State Industries SANDBLASTER SBD85 500 User Manual
Page 29
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SBD TANK TYPE HEATERS
SERVICE HANDBOOK
Technical Training Department
Ashland City, TN ©2003
28
TROUBLESHOOTING THE EFFIKAL DAMPER
Condition:
Thermostat closed, damper
closed
STEP 9A
TEST BETWEEN BLACK (COMMON) AND BROWN
ON THE DAMPER BOARD
N
E
H
T
F
I
t
c
e
rr
o
c
s
i
s
i
h
T
t
n
e
s
e
r
p
s
i
C
A
V
4
2
24VAC is not present
• See Steps 1 thru 4
Check the harness plugs connecting heater
and damper for looseness or damage.
Wires are from left to right:
Black Yellow Brown Orange
•
•
•
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