Evacuating; Wiring Connection; Electrical Work - Toshiba RAS-B10J2FVG-E Installation Manual

Evacuating

After the piping has been connected to the indoor unit, you can perform
vacuuming together at once.
VACUUMING
Evacuate the air in the connecting pipes and in the indoor unit using a
vacuum pump. Do not use the refrigerant in the outdoor unit. For details,
see the manual of the vacuum pump.
Using a vacuum pump
Be sure to use a vacuum pump with counter-fl ow prevention function so
that inside oil of the pump does not fl ow backward into pipes of the air
conditioner when the pump stops.
(If oil inside of the vacuum pump enters the air conditioner, which use
R32 or R410A, refrigeration cycle trouble may happen.)
1. Connect the charge hose from the manifold valve to the service port of
the packed valve at gas side.
2. Connect the charge hose to the port of the vacuum pump.
3. Open fully the low pressure side handle of the gauge manifold valve.
4. Operate the vacuum pump to start evacuating. Perform evacuating for
about 15 minutes if the piping length is 20 meters. (15 minutes for
20 meters) (assuming a pump capacity of 27 liters per minute)
Then confi rm that the compound pressure gauge reading is –101 kPa
(–76 cmHg).
5. Close the low pressure side valve handle of the gauge manifold valve.
6. Open fully the valve stem of the packed valves (both gas and liquid
sides).
7. Remove the charging hose from the service port.
8. Securely tighten the caps on the packed valves.
Compound pressure gauge
–101 kPa (–76 cmHg)
Handle Lo
Charge hose
Connecting pipe
Service port (Valve core (Setting pin))
Packed valve at liquid side
CAUTION
• KEEP IMPORTANT 6 POINTS FOR PIPING WORK.
(1) Take away dust and moisture (inside of the connecting pipes).
(2) Tighten the connections (between pipes and unit).
(3) Evacuate the air in the connecting pipes using a VACUUM PUMP.
(4) Check gas leak (connected points).
(5) Be sure to fully open the packed valves before operation.
(6) Reusable mechanical connectors and fl ared joints are not allowed
indoors. When mechanical connectors are reused indoors, sealing
parts shall be renewed. When fl ared joints are reused indoors, the
fl are part shall be refabricated.
Packed valve handling precautions
• Open the valve stem until it touches the stopper. Once it is in contact with
the stopper, refrain from applying any more force than is necessary.
• Securely tighten the valve stem cap with torque in the following table:
Gas side 50 to 62 N·m
(Ø12.70 mm) (5.0 to 6.2 kgf·m)
Gas side 33 to 42 N·m
(Ø9.52 mm) (3.3 to 4.2 kgf·m)
Liquid side 14 to 18 N·m
(Ø6.35 mm) (1.4 to 1.8 kgf·m)
14 to 18 N·m
Service port
(1.4 to 1.8 kgf·m)
Pressure gauge
Manifold valve
Handle Hi
(Keep full closed)
Charge hose
Vacuum pump adapter for
counter-fl ow prevention
Vacuum
pump
Packed valve at gas side
Hexagon wrench
is required.

Wiring Connection

1. Remove the valve cover, the electric parts cover and the cord clamp from
the outdoor unit.
2. Connect the connecting cable to the terminal as identifi ed by the
matching numbers on the terminal block of indoor and outdoor unit.
3. Insert the power cord and the connecting cable fully into the terminal
block and secure it tightly with screws.
4. Use vinyl tape, etc. to insulate the cords which are not going to be used.
Locate them so that they do not touch any electrical or metal parts.
5. Secure the power cord and the connecting cable with the cord clamp.
6. Attach the electric parts cover and the valve cover on the outdoor unit.

Electrical Work

1. The supply voltage must be the same as the rated voltage of the air
conditioner.
2. Prepare the power source for exclusive use with the air conditioner.
Model RAS-B10J2FVG-E
Power source 220–240V ~ 50Hz
Maximum running
6.75A
current
Circuit breaker
rating
Power cord
Connecting cable
w When using a multi-system outdoor unit is used, refer to the installation
manual provided with the model concerned.
Stripping length of the connecting cable
Terminal
block
Connecting cable Power cord
CAUTION
1. The power supply must be same as the rated of air conditioner.
2. Prepare the power source for exclusive use with air conditioner.
3. Circuit breaker must be used for the power supply line of this air
conditioner.
4. Be sure to comply power supply and connecting cable for size and
wiring method.
5. Every wire must be connected fi rmly.
6. Perform wiring works so as to allow a general wiring capacity.
7. Wrong wiring connection may cause some electrical part burn out.
8. Incorrect or incomplete wiring is carried out, it will cause an ignition
or smoke.
9. This product can be connected to main power supply.
Connection to fi xed wiring : A switch which disconnects all poles and
has a contact separation at least 3 mm must be incorporated in the
fi xed wiring.
12
RAS-B13J2FVG-E
220–240V ~ 50Hz
7.50A
10A 10A
H07RN-F or 60245 IEC66
(1.5 mm 2 or more)
H07RN-F or 60245 IEC66
(1.5 mm 2 or more)
1 2 3
40
30
Earth line
Connecting cable
RAS-B18J2FVG-E
220–240V ~ 50Hz
10.40A
15A
H07RN-F or 60245
IEC66
(2.5 mm 2 or more)
L N
40
30
Power cord