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INTRODUCTION
This manual is for use by an authorized service technician to install a Dometic DF Series Furnace. Should you require further
information, contact Dometic. The design of the DF Series Furnace (hereinaer referred to as “Furnace”) has been certified for
installation in a recreational vehicle (hereinaer referred to as “RV”) as an MSP Category III Furnace. Follow these instructions to
ensure the correct installation of the Furnace. Failure to install the Furnace according to these installation instructions nullifies the
Furnace warranty.
Dometic Corporation reserves the right to modify appearances and specifications without notice.
IMPORTANT SAFETY INSTRUCTIONS AND DOCUMENT SYMBOLS
This manual has safety information and instructions to help you eliminate or reduce the risk of accidents and injuries.
A. 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.
B. Understand Signal Words
A signal word will identify safety messages and property damage messages, and will indicate the degree or level of hazard
seriousness.
indicates a hazardous situation that, if NOT avoided, could result in death or serious injury.
indicates a hazardous situation that, if NOT avoided, could result in minor or moderate injury.
is used to address practices NOT related to physical injury.
Indicates additional information that is not related to physical injury.
C. Supplemental Directives
Read and follow all safety information and instructions to avoid possible injury or death.
Read and understand these instructions before installation of this product.
Incorrect installation of this product can lead to serious injury or death.
The installation MUST comply with all applicable local or national codes, including the latest edition of the following standards:
U.S.A.
• ANSI/NFPA70, National Electrical Code (NEC)
• ANSI/RVIA LV, Low Voltage Systems in Conversion and
Recreational Vehicles
• ANSI/NFPA 1192, Recreational Vehicles Code
• ANSI Z223.1, NFPA 54 National Fuel Gas Code
• ANSI 1195, Park Trailers
• ANSI Z21.47-2016
• ANSI Z21.86-2016
CANADA
• CSA C22.1, Parts l & ll, Canadian Electrical Code
• CSA Z240 RV Series, Recreational Vehicles
• CAN/CGA B149, Natural Gas and Propane Installation
Code
• CSA 2.3-2016
• CSA 2.32-2016
FOR DFLA35 and DFLA40 Models Only
This Furnace is manufactured for use with Liquid Propane (LP) gas. A kit has been provided with the Furnace, so that a qualified
service technician can convert the Furnace for use with natural gas. Any conversion to natural gas must conform with local
codes, or in the absence of local codes, with the National Fuel Gas Code, ANSI Z223.1/NFPA 54 Natural Gas and Propane
Installation Code, in addition to the Standard for Recreational Vehicles NFPA1192 and CSA Z240 RV Recreational Vehicle Code.
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