Panasonic R410A Specifications, Precautions, Indoor unit control PCB, Outdoor unit control PCB

1. Specifications

7-22. Precautions

Request that the customer be present at the time the test run is performed. Explain the Operating Instructions to the customer, and then have the customer actually operate the system.

Be sure to pass the manual and warranty certificate to the customer.

Verify that the AC 208 / 230 V wiring is not connected to the terminal plate which is used to connect the inter-unit control wiring.

*If AC 208 / 230 V is accidentally applied to this terminal plate, the fuse (0.5A for both indoor and outdoor units) on the inter-unit control PCB will be tripped in order to protect the PCB. Correct the wiring connections, then disconnect the 2P connectors (indoor unit: blue, OC, CN40; outdoor unit: blue, OC) which are connected

to the PCB and connect the other 2P connectors (indoor unit: brown, EMG, CN44; outdoor unit: brown, EMG). (See the fi gure below.)

If operation is still not possible with the brown connectors connected, cut the varistor (black) (for both the indoor and outdoor units).

(Be sure to turn OFF the power before performing this work.)

	Indoor unit control PCB		Outdoor unit control PCB
<For K1 Type>	Fuse			1
	0.5A		Fuse
	2P connector (blue)
	2P connector (brown)		0.5A
	SW103	TEST
		OFF
	Varistor (black)	ON	Serial 1 connector (blue)
	VA002	Varistor (black)	Serial 2 connector (brown)
	CHK (2P plug)

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