4-1. PURGING PROCEDURES AND LEAK TEST
1) Remove service port cap of stop valve on the side of the outdoor unit gas pipe. (The stop
valves are fully closed and covered in caps in initial state.)
2) Connect gauge manifold valve and vacuum pump to service port of stop valve on the gas
pipe side of the outdoor unit.
4-2. TEST RUN
1) Insert power supply plug into the power outlet and/or turn on the
breaker.
2) Press the E.O. SW once for COOL, and twice for HEAT operation.
Test run will be performed for 30 minutes. If the left lamp of the
operation indicator blinks every 0.5 seconds, inspect the indoor/
outdoor unit connecting wire (A) for mis-wiring. After the test run,
emergency mode (set temperature 24ºC) will start.
3) To stop operation, press the E.O. SW several times until all LED
lamps turn off. Refer to operating instructions for details.
4) Checking the remote (infrared) signal reception
• Press the OFF/ON button on the remote controller (3) and check
that an electronic sound is heard from the indoor unit. Press the
OFF/ON button again to turn the air conditioner off.
• Once the compressor stops, the restart preventive device oper-
ates so the compressor will not operate for 3 minutes to protect
the air conditioner.
Stop valve for
GAS
Stop valve cap
(Torque 19.6 to
29.4 N•m, 200
to 300 kgf•cm)
Vacuum pump (or the vacuum
pump with the function to
SUHYHQWWKHEDFNÀRZ
Gauge manifold valve
(for R32, R410A)
Compound pressure gauge
(for R32, R410A)
–
0.101 MPa
(
–
760 mmHg)
Handle
Low
Handle High
Adapter for
preventing the
EDFNÀRZ
Charge hose
(for R32, R410A)
*Close
*Open
Hexagonal wrench
Precautions when using the control valve
When attaching the control valve
to the service port, valve core may
deform or loosen if excess pressure
is applied. This may cause gas leak.
Service port
Body
Close
<R32>
Open
Control
valve
A
When attaching the control valve to
the service port, make sure that the
valve core is in closed position, and
then tighten part A. Do not tighten
part A or turn the body when valve
core is in open position.
Service port cap
(Torque 13.7 to
17.7 N•m, 140 to
180 kgf•cm)
*4 to 5 turns
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4) Check the vacuum with gauge manifold valve, then close gauge manifold valve, and stop
the vacuum pump.
5) Leave as it is for one or two minutes. Make sure pointer gauge manifold valve remains
LQWKHVDPHSRVLWLRQ&RQ¿UPWKDWSUHVVXUHJDXJHVKRZV±03D>*DXJH@±
mmHg).
6) Remove gauge manifold valve quickly from service port of stop valve.
Stop valve
for LIQUID
Caution:
• After test run or remote signal reception check, turn off the unit with the E.O. SW or
the remote controller before turning off the power supply. Not doing so will cause the
unit to start operation automatically when power supply is resumed.
To the user
• After installing the unit, make sure to explain the user about auto restart function.
• If auto restart function is unnecessary, it can be deactivated. Consult the service
representative to deactivate the function. Refer to the service manual for details.
4. PURGING PROCEDURES, LEAK TEST, AND TEST RUN
Pressure gauge
(for R32, R410A)
Emergency operation
switch (E.O. SW)
Charge
hose
Make sure to re-
place the cap after
the operation.
4-4. SETTING THE INSTALLATION POSITION
Be sure to set the remote controller in accordance with the installed position of the indoor
unit.
Installation position:
Left:
Distance to objects (wall, cabinet, etc.) is less than
50 cm to the left
Center: Distance to objects (wall, cabinet, etc.) is more
than 50 cm to the left and right
Right: Distance to objects (wall, cabinet, etc.) is less than
50 cm to the right
(Left) (Center) (Right)
Note:
The installation position can be set only when all the following conditions are met:
• The remote controller is powered off.
• Weekly timer is not set.
• Weekly timer is not being edited.
1) Hold down
on the remote controller for 2 seconds to enter the position setting
mode.
2) Select the target installation position by pressing
. (Each press of the
displays
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3) Press
to complete the position setting.
Installation position
Left
Center
Right
Remote controller
display
4-5. EXPLANATION TO THE USER
• Using the OPERATING INSTRUCTIONS, explain to the user how to use the air conditioner
KRZWRXVHWKHUHPRWHFRQWUROOHUKRZWRUHPRYHWKHDLU¿OWHUVKRZWRFOHDQSUHFDXWLRQV
for operation, etc.).
• Recommend the user to read the OPERATING INSTRUCTIONS carefully.
WARNING
7RDYRLGULVNRI¿UHPDNHVXUHWKDWWKHUHDUHQRÀDPPDEOHKD]DUGVRULJQLWLRQ
risks before opening the stop valves.
7) After refrigerant pipes are connected and evacuated, fully open all stop valves on both
sides of gas pipe and liquid pipe. Operating without fully opening lowers the performance
and this causes trouble.
8) Refer to 1-3., and charge the prescribed amount of refrigerant if needed. Be sure to charge
slowly with liquid refrigerant. Otherwise, composition of the refrigerant in the system may
be changed and affect performance of the air conditioner.
9) Tighten cap of service port to obtain the initial status.
10) Leak test
4-3. AUTO RESTART FUNCTION
This product is equipped with an auto restart function. When the power supply is stopped
during operation, such as during blackouts, the function automatically starts operation in
the previous setting once the power supply is resumed. (Refer to the operating instructions
for details.)
5. CONNECTION SETUP OF THE Wi-Fi INTERFACE
This product is equipped with the Wi-Fi Interface as standard.
Refer to the SETUP QUICK REFERENCE GUIDE and OPERATING INSTRUCTIONS provided with the indoor unit for connection with the route
r.
