-65-
8.10
Switch circuit
TA shift, TC shift and unit No. are changed over by the
switch.
TA shift and TC shift are set in factory with unit No. at “1”.
In servicing, the setting should be made to the same
TA/TC shift as the PC board attached originally.
In case of operating one single unit, unit No. “1” will do.
With the operation of many units (multi units control) the
unit No. should be adjusted in such a way as 1, 2, 3 ........
8.9
Relay circuit
The relay circuit consists of the diagram above.
The relay performs the following functions:
RY01 : Main switching relay
RY02 : Changing over H/M of fan
RY03 : L tap of fan
RY04 : UL tap of fan
RY11 : Turning louver on and off
RY14 : Turning drain pump on and off
(
-
)
Fan Control Output
Heater
Louver Output
Drain pump
To CPU
To CPU
Model Change
TA
Shift
TC
Shift
Unit Number
R Y 0 3
A J E 6 4 1 2
R Y 0 1
A J E 6 4 1 2
R Y 1 3
G 4 U - 1
R Y 1 1
G 4 U - 1
R Y 0 7
G 4 U - 1
R Y 1 4
G 4 U - 1
D 1 5
1 5 5 1 7 6
R Y 0 2
A J E 6 4 1 2
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