Toshiba MMW-AP0271LQ-E Service Manual page 7

WARNING
Before starting to repair the hot water module, read carefully through the Service Manual, and repair the hot
water module by following its instructions.
Only qualified service person (*1) is allowed to repair the hot water module.
Repair of the hot water module by unqualified person may give rise to a fire, electric shocks, injury, water leaks
and / or other problems.
Do not use any refrigerant different from the one specified for complement or replacement.
Otherwise, abnormally high pressure may be generated in the refrigeration cycle, which may result in a failure
or explosion of the product or an injury to your body.
Only a qualified installer (*1) or qualified service person (*1) is allowed to carry out the electrical work of the hot
water module.
Under no circumstances must this work be done by an unqualified individual since failure to carry out the work
properly may result in electric shocks and / or electrical leaks.
When transporting the hot water module, wear shoes with protective toe caps, protective gloves and other
protective clothing.
When connecting the electrical wires, repairing the electrical parts or undertaking other electrical jobs, wear
gloves to provide protection for electricians, insulating shoes and clothing to provide protection from electric
shocks.
Failure to wear this protective gear may result in electric shocks.
Electrical wiring work shall be conducted according to law and regulation in the community and installation
manual. Failure to do so may result in electrocution or short circuit.
General
When working at heights, use a ladder which complies with the ISO 14122 standard, and follow the procedure
in the ladder's instructions.
Also wear a helmet for use in industry as protective gear to undertake the work.
When working at heights, put a sign in place so that no-one will approach the work location, before proceeding
with the work.
Parts and other objects may fall from above, possibly injuring a person below.
Do not touch the plate heat exchanger of the unit. You may injure yourself if you do so. If the plate heat
exchanger must be touched for some reason, first put on protective gloves and safety work clothing, and then
proceed.
Do not climb onto or place objects on top of the outdoor unit.
You may fall or the objects may fall off of the outdoor unit and result in injury.
When transporting the hot water module, wear shoes with additional protective toe caps.
When transporting the hot water module, do not take hold of the bands around the packing carton.
You may injure yourself if the bands should break.
Be sure that a heavy unit (10 kg or heavier) such as a compressor is carried by two persons.
Before troubleshooting or repair work, check the earth wire is connected to the earth terminals of the hot water
module, 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
wires.
Be sure to connect earth wire. (Grounding work) Incomplete grounding causes an electric shock.
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
Use specified
/ or a fire.
parts.
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 hot water module and the service panel of the outdoor unit
removed in order to find out exactly where the trouble lies, put a sign in place so that no-one will approach the
Do not bring a
work location before proceeding with the work. Third-party individuals may enter the work site and receive
child close to
electric shocks if this warning is not heeded.
the equipment.
Connect the cut-off lead wires with crimp contact, etc., put the closed end side upward and then apply a
watercut method, otherwise a leak or production of fire is caused at the users f side.
Insulating
measures
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