9
■
English
Pump Down Operation
In order to protect the environment, be sure to pump down when relocating or disposing of the unit.
1) Remove the valve cap from liquid stop valve and gas stop valve.
2) Carry out forced cooling operation.
3) After 5 to 10 minutes, close the liquid stop valve with a hexagonal wrench.
4) After 2 to 3 minutes, close the gas stop valve and stop forced cooling operation.
Gas
stop valve
Valve cap
Hexagonal
wrench
Close
Liquid
stop valve
Service port
Forced cooling operation
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Using the indoor unit ON/OFF switch
Press the indoor unit ON/OFF switch for at least 5 seconds. (The operation will start.)
• Forced cooling operation will stop automatically after around 15 minutes.
To stop the operation, press the indoor unit ON/OFF switch.
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Using the indoor unit’s remote controller
• Please read about the procedure in “Trial operation from remote control
-
ler” in the installation manual attached to the indoor unit. Please set the
operation mode to “cooling”.
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Using the outdoor unit forced cooling operation switch (with standby
electricity saving function turned off)
Forced cooling operation can be performed when the outdoor unit forced cooling
operation switch is pressed within around 3 minutes after power is supplied.
Push on “
” (SW1) with a screwdriver. (The operation will start.)
• Forced cooling operation will stop automatically after around 15 minutes.
To stop the operation, press the switch (SW1).
1
2
3
The selective connector for standby electricity
saving in use (with standby electricity saving
function turned off)
Push
Screwdriver
Power supply
terminal block
Forced cooling
operation
switch (SW1)
CAUTION
• When pressing the switch, do not touch the terminal block. It has a high voltage, so doing so may cause electric shock.
• After closing the liquid stop valve, close the gas stop valve within 3 minutes, then stop the forced cooling operation.
Facility Setting (cooling at low outdoor
temperature)
This function is limited only for facilities (the target of air conditioning is equipment (such as computer)). Never use it in a
residence or office (the space where there is a human).
1) Cutting jumper 4 (J4) on the circuit board will expand the operation range down to –15°C. However it will stop if the outdoor
temperature drops below –20°C and start back up once the temperature rises again.
1
2
3
S70
S40
S2
S90
J5
J4
J3
Cut J4 with nippers
or a similar tools.
CAUTION
• If the outdoor unit is installed where the heat exchanger of the unit is exposed to direct wind, provide a windbreak wall.
• Intermittent noises may be produced by the indoor unit due to the outdoor fan turning on and off when using facility settings.
• Do not place humidifiers or other items which might raise the humidity in rooms where facility settings are being used.
A humidifier might cause dew jumping from the indoor unit outlet vent.
• Cutting jumper 4 (J4) sets the indoor fan tap to the highest position. Notify the user about this.
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