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FILE NO. A09-004
SERVICE MANUAL
AIR-CONDITIONER
SPLIT TYPE
OUTDOOR UNIT
RAV-SM2244AT8-E RAV-SM2804AT8-E
RAV-SM2244AT8Z-E RAV-SM2804AT8Z-E
RAV-SM2244AT8ZG-E RAV-SM2804AT8ZG-E
RAV-SM2244AT7 RAV-SM2804AT7
RAV-SM2244AT7Z RAV-SM2804AT7Z
RAV-SM2244AT7ZG RAV-SM2804AT7ZG
R410A
PRINTED IN JAPAN, Jun, 2009 ToMo
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Adoption of New Refrigerant This Air Conditioner is a new type which adopts a new refrigerant HFC (R410A) instead of the conventional refrigerant R22 in order to prevent destruction of the ozone layer. WARNING Cleaning of the air filter and other parts of the air filter involves dangerous work in high places, so be sure to have a service person do it. Do not attempt it yourself. The cleaning diagram for the air filter is there for the service person, and not for the customer. CONTENTS SAFETY CAU
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7. CIRCUIT CONFIGURATION AND CONTROL SPECIFICATIONS ........... 45 7-1. Outdoor Unit Control ........................................................................................ 45 7-2. Outline of Main Controls .................................................................................. 49 8. TROUBLESHOOTING .............................................................................. 55 8-1. Summary of Troubleshooting...................................................................
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SAFETY CAUTION The important contents concerned to the safety are described on the product itself and on this Service Manual. Please read this Service Manual after understanding the described items thoroughly in the following contents (Indications/Illustrated marks), and keep them. [Explanation of indications] Indication Explanation Indicates contents assumed that an imminent danger causing a death or serious injury of DANGER the repair engineers and the third parties when an incorrect work ha
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WARNING Before troubleshooting or repair work, check the earth wire is connected to the earth terminals of the main unit, otherwise an electric shock is caused when a leak occurs. If the earth wire is not correctly connected, contact an electric engineer for rework. Check earth wires. Do not modify the products. Do not also disassemble or modify the parts. It may cause a fire, electric shock or injury. Prohibition of modification. For spare parts, use those specified (∗ ∗ ∗ ∗ ∗). If unspecifi
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WARNING After the work has finished, be sure to use an insulation tester set (500V Megger) to check the resistance is 2MΩ or more between the charge section and the non-charge metal section (Earth position). Insulator check If the resistance value is low, a disaster such as a leak or electric shock is caused at user’s side. When the refrigerant gas leaks during work, execute ventilation. If the refrigerant gas touches to a fire, poisonous gas generates. A case of leakage of the refrigerant an
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New Refrigerant (R410A) This air conditioner adopts a new HFC type refrigerant (R410A) which does not deplete the ozone layer. 1. Safety Caution Concerned to New Refrigerant The pressure of R410A is high 1.6 times of that of the former refrigerant (R22). Accompanied with change of refrigerant, the refrigerating oil has been also changed. Therefore, be sure that water, dust, the former refrigerant or the former refrigerating oil is not mixed into the refrigerating cycle of the air conditioner w
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4. Tools 1. Required Tools for R410A Mixing of different types of oil may cause a trouble such as generation of sludge, clogging of capillary, etc. Accordingly, the tools to be used are classified into the following three types. 1) Tools exclusive for R410A (Those which cannot be used for conventional refrigerant (R22)) 2) Tools exclusive for R410A, but can be also used for conventional refrigerant (R22) 3) Tools commonly used for R410A and for conventional refrigerant (R22) The table below show
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Combination Pattern (Indoor Unit / Outdoor Unit) Simultaneous twin 4-way air discharge Concealed Ceiling type cassette type duct type RAV-SM1104UT-E RAV-SM1102BT-E RAV-SM1102CT-E RAV-SM1104UT-E RAV-SM1102BT-E RAV-SM1102CT-E Simultaneous triple 4-way air discharge Concealed High wall type Ceiling type cassette type duct type (2 series) RAV-SM804UT-E RAV-SM802BT-E RAV-SM802CT-E RAV-SM802KRT-E RAV-SM804UT-E RAV-SM802BT-E RAV-SM802CT-E RAV-SM802KRT-E RAV-SM804UT-E RAV-SM802BT
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RAV-SM2244AT series Branch kit Slimultaneous twin SM110 — SM110 RBC-TWP101E Simultaneous triple SM80 — SM80 — SM80 RBC-TRP100E Simultaneous double twin SM56 — SM56 — SM56 — SM56 RBC-DTWP101E RAV-SM2804AT series Branch kit Slimultaneous twin SM140 — SM140 RBC-TWP101E Simultaneous triple SM80 — SM80 — SM80 RBC-TRP100E Simultaneous double twin SM80 — SM80 — SM80 — SM80 RBC-DTWP101E – 10 –
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1. SPECIFICATIONS 1-1. Indoor Unit 1-1-1. 4-Way Cassette Type Indoor unit 1 RAV-SM 1104UT-E 1404UT-E 1104UT-E 1404UT-E Model Indoor unit 2 RAV-SM 1104UT-E 1404UT-E 1104UT-E 1404UT-E Outdoor unit RAV-SM 2244AT8-E 2804AT8-E 2244AT7 2804AT7 Cooling capacity (kW) 20.0 23.0 20.0 23.0 Heating capacity (kW) 22.4 27.0 22.4 27.0 Power supply 3 phase 380 – 415V 50Hz 3 phase 380V 60Hz Indoor unit Running current (A) 10.09 – 9.24 13.24 – 12.12 10.09 13.24 Power consumption (kW) 6.24 8.19 6.24 8
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1-1-2. Duct Type Indoor unit 1 RAV-SM 1102BT-E 1402BT-E 1102BT-E 14002BT-E Model Indoor unit 2 RAV-SM 1102BT-E 1402BT-E 1102BT-E 1402BT-E Outdoor unit RAV-SM 2244AT8-E 2804AT8-E 2244AT7 2804AT7 Cooling capacity (kW) 20.0 23.0 20.0 23.0 Heating capacity (kW) 22.4 27.0 22.4 27.0 Power supply 3 phase 380 – 415V 50Hz 3 phase 380V 60Hz Indoor unit Running current (A) 11.51 – 10.54 15.44 – 14.13 11.51 15.44 Power consumption (kW) 7.12 9.55 7.12 9.55 Cooling Power factor (%) 94 94 94 94 EER
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1-1-3. Ceiling Type Indoor unit 1 RAV-SM 1102CT-E 1402CT-E 1102CT-E 1402CT-E Model Indoor unit 2 RAV-SM 1102CT-E 1402CT-E 1102CT-E 1402CT-E Outdoor unit RAV-SM 2244AT8-E 2804AT8-E 2244AT7 2804AT7 Cooling capacity (kW) 20.0 23.0 20.0 23.0 Heating capacity (kW) 22.4 27.0 22.4 27.0 Power supply 3 phase 380 – 415V 50Hz 3 phase 380V 60Hz Indoor unit Running current (A) 11.51 – 10.54 15.44 – 14.13 11.51 15.44 Power consumption (kW) 7.12 9.55 7.12 9.55 Cooling Power factor (%) 94 94 94 94 E
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1-1-4. 4-Way Cassette Type Indoor unit 1 RAV-SM 804UT-E 804UT-E 804UT-E 804UT-E Indoor unit 2 RAV-SM 804UT-E 804UT-E 804UT-E 804UT-E Model Indoor unit 3 RAV-SM 804UT-E 804UT-E 804UT-E 804UT-E Outdoor unit RAV-SM 2244AT8-E 2804AT8-E 2244AT7 2804AT7 Cooling capacity (kW) 20.0 23.0 20.0 23.0 Heating capacity (kW) 22.4 27.0 22.4 27.0 Power supply 3 phase 380 – 415V 50Hz 3 phase 380V 60Hz Indoor unit Running current (A) 11.51 – 10.54 15.44 – 14.13 11.51 15.44 Power consumption (kW) 7.12
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1-1-5. Duct Type Indoor unit 1 RAV-SM 802BT-E 802BT-E 802BT-E 802BT-E Indoor unit 2 RAV-SM 802BT-E 802BT-E 802BT-E 802BT-E Model Indoor unit 3 RAV-SM 802BT-E 802BT-E 802BT-E 802BT-E Outdoor unit RAV-SM 2244AT8-E 2804AT8-E 2244AT7 2804AT7 Cooling capacity (kW) 20.0 23.0 20.0 23.0 Heating capacity (kW) 22.4 27.0 22.4 27.0 Power supply 3 phase 380 – 415V 50Hz 3 phase 380V 60Hz Indoor unit Running current (A) 11.51 – 10.54 15.44 – 14.13 11.51 15.44 Power consumption (kW) 7.12 9.55 7.12
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1-1-6. Ceiling Type Indoor unit 1 RAV-SM 802CT-E 802CT-E 802CT-E 802CT-E Indoor unit 2 RAV-SM 802CT-E 802CT-E 802CT-E 802CT-E Model Indoor unit 3 RAV-SM 802CT-E 802CT-E 802CT-E 802CT-E Outdoor unit RAV-SM 2244AT8-E 2804AT8-E 2244AT7 2804AT7 Cooling capacity (kW) 20.0 23.0 20.0 23.0 Heating capacity (kW) 22.4 27.0 22.4 27.0 Power supply 3 phase 380 – 415V 50Hz 3 phase 380V 60Hz Indoor unit Running current (A) 11.51 – 10.54 15.44 – 14.13 11.51 15.44 Power consumption (kW) 7.12 9.55 7
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1-1-7. High Wall Type Indoor unit 1 RAV-SM 802KRT-E 802KRT-E 802KRT-E 802KRT-E Indoor unit 2 RAV-SM 802KRT-E 802KRT-E 802KRT-E 802KRT-E Model Indoor unit 3 RAV-SM 802KRT-E 802KRT-E 802KRT-E 802KRT-E Outdoor unit RAV-SM 2244AT8-E 2804AT8-E 2244AT7 2804AT7 Cooling capacity (kW) 20.0 23.0 20.0 23.0 Heating capacity (kW) 22.4 27.0 22.4 27.0 Power supply 3 phase 380 – 415V 50Hz 3 phase 380V 60Hz Indoor unit Running current (A) 11.51 – 10.54 15.44 – 14.13 11.51 15.44 Power consumption (k
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1-1-8. 4-Way Cassette Type Indoor unit 1 RAV-SM 564UT-E 804UT-E 564UT-E 804UT-E Indoor unit 2 RAV-SM 564UT-E 804UT-E 564UT-E 804UT-E Model Indoor unit 3 RAV-SM 564UT-E 804UT-E 564UT-E 804UT-E Indoor unit 4 RAV-SM 564UT-E 804UT-E 564UT-E 804UT-E Outdoor unit RAV-SM 2244AT8-E 2804AT8-E 2244AT7 2804AT7 Cooling capacity (kW) 20.0 23.0 20.0 23.0 Heating capacity (kW) 22.4 27.0 22.4 27.0 Power supply 3 phase 380 – 415V 50Hz 3 phase 380V 60Hz Indoor unit Running current (A) 11.51 – 1
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1-1-9. Compact 4-Way Cassette (600 × 600) Type Indoor unit 1 RAV-SM562MUT-E RAV-SM562MUT-E Indoor unit 2 RAV-SM562MUT-E RAV-SM562MUT-E Model Indoor unit 3 RAV-SM562MUT-E RAV-SM562MUT-E Indoor unit 4 RAV-SM562MUT-E RAV-SM562MUT-E Outdoor unit RAV-SM2244AT8-E RAV-SM2244AT7 Cooling capacity (kW) 20.0 20.0 Heating capacity (kW) 22.4 22.4 Power supply 3 phase 380 – 415V 50Hz 3 phase 380V 60Hz Indoor unit Running current (A) 11.51 – 10.54 11.51 Power consumption (kW) 7.12 7.12 Cooli
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1-1-10. Slim Duct Type Indoor unit 1 RAV-SM564SDT-E RAV-SM564SDT-E Indoor unit 2 RAV-SM564SDT-E RAV-SM564SDT-E Model Indoor unit 3 RAV-SM564SDT-E RAV-SM564SDT-E Indoor unit 4 RAV-SM564SDT-E RAV-SM564SDT-E Outdoor unit RAV-SM2244AT8-E RAV-SM2244AT7 Cooling capacity (kW) 20.0 20.0 Heating capacity (kW) 22.4 22.4 Power supply 3 phase 380 – 415V 50Hz 3 phase 380V 60Hz Indoor unit Running current (A) 11.51 – 10.54 11.51 Power consumption (kW) 7.12 7.12 Cooling Power factor (%) 94 9
