Toshiba RAS-M18SA-E, Service Manual

Page: 30 / 58

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<Packed Valve Handling Precautions>
• Open the valve stem all the way out; so not try to
open it beyond the stopper.
• Securely tighten the valve stem cap with the wrench
or like.
• Valve stem cap tightening torque is as follows;
Gas pipes side (ø9.52) : 29.4 N•m (3.0 kgf•m)
Liquid pipe side (ø6.35) : 16.2 N•m (1.7 kgf•m)
<A5 mm hexagon wrench is required.>
• Connect the refrigerant piping to the outdoor unit
as following figure.
• 2 packed valves in the bottom side are for the in-
door unit A and 2 packed valves in the upper side
are for the indoor unit B.
CAUTION
• Use power specified above table.
• Use with the power source connected to
each unit separately with a special circuit
set up for each.
• Do not get the wires and the pipes connect-
ing the indoor unit and outdoor unit mixed
up.
Fig. 8-5-7
8-5-3. Wiring Connection
• Perform wiring work so as to allow a generous wir-
ing capaciry.
(1) The supply voltage must be the same as the rated
voltage of the air conditioner.
(2) Prepare the power source for each unit.
Indoor unit
A
Outdoor unit
Indoor unit
B
Fuse or
breaker
Power cord Power cord
Power cord
Connecting
cable
Service
cap
connection
Electric parts
cover
Refrigerant piping
unit B
Refrigerant piping
unit A
Fig. 8-5-6
CAUTION
• Never carry out an air purge which utilizes
the refrigerant of the unit. It will result in
damage.
Always use a vacuum pump to evacuate air
from connecting pipes.
• KEEP IMPORTANT 4 POINTS FOR INSTAL-
LATION (PIPING WORK)
(1) Take away dust and moisture (Inside of the
connecting pipes.)
(2) Tight connection (between pipes and unit)
(3) Evacuate the air in the connecting pipes using
VACUUM PUMP.
(4) Check gas leak (connected points)
Evacuate the air for each indoor unit A and B.
Connect-
ing cable
Power cord
(outdoor
unit)
Power source
—
50 Hz
220/230/240V~
Single-Phase
Maximum
running
current
1 A
13 A
Fuse
rating
—
15 A
Wiring
0.75mm
2
or more
1.5mm
2
or more
Starting
current
—
32 A