Rinnai Energysaver RHFE-556T, Installation And User Manual, Page: 27 / 36

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TESTING
PRESSURE CHECKING PROCEDURE:
Caution- 230 V inside appliance.
1. Check that SW6 (Dip switches) are correct for the gas
type for which the appliance is to be used. (Refer to
diagram opposite).
2. There are two test points, one on the heat exchanger, one
on the gas manifold. Connect a differential pressure
gauge between both test points. (Connect one side of the
gauge to one point, the other side of the gauge to the
other). If you are using an electronic manometer, connect
the
- side to the heat exchanger test point.
3. Press the ON/OFF button to operate the appliance.
4. With the appliance operating, press SW5 once.
5. Press SW4 to operate the appliance on forced low.
6. Compare the pressure to the low pressure shown on the
bottom of this page.
7. Press SW4 again.
8. Press SW3 to operate the appliance on forced high.
9. Check the pressure against the high pressure shown on
the bottom of this page.
10. Press SW3 again.
11. Press SW5 again to return the heater to normal operation.
12. Turn the heater OFF, remove the pressure gauge, and
replace the test point screws.
13. Reassemble appliance, set the remote clock if fitted, (see
page 21) and check appliance operaton. When appliance
is on check test points for gas tightness.
THE REGULATOR HAS BEEN FACTORY PRE-SET. IF
THE PRESSURE IS INCORRECT, CHECK THE SUPPLY
PRESSURE FIRST, BEFORE MAKING ANY ADJUSTMENT
TO THE APPLIANCE.
ADJUSTMENT OF BURNER DIFFERENTIAL PRESSURE IS
BY MEANS OF THE ROOM ADJUSTMENT BUTTONS ON
THE CONTROL PANEL AND FOLLOWING THE
INSTRUCTIONS GIVEN BELOW:
1. Follow checking procedure 1-6, reset the low pressure by
using the “
▲
” or “
▼
” buttons on the control panel.
2. Press SW4 again to lock in the selected setting.
3. Follow checking procedure 8 and 9, reset the high
pressure by using the “
▲
” or “
▼
” buttons on the control
panel.
4. Press SW3 again to lock in the selected setting.
5. Press SW5 to return the heater to normal operation.
6. Turn the heater OFF, remove the pressure gauge, and
replace the test point screws.
7. Reassemble appliance, set the internal and / or remote
clock if fitted, and check appliance operation. When
appliance is on check test points for gas tightness.
556T
NG
LPG
SW6 DIP SWITCH
OFF
1 2 3 4
ON OFF OFF
ON
1 2 3 4
OFF OFF OFF
SW6
SW1
SW2
SW3
SW4
SW5
Manifold
Test point B
Gas Valve
Test
point A
Adjusting screw
BURNER
PRESSURE
SETTINGS
INJECTOR
SIZE
HIGH
LOW
9.2mbar
1.8mbar
1.13
NG
10.6mbar
2.0mbar
0.85
LPG