User Manual
5
Room temp.
≤
Setting temp.-2
℃
, “Heat on”& “AUX” display and 2
nd
stage heating system is
on;
(not available for 1 stage heat system)
Room temp.
≥
Setting temp., heating system stops and “Heat on” disappears from screen.
Note: 2
nd
heat stops and “AUX” disappears when temp. difference is less than 1
℃
.
Cool
Room temp.
≥
Setting temp.+1
,
℃
“Cool on” displays and 1
st
stage cooling system is on;
Room temp.
≥
Setting temp.+2
℃
, “Cool on” stays and 2
nd
stage cooling system is on ;
(not available for 1 stage cool system)
Room temp.
≤
Setting temp., cooling system stops and “Cool on” disappears from screen.
Note:
2
nd
cool stops when temp. difference is less than 1
℃
.
Heat pump system
Heat
(Changeover valve keep closed)
Room temp.
≤
Setting temp.-1
℃
, “Heat on” displays and 1
st
stage heating system is on;
Room temp.
≤
Setting temp.-2
℃
, “Heat on” stays and 2
nd
stage heating system is on;
Room temp.
≤
Setting temp.-3
℃
, “Heat on”& “AUX” display and Aux heating system is on;
Room temp.
≥
Setting temp., heating system stops and “Heat on” disappears from screen.
Note: Aux heat stops and “AUX” disappears when temp. difference is less than 2
℃
. 2
nd
heat
stops when temp. difference is less than 1
℃
.
Cool
(Changeover valve keep open)
Room temp.
≥
Setting temp.+1
,
℃
“Cool on” displays and 1
st
stage cooling system is on;
Room temp.
≥
Setting temp.+2
℃
, “Cool on” stays and 2
nd
stage cooling system is on;
Room temp.
≤
Setting temp., cooling system stops and “Cool on” disappears from screen.
Note:
2
nd
cool stops when temp. difference is less than 1
℃
.
Compressor protection
After an operation of heating/cooling system, there is a 1 min compressor off time to protect
compressor. “Wait” will display on the screen if next operation is activated within the 1 min
period.
Fan mode setting
Press
to
switch among “Fan on & Fan Auto”.
Fan on
：
Fan is always on.
Fan Auto
：
Fan
runs automatically only when heating/cooling system is on
.
(If system is in OFF state, the fan will always off)
Note:
In this device application,
the
“
OFF bit”
is ignored
in “
Thermostat Fan CC” and
“Thermostat Fan Mode Set CC”
, and the value always be “0” in
Thermostat Mode Report CC.
Mode setting
Press
F
to
switch among “
Schedule
,
Hold
&
Hold Until
(Holiday)” modes.
