ZDAE-2040-09M25 Airwell Air Conditioner Instruction Manual

SERVICE MANUAL
ZDAE

ZDAE-2040-09M25
ZDAE-2050-09M25
ZDAE-3060-09M25
ZDAE-3070-09M25
ZDAE-4080-09M25
ZDAE-5130-09M25

Summary

Outdoor Unit:
Model list:

Specifications

Power
Supply| Rated Voltage| V-| 220-240
Rated Frequency| Hz| 50
Phases| | 1
Cooling Capadty| W| 4.1
Heating Capacity| W| 4.4
Coding Power Input| W| 1.1
Heating Power Input| W| 0.97
Coding Current Input| A| 4.88
Heating Current Input| A| 4.44
Rated Power Input| W| 2.25
Rated Current| A| 10
EER| W/V| 3.73
COP| W/N| 4.54
Outdoor
Unit| Compressor Trademark| | ZHUHAI LANDA COMPRESSOR CO.,LTD
Compressor Model| | QXF-Al20zH170A
Compressor Refrigerant Oil Type| | FW68DA
Compressor Type| | Inverter Rotary
L.R.A| A| 25
Compressor Rated Load Amp (RLA)| A| /
Compressor Power Input| W| 1096
Compressor Thermal Protector| | KSD115°C HPC115/95U1
Throttling Method| | Electron expansion valve
Cooling Operation Ambient Temperature Range| °C| -15-43
Heating Operation Ambient Temperature Range| °C| -15-24
Condenser Material| | Aluminum Fin-copper Tube
Condenser Pipe Diameter| mm| Φ7.94
Rows-Fin Gap(mm)| mm| 1-1.2
Coll length (L) X Height (H) X Col width (W)| mm| 834×528×19.05
Fan Motor Speed (rpm) (HIM/L)| rpm| Coding: 8001 Heating: 860
Output of Fan Motor| W| 30
Fan Motor RLA| A| 0.4
Fan Motor Capacitor| pF| /
Air Flow Volume of Outdoor Unit| m3Ih| 2300
Fan Type-Piece| | Axial-flow
Fan Diameter-Height| mm| 420-131.1
Defrosting Method| | Aubmatic Defrosling
Climate Type| | T1
Isolation| | I
Moisture Protection| | IPX4
Permissible Excessive Operating Pressure for the Discharge Side| MPa| 4.3
Permissible Excessive Operating Pressure for the Suction Side| MPa| 2.5
Dimension (WXDXH)| mm| 822×352×550
Dimension of Carton Box (LXWXH)| mm| 869×395×594
Dimension of Package (LXWXH)| mm| 872×398×620
Net Weight| kg| 30
Gross Weight| kg| 32.5
Refrigerant| | R32
Refrigerant Charge| kg| 0.75
Outdoor
Unit| Cross-sectional Area of Power Cable Conductor| mm2| 1.5
---|---|---|---
Recommended Power Cable(Core)| N| 3
Connection Pipe Connection Method| | Flare Connection
Not Additional Gas Connection Pipe Length| m| 10
Connection Pipe Gas Additional Charge| g/m| 20
Outer Diameter of Liquid Pipet| inch| 1/4
Outer Diameter of Gas Pipet| inch| 3/8
Outer Diameter of Liquid Pipe2| inch| 1/4
Outer Diameter of Gas Pipe2| inch| 3/8
Outer Diameter of Liquid Pipe3| inch| /
Outer Diameter of Gas Pipe3| inch| /
Outer Diameter of Liquid Pipe4| inch| /
Outer Diameter of Gas Pipe4| inch| /
Outer Diameter of Liquid PipeS| inch| /
Outer Diameter of Gas PipeS| inch| /
Connection Pipe Max. Height Distance (Indoor and Indoor)| m| 15
Max. equivalent connection pipe length| m| 20
Connection Pipe Max. Length Distance (total length)| m| 40

The above data is subject to change without notice; please refer to the nameplate of the unit.

Power
Supply| !Rated Voltage| V-| 220-240
Rated Frequency| It| 50
Phases| | 1
Cooling Capacity| W| 5.3
Heating Capacity| W| 5.65
Cooling Power Input| W| 1.48
Heating Power Input| W| 1.25
Cooling Current Input| A| 6.56
Heating Current Input| A| 5.55
Rated Power Input| W| 2.5
Rated Current| A| 11
EER| W/W| 3.58
COP| W/W| 4.52
Outdoor
Unit| Compressor Trademark| | ZHUHAI LANDA COMPRESSOR CO.,LTD
Compressor Model| | QXF-A139zH170A
Compressor Refrigerant Oil Type| | FW68DA
Compressor Type| | Inverter Rotary
L.R.A| A| 25
Compressor Rated Load Amp (RLA)| A| /
Compressor Power Input| W| 1295
Compressor Thermal Protector| | KSD115°C HPC115/95U1
Throttling Method| | Electron expansion valve
Coding Operation Ambient Temperature Range| °C| -15-43
Heating Operation Ambient Temperature Range| °C| -15-24
Condenser Material| | Aluminum Fin-copper Tube
Condenser Pipe Diameter| mm| Φ7
Rows-Fin Gap(mm)| mm| 2-1.4
Coil length (L) X Height (H) X Coil width (W)| mm| 834×528×38.1
Fan Motor Speed (rpm) (HIM/L)| rpm| Coding: 800 / Heating: 860
Output of Fan Motor| W| 30
Fan Motor RLA| A| 0.4
Fan Motor Capacibr| pF| /
Air Flow Volume of Outdoor Unit| m3/h| 2300
Fan Type-Piece| | Axial-flow
Fan Diameter-Height| mm| 420-131.1
Defrosting Method| | Automatic Defrosting
Climate Type| | T1
Isolation| | I
Moisture Protection| | IPX4
Permissible Excessive Operating Pressure for the Discharge Side| MPa| 4.3
Permissible Excessive Operating Pressure for the Suction Side| MPa| 2.5
Dimension (WXDXH)| mm| 822x352x550
Dimension of Carton Box (LXWXH)| mm| 869x395x594
Dimension of Package (LXWXH)| mm| 872x398x620
Net Weight| k9| 32
Gross Weight| kg| 34.5
Refrigerant| | R32
Refrigerant Charge| kg| 0.9
Outdoor
Unit| Cross-sectional Area of Power Cable Conductor| mm2| 1.5
---|---|---|---
Recommended Power Cable(Core)| N| 3
Connection Pipe Connection Method| | Flare Connection
Not Additional Gas Connection Pipe Length| m| 10
Connection Pipe Gas Additional Charge| Wm| 20
Outer Diameter of Liquid Pipe1| inch| 1/4
Outer Diameter of Gas Pipe1| inch| 3/8
Outer Diameter of Liquid Pipe2| inch| 1/4
Outer Diameter of Gas Pipe2| inch| 3/8
Outer Diameter of Liquid Pipe3| inch| /
Outer Diameter of Gas Pipe3| inch| /
Outer Diameter of Liquid Pipe4| inch| /
Outer Diameter of Gas Pipe4| inch| /
Outer Diameter of Liquid Pipe5| inch| /
Outer Diameter of Gas Pipe5| inch| /
Connection Pipe Max. Height Distance (Indoor and Indoor)| m| 15
Max. equivalent connection pipe length| m| 20
Connection Pipe Max. Length Distance (total length)| m| 40

The above data is subject to change without notice; please refer to the nameplate of the unit.

Power
Supply| Rated Voltage| V-| 220-240
Rated Frequency| Hz| 50
Phases| | 1
Cooling Capadty| W| 6.1
Heating Capacity| W| 6.5
Cooling Power Input| W| 1.48
Heating Power Input| W| 1.43
Cooling Current Input| A| 6.57
Heating Current Input| A| 6.34
Rated Power Input| W| 2.9
Rated Current| A| 12.9
EER| W/N| 4.12
COP| W/N| 4.55
Outdoor
Unit| Compressor Trademark| | ZHUHAI LANDA COMPRESSOR CO., LTD.
Compressor Model| | FTz-SM151AXBD
Compressor Refrigerant Oil Type| | FW68DA or equivalent
Compressor Type| | Twin Rotary
L.R.A| A| 18
Compressor Rated Load Amp (RLA)| A| /
Compressor Power Input| W| 1330
Compressor Thermal Protector| | KSD115°C HPC115/95U1
Throttling Method| | Electron expansion valve
Coding Operation Ambient Temperature Range| °C| -15-43
Heating Operatbn Ambient Temperature Range| °C| -15-24
Condenser Material| | Aluminum Fin-copper Tube
Condenser Pipe Diameter| mm| 7
Rows-Fin Gap(mm)| mm| 2-1A
Coil length (L) X Height (H) X Col width (W)| mm| 851x616x38.1
Fan Motor Speed (rpm) (HIM/L)| rpm| Coding: 8501 Heating: 800
Output of Fan Motor| W| 60
Fan Motor RLA| A| 0.426
Fan Motor Capacitor| pF| /
Air Flow Volume of Outdoor Unit| m3Ih| 3800
Fan Type-Piece| | Axial-flow
Fan Diameter-Height| mm| 520-154
Defrosting Method| | Automatic Defrosling
Climate Type| | T1
Isolation| | I
Moisture Protection| | IPX4
Permissible Excessive Operating Pressure for the Discharge Side| MPa| 4.3
Permissible Excessive Operating Pressure for the Suction Side| MPa| 2.5
Dimension (WXDXH)| mm| 964×402460
Dimension of Carton Box (LXWXH)| mm| 1029x453x715
Dimension of Package (LXWXH)| mm| 1032x456x737
Net Weight| kg| 47.5
Gross Weight| kg| 52
Refrigerant| | R32
Refrigerant Charge| kg| 1.6
Outdoor
Unit| Cross-sectional Area of Power Cable Conductor| mm2| 2.5
---|---|---|---
Recommended Power Cable(Core)| N| 3
Connection Pipe Connection Method| | Flare Connection
Not Additional Gas Connection Pipe Length| m| 30
Connection Pipe Gas Additional Charge| girn| 20
Outer Diameter of Liquid Pipe1| inch| 1/4
Outer Diameter of Gas Pipe1| inch| 3/8
Outer Diameter of Liquid Pipe2| inch| 1/4
Outer Diameter of Gas Pipe2| inch| 3/8
Outer Diameter of Liquid Pipe3| inch| 1/4
Outer Diameter of Gas Pipe3| inch| 3/8
Outer Diameter of Liquid Pipe4| inch| /
Outer Diameter of Gas Pipe4| inch| /
Outer Diameter of Liquid PipeS| inch| /
Outer Diameter of Gas PipeS| inch| /
Connection Pipe Max. Height Distance (Indoor and Indoor)| m| 15
Max. equivalent connection pipe length| m| 20
Connection Pipe Max. Length Distance (total length)| m| 60

The above data is subject to change without notice; please refer to the nameplate of the unit.

Power
Supply| Rated Voltage| V-| 220-240
Rated Frequency| Hz| 50
Phases| | 1
Cooling Capacity| W| 7.1
Healing Capacity| W| 8.6
Cooling Power Input| W| 1.88
Heating Power Input| W| 2.23
Cooling Current Input| A| 8.34
Heating Current Input| A| 9.89
Rated Power Input| W| Cooling: 3.41 Heating: 3.0
Rated Current| A| Cooling: 15 / Heating: 14.6
EER| W/V| 3.78
COP| W/W| 3.86
Outdoor
Unit| Compressor Trademark| | ZHUHAI LANDA COMPRESSOR CO., LTD.
Compressor Model| | QXFS-M180zX170
Compressor Refrigerant Oil Type| | FW68DAor equivalent
Compressor Type| | Twin Rotary
L.R.A| A| 24
Compressor Rated Load Amp (RLA)| A| /
Compressor Power Input| W| 1480
Compressor Thermal Protector| | HPC115/95/KSD115°C
Throttling Method| | Electron expansion valve
Cooling Operation Ambient Temperature Range| °C| -15-43
Heating Operation Ambient Temperature Range| °C| -22-24
Condenser Material| | Aluminum Fin-copper Tube
Condenser Pipe Diameter| mm| 07
Rows-Fin Gap(mm)| mm| 2-1.4
Coil length (L) X Height (H) X Coil width (W)| mm| 851x616x38.1
Fan Motor Speed (rpm) (H/M/L)| rpm| Coding: 850 / Heating: 800
Output of Fan Motor| W| 60
Fan Motor RLA| A| 0.426
Fan Motor Capacibr| pF| /
Air Flow Volume of Outdoor Unit| m3/h| 3800
Fan Type-Piece| | Axial-flow
Fan Diameter-Height| mm| 520-154
Defrosting Method| | Aubmatic Defrosting
Climate Type| | T1
Isolation| | I
Moisture Protection| | 1PX4
Permissible Excessive Operating Pressure for the Discharge Side| MPa| 4.3
Permissible Excessive Operating Pressure for the Suction Side| MPa| 2.5
Dimension (WXDXH)| mm| 964x402x660
Dimension of Carton Box (LXWXH)| mm| 1029x453x715
Dimension of Package (LXVVXH)| mm| 1032x456x737
Net Weight| kg| 47.5
Gross Weight| kg| 52
Refrigerant| | R32
Refrigerant Charge| kg| 1.7
Outdoor
Unit| Cross-sectional Area of Power Cable Conductor| mm2| 2.5
---|---|---|---
Recommended Power Cable(Core)| N| 3
Connection Pipe Connection Method| | Flare Connection
Not Additional Gas Connection Pipe Length| m| 30
Connection Pipe Gas Additional Charge| 9ffil| 20
Outer Diameter of Liquid Pipe1| inch| 1/4
Outer Diameter of Gas Pipe1| inch| 3/8
Outer Diameter of Liquid Pipe2| inch| 1/4
Outer Diameter of Gas Pipe2| inch| 3/8
Outer Diameter of Liquid Pipe3| inch| 1/4
Outer Diameter of Gas Pipe3| inch| 3/8
Outer Diameter of Liquid Pipe4| inch| /
Outer Diameter of Gas Pipe4| inch| /
Outer Diameter of Liquid PipeS| inch| /
Outer Diameter of Gas PipeS| inch| /
Connection Pipe Max. Height Distance (Indoor and Indoor)| m| 15
Max. equivalent connection pipe length| m| 20
Connection Pipe Max. Length Distance (total length)| m| 60

The above data is subject to change without notice; please refer to the nameplate of the unit.

Power
Supply| Rated Voltage| V-| 220-240
Rated Frequency| Hz| 50
Phases| | 1
Cooling Capadty| W| 8
Heathg Capacity| W| 9.5
Cooling Power Input| W| 2.12
Heating Power Input| W| 2.2
Cooling Current Input| A| 9.41
Heating Current Input| A| 9.76
Rated Power Input| W| 3.6
Rated Current| A| 15.97
EER| W/V| 3.77
COP| W/V| 4.32
Outdoor
Unit| Compressor Trademark| | ZHUHAI LANDA COMPRESSOR CO., LTD.
Compressor Model| | QXFS-B212zX070
Compressor Refrigerant Oil Type| | FW68DAor equivalent
Compressor Type| | Twin Rotary
L.R.A| A| 35
Compressor Rated Load Amp (RLA)| A| /
Compressor Power Input| W| 1887
Compressor Thermal Protecbr| | KSD115°C HPC115/95U1
Throttling Method| | Electron expansion valve
Cooling Operation Ambient Temperature Range| °C| -15-43
Heating Operation Ambient Temperature Range| °C| -15-24
Condenser Material| | Aluminum Fin-copper Tube
Condenser Pipe Diameter| mm| 07.94
Rows-Fin Gap(mm)| mm| 2-1.4
Coil length (L) X Height (H) X Col width (W)| mm| 851x616x38.1
Fan Mobr Speed (rpm) (HIM/L)| rpm| Cooling: 8501 Heating: 800
Output of Fan Mobr| W| 60
Fan Mobr RLA| A| 0.426
Fan Mobr Capacitor| pF| /
Air Flow Volume of Outdoor Unit| eiti| 3800
Fan Type-Piece| | Axial-flow
Fan Diameter-Height| mm| 520-154
Defrosting Method| | Aubmatic Defrosling
Climate Type| | T1
Isolation| | I
Moisture Protection| | IPX4
Permissible Excessive Operating Pressure for the Discharge Side| MPa| 4.3
Permissible Excessive Operating Pressure for the Suction Side| MPa| 2.5
Dimension (WXDXH)| mm| 964x402x660
Dimension of Carton Box (LXINXH)| mm| 1029x453x715
Dimension of Package (LXWXH)| mm| 1032x456x737
Net Weight| kg| 51
Gross Weight| kg| 55.5
Refrigerant| | R32
Refrigerant Charge| kg| 1.8
Outdoor
Unit| Cross-sectional Area of Power Cable Conductor| mm2| 2.5
---|---|---|---
Recommended Power Cable(Core)| N| 3
Connection Pipe Connection Method| | Flare Connection
NotAdditional Gas Connection Pipe Length| m| 40
Connection Pipe Gas Additional Charge| Wm| 20
Outer Diameter of Liquid Flpe1| inch| 114
Outer Diameter of Gas Pipe1| Inch| 318
Outer Diameter of Liquid Pipe2| Inch| 114
Outer Diameter of Gas Pipe2| inch| 3/8
Outer Diameter of Liquid Plpe3| Inch| 114
Outer Diameter of Gas Pipe3| Inch| 318
Outer Diameter of Liquid Pipe4| Inch| 114
Outer Diameter of Gas Pipe4| inch| 318
Outer Diameter of Liquid Pipe5| inch| /
Outer Diameter of Gas Pipe5| Inch| /
Connection Pipe Max. Height Distance (Indoor and Indoor)| m| 15
Max. equivalent connection pipe length| m| 20
Connection Pipe Max. Length Distance (total length)| m| 70

The above data is subject to change without notice; please refer to the nameplate of the unit.
Specifications

Power
Supply| Rated Voltage| V-| 220-240
Rated Frequency| Hz| 50
Phases| | 1
Cooling Capadty| W| 12.1
Heathg Capacity| W| 13
Cooling Power Input| W| 3.4
Heating Power Input| W| 3.19
Cooling Current Input| A| 15.08
Heating Current Input| A| 14.15
Rated Power Input| W| Coolhg: 4.6/ Heating: 5.0
Rated Current| A| Cooling: 20.41 / Fleeting: 21.74
EER| W/N| 3.56
COP| W/V| 4.08
Outdoor
Unit| Compressor Trademark| | ZHUHAI LANDA COMPRESSOR CO., LTD.
Compressor Model| | QXFS-D280zX070C
Compressor Refrigerant Oil Type| | FW68DA or equivalent
Compressor Type| | Twin Rotary
L.RA| A| 40
Compressor Rated Load Amp (RLA)| A| /
Compressor Power Input| W| 2294
Compressor Thermal Protector| | KSD115°C HPC115/95U1
Throttling Method| | Electron expansion valve
Cooling Operation Ambient Temperature Range| °C| -15-43
Heating Operation Ambient Temperature Range| °C| -15-24
Condenser Material| | Aluminum Fin-copper Tube
Condenser Pipe Diameter| mm| v7.94
Rows-Fin Gap(mm)| mm| 2-1A
Coil length (L) X Height (H) X Col width (W)| mm| 10e8×792×38.1
Fan Motor Speed (rpm) (HIM/L)| rpm| Cooling: 800/ Heating: 860
Output of Fan Motor| W| 130
Fan Motor RLA| A| /
Fan Motor Capacitor| IF| /
Air Flow Volume of Outdoor Unit| m3Ih| 5800
Fan Type-Piece| | Axial-flow
Fan Diameter-Height| mm| 550-205
Defrosting Method| | Aubmatic Defrosling
Climate Type| | T1
Isolation| | I
Moisture Protection| | IPX4
Permissible Excessive Operating Pressure for the Discharge Side| MPa| 4.3
Permissible Excessive Operating Pressure for the Suction Side| MPa| 2.5
Dimension (WXDXH)| mm| 1020×427×826
Dimension of Carton Box (LXIAO(H)| mm| 1090x494x870
Dimension of Package (LXWXH)| mm| 1093x497x885
Net Weight| kg| 73
Gross Weight| kg| 80
Refrigerant| | R32
Refrigerant Charge| kg| 2A
Outdoor
Unit| Cross-sectional Area of Power Cable Conductor| mm2| 4
---|---|---|---
Recommended Power Cable(Core)| N| 3
Connection Pipe Connection Method| | Flare Connection
Not Additional Gas Connection Pipe Length| m| 50
Connection Pipe Gas Additional Charge| g/m| 20
Outer Diameter of Liquid Pipe1| inch| 1/4
Outer Diameter of Gas Pipe1| inch| 3/8
Outer Diameter of Liquid Pipe2| inch| 1/4
Outer Diameter of Gas Pipe2| inch| 3/8
Outer Diameter of Liquid Pipe3| inch| 1/4
Outer Diameter of Gas Pipe3| inch| 3/8
Outer Diameter of Liquid Pipe4| inch| 1/4
Outer Diameter of Gas Pipe4| inch| 3/8
Outer Diameter of Liquid PipeS| inch| 1/4
Outer Diameter of Gas Pipe5| inch| 3/8
Connection Pipe Max. Height Distance (Indoor and Indoor)| m| 25
Max. equivalent connection pipe length| m| 25
Connection Pipe Max. Length Distance (total length)| m| 100

The above data is subject to change without notice; please refer to the nameplate of the unit.

Outline Dimension Diagram

ZDAE-5130-09M25

Refrigerant System Diagram

A1: A-unit electronic expansion valve
B1: B-unit electronic expansion valve
A2: A-unit gas pipe temperature sensor
B2: B-unit gas pipe temperature sensor
A3: A-unit liquid pipe temperature sensor
B3: B-unit liquid pipe temperature sensor A1: A- unit electronic expansion valve
B1: B -unit electronic expansion valve
C1: C -unit electronic expansion valve
A2: A -unit gas pipe temperature sensor
B2: B -unit gas pipe temperature sensor
C2: C -unit gas pipe temperature sensor
A3: A -unit liquid pipe temperature sensor
B3: B- unit liquid pipe temperature sensor
C3: C -unit liquid pipe temperature sensor A1: A-unit electronic expansion valve
B1: B-unit electronic expansion valve
C1: C-unit electronic expansion valve
D1: D-unit electronic expansion valve
A2: A-unit gas pipe temperature sensor
B2: B-unit gas pipe temperature sensor
C2: C-unit gas pipe temperature sensor
D2: D-unit gas pipe temperature sensor
A3: A-unit liquid pipe temperature sensor
B3: B-unit liquid pipe temperature sensor
C3: C-unit liquid pipe temperature sensor
D3: D-unit liquid pipe temperature sensorA1: A-unit electronic expansion valve
B1: B-unit electronic expansion valve
C1: C-unit electronic expansion valve
D1: D-unit electronic expansion valve
E1: E-unit electronic expansion valve
A2: A-unit gas pipe temperature sensor
B2: B-unit gas pipe temperature sensor
C2: C-unit gas pipe temperature sensor
D2: D-unit gas pipe temperature sensor
E2: E-unit gas pipe temperature sensor
A3: A-unit liquid pipe temperature sensor
B3: B-unit liquid pipe temperature sensor
C3: C-unit liquid pipe temperature sensor
D3: D-unit liquid pipe temperature sensor
E3: E-unit liquid pipe temperature sensor

Electrical Part

5.1 Wiring Diagram
●Instruction

● Outdoor Unit
ZDAE-2040-09M25 ZDAE-2040-09M25These wiring diagrams are subject to change without notice; please refer to the one supplied with the unit.
5.2 PCB Printed Diagram

Function and Control

1 Basic functions of the system
1.1 Cooling Mode
1.1.1 Cooling conditions and process:
If the compressor is in stop status and start the unit for cooling operation, when one of the indoor units reaches the cooling operation condition, the unit start cooling operation; in this case, the electronic expansion valve, the outdoor fan and the compressor start operation.
1.1.2 Stop in cooling operation
1.1.2.1 Compressor stops
The compressor stops immediately, the outdoor fan stops after 1min.
1.1.2.2 Some of the indoor units reach the stop condition (the compressor does not stop)
The compressor operates immediately according to the required frequency. For the indoor unit with no requirement, the corresponding electronic expansion valve is closed to OP.
1.1.3 Cooling mode transfers to heating mode When the unit transfers to heating mode, the 4-way valve is energized after the compressor stops for 2min. The other disposals are the same as stopping in cooling mode.
1.1.4 4-way valve: in this mode, the 4-way valve is closed.
1.1.5 Outdoor fan control in cooling mode
The outdoor fan starts before 5s of the starting of compressor.
The outdoor fan will run in high speed for 3min after starting and then it will run in set speed. The fan shall run at every speed for at least 80s. (When the quantity of running indoor unit is changed, the unit will enter the control described in 1.3.5.1 and 1.3.5.2);
When the compressor stops, the outdoor fan runs at present speed and stops after 1min.
1.2 Dry Mode
1.2.1 The dry conditions and process are the same as those in cooling mode;
1.2.2 The status of 4-way valve: closed;
1.2.3 The temperature setting range: 16 ~ 30 oC;
1.2.4 Protection function: the same as those in cooling mode;
1.2.5 In dry mode, the maximum value A of the capacity requirement percentage o f single unit is 90% of that in cooling mode.
The open condition of the electronic expansion valve, outdoor fan and compressor is the same as those in cooling mode.
1.3 Heating Mode
1.3.1 Heating conditions and process:
When one of the indoor units reaches the heating operation condition, the unit starts heating operation.
1.3.2 Stop in heating operation:
1.3.2.1 When all the indoor units reach the stop condition, the compressor stops and the outdoor fan stops after 1min;
1.3.2.2 Some of the indoor units reach the stop condition
The compressor reduces the frequency immediately and operates according to the required frequency;
1.3.2.3 Heating mode transfers to cooling mode(dry mode), fan mode
a. The compressor stops; b. the power of 4-way valve is cut off after 2min; c. the outdoor fan stops after 1min; d. the status of 4-way valve: energized;
1.3.3 Outdoor fan control in heating mode
The outdoor fan starts before 5s of the starting of compressor and then it will run in high speed for 40s;
The fan shall run at every speed for at least 80s;
When the compressor stops, the outdoor fan stops after 1min.
1.3.4 Defrosting function
When the defrosting condition is met, the compressor stops;
the electronic expansion valve of all indoor units open in big angle; the outdoor fan stops after 40s of the stop of compressor, meanwhile, the 4-way valve reverses the direction; after the 4-way valve reverses the direction, the compressor starts; then begin to
calculate the time of defrosting, the frequency of the compressor rises to reach the defrosting frequency.
1.3.5 Oil-returned control in heating mode
1.3.5.1 Oil-returned condition
The whole unit is operating in low frequency for a long time.
1.3.5.2 Oil-returned process in heating mode
The indoor unit displays “H1”.
1.3.5.3 Oil-returned finished condition in heating mode
The duration reaches 5min.
1.4 Fan Mode
The compressor, the outdoor fan and the 4-way valve are closed; temperature setting range is 16 ~ 30oC.
2 Protection Function
2.1 Mode Conflict Protection of indoor unit
When the setting mode is different of different indoor unit, the unit runs in below status:
a. The mode of the first operating indoor unit is the basic mode, then compare the mode of the other indoor units to see if there is a conflict. Cooling mode (dry mode) is in conflict with heating mode.
b. Fan mode is in conflict with heating mode and the heating mode is the basic mode. No matter which indoor unit operates first, the unit will run in heating mode.
2.2 Overload protection function
When the tube temperature is a little low, the compressor raises the operation frequency; when the tube temperature is a little high, the compressor frequency is restricted or lows down the operation frequency; when the tube temperature is too high, the compressor protection stops running.
If the discharge temperature protection continuously appears for 6 times, the compressor can’t resume running. The compressor can resume running after cutting off the power and then putting through the power. (if the running time of the compressor is longer than 7min, the protection times record will be cleared)
2.3 Discharge Protection Function
When the discharge temperature is a little low, the compressor raises the operation frequency; when the discharge temperature is a little high, the compressor frequency is restricted or lows down the operation frequency; when the discharge temperature is too high, the compressor protection stops running.
If the discharge temperature protection continuously appears for 6 times, the compressor can’t resume running. The compressor can resume running after cutting off the power and then putting through the power. (if the running time of the compressor is longer than 7min, the protection times record will be cleared.)
2.4 Communication malfunction
Detection of the quantity of installed indoor units:
After 3min of energizing, if the outdoor unit does not receive the communication data of certain indoor unit, the outdoor unit will judge that indoor unit is not installed and will treat it as it is not installed. If the outdoor unit receives the communication data of
that indoor unit later, the outdoor unit will treat that unit as it is installed.
2.5 Overcurrent Protection
a.. Overcurrent protection of complete unit; b. phase wire curre protection; c. compressor phase current protection
2.6 Compressor high-pressure protection
2.6.1 When the high-pressure switch is detected cut off for 3s continuously, the compressor will enter high-pressure protection as it stops when reaching set temperature. Meanwhile, the outdoor unit will send the signal of “high- pressure protection” to the indoor units;
2.6.2 After the appearance of high-pressure protection, when the high-pressure switch is detected closed for 6s continuously, the compressor can resume running only after cutting off the power and then putting through the power.
2.7 Compressor overload protection
If the compressor overload switch is detected having movement, the indoor unit will display the corresponding malfunction as it stops when the indoor temperature reaching set temperature.
When the compressor stops for more than 3min and the compressor overload switch is reset, the unit will resume operation status automatically. If the protection appears for more than 6 times (if the running time of the compressor is longer than 30min, the protection times record will be cleared), the unit can not resume operation status automatically, but can resume running only after cutting off the power and then putting through  the power.
2.8 Compressor Phase-lacking Protection
When the compressor starts, if one of the three phases is detected open, the compressor will enter phase-lacking protection. The malfunction will be cleared after 1min, the unit will restart and then detect if there is still has phase-lacking protection. If the phase-lacking protection is detected for 6 times continuously, the compressor will not restart but can resume running only after cutting off the power and then putting through the power. If the running time of the compressor is longer than 7min, the protection times record will be cleared.
2.9 IPM Protection
2.9.1 When the IPM module protection is detected, the unit will stop as the indoor temperature reaching set temperature, PFC is closed, display IPM protection malfunction. After the compressor stops for 3min, the unit will resume operation status automatically; if the IPM protection is detected for more than 6 times continuously (If the running time of the compressor is longer than 7min, the protection times record will be cleared), the system will stop and send the signal of module protection to indoor unit. The unit can not resume operation status automatically, but can resume running only after cutting off the power and then putting through the power.
2.9.2 IPM module overheating protection
2.9.2.1 When TIPM>85 oC, prohibit to raise frequency;
2.9.2.2 When TIPM>=90 oC, the operation frequency of compressor lows down by 15% every 90s according to the present capacity requirement of the complete unit. It will keep 90s after lowing down the frequency. After lowing down the frequency, if TIPM>=90 oC, the unit will circulate the above movement until reaching the minimum frequency; if 85 oC<TIPM<90 C, the unit will run at this frequency; when TIPM 85 oC, the unit will run at the frequency according to the capacity requirement;
2.9.2.3 When TIPM>=95 oC, the compressor stops. After the compressor stops for 3min, if TIPM<85 oC, the compressor and the outdoor fan will resume operation.

Notes for Installation and Maintenan

Safety Precautions: Important!
Please read the safety precautions carefully before installation and maintenance.
The following contents are very important for installation and maintenance.
Please follow the instructions below.

• The installation or maintenance must accord with the instructions.
• Comply with all national electrical codes and local electrical codes.
• Pay attention to the warnings and cautions in this manual.
• ●All installation and maintenance shall be performed by distributor or qualified person.
• All electric work must be performed by a licensed technician according to local regulations and the instructions given in this manual.
• Be caution during installation and maintenance. Prohibit incorrect operation to prevent electric shock, casualty and other accidents.

Warnings
Electrical Safety Precautions:

1. Cut off the power supply of air conditioner before checking and maintenance.
2.  The air condition must apply specialized circuit and prohibit share the same circuit with other appliances.
3. The air conditioner should be installed in suitable location and ensure the power plug is touchable.
4. Make sure each wiring terminal is connected firmly during installation and maintenance.
5. Have the unit adequately grounded. The grounding wire can’t be used for other purposes.
6. Must apply protective accessories such as protective boards, cable-cross loop and wire clip.
7. The live wire, neutral wire and grounding wire of power supply must be corresponding to the live wire, neutral wire and grounding wire of the air conditioner.
8. The power cord and power connection wires can’t be pressed by hard objects.
9. If power cord or connection wire is broken, it must be replaced by a qualified person.
10. If the power cord or connection wire is not long enough, please get the specialized power cord or connection wire from the manufacture or distributor. Prohibit prolong the wire by yourself.
11. For the air conditioner without plug, an air switch must be installed in the circuit. The air switch should be all-pole parting and the contact parting distance should be more than 3m.
12. Make sure all wires and pipes are connected properly and the valves are opened before energizing.
13. Check if there is electric leakage on the unit body. If yes, please eliminate the electric leakage.
14. Replace the fuse with a new one of the same specification if it is burnt down; don’t replace it with a cooper wire or conducting wire.
15. If the unit is to be installed in a humid place, the circuit breaker must be installed.

Installation Safety Precautions:

1. Select the installation location according to the requirement of this manual.(See the requirements in installation part)
2. Handle unit transportation with care; the unit should not be carried by only one person if it is more than 20kg.
3. When installing the indoor unit and outdoor unit, a sufficient fixing bolt must be installed; make sure the installation support is firm.
4. are safety belt if the height of working is above 2m.
5. Use equipped components or appointed components during installation.
6. Mak sure no foreign objects are left in the unit after finishing installation.

Refrigerant Safety Precautions:
When refrigerant leaks or requires discharge during installation, maintenance, or disassembly, it should be handled by certified professionals or otherwise in compliance with local laws and regulations.

1. Avoid contact between refrigerant and fire as it generates poisonous gas; Prohibit prolong the connection pipe by welding.
2. Apply specified refrigerant only. Never have it mixed with any other refrigerant. Never have air remain in the refrigerant line as it may lead to rupture or other hazards.
3. Make sure no refrigerant gas is leaking out when installation is completed.
4. If there is refrigerant leakage, please take sufficient measure to minimize the density of refrigerant.
5. Never touch the refrigerant piping or compressor without wearing glove to avoid scald or frostbite.
   Improper installation may lead to fire hazard, explosion, electric shock or injury.

Safety Precautions for Installing and Relocating the Unit:
To ensure safety, please be mindful of the following precautions.
WARNINGS

1. When installing or relocating the unit, be sure to keep the refrigerant circuit free from air or substances other than the specified refrigerant.
   Any presence of air or other foreign substance in the refrigerant circuit will cause system pressure rise or compressor rupture, resulting in injury.

2. When installing or moving this unit, do not charge the refrigerant which is not comply with that on the nameplate or unqualified refrigerant.
   Otherwise, it may cause abnormal operation, wrong action, mechanical malfunction or even series safety accident.

3. When refrigerant needs to be recovered during relocating or repairing the unit, be sure that the unit is running in cooling mode.Then, fully close the valve at high pressure side (liquid valve).About 30-40 seconds later, fully close the valve at low pressure side (gas valve), immediately stop the unit and disconnect power.
   Please note that the time for refrigerant recovery should not exceed 1 minute.
   If refrigerant recovery takes too much time, air may be sucked in and cause pressure rise or compressor rupture, resulting in injury.

4. During refrigerant recovery, make sure that liquid valve and gas valve are fully closed and power is disconnected before detaching the connection pipe.
   If compressor starts running when stop valve is open and connection pipe is not yet connected, air will be sucked in and cause pressure rise or compressor rupture, resulting in injury.

5. When installing the unit, make sure that connection pipe is securely connected before the compressor starts running.
   If compressor starts running when stop valve is open and connection pipe is not yet connected, air will be sucked in and cause pressure rise or compressor rupture, resulting in injury.

6. Prohibit installing the unit at the place where there may be leaked corrosive gas or flammable gas.
   If there leaked gas around the unit, it may cause explosion and other accidents.

7. Do not use extension cords for electrical connections.
   If the electric wire is not long enough, please contact a local service center authorized and ask for a proper electric wire. Poor connections may lead to electric shock or fire.

8. Use the specified types of wires for electrical connections between the indoor and outdoor units.
   Firmly clamp the wires so that their terminals receive no external stresses.
   Electric wires with insufficient capacity, wrong wire connections and insecure wire terminals may cause electric shock or fire.

Safety Precautions for Refrigerant

• To realize the function of the air conditioner unit, a special refrigerant circulates in the system. The used refrigerant is the fluoride R32, which is specially cleaned. The refrigerant is flammable and inodorous. Furthermore, it can leads to explosion under certain conditions. But the flammability of the refrigerant is very low. It can be ignited only by fire.
• Compared to common refrigerants, R32 is a nonpolluting refrigerant with no harm to the ozonosphere. The influence upon the greenhouse effect is also lower. R32 has got very good thermodynamic features which lead to a really high energy efficiency. The units therefore need a less filling.

WARNING:

• Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacture. Should repair be necessary, contact your nearest authorized Service Centre. Any repairs carried out by unqualified personnel may be dangerous. The appliance shall be stored in a room without continuously operating ignition sources. (For example: open flames, an operating gas appliance or an operating electric heater.)
• Do not pierce or burn.
• Appliance shall be installed, operated and stored in a room with a floor area larger than Xm 2.
• Appliance filled with flammable gas R32. For repairs, strictly follow manufacturers instructions only. Be aware that refrigrants not contain odour.
• Read specialists manual.

Safety Operation of Flammable Refrigerant
Qualification requirement for installation and maintenance man

• All the work men who are engaging in the refrigeration system should bear the valid certification awarded by the authoritative organization and the qualification for dealing with the refrigeration system recognized by this industry. If it needs other technician to maintain and repair the appliance, they should be supervised by the person who bears the qualification for using the flammable refrigerant.
• It can only be repaired by the method suggested by the equipments manufacturer.

Installation notes

• The air conditioner is not allowed to use in a room that has running fire (such as fire source,working coal gas ware, operating heater).
• It is not allowed to drill hole or burn the connection pipe.
• The air conditioner must be installed in a room that is larger than the minimum room area.

The minimum room area is shown on the nameplate or following table a.

• Leak test is a must after installation. table a – Minimum room area (m2)

enarge amount (kg)

| floor location| window mounted| wall mounted|

ceiling mounted

---|---|---|---|---
1.2| /| /| /| /
1.3| 14.5| 5.2| 1.6| 1.1
1.4| 16.8| 6.1| 1.9| 1.3
1.5| 19.3| 7| 2.1| 1.4
1.6| 22| 7.9| 2.4| 1.6
1.7| 24.8| 8.9| 2.8| 1.8
1.8| 27.8| 10| 3.1| 2.1
1.9| 31| 11.2| 3.4| 2.3
2| 34.3| 12.4| 3.8| 2.6
2.1| 37.8| 13.6| 4.2| 2.8
2.2| 41.5| 15| 4.6| 3.1
2.3| 45.4| 16.3| 5| 3.4
2.4| 49.4| 17.8| 5.5| 3.7
2.5| 53.6| 19.3| 6| 4

Maintenance notes

• Check whether the maintenance area or the room area meet the requirement of the nameplate.
  — Its only allowed to be operated in the rooms that meet the requirement of the nameplate.

• Check whether the maintenance area is well-ventilated.
  — The continuous ventilation status should be kept during the operation process.

• Check whether there is fire source or potential fire source in the maintenance area.
  — The naked flame is prohibited in the maintenance area; and the “no smoking” warning board should be hanged.

• Check whether the appliance mark is in good condition.
  — Replace the vague or damaged warning mark.

Welding

• If you should cut or weld the refrigerant system pipes in the process of maintaining, please follow the steps as below:
  a. Shut down the unit and cut power supply
  b. Eliminate the refrigerant
  c. Vacuuming
  d. Clean it with N2 gas
  e. Cutting or welding
  f. Carry back to the service spot for welding

• Make sure that there isn’t any naked flame near the outlet of the vacuum pump and its well-ventilated.

• The refrigerant should be recycled into the specialized storage tank.

Filling the refrigerant

• Use the refrigerant filling appliances specialized for R32. Make sure that different kinds of refrigerant won’t contaminate with each other.
• The refrigerant tank should be kept upright at the time of filling refrigerant.
• Stick the label on the system after filling is finished (or havent finished).
• Don’t overfilling.
• After filling is finished, please do the leakage detection before test running; another time of leak detection should be done when its removed.

Safety instructions for transportation and storage

• Please use the flammable gas detector to check before unload and open the container.
• No fire source and smoking.
• According to the local rules and laws.

Main Tools for Installation and Maintenance

Installation

Installation Procedures Note: this flow is only for reference; please find the more detailed installation steps in this section.

8.1 Electrical Connections

1. Remove the handle at the right side plate of the outdoor unit (one screw).

2. Remove the cable clamp, connect the power connection cable with the terminal at the row of connection and fix the connection.
   The fitting line distributing must be consistent with the indoor unit. terminal of line bank. Wiring should meet that of indoor unit.

3. Fix power connection wire by wire clamp.

4. Ensure wire has been fixed well.

5. Install the handle.
   Including an air switch with suitable capacity,please note the following table. Air switch should be included magnet buckle and heating buckle function, it can protect the circuit-short and overload. (Caution: please do not use the fuse only for protect the circuit)

ZDAE-2040-09M25
ZDAE-2050-09M25| 16A
ZDAE-3060-09M25
ZDAE-3070-09M25
ZDAE-4080-09M25| 25A
ZDAE-5130-09M25| 25A

An all-pole disconnection switch having a contact separation of at least 3mm in all pole should be connected in fixed wiring.
Wrong wire connection may cause malfunction of some electric components. After fixing cable, ensure that leads between connection to fixed point have some space.
For 2040/2050, the connection pipes and the connectiong wirings of the unit A, unit B must be corresponding to each other respective.
For 3060/3070, the connection pipes and the connectiong wirings of the unit A, unit B, unit C must be corresponding to each other respective.
For 4080, the connection pipes and the connectiong wirings of the unit A, unit B, unit C, unit D must be corresponding to each other respective.
For 5130, the connection pipes and the connectiong wirings of the unit A, unit B, unit C, unit D, unit E must be corresponding to each other respective.
** The appliance shall be installed in accordance with national wiring regulations.
Note: the above figures are only intended to be a simple diagram of the appliance and may not correspond to the appearance of the units that have been purchased. 8.2 Installing the Outdoor Unit
** Use bolts to secure the unit to a flat, solid floor.
When mounting the unit on a wall or the roof, make sure the support is firmly secured so that it cannot move in the event of intense vibrations or a strong wind.
Do not install the outdoor unit in pits or air vents.
Installing the pipes
**** Use suitable connecting pipes and equipment for the refrigerant R32.

Models(m)| 2040
2050| 3060
3070| 4080| 5130
---|---|---|---|---
Max. connection pipe length| 40| 60| 70| 100
Max. connection pipe length
(Simpleone indoor unit)| 20| 20| 20| 25

The sum of the capacity codes of the indoor units should be among 50%-150% of that of the outdoor unit.
The refrigerant pipes must not exceed the maximum heights 5m.
Wrap all the refrigerant pipes and joints.
** Tighten the connections using two wrenches working in  opposite directions.
Caution: Installation Must be Performed in Accordance with the NEC/CEC by Authorized Personnel Only.**
Humid air left inside the refrigerant circuit can cause compressor malfunction. After having connected the indoor and outdoor u bleed the air and humidity from the refrigerant circuit using a vacuum pump.

1. Unscrew and remove the caps from the 2-way and 3-way valves.
2. Unscrew and remove the cap from the service valve.
3. Connect the vacuum pump hose to the service valve.
4. Operate the vacuum pump for 10-15 minutes until an absolute vacuum of 10 mm Hg has been reached.
5. With the vacuum pump still in operation, close the low-pressure knob on the vacuum pump coupling. Stop the vacuum pump.
6. Open the 2-way valve by 1/4 turn and then close it after 10 seconds. Check all the joints for leaks using liquid soap or an electronic leak device.
7. Turn the body of the 2-way and 3-way valves. Disconnect the vacuum pump hose.
8. Replace and tighten all the caps on the valves.
   Piping size (inch)| Twisting moment (N·m)
   ---|---
   Φ1/4| 60-65
   Φ3/8| 45-50
   Φ1/2| 70-75
   Φ5/8| 15-20
   Φ3/4| 35-40
9. If the specification of outdoor unit gas valve is 3/8″,but curstomer needs to install 1/2″ indoor unit so that it is need to use a “pipe joint subassembly” (Code 06643008) to make a conversion joint with outdoor unit gas valve and connection pipe, as show in following.

Install the drain fitting and the drain hose(for model with heat pump only)
Condensation is produced and flows from the outdoor unit when the appliance is operating in the heating mode. In order not to disturb neighbours and to respect the environment, install a dra fitting and a drain hose to channel the condensate water. Install the drain fitting and rubber washer on the outdoor unit chassis and connect a drain hose to it as shown in the figure. 8.3 Installation Dimension Diagram
Use suitable instruments for the refrigerant R32.
Do not use any other refrigerant than R32.
**** Do not use mineral oils to clean the unit.

The installation must be done by trained and qualified service personnel with reliability according to this manual.
Contact service center before installation to avoid the malfunction due to unprofessional installation.
When picking up and moving the units, you must be guidedby trained and qualified person.
Ensure that the recommende dspace is left 8.4 Check after Installation

effect
Is the thermal insulation of the unit sufficient?| May cause condensation and water dropping
Is the drainage smooth?| May cause condensation and water dropping
Does the power supply voltage accord with the rated voltage specified on the nameplate?| The unit may bread down or the components may be burned out
Are the lines and pipelines correctly installed?| The unit may bread down or the components may be burned out
Has the unit been safely grounded?| Risk of electrical leakage
Are the models of lines in conformity with requirements?| The unit may bread down or the components may be burned out
Are there any obstacles near the air inlet and outlet of the indoor and outdoor units?| The unit may bread down or the components may be burned out
Have the length of refrigerating pipe and refrigerant charge amount been recorded?| It is not easy to decide the charge amount of refrigerant.

Maintenance

9.1 Precautions before Performing Inspection or Repair
There are high-capacity electrolytic capacitors on the outdoor mainboard. Thus, even the power is cut off, there is high voltage inside the capacitors and it needs more than 20min to reduce the voltage to safety value. Touching the electrolytic capacitor within
20min after cutting the power will cause electric shock. If maintenance is needed, follow the steps below to discharge electricity of electrolytic capacitor after power off.

1. Open the top cover of outdoor unit and then remove the cover of electric box cover.
2. As shown in the fig below, connect the plug of discharge resistance (about 100ohm, 20W) (if there is no discharge resistance, you can use the plug of soldering iron) to point A and B of electrolytic capacitor. There will be sparks when touching them. Press them forcibly for 30s to discharge electricity of electrolytic capacitor. 
3. After finish discharging electricity, measure the voltage between point A and B with universal meter to make sure if electricity discharging is completed, in order to prevent electric shock. If the voltage between the two points is below 20V, you can perform maintenance safely.

9.2 Flashing LED of Indoor/Outdoor Unit and Primary Judgement

1. Requirement of malfunction display
   When severalmalfunctions happen at the same time, malfunction codes will be displaye d circularly.

2. Malfunction display method

3. Hardware malfunction: it will be displayed immediately,please refer to “Malfunction status sheet”;

4. Operation status: it will be displayed immediately, please refer to “Malfunction status sheet”;

5. Other malfunction: It will be displayedafter the compressor has been stopped for 200s, please refer to “Malfunction status sheet”.
   (Note: when the compressor starts up again, malfunction displaywaiting time (200s) will be cleared.)

6. Malfunction display control
   Indoor unit displays malfunction code as shown in the sheet below. ODU communication lightwillbeoff for 1s and then blink for 1s circularly.

Malfunction status sheet

Malfunction name| Malfunction type| Nixie tube
Zero cross detection circuit malfunction| Hardware malfunction| U8
Malfunction protection of jumper cap| Hardware malfunction| C5
Feedback of without DU motor| Hardware malfunction| H6
Indoor ambient temperature sensor is open/short circuited| Hardware malfunction| F1
Indoor evaporator temperature sensor is open/short circuited| Hardware malfunction| F2
Liquid valve temperature sensor is open/short circuited| Hardware malfunction| b5
Gas valve temperature sensor is open/short circuited| Hardware malfunction| b7
Modular temperature sensor is open/short circuited| Hardware malfunction| P7
Outdoor ambient temperature sensor is open/short circuited| Hardware malfunction| F3
Outdoor condenser middle pipe temperature sensor is open/short circuited| Hardware malfunction| F4
Outdoor discharge temperature sensor is open/shortcircuited| Hardware malfunction| F5
Communication malfunction| Hardware malfunction| E6
Malfunction of phase current detection circuit for compressor| Hardware malfunction| U1
Compressor demagnetization protection| Viewing malfunction code through remote controller within 200s; displayed directly on
nixietube after 200s| HE
Malfunction of voltage dropping for DC bus-bar| U3
Module high temperature protection| P8
Refrigerant lacking or blockage protection of system (not available for residential ODU)| FO
Charging malfunction of capacitor| Hardware malfunction| PU
High pressure protection of system| Hardware malfunction| El
Low pressure protection of system (reserved)| Hardware malfunction| E3
Compressor overload protection| Viewing malfunction code through remote controller within 200s; displayed directly on
nixietube after 200s| H3
---|---|---
Indoor unit and outdoor unit do not match| Hardware malfunction| LP
Malfunction of memory chip| Hardware malfunction| EE
Wrong connection of communication wire or malfunction of electronic expansion valve| Hardware malfunction| do
Malfunction of complete units current detection| Hardware malfunction| U5
Malfunction protection of outdoor fan 1| Hardware malfunction| L3
Detection status of wrong connection of communication wire or malfunction of electronic expansion valve| Operation status| dd
Mode conflict| Operation status| E7
Refrigerant recycling mode| Operation status| Fo
X-fan| Operation status| AL
Defrosting or oil return in heating mode| Operation status| H1
Start failure of compressor| Viewing malfunction code through remote controller within 200s; displayed directly on
nixietube after 200s| Lc
High discharge temperature protection of compressor| E4
Overload protection| E8
Whole unit overcurrent protection| E5
Compressor phase current protection| P5
Compressor desynchronizing| H7
Compressor phase-lacking/phase-inverse protection| Ld
IPM modular protection| H5
DC bus-bar low voltage protection| PL
DC bus-bar high voltage protection| PH
PFC protection| HC
The four-way valve is abnormal| U7

9.3 Malfunction Checking and Elimination
1 IPM protection malfunction:
Main checking point:

• If the input voltage of the unit is within normal range?
• If the connection wire of compressor is connected well? Is it loose? If the connection sequence is correct?
• If the resistance of compressor coil is normal? If the isolation of compressor coil with copper pipe is good?
• If the unit is overloaded? If the heat radiation of the unit is good?
• If the refrigerant charge is suitable?

Flow chart:
2. PFC protection malfunction, capacity charging malfunction
Main checking points:

• If the mainboard is broken;
• If the wiring of the induction is connected well and if the induction is broken;

Flow chart:
For 14/18K 3. Compressor desynchronizing malfunction
Main checking points:

• If the eletric expansion valve is working normally or it is broken;
• If the pressure of the system is too high;
• If the radiation of the unit is good;

Flow chart: 4. Compressor overload, diacharge protectionmalfunction
Main checking points:

• If there is refrigerant leakage;
• If the eletric expansion valve is connected well or it is broken;
• If the overload protector is broken;

Flow chart: Note: the detection method of the coil of the eletric expansion valve: there is five pieces of coil of the eletric expansion valve, the resistance of one of them (the leftmost or the rightmost one) is almost the same as the resistance of other terminal (within 100Ω ). Judge the condition of the electronic expansion valve through detecting these resistance.

5. Start failuremalfunction
Main checking points:

• If the stop duration of the compressor is sufficient;
• If the connection wire of the compressor is connected properly;
• If the compressor is broken;
• If the refrigerant charging amount is too much;;

Flow chart: 6. Temperature sensor malfunction
Main checking points:

• If the terminal of the temperature sensor is loosended or not connected;
• If the temperature sensor is damaged or broken;
• If the mainboard is broken;

Flow chart:

7. DC fan malfunction
Main checking points:

• If the outdoor fan is blocked by foreign objects;
• The connection wire of DC fan is connected reliably? If it is loose?

Flow chart: 8. Communication malfunction
Main checking points:

• If the indoor mainboard or outdoor main board is broken;
• If the connection wire between the indoor unit and outdoor unit is connected well, if the wires inside the unit is connected well;

Flow chart: 9. Anti-high temperatureand overload malfunction
Main checking points:

• If the indoor fan and outdoor fan are running normally;
• If the outdoor ambient temperature is within the normal range;
• If the indoor and outdoor radiation environment is good;

Flow chart: 9.4 Troubleshooting for Normal Malfunction
1. Air Conditioner Can’t be Started Up

Possible Causes| Discriminating Method (Air conditioner
Status)| Troubleshooting
---|---|---
No power supply, or poor connection for power plug| After energization, operation indicator isn’t bright and the buzzer can’t give out sound| Confirm whether its due to power failure. If yes, wait for power recovery. If not, check power supply circuit and make sure the power plug is connected well.
Wrong wire connection between indoor unit and outdoor unit, or poor connection for wiring terminals| Under normal power supply circumstances

circumstances,

operation indicator isn’t bright after energization

| Check the circuit according to circuit diagram and connect wires correctly. Make sure all wiring terminals are connected firmly
Electric leakage for air conditioner| After energization, room circuit breaker trips off at once| Make sure the air conditioner is grounded reliably Make sure wires of air conditioner is connected correctly
Check the wiring inside air conditioner. Check whether the insulation layer of power cord is damaged; if yes, place the power cord.
Model selection for air switch is improper| After energization, air switch trips off| Select proper air switch
Malfunction of remote controller| After energization, operation indicator is bright, while no display on remote controller or buttons have no action.| Replace batteries for remote controller  Repair or replace remote controller

2. Poor Cooling (Heating) for Air Conditioner

Possible Causes| Discriminating Method (Air conditioner Status)| Troubleshooting
---|---|---
Set temperature is improper| Observe the set temperature on remote controller| Adjust the set temperature
Rotation speed of the IDU fan motor is set too low| Small wind blow| Set the fan speed at high or medium
Filter of indoor unit is blocked| Check the filter to see its blocked| Clean the filter
Installation position for indoor unit and outdoor unit is improper| Check whether the installation postion is proper according to installation requirement for air conditioner| ust the installation position, and install the Adjust rainproof and sunproof for outdoor unit
Refrigerant is leaking| Discharged air temperature during cooling is higher than normal discharged wind temperature; Discharged air temperature during heating is lower than normal discharged wind temperature; Units pressure is much lower than regulated range| Find out the leakage causes and deal with it. Add refri gerant.
Malfunction of 4-way valve| Blow cold wind during heating| Replace the 4-way valve
Malfunction of capillary| Discharged air temperature during cooling is higher than normal discharged wind temperature; Discharged air temperature during heating is lower than normal discharged wind temperature; Unitt pressure is much lower than regulated range. If refrigerant isn’t leaking, part of capillary is blocked| Replace the capillary
Flow volume of valve is insufficient| The pressure of valves is much lower than that stated in the specification| Open the valve completely
Malfunction of horizontal louver| Horizontal louver can’t swing| Refer to point 3 of maintenance method fordetails
Malfunction of the IDU fan motor| The IDU fan motor can’t operate| Refer to troubleshooting for H6 for maintenancemethod in details
Malfunction of the ODU fan motor| The ODU fan motor can’t operate| Refer to point 4 of maintenance method for details
Malfunction of compressor| Compressor can’t operate| Refer to point 5 of maintenance method for detail

3. Horizontal Louver Can’t Swing

Possible Causes| Discriminating Method (Air conditioner Status)| Troubleshooting
---|---|---
Wrong wire connection, or poor connection| Check the wiring status according to circuit diagram| Connect wires according to wiring diagram to make sure all wiring terminals are connected firmly
Stepping motor is damaged| Stepping motor can’t operate| Repair or replace stepping motor
Main board is damaged| Others are all normal, while horizontal louver can’t operate| Replace the main board with the same model

4. ODU Fan Motor Can’t Operate

Possible causes| Discriminating method (air conditioner status)| Troubleshooting
---|---|---
Wrong wire connection, or poor connection| Check the wiring status according to circuit diagram| Connect wires according to wiring diagram to make sure all wiring terminals are connected firmly
Capacity of the ODU fan motor is damaged| Measure the capacity of fan capacitor with an universal meter and find that the capacity is out of the deviation range indicated on the nameplate of fan capacitor.| Replace the capacity of fan
Power voltage is a little low or high| Use universal meter to measure the power supply voltage. The voltage is a little high or low| Suggest to equip with voltage regulator
Motor of outdoor unit is damaged| When unit is on, cooling/heating performance is bad and ODU compressor generates a lot of noise and heat.| Change compressor oil and refrigerant. If no better, replace the compressor with a new one

5. Compressor Can’t Operate

Possible causes| Discriminating method (air conditioner status)| Troubleshooting
---|---|---
Wrong wire connection, or poor connection| Check the wiring status according to circuit diagram| Connect wires according to wiring diagram to make sure all wiring terminals are connected firmly
Capacity of com pressor is damaged| Measure the capacity of fan capacitor with an universal meter and find that the capacity is out of the deviation range indicated on the nameplate of fan capacitor.| Replace the compressor capacitor
Power voltage is a little low or high| Use universal meter to measure the power supply voltage. The voltage is a little high or low| Suggest to equip with voltage regulator
Coil of compressor is burnt out| Use universal meter to measure the resistance between compressor terminals and its 0| Repair or replace compressor
Cylinder of compressor is blocked| Compressor can’t operate| Repair or replace compressor

6. Air Conditioner is Leaking

Possible causes| Discriminating method (air conditioner status)| Troubleshooting
---|---|---
Drain pipe is blocked| Water leaking from indoor unit| Eliminate the foreign objects inside the drain pipe
Drain pipe is broken| Water leaking from drain pipe| Replace drain pipe
Wrapping is not tight| Water leaking from the pipe connection place of indoor unit| Wrap it again and bundle it tightly

7. Abnormal Sound and Vibration

Possible causes| Discriminating method (air conditioner status)| Troubleshooting
---|---|---
When turn on or turn off the unit, the panel and other parts willexpand and theres abnormal sound| Theres the sound of “PAPA”| Normal phenomenon. Abnormal sound will disappear after a few minutes.
When turn on or turn off the unit, theres abnormal sound due to flow of refrigerant inside air conditioner| Water-running sound can be heard| Normal phenomenon. Abnormal sound will disappear after a few minutes.
Foreign objects inside the indoor unit or therere parts touching together inside the indoor unit| Theres abnormal sound fro indoor unit| Remove foreign objects. Adjust all parts position of indoor unit, tighten screws and stick damping plaster between connected parts
Foreign objects inside the outdoor unit or therere parts touching together inside the outdoor unit| Theres abnormal sound fro outdoor unit| Remove foreign objects. Adjust all parts position of outdoor unit, tighten screws and stick damping plaster between connected parts
Short circuit inside the magnetic coil| During heating, the way valve has abnormal electromagnetic sound| Replace magnetic coil
Abnormal shake of compressor| Outdoor unit gives out abnormal sound| Adjust the support foot mat of compressor, tighten the bolts
Abnormal sound inside the compressor| Abnormal sound inside the compressor| If add too much refrigerant during maintenance, please reduce refrigerant properly. Replace compressor for other circumstances.

Exploded View and Parts List

Some models may not contain some parts, please refer to the actual product.

Some models may not contain some parts, please refer to the actual product.

Some models may not contain some parts, please refer to the actual product.

Some models may not contain some parts, please refer to the actual product.

Removal Procedure

ZDAE-2040-09M25
ZDAE-2050-09M25
Warning: Be sure to wait for a minimum of 20 minutes after turning off all power supplies and discharge the refrigerant completely before removal.

1. Before disassembly
Complete axonometric drawing.|
2. Remove valve cover
Remove the connection screw fixing the valve cover and then remove the valve cover.|
3. Remove handle
Remove the connection screws fixing the handle and the right side plate, and then remove the handle.|
4. Remove top panel
Remove the connection screws connecting the top panel and the front panel, and then remove the top panel.|
5. Remove front grille
Remove the connection screws connecting the frontgrille and the front panel, and then loosen the clasp to remove the front grille.|
6. Remove front panel
Remove the screws connecting the front panel and then remove the front panel.|
7. Remove right side plate
Remove the screws connecting the right side plate with the chassis and the valve support. Then remove the right side plate.|
8. Remove rear grill
Remove the screws connecting the rear grill and left side plate, and then remove the rear grill.|
9. Remove left side plate
Remove the screws fixing the left side plate with the chassis and the condenser support, and then remove the left side plate.|
10. Remove axial flow blade
Remove the nut on the blade and then remove the axial flow blade.|
11. Remove motor and motor support
Remove the 4 tapping screws fixing the motor anddisconnect the leading wire insert of the motor. Thenremove the motor. Remove the 2 tapping screws fixing the motor support and chassis, and then lift the motorsupport to remove it.|
12. Remove electric box assy
Remove the screws fixing the electric box assy and the middle isolation sheet, loosen the wire bundle, unplug the wiring terminals, and then lift the electric box assy to remove it.|
13. Remove 4-way valve assy
Remove screws fixing the electricbox; loosen the wire bundle; pull out the wiring terminals and then pull electric box upwards to remove it.|
14. Remove valve support sub-assy and expansion valve assy
Remove the screw connecting the valve support and the chassis, and then remove the valve support assy. Unsolder the welding joint connecting the electronic expansion valve assy with the cut-off valve and the condenser connection pipe, and then remove the expansion valve assy.|
15. Remove middle isolation sheet
Remove the screws connecting the middle isolation sheet with the chassis assy and the condenser assy, and then remove the middle isolation sheet.|
16. Remove compressor
Remove the 3 foot nuts fixing the compressor and then remove the compressor.|
17. Remove condenser assy
Remove the screws fixing the condenser support and then remove the condenser support.
Remove the screws connecting the condenser support and the chassis assy, and then remove the condenser assy.|

11. Removal Procedure
ZDAE-3060-09M25
ZDAE-3070-09M25
Warning: Be sure to wait for a minimum of 20 minutes after turning off all power supplies and discharge the refrigerant completely before removal.

1. Before disassembly
Complete axonometric drawing.|
2. Remove valve cover
Remove the connection screw fixing the valve cover and then remove the valve cover.|
3. Remove handle
Remove the connection screws fixing the handle andthe right side plate, and then remove the handle.|
4. Remove top panel
Remove the connection screws connecting the top panel and the front panel, and then remove the top panel.|
5. Remove front grille
Remove the connection screws connecting the frontgrille and the front panel, and then loosen the clasp to remove the front grille.|
6. Remove front panel
Remove the screws connecting the front panel and then remove the front panel.|
7. Remove right side plate
Remove the screws connecting the right side plate with the chassis and the valve support. Then remove the right side plate.|
8. Remove rear grill
Remove the screws connecting the rear grill and left side plate, and then remove the rear grill.|
9. Remove left side plate
Remove the screws fixing the left side plate with the chassis and the condenser support, and then remove the left side plate.|
10. Remove axial flow blade
Remove the nut on the blade and then remove the axial
flow blade.|
11. Remove motor and motor support
Remove the 4 tapping screws fixing the motor and disconnect the leading wire insert of the motor. Then remove the motor. Remove the 2 tapping screws fixing the motor support and chassis, and then lift the motor support to remove it.|
12. Remove electric box assy
Remove the screws fixing the electric box assy and the
middle isolation sheet, loosen the wire bundle, unplug the wiring terminals, and then lift the electric box assy to remove it.|
13. Remove 4-way  valve assy
Remove screws fixing the electricbox; loosen the wire bundle; pull out the wiring terminals and then pull electric box upwards to remove it.|
14. Remove valve support sub-assy and expansion valve assy
Remove the screw connecting the valve support and the chassis, and then remove the valve support assy. Unsolder the welding joint connecting the electronic expansion valve assy with the cut-off valve and the condenser connection pipe, and then remove the expansion valve assy.|
15. Remove middle isolation sheet
Remove the screws connecting the middle isolation sheet with the chassis assy and the condenser assy, and then remove the middle isolation sheet.|
16. Remove compressor
Remove the 3 foot nuts fixing the compressor and then
remove the compressor.|
17. Remove condenser assy
Remove the screws fixing the condenser support andthen remove the condenser support. Remove the screws connecting the condenser support and the chassis assy, and then remove the condenser assy.|

ZDAE-4080-09M25
Warning: Be sure to wait for a minimum  of 20 minutes after turning off all power supplies and discharge the refrigerant completely before removal.

1. Before disassembly
Complete axonometric drawing.|
2. Remove valve cover
Remove the connection screw fixing the valve cover
and then remove the valve cover.|
3. Remove handle
Remove the connection screws fixing the handle and the right side plate, and then remove the handle.|
4. Remove top panel
Remove the connection screws connecting the top panel and the front panel, and then remove the top panel.|
5. Remove front grille
Remove the connection screws connecting the front grille and the front panel, and then loosen the clasp to remove the front grille.|
6. Remove front panel
Remove the screws connecting the front panel and then remove the front panel.|
7. Remove right side plate
Remove the screws connecting the right side plate with
the chassis and the valve support. Then remove the
right side plate.|
8. Remove rear grill
Remove the screws connecting the rear grill and left
side plate, and then remove the rear grill.|
9. Remove left side plate
Remove the screws fixing the left side plate with the
chassis and the condenser support, and then remove
the left side plate.|
10. Remove axial flow blade
Remove the nut on the blade and then remove the axial
flow blade.|
11. Remove motor and motor support
Remove the 4 tapping screws fixing the motor and disconnect the leading wire insert of the motor. Then remove the motor. Remove the 2 tapping screws fixing the motor support and chassis, and then lift the motor support to remove it.|
12. Remove electric box assy
Remove the screws fixing the electric box assy and the middle isolation sheet, loosen the wire bundle, unplug the wiring terminals, and then lift the electric box assy to remove it.|
13. Remove 4-way  valve assy
Remove screws fixing the electricbox; loosen the wire bundle; pull out the wiring terminals and then pull electric box upwards to remove it.|
14. Remove valve support sub-assy and expansion valve assy
Remove the screw connecting the valve support and the chassis, and then remove the valve support assy. Unsolder the welding joint connecting the electronic expansion valve assy with the cut-off valve and the condenser connection pipe, and then remove the expansion valve assy.|
15. Remove middle isolation sheet
Remove the screws connecting the middle isolation sheet with the chassis assy and the condenser assy, and then remove the middle isolation sheet.|
16. Remove compressor
Remove the 3 foot nuts fixing the compressor and then
remove the compressor.|
17. Remove condenser assy
Remove the screws fixing the condenser support andthen remove the condenser support.
Remove the screws connecting the condenser support
and the chassis assy, and then remove the condenser
assy.|

ZDAE-5130-09M25
Warning: Be sure to wait for a minimum of 20 minutes after turning off all power supplies and discharge the refrigerant completely before removal.

1. Before disassembly
Complete axonometric drawing.|
2. Remove valve cover
Remove the connection screw fixing the valve cover
and then remove the valve cover.|
3. Remove handle
Remove the connection screws fixing the handle and the right side plate, and then remove the handle.|
4. Remove top panel
Remove the connection screws connecting the top panel and the front panel, and then remove the top panel.|
5. Remove front grille
Remove the connection screws connecting the front grille and the front panel, and then loosen the clasp to remove the front grille.|
6. Remove front panel
Remove the screws connecting the front panel and then remove the front panel.|
7. Remove right side plate
Remove the screws connecting the right side plate with
the chassis and the valve support. Then remove the
right side plate.|
8. Remove rear grill
Remove the screws connecting the rear grill and left
side plate, and then remove the rear grill.|
9. Remove left side plate
Remove the screws fixing the left side plate with the
chassis and the condenser support, and then remove
the left side plate.|
10. Remove axial flow blade
Remove the nut on the blade and then remove the axial
flow blade.|
11. Remove motor and motor support
Remove the 4 tapping screws fixing the motor and disconnect the leading wire insert of the motor. Then remove the motor. Remove the 2 tapping screws fixing the motor support and chassis, and then lift the motor support to remove it.|
12. Remove electric box assy
Remove the screws fixing the electric box assy and the middle isolation sheet, loosen the wire bundle, unplug the wiring terminals, and then lift the electric box assy to remove it.|
13. Remove 4-way  valve assy
Remove screws fixing the electricbox; loosen the wire bundle; pull out the wiring terminals and then pull electric box upwards to remove it.|
14. Remove valve support sub-assy and expansion valve assy
Remove the screw connecting the valve support and the chassis, and then remove the valve support assy. Unsolder the welding joint connecting the electronic expansion valve assy with the cut-off valve and the condenser connection pipe, and then remove the expansion valve assy.|
15. Remove middle isolation sheet
Remove the screws connecting the middle isolation sheet with the chassis assy and the condenser assy, and then remove the middle isolation sheet.|
16. Remove compressor
Remove the 3 foot nuts fixing the compressor and then
remove the compressor.|
17. Remove condenser assy
Remove the screws fixing the condenser support andthen remove the condenser support.
Remove the screws connecting the condenser support and the chassis assy, and then remove the condenser assy.|

Appendix

Appendix 1 : Reference Sheet of Celsius and Fahrenheit
Set temperature
Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+3274
Set temperature

Ambient temperature

| |
---|---|---
32/33| 32| 0
34/35| 33.8| 1
36| 35.6| 2
37/38| 37.4| 3
39/40| 39.2| 4
41/42| 41| 5
43/44| 42.8| 6
45| 44.6| 7
46/47| 46.4| 8
48/49| 48.2| 9
50/51| 50| 10
52/53| 51.8| 11
54| 53.6| 12
55/56| 55.4| 13
57/58| 57.2| 14
59/60| 59| 15
61/62| 60.8| 16
63| 62.6| 17
64/65| 64.4| 18
66/67| 66.2| 19
68/69| 68| 20
70/71| 69.8| 21
72| 71.6| 22
73/74| 73.4| 23
75/76| 75.2| 24
77/78| 77| 25
79/80| 78.8| 26
81| 80.6| 27
82/83| 82.4| 28
84/85| 84.2| 29
86/87| 86| 30
88/89| 87.8| 31
90| 89.6| 32
91/92| 91.4| 33
93/94| 93.2| 34
95/96| 95| 35
97/98| 96.8| 36
99| 98.6| 37

Appendix
Appendix 2: Pipe Expanding Method

Note:
Improper pipe expanding is the main cause of refrigerant leakage.Please expand the pipe according to the following steps:

A:Cut the pip

• Confirm the pipe length according to the distance of indoor unit and outdoor unit.
• Cut the required pipe with pipe cutter.

B:Remove the burrs

• Remove the burrs with shaper and prevent the burrs from getting into the pipe.

C:Put on suitable insulating pipe.

D:Put on the union nut

• Remove the union nut on the indoor connection pipe and outdoor valve; install the union nut on the pipe.

E:Expand the port
● Expand the port with expander.

Note:
● “A” is different according to the diameter, please refer to the sheet below:

F:Inspection
● Check the quality of expanding port. If there is any blemish, expand the port again according to the steps above.

Appendix 3: List of Resistance for Temperature Sensor
Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units(15K)

Resistance Table of Tube Temperature Sensors for Indoor and Outdoor (20K)

Resistance Table of Discharge Temperature Sensor for Outdoor(50K)

GROUPE AIRWELL
10, RUE DU FORT DE SAINT CYR – 78180 MONTIGNY LE BRETONNEUX, FRANCE
TEL.: +33 (0)1 76 21 82 00 – www.airwell.com

Read User Manual Online (PDF format)

Download This Manual (PDF format)

Download this manual  >>