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Rev. E 4-19-05 P/N 472089
13
TESTING GAS PRESSURE
OFF
ON
Regulator Adjustment Cap
1/8" NPT Plug
(Manifold Press)
1/8" NPT Plug
(Inlet Press)
Figure 4.
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Section III. Installation
Table 5.
MiniMax NT LN
Illustration above is for Natural Gas, see Table 5.
1. Push the power switch to “OFF”.
2. Turn the gas valve knob to “OFF”.
3. Remove 1/8 in. NPT plug on the outlet side
of the valve and screw in the fitting from the
Manometer kit.
4. Connect the Manometer hose to the fitting.
5. Turn the gas valve knob to “ON”.
6. Turn on the heater and read the Manometer.
7. The Manometer must read per the values of the Gas
Pressure Requirement Table, on manifold side of the
gas valve, while operating.
8. If reading is below specified; check the inlet pressure
while the heater is running to make sure of proper
supply before attempting adjustments.
9. For adjustment, remove the Regulator Adjustment
Cap and using a screwdriver turn the screw clockwise to increase - counterclockwise to decrease gas
pressure.
CAUTION
The use of Flexible Connectors (FLEX) is NOT recommended as they cause excessive high gas pressure drops.
Inlet Manifold
GAS PRESSURE REQUIREMENTS