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Rev. E 4-15-05 P/N 472235
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 7.
GAS PRESSURE REQUIREMENTS
MiniMax NT TSI
MiniMax NT STD
Inlet Manifold
Illustrations above are for Natural Gas, for Propane requirements, see Table 7.
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