General Information; Introduction; Danger, Warning, Caution, And Note Boxes - Aqua-Hot 450-DE Installation Manual

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Service manual (118 pages)

Service manual (113 pages)

Table Of Contents

Table of Contents

Introduction to the Aqua-Hot 450 DE/DM:

This Installation Manual is designed to aid in the instal-

lation process of the Aqua-Hot 450 Hydronic Heating

System by a trained and experienced installer. The

Aqua-Hot features a 12 Volt-DC powered diesel-burner

and a 120 Volt-AC, 1650 Watt electric heating element.

These two heating sources are used in conjunction with

an FDA-approved "GRAS" (Generally Recognized

As Safe) propylene glycol based boiler antifreeze and

water heating solution in order to provide a continuous

supply of domestic hot water, interior/fresh water tank

heating, independent interior zone heating, and engine

preheating, applicable for the 450-DE model only. Be

sure to reference Figures 1 through 6 for a complete

component overview.

Both the Aqua-Hot 450-DE and 450-DM heaters

include a motoraide feature, which uses the circulation

of the motorhome's engine to transport the antifreeze

and water heating solution from the Aqua-Hot's boiler

tank to the motorhome's warm engine and back to the

boiler tank. Through this process, the boiler tank is

kept heated, which reduces the time required to bring

the tank to operating temperature for interior heat and

continuous domestic hot water.

The Aqua-Hot 450-DE also includes an engine

preheat feature, which provides an easy engine startup

whenever cool weather conditions are present. Engine

preheating occurs when the motorhome's cold engine

coolant is circulated through the Aqua-Hot's engine

loop where it gains warmth to transfer to the engine

while circulating.

Please note that all Danger, Warning, Caution, and

Note boxes, appearing as needed throughout this

manual, must be reviewed and adhered to during the in-

stallation procedure in order to avoid potential hazards,

which could result in injury, death, product damage, or

property damage.

Should additional assistance be needed, please

contact the Product Application Department at

1-800-685-4298, Monday through Friday, between the

hours of 8:00 AM and 5:00 PM Mountain Standard

Time.

Danger, Warning, Caution, and Note Boxes:

ndIcates that personal Injury Is lIkely or ImmInent

Indicates that serious damage to the heater will

occur and personal injury is possible as well.

Indicates that damage to the heater is possible.

NOTE: Indicates information that requires special

450-DE/DM Hydronic Heating System Installation Manual