Earthing; Finishing; Test Run; Annual Maintenance - Toshiba rav-sm1103at-e Installation Manual

Wiring diagram
* For details on the remote controller wiring/installation,
refer to the Installation Manual enclosed with the
remote controller.
Single system
Remote controller
Remote controller wiring
A B
Indoor side
1 2
Indoor/Outdoor connecting
wires
1 2
Outdoor side
L N
Power supply
Simultaneous twin system
Remote
controller
inter-unit
Remote controller
wiring
Remote controller
wiring
A B
Indoor
Indoor side
side
1 2 3
Indoor/Outdoor
connecting wires
1 2 3
Outdoor side
L N
Power supply
* Use 2-core shield wire (MVVS 0.5 to 2.0 mm² or more)
for the remote controller wiring in the simultaneous
twin system to prevent noise problems. Be sure to
connect both ends of the shield wire to earth leads.
* Connect earth wires for each indoor unit in the
simultaneous twin system.
EN-27
Power supply
terminal block
L N
Earth screw
Power wire
3
3
Stripping length power cord and connecting wire
L N 10
10
50
40 30
(mm)
Earth line
Power wire
A B
1 2 3
Indoor
power
inter-unit
wiring
8

EARTHING

To Indoor unit
terminal block
Connect the earth line properly following applicable technical standards.
Connecting the earth line is essential to preventing electric shock and to reducing noise and electrical charges on the
1 2 3
outdoor unit surface due to the high-frequency wave generated by the frequency converter (inverter) in the outdoor
unit.
Earth screw
If you touch the charged outdoor unit without an earth line, you may experience an electric shock.
9
Connecting wire

FINISHING

After the refrigerant pipe, inter-unit wires, and drain pipe have been connected, cover them with finishing tape and
clamp them to the wall with off-the-shelf support brackets or their equivalent.
1 2 3 10
Keep the power wires and indoor/outdoor connecting wires off the valve on the gas side or pipes that have no heat
10
insulator.
40
10

TEST RUN

Earth line
Connecting wire
• Turn on the leakage breaker at least 12 hours before starting a test run to protect the compressor during
startup.
To protect the compressor, power is supplied from the 220-240 VAC input to the unit to preheat the compressor.
• Check the following before starting a test run:
• That all pipes are connected securely without leaks.
• That the valve is open.
If the compressor is operated with the valve closed, the outdoor unit will become overpressurized, which may
damage the compressor or other components.
If there is a leak at a connection, air can be sucked in and the internal pressure further increases, which may cause
a burst or injury.
• Operate the air conditioner in the correct procedure as specified in the Owner's Manual.
11

ANNUAL MAINTENANCE

• For an air conditioning system that is operated on a regular basis, cleaning and maintenance of the indoor/outdoor
units are strongly recommended.
As a general rule, if an indoor unit is operated for about 8 hours daily, the indoor/outdoor units will need to be
cleaned at least once every 3 months. This cleaning and maintenance should be carried out by a qualified service
person.
Failure to clean the indoor/outdoor units regularly will result in poor performance, icing, water leaking and even
compressor failure.
- 14 - EN-28