State Industries SANDBLASTER SBD85 500 User Manual
Page 28
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SBD TANK TYPE HEATERS
SERVICE HANDBOOK
Technical Training Department
Ashland City, TN ©2003
27
NORMAL OPERATION (continued)
Condition:
• Thermostat closed, damper in process of opening
STEP 8A
TEST FOR 24VAC BETWEEN BLACK AND ORANGE
N
E
H
T
F
I
.
B
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
.
B
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
Condition:
• Thermostat closed, damper fully open
STEP 8B
TEST FOR 24VAC BETWEEN BLACK AND YELLOW
N
E
H
T
F
I
.
A
0
1
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
.
B
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
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