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1.3 LOCATIONS OF CONTROLS
Operation
Off
High
Fan
Low
Fan
Thermostat
5
4
6
3
2
1
9
CAUTION : After switching the air conditioner from Cool to Off ( 0 ) or Fan, wait at least 3 minutes before
switching it back to Cool.
1.4 SAFETY PRECAUTIONS
1. When servicing, set the ROTARY SWITCH to
Off ( 0 ) and unplug the power cord.
2. Observe the original lead dress.
If a short circuit is found, replace all parts which
have been overheated or damaged by the short cir-
cuit.
3. After servicing, make an insulation resistance test
to prevent the customer from being exposed to
shock hazards.
Operation
0
High
Cool
Low
Cool
Thermostat
5
4
7
3
8
2
1
Off
(
High Fan (
Low Fan
(
High Cool (
Low Cool (
This automatically controls the temperature of the
6
indoor air.
Turn the knob so that the arrow points to the
7
larger marks for greater cooling. Point the arrow to
the smaller marks for more moderate cooling.
8
(i.e. the higher the number, the greater the
cooling)
9
1.5 INSULATION RESISTANCE TEST
1. Unplug the power cord and connect a jumper
between 2 pins (black and white).
2. The grounding conductor (green or green and yel-
low) is to be open.
3. Measure the resistance value with an ohm meter
between the jumpered lead and each exposed
metallic part on the equipment at all position
[except Off ( 0 )] of the ROTARY SWITCH.
4. The value should be over 1 M .
—4—
) : Turns air conditioner off.
0
) : High speed fan operation with-
out cooling.
) : Low speed fan operation with-
out cooling.
) : Cooling with high speed fan
operation.
) : Cooling with low speed fan
operation.
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Troubleshooting
