Service Manual
69
HIGH VOLTAGE!
Disconnect ALL power before servicing or installing this unit. Multiple
power sources may be present. Failure to do so may cause property
damage, personal injury or death.
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
*MVM97_A*, *CVM97_A*
Wiring Diagram
GR GREEN
R
D
R
E
D
G
Y
G
R
A
Y
O
R
O
R
A
N
G
E
C
O
L
O
R
C
O
D
E
S
:
P
K
P
I
N
K
B
R
B
R
O
W
N
W
H
W
H
I
T
E
B
L
B
L
U
E
Y
L
Y
E
L
L
O
W
P
U
P
U
R
P
L
E
B
K
B
L
A
C
K
V
A
C
1
1
5
S
E
N
S
O
R
F
L
A
M
E
INTEGR
A
TED CONTROL
MODULE
GY
BL
RAMPING
G
Y
40 VA
T
R
A
N
S
F
O
R
M
E
R
BR
BK
O
R
(
10
)
GND
2
OR
A
U
X
HSI
9
8
1
2
1
11
7
2
5
4
3
6
10
D
E
H
U
M
W2
C
1
Y
1
2
R
W1
E
A
C
H
U
M
Y2
ID BLOWER
CONNECTOR
G
O
LED'S
DI
A
GNOSTI C
4
FL
A
ME
S
E
N
S
O
R
1
D
E
L
A
Y
3
N
E
U
T
R
A
L
1
2
D
E
H
U
M
LINE
A
D
J
U
S
T
F
U
S
E
BI
A
S
OR
YL
B
K
WH
WH
WH
WH
O
R
R
D
WH
BK
BR
O
R
RD
B
K
GY
BL
2
A
U
X
I
L
I
A
R
Y
P
K
W
A
R
N
I
N
G
:
D
I
S
C
O
N
N
E
C
T
M
I
C
R
O
TO
O
R
N
N
O
3
BR
L
1
P
R
E
S
S
U
R
E
(
2
)
S
E
N
S
O
R
F
L
A
M
E
G
R
V
A
C
1
(
O
N
S
O
M
E
M
O
D
E
L
S
)
P
U
V
A
LVE
G
A
S
RD
A
N
D
G
R
O
U
N
D
E
D
.
1
B
L
W
R
NEUTR
A
L
1
1
5
W
H
F
I
E
L
D
G
N
D
W
A
R
N
I
N
G
:
W
2
G
R
O
U
N
D
E
D
.
2
GR
BL
B
R
TR
A
N
SFORMER
WH
N
O
S
W
I
T
C
H
W
H
(
1
1
)
1
N
E
U
T
R
A
L
O
R
Y
2
ELECTRONIC
Y
1
W
H
A
I
R
L
P
U
N
O
T
E
S
:
(
3
)
P
K
I
G
N
3
B
K
G
N
D
(
4
)
5
W
H
NO
W
1
S
W
I
T
C
H
P
R
E
S
S
U
R
E
H
I
G
H
F
I
R
E
PU
D
I
S
C
O
N
N
E
C
T
2
F
S
C
N
E
U
T
R
A
L
4
B
K
L
I
N
E
C
D
O
O
R
O
P
E
N
)
C
O
M
P
A
R
T
M
E
N
T
B
L
O
W
E
R
N
E
U
T
R
A
L
JUNCTION B
OX
G
N
D
1
R
B
L
O
W
E
R
C
I
R
C
U
L
A
T
O
R
B
L
W
R
J
U
N
C
T
I
O
N
O
R
C
ONTROLS
1
N
HUMIDIFIER
INDOOR
H
I
G
H
F
I
R
E
D
I
S
C
O
N
N
E
C
T
M
O
D
U
L
A
T
I
N
G
(
6
)
O
V
E
R
C
U
R
R
E
N
T
HUM
C
O
N
N
E
C
T
O
R
Y
L
G
N
D
V
A
C
C
H
A
S
S
I
S
GROUND
2
3
4
SWITCH
DOO
R
NEUTR
A
L
(
8
)
I
G
N
I
T
E
R
S
U
R
F
A
C
E
H
O
T
G
N
D
DEHUM
Y
L
P
U
I
N
D
U
C
T
O
R
C
O
I
L
C
E
A
C
B
L
O
W
E
R
D
R
A
F
T
I
N
D
U
C
E
D
P
M
2
4
I
G
N
I
T
E
R
0
1
4
0
F
0
2
0
1
3
-
A
O
V
E
R
C
U
R
R
E
N
T
BK
CIRCUL
A
TOR
3
(
1
2
)
NO
H
A
R
N
E
S
S
P
M
T
E
R
M
I
N
A
L
OR
I
G
N
I
T
E
R
R
D
B
K
T
O
RD
LINE
P
R
O
T
E
C
T
I
O
N
D
E
V
I
C
E
G
N
D
B
K
B
L
G
Y
R
D
INDOOR
A
IR
CIRCUL
A
TOR
B
L
W
R
T
X
(
3
)
RX
(
2
)
+
V
D
C
(
1
)
GND
(
4
)
R
TO
M
I
C
R
O
TO
Ø
/
6
0
H
Z
1
1
5
V
A
C
/
1
P
O
W
E
R
S
U
P
P
L
Y
W
I
T
H
P
O
W
E
R
B
E
F
O
R
E
S
E
R
V
I
C
I
N
G
W
I
R
I
N
G
.
T
O
U
N
I
T
M
U
S
T
B
E
T
O
U
N
I
T
M
U
S
T
B
E
P
R
O
P
E
R
L
Y
P
O
L
A
R
I
Z
E
D
E
Q
U
I
P
M
E
N
T
G
N
D
F
I
E
L
D
S
P
L
I
C
E
S
W
I
T
C
H
(
T
E
M
P
)
S
W
I
T
C
H
P
R
E
S
S
U
R
E
P
R
O
T
.
D
E
V
I
C
E
L
O
W
V
O
L
T
A
G
E
F
I
E
L
D
L
O
W
V
O
L
T
A
G
E
(
2
4
V
)
H
I
V
O
L
T
A
G
E
(
1
1
5
V
)
H
I
V
O
L
T
A
G
E
F
I
E
L
D
I
N
T
E
R
N
A
L
T
O
I
N
T
E
G
R
A
T
E
D
C
O
N
T
R
O
L
P
L
U
G
C
O
N
N
E
C
T
I
O
N
1
.
S
E
T
H
E
A
T
A
N
T
I
C
I
P
A
T
O
R
O
N
R
O
O
M
T
H
E
R
M
O
S
T
A
T
A
T
0
.
7
A
M
P
S
.
2
.
M
A
N
U
F
A
C
T
U
R
E
R
'
S
S
P
E
C
I
F
I
E
D
R
E
P
L
A
C
E
M
E
N
T
P
A
R
T
S
M
U
S
T
B
E
U
S
E
D
W
H
E
N
S
E
R
V
I
C
I
N
G
.
3
.
I
F
A
N
Y
O
F
T
H
E
O
R
I
G
I
N
A
L
W
I
R
E
A
S
S
U
P
P
L
I
E
D
W
I
T
H
T
H
E
F
U
R
N
A
C
E
M
U
S
T
B
E
R
E
P
L
A
C
E
D
,
I
T
M
U
S
T
B
E
R
E
P
L
A
C
E
D
W
I
T
H
W
I
R
I
N
G
M
A
T
E
R
I
A
L
H
A
V
I
N
G
A
T
E
M
P
E
R
A
T
U
R
E
R
A
T
I
N
G
O
F
A
T
L
E
A
S
T
1
0
5
°
C
.
U
S
E
C
O
P
P
E
R
C
O
N
D
U
C
T
O
R
S
O
N
L
Y
.
4
.
U
N
I
T
M
U
S
T
B
E
P
E
R
M
A
N
E
N
T
L
Y
G
R
O
U
N
D
E
D
A
N
D
C
O
N
F
O
R
M
T
O
N
.
E
.
C
.
A
N
D
L
O
C
A
L
C
O
D
E
S
.
5
.
T
O
R
E
C
A
L
L
T
H
E
L
A
S
T
1
0
F
A
U
L
T
S
,
M
O
S
T
R
E
C
E
N
T
T
O
L
E
A
S
T
R
E
C
E
N
T
,
D
E
P
R
E
S
S
S
W
I
T
C
H
F
O
R
M
O
R
E
T
H
A
N
2
S
E
C
O
N
D
S
W
H
I
L
E
I
N
S
T
A
N
D
B
Y
(
N
O
T
H
E
R
M
O
S
T
A
T
I
N
P
U
T
S
)
E
C
M
M
T
R
2
4
V
3
A
D
O
O
R
S
W
I
T
C
H
(
O
P
E
N
W
H
E
N
2
4
V
T
H
E
R
M
O
S
T
A
T
C
O
N
N
E
C
T
I
O
N
S
N
.
E
.
C
.
C
L
A
S
S
2
W
I
R
E
INTEGRATED CONTROL MODULE
24V HUM.
2
4
V
T
H
E
R
M
O
S
T
A
T
C
O
N
N
E
C
T
I
O
N
S
N
.
E
.
C
.
C
L
A
S
S
2
W
I
R
E
P
U
L
L
D
O
W
N
P
U
L
L
U
P
COOL SETUP
HE
A
T SETUP
H
E
A
T
O
F
F
DIP SW ITCHES
F
A
N T
A
PS
HE
A
T T
A
PS
C
O
O
L
T
A
P
S
MODUL
A
TING INTERGR
A
TED
FURN
A
CE CONTROL MODULE
L
I
M
I
T
C
O
N
T
R
O
L
A
U
T
O
R
E
S
E
T
B
L
O
W
E
R
C
O
M
P
A
R
T
M
E
N
T
B
U
R
N
E
R
C
O
M
P
A
R
T
M
E
N
T
A
U
T
O
R
E
S
E
T
P
R
I
M
A
R
Y
L
I
M
I
T
C
O
N
T
R
O
L
M
A
N
U
A
L
R
E
S
E
T
R
O
L
L
O
U
T
L
I
M
I
T
C
O
N
T
R
O
L
S
(
S
I
N
G
L
E
C
O
N
T
R
O
L
O
N
4
0
k
B
T
U
)
2
C
I
R
C
U
I
T
G
A
S
V
A
L
V
E
(
H
O
N
E
Y
W
E
L
L
)
L
O
W
F
I
R
E
S
W
I
T
C
H
I
D
B
L
O
W
E
R
M
O
D
U
L
A
T
I
N
G
P
R
E
S
S
U
R
E
S
W
I
T
C
H
A
S
S
E
M
B
L
Y
T
O
1
1
5
V
A
C
/
1
Ø
/
6
0
H
Z
P
O
W
E
R
S
U
P
P
L
Y
W
I
T
H
O
V
E
R
C
U
R
R
E
N
T
P
R
O
T
E
C
T
I
O
N
D
E
V
I
C
E
D
I
S
C
O
N
N
E
C
T
P
O
W
E
R
B
E
F
O
R
E
S
E
R
V
I
C
I
N
G
W
I
R
I
N
G
T
O
U
N
I
T
M
U
S
T
B
E
P
R
O
P
E
R
L
Y
P
O
L
A
R
I
Z
E
D
A
N
D
A
I
R
C
L
E
A
N
E
R
INTEGRATED CONTROL MODULE
3Ø ID
H
O
T
S
U
R
F
A
C
E
4
0
V
A
FUSE 3
A
T
R
(
5
)
T
O
+
V
D
C
24 V
A
C
A
U
T
O
R
E
S
E
T
A
U
X
I
L
I
A
R
Y
L
I
M
I
T
A
U
T
O
R
E
S
E
T
P
R
I
M
A
R
Y
LIMIT CONTROL
LOW
FIRE
P
R
E
S
S
.
P
R
E
S
S
.
S
W
I
T
C
H
M
A
N
U
A
L
R
E
S
E
T
R
O
L
LOUT
LIMIT CONTROLS
T
R
(
9
)
O
P
T
I
O
N
A
L
OPTION
A
L
INDUCTOR COIL
(
O
N
S
O
M
E
M
O
D
E
L
S
)
C
G
Y
G
Y
N
O
F
R
O
N
T
C
O
V
E
R
P
R
E
S
S
U
R
E
S
W
I
T
C
H
C
(
7
)
N
O
F
R
O
N
T
C
O
V
E
R
PRESS.
SWITCH
G
N
D
GND
B
K
W
H
J
U
N
C
T
I
O
N
B
O
X
G
N
D
G
R
2
2
G
O
C
C