MULTI SPLIT TYPE, HEAT PUMP AIR CONDITIONERS Technical service manual R410A Cassette Inverter multi Series Indoor Models SMF-C09AI SMF-C12AI SMF-C18AI Outdoor Models SMF-4E27AI 1
CONTENTS 1. Features 2. Specification 3. Outline and dimension 4. Indoor unit combination 5. Capacity table 6. Wiring diagram 7. Electronic control functions 8.
1. Features: 1) Fashion design, quality life; 2) Low operation noise; 3) High efficiency screw fan; 4) Equal, fast, wide-angle cooling, more comfortable.
2.Specification indoor unit SMF-C09AI Model Power supply Capacity Ph-V-Hz SMF-C18AI 1Ph,220-240V~,50Hz 1Ph,220-240V~,50Hz 1Ph,220-240V~,50Hz Cooling Capacity BTU/h 9,000 12,000 18,000 Heating Capacity BTU/h 11,000 13,000 20,500 Design Pressure (Hi/Lo) Mpa 4.2/2.5 4.2/2.5 4.2/2.5 Max. Operating Pressure Mpa 3.7 3.7 3.7 Model YDK45-4F YDK45-4F YDK45-4F Brand Welling Welling Welling W 80 80 80 Capacitor uF 1.5uF/450V 1.5uF/450V 2.
Indoor unit(panel) Net/Gross weight(body) Kg 21/28 21/28 28/36 Dimension (W*H*D) mm 650x30x650 650x30x650 650x30x650 Packing mm 715x115x715 715x115x715 715x115x715 Kg 3/5 3/5 3/5 14-21 18-26 35-40 (W*H*D) Net/Gross weight(panel) 2 Application area m Qty per 20’/40’/40’HQ Pieces 5
OUTDOOR UNIT: SMF4E27AI Outdoor Model single Indoor unit combination Power supply Rated input power range Rated current range Treble Quadplex 1Ph,220-240V~,50Hz Ph-V-Hz Cooling Capacity range Cooling double 7000~18000 14000~24000 21000~26000 27000 W 750~1870 1450~2430 2050~2600 2650 A 3.1~7.8 6.1~10.1 8.56~10.9 11.1 Btu/h 10.
Input W 169(HIGH) Capacitor uF 5uF/500VAC Speed r/min 900(HIGH) 2 a.Number of rows Outdoor coil b.Tube pitch(a)x row pitch(b) mm 25.4×22 c.Fin spacing mm 1.5 d.Fin type (code) Hydrophilic aluminium e.Tube outside dia.and type mm φ9.53 innergroove tube f.Coil length x height x width mm 850×810×44 g.
Qty’per 20’ /40’ /40'HQ set Notes: 1. Nominal cooling capacities are based on the following conditions: Indoor temp: 27°CDB, 19°CWB; Outdoor temp: 35°CDB; Equivalent ref. Piping: 8m(horizontal) Outdoor operating frequency:78Hz Indoor combination:7K X4, setting temp.:17℃,setting fan speed: high speed. 2. Nominal heating capacities are based on the following conditions: Indoor temp: 20°CDB; Outdoor temp: 7°CDB, 6°CWB; Equivalent ref.
3.Outline and dimension Drain side and Tubing side Indoor unit(7k/9k/12k/18k): A 28.
4.Indoor unit combination: Caution on combination The one-drive-four outdoor unit SMF-4E27AI nominal cooling capacity is 8kw(under condition of ambient temp. 35℃db/24℃wb, indoor temp. 27℃db/19℃wb). According to refrigeration design criterion, total indoor unit capacity should be equal to outdoor capacity, otherwise, we can not guarantee best performance and safe operation. Although, we made special design on refrigeration system regarding customer’s requirements.
5. Capacity table SMF-4E27AI (7k+7k+7k+7k) COOLING OUTDOOR TEMPERATURE DRY Indoor 21ºC 25ºC 30ºC 35ºC 40ºC 45ºC Total capacity kW 7.63 7.30 7.03 6.64 6.37 6.17 Sensitive capacity kW 6.11 5.84 5.63 5.31 5.10 4.94 Input kW. 1.95 2.23 2.51 2.79 3.07 3.35 Total capacity kW 8.36 7.99 7.70 7.27 6.98 6.76 Sensitive capacity kW 6.69 6.40 6.16 5.81 5.58 5.41 Input kW. 2.06 2.36 2.65 2.95 3.24 3.53 Total capacity kW 9.09 8.69 8.37 7.90 7.58 7.
6.
Outdoor unit (SMF-4E27AI) 13
7. Electric control functions: 7.1 Protection 1. 3 minutes delay at restart for compressor. 2. Temperature protection of compressor top, compressor stops when the temp. of top of compressor is more than 120℃, compressor runs when the temp. of top of compressor is less than 105℃. 3. When AC voltage ≥ 270V for 30 seconds, Outdoor Unit stops operation and alarms. When AC voltage ≤ 260V for 30 seconds, Outdoor Unit resumes operation. 4.
7.2.2 Dehumidifying mode 1.The indoor fan is fixed in low speed 2. Low room temperature protection: When room temperature decreases to below 10℃, indoor fan stop, when room temperature restores to over 12℃, indoor fan start. 3. At dehumidifying mode, the anti-freezing function of the indoor heat exchanger is the same as that of cooling mode. 7.2.3 Heating mode 1. Indoor Fan actions at heating mode Indoor Fan can be set at HIGH/MID/LOW/AUTO by using a remote controller, but Anti-cold wind function prevails.
If one of following conditions is satisfied, end the defrost and turn into heating mode: a. The defrost time has reached to 10 minutes. b. When the temperature of outdoor heat exchanger rises up to 15°C. 3. Defrosting Actions: a. Compressor runs. b. 4 way valve switches off, c. Outdoor fan switches off d. Indoor fan running according to anti-cold wind function in heating mode. 4.
1. 2. 3. 4. The maximum length of timer is 24 hours and the minimum resolving power is 15 minutes. Timer on: first turn off the A/C, the A/C will be automatically on at the set time. Timer off: first turn on the A/C, the A/C will be automatically off at the set time Timer on/off function( on time is earlier than off time): first turn off the A/C, it will be automatically on at set time, and later be off at the set time, then unit turns on at set time. 5.
7.9 Outdoor unit LED display function: 1. 2. 3. 4. When stand-by it display number of indoor unit online; When operation it display frequency of outdoor unit; When defrost it display “df”; When a protection or error occurred, it display as the following table: Display Explanation E0 EEPROM error E1 No 1 Indoor units pipe temp. sensor or connector of pipe temp. sensor is defective E2 No 2 Indoor units pipe temp. sensor or connector of pipe temp. sensor is defective E3 No 3 Indoor units pipe temp.
2. Fan state: Display Corresponding mode 0 Off 1 Low fan 2 High fan 3. Opening degree of EXV: Opening degree equals the display data times 8; 4. Number of indoor unit The indoor unit that can communicate with outdoor unit normally. 7.11 Outdoor fan speed control There is one fan with two-speed, the fan speed is controlled according ambient temp. After the compressor stop, 30 seconds later the fan stop. When cooling: Ambient temp.rise Ambient temp.
12 Pipe Temperature Sensor 13 1 50118121032 2244050004 Evaporator Ass'y 1 50118121011 2154209004 14 Fixing clamp, evaaporater 1 50112111011 2124200413 15 Deseparating board, left 1 50112111012 2124200404 16 Inlet pipe, eva 1 50118121009 2164209006 17 Outlet pipe, eva 1 50118121002 2165239000 18 Wire crossing board 1 50112111014 2124200406 19 Fan 1 50112111015 2110011001 20 Fan Motor 1 50236113805 2240041405 21 Fan Motor Underlay 1 50112111017 2124200405 22
11 Drain Pump Holder 1 50112111010 2124200409 12 Pipe Temperature Sensor 1 50118121032 2244050004 13 Evaporator Ass'y 1 50118121011 2154209004 14 Fixing clamp, evaaporater 1 50112111011 2124200413 15 Deseparating board, left 1 50112111012 2124200404 16 Inlet pipe, eva 1 50118121009 2164209006 17 Outlet pipe, eva 1 50118121002 2164209109 18 Wire crossing board 1 50112111014 2124200406 19 Fan 1 50112111015 2110011001 20 Fan Motor 1 50236113805 2240041405 21 F
15 Deseparating board, left 1 50112111012 2124200404 16 Inlet pipe, eva 1 50118121009 2164209006 17 Outlet pipe, eva 1 50118121002 2164209109 18 Wire crossing board 1 50112111014 2124200406 19 Fan 1 50112111015 2110011001 20 Fan Motor 1 50236113805 2240041405 21 Fan Motor Underlay 1 50112111017 2124200405 22 Base Pan Ass'y 1 50112111018 2124200401 23 Fixing board, water pan 4 50112111019 2124200402 24 Sealing board, pipe out 1 50112111020 2124200411 25 Rubb
SMF-4E27AI 1 Clamp for front net 8 2113511801 2 Propeller fan 1 2114550002 3 Holder for fan motor 1 2123549027 4 fan motor 1 2240041722 5 Front net 1 2124550017 6 Front clapboard 1 2124532935 7 Separating board 1 2124820000 8 Left clapboard 1 2124530063 9 Little handle 1 2115029006 10 Cover 1 2124532936 11 Supporter of back 1 2124532912 26
12 electrical box assembly 1 2335739000 13 Rear net 1 2114820000 14 Condenser Ass'y 1 2154709047 15 Handle 2 2114540003 16 D high pressure valve assembly. 1 2165739017 17 C high pressure valve assembly. 1 2165739004 18 Big handle 1 2115739000 19 B high pressure valve assembly. 1 2165739002 20 A high pressure valve assembly.
