Lennox EMEA FRIGA-BOHN eCO2Boost XS 1 Installation Instructions Manual Download Page 6

eCO2Boost XS 2

6

1. Piping length 

 MT:  < 30m (risk of capacity drop & poor lubrication if > 30m) 
 LT:     < 20m (risk of capacity drop & poor lubrication if > 20m) 

 

2. Evaporator volume  

 MT :   < 15,000cc (risk of poor lubrication if > 15,000cc) 
 LT:      < 5,000cc (risk of poor lubrication if > 5,000cc)

 

 
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 

+5 

32 

2.00 

2.16 

2.46 

3.47 

4.33 

4.87 

5.44 

5.60 

38 

1.91 

2.02 

2.40 

2.81 

4.02 

4.70 

5.06 

5.19 

Pipe length [m] 

10 

20 

30 

MT @ Te -5°C 

1.2% 

2.4% 

3.6% 

LT @ Te -30°C 

2.3% 

4.5% 

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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