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6. Wiring Diagram and Block Diagram
6.1 Wiring Diagram
(1) Current fuse ....................Overcurrent flow caused by deterioration in electrical parts or other problems
turns the power source to OFF.
<Current setting: 2A>
(2) Motor protector................Current flow exceeding 1.7A with compressor surface temperature of approx.
(Overload relay)..............100°C shuts down compressor operation.
The compressor will also shut down when malfunctions or other problems
cause the current flow to exceed 4.7A.
(3) Control circuitry ...............The room temperature thermister senses temperature below about 0°C, and
shuts down the compressor.
(4) Thermal fuse ...................When blower motor temperature exceeds 134°C due to blower locking or other
malfunctions, blower operation shuts down.
Safety Devices
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