co compressors (subcritical) - ammonia21 brochure hg co2.pdf · as bock compressors are extremely...
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CO2 compressors (subcritical)
At a glanceOperating limits and performance data Technical dataDimensions and connectionsScope of supply and accessories
88929697
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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)
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CO2 compressors (subcritical) - At a glance
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 fi xed fi nger 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, infi nite 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 -
CO2 compressors (subcritical) - At a glance
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 fi lling, 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.
CO2 compressors (subcritical) - At a glance
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
Cooling capacity QO [W] Power consumption Pe [kW]
Evaporating temperature °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
•
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
Cooling capacity QO [W] Power consumption Pe [kW]
Evaporating temperature °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
•
Relating to 20 K suction gas superheatwithout liquid subcooling
CO2 Performance data 50 Hz
CO2 compressors (subcritical) - Performance data
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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
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5
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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
CO2 compressors (subcritical) - Dimensions and connections
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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
1/8 " NPTF 1/8 " NPTF 1/8 " NPTF 1/8 " NPTF
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
1/4 " NPTF 1/4 " NPTF 1/4 " NPTF 1/4 " NPTF
EConnection 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 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
CO2 compressors (subcritical) - Dimensions and connections
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CO2 compressors (subcritical) - Dimensions and connections
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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CO2 compressors (subcritical) - Dimensions and connections
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 fl anged 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 controllersESK, 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 refi ll 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