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CHAPTER 5 SETTINGS AND THE PROCEDURE BEFORE OPERATION
5
5.4 Wiring
5.4.2 External wiring
(b) In the heating-cooling control
*1 Use the shielded cable.
To use the heater disconnection detection function, the CT input channel assignment must be set.
Since the CT1 is used in the loop of CH1 in the above wiring example, set CH1(1) to CT1 CT input channel assignment
setting (Un\G264).
Heating
Cooling
L1H
L1C
Filter
Filter
Controlled
object
A
B
b
*1
*1
*1
*1
*1
*1
Q64TCRTBWN
Current
sensor
(CT)
CT input circuit
CT1
CT1
CT8
CT8
CT2
CT2
Connector
Connector
Internal
circuit
Internal
circuit
Internal
circuit
L2H
COM-
*1
24VDC
Internal
circuit
L2C
Internal
circuit
CH1 A
CH1 B
CH2 A
CH2 B
CH2 b
CH1 b