Toshiba CEILING TYPE, CONCEALED DUCK TYPE service manual Proceeding with the repair work

	Even if the circuit breaker has been set to the OFF position before the service panel is removed
	and the electrical parts are repaired, you will still risk receiving an electric shock.
	For this reason, short-circuit the high-voltage capacitor terminals to discharge the voltage before
Execute	proceeding with the repair work.
discharge	For details on the short-circuiting procedure, refer to the Service Manual.
between	You may receive an electric shock if the voltage stored in the capacitors has not been sufficiently
terminals.	discharged.
	Place a “Work in progress” sign near the circuit breaker while the installation, maintenance, repair
	or removal work is being carried out.
Prohibition	There is a danger of electric shocks if the circuit breaker is set to ON by mistake.
	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
Stay on	avoid touching any live parts.
protection	You may receive an electric shock if you fail to heed this warning. Only qualified service person
	(∗1) is allowed to do this kind of work.

WARNING

	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 specified	Use of any parts which do not satisfy the required specifications may give rise to electric shocks,
parts.	smoking and/or a fire.
	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
Do not bring	"Keep out" signs around the work site before proceeding.
a child close to	Third-party individuals may enter the work site and receive electric shocks if this warning is not
the equipment.	heeded.
	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.
Insulating
measures
	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
No fire	refrigerant gas may catch fire.
	2) Do not use a welder in the closed room.
	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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