Lennox EMEA FRIGA-BOHN eCO2Boost XS 1 Installation Instructions Manual
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Summary of Contents for Lennox EMEA FRIGA-BOHN eCO2Boost XS 1
- Page 1 INSTALLATION INSTRUCTIONS Split System eCO2Boost XS 1 N° IN0042800-A 04.2019 www.lennoxemea.com eCO2Boost XS 1...
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Page 3: Table Of Contents
TABLE OF CONTENT 1. Product specifications 2. Product diagram 3. Operation diagram 4. Installation instruction 5. Handling 6. Piping connection 7. Power supply connection 8. External ON/OFF control signal 9. Piping and vacuuming 10. CO₂ charging 11. Parameters changing 12. First level of maintenance 1. -
Page 4: Product Diagram
2. Product diagram eCO2Boost XS 1... -
Page 5: Operation Diagram
3. Operation diagram Impossible d'afficher l'image. Votre ordinateur manque peut-être de mémoire pour ouvrir l'image ou l'image est endommagée. Redémarrez l'ordinateur, puis ouvrez à nouveau le fichier. Si le x rouge est toujours affiché, vous devrez peut-être supprimer l'image avant de la réinsérer. MT (Te -5℃) T ambient : 25℃... - Page 6 4.2. Installation place Installation conditions: Provide space above the equipment to allow it to be opened (access for maintenance / reparation operations). Provide at least 300 mm of free space on the right-hand side. Provide at least 300 mm of free space on the left-hand side and the front and back. Protect direct sunlight and then do not disturb fan air CDU :...
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Page 7: Handling
5. Handling When raising the refrigerating unit, always observe the following safety precautions: 1. Protect any parts that are in contact with hoisting ropes, e.g. using cardboard. 2. When the refrigerating unit is raised, do not go beneath it. 3. Weight CDU: Product weight: 57kg Total weight including packaging: 65kg 4. ... - Page 8 6.2. CDU connected to single evaporator Evaporator volume < 15000cc ( if more risk of poor lubrication). Remarks It’s not necessary to add expansion valve on evaporator because the CDU has its own expansion valve. Add just thermostat device with defrost control. eCO2Boost XS 1...
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Page 9: Power Supply Connection
7. CDU power supply connection Rated power 1,8kW Voltage 230V AC Frequency 50/60Hz Electric consumption 1,9kW Rated curent 8,4A Electrical power 2,2kVA Ground fault circuit breaker 8.1. External ON/OFF control signal System control logic 1. The compressor speed will change in order to achieve the low pressure set point decided by installer. - Page 10 8.2. Electrical connection (Thermostat & 1 evaporator) Contact Contact contact defrost Supply thermostat Resistance 8.3. Electrical connection (DANFOSS regulator & several evaporators) 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) (NC) (NO)
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Page 11: Piping And Vacuuming
9.1. Piping and vacuuming process 1. Brazing connection pipe 1-1. Check that cabinet EEV is completely opened. 1-2. Before brazing, insert 2bar nitrogen gas flow into pipe for preventing deposition of any oxide film on the inner surface of the piping, and also avoid heating up service valve by wet towel cover etc. - Page 12 9.3. Service valves connexion and handling 1.Untightened 4.Service valve handling the protection caps 2.Connect the CDU to the manifold Outlet Male G 3/8’’ Example of connexion Inlet G 3/8’’ female Outlet ¼’’ SAE 3.Untightened the compression packing 10.1. CO charging process 1. ...
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Page 13: Co₂ Charging
10.2. CO₂ charging amount estimation Evaporator volume Piping length 10.3. Check operation value 1. High pressure target Target discharge pressure P_dis[℃] Ambient temperature T_amb[℃] 9.86 9.86 9.45 8.78 8.11 7.43 6.76 6.50 6.50 6.50 9.86 9.86 9.45 8.78 8.11 7.43 6.76 6.50 6.50... -
Page 14: Mpa
11.1. CDU parameters change process Entering common parameter list (P-parameter) 1. Press only right “設定切替”button for 3 secs from normal display 2. ”P00” blinking on display (P-parameter) 3. Press right button (設定切替) if moving other P-parameter (P01, P02, …) 4. Press “DOWN▼” or “UP▲” if changing parameter set value 5. ... - Page 15 11.3. Reading parameters list eCO2Boost XS 1...
- Page 16 11.4. CO main properties Pressure as function of evaporating temperature P-H diagram of R744 (CO Consigne CDU BP Densité Densité Enthalpie Enthalpie Entropie Entropie Point Temperature Pression relative Pression absolue Liquide Vapeur Liquide Vapeur Liquide Vapeur (C) (MpaG) (MPa) (kg/m^3) (kg/m^3) (kJ/kg) (kJ/kg) (kJ/kg-K) (kJ/kg-K -35 1,1...
- Page 17 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) Error list and diagnostic : check product maintenance guide eCO2Boost XS 1...
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- Page 20 LENNOX EMEA reserves itself the right to make changes at any time without preliminary notice. www.lennoxemea.com eCO2Boost XS 1...
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