Toshiba RAV-M242A, Руководство по обслуживанию

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– 8 –
Model
Connectable indoor Permissible piping Permissible piping
Remarks
unit number length ( 1, 2) head (H)
RAS-13SK-E
2 15m 5m Fig. 5-1
(or RAS-13SKX)
5-1. Refrigerant Piping
5-1-1. Permissible Piping Length and Head
The minimum inter-unit refrigerant piping length shall
be 2m.
Limit the number of bends in the refrigerant piping to
10 or less.
Fig. 5-1
Table 5-1
5-1-2. Piping Material and Sizes
Table 5-2
Piping material
Phosphate deoxi-
dized copper
seamless pipes for
air conditioners
Model
RAS-
13SK-E
(or RAS-
13SKX)
Piping size (mm)
Larger Smaller
12,7 6,4
5-1-3. Air Purging
• Subject the refrigerant tube of outdoor and indoor
units to air purge with a vacuum pump.
• Do not carry out this air purge by using the refrig-
erant filled in the outdoor unit.
• To handle valves, a 5mm hexagon wrench is
needed.
5-1-4. Refrigerant Pipe Connecting Position
H
H
Unit A
2
1
RAS-13SK-E
(or RAS-13SKX)
Unit B
RAS-13SK-E
(or RAS-13SKX)
Model Addition per meter
RAV-M242A-E
No need
(or RAV-M242A)
Fig. 5-2
5-1-5. Additional Refrigerant Quantities
Table 5-3
Unit B
Unit A