Daikin SkyAir RZQ18PVJU, Руководство по установке

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English 16
<Cautions on check operation>
If the air conditioner is started within about 12 minutes after •
the power of the indoor/outdoor unit is turned on, the H2P
indicator lights and the compressor does not run.
Confi rm that the LED status is as shown in the table in (2) in
“
9-1 Power on and check operation ” before starting the air
conditioner.
The air conditioner may require about 10 minutes maximum
•
until it can start the compressor after start of operation.
This period of time is required to homogenize the refrigerant
status, and does not indicate any failure.
The check operation does not provide any means of check-
•
ing the indoor units individually. For that purpose, perform
the normal operation using the remote controller after fi nish-
ing the check operation.
The check operation is not available in any other mode such
•
as the recovery mode.
Before running a check on the unit, changing the indoor
•
remote controller settings might cause the error code “UF” to
be displayed and prevent a proper check to be run.
Checks in normal operation 9-2
After fi nishing the check operation, operate the air condi- •
tioner normally.
(Heating is not available if the outside air temperature is
75 °F or more. Refer to the operation manual supplied
together with the unit.)
Confi rm that the indoor and outdoor units are operating
•
normally.
(If a knocking sound is heard in the liquid compression of
the compressor, stop the air conditioner immediately and
energize the crankcase heater for a suffi cient period of time,
then start the operation again.)
Run the indoor unit one by one in turn, and confi rm that the
•
corresponding outdoor unit is running.
Check to see if cold (or hot) air is coming out of the indoor
•
unit.
Press the fan direction button and fan speed control button
•
on the remote controller to see if the fan is operating nor-
mally.
<Cautions for normal operation check>
Once stopped, the compressor will not start for about •
5 minutes even if the “ ON/OFF ” button on the remote con-
troller is pressed.
When the system operation is stopped by the remote con-
•
trol, the outdoor units may continue to operate for a further
3 minutes.
If the system has not undergone the check operation by the
•
test operation button since it was fi rst installed, a malfunc-
tion code “U3” is displayed.
In this case, perform the check operation by referring to
“
9-1 Power on and check operation ”.
When a malfunction code is displayed in the remote
controller
(Check a malfunction code in the remote controller connected
to the indoor unit.)
Malfunction
code
Cause Solution
E3
The stop valves in
the outdoor unit
remain closed.
Open the stop valve on both the
gas and liquid lines.
The refrigerant is
overcharged.
Calculate again the required
amount of refrigerant to be charged
based on the piping length, recover
the refrigerant using the refrigerant
recovery device, then achieve
proper amount of refrigerant.
E4
F3
The stop valves in
the outdoor unit
remain closed.
Open the stop valve on both the
gas side and liquid side.
The operation
mode on the
remote controller
was changed
before the check
operation.
Set the operation mode on all
indoor unit remote controllers to
“cooling.”
The refrigerant is
insuffi cient.
Check whether additional •
refrigerant charge has been
fi nished correctly.
Calculate again the required
•
amount of refrigerant to be
charged based on the piping
length, then charge additionally
proper amount of refrigerant.
F6
The refrigerant is
overcharged.
Calculate again the required
amount of refrigerant to be charged
based on the piping length, recover
the refrigerant using the refrigerant
recovery device, then achieve
proper amount of refrigerant.
U3
The check
operation has not
performed.
Perform the check operation.
U4
The power is not
supplied to the
outdoor unit.
Connect correctly the power supply
wiring of the outdoor unit.
UA
Improper type of
indoor unit is
connected. Check the type of indoor unit
currently connected. If it is not
proper, replace it with proper one.
UF
The stop valves in
the outdoor unit
remain closed.
Open the stop valve on both the
gas and liquid lines.
The piping and
wiring of the
indoor unit are
not connected
correctly to the
outdoor unit.
Confi rm that the piping and wiring
of the indoor unit are connected
correctly to the outdoor unit.
The operation
mode on the
remote controller
was changed
before the check
operation.
Set the operation mode on indoor
unit remote controller to “cooling.”
UH
The transmission
wiring is not
connected
correctly. Connect correctly the transmission
wiring to the F1 and F2 (TO IN/D
UNIT) terminals on the PC board
(A1P) in the outdoor unit.
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