Service Manual
Page 3
... for cool only type, refrigerant is R407C Design edition Product series: S stands for EASY STOCK Product appearance Cooling / Heating capacity,19=19000BTU/h Product type : "B" stands for cassette type, "C" stands for convertible type, "D" stands for duct, "S" stands for wall mounted type, "F" stands for console type, "U" stands for outdoor of split unit Max. 1 to 3 1.2 Brief Introduction for T1,T2,T3 working condition Type of Conditioner Cooling Only Air T1 18 ℃~43℃ Heat pump -7℃~43℃ Electricity Heating...
... for cool only type, refrigerant is R407C Design edition Product series: S stands for EASY STOCK Product appearance Cooling / Heating capacity,19=19000BTU/h Product type : "B" stands for cassette type, "C" stands for convertible type, "D" stands for duct, "S" stands for wall mounted type, "F" stands for console type, "U" stands for outdoor of split unit Max. 1 to 3 1.2 Brief Introduction for T1,T2,T3 working condition Type of Conditioner Cooling Only Air T1 18 ℃~43℃ Heat pump -7℃~43℃ Electricity Heating...
Service Manual
Page 4
... more comfortable and the unit is new concept brought by multiple types: infrared controller, wired controller, central controller. No need to avoid the earth getting warmer. As a result, the user will control refrigerant flow more convenient. Commercial Air Conditioner 1.4 Product features DC inverter technology, high energy efficiency, higher EER A+, energy saving for the user The outdoor unit adopts DC inverter compressor and motor, so save power energy is no communication wire between indoors. And the outdoor can be convenient...
... more comfortable and the unit is new concept brought by multiple types: infrared controller, wired controller, central controller. No need to avoid the earth getting warmer. As a result, the user will control refrigerant flow more convenient. Commercial Air Conditioner 1.4 Product features DC inverter technology, high energy efficiency, higher EER A+, energy saving for the user The outdoor unit adopts DC inverter compressor and motor, so save power energy is no communication wire between indoors. And the outdoor can be convenient...
Service Manual
Page 6
... rating power input) 99% 99% Fuse size (recommended size) A 16 Indoor units number 1~3 Model / Manufacture SNB130FGYMC-L1 / MGC Compressor Oil charge and type Type 500CC, FV 50S Twin Rotary (DC inverter) Winding resistance(at 20℃) Ω 0.58 Fan type × Number Axial × 1 Motor speed r/min Max. 860 Fan system Fan motor model Motor type ARW4403AS DC Outdoor unit Motor output/input power W 55/69 Air-flows (H/M/L) m³/h about 2000 Heat exchanger Type / Diameter Number of 3U19FS1ERA+3*AS09CS1ERA 2. Norminal condition: indoor temperature (cooling...
... rating power input) 99% 99% Fuse size (recommended size) A 16 Indoor units number 1~3 Model / Manufacture SNB130FGYMC-L1 / MGC Compressor Oil charge and type Type 500CC, FV 50S Twin Rotary (DC inverter) Winding resistance(at 20℃) Ω 0.58 Fan type × Number Axial × 1 Motor speed r/min Max. 860 Fan system Fan motor model Motor type ARW4403AS DC Outdoor unit Motor output/input power W 55/69 Air-flows (H/M/L) m³/h about 2000 Heat exchanger Type / Diameter Number of 3U19FS1ERA+3*AS09CS1ERA 2. Norminal condition: indoor temperature (cooling...
Service Manual
Page 7
...Max.Running current (indoor + outdoor) A / A 15.2 15.2 Power facor(under rating power input) Fuse size (recommended size) Indoor units number 99% 99% A 25 2~4 Model / Manufacture TNB220FLHMC-L / MGC Compressor Oil charge and type Type Winding resistance(at 20℃) Fan type × Number 870CC / FV50S Twin Rotary (DC inverter) Ω 0.88 Axial × 1 Fan system Motor speed Fan motor model Motor type r/min Max. 860 EHDS80A100AS DC Outdoor unit Motor output/input power Air-flows (H/M/L) Heat exchanger Type / Diameter Number of 4U25HS1ERA+4*AS09CS1ERA. 2. The...
...Max.Running current (indoor + outdoor) A / A 15.2 15.2 Power facor(under rating power input) Fuse size (recommended size) Indoor units number 99% 99% A 25 2~4 Model / Manufacture TNB220FLHMC-L / MGC Compressor Oil charge and type Type Winding resistance(at 20℃) Fan type × Number 870CC / FV50S Twin Rotary (DC inverter) Ω 0.88 Axial × 1 Fan system Motor speed Fan motor model Motor type r/min Max. 860 EHDS80A100AS DC Outdoor unit Motor output/input power Air-flows (H/M/L) Heat exchanger Type / Diameter Number of 4U25HS1ERA+4*AS09CS1ERA. 2. The...
Service Manual
Page 8
...Power facor(under rating power input) Fuse size (recommended size) Indoor units number A / A A 16.5 16.5 99% 99% 25 2~4 Model / Manufacture TNB220FLHMC-L / MGC Compressor Oil charge and type Type Winding resistance(at 20℃) Fan type × Number 870CC / FV50S Twin Rotary (DC inverter) Ω 0.88 Axial × 1 Motor speed r/min Max. 860 Fan system Fan motor model Motor type EHDS80A100AS DC Outdoor unit Heat exchanger Motor output/input power Air-flows (H/M/L) Type / Diameter Number of 4U30HS1ERA+4*AS09CS1ERA. 2. Norminal condition: indoor temperature (cooling...
...Power facor(under rating power input) Fuse size (recommended size) Indoor units number A / A A 16.5 16.5 99% 99% 25 2~4 Model / Manufacture TNB220FLHMC-L / MGC Compressor Oil charge and type Type Winding resistance(at 20℃) Fan type × Number 870CC / FV50S Twin Rotary (DC inverter) Ω 0.88 Axial × 1 Motor speed r/min Max. 860 Fan system Fan motor model Motor type EHDS80A100AS DC Outdoor unit Heat exchanger Motor output/input power Air-flows (H/M/L) Type / Diameter Number of 4U30HS1ERA+4*AS09CS1ERA. 2. Norminal condition: indoor temperature (cooling...
Service Manual
Page 9
...Max.Running current (indoor + outdoor) Power facor(under rating power input) Fuse size (recommended size) Indoor units number A / A A 17.4 17.4 99% 99% 30 2~5 Model / Manufacture TNB220FLHMC-L / MGC Compressor Oil charge and type Type Winding resistance(at 20 ℃) Fan type × Number 870CC / FV50S Twin Rotary (DC inverter) Ω 0.88 Axial × 1 Fan system Motor speed Fan motor model Motor type r/min Max. 900 EHDS80A100AS DC Outdoor unit Motor output/input power Air-flows (H/M/L) Heat exchanger Type / Diameter Number of 5U34HS1ERA+3*AS09CS1ERA+1*AS18CS1ERA...
...Max.Running current (indoor + outdoor) Power facor(under rating power input) Fuse size (recommended size) Indoor units number A / A A 17.4 17.4 99% 99% 30 2~5 Model / Manufacture TNB220FLHMC-L / MGC Compressor Oil charge and type Type Winding resistance(at 20 ℃) Fan type × Number 870CC / FV50S Twin Rotary (DC inverter) Ω 0.88 Axial × 1 Fan system Motor speed Fan motor model Motor type r/min Max. 900 EHDS80A100AS DC Outdoor unit Motor output/input power Air-flows (H/M/L) Heat exchanger Type / Diameter Number of 5U34HS1ERA+3*AS09CS1ERA+1*AS18CS1ERA...
Service Manual
Page 10
...×260 718×680×380 Drainage pipe (material , I.D./O.D.) mm PVC 26/32 Control type (Remote /wired) Remote or Wired Fresh air hole dimension mm 95 Electricity Heater kW NONE Noise level ---sound presure (H-M-L) dB(A) 40/36/32 Noise level ---sound power (H-M-L) dB(A) 51/47/43 Weight (Net / Shipping) kg / kg 17/20 Panel model (color) PB-700IB（WHITE） PIPING Panel Dimension External （L×W×H） mm...
...×260 718×680×380 Drainage pipe (material , I.D./O.D.) mm PVC 26/32 Control type (Remote /wired) Remote or Wired Fresh air hole dimension mm 95 Electricity Heater kW NONE Noise level ---sound presure (H-M-L) dB(A) 40/36/32 Noise level ---sound power (H-M-L) dB(A) 51/47/43 Weight (Net / Shipping) kg / kg 17/20 Panel model (color) PB-700IB（WHITE） PIPING Panel Dimension External （L×W×H） mm...
Service Manual
Page 47
.... Electric wiring The air conditioner must be installed. The electric leakage breaker must be shielded. Communication wire of indoor and outdoor units carefully. For the connection wire without terminals Wiring Method for connection wire After connection,the wire must use special circuit , and wiring by wire cover. The wire cover shall press on the end of the wire, then connect to confirm it must be replaced by consumers themselves. -46- Note: Power line and communication wire...
.... Electric wiring The air conditioner must be installed. The electric leakage breaker must be shielded. Communication wire of indoor and outdoor units carefully. For the connection wire without terminals Wiring Method for connection wire After connection,the wire must use special circuit , and wiring by wire cover. The wire cover shall press on the end of the wire, then connect to confirm it must be replaced by consumers themselves. -46- Note: Power line and communication wire...
Service Manual
Page 49
..., seven-segment numeric will flash and display some numbers, this number is impossible to test heating. 2) To test cooling, set the highest temperature, at 16 OC. Then power off the unit and power on how many units installed in the system) after the unit starts, the CN4 ON SW1 1234 CN1 Errors of the wiring will display the frequency of refrigerant if needed. Check the voltage supplied to operate through the instruction manual.
..., seven-segment numeric will flash and display some numbers, this number is impossible to test heating. 2) To test cooling, set the highest temperature, at 16 OC. Then power off the unit and power on how many units installed in the system) after the unit starts, the CN4 ON SW1 1234 CN1 Errors of the wiring will display the frequency of refrigerant if needed. Check the voltage supplied to operate through the instruction manual.
Service Manual
Page 55
... blow all over the room. (3) Install the unit near heat sources. 30 cm or more -54- >_]]VbTZR\ _^UZdZ_^Vb 4.6. into consideration and leave the spaces shown in Fig.A. Under ceiling Indoor unit Decide the mounting position with the customer as follows: Left INDOOR UNIT (1) Install the indoor unit level on a strong wall, floor, ceiling which is not subject to the outdoor unit is the danger of the indoor...
... blow all over the room. (3) Install the unit near heat sources. 30 cm or more -54- >_]]VbTZR\ _^UZdZ_^Vb 4.6. into consideration and leave the spaces shown in Fig.A. Under ceiling Indoor unit Decide the mounting position with the customer as follows: Left INDOOR UNIT (1) Install the indoor unit level on a strong wall, floor, ceiling which is not subject to the outdoor unit is the danger of the indoor...
Service Manual
Page 63
...sum of the room air conditioner current and the current of other remote control unit operations. (2) Air filter removal and cleaning, and how to use air louvers. (3) Give the operating and installation manuals to the customer in accordance with the operating manual: (1) Starting and stopping method, operation switching, temperature adjustment, timer, air flow switching, and other electrical appliances. CHECK ITEMS (1) INDOOR UNIT (1) Is operation of each lamp light normally? (3) Do not air flow direction louvers operate normally? (4) Is the drain normal? (2) Join the cover plates (right...
...sum of the room air conditioner current and the current of other remote control unit operations. (2) Air filter removal and cleaning, and how to use air louvers. (3) Give the operating and installation manuals to the customer in accordance with the operating manual: (1) Starting and stopping method, operation switching, temperature adjustment, timer, air flow switching, and other electrical appliances. CHECK ITEMS (1) INDOOR UNIT (1) Is operation of each lamp light normally? (3) Do not air flow direction louvers operate normally? (4) Is the drain normal? (2) Join the cover plates (right...
Service Manual
Page 80
...mode, Tao≤5℃(E). 3.3 Electronic expansion valve (EEV) control 3.3.1 Electronic characteristic Max. sensor Unit B gas pipe temp. sensor Unit E gas pipe temp. sensor Strainer EEV A Unit B liquid pipe temp. sensor Strainer EEV E Compressor Suction temp. >_]]VbTZR\ _^UZdZ_^Vb Pipe system for 5U34HS1ERA 4-way valve coil: OFF Refrigerant flow in cooling ON Refrigerant flow in heating Indoor heat exchanger temp. sensor Strainer EEV D Unit E liquid pipe temp. sensor FAN-OUT Outdoor ambient temperature sensor Liquid stop valve 4-way valve Low pressure switch...
...mode, Tao≤5℃(E). 3.3 Electronic expansion valve (EEV) control 3.3.1 Electronic characteristic Max. sensor Unit B gas pipe temp. sensor Unit E gas pipe temp. sensor Strainer EEV A Unit B liquid pipe temp. sensor Strainer EEV E Compressor Suction temp. >_]]VbTZR\ _^UZdZ_^Vb Pipe system for 5U34HS1ERA 4-way valve coil: OFF Refrigerant flow in cooling ON Refrigerant flow in heating Indoor heat exchanger temp. sensor Strainer EEV D Unit E liquid pipe temp. sensor FAN-OUT Outdoor ambient temperature sensor Liquid stop valve 4-way valve Low pressure switch...
Service Manual
Page 86
... than 72Hz for 8 hrs, the system will need another oil return within 5 minutes after the unit restarts up, the time will be accumulative. After the compressor restarts up directly, then to cooling mode, the anti-freezed protection is null and void, and the low voltage protection is invalid. control) AUTO running indoor motor AUTO AUTO (set fan speed) AUTO stopped indoor motor STOP STOP STOP 4-way valve OFF OFF OFF -85- In...
... than 72Hz for 8 hrs, the system will need another oil return within 5 minutes after the unit restarts up, the time will be accumulative. After the compressor restarts up directly, then to cooling mode, the anti-freezed protection is null and void, and the low voltage protection is invalid. control) AUTO running indoor motor AUTO AUTO (set fan speed) AUTO stopped indoor motor STOP STOP STOP 4-way valve OFF OFF OFF -85- In...
Service Manual
Page 91
... of wired controller are different modes, the system will adjust the operation mode according to wired controller until the outdoor mode and the requested mode of remote controller are the same. -90- Sign definition: Indoor Tai Tc1 Tc2 Ambient temp. Fan operation Indoor fan motor will firstly confirm the outdoor current operation mode. When Tai＜Tset, entering auto heating mode. 5.2 Auto cooling mode is set temperature; If they are the same, the unit will run until outdoor stops or outdoor mode the requested mode of indoor unit...
... of wired controller are different modes, the system will adjust the operation mode according to wired controller until the outdoor mode and the requested mode of remote controller are the same. -90- Sign definition: Indoor Tai Tc1 Tc2 Ambient temp. Fan operation Indoor fan motor will firstly confirm the outdoor current operation mode. When Tai＜Tset, entering auto heating mode. 5.2 Auto cooling mode is set temperature; If they are the same, the unit will run until outdoor stops or outdoor mode the requested mode of indoor unit...
Service Manual
Page 92
... motor according to the swing signal from the wired controller. Anti-cold air control In heating mode, after changing the set speed 26(30) low speed 22(26) off in heating mode or the thermostat is the control point when Tao>10℃; 2) Indoor unit will not sound until the outdoor mode and the requested mode of indoor unit are the same. 6.5 COOL (included AUTO COOL), DRY, FAN are not abnormal mode. 6.6 HEAT and FAN are not abnormal mode. 7. Blowing remaining heat operation...
... motor according to the swing signal from the wired controller. Anti-cold air control In heating mode, after changing the set speed 26(30) low speed 22(26) off in heating mode or the thermostat is the control point when Tao>10℃; 2) Indoor unit will not sound until the outdoor mode and the requested mode of indoor unit are the same. 6.5 COOL (included AUTO COOL), DRY, FAN are not abnormal mode. 6.6 HEAT and FAN are not abnormal mode. 7. Blowing remaining heat operation...
Service Manual
Page 93
... speed, set , the unit will be ON. 16. In heating mode, after the sleep is cancelled. Water pump control 12.1 Water pump will be back to the current clock and the timer clock set temp: 30℃; Cooling trial operation: indoor sends S-CODE=SD to the wired controller, then the water pump will confirm the unit ON or OFF according to normal state. 13. Timer operation 15.1 Wired control type: wired controller will control the unit ON/OFF; 15.2 Remote control type: indoor unit will work normally...
... speed, set , the unit will be ON. 16. In heating mode, after the sleep is cancelled. Water pump control 12.1 Water pump will be back to the current clock and the timer clock set temp: 30℃; Cooling trial operation: indoor sends S-CODE=SD to the wired controller, then the water pump will confirm the unit ON or OFF according to normal state. 13. Timer operation 15.1 Wired control type: wired controller will control the unit ON/OFF; 15.2 Remote control type: indoor unit will work normally...
Service Manual
Page 101
... fixed well or in heating mode(except for defrost) replace main control board and check again yes check if the indoor motor has no power input replace indoor motor and check again -100- Too low system pressure causes that the unit stops and the compressor protection works, the failure can be electrified again, re-check if indoor fan motor cannot startup normally no in open circuit. Pressure switch wire is no fixed...
... fixed well or in heating mode(except for defrost) replace main control board and check again yes check if the indoor motor has no power input replace indoor motor and check again -100- Too low system pressure causes that the unit stops and the compressor protection works, the failure can be electrified again, re-check if indoor fan motor cannot startup normally no in open circuit. Pressure switch wire is no fixed...
Service Manual
Page 133
... temperature may not be displayed). 1. Do not press line controller or switches by sharp objects. When the wired controller is on the basis of the unit will increase/reduce 1 4.Press "FAN SPEED" switch 6 FAN ONLY Operation: Press "FAN SPEED" switch to change to "HIGH"--"MED"--"LOW"--"HIGH" In AUTO,COOL,DRY,HEAT Operation: Press "FAN SPEED" switch to change . Press "ON/OFF" switch. 5 The air conditioner starts operating, and the light on the wired controller is power on line controller directly The line controller displays...
... temperature may not be displayed). 1. Do not press line controller or switches by sharp objects. When the wired controller is on the basis of the unit will increase/reduce 1 4.Press "FAN SPEED" switch 6 FAN ONLY Operation: Press "FAN SPEED" switch to change to "HIGH"--"MED"--"LOW"--"HIGH" In AUTO,COOL,DRY,HEAT Operation: Press "FAN SPEED" switch to change . Press "ON/OFF" switch. 5 The air conditioner starts operating, and the light on the wired controller is power on line controller directly The line controller displays...
Service Manual
Page 135
... and OFF timing are the same, the setting is no display C ROOM TEMP. parts of wired controller explanation : 1.The unit starts or stops at the same time, 13 2 press "timing" switch to normal operation, press "timing" until there is invalid. Even in MODE FAN SWING advance before using the timing function. MODE COOL FAN HIGH OPERATION HEALTH TEMP 1.Press "TIME" switch. Notes The shorter setting time will be carried out firstly. When...
... and OFF timing are the same, the setting is no display C ROOM TEMP. parts of wired controller explanation : 1.The unit starts or stops at the same time, 13 2 press "timing" switch to normal operation, press "timing" until there is invalid. Even in MODE FAN SWING advance before using the timing function. MODE COOL FAN HIGH OPERATION HEALTH TEMP 1.Press "TIME" switch. Notes The shorter setting time will be carried out firstly. When...
Service Manual
Page 137
... distribute wiring according to pressing any wires. 5. >_]]VbTZR\ _^UZdZ_^Vb Installation Manual For Wire Controller 1. C ROOM TEMP. Note:Try a wall as flat as possible for installation. Two wired controllers control one . Use shielded wire between indoor and wire controller.And be damaged. The wire controller connected with the terminal A, B, C of polar wire. 6. TIMER CLOCK UP DOWN VENTILATION ON OFF DAILY AUTO RECOVERY NORMAL MODE FAN SWING HEALTH TEMP CLOCK TIME TIMER SET RECOVERY CHECK FILTER RESET ON/OFF Wire controller Bracket Screw holes 52...
... distribute wiring according to pressing any wires. 5. >_]]VbTZR\ _^UZdZ_^Vb Installation Manual For Wire Controller 1. C ROOM TEMP. Note:Try a wall as flat as possible for installation. Two wired controllers control one . Use shielded wire between indoor and wire controller.And be damaged. The wire controller connected with the terminal A, B, C of polar wire. 6. TIMER CLOCK UP DOWN VENTILATION ON OFF DAILY AUTO RECOVERY NORMAL MODE FAN SWING HEALTH TEMP CLOCK TIME TIMER SET RECOVERY CHECK FILTER RESET ON/OFF Wire controller Bracket Screw holes 52...
