4. CONTROLS
(CONT’D)
4.2.3 E
LECTRICAL
C
ONNECTION TO
O
PTIONAL
A
UXILIARY
W
ALL
C
ONTROLS
NOTE:
If an optional auxiliary wall control is
activated and then, the Humidity
Control is being activated, the
Humidity Control will override the
auxiliary wall control commands.
NO C NC I OC OL Y R G B
20-MINUTED LIGHTED PU
S
H BUTTON
(5 MAXIMUM)
60-MINUTE
CRANK TIMER
HUMIDITY CONTROL
VE0105A
COM
FORT Z O
N E
O
FF
%
REL
ATIVE HUM IDIT
Y
70%
60%
50%
40%
30%
25%
20%
HUMIDITY
CONTROL
DURING FALL, WINTER
AND
S
PRING,
S
ET THE
DIAL ACCORDING TO
THE DE
S
IRED MAXIMUM
INDOOR HUMIDITY LEVEL.
DURING
S
UMMER
S
ET
THE DIAL TO THE
OFF PO
S
ITION.
Once the wall control(s) connections have been made, insert the terminal connector on the electrical
compartment front face.
NOTE: For information about the operation of the wall controls, refer to the user guide.
VD019
3
T
ERMINAL
CONNECTOR
4.2 E
LECTRICAL
C
ONNECTION TO
O
PTIONAL
W
ALL
C
ONTROLS
(
CONT
’
D
)
- 12 -
5. ELECTRICAL CONNECTION TO THE FURNACE
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
WARNING
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.
0
!
W
R
G
Y
W
R
G
C
Y
UNIT TERMINAL
CONNECT
OR
THERMO
S
TAT
TERMINAL
S
FOUR
WIRE
S
TWO WIRE
S
he
a
ting only
FURNACE
24-VOLT
TERMINAL BLOCK
TWO WIRE
S
COOLING
S
Y
S
TEM
N
O
C
N
C
I O
C
OL
Y
R G B
W R G
Y
W
R
Y
R
G
Y
C
THERMO
S
TAT
TERMINAL
4 WIRE
S
2 WIRE
S
he
a
ting only
wiring
n
u
t
s
FURNACE
24-VOLT
TERMINAL BLOCK
2 WIRE
S
COOLING
S
Y
S
TEM
NO
NC
C
UNIT TERMINAL
CONNECT
OR
N
O
C
N
C
I OC
O
L
Y
R G B
VE010
8
A
