Lennox EMEA FRIGA-BOHN eCO2Boost XS 1 Installation Instructions Manual Download Page 11

eCO2Boost XS 2

11

8.3. Electrical connection (DANFOSS regulator & several evaporators) 

8.2. Electrical connection (Thermostat & 1 evaporator) 

Supply 

thermostat 

Contact    

fan 

 

Contact 

defrost 

Fan 

Resistance 

CDU 

CLA  

  Dry 

contact    

AKCC 1 

AKVH 1 

AKCC  

Comp  

AKCC 

 Defrost 

KA1  

RES 1 

21 

22 

AKCC 

 AKVH  

12 

14 

10 

11 

CDU 

CLA 

21 

22 

Remarks: 

The contact of auxiliary relay KA

 (NO) must be wiring in parallel on the CDU ( contact CLA )  

Mandatory  to supply  1 of the AKVH during the ramp down of the CDU to avoid discharge pressure cut.               

AKVH control  R14=01 (On/Off) 

KA1  

(NC) 

KA2  

(NC) 

KA1 

(NO) 

KA2 

(NO) 

FAN 1  

AKCC 

 Fan 

AKCC 2 

KA2  

AKCC  

Comp  

RES  2 

FAN 2  

AKVH 2 

AKCC 

 Defrost 

AKCC 

 Fan 

AKCC 

 AKVH  

EVAPORATOR 1 

EVAPORATOR 2 

11 

10 

14 

12 

15 

15 

16 

16 

Summary of Contents for FRIGA-BOHN eCO2Boost XS 1

Page 1: ...eCO2Boost XS 2 1 Split System eCO2Boost XS 2 INSTALLATION INSTRUCTIONS www lennoxemea com N IN0043100 A 04 2019...

Page 2: ...eCO2Boost XS 2 2...

Page 3: ...10 C 5 C 5 C Cooling capacity 2 0kW 2 16 kW 4 33 kW 4 87 kW 5 6kW Electric power input 2 11kW 2 13 kW 2 62 kW 2 76 kW 2 78kW Operation temperature Evaporation Min Max 35 5 C Ambient Min Max 25 43 C D...

Page 4: ...eCO2Boost XS 2 4 2 Product diagram...

Page 5: ...diagram MT application 1 2 3 4 5 6 7 8 9 5 1 2 3 4 Loop A Loop C OFF MT Te 5 T ambiant 10 Loop A CLA Loop C CHC 5 1 2 3 4 6 7 8 9 Loop A Loop C MT Te 5 T ambiant 25 CDU 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6...

Page 6: ...00cc 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 Inst...

Page 7: ...pment to direct sunlight is unavoidable protect the device with a canopy 3 Choose a location where the noise produced by the refrigerating unit will not disturb any close neighbors The noisiest parts...

Page 8: ...ight is not evenly distributed In particular take care to avoid any shocks and sudden movements when transporting and raising the equipment 6 1 Piping connection Pipe slope 1 Optimal distance between...

Page 9: ...CDU has its own expansion valve Add just thermostat device with defrost control 9 Remarks Expansion valve for each evaporator One Pressure sensor by loop Evaporator volume MT 15000cc if more risk of...

Page 10: ...owcase Tev Tair_sc T 3 CDU EEV control the high pressure of each cycle optimal value as function of ambient temperature 4 Showcase EEV control the superheat of the refrigerant at the evaporator outlet...

Page 11: ...st KA1 RES 1 21 22 5 6 AKCC AKVH 12 14 10 11 CDU CLA 2 1 21 22 Remarks The contact of auxiliary relay KA NO must be wiring in parallel on the CDU contact CLA Mandatory to supply 1 of the AKVH during t...

Page 12: ...2 Charge Nitrogen gas in 80bar or 55bar if using 60bar relief valve 2 3 Check brazed part using leakage detector or leakage test liquid formability 3 Vacuuming 3 1 Set R744 CO manifold vacuuming pump...

Page 13: ...sor running liquid state charging from suction side service valve 5 Compressor start running push operation SW if CO2 charging stop before reaching target weight 6 Close service valve after CO2 weight...

Page 14: ...35 5 00 5 00 5 00 5 00 5 00 5 00 5 00 5 00 5 00 5 00 Target discharge temperature T_dis Ambient temperature T_amb 40 35 30 25 20 15 10 5 0 5 Evaporating temperature T_e 5 93 3 93 3 89 1 81 8 74 1 64 4...

Page 15: ...rom normal display 2 CLA blinking on display A parameter 3 Press DOWN or UP if changing each parameter set as CHC 4 Press right button if entering each parameter A00 A01 5 Press DOWN or UP if changing...

Page 16: ...eCO2Boost XS 2 16 11 3 Reading parameters list...

Page 17: ...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 2 429...

Page 18: ...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 cle...

Page 19: ...eCO2Boost XS 2 19...

Page 20: ...eCO2Boost XS 2 20 LENNOX EMEA reserves itself the right to make changes at any time without preliminary notice www lennoxemea com...

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