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(9) Gas Leak Inspection
Stopping only the indoor unit is extremely dangerous because the engine
may suddenly start if the customer operates the remote controller on the
indoor unit side. Before carrying out work on the inside of the outdoor unit,
make sure you turn off the power supply circuit breaker of the outdoor unit.
(However, if a system controller or other centralized control device is being
used, an abnormal communications error may be generated.) Alternatively,
perform the STOP operation for the outdoor unit.
j Check for leaks in the fuel line connections
1) Open the main valve for the gas line.
2) U sing a gas leak detector (Figure 1) or soapy water, make sure there are no leaks in the fuel line connections of
the outdoor unit.
(10) Control program version check
Check the version of the control program. Update the program if required.
Safety Precautions
Figure 1
II - 19
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