1-2. INDOOR UNIT
External input External output Input select Connector External connect kit
(Optional parts)
Control input -
Apply voltage CNA01 UTY-XWZXZB
Dry contact CNA02 UTY-XWZXZD
Forced thermostat off -
Apply voltage CNA03 UTY-XWZXZ7
Dry contact CNA04 UTY-XWZXZE
- Operation status
- CNB01 UTY-XWZXZC
- Error status
- Indoor unit status
- Auxiliary heater output
1-2-1. EXTERNAL INPUT
● Indoor unit can be Operation/Stop or Emergency stop or Forced stop by using indoor unit PCB CNA01 or
CNA02.
● "Start/Stop" mode or "Emergency stop" mode or "Forced stop" mode can be selected with function setting of
indoor unit.
● A twisted pair cable (22AWG) should be used. Maximum length of cable is 492 ft. (150 m).
● Use an external input and output cable with appropriate external dimension, depending on the number of cables
to be installed.
● The wire connection should be separate from the power cable line.
INPUT SELECT
Use either one of these types of terminal according to the application. (Both types of terminals
cannot be used simultaneously.)
z
Apply voltage terminal ([CNA01], [CNA03])
When a power supply must be provided at the input device you want to connect, use the Apply
voltage terminal ([CNA01], [CNA03])
1
2
1
2
3
+
+
-
-
-
Input device 1
Input device 2Input device 3
Load
resistance
Load
resistance
Load
resistance
*9
DC power
supply 12 - 24 V
connected unit
P.C. B
CNA01
CNA03
*a
*a
*a
*b
*9: Make the power supply DC 12 to 24 V. Select a power supply capacity with an ample surplus for the
connected load.
Do not connect a voltage exceeding 24 V across pins 1-2, and 1-3.
*a: The allowable current is DC 5 mA to 10 mA. (Recommended: DC 5 mA)
Provide a load resistance such that the current becomes DC 10 mA or less.
Select very low current use contacts (usable at DC 12 V, DC 1 mA or less).
*b: The polarity is [+] for pin 1 and [-] for pin 2 and 3. Connect correctly.
- (08 - 08) -
EXTERNAL INPUT
& OUTPUT
EXTERNAL INPUT
& OUTPUT
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