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EN-21
EN-22
12
FUNCTIONS TO BE IMPLEMENTED LOCALLY
Handling Existing Pipe
When using the existing pipe, carefully check for the
following:
• Wall thickness (within the specified range)
• Scratches and dents
• Water, oil, dirt, or dust in the pipe
• Flare looseness and leakage from welds
• Deterioration of copper pipe and heat insulator
Cautions for using existing pipe
• Do not reuse a flare nut to prevent gas leaks.
Replace it with the supplied flare nut and then process
it to a flare.
• Blow nitrogen gas or use an appropriate means to
keep the inside of the pipe clean. If discolored oil or
much residue is discharged, wash the pipe.
• Check welds, if any, on the pipe for gas leaks.
When the pipe corresponds to any of the following, do
not use it. Install a new pipe instead.
• The pipe has been opened (disconnected from indoor
unit or outdoor unit) for a long period.
• The pipe has been connected to an outdoor unit that
does not use refrigerant R22, R410A or R407C.
• The existing pipe must have a wall thickness equal to
or larger than the following thicknesses.
• Do not use any pipe with a wall thickness less than
these thicknesses due to insufficient pressure
capacity.
• To use an existing Ø19.0 mm pipe, set bit 5 of SW801
(switch for existing pipe) on the P.C. board of the
outdoor unit to ON. In this case, the heating
performance may be reduced depending on the
outside air temperature and room temperature.
Recovering Refrigerant
• Use refrigerant recovery switch SW802 on the P.C.
board of the outdoor unit to recover refrigerant when
the indoor or outdoor unit is moved.
Procedure
1.
Turn on the power of the air conditioner.
2.
Select the FAN mode for indoor unit operation with
the remote controller.
3.
Press refrigerant recovery switch SW802 on the
P.C. board of the outdoor unit to drive the air
conditioner into the forced cooling mode for up to 10
minutes. Open the valve to start refrigerant
recovery.
4.
Upon completion of refrigerant recovery, close the
valve and press SW802 for at least 1 second to stop
operation.
5.
Turn off the power.
DANGER
Be careful of electric shock because the P.C. board has
an electrical current running through it.
Reference outside
diameter (mm)
Wall thickness (mm)
Ø9.5
0.8
Ø15.9
1.0
Ø19.0
1.0
SW801 No.5
1 2 3 4
ON
1 2
4
ON
5 6
3
6
5
123456
ON
Refrigerant
recovery
switch
SW802
Existing pipe
switch
SW801
P.C Board
13
TROUBLESHOOTING
You can perform fault diagnosis of the outdoor unit with the LEDs on the P.C. board of the outdoor unit in addition to
using the check codes displayed on the wired remote controller of the indoor unit.
Use the LEDs and check codes for various checks. Details of the check codes displayed on the wired remote
controller of the indoor unit are described in the Installation Manual of the indoor unit.
LED indication and code checking
LED indication
Cycle control P.C. board
Cause
LED indication
D800
D801
D802
D803
D800 :
Red
D801 :
Yellow
D802 :
Yellow
D803 :
Yellow
: Rapid flashing
: Off
: On
Heat exchanger sensor (TE) error
Suction sensor (TS) error
Discharge sensor (TD) error
Thermostat for compressor activated
Outdoor temperature sensor (TO) error
DC outdoor fan error (Upper side)
DC outdoor fan error (Lower side)
Communication error between IPDU (An abnormal
stop is performed.)
Comp. case thermo. operate – Serial signal error
Discharge temp. error
EEPROM error
Communication error between IPDU (An abnormal
stop is not performed.)
G-Tr short-circuit protection
Detect circuit error
Current sensor error
Comp. lock error
Comp. break down
Содержание RAV-SM1603AT-A
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