2
EN
Contents
1 Explanation of Symbols and Safety
Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Recognize Safety Information . . . . . . . . . . . . . 2
1.2 Understand Signal Words . . . . . . . . . . . . . . . . 2
1.3 Supplemental Directives . . . . . . . . . . . . . . . . . 3
1.4 General Safety Messages . . . . . . . . . . . . . . . . 3
2 Intended Use . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3 General Information . . . . . . . . . . . . . . . . . . . . . 4
3.1 Tools and Materials . . . . . . . . . . . . . . . . . . . . . 4
3.2 Component Locations. . . . . . . . . . . . . . . . . . . 4
3.3 Model Identification . . . . . . . . . . . . . . . . . . . . 5
3.4 Unit Specifications . . . . . . . . . . . . . . . . . . . . . . 6
4 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.1 Preparing the Installation Location . . . . . . . . . 7
4.2 Blocking the Water Heater . . . . . . . . . . . . . . . 8
4.3 Installing the Water Hose . . . . . . . . . . . . . . . . 8
4.4 Installing The Gas Line . . . . . . . . . . . . . . . . . . . 9
4.5 Installing The Control Switch . . . . . . . . . . . . . 9
4.6 Wiring the 115 VAC Power Supply . . . . . . . . 10
4.7 Installing The Unit . . . . . . . . . . . . . . . . . . . . . 12
4.8 Installing The Access Door . . . . . . . . . . . . . . 14
4.9 Performing Leak Testing . . . . . . . . . . . . . . . . 14
5 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.1 Operating the Electronic Control . . . . . . . . . 15
5.2 Clearing a Water Heater Operation Failure . 16
5.3 Shutting Down the Water Heater . . . . . . . . . 16
6 Maintenance And Care . . . . . . . . . . . . . . . . . . 16
6.1 Servicing the DSI Control Board . . . . . . . . . . 16
6.2 Performing Preventative Maintenance . . . . . 17
6.3 Electronic Ignition Module Cleaning . . . . . . 18
6.4 Maintaining the Water Heater Tank. . . . . . . . 18
6.5 Special Requirements for EXT Models . . . . .20
6.6 Servicing the Mixing Valve . . . . . . . . . . . . . .20
6.7 Servicing the P/T Relief Valve . . . . . . . . . . . .20
6.8 Using After-Market Water Heating Element
Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7 Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . 22
8 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
LIMITED TWO-YEAR WARRANTY . . . . . . . . . . . . . 23
Contents
Service Center & Dealer Locations
Visit: www.dometic.com
Please read these instructions carefully and follow all instructions,
guidelines, and warnings included in this product manual in order to
ensure that you install, use, and maintain the product properly at all
times. These instructions MUST stay with this product.
By using the product, you hereby confirm that you have read
all instructions, guidelines, and warnings carefully and that you
understand and agree to abide by the terms and conditions as set
forth herein. You agree to use this product only for the intended
purpose and application and in accordance with the instructions,
guidelines, and warnings as set forth in this product manual as well
as in accordance with all applicable laws and regulations. A failure
to read and follow the instructions and warnings set forth herein may
result in an injury to yourself and others, damage to your product,
or damage to other property in the vicinity. This product manual,
including the instructions, guidelines, and warnings, and related
documentation, may be subject to changes and updates. For up-to-
date product information, please visit www.dometic.com.
1 Explanation of Symbols and
Safety Instructions
This manual has safety information and instructions to
help you eliminate or reduce the risk of accidents and
injuries.
1.1 Recognize Safety Information
This is the safety alert symbol.
It is used to alert
you to potential physical injury hazards. Obey all
safety messages that follow this symbol to avoid
possible injury or death.
1.2 Understand Signal Words
A signal word will identify safety messages and property
damage messages, and also will indicate the degree or
level of hazard seriousness.
