Earthing; Finishing; Test Run; Annual Maintenance - Toshiba RAV-GE6001A8P-T Installation Manual

8

Earthing

WARNING
Be sure to connect the earth wire. (grounding work)
Incomplete grounding may cause an electric shock.
Connect the earth wire properly following applicable technical standards.
Connecting the earth wire is essential to preventing electric shock and to reducing noise and electrical charges on
the outdoor unit surface due to the high-frequency wave generated by the frequency converter (inverter) in the
outdoor unit.
If you touch the charged outdoor unit without an earth wire, you may experience an electric shock.
9

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.
Keep the power wires and system interconnection wires off the valve on the gas side or pipes that have no heat
insulator.
10

Test run

• 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 380-415 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.
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12

Air conditioner operating conditions

For proper performance, operate the air conditioner under the following temperature conditions:
Cooling operation Dry bulb temp.
If air conditioner is used outside of the above conditions, safety protection may work.
13

Recovering the refrigerant

WARNING
• Don't admit air into refrigerant during recovery.
Otherwise, the pressure in the freezing cycle might increase abnormally. Serious injury could occur if it bursts.
[Recovering the refrigerant]
• You need to recover the refrigerant when moving or repairing the indoor and/or outdoor units. You cannot do
this while the air conditioner is running in cooling mode because a protective device will be tripped. Be sure to
recover the refrigerant in test run mode.
• Use a refrigerant recovery device when the amount of refrigerant to be recovered exceeds the initial amount of
1.5 kg.
■ Instructions (Recovery to the Air Conditioner)
1.
Power on the air conditioner.
2. To set the air conditioner to test run mode, hold down the Temporary button for more than 10 seconds.
Then, you will hear a "Pi" sound, and the light (green), light (green) and light (orange) lamps will blink quickly to
indicate that the air conditioner has gone into a test run mode.
3. Wait for one minute to elapse, and then close the valve of liquid side.
4. It is recommended to attach a pressure gauge at the service port so that you can determine when refrigerant
recovery has been completed.
5.
Upon completion, close the valve of gas side.
6. Stop the air conditioner.
7. Power off the air conditioner.
• Complete Steps 2 to 6 within fi ve minutes. Otherwise, the protective device might trip, causing the outdoor
unit to stop.
• If the recovery operation has been interrupted by the protective device, turn off the air conditioner. In this
case, use a refrigerant recovery device.
15°C to 46°C
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