Fujitsu 12RLS3H Manual de instalação - Página 6

Procurar online ou descarregar pdf Manual de instalação para Ar condicionado Fujitsu 12RLS3H. Fujitsu 12RLS3H 6 páginas. Outdoor unit

6. PUMP DOWN

6.1. Pump down

PUMP DOWN OPERATION (FORCED COOLING OPERATION)

To avoid discharging refrigerant into the atmosphere at the time of relocation or disposal,

recover refrigerant by doing the forced cooling operation according to the following proce-

dure.

(1) Conduct preliminary operation for 5 to 10 minutes using the forced cooling operation.

Start the forced cooling operation. Keep on pressing the MANUAL AUTO button of the

indoor unit for more than 10 seconds. The operation indicator lamp and timer indicator

lamp will begin to flash simultaneously during test run. (The forced cooling operation

cannot start if the MANUAL AUTO button is not kept on pressing for more than 10 sec-

onds.)

(2) Close the valve stem of 2-way valve completely.

(3) Continue the forced cooling operation for 2 to 3 minutes, then close all the valve stems

on the 3-way valves

(4) Stop the operation.

• Press the START/STOP button of the remote controller to stop the operation.

• Press the MANUAL AUTO button when stopping the operation from the indoor unit

side.

(It is not necessary to press down for more than 10 seconds.)

Please check the refrigerant circuit for any leaks before starting the pump down

operation.

Do not proceed with the pump down operation if there is no refrigerant left in the

circuit due to bent or broken piping

During the pump down operation, be sure to turn off the compressor before

removing the refrigerant piping.

En-6

CAUTION