Dometic 641815 - Table of Contents; Introduction; Document Symbols

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TABLE OF CONTENTS
INTRODUCTION ..................................................................................................................................................................2
DOCUMENT SYMBOLS.......................................................................................................................................................2
IMPORTANT SAFETY INSTRUCTIONS ............................................................................................................................3
A. Recognize Safety Information ...................................................................................................................................3
B. Understand Signal Words ..........................................................................................................................................3
C. Supplemental Directives ............................................................................................................................................ 3
D. General Safety Messages .........................................................................................................................................3
SPECIFICATIONS ................................................................................................................................................................4
A. Table - Unit Data ........................................................................................................................................................4
B. Roof Requirements ....................................................................................................................................................4
C. Table - Air Distribution Duct Sizing & Design ............................................................................................................. 5
INSTALLATION INSTRUCTIONS .......................................................................................................................................5
A. Choosing Proper Location For Unit ...........................................................................................................................5
B. Roof Preparation .......................................................................................................................................................6
C. Air Distribution Duct Sizing & Design ........................................................................................................................7
D. Wiring Requirements .................................................................................................................................................8
E. Choosing Thermostat Locations ................................................................................................................................ 8
F. Thermostat, Optional Indoor Temperature Sensor & Thermostat Communication Cable Installation. ......................8
G. Placing Unit On Roof ...............................................................................................................................................10
H. Installing Unit ...........................................................................................................................................................10
I. Wiring System .........................................................................................................................................................12
J. System Conguration ..............................................................................................................................................12
K. Installing Return Air Cover .......................................................................................................................................13
L. System Reset & Checkout .......................................................................................................................................14
M. Furnace /Aqua Temperature Di󰀨erential Setting .....................................................................................................14
GENERAL INFORMATION ................................................................................................................................................15
A. Frost Formation On Cooling Coil .............................................................................................................................15
B. Condensation ..........................................................................................................................................................15
C. Air Distribution .........................................................................................................................................................15
WIRING DIAGRAMS ..........................................................................................................................................................16
A. Simple RV Wiring Diagram ...................................................................................................................................... 16
B. Unit Wiring Diagrams ...............................................................................................................................................17
INTRODUCTION
This air conditioner/heat pump (hereinafter referred to as “unit” or “product”) is designed and intended for installation on the
roof of a Recreational Vehicle (hereinafter referred to as RV) during the time it is manufactured.
This unit can be installed by one person with brief help from additional personnel. Use these instructions to ensure a properly
installed, and properly functioning product.
Dometic Corporation reserves the right to modify appearances and specications without notice.
DOCUMENT SYMBOLS
Indicates additional information that is NOT related
to physical injury.
Indicates step-by-step instructions.