6
Technical Information
Service Manual
The above data is subject to change without notice; please refer to the nameplate of the unit.
Outdoor Unit 
Model of Outdoor Unit GWH12AAB-K3NNA2A/O GWH18AAC-K3NNA1A/O
Product Code of Outdoor Unit CA115W14100  CA115W14200
Compressor Manufacturer/Trademark 
ZHUHAI LANDA 
COMPRESSOR CO., LTD 
ZHUHAI LANDA 
COMPRESSOR CO., LTD 
Compressor Model QXA-B120C150A  QXA-D19F030
Compressor Oil RB68EP  ATMOS-RB68EP or equivalent
Compressor Type Rotary Rotary
L.R.A.   A 26 38.00 
Compressor RLA  A 4.4 7.10 
Compressor Power Input W 970 1540 
Overload Protector INTERNAL (UP3-02) UP3-A6
Throttling Method Capillary Capillary
Operation Temp
o
C 16~30 16~30
Ambient Temp (Cooling)
o
C 18~43 18~48
Ambient Temp (Heating)
o
C -7~24 -7~24
Condenser  Form  Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter  mm Φ7.94 Φ7.94
Rows-n Gap mm 1-1.4  2-1.4
Coil Length (LXDXW)   mm 697X19.05X506  735X38.1X508
Fan Motor Speed rpm 850 850 
Output of Fan Motor W 35 35 
Fan Motor RLA  A 0.33 0.33 
Fan Motor Capacitor  μF 2.5 2.5
Air Flow Volume of Outdoor Unit m
3
/h 1600 1800 
Fan Type Axial-ow Axial-ow
Fan Diameter mm Φ394 Φ394.5
Defrosting Method Automatic Defrosting Automatic Defrosting
Climate Type T1 T1
Isolation I I
Moisture Protection IPX4 IPX4
Permissible Excessive Operating Pressure for 
the Discharge Side
MPa 4.3 4.3
Permissible Excessive Operating Pressure for 
the Suction Side
MPa 2.5 2.5
Sound Pressure Level (H/M/L)  dB (A)  52/-/- 56/-/-
Sound Power Level (H/M/L)  dB (A)  62/-/- 66/-/-
Dimension (WXHXD)  mm 782X540X320 848X540X320
Dimension of Carton Box (LXWXH) mm 820X355X580 878X360X580
Dimension of Package (LXWXH)  mm 823X358X595 881X363X595
Net Weight   kg 30 39
Gross Weight kg 32.5 41.5
Refrigerant  R410A R410A
Refrigerant Charge kg 0.72 1.26
Connection 
Pipe
Length m 5 5
Gas Additional Charge g/m 15 15
Outer Diameter Liquid Pipe mm Φ6 Φ6
Outer Diameter Gas Pipe mm Φ12 Φ12
Max Distance Height m 10 10
Max Distance Length m 15 25
Note: The connection pipe applies metric diameter.