Rinnai Energysaver RHFE-559T Service Manual page 29

CAUTION
Some parts on the PCB (except switches) are supplied
with 230V AC: an electrical shock may occur.
Areas near the exhaust become hot and cause burn.
3. Remove two pressure point screws and attach the
manometer to both pressure points. Both pressure
points must be used in order to measure the
differential pressure. Ensure that the manometer is
properly calibrated.
4. Turn on the gas and power supply to the appliance.
With the unit in the off position, press the test switch
at the top of PC board until it beeps.
5. Select the correct code for gas type using ▲ and ▼
buttons. Refer to the table 1.
6. Press the test switch twice to record the gas type
code into memory. (a)
7. Press the ON/OFF button to operate the appliance.
8. Press the test switch twice. The LED will display "PL"
indicating low fire mode.
9. Compare the pressure reading on the manometer to
the desired manifold test pressure (low) for your gas
type. If necessary adjust the low fire pressure using
the ▲ and ▼ buttons.
10. Press the test switch.
indicating high fire mode.
11. Compare the pressure reading on the manometer to
the desired manifold test pressure (high) for your gas
type. 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 the two pressure
point screws.
14. Operate the unit and:
 check the normal operating sequence
 visually inspect the flame
 check for gas leaks at the test points
GAS PRESSURE ADJUSTMENT
1. Turn off the gas and the
power supply.
2. Remove the lower
panel pressing and pulling
as shown in the picture on
the left. Unscrew the 5
frontal screws that hold the
louver assembly. Finally lift
the panel straight up and
remove it. (see pictures on
the left side)
The LED will display "PH"
Rinnai UK RHFE-559T Manual
Test Switch
PC Board
Nozzle Manifold
Pressure
Points
(a)
JUST ALTERING THE GAS TYPE ON
THE PCB DOES NOT CONSTITUTE THE
CONVERSION FROM ONE GAS TYPE TO
ANOTHER. THE CORRECT GAS INJEC-
TORS AND CORRECT DAMPER MUST
BE FITTED
29