
1.3 LOCATIONS OF CONTROLS
1.4 SAFETY PRECAUTIONS
1. When servicing, set the ROTARY SWITCH to
Off 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.
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] of the ROTARY SWITCH.
4. The value should be over 1 MΩ.
CAUTION : After switching the air conditioner from Cool to Off or Fan, wait at least 3 minutes before switching it
back to Cool.
Off : Turns air conditioner off.
Hi Fan : High speed fan operation without
cooling.
Lo Fan : Low speed fan operation without
cooling.
Hi Cool : Cooling with high speed fan
operation.
Lo Cool : Cooling with low speed fan
operation.
This automatically controls the temperature of the
indoor air.
Turn the knob clockwise
for greater cooling.
Point the arrow
counter-clockwise
for more moderate cooling.
Thermostat
Temperature
Warmer Cooler
Operation
Hi
Fan
Lo
Fan
Hi
Cool
Off
Lo
Cool
Mode
O
O