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10.4. AUTO RESTART FUNCTION
This model is equipped with the AUTO RESTART FUNCTION.
When the indoor unit is controlled with the remote controller, the operation mode,
set temperature, and the fan speed are memorized by the indoor controller board.
The auto restart function sets to work the moment the power has restored after
power failure, then, the unit will restart automatically.
Notes:
• The operation settings are memorized when 10 seconds have passed after
the remote controller was operated.
10.Test run
• If the main power is turned off or a power failure occurs while AUTO START/
STOP timer is active, the timer setting is cancelled. As this model is equipped
with the auto restart function, the air conditioner should start operating at
the same time that a power has restored.
• If the unit has been off with the remote controller before power failure, the
auto restart function does not work as the power button of the remote con-
troller is off.
• To prevent breaker off due to the rush of starting current, systematize other
home appliance not to turn on at the same time.
11.Maintenance
11.1. Gas charge (Fig. 11-1)
1. Connect gas cylinder to the service port of stop valve (3-way).
2. Execute air purge of the pipe (or hose) coming from refrigerant gas cylinder.
3. Replenish specified amount of refrigerant, while running the air conditioner
for cooling.
Note:
In case of adding refrigerant, comply with the quantity specified for the refrigerating
cycle.
Caution:
• Do not discharge the refrigerant into the atmosphere.
Take care not to discharge refrigerant into the atmosphere during installa-
tion, reinstallation, or repairs to the refrigerant circuit.
• For additional charging, charge the refrigerant from liquid phase of the gas
cylinder.
If the refrigerant is charged from the gas phase, composition change may
occur in the refrigerant inside the cylinder and the outdoor unit. In this case,
ability of the refrigerating cycle decreases or normal operation can be impos-
sible. However, charging the liquid refrigerant all at once may cause the com-
pressor to be locked. Thus, charge the refrigerant slowly.
To maintain the high pressure of the gas cylinder, warm the gas cylinder with warm
water (under 40°C) during cold season. But never use naked fire or steam.
B
A
G
H
K
L
M
I
J
C
D
E
F
A Indoor unit
B Union
C Liquid pipe
D Gas pipe
E Stop valve
F Outdoor unit
G Refrigerant gas cylinder operating valve
H Refrigerant gas cylinder for R410A with
siphon
I Refrigerant (liquid)
J Electronic scale for refrigerant charging
K Charge hose (for R410A)
L Gauge manifold valve (for R410A)
M Service port
Fig. 11-1
10.5. Indoor temperature position change function
(Fig. 10-3)
This model is equipped with the indoor temperature position change function. Detec-
tion of room temperature can be changed into remote controller’s internal sensor.
1 Power supply is turn off.
2 Cut the JP14 jumper wire of the indoor controller board with a pair of nippers.
A Indoor controller board
RC00J590B
52C
C412
C1
FAN2FAN1CNP
CNCCND
JP14
A
Fig. 10-3