ghi_tx001464gb_FM10.fm
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HI400HD D / HD G Setting up the Burner
6.4 Adjusting the Gas Pressure (G Models)
Prerequisites
■ Machine is stopped
■ Hex key set
■ Yellow Jacket
®
gas pressure test kit (0–15 in. w.c. manometer)
■ Flat-head screwdriver
■ Phillips-head screwdriver
■ Small adjustable wrench
Procedure
1. Verify that the machine is shut down, stopped, and connected to electrical
power (115V 60 Hz).
2. Close the gas valve (a) on the inlet to the gas train.
3. Connect the manometer to the machine.
4. Verify that the supply gas pressure is 15 in. w.c. maximum. Exceeding the
maximum inlet gas pressure may result in gas train component damage.
5. Remove the dust cap (b) on the Maxitrol
®
gas regulator stem.
This procedure continues on the next page.
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