Toshiba MD-VNK802HEXE Service Manual page 7

DANGER
Before carrying out the installation, maintenance, repair or removal work, be sure to set the circuit breaker
for Air to Air Heat Exchanger with DX Coil Unit to the OFF position. Otherwise, electric shocks may result.
Before opening the electrical control cover, inspection cover and maintenance cover of the Air to Air Heat
Exchanger with DX Coil Unit, set the circuit breaker to the OFF position.
Failure to set the circuit breaker to the OFF position may result in electric shocks through contact with the
interior parts.
Only a qualified installer (*1) or qualified service person (*1) is allowed to remove the electrical control cover
or inspection cover of the Air to Air Heat Exchanger with DX Coil Unit and do the work required.
Before starting to repair the outdoor unit fan or fan guard, be absolutely sure to set the circuit
breaker to the OFF position, and place a "Work in progress" sign on the circuit breaker.
When cleaning the filter, Heat Exchange element or humidifier of the Air to Air Heat Exchanger with DX Coil
Turn off breaker Unit, set the circuit breaker to OFF without fail, and place a "Work in progress" sign near the circuit breaker
before proceeding with the work.
When you have noticed that some kind of trouble (such as when an error display has appeared, there is a
smell of burning, abnormal sounds are heard, the Air to Air Heat Exchanger with DX Coil Unit fails to cool or
heat or water is leaking) has occurred in the Air to Air Heat Exchanger with DX Coil Unit, do not touch the Air
to Air Heat Exchanger with DX Coil Unit yourself but set the circuit breaker to the OFF position, and contact
a qualified service person. Take steps to ensure that the power will not be turned on (by marking "out of
service" near the circuit breaker, for instance) until qualified service person arrives. Continuing to use the Air
to Air Heat Exchanger with DX Coil Unit in the trouble status may cause mechanical problems to escalate or
result in electric shocks or other failure.
When you access inside of the electrical control cover to repair electric parts, wait for about five minutes after
turning off the breaker. Do not start repairing immediately.Otherwise you may get electric shock by touching
Electric shock
terminals of high-voltage capacitors. Natural discharge of the capacitor takes about five minutes.
hazard
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.
Before operating the Air to Air Heat Exchanger with DX Coil Unit after having completed the work, check that
the electrical control cover, inspection cover and maintenance cover are closed, and set the circuit breaker
Prohibition
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 control cover and inspection cover 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.
Stay on
You may receive an electric shock if you fail to heed this warning. Only qualified service person (*1) is allowed
protection
to do this kind of work.
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