3
04.15 207403 Rev104
INSTALLATION INSTRUCTIONS
Separate the terminal front panel from the back panel by pressing the blockage tab located at the
top of the thermostat case.
Remove the back panel.
In order to fasten the back panel to the wall, align it on the wall.
Install 3 fixing screws through the mounting holes.
Realize electrical connections as shown in electrical wiring diagram.
(see WIRING CONNECTIONS section).
In order to place the front cover, fit together the two bottom tabs on the bottom slots, and then
press to align the upper blockage tab in the upper slot.
Push until it would be fixed on the wall.
WIRING CONNECTIONS
Y1
COMPRESSOR 1
G
FAN
Y2
COMPRESSOR 2
T
EXTERNAL SENSOR
To
W2
ELECTRIC RESISTANCE – STEP 2
IN
WINDOW CONTACT
INo
W1
ELECTRIC RESISTANCE – STEP 1
W3
ELECTRIC RESISTANCE – STEP 3
B/O
4 WAY VALVE CONNECTION
(B : heat pump power supply / O : cooling power supply)
C
COMMON (power supply)
R
LINE (power supply)
