State Industries SANDBLASTER SBD85 500 User Manual
Page 27
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SBD TANK TYPE HEATERS
SERVICE HANDBOOK
Technical Training Department
Ashland City, TN ©2003
26
HARNESS CHART
Heater Harness
Function
Damper Harness
Black
24V Hot
1-Brown
Yellow
24V from Thermostat
2-Orange
Red
24V from damper
3-Yellow
White
24V common
4-Black
NORMAL OPERATION
Condition:
• Heater on standby
• Damper closed
• High Limit closed
STEP 8
TEST FOR 24VAC BETWEEN BLACK (COMMON)
AND BROWN
STEP 8. TEST FOR 24VAC BETWEEN BLACK (COMMON) AND BROWN
N
E
H
T
F
I
.
A
8
p
e
t
S
o
t
e
u
n
it
n
o
C
t
n
e
s
e
r
p
s
i
C
A
V
4
2
A
9
p
e
t
S
g
n
it
o
o
h
s
e
l
b
u
o
r
T
e
e
S
t
n
e
s
e
r
p
t
o
n
s
i
C
A
V
4
2
Wires are from left to right:
Black Yellow Brown Orange
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