Zibro S30 Serie Manual De Instalación página 79

AIR PURGING (for S 30xx models)
Air and moisture that remain in the refrigerant system, e.g. after installation, can cause undesirable effects
or damage as indicated below:
• Pressure in the system rises.
• Operating current rises.
• Cooling or heating efficiency drops.
• Moisture in the refrigerant circuit may freeze and block capillary tubing.
• Water may lead to corrosion of parts in the refrigeration system.
• Damage of the compressor.
Therefore, the indoor unit and tubing between the indoor and outdoor unit must always be leak tested and
evacuated with aid of a vacuum pump to remove any noncondensables and moisture from the system.
PIPE LENGTH AND REFRIGERANT AMOUNT (for S 30xx models)
Connective pipe
lenght
Less than 5m
5~10m
• When relocate the unit to another place, perform evacuation using vacuum pump.
• Make sure the refrigerant added into the air conditioner is in liquid form in any case.
• Only use the type of refrigerant as stated on the rating label.
ELECTRICAL SAFETY CHECK AND GAS LEAK CHECK
It is advised to do the following safety checks.
Electrical safety check
Perform the electric safe check after completing installation:
1. Insulated resistance
The insulated resistance must be more than 2MΩ.
2. Grounding work
After finishing grounding work, measure the grounding resistance by visual detection and grounding
resistance tester. Make sure the grounding resistance is less than 4 Ω.
3. Electrical leakage check (performing during test running)
During test operation after finishing installation, use an electroprobe and multimeter to perform the
electrical leakage check. Turn off the unit immediately if leakage happens. Check and find out the solu-
tion ways till the unit operate properly.
Gas leak check
1. Soap water method:
Apply a soap water or a liquid neutral detergent on the indoor unit connection or outdoor unit con-
nections by a soft brush to check for leakage of the connecting points of the piping. If bubbles come
out, the pipes have leakage.
2. Dedicated special leak detector
Use the leak detector to check for leakage.
Additional amount above rating label
Air purging method
amount of refrigerant to be charged
Use vacuum pump.
Use vacuum pump.
------------------------
Liquid side pipe diameter:
ø 6.35 (Pipe length-5)x30g
4
79