34
For Service Technicians
START BOILER
R
E
N
R
U
B
T
O
L
I
P
F
I
S
T
H
G
I
L
R
E
N
R
U
B
T
O
L
I
P
F
I
T
H
G
I
L
T
O
N
S
E
O
D
T
O
N
O
D
S
R
E
N
R
U
B
N
I
A
M
T
U
B
E
L
P
U
O
C
O
M
R
E
H
T
K
C
E
H
C
V
4
2
R
O
F
K
C
E
H
C
AT GAS VALVE
IF NOT 24 V:
IF 24 V:
IF O.K.
IF DEFECTIVE
CHECK TRANSFORMER OUPUT
REPLACE
E
C
A
L
P
E
R
E
C
A
L
P
E
R
E
V
L
A
V
S
A
G
V
4
2
R
O
F
GAS VALVE
THERMOCOUPLE
IF NO
IF 24 V:
24V:
REPLACE
PROBLEM IN
TRANSFORMER
LIMIT
CIRCUITS
Electrical—Standing Pilot
WARNING—HIGH VOLTAGE:
For qualified
technicians ONLY.
