Toshiba RAV-SM564UT-E Service Manual page 55

Toshiba SDI / DI tuotteiden jälleenmyyjä pääkaupunkiseudulla on Jäähdytinpalvelu RefGroup Oy.
7-6-6. Handling of Existing Pipe
When using the existing pipe, carefully check it 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 the flare to prevent gas leak.
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 leak.
When the pipe corresponds to any of the following,
do not use it. Install a new pipe instead.
• The pipe has been open (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 thickness.
Reference outside diameter
(mm)
Ø9.5
Ø15.9
Ø19.1
• Never use any pipe with a wall thickness less than
these thicknesses due to insufficient pressure
capacity.
RAV-SP1104AT-E, RAV-SP1404AT-E
• To use an existing Ø19.1 mm pipe, set bit 3 of
When shipped from factory
RAV-SM1603AT-E
• To use an existing Ø19.1 mm pipe, set bit 5 of
Wall thickness
(mm)
0.8
1.0
1.0
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– 55 –
SW802 (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.
SW802
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.
SW801 No.5
ON
1 2 3 4 5 6
Revised 2: Jun., 2008
When using existing pipe
ON
1 2 3 4 5 6