3
CAUTION
The use of Flexible Connectors (FLEX) is NOT recommended unless they are properly sized according to the supplier
recommendations for the heater rating.
Gas Supply Verification Procedure
WARNING
Risk of fire and explosion.
Alteration, service, or maintenance of the Combination Gas Control Valve can lead to fire or explosion,
causing loss of life, personal injury, and/or property damage.
DO NOT ATTEMPT TO ADJUST
1. Shut off the gas supply to the heater.
2. Loosen the small screw inside the pressure tap as shown in
Figure 2
.
3. Connect the manometer hose.
4. Open the gas supply to the heater.
5. Turn on the heater.
6. Take the gas pressure reading.
7. Turn off the heater.
8. Shut off the gas supply to the heater.
9. Disconnect the manometer hose.
10. Tighten the small screw inside the pressure tap.
11. Open the gas supply to the heater.
12 Verify that the seal connection in the pressure tap is closed by testing for leaks
with soapy water.
Note:
If the pressure reading is out of range, regulate the incoming gas pressure,
(see Table below).
Table 1: Inlet Gas Pressure Requirements
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r
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s
s
e
r
P
s
a
G
m
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m
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i
M
m
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M
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a
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a
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0
1
-
a
P
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0
.
1
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m
0
6
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a
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.
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5
2
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5
.
2
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0
6
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a
P
k
0
.
6
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Lightly loosen the
small screw inside the pressure tap
and then attach/connect
the manometer hose.
Figure 2.
THE GAS CONTROL VALVE
Содержание MASTERTEMP
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