Technical data
15
NOTE: If an optional auxiliary wall control is
activated and then, the Dehumidistat
is being activated, the operation of
this one will override the operation of
auxiliary wall control commands.
4. CONTROLS (CONT’D)
4.2.3 ELECTRICAL C ONNECTION TO L ITE-TOUCH C ONSTRUCTO
(
ALL UNITS) OR SIMPLE-TOUCH CONSTRUCTO MAIN
WALL CONTROL (EXCLUSIVELY FOR SOLO UNITS)
NO C NC I OC OL Y R G B
B G
OC
MAIN WALL
CO
NTR
O
L
LITE-TOUCH CONSTRUCTO
and
SIMPLE-TOUCH CONSTRUCTO
REAR VIEW
G
B
Y
VE0100A
4.2.4 ELECTRICAL CONNECTION TO
C
ONSTRUCTO MAIN WALL CONTROL (ALL UNITS)
NO C NC I OC OL Y R G B
VE0102
--5°C
23°F
5
°
C
41
°
F
C
O
M
F
O
R
T
Z
O
N
E
-20°C
-4°F
OFF
MIN MAX
#
X
X
X
X
X
0
1
/
9
8
CONSTRUCTO
4.2 ELECTRICAL CONNECTION TO OPTIONAL WALL CONTROL (CONT’D)
4.2.5 E
LECTRICAL CONNECTION TO OPTIONAL AUXILIARY WALL CONTROLS
NO C NC I OC OL Y R G B
PUSH-BUTTON TIMERS
60-MINUTE
CRANK TIMER
DEHUMIDISTAT
VE0295A
5. ELECTRIC CONNECTION TO THE FURNACE
W R G
Y
W
R
G
C
Y
UNIT TERMINAL CONNECTOR
THERMOSTAT
TERMINALS
FOUR
WIRES
TWO WIRES
heating only
FURNACE
24-VOLT
TERMINAL BLOCK
TWO WIRES
COOLING SYSTEM
NO C NC I OC OL Y R G B
W R G Y
W
R
Y
R
G
Y
C
THERMOSTAT
TERMINAL
4 WIRES
2 WIRES
heating only
wiring
nuts
FURNACE
24-VOLT
TERMINAL BLOCK
2 WIRES
COOLING SYSTEM
NO
NC
C
UNIT TERMINAL CONNECTOR
NO C NC I OC OL Y R G B
VE0108A
Never connect a 120-volt AC circuit to the terminals of the furnace interlock (standard wiring). Only use the low
voltage class 2 circuit of the furnace blower control.
FOR A FURNACE CONNECTED TO A COOLING SYSTEM:
On some older thermostats, energizing the “R” and “G” terminals at the furnace has the effect of energizing “Y” at the thermostat and
thereby turning on the cooling system. If you identify this type of thermostat, you must use the
ALTERNATE FURNACE INTERLOCK WIRING.
STANDARD FURNACE INTERLOCK WIRING ALTERNATE FURNACE INTERLOCK WIRING
COMPATIBLE OPTIONAL AUXILIARY WALL CONTROLS ACCORDING TO UNIT:
CONSTRUCTO SOLO
DEHUMIDISTAT DEHUMIDISTAT
60-MINUTE CRANK TIMER 60-MINUTE CRANK TIMER
20-MINUTE LIGHTED PUSH-BUTTON SWITCH 20/40/60 MINUTE LIGHTED PUSH-BUTTON TIMER
WARNING
!