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10. Test Run
10-1. Preparing for Test Run
Before starting the air conditioner, check the
following:
(1)
Remove all loose matter from the cabinet espe-
cially metal filings, bits of wire, and clips.
(2)
Connect the control wiring correctly and tighten
all electrical connections.
(3)
Remove the protective spacer for the compressor
used for transportation.
(4)
Connect the power 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. For
Ceiling mounted and Recessed Type indoor
units, the flap(s) move(s) for one minute when the
power is connected to the unit.
This is not the malfunction.
(5)
Open both the wide and narrow tube service
valves after air purge.
(6)
Remove the transportation cardboard protection
for the indoor fan.
10-2. Performing Test Run
Be careful since the fan will
CAUTION
start when performing Test
Run.
For THS, XHS models
(1)
For THS and XHS models, the Operation
Selector is located above the electrical compo-
nent box inside the indoor unit. To access the
Operation Selector, press the two latches of the
air intake grille in the direction of the arrow to
open the grille. Open the air intake grille
downward. (Fig. 10-1)
(2)
Set the TEST RUN switch of the SERVICING
switches on the Operation Controller (housed
indside the indoor unit) to the ON position.
(Fig. 10-1)
(3)
Press the ON/OFF operation button on the
remote control unit and start the air conditioner in
COOL or HEAT mode.
(4)
Let the unit run for about 30 minutes and check
that the unit operates normally.
(5)
After the test run, be sure to set the TEST RUN
switch back to the OFF position to cancel the test
run mode. Then stop the air conditioner.
All OFF for
initial settings.
ON
OFF
1
2 3
4
ON • I
ADDRESS
SWEEP
OFF•O
1. TEST RUN(ON)
1 2
3
NORM. HOLD
2. PCB CHK.(ON)
3. RCU MAIN(OFF)
/ SUB(ON)
4. OFF
Air filter
TEST
OPR STANDBY TIMER
OPERATION
lamp
STANDBY
lamp
TIMER lamp
44
S4179705
OPER.
TIMER
STDBY
OPERATION
TIMER
STANDBY
lamp
lamp
lamp
Air intake grille
Operation
1 2 3 4
selector
1. TEST RUN
2. (OFF)
3. (OFF)
4. (ON)
Air intake grille
1109_M_I
Fig. 10-1
REMOTE CONTROL receiver
OFF
ON
Operation
Flap
selector
1121_M_I
Fig. 10-2
Remote
control
receiver
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