Sanyo UHX2452 Manual Do Utilizador

1-2

Before attempting to start the air conditioner, check the fol-
lowing.

(1)  All loose matter is removed from the cabinet, especially 

steel fi lings, bits of wire, and clips.

(2)  The control wiring is correctly connected and all electrical 

connections are tight.

(3)  The protective spacers for the compressor used for trans-

portation have been removed. If not, remove them now.

(4)  The transportation pads for the indoor fan have been 

removed. If not, remove them now.

(5)  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 crank-
case heater around the feet of the compressor should be 
hot to the touch.

(6)  Both the gas and liquid tube service valves are open. If 

not, open them now.

(7)  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.

(8)  Be sure to give the instruction manual and warranty cer-

tifi cate to the customer.

(9)  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 connected 
to the new control PCB.

z

Power mains switch

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

ON

Balance tube

Liquid tube

Gas tube

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2007/06/08   14:23:11

2007/06/08   14:23:11