Use and Care Manual

18 Rinnai Corporation EX08CT, EX11CT Manual
11. Compare the pressure reading on the manometer
to the desired manifold test pressure (high) for
your gas type and altitude. If necessary adjust
the high fire pressure using the ▲ and ▼ buttons.
12. Press the ON/OFF button again. The LED display
turns blank and the appliance returns to the
normal OFF mode.
13. Remove manometer and install Allen head
screws. Operate the unit and
1. Install the front panel and bottom cover.
2. If doing a gas type conversion, place the new
conversion plate (label) on the front cover.
Check that the burner flames are operating normally.
The flame can be seen through the circular window
through the louvers.
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.
Visual Inspection of Flame
NORMAL
Flame Rod
Long, clear, blue,
stable flames
ABNORMAL
Yellow flames or
orange color
Flame Rod
Final Assembly
•check the normal operating sequence
•visually inspect the flame
•check for gas leaks at the test points
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 heater has an automatic ignition system. When
the main burner has lit, the combustion lamp will glow
red, and the spark will stop.
Adjust Gas Pressure Settings
Checklist for Gas and Electricity
□ 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.