15
6. WIRING
DIAGRAMS
WARNING
• Risk of electric shocks. Before performing any maintenance or servicing, always disconnect the unit from its power source.
• This product is equipped with an overload protection (fuse). A blown fuse indicates an overload or a short-circuit situation.
If the fuse blows, unplug the product and check the polarity and voltage output from the outlet. Replace the fuse as per the
servicing instructions (refer to wiring diagram for proper fuse rating) and verify the product. If the replaced fuse blows, it may
be a short-circuit and the product must be discarded or returned to an authorized service center for examination and/or repair.
!
Field wiring
remote control
(see notes 3 & 4)
120 V,
60 Hz
W1
J5
J7
J6
J4
ELECTRONIC
ASSEMBLY
1 2 3
1
2
1
2
1 2 3
1
2
3
4
12
12345
1
2
3
4
5
J8
J9
J11
J10
1
2
J12
J13
J14
10 9 8 7 6 5 4 3 2 1
BK
24 V
class
2
9.5 V
class 2
120V, 60Hz
Neutral
120 V,
60 Hz
Line
CPU
K2
K4
K5
J5-2
J10-1
J10-2
See note 1
120 V
106 V
81 V
neutral
Door interloc
k switch
(magnetically
a
ct
u
a
te
d
Exhaust fan
motor
1
2
3
4
51
2
12
J3
J2
J1
t°
Damper motor
BK
Override
switch
Furnace blower interlock
J14-1 : NO
J14-2 : COM
J14-3 : nc
(optional; see notes 3, 5)
DAMPER
ELEC
T
R
O
N
IC ASSEMBLY
Defrost
temperature
sensor
WIRING DIAGRAM
LOGIC DIAGRAM
Exhaust fan motor
Supply fan motor
J5-1
J5-3
J7-2
J7-1
J4-1
J4-3
J6-2
J6-1
K1
K3
K2
24 V
c
la
s
s 2
9.5 V
class 2
120 V
neutral
J9-1
J9-2
J9-3
J4-2
J9-4
Exhaust fan motor
capacitor
Supply fan motor
capacitor
J8-1
J8-2
J8-4
J8-5
K4
J12-2
J12-1
A1
Damper motor
J3-2
J3-1
J2-2
J2-1
F1
J12-5
J12-4
J12-3
J2-3
J2-4
J2-5
Door interlock switch
J11-2
J11-1
K1
K3
K5
J14-3
J14-1
J14-2
Furnace
blower
interlock
(optional; see
notes 3, 5)
J14-4
J14-5
J14-6
J14-7
J14-8
J14-9
J14-10
Override
switch
(optional; see
notes 3, 4)
Field wiring
remote
control
(
s
e
e
notes 3, 4)
ICP
BK
Y
R
G
W
W
BK
W
BL
G
BK
BL
BN
BN
R
R
R
R
BK
BL
Exhaust fan
motor
capacitor
Supply fan
motor
capacitor
Supply fan
motor
G
G
O
O
Y
Y
BK
W
A2
A2
M3
T1
S1
R1
A1
F1
M1
C1
C2
M2
(optional; see
notes 3 & 4)
VE0324A
COLOR CODE
BK
BLACK
B
L
BLUE
BN
BROWN
G
G
REEN
RR
E
D
W
W
HITE
Y
YELLOW
nc
no connection
Critical characteristic.
reed switch)
JU1
1
2
3
MED HI
3
2
1
HI MED
JU
1
NOTES
1.
Use specified UL listed/CSA Certified line fuse
(3A, 3AG Type).
2. If any of the original wire, as supplied, must
be replaced, use the same equivalent wire.
3. Field wiring must comply with applicable
codes, ordinances and regulations.
4. Remote controls (class 2 circuit) available,
see instruction manual.
5. Furnace fan circuit must be class 2 circuit only.
Ref
1
Ref
1
FAN MOTORS SPEED SELECTION
SETTING
Ref 1 FAN SPEEDS (Voltage)
Factory shipped
Low - High (106)
Med-High select
Med (64) - High (106)
Low-Med select
Low - Med (81)
BL
BL
BK
R
BL
BL
GR
R
PB
L
BK
R
71 V
64 V
57 V
R
BL
BL
R
BK
P
P
BN
BN
GR
GR
nc nc nc
GR
GREY
O
O
RANGE
P
PURPLE
O
O
Y
Y
106 V
81 V
71 V
64 V
57 V
BK
W
BL
R
P
BN
GR
BK
W
BL
R
P
BN
GR
120 V
106 V
81 V
71 V
64 V
57 V
R
nc
BK
Low speed
capacitor
C1
BK
BL
MED
R
LO
BK
Low speed
capacitor
BK
Line voltage factory wiring
Class 2 low voltage factory wiring
Class 2 low voltage field wiring
Setting for test purpose only
1
2
3
MED HI
BL
BL
BK
R
Ref 1
JU1
Low - High (120)
ER
V1
1
0T AND
ER
V1
1
0
S
