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INSTALLER SETTING
ENGLISH
Connectivity - CN_EXT
Instead of external Dry contact, CN-EXT can be used to lock the heat pump by external signals.
Setting Contact input Operation * Remark
Not use - - CN_EXT is not used
Simple
operation
Open Operation “Off”
In case of simple operation, operation on/off is
possible as per either the remote controller or
external input signal.
Close Operation “On”
Simple Dry
contact
Open
Operation “Off”
with dry contact
lock
In this case, “Operation on” is possible only with
the Central controller.
Close Lock released
Release dry contact lock setting and “operation
on” is possible depend on dry contact auto
setting
Follows setting
‘Dry contact mode’:
Auto = Contact closed → Operation on
Manual = Contact closed → Keep on “operation
off” state, but “operation on” is
possible by remote controller manually
Single
Emergency
stop
Open
Emergency stop
with forced lock
In this case, “Operation on” is impossible with
any other controller.
Close
Forced lock
released
Release forced lock and keep on “operation off”
state, but “operation on” is possible by remote
controller manually
Priority: Emergency stop lock > Central control
lock > Dry contact lock
* This operation on / off means remote controller of / off for heating & cooling.
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