Operating instructions

19. ELECTRICAL SCHEMATICS & WIRING DIAGRAMS
26
MAIN SWITCH MAIN SWITCH
BLACK
BLACK
BLACK
BLACK
YELLOW
UPPER BLOWER
MOTOR
LOWER BLOWER
MOTOR
G
ND
BROWN
BLUE
GREEN
GRN
GRN
BROWN
WHITE
BLACK
BLACK
UPPER BLOWER
MOTOR SPEED
CONTROL AND
POTENTIOMETER
YELLOW
YELLOW
BLACK
3~
CCW
YELLOW
BLACK
BLACK
LOWER BLOWER
MOTOR SPEED
CONTROL AND
POTENTIOMET ER
YELLOW
YELLOW
BLACK
3~
CCW
BLOWE R MOTOR
SPEED CO NTROL S
1~ IN; 1 or 3~OUT
T1
T2
T3
T1T1
T2
T3
G
L1 L2 G
FUSE
1
5AMPS
FUSE 2
5AMPS
468
5
79
G1
A1
B2
A3
A2
B1
B3
BRN S 3
BLK S2
RED
S1
BRN S3
BLK S2
RED
S1
6
7
8
9
10
11
SSR 1
ORANGE
YELLOW
GREEN
GEARMOTOR
AND S PEED
POT
GEARMOTOR
REVERSING
SWITCH
A
10
20
19
21
22
26
37
25
G2
17
G4
G2
36
32
30
35
33
25
27
28
34
BLACK
BROWN
BLUE
GREEN / YELLOW STRIPE
BROWN
GRY
BROWN
J
J
J
J
J
BROWN
BLUE
BLUE
BRN
GRAY
GRN / YLW
G3
G2
UPPER
TEMPERATURE
CONTROL
LOWER
TEMPERATURE
CONTROL
10 GA. GREEN / YELLOW STRIPE
18 GA. GREEN / YELLOW STRIPE
18 GA. GREEN / YELLOW STRIPE
15 K OHM
RESI ST OR
15 K OHM
RESI ST OR
123
COOLING FAN
IN CONTROL
BOX DOOR
C
N.O.
FAN
RELAY
BROWN
15
BLUE
38
24
23
WHITE
BLACK
40
42
SSR 1
BOTTOM ELEMENTS
LEFT
RIGHT
1500 WATTS EACH
REAR EXHAUS T FANS
SSR 3
TOP ELEMENTS
LEFT
RIGHT
SSR 2
A
E
B
F
G
C
D
I
J
K
H
A
10 GA. BLACK
BLACK
10 GA. BROWN
WHITE
31
BLUE
INPUT OUTPUT
+
-
GEARMOTOR
POWER SUPPLY
RED
BLACK ( 2 )
+
44
46
39
41
-
+
+
WHITE
-
12
16
14
GRAY
A
29
18
11
19
WHITE
13
19
BLACK
POWER BLOCK
LOWER
TEMPERATURE
ADJUSTMENT
POTENTIOMETER
3
1
2
5
4
RTD SE NSOR
1500 WATTS EACH
43
48
BLUE
N
Q
P
M
ELEMENT CONTACTOR
6
7
8
9
10
11
UPPER
TEMPERATURE
ADJUSTMENT
POTENTIOMETER
3
1
2
5
4
RTD SE NSOR
YELLOW or BLUE
ORANGE
PURPL E
G
R
A
Y
COOLING FAN
IN CONTROL
BOX
YELLOW or BLUE
ORANGE
PURPL E
R
R
E
D
BROWN
COOL-DOWN THERMOSTATS.
CLOSE ON TEMPERATURE RISE.
VACUUM SWITCHES.
CLOSE ON BLOWER VACUUM
50
BROWN
20
BROWN
C1
C1
C1
C1
14 GA WHITE
14 GA WHITE
14 GA WHITE
14 GA BROWN
VHVA1620E Schematic 208, 220 or 240VAC, 50/60Hz, 1 Phase
U4160Q