• Operates when the external contact switch is turned off, and returns to the original opera-
tion state when the switch is turned on.
Setting Wiring Operation example
Mode 1 or 0
P1: Arbitrary operation state
P2: Setback
Other settings are arbitrary.
Indoor unit
External
SW controller
External
contact SW 1
Mode 1, P1: On, Cool, 26 °C
P2 : When setback
SW1
Operation state
On
Off
Off
On
P1 P2
Cool
26 °C
Cool
23 °C
Cool
23 °C
• Thermal sensor switch is connected and cooling and heating operations are switched.
Setting Wiring Operation example
Mode 1
Off output: Enabled
P1: On, Cool or Heat
P2: On, Cool or Heat
Operation conditions: Unit
operating only
Other settings are arbitrary.
Indoor
unit
Thermal sensor SW
External switch controller is
connected to all indoor units
in the same refrigerant
system and cooling and
heating operations are
switched by one thermal
sensor.
P1: On, Cool, 26 °C
P2: On, Heat, 21 °C
SW1
Operation state
On
Off
Heat
21 °C
Off
On
P2 P1
Cool
26 °C
Cool
23 °C
• Preventing chatter noise within 1 minute after external contact switch is turned on
Setting Wiring Operation example
Mode 1
Delay-time setting: Delay
P1: Arbitrary operation state
P2: Arbitrary operation state
Other settings are arbitrary.
Indoor unit
External
SW controller
External
contact SW 1
P1: Off P2: On, Cool, 26 °C
SW1
Operation state
On
Off
P2
On
P1
1 min 1 min
Cool
26 °C
3-14. External switch controller (UTY-TEKX)
- (05-205) - 3. Adaptor/Convertor units
CONTROL
SYSTEM
CONTROL
SYSTEM
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