Rinnai EX38CT RHFE-1005FTA2 Installation And Operation Manual page 19

Adjust Gas Pressure Settings
mode.
15. Remove manometer and install Allen head screws.
Operate the unit and
16. Return unit to normal functioning.
•
check the normal operating sequence
•
visually inspect the flame
•
check for gas leaks at the test points
NOTE: If the LED display shows "HF" or "LF" do not
touch the ▲ and ▼ buttons or Economy button.
In this case push SW1.
Normal Operating Sequence
When you press the ON/OFF button, the LED display
will illuminate, the combustion fan will begin to run,
and the spark will ignite the main burner.
This furnace has an automatic ignition system. When
the main burner has lit, the combustion lamp will glow
red, and the spark will stop.
Visual Inspection of Flame
Check that the burner flames are operating normally.
The flame can be seen through the circular window.
When operating normally the burner flame should
appear as long, clear, blue, stable, streaks. Yellow
flames or an orange color is abnormal and
maintenance is required.
NORMAL
Flame Rod
Long, clear, blue,
stable flames
ABNORMAL
Flame Rod
Yellow flames or
orange color
Final Assembly
1. Install the front panel and bottom cover.
2. Place the conversion plate (label) on the front
Checklist for Gas and Electricity
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Rinnai Corporation EX38CT Manual
cover.
A manual gas control valve is placed in the gas
line to the heater.
Check the gas lines and connections for leaks.
Confirm that the gas inlet pressure is within limits.
Confirm that the heater is rated for the gas type
supplied.
Confirm that the electricity is supplied from 120
VAC, 60 Hz power source and is in a properly
grounded circuit.
Confirm that an extension cord or an adapter plug
has NOT been used with the heater.
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