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M
i
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o v
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H
n o
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w
N
t a
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o T
P
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K
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M
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U
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M
P
D
- T
3 3
8 2
M
l i
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M
P
D
- R
3 3
8 2
M
P
- D
5 3
0 3
M
l i
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M
P
- D
0 4
5 3
M
l i
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M
P
- D
5 4
0 4
M
l i
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M
P
D
- T
3 3
8 2
l E
c e
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M
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3 3
8 2
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5 3
0 3
l E
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0 4
5 3
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T I
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P
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K
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Step 4. Millivolt Appliances - SIT Systems
a. See Figure 59 and the instructions provided
with the kit. Using a Torx T20, remove and
discard the three pressure regulator mounting
screws. Remove the pressure regulator, spring,
poppet, diaphragm and bushing. Discard all
removed components. Ensure the rubber gas-
ket installed on the back of the replacement
pressure regulator is properly positioned and
install the new pressure regulator using the
new screws supplied with the kit. Tighten
screws to 25 In. lb. torque.
30
e
l l
S
s y
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m
s
-
G
s a
C
o
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r e
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P
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a C
l a t
g o
N
. o
M
P
t l o
6 2
M
1 5
M
P
t l o
6 2
M
2 5
M
t l o
6 2
M
3 5
M
t l o
6 2
M
4 5
M
M
P
n o
c i
6 2
M
9 5
M
P
n o
c i
6 2
M
0 6
M
n o
c i
6 2
M
1 6
M
n o
c i
6 2
M
2 6
M
S
s y
e t
m
s
-
G
s a
C
o
v n
r e
i s
n o
P
o r
y T
e p
a C
l a t
g o
N
. o
M
M
P
t l o
H
0 2
9 0
M
P
t l o
H
0 2
1 1
M
t l o
H
0 2
3 1
M
t l o
H
0 2
5 1
M
Pressure
Regulator
Figure 59
M
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H
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N
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G
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K
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M
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D
- T
3 3
8 2
M
l i
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t l o
6 2
D
- R
3 3
8 2
P
- D
5 3
0 3
M
l i
v i l
t l o
6 2
P
- D
0 4
5 3
M
l i
v i l
t l o
6 2
P
- D
5 4
0 4
M
l i
v i l
t l o
6 2
D
- T
3 3
8 2
l E
c e
r t
n o
c i
6 2
D
- R
3 3
8 2
P
- D
5 3
0 3
l E
c e
r t
n o
c i
6 2
P
- D
0 4
5 3
l E
c e
r t
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c i
6 2
P
- D
5 4
0 4
l E
c e
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c i
6 2
M
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N
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D
- T
3 3
8 2
m
l i
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t l o
H
D
- R
3 3
8 2
P
- D
5 3
0 3
m
l i
v i l
t l o
H
P
- D
0 4
5 3
m
l i
v i l
t l o
H
P
- D
5 4
0 4
m
l i
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t l o
H
SIT Millivolt Gas Valve
Remove
These
Components
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
s
-
Pilot for SIT Millivolt Gas Valve
r e
i s
n o
g o
N
. o
M
5 5
M
6 5
M
7 5
Pilot
Orifice
M
8 5
M
3 6
Figure 60
M
4 6
b. Attach manometer to the manifold side
M
5 6
pressure test fitting and verify manifold pres-
M
6 6
sure reads 3.5 inches water column (0.87 kPa)
for natural gas, and 10.0 inches water column
(2.49 kPa) for propane gas.
r e
i s
n o
c. Refer to Figure 60 and remove the pilot
hood assembly to access the hexed pilot ori-
g o
N
. o
fice. Remove and replace the orifice with the
one provided with the kit.
0 2
0 1
Step 5. Millivolt Appliances -
0 2
2 1
Honeywell Systems
0 2
4 1
a. Convert the gas valve as follows
0 2
6 1
( see Figure 61 ) :
Remove the plastic protecting cap. Remove
the gas type setting screw by turning it coun-
terclockwise. Obtain the replacement gas type
setting screw from the kit and screw it into
place (red for propane and blue for natural
gas). Tighten the gas type setting screw by
turning it clockwise. Replace the plastic pro-
tecting cap.
Honeywell Millivolt Gas Valve
Adjusting Knob
Regulator Cap
Figure 61
Conversion screw
(blue natural gas;
red LP/propane gas)
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