Haier GE APPLIANCES Connect Series, Руководство по обслуживанию

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CONNECT SERIES SERVICE MANUAL
39
ENGLISH
Maintenance
Refrigerant Charging When Unit is Running
1. Connect the low pressure gauge line to the vapor line service valve and connect the high pressure gauge
line to the service valve. Connect the middle gauge line to the vacuum pump. Power on the vacuum pump
and evacuate the system.
2. After evacuation, close the high and low pressure gauge valves. Then remove the middle gauge line from
the connector of vacuum pump and connect the refrigerant tank.
3. Purge the center hose.
4. Turn on the heat pump and let it run for a while.
5. Open the low pressure gauge valve (Keep the high pressure gauge valve closed) and charge add the
remaining required refrigerant.
6. After all required refrigerant is charged in, close the valve of refrigerant tank.
7. Remove the pressure gauge to finish the refrigerant charging work.
5. Open the high pressure gauge valve (Keep the low pressure gauge valve closed). Then charge refrigerant
into the system.
6. Add the required amount of refrigerant calculated and close off the manifold gauge when complete.
7. If you can’t continue to charge refrigerant into the system and the quantity of charged refrigerant is
less than the required charging quantity, then restart the system and add the remainder of the required
refrigerant into the vapor line while the system is running.
8. After charging, remove the pressure gauge.
Procedure of Refrigerant Charging
Following is the supplementary requirement for refrigerant charging on the basis of normal procedure:
1. Make sure that when charging refrigerant into the system, no other types of refrigerant will be mixed. The
pipeline for refrigerant charging should be as short as possible to reduce the amount of refrigerant left in
it.
2. The refrigerant tank should stand erect.
3. Make sure the refrigerating system is already grounded before refrigerant charging.
4. When charging is completed (or not yet completed), stick a label on the system.
5. Perform a final refrigerant leak test before leaving the work site.
Maintenance of Major Components
Replacement of Thermostat
Please refer to the instruction manual for your thermostat.