Mitsubishi Electric PKH18FK Technical & Service Manual page 42

2-6 TIMER operation
-CENTRALLY CONTROLLED-
POWER
STAND BY
ON
DEFROST
CHECK DRY
HEAT AUTO
HEAT COOL
CHECK SET
WARMER
SET TEMP F
TEMPERATURE
TIMER OFF
AUTO STOP TIMER MODE
HR
AUTO START
FAN SPEED LOW/HIOGH
LOW HIGH
AIR
UP/DOWN
DISCHARGE
F
AUTO RETURN
CHECK
CHECK TEST RUN
MITSUBISHI ELECTRIC
<Timer setting example>
8
AUTO STOP
HR
2-7 Test run
<Before test run>
After installing, wiring, and piping the indoor and outdoor units, check for refrigerant leakage, looseness in power supply or
control wiring, and mistaken polarity.
Use a 500-volt megger to check the resistance between the power supply teminal block and ground to make sure that it is
at least 1.0MΩ.
Attention:
Do not use the air conditioner if resistance is less than 1.0MΩ.
-CENTRALLY CONTROLLED-
POWER
STAND BY
ON
DEFROST
CHECK DRY
HEAT AUTO
HEAT COOL
CHECK SET
WARMER
SET TEMP F TEMPERATURE
TIMER OFF
AUTO STOP TIMER MODE
HR
AUTO START
LOW HIGH FAN SPEED LOW/HIOGH
AIR
UP/DOWN
DISCHARGE
F
AUTO RETURN
CHECK TEST RUN CHECK
MITSUBISHI ELECTRIC
Displayed during test run
Indoor coil temperaure code Display
42
ON/OFF
COOL/DRY
COOLER
HOURS
SWING
STOP
TEST RUN
This setting will stop the air conditioner in 8 hours.
With the lapes of time, time display changes in 1 hour units, showing remaining time.
ON/OFF
COOL/DRY
COOLER
HOURS
SWING
STOP
TEST RUN
TEST RUN button
<Timer function>
AUTO STOP ·········The air conditioner stops after the set time lapses.
AUTO START ········The air conditioner starts after the set time lapses.
AUTO OFF ············Timer is not active.
<How to operate>
1. Press POWER ON/OFF button.
2. Press TIMER HOURS button to select AUTO STOP or AUTO
START.
3. Press TIMER HOURS button to set desired time.
Time setting is in 1 hour units for up to 24 hours.
Each time HOURS button is pressed, set time increases by 1 hour.
When HOURS button is pressed and held, the set time increases
by 1 hour every 0.5 seconds.
4. To cancel the timer operation, press POWER ON / OFF button.
<How to operate>
1. Turn ON main breaker.
2. Press TEST RUN button twice. "TEST RUN" is displayed on
remote controller.
3. Press COOL / DRY button to check that cool air is being
discharged.
4. Press AIR DISCHARGE UP / DOWN button to check auto
vane operation.
5. Check outdoor fan operation.
6. Check compressor operation referring to the indoor coil
temperature code displayed on the remote controller. (See
next page.)
7. The test run works for 2 hours and stops automatically. To
cancel the test run, press POWER ON / OFF button or
TIMER MODE button.
8. After checking, turn OFF the main breaker.