Connect The Cable To The Outdoor Unit - Mandik KFR-09GW/BP User Manual

4 |

CONNECT THE CABLE TO THE OUTDOOR UNIT

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
5 | AIR pURGING AND TEST OpERATION
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:
Connective pipe length
Less than 5 m
More than 5 m
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
„ „
Outdoor unit
A
B
Packed valve
Cover
Cooling only type
Screw
To indoor unit
Air purging method
Use vacuum pump
Liquid side: ø 6 35 mm
Use vacuum pump R22: (Pipe length-5) × 30 g/m
R410A: (Pipe length-5) × 20 g/m
Refrigerant
Indoor unit
Gas side
Liquid side
Flare nut
Terminal block of outdoor unit
Cooling & heating type
or
To indoor unit To indoor unit
Additional amount of refrigerant to be charged
–
R22: (Pipe length-5) × 60 g/m
R410A: (Pipe length-5) × 40 g/m
Valve body
Valve stem
or
To indoor unit
Liquid side: ø 9 52 mm
Flare nut
Stopper
Cap
11
EN