1.3 LOCATIONS OF CONTROLS

 

Operation

Off

: Turns air conditioner off.

 

 

 

 

 

Off

Hi Fan

: High speed fan operation without

 

 

 

cooling.

 

Hi

Hi

 

 

 

 

 

Fan O

Cool

Lo Fan

: Low speed fan operation without

 

 

 

Lo

O

Lo

 

cooling.

Fan

Cool

 

 

 

 

 

Hi Cool

: Cooling with high speed fan

 

 

 

 

operation.

 

 

Mode

Lo Cool

: Cooling with low speed fan

 

 

 

 

 

 

 

operation.

 

 

 

 

 

Thermostat

 

 

 

 

 

This automatically controls the temperature of the

 

 

 

indoor air.

 

 

 

 

Turn the knob so that the arrow points to the

 

 

 

larger marks for greater cooling. Point the arrow to

 

 

 

the smaller marks for more moderate cooling.

 

 

 

(i.e. the higher the number, the greater the

Warmer

Cooler

cooling)

 

 

Temperature

 

 

 

 

 

 

 

 

 

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.

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 M.

—4—

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Friedrich ZQ07B10, ZQ05B10 manual Locations of Controls, Safety Precautions, Insulation Resistance Test