hg compressors - hg12p co2as bock compressors are extremely high quality and robust, the...
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HG compressors - HG12P CO2
Semi-hermetic compressors for subcritical CO2 applications
2 I www.bock.de
Based on our current semi-hermetic product range, with its out-standing advantages and features, as well as our longstanding activities, we are now expanding the bottom end of our CO2 com-pressor series for subcritical cascade systems.
Especially suited to supermarket refrigeration applications and industrial refrigeration.
Max. permissible operating pressure see operating limits diagram.
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.
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.Carbon dioxide is available naturally in large quantities.
CO2 compressors (subcritical) - At a glance
Type key | Compressors for CO2 (subcritical)
HGX12P / 30 - 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
The current program...4 model sizes with 15 capacity stages from 2,8 to 48,2 m³/h (50 Hz)
50
25
Disp
lacem
ent m
/h3
= New!
2,8
m /h3
HGX12P CO2 HGX22P CO2 HGX4 CO2HGX34P CO2
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CO2 Operating limits
Unlimited application range
tO Evaporating temperature (°C)tC Condensing temperature (°C)∆tOh Suction gas superheat (K)
1 HGX12P/75-4 CO2 Max. condensing temperature tC = 0 °C
Max. permissible operating pressure (LP/HP)1): 40/55 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.
Performance data
The performance data for CO2 are based on 20 K suction gas superheat without liquid subcooling, at 50 Hz power supply fre-quency. These are preliminary values as no uniform reference data are available. Besides which the influence of the oil part on refrigeration performance is largely unknown. Variations can-not be excluded.
Conversion factor for 60 Hz = 1.2
Performance data for other operating points, see Bock software.
CO2 compressors (subcritical) - Operating limits
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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
NEW:HGX12P/30-4 CO2
-20 QP
56740,80
4482 0,89
3451 0,92
25990,90
-15 QP
65910,90
53061,00
4161 1,05
31741,04
23661,00
-10 QP
74971,00
61501,12
49211,18
3830 1,20
28951,16
21371,10
-5 QP
69701,25
5688 1,33
4523 1,36
3493 1,35
2618 1,29
19161,21
0 QP
6419 1,50
5210 1,55
4115 1,55
31531,51
23441,44
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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CO2 compressors (subcritical) - Technical data
Explanations:
CO2
Type
Numberof
cylinders
Displacement50 / 60 Hz
(1450/1740 1/min)
Electrical data 3 Weight Connections 5 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/30-4 CO2 2 2,80 / 3,40 4 5,9 / 3,4 1,8 40 / 23 49 12 / 1/2 16 / 5/8 0,9
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 53 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 53 12 / 1/2 16 / 5/8 0,9
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
For soldering connections
Oil sump heater 110-240 V - 1 - 50/60 Hz 50-120 W PTC heater, self-regulating, installation in housing bore
1
2
3
4
5
New!
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Dimensions for anti-vibration pad see page 7
HGX12P CO2HGX12P/30-4 CO2 HGX12P/40-4 CO2
HGX12P/50-4 CO2
HGX12P/60-4 CO2 HGX12P/75-4 CO2
1) SV 90° rotatableCentre of gravity
Connections HGX12P CO2
SVDV
Suction lineDischarge line
Please refer to technical data, page 5
A* Connection suction side, not lockable 1/8 " NPTF
A1 Connection suction side, lockable 7/16 " UNF
B Connection discharge side, not lockable 1/8 " NPTF
B1 Connection discharge side, lockable 7/16 " UNF
D1 Connection oil return from oil separator 1/4 " NPTF
E Connection oil pressure gauge 1/8 " NPTF
F Oil drain M 8
H Oil charge plug 1/4 " NPTF
J1 Oil sump heater Ø 15 mm
K Sight glass 11/8" - 18 UNEF
L1 Thermal protection thermostat 1/8 " NPTF
O Connection oil level regulator 11/8" - 18 UNEF
S|1 Decompression valve HP 1/8 " NPTF
S|2 Decompression valve LP 1/8 " NPTF
CO2 compressors (subcritical) - Dimensions and connectionsca
.115
ca.135
1)
A1
J1
SV
SI2 X
318415ca.
20866
ca.30
DV
H,D1
FK,O
B1
L1A*
E
B100
244
98162192
280
4x 10ca
.
ca.240SI1X
Dimensions in mm
* = Only with additional adapter possible!
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CO2 compressors (subcritical) - Dimensions and connections
Dimensions with accessories
Dimensions for anti-vibration pad
Accessories
Continuously variable speed control by means of a Bock EFC(Electronic Frequency Control), compactly built onto compressor andconnected ready-to-operate: IP65
Compressor oil Bock C85E as 1 liter refill unit
Additional fan 220-240 V - 1 - 50/60 Hz,72/68 W, IP44 enclosed
Scope of supply
Semi-hermetic 2 cylinder reciprocating compressorwith 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
Winding protection with PTC resistor sensors and electronicmotor protection unit Bock MP10
Thermal protection thermostat (PTC sensor)
Direct connection possibility of oil level controllersESK, AC+R oder CARLY
Oil sump heater 110-240 V - 1 - 50/60 Hz, 50-120 WPTC heater, self regulating
Oil charge: Bock C85E
Sight glass
Decompression valve
Inert gas charge
4 anti-vibration pads enclosed
Decompression valve for HP- and LP-side
1
ca.455
EFC Electronic Frequency Control Additional fan 1 2
1
ca.455
1
ca.500
1
ca.460
ca.3152
ca.500
1
ca.460
ca.315
Bock Kältemaschinen GmbHBenzstraße 7D-72636 FrickenhausenTelephone: +49 7022 9454-0Fax: +49 7022 [email protected]
Art.No. 96173-09.2010-GbSubject to change without notice