Panasonic CU-2E18SBE, Руководство по обслуживанию

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14.2 CU-2E12SBE, CU-2E15SBE & CU-2E18SBE
14.2.1 Pump down operation

Operate the pump down process according to the following procedure
o
Confirm the valve on the liquid side and gas side are open.
o
Short the CN-PUMP button on the Service PCB inside the outdoor unit for more than 5 seconds. Pump down
(cooling) operation is performed for 15 minutes.
o
Set the liquid side 3 way valve to close position and wait until the pressure gauge indicates 0.01MPa
(0.1kg/cm
2
G).
o
Immediate set the gas side valve to close position and then Short the CN-PUMP button to stop the pump
down operation.
NOTE: Pump down operation will stop automatically after 15 minutes if CN-PUMP button is not shorted again. Pump
down operation is not started within 3 minutes after compressor is stopped.
14.2.2 Heating only function
The equipment can be set to heating only operation by some setting on the Outdoor unit main circuit board

Switch off power supply to the outdoor unit, unplug and remove the lead wire on CN-HEAT.
close
Hexagonal
wrench
Liquid shut-off valve
Gas shut-off valve
Valve lid
Remove the lead wire
CN-HEAT
(HEAT ONLY)
CN-HEAT
(HEAT ONLY)