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Connecting the cable to the outdoor unit
Unscrew the bolt and take off the cover of the electrical control panel from the outdoor unit.
Connect the cables to the connecting clamps as marked with numbers on the connecting plate of the outdoor
unit.
Using a cable camp attach the cable to the control panel.
To prevent the penetration of water, make a loop with the connecting cable to make sure the droplets of water
always drip away from the unit.
Cables on the outdoor unit may only be replaced by the manufacturer, their service provider or an authorised
person!
Fig. 15: Removing protective lid from the outdoor unit
TEST RUNNING
Electric safety check
Perform the electric safety check after completing the installation:
1. Insulated resistance
The insulated resistance must be more than 2 MΩ.
2. Grounding work
After finishing grounding work, measure the grounding resistance by visual detection and grounding resistance
tester.
3. Electrical leakage check (performing during test running)
During test operation after finishing installation, the serviceman can use the electro probe and multimeter to
perform the electrical leakage check. Turn off the unit immediately if leakage happens. Check and seek for a
solution until the unit operates properly.
Gas leak check
1. Soap water method
Apply soap water or a liquid neutral detergent on the indoor unit connection or outdoor unit connections using a
soft brush to check for leakage of the connecting points of the piping. If bubbles come out, the pipes are leaking.
2. Leak detector
Use the leak detector to check for leakage.
Test running
Perform the test operation after completing the gas leak check at the flare nut connections and the electrical
safety check.
Before electrical connection, fill the indoor unit with water.
Make sure that all the pipes and wires are properly connected.
Make sure that the gas and liquid side service valves are fully open.
The test operation should last for about 30 minutes.
Summary of Contents for TC 120-150 SPLIT
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