Locations Of Controls; Safety Precautions; Insulation Resistance Test - Friedrich Z-Star ZQ05C10 Service And Parts Manual

1.3 LOCATIONS OF CONTROLS

Operation
Hi
Fan
Lo
O
Fan
Thermostat
Warmer
CAUTION : After switching the air conditioner from Cool to Off 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 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.
Off
Hi
O Cool
Lo
Cool
Mode
Cooler
Temperature
Off : Turns air conditioner off.
Hi Fan : High speed fan operation without
Lo Fan : Low speed fan operation without
Hi Cool : Cooling with high speed fan
Lo Cool : Cooling with low speed fan
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.

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.
—4—
cooling.
cooling.
operation.
operation.