Toshiba HFC R-410A manual 8F 7F 2F 1F, •Wiring diagnosis system

8F

7F

2F

1F

•Non-polarized control wiring between outdoor and indoor units

Outdoor unit

Indoor unit

•Wiring diagnosis system

Use the switches on the micro processor PCB of the outdoor unit.

•Detects wiring to the indoor unit a4 which should not be in system A.

•b4 is missing in system B.

Piping
Outdoor unit
A
system
Wiring	Indoor unit
B
system
Outdoor unit

				Allowable pipe length:
			Outdoor unit	175 m equivalent length
			1st branching
	and outdoor unit: 50 m		section
difference between		difference between	units: 30 m
Height	indoor	Height	indoor

From 1st branching to the farthest indoor unit: 65 m

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