General service chart, Sbd tank type heaters service handbook – State Industries SANDBLASTER SBD85 500 User Manual
Page 42
SBD TANK TYPE HEATERS
SERVICE HANDBOOK
Technical Training Department
Ashland City, TN ©2003
41
GENERAL SERVICE CHART
N
O
I
T
U
L
O
S
E
S
U
A
C
N
O
I
T
I
D
N
O
C
DAMPER OPENS NO POWER
TO IID MODULE
. DAMPER NOT FULLY OPEN
. DEFECTIVE PROTECTOR
SWITCH
.EFFIKAL – REPLACE DAMPER CONTROL
ASSEMBLY
. REPLACE DAMPER
. REPLACE PC BOARD
PILOT LIGHTS, SPARKS
CONTINUOUSLY
PILOT FLAME NOT PROVING
SEE FLAME RECTIFICATION - STEP 16
HEATER WILL NOT IGNITE
NOT PROVING PILOT
FLAME EXISTANCE
INTERRUPT 120 VAC POWER
. CHECK GROUND WIRE
ATTACHMENT
. CLEAN OR REPLACE PILOT
ASSEMBLY
Y
L
E
T
E
L
P
M
O
C
T
O
N
S
A
G
T
O
L
I
P
INTERRUPTED AT END OF
HEATING CYCLE
. CHECK SUPPLY GAS PRESSURE
. REPLACE GAS VALVE
. THERMAL EXPANSION
ADD THERMAL EXPANSION TANK
WEEPING TEMPERATURE
AND
PRESSURE RELIEF VALVE
E
V
L
A
V
F
E
I
L
E
R
E
C
A
L
P
E
R
E
V
L
A
V
Y
T
L
U
A
F
.
. EXCESSIVE WATER
TEMPERATURE
. CHECK WIRING
. REPLACE DUAL CONTROLLER
LARGE VOLUME WATER
RELIEF FROM T&P VALVE
. FAULTY RELIEF VALVE
REPLACE RELIEF VALVE
PREMATURE TANK
LEAKAGE
CONDENSATION
. INCREASE STORED WATER
TEMPERATURE AND CONFIRM
PROPERLY SIZED APPLICATION
R
I
A
D
E
T
A
N
I
M
A
T
N
O
C
. REMOVE CONTAMINANTS.
. SUPPLY CLEAN COMBUSTION
AIR.
R
E
M
M
A
H
R
E
T
A
W
. ADD WATER HAMMER
ARRESTOR.
. REDUCE WATER PRESSURE.
. REMOVE UNNECESSARY CHECK
VALVES.
N
O
I
S
N
A
P
X
E
L
A
M
R
E
H
T
ADD THERMAL EXPANSION TANK.
-
S
K
C
E
H
C
E
D
O
N
A
E
L
U
D
E
H
C
S
S
E
D
O
N
A
D
E
T
E
L
P
E
D
REPLACE AS NEEDED.
G
N
I
T
N
E
V
T
R
O
P
P
U
S
T
F
A
H
S
G
N
I
D
N
I
B
N
E
P
O
T
O
N
L
L
I
W
R
E
P
M
A
D
L
O
R
T
N
O
C
R
E
P
M
A
D
E
C
A
L
P
E
R
-
L
A
K
I
F
F
E
R
O
T
O
M
R
E
P
M
A
D
ASSEMBLY
NO SPARK AT PILOT -
DAMPER FULLY OPEN
DAMPER ASSEMBLY
SEE STEP 10A
Services Switch may bypass problem until
replacement part is received. (EFFIKAL –
REPLACE DAMPER CONTROL ASSEMBLY
2
1
P
E
T
S
D
II
E
C
A
L
P
E
R
E
L
U
D
O
M
D
II
3
1
P
E
T
S
E
L
B
A
C
E
C
A
L
P
E
R
E
L
B
A
C
K
R
A
P
S