Toshiba RAS-M07G3DV-E Service Manual page 7

Place a "Work in progress" sign near the circuit breaker while the installation, maintenance, repair or
removal work is being carried out. There is a danger of electric shocks if the circuit breaker is set to ON by
mistake.
When checking the electric parts, removing the cover of the electric parts box of Indoor Unit and/or front
panel of Outdoor Unit inevitably to determine the failure, put a sign "Do not enter" around the site before the
work. Failure to do this may result in third person getting electric shock.
Prohibition
Before operating the air conditioner after having completed the work, check that the electrical parts box
cover of the indoor unit and service panel of the outdoor unit are closed, and set the circuit breaker to the
ON position. You may receive an electric shock if the power is turned on without first conducting these
checks.
If, in the course of carrying out repairs, it becomes absolutely necessary to check out the electrical parts
with the electrical parts box cover of one or more of the indoor units and the service panel of the outdoor unit
removed in order to find out exactly where the trouble lies, wear insulated heat-resistant gloves, insulated
boots and insulated work overalls, and take care to avoid touching any live parts. You may receive an
Stay on
electric shock if you fail to heed this warning.
protection
Only qualified service person (*1) is allowed to do this kind of work.
Before troubleshooting or repair work, check the earth wire is connected to the earth terminals of the main
unit, otherwise an electric shock is caused when a leak occurs. If the earth wire is not correctly connected,
contact an electric engineer for rework.
After completing the repair or relocation work, check that the ground wires are connected properly.
Check earth
Be sure to connect earth wire. (Grounding work) Incomplete grounding causes an electric shock.
wires.
Do not connect ground wires to gas pipes, water pipes, and lightning rods or ground wires for telephone
wires.
Do not modify the products. Do not also disassemble or modify the parts.
It may cause a fire, electric shock or injury.
Prohibition of
modification.
When any of the electrical parts are to be replaced, ensure that the replacement parts satisfy the
specifications given in the Service Manual (or use the parts contained on the parts list in the Service
Manual). Use of any parts which do not satisfy the required specifications may give rise to electric shocks,
smoking and/or a fire.
Use specified
Replace components only with parts specified by the manufacturer. Other parts may result in the ignition of
parts.
refrigerant in the atmosphere from a leak.
If, in the course of carrying out repairs, it becomes absolutely necessary to check out the electrical parts
with the electrical parts box cover of one or more of the indoor units and the service panel of the outdoor unit
removed in order to find out exactly where the trouble lies, place Keep out signs around the work site before
Do not bring a
proceeding. Third-party individuals may enter the work site and receive electric shocks if this warning is not
child close to
heeded.
the equipment.
Connect the cut-off lead wires with crimp contact, etc., put the closed end side upward and then apply a
water-cut method, otherwise a leak or production of fire is caused at the users' side.
Under no circumstances, the power supply wire or the indoor and outdoor connecting wire must not be
connected in the middle (Connection using a solder less terminal etc.)
Insulating
Connection trouble in the places where the wire is connected in the middle may give rise to smoking and/or
measures
a fire.
When performing repairs using a gas burner, replace the refrigerant with nitrogen gas because the oil that
coats the pipes may otherwise burn.
When repairing the refrigerating cycle, take the following measures.
1) Be attentive to fire around the cycle.
When using a gas stove, etc., be sure to put out fire before work; otherwise the oil mixed with refrigerant
gas may catch fire.
2) Do not use a welder in the closed room.
No fire
When using it without ventilation, carbon monoxide poisoning may be caused.
3) Do not bring inflammables close to the refrigerant cycle, otherwise fire of the welder may catch the
inflammables.
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