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1-2.
INDOOR UNIT
External input
Control input
Forced thermostat off
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-
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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.
●
Indoor unit can be Forced thermostat off by using indoor unit PCB CNA03 or CNA04.
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A twisted pair cable (22AWG) should be used. Maximum length of cable is 150m.
●
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.)
Apply voltage terminal ([CNA01], [CNA03])
z
„
When a power supply must be provided at the input device you want to connect, use the Apply
voltage terminal ([CNA01], [CNA03])
Load
resistance
*a
Load
resistance
*a
Load
resistance
*a
*9: Make the power supply DC12 to 24V. Select a power supply capacity with an ample surplus for the
connected load.
Do not impress a voltage exceeding 24V across pins 1-2, and 1-3.
*a: The allowable current is DC 5mA to 10mA. (Recommended: DC5mA)
Provide a load resistance such that the current becomes DC10mA or less.
Select very low current use contacts (usable at DC12V, DC1mA or less).
*b: The polarity is [+] for pin 1 and [-] for pin 2 and 3. Connect correctly.
External output
-
-
Operation status
Error status
Indoor unit status
Auxiliary heater output
DC power
supply 12 - 24V
-
connected unit
- (08 - 08) -
Input select
Connector
Apply voltage
Dry contact
Apply voltage
Dry contact
-
*9
P.C.B
+
+
1
-
2
-
3
*b
1
2
External connect kit
(Optional parts)
CNA01
UTY-XWZXZB
CNA02
UTY-XWZXZD
CNA03
UTY-XWZXZ7
CNA04
UTY-XWZXZE
CNB01
UTY-XWZXZC
CNA01
CNA03
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