Evacuating; Wiring Connection; Electrical Work - Toshiba RAS-10J2FVG-TR 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-flow prevention function so
that inside oil of the pump does not flow 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, 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 confirm
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
Packed valve at gas side
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 fared joints are not allowed
indoors. When mechanical connectors are reused indoors, sealing
parts shall be renewed. When fared joints are reused indoors, the
fare 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
•
(Ø6.36 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-flow prevention
Vacuum
pump
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 identified 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-10J2FVG-TR RAS-13J2FVG-TR RAS-18J2FVG-TR
Power source 220–240V ~ 50Hz 220–240V ~ 50Hz 220–240V ~ 50Hz
Maximum running
6.75A
current
Circuit breaker
10A
rating
H07RN-F or 60245 IEC66
Power cord
Connecting cable H07RN-F or 60245 IEC66 (1.5 mm
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
Wrong wiring connection may cause some electrical parts burn out.
●
Be sure to comply with local rule on running the wire from indoor unit
●
to outdoor unit (size of wire and wiring method, etc.).
Every wire must be connected firmly.
●
If incorrect or incomplete wiring is carried out, it will cause an ignition
●
or smoke.
Prepare the power supply for exclusive use with the air conditioner.
●
This product can be connected to the mains.
●
Connection to fixed wiring : A switch which disconnects all poles and
has a contact separation of at least 3 mm must be incorporated in the
fixed wiring.
13
7.50A 10.40A
15A
H07RN-F or
60245 IEC66
(1.5 mm or more)
2
(2.5 mm
or more)
2
1 2 3
40
30
30
Earth line
Connecting cable
EN
15A
or more)
2
L N
40
Power cord