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17
For the Installer
• 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 from the outlet. Discontinue using the unit and contact technical
support.
WARNING
!
Lin e vo l tag e f acto ry wiring
Class 2 low vo lt ag e facto ry w i r ing
Class 2 low vo lt ag e fie ld wiri n g
BK
BL
BN
BK
W
G
A1
J4
J6
ELECTRONIC ASSEMBL Y
1
2
3
1
2
J10
J14
10
9
8
7
6
5
4
3
2
1
1 2 3 4 5
J12
12
3
4
5
J8
24V
class 2
9.5V
class 2
BL
W
O
O
Y
Y
12345 12
1 2
J3
J2
J1
M2
Damper motor
A2
DAMPER E LE CTRONIC
AS SEM BL Y
Fur na ce blower i n ter l ock
(op ti onal )
Thermistor
F1
3A
3AG Type
T1
12 0 Vo lt AC
60 Hz
Fi el d wir i ng
remote control
Override switch
(op tion al)
BK
G
R
Y
B
G
R
Y
OL
OC
I
JU1
123
H
M
R1
J9-3
M
J2-1
J3-1
J3-2J2-2
J12-2
K4
K2
T1
+
-
~
~
Line
Neutral
120 Volt AC
A2
Damper Motor
M2
CPU
K2 K3 K4
F1
J12-1
J10-2
J10-1
J9-1
24VA C
9.5VAC
J8-4
J8-5
J8-2
J8-1
J9-4
BN
GY
R
nc
BN
GY
R
R
76V
10 3V
64V
55V
ne ut ral
nc
nc
76VA C
64VA C
55VA C
J9-2
JU1
3
21
MH
12 0V
BK
BL
10 3VA C
nc
K1
M
J4-1
J6-1
J6-2
J4-2
K3
Blower M otor
M1
C1 Motor Capacitor
J4-3
Dampe r sy st em
J13
ICP
12
K5
J11-2
S1
J11-1
1234
J9
C1
Motor capacitor
M1
Fan motor
S1
BL
Color Code
BK BL ACK O ORANGE
BL BLUE P PU R PL E
BN BROW N R RED
G GREEN W WHITE
GY GREY Y YE LL OW
NC No Connection
64 CFM optional low
speed selection can be
achieved by connecting
GREY to RED tap.
9.3 K10 HRV AND 50H UNITS
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