VH 1828G
WIRING DIAGRAM 115VAC, 50/60Hz, 1 Phase
U4182Q
COOLING FAN
IN GAS BOX
4
5
2
1
3
UPPER
TEMPERATURE
ADJUSTMENT
POTENTIOMETER
11
10
9
8
7
6
LOWER
TEMPERATURE
ADJUSTMENT
POTENTIOMETER
BLACK
BLA
CK
19
13
19
11
18
14
16
12
-
WH
ITE
++
-
41
39
46
44
+
BLACK ( 2 )
RED
GEARMOTOR
POWER SUPPLY
-
+
OUTPUT
INPUT
REAR EXHAUST FANS
42
20
WHITE
23
38
WHITE
15
FAN
RELAY
COOL
-
DOWN
T/STATS.
CLOSE
ON TEMP
RISE.
N.O.
C
COOLING FAN
IN CONTROL
BOX DOOR
1
2
3
GR
EE
N
GREEN
GREEN
G2
GREEN
WHITE
25
G2
G4
17
G3
25
34
10
GEARMOTOR
REVERSING
SWITCH
GEARMOTOR
AND SPEED
POT
GREEN
YELLOW
ORANGE
G1
9
5
8
6
4
FUSE
1
10 AMPS
BL
AC
K
GR
EE
N
WH
ITE
BL
AC
K
ND
G
BLACK
BLACK
HI-TEMP WIRE
BLACK
MAIN SWITCH
MAIN SWITCH
L1
N
G
BLACK
19
WHITE
GREEN
GREEN
UPPER BLOWER
MOTOR
LOWER BLOWER
MOTOR
1~
CCW
CAP
L1
FL
AM
E
SE
NS
E
GR
OU
ND
TH
ER
MO
ST
AT
GA
S
VA
LV
E
IGN
ITE
R
TRANSFORMER
120 VAC
24 VAC
10
AM
P
GAS
INJECT
G
4
5
2
1
3
11
10
9
8
7
6
L1
FL
AM
E
SE
NS
E
GR
OU
ND
TH
ER
MO
ST
AT
GA
S
VA
LV
E
IGN
ITE
R
TRANSFORMER
120 VAC
24 VAC
10
AM
P
GAS
INJECT
G
UPPER
TEMPERATURE
CONTROL
LOWER
TEMPERATURE
CONTROL
VACUUM
SWITCHES:
CLOSE ON
RISING
VACUUM
ORANGE
BLUE
PURPLE
RTDSENSOR
ORANGE
BLUE
PURPLE
RTDSENSOR
GAS
VALVE
BURNER
FLAME SENSOR
IGNITER
UPPER
IGNITION
MODULE
GAS
VALVE
BURNER
FLAME SENSOR
IGNITER
LOWER
IGNITION
MODULE
WHITE
BLACK
YEL
BLK
GRN
RED
PU
RP
LE
BLK
GRN
RED
PU
RP
LE
ORANGE
ORANGE
BLUE
BLACK
BLACK
WHITE
WHITE
BLUE
BLACK
GREEN
BL
K
WHITE
WHITE
WHITE
1~
CCW
CAP
WHITE
BLACK
BL
AC
K
HI-
TE
MP
WIR
E
BRN
BLU
BL
AC
K
BL
AC
K
WIRENUT (2)
WH
WH
BLK
BLK
BLK
15
WHITE
40
24
26
28
30
32
27
36
J
BL
K
29
G
50
51
55
56
BLU
G
58
59
63
65
BLU
B
Y
B
Y
54
Y
Y
52
YEL
53
57
YEL
60
YEL
61
62
31
BLK
BLK
OR
33
OR
BLACK
CONTACTOR
OVERLOAD
RELAY
48
21
22
LR
2K
031
4
LC
1
K0
6
WHITE
JUMPER
WHI
TE
2 4
2 4
1 3
1 3
GREY
GREY
GREY
GREY
GREY
GREY
GREY
GREY
BL
AC
K
WHITE
48
BLACK
55
64
GRN
GRN
WIRENUT (2)
24
