Sanyo CHDZR14053, XMHX1252, XMHX1852, CHDZR09053, 85464369098000 installation instructions Test RUN

8. TEST RUN

8-1. Preparing for Test Run

●Before attempting to start the air conditioner, check the following.

(1)The control wiring is correctly connected and all electrical connections are tight.

(2)The transportation pads for the indoor fan have been removed. If not, remove them now.

(3)The power has been connected to the unit for at least 5 hours before starting the compressor. The bottom of the compressor should be warm to the touch and the crankcase heater around the feet of the compressor should be hot to the touch.

(Fig. 8-1)

(4)If only 1 outdoor unit is installed, close the service valve on the balance tubes, and open the service valve on the other 3 tubes (suction, discharge, and liquid tubes). (Fig. 8-2)

If 2 or 3 outdoor units are installed, open the service valves on all 4 tubes (suction, discharge, liquid, and balance tubes). (Fig. 8-2)

(5)Request that the customer be present for the trial run.

Explain the contents of the instruction manual, then have the customer actually operate the system.

(6)Be sure to give the instruction manual and warranty certificate to the customer.

(7)When replacing the control PCB, be sure to make all the same settings on the new PCB as were in use before replacement.

The existing EEP ROM is not changed, and is con- nected to the new control PCB.

83

ON

(Power must be turned ON at least 5 hours before attempting test run)

Power mains switch

Fig. 8-1

Balance tube

Liquid tube

Discharge tube

Suction tube

Fig. 8-2

W-3WAY_ECO-i_US.indd 83 2008/02/07 10:56:11