Airwell XLS12, Руководство по установке и обслуживанию

Страница: 28 / 30

26 26
26 26 26
TRIO
High T High T
High T High T
High Tech
ech
ech ech
ech
MAINTENANCE AND SERVICING
All the units are factory-filled with a predetermined R22 charge.
HOW TO IDENTIFY A REFRIGERANT FLUID LEAK ?
There may be a refrigerant leak in the system if the following conditions occur with the two
indoors units in operation:
Overheating higher than 15°C.
Compressor output temperature higher than 105°C.
Under-cooling lower than 3°C.
In the event of a leak:
Identify the source of the leak.
Completely drain the circuit by forcing the opening of the solenoid valves
Repair the cause of the leak.
Charge the circuit with nitrogen at a pressure of 2 bars and pass soapy water over the
pipe work to check that the leak has been properly repaired.
Vacuum drain the circuit down to 10
-
² bars.
Charge with R22 refrigerant as indicated on the Maker’s plate, taking account of
the installation’s pipe lengths.
CONDENSER
It is recommended that the finned exchanger is checked on a regular basis.
Use a neutral pH cleaning product to avoid any corrosion.
The cleaning operation must be performed with a low pressure water jet to avoid damaging
the fins.