,

Phone: 0 0800 800 000 88

Monday to Saturday, 8am - 9pm,

Phone: 0 0800 800 000 88

2

Bock Kältemaschinen GmbHBenzstraße 7D-72636 FrickenhausenTelefon +49 7022 9454-0Telefax +49 7022 [email protected]

Art.Nr. 09660-09.07-GBSubject to change without notice

www.bock.de

series co - · pdf file66 series co compressors for subcritical co2 applications up to 40 bar...

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