Mandik KFR-09GW/BP, User Manual

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11
EN
4 | CONNECT THE CABLE TO THE OUTDOOR UNIT
5
| AIR pURGING AND TEST OpERATION
1 Remove the electrical control board cover from the outdoor unit by loosening the screw
2 Connect the connective cables to the terminals as identified with their respective matched numbers on the terminal block of
indoor and outdoor units
3 Secure the cable onto the control board with the cord clamp
4 To prevent the ingress of water, form a loop of the connective cable as illustrated in the installation diagram of indoor and out-
door units
5 Insulate unused cords (conductors) with PVC-tape Process them so they do not touch any electrical or metal parts
NOTE: Connective pipe length will affect the capacity and energy efficiency of the unit. The nominal efficiency is tested basing on the
pipe length of 5 meters.
1. Air purging
„ „
The indoor unit and tubing between the indoor and outdoor unit must be leak tested and evacuated to remove any noncon-
densables and moisture from the system
„ „ Check that each tube(both liquid and gas side tubes) between the indoor and outdoor units have been properly connected
and all wiring for the test run has been completed
„ „
Pipe length and refrigerant amount:
„ „
For the R410A refrigerant model, make sure the refrigerant added into air conditioner is liquid form in any cases
„ „ When relocating the unit to another place, using vacuum pump to perform evacuation
CAUTION
„ „
Open the valve stem until it hits against the stopper Do not try to open it further
„ „
Securely tighten the valve stem cap with a spanner or the like
„ „ Valve stem cap tightening torque See
„ „ Tightening torque table
Refrigerant
Outdoor unit
Packed valve Flare nut
Flare nut
Stopper
Cap
Valve body
Valve stem
Indoor unit
Gas side
A
B
Liquid side
Connective pipe length Air purging method
Additional amount of refrigerant to be charged
Less than 5 m
Use vacuum pump –
More than 5 m Use vacuum pump
Liquid side: ø 6 35 mm
R22: (Pipe length-5) × 30 g/m
R410A: (Pipe length-5) × 20 g/m
Liquid side: ø 9 52 mm
R22: (Pipe length-5) × 60 g/m
R410A: (Pipe length-5) × 40 g/m
Cover
Cooling only type
To indoor unit To indoor unit To indoor unit To indoor unit
or or
Cooling & heating type
Terminal block of outdoor unit
Screw
INST
ALL
ATION M
ANU
AL FOR R
OOM AIR C
ONDITIONER