Rinnai EX22C (RHFE-559FTA) Conversion Manual
Conversion Manual for the
EX17C (RHFE-434FTA)
EX22C (RHFE-559FTA)
Energysaver®
Gas Direct Vent Wall Furnace
English
Safety Symbols ......................... 2
Technical Data .......................... 2
High Altitude .............................. 2
Conversion Procedure .............. 3
⇒ for the conversion from
Natural Gas (NG) to Liquid Propane Gas (LPG)
⇒ for the conversion from
Liquid Propane Gas (LPG) to Natural Gas (NG)
⇒ for adjustments at high altitude
(greater than 2000 ft / 610 m)
WARNING
This conversion kit shall be installed by a qualified service agency in
accordance with the manufacturer’s instructions and all applicable codes and
requirements of the authority having jurisdiction. If the information in these
instructions is not followed exactly, a fire, explosion or production of carbon
monoxide may result causing property damage, personal injury or loss of life.
The qualified service agency is responsible for the proper installation of this
kit. The installation is not proper and complete until the operation of the
converted appliance is checked as specified in the manufacturer’s instructions
supplied with the kit.
Adjust Gas Pressure Settings ... 4
Parts List ................................... 11
Français
Sécurité Du Consommateur ...... 7
Données Techniques ................ 7
Haute Altitude ........................... 7
Procédure de conversion .......... 8
Ajustage et Reglage de la Presion
de Gas ...................................... 9
Liste des Pièces ........................ 11
Safety Symbols
This is the safety alert symbol. This symbol alerts you to potential hazards that can kill or hurt you and
others.
DANGER
WARNING
CAUTION
Minimum supply gas pressure 3.5 in (89 mm) W.C. 8.0 in (203 mm) W.C.
Maximum supply gas pressure 10.5 in (267 mm) W.C. 13.0 in (330 mm) W.C.
EX17C BTU/hour input Low 8200 High 16700 Low 8200 High 16700
EX17C BTU/hour output Low 6560 High 13360 Low 6560 High 13360
Indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury.
Indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury.
Indicates a potentially hazardous situation which, if not avoided, could result in minor or
moderate injury. It may also be used to alert against unsafe practices.
Technical Data
Natural Gas Propane Gas
EX22C BTU/hour input Low 8200 High 21500 Low 8200 High 20700
EX22C BTU/hour output Low 6560 High 17200 Low 6560 High 16560
The input rate can be verified by following the procedure in the National Fuel Gas Code (NFPA54 / ANSI Z223.1, 2006 or latest
edition).
High Altitude Installation
Conversion of the appliance for operation at high altitudes (> 2000 ft, 610 m) requires the completion of the
section, Adjust Gas Pressure Settings, using the high altitude manifold test pressures above. No parts need to be
replaced for high altitude.
For high altitude installations in Canada, the conversion shall be carried out by a manufacturer’s authorized
representative, in accordance with the requirements of the manufacturer, provincial or territorial authorities having
jurisdiction and in accordance with the requirements of CAN/CGA-B149.1 or CAN/CGA-B149 installation codes.
2 Rinnai Corporation EX17C / EX22C Conversion Manual
Conversion Procedure
CAUTION
Confirm that the inlet gas pressure is between the minimum and maximum pressures allowed for this appliance.
Gain Access
1. Turn off the gas and the power supply.
The gas supply shall be shut off prior to disconnecting the electrical power, before
proceeding with the conversion.
2. Remove the 5 screws that hold the louver
assembly and front panel. Lift the panel straight
up and then remove it.
Replace Components
Refer to the Technical Data and Parts List to ensure to
the correct injectors are installed.
1. Remove the 2 manifold screws. Rotate the
manifold and connecting tube to access the
injectors.
2. Replace the 4 injectors with the proper size for the
gas type to be used.
3. Install the manifold (2 screws).
Screw
locations
4. Complete the procedure, Adjust Gas Pressure
Settings.
Rinnai Corporation EX17C / EX22C Conversion Manual 3
Manifold
Injectors
Manifold
screws
Adjust Gas Pressure Settings
CAUTION
Do not touch any other areas on the PC board besides
the switches while power is supplied to the appliance.
Parts of the PC board are supplied with 120 volts AC.
CAUTION
Do not touch the areas at or near the exhaust. These
areas become very hot and could cause burns.
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.
Pressure
Point
Test Switch
PC Board
Nozzle Manifold
Pressure
Point
Code
Altitude
EX17C
Manifold test
pressure -
W.C. Low
Manifold test
pressure -
W.C. High
EX22C
Manifold test
pressure -
W.C. Low
Manifold test
pressure -
W.C. High
Natural Gas Propane Gas
A1 / A5 A2 / A6 A3 / A7 A4 /A8 L1 / L5 L2 / L6 L3 / L7 L4 / L8
0-2000 ft
0-610 m
0.44 in
(11 mm)
1.6 in
(40 mm)
0.44 in
(11 mm)
2.6 in
(65 mm)
2001-5200 ft
611-1585 m
0.48 in
(12 mm)
1.4 in
(35 mm)
0.48 in
(12 mm)
2.2 in
(57 mm)
5201-7700 ft
1586-2347 m
0.54 in
(14 mm)
1.2 in
(32 mm)
0.54 in
(14 mm)
2.0 in
(52 mm)
7701-10200 ft
2348-3109 m
0.60 in
(15 mm)
1.1 in
(29 mm)
0.60 in
(15 mm)
1.8 in
(47 mm)
0-2000 ft
0-610 m
0.68 in
(17 mm)
2.7 in
(69 mm)
0.68 in
(17 mm)
4.0 in
(101 mm)
2001-5200 ft
611-1585 m
0.74 in
(19 mm)
2.4 in
(61 mm)
0.74 in
(19 mm)
3.5 in
(89 mm)
5201-7700 ft
1586-2347 m
0.82 in
(21 mm)
2.2 in
(55 mm)
0.82 in
(21 mm)
3.1 in
(80 mm)
7701-10200 ft
2348-3109 m
0.92 in
(23 mm)
2.0 in
(50 mm)
0.92 in
(23 mm)
2.9 in
(72 mm)
4 Rinnai Corporation EX17C / EX22C Conversion Manual
Loading...