Rinnai EX08CT Manuel D'installation Et D'utilisation page 17

Adjust Gas Pressure Settings
1. Turn off the gas and the power supply.
2. Remove the 5 screws that hold the louver assembly
and front panel. Lift the panel straight up and then
remove it.
3. Remove two pressure point screws (1/8 NPT tap) with
3/16 Allen wrench 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.
(Press the "Set back" button after turning on the
power supply.) 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 and altitude using
▲ and ▼ buttons. Refer to the table below.
6. Press the test switch twice to record the gas type
code into memory. .
7. Press the ON/OFF button to operate the appliance.
8. Press the test switch twice. The LED will display
"PL".
9. Compare the pressure reading on the manometer to
the desired manifold test pressure (low) for your gas
type and altitude. If necessary adjust the low fire
pressure using the ▲ and ▼ buttons.
10. Press the test switch. The LED will display "PH"
indicating high fire mode.
Code A1 / A5 *
0-2000 ft
Altitude
0-610 m
EX08CT
Manifold test
0.58 in
pressure -
(15 mm)
W.C. Low
Manifold test
3.4 in
pressure -
(86 mm)
W.C. High
EX11CT
Manifold test
0.60 in
pressure -
(15 mm)
W.C. Low
Manifold test
2.2 in
pressure -
(56 mm)
W.C. High
* For the EX11CT with natural gas:
Natural Gas
A2 / A6 * A3 / A7 *
2001-5200 ft 5201-7700 ft
611-1585 m 1586-2347 m
0.62 in 0.70 in
(16 mm) (18 mm)
3.6 in 4.1 in
(92 mm) (103 mm)
0.64 in 0.72 in
(16 mm) (19 mm)
1.9 in 1.7 in
(49 mm) (44 mm)
Use A1, A2, A3, or A4 for venting up to 7 feet (2.1 m) with one elbow.
Use A5, A6, A7, or A8 for venting exceeding 7 feet (2.1 m) with one elbow.
Rinnai Corporation EX08CT, EX11CT Manual
Test Switch
PC Board
Pressure
Point
Nozzle Manifold
Pressure
Point
A4 /A8 * L1 / L5
7701-10200 ft 0-2000 ft
2348-3109 m 0-610 m
0.78 in 0.86 in
(20 mm) (22 mm)
3.2 in 5.8 in
(82 mm) (147 mm)
0.80 in 1.06 in
(20 mm) (27 mm)
3.8 in
1.6 in
(95 mm)
(40 mm)
Propane Gas
L2 / L6 L3 / L7
2001-5200 ft 5201-7700 ft
611-1585 m 1586-2347 m
0.92 in 1.04 in
(24 mm) (27 mm)
6.2 in 7.0 in
(158 mm) (177 mm)
1.16 in 1.28 in
(29 mm) (33 mm)
3.3 in 3.0 in
(84 mm) (75 mm)
L4 / L8
7701-10200 ft
2348-3109 m
1.16 in
(29 mm)
5.5 in
(140 mm)
1.41 in
(36 mm)
2.7 in
(69 mm)
17