Rinnai EX22 User Manual

2
Rinnai Corporation EX17 / EX22 Manual
This appliance may be installed in an aftermarket, permanently located, manufactured home
(USA only) or mobile home, where not prohibited by local codes.
This appliance is only for use with the type of gas indicated on the rating plate. This appliance
is not convertible for use with other gases, unless a certified kit is used.
Consumer Safety Information
Safety Definitions ............................................. 3
Safety Behaviors and Practices ....................... 3
Safety Features ................................................ 4
Specifications
Appliance Specifications .............................. 4, 5
Features ........................................................... 5
Operating Instructions
Getting to Know your New Heating Appliance 6
Control Panel ................................................... 7
LED Display ..................................................... 7
Setting the Clock .............................................. 8
Operating the Heater Manually ........................ 9
Programmable Weekly Timer ........................ 10
Programming the Weekly Timers................... 11
Programming the Weekly Timers (Example) .....
................................................................. 12, 13
Weekly Timer Review Function ..................... 14
Your Weekly Timer Program.......................... 15
Factory Pre-set Program................................ 15
Operating the Timers ..................................... 16
Override Function .......................................... 17
Returning to Manual Mode ............................ 16
Frost Protection .............................................. 18
Energy Saving Mode ...................................... 19
Function Lock ................................................. 20
Humidifier and Air Flow Direction .................. 21
Care and Maintenance ...................................22
Before Making a Service Call ......................... 23
Fault Codes .................................................... 24
Restart Function ............................................. 25
Troubleshooting ............................................. 25
Installation Instructions
General Instructions ....................................... 26
Gas Connection ............................................. 27
Clearances to Combustibles .......................... 27
Attach Back Covers (Sides only) .................. 27
Flue Terminal Clearances ....................... 28, 29
Dimensions .................................................... 30
Installation Parts ........................................... 31
Drilling Flue Hole ........................................... 32
Flue Manifold Installation ......................... 33, 34
Extension Kit Installation .......................... 35-38
Connecting the Appliance .............................. 39
Operating Instructions ................................... 40
Cut-Away Diagram .........................................
41
Wiring Diagram .............................................. 42
Ladder Diagram ............................................. 43
Flow Diagram ................................................. 44
Parts List ................................................... 45-53
Consumer Support
Warranty Information ..................................... 54
Limited Warranty ...................................... 54, 55
Table of Contents
This appliance may be installed as an OEM installation in a manufactured home (USA only) or
mobile home and must be installed in accordance with the manufacturer’s instructions and the
Manufactured Home construction and Safety Standard, Title 24 CFR, Part 3280, in the United
States, or the Mobile Home Standard, CAN/CSA Z240 MH Series, in Canada. This appliance
is only for use with types of gas indicated on the rating plate. A conversion kit is supplied with
the appliance.

Rinnai EX22 Specifications

General

Brand	Rinnai
Model	EX22
Category	Furnace
Language	English