background image

eCO2Boost XS 3

15

11.4. CO

2

 main properties  

Pressure as function of evaporating temperature 

P-H diagram of R744 (CO

2

Point 

Temperature 

Relative 

pressure 

Absolute  
pressure 

Densité 
Liquide 

Liquid 

density 

Liquid 

enthalpy 

Steam 

enthalpy 

Liquid 

entropy 

Steam 

entropy 

(C) 

(MpaG) 

(MPa) 

(kg/m

3

(kg/m

3

(kJ/kg) 

(kJ/kg) 

(kJ/kg-K) 

(kJ/kg-K) 

1

 

-35 

1,1 

1,2024 

1096,4 

31,216 

123,05 

436,23 

0,70794 

2,023 

2

 

-34 

1,1 

1,2452 

1092,4 

32,326 

125,1 

436,37 

0,71634 

2,018 

3

 

-33 

1,2 

1,2891 

1088,3 

33,469 

127,15 

436,51 

0,72474 

2,0129 

4

 

-32 

1,2 

1,3342 

1084,1 

34,644 

129,2 

436,62 

0,73311 

2,0079 

5

 

-31 

1,3 

1,3804 

1079,9 

35,854 

131,27 

436,73 

0,74148 

2,0029 

6

 

-30 

1,3 

1,4278 

1075,7 

37,098 

133,34 

436,82 

0,74982 

1,998 

7

 

-29 

1,4 

1,4763 

1071,5 

38,378 

135,41 

436,9 

0,75816 

1,993 

8

 

-28 

1,4 

1,5261 

1067,2 

39,696 

137,5 

436,96 

0,76649 

1,988 

9

 

-27 

1,5 

1,577 

1062,9 

41,051 

139,59 

437,01 

0,77481 

1,9831 

10

 

-26 

1,5 

1,6293 

1058,6 

42,445 

141,69 

437,04 

0,78311 

1,9781 

11

 

-25 

1,6 

1,6827 

1054,2 

43,88 

143,79 

437,06 

0,79141 

1,9732 

12

 

-24 

1,6 

1,7375 

1049,8 

45,356 

145,91 

437,06 

0,79971 

1,9683 

13

 

-23 

1,7 

1,7935 

1045,3 

46,875 

148,03 

437,04 

0,80799 

1,9633 

14

 

-22 

1,8 

1,8509 

1040,8 

48,437 

150,16 

437,01 

0,81627 

1,9584 

15

 

-21 

1,8 

1,9096 

1036,3 

50,045 

152,3 

436,96 

0,82455 

1,9535 

16

 

-20 

1,9 

1,9696 

1031,7 

51,7 

154,45 

436,89 

0,83283 

1,9485 

17

 

-19 

1,9 

2,031 

1027 

53,402 

156,61 

436,81 

0,8411 

1,9436 

18

 

-18 

2,0 

2,0938 

1022,3 

55,155 

158,77 

436,7 

0,84937 

1,9386 

19

 

-17 

2,1 

2,1581 

1017,6 

56,959 

160,95 

436,58 

0,85765 

1,9337 

20

 

-16 

2,1 

2,2237 

1012,8 

58,816 

163,14 

436,44 

0,86593 

1,9287 

21

 

-15 

2,2 

2,2908 

1008 

60,728 

165,34 

436,27 

0,87421 

1,9237 

22

 

-14 

2,3 

2,3593 

1003,1 

62,697 

167,55 

436,09 

0,88249 

1,9187 

23

 

-13 

2,3 

2,4294 

998,14 

64,725 

169,78 

435,89 

0,89078 

1,9137 

24

 

-12 

2,4 

2,501 

993,13 

66,814 

172,01 

435,66 

0,89908 

1,9086 

25

 

-11 

2,5 

2,574 

988,06 

68,967 

174,26 

435,41 

0,90739 

1,9036 

26

 

-10 

2,5 

2,6487 

982,93 

71,185 

176,52 

435,14 

0,91571 

1,8985 

27

 

-9 

2,6 

2,7249 

977,73 

73,471 

178,8 

434,84 

0,92405 

1,8934 

28

 

-8 

2,7 

2,8027 

972,46 

75,829 

181,09 

434,51 

0,9324 

1,8882 

29

 

-7 

2,8 

2,8821 

967,12 

78,261 

183,39 

434,17 

0,94076 

1,883 

30

 

-6 

2,9 

2,9632 

961,7 

80,77 

185,71 

433,79 

0,94915 

1,8778 

31

 

-5 

2,9 

3,0459 

956,21 

83,359 

188,05 

433,38 

0,95756 

1,8725 

32

 

-4 

3,0 

3,1303 

950,63 

86,032 

190,4 

432,95 

0,96599 

1,8672 

33

 

-3 

3,1 

3,2164 

944,97 

88,794 

192,77 

432,48 

0,97444 

1,8618 

34

 

-2 

3,2 

3,3042 

939,22 

91,647 

195,16 

431,99 

0,98293 

1,8563 

35

 

-1 

3,3 

3,3938 

933,38 

94,596 

197,57 

431,46 

0,99145 

1,8509 

36

 

3,4 

3,4851 

927,43 

97,647 

200 

430,89 

1,8453 

37

 

3,5 

3,5783 

921,38 

100,8 

202,45 

430,29 

1,0086 

1,8397 

38

 

3,6 

3,6733 

915,23 

104,07 

204,93 

429,65 

1,0172 

1,834 

39

 

3,7 

3,7701 

908,95 

107,46 

207,43 

428,97 

1,0259 

1,8282 

40

 

3,8 

3,8688 

902,56 

110,98 

209,95 

428,25 

1,0346 

1,8223 

41

 

3,9 

3,9695 

896,03 

114,62 

212,5 

427,48 

1,0434 

1,8163 

42

 

4,0 

4,072 

889,36 

118,41 

215,08 

426,67 

1,0523 

1,8102 

43

 

4,1 

4,1765 

882,55 

122,34 

217,69 

425,81 

1,0612 

1,8041 

44

 

4,2 

4,2831 

875,58 

126,44 

220,34 

424,89 

1,0702 

1,7977 

45

 

4,3 

4,3916 

868,44 

130,71 

223,01 

423,92 

1,0792 

1,7913 

46

 

10 

4,4 

4,5022 

861,12 

135,16 

225,73 

422,88 

1,0884 

1,7847 

12. First level of maintenance 

1.

Regular inspections 

2.

In case of dirt inside the CDU, clean the outdoor heat exchangers with soft brush or vacuum cleaner. 

3.

Water can be used in case of clogged heat exchanger.

  

(Noted: CDU operation should be stopped when using water cleaning for heat exchanger) 

Содержание eCO2Boost L

Страница 1: ...eCO2Boost XS 3 1 Split System eCO2Boost XS 3 INSTALLATION INSTRUCTIONS www lennoxemea com N IN0043400 A 06 2019 ...

Страница 2: ...eCO2Boost XS 3 2 ...

Страница 3: ...um microchannel Refrigerant Type GWP R744 CO2 1 Power supply Phases Voltage Frequency 3 phases 400 50 or 60 V Hz Communication Standard Modbus PED Category 1 Maximum working pressure MWP High pressure side 14 MPa 9 Mpa Low pressure side 1 Conditions T Ambient 32 C Compressor speed 80hz without pipe cover TABLE OF CONTENT 1 Product specifications 2 Product diagram 3 Operation diagram 4 Installation...

Страница 4: ...eCO2Boost XS 3 4 2 Product diagram ...

Страница 5: ...Enthalpy 2 1 5 LOOP A LOOP B 5 2 3 4 1 LOOP C 4 3 LT loop A Te 30 T ambient 25 MT loop B Te 5 T ambient 25 Pressure Enthalpy 2 3 1 4 5 LOOP A 2 3 1 4 5 LOOP B 5 2 3 4 1 LOOP C 3 Operation diagrams MTor LT MTor LT Accumulator Accumulator Gas Cooler Compressor Cascade Heat Exchanger Gas Cooler Cascade Heat Exchanger Gas Cooler EEV EEV EEV Compressor Compressor LOOP C LOOP A LOOP B 2nd Unit Cooler 1s...

Страница 6: ...0cc 3 COOLING CAPACITY 4 PERFORMANCE DROP Please follow requirement to avoid performance drop and ensure good lubrication of the compressor Requirement for CDU installation design conditions 4 1 Installation design of CDU Capacity kW Ambient Temperature Evaporating temperature 35 30 20 15 10 5 0 5 32 3 55 4 11 4 72 6 65 8 73 9 10 9 45 9 73 38 3 34 3 62 4 48 5 23 7 77 8 00 8 55 8 77 Pipe length m 1...

Страница 7: ... In regions where significant snowfalls occur always place the equipment under a roof a shelter or a snow proof tarpaulin 8 Choose a location that is protected from strong winds 9 Avoid locations exposed to oil splashes salt within 2km from coast sulfur gas nearby hot water springs volcanic area 10 To avoid any interference the refrigerating unit must be installed at a minimum distance of 3 m from...

Страница 8: ... 3 8 9 52 mm K65 0 65 120 Hard copper 1 155 Pipe slope 0 OIL RETURN Unit cooler CDU Suction pipe Suction pipe Refrigerant discharge pipe Refrigerant discharge pipe Thermal insulation material Thermal insulation material INCORRECT CORRECT 6 1 Piping connection Unit cooler Condensing unit Electronic expansion valve Thermal insulation covering the entire length of tubing Less than 5m Siphon every 5m ...

Страница 9: ...valve Check valve LP HP sensor HP LP HP LP HP LP Ambient temp sensor 7 CDU power supply connection COMMUNICATION Product side Master controller GND Triple phase 400V electrical connection Rated power 5 4 kW Voltage 400V 3 AC Frequency 50 60Hz Electric consumption 5 5 kW Rated current 8 5 A Electrical power 6 9 kVA Ground fault circuit breaker 10 A POWER SUPPLY Product side Power supply GND T N R S...

Страница 10: ...he low pressure set point decided by installer 2 The low pressure is function of the evaporating temperature required for the showcase Tev Tair_sc T 3 CDU EEV control the high pressure of each cycle optimal value as function of ambient temperature DEFROST CONTROL LOGIC 1 CDU compressors and fans should stop before the unit cooler defrost 2 Defrost compressor stop signal should be sent to CDU befor...

Страница 11: ...nt 3 3 Check connector and each tube are closed tightly 3 3 Loose service valve rod in middle position 3 way opening before vacuuming 3 4 Vacuuming for 2 3 hours inside pressure keeping 1bar vacuuming status 4 Setting parameter value 4 1 Change loop parameter set depending on target evaporating temperature during vacuuming process suction pressure default value 3 0MPa 1 Remove process pipe 2 Inser...

Страница 12: ...service valve 5 Compressor start running push operation SW if CO2 charging stop before reaching target weight 6 Close service valve after CO2 weight reaching target amount 7 Keep check cooling operation until unit cooler air or cabinet temperature is reached at target temperature 8 Check low pressure until reaching target operation conditions both of CO2 air side are stable 9 Compare actual high p...

Страница 13: ...5 107 6 107 6 107 6 107 6 107 6 98 4 88 7 84 7 84 7 84 7 20 96 1 96 1 96 1 96 1 96 1 94 5 94 5 94 5 94 5 94 5 25 98 3 98 3 98 3 98 3 98 3 96 8 96 8 96 8 96 8 96 8 30 100 4 100 4 100 4 100 4 100 4 98 8 98 8 98 8 98 8 98 8 35 102 2 102 2 102 2 102 2 102 2 100 7 100 7 100 7 100 7 100 7 1 High pressure target 2 Discharge temperature target 10 3 Check operation value 11 1 CDU parameters change process ...

Страница 14: ...r fan motor speed upper side 0 to 999 rpm 1 14 FU1 Gas cooler fan DCV output lower side 0 to 6 00 V 0 01 15 FU2 Gas cooler fan DCV output upper side 0 to 6 00 V 0 01 16 PSO Target suction pressure 0 8 to 14 0 MPaG 0 1 17 PDO Target discharge pressure 0 8 to 14 0 MPaG 0 1 18 CO Target compressor speed 0 to 90 Hz 1 11 2 Parameters adjustment according to unit cooler temperature set point Parameter U...

Страница 15: ...2 3593 1003 1 62 697 167 55 436 09 0 88249 1 9187 23 13 2 3 2 4294 998 14 64 725 169 78 435 89 0 89078 1 9137 24 12 2 4 2 501 993 13 66 814 172 01 435 66 0 89908 1 9086 25 11 2 5 2 574 988 06 68 967 174 26 435 41 0 90739 1 9036 26 10 2 5 2 6487 982 93 71 185 176 52 435 14 0 91571 1 8985 27 9 2 6 2 7249 977 73 73 471 178 8 434 84 0 92405 1 8934 28 8 2 7 2 8027 972 46 75 829 181 09 434 51 0 9324 1 8...

Страница 16: ...eCO2Boost XS 3 16 13 Fault Tree Analysis 13 2 Too much cooling 13 1 No cooling ...

Страница 17: ...reaker installed Suitable earth fault differential circuit breaker power rating Rated current Rated sensivity Ground wiring correctly connected Screws correctly tightened Power supply insulation 230V circuit ground earth capacity 10 MΩ minimum Suitable wiring power capacity Power supply equal to 230 V Piping Service vavles opened Leakage observed oil mark on pipe Piping clogged too much brasing ma...

Страница 18: ...tic recovery if Pd 10 MPa after Parameter P30 x10sec Default P30 30 E10 Inverter compressor error Next page E10 H Next page E10 H Next page E10 H E16 Gas cooler top fan speed error FF2 Parameter P64 x10rpm x Parameter P65 time Default value P64 30 and P65 2 no operate Alarm activation CDU no operate Repair E17 Gas cooler bottom fan speed error FF1 Parameter P66 x10rpm x Parameter P67 time Default ...

Страница 19: ...ivation CDU operate Automatic recovery if 30 C TU 100 C E40 Communications error with master controler if using an external communication system No communication during 10 minutes operate with local target value Alarm activation CDU operate Automatic recovery if communication restart with master E42 Inverter communications error No communication during 30 seconds no operate Alarm activation CDU no...

Страница 20: ...ication error No connection during 30 sec no operate No alarm Automatic recovery after Parameter P30 x10sec and communication restart E10 H24 E10 H28 E10 H3O Inverter voltage drop detection Inverter input 140 V no operate No alarm Automatic recovery after Parameter P30 x10sec And 140 V E10 H2C Control PCB power supply error no signal on controller no operate No alarm Automatic recovery after Param...

Страница 21: ... installation conditions Avoid air short circuit E02 Maximum discharge pressure triggered Likely cause Check points Solution Dust and dirt clogging the gas cooler fins Confirm clogging e g dust in the gas cooler Clean the gas cooler EEV failure Switch OFF and back ON Check if a pulsating initialisation noise is heard inside the EEV If no pulsating noise is heard take the following corrective measu...

Страница 22: ...the pressure sensor E23 Ambient air temperature sensor error Likely cause Check points Solution Sensor connection Wiring connection and conductivity 1 Plug and unplug the connector 2 Replace wire Control PCB failure Control PCB output signal sent to pressure sensor Replace control PCB Sensor failure Check sensor resistance Replace the temperature sensor E24 Discharge temperature sensor error Likel...

Страница 23: ...lter PCB check details measurement point point on annexes page Control PCB failure PCB control input and output Replace the control PCB Inverter board failure Inverter board input and output Replace the inverter board E50 EEV PID calculation error 1 E51 EEV PID calculation error 2 Likely cause Check points Solution EEV coil connection problem Wiring connection and conductivity 1 Plug and unplug th...

Страница 24: ...eCO2Boost XS 3 24 LENNOX EMEA reserves itself the right to make changes at any time without preliminary notice www lennoxemea com ...

Отзывы: