Aqua-Hot™ Motor Coach Heating System Owner's Manual 05/02
Aqua-Hot™ Motor Coach Heating System Owner's Manual 05/02
Hot
Cold
Fill / Radiator
Cap
Expansion
Tank
Zone C
Return
Zone B
Return
Zone A
Return
Zone A
Supply
Zone C
Supply
Zone B
Supply
Zone
Circulation
Pump
Engine Preheat
Circulation
Pump
Diesel-Burner
Head
Engine Coolant
Supply
Hot Water
Outlet
(Domestic Water)
Cold Water
Inlet
(Domestic Water)
Engine
Coolant
Return
Diesel Fuel
Supply
Diesel Fuel
Return
Diesel-Burner
Control
Unit
Mixer
Valve
Electric Heating
Element Access
Panel
Zone Relay #C
Zone Relay #A
Zone Relay #B
Fuse Block
VAC Access
Panel
VAC Service
Input
Thermostat
Access Panel
I.D Plates
Pressure-Relief
Valve
Terminal
Board
SECTION 1: OVERVIEW
Aqua-Hot
Overview,
continued
Page 1-2
Figure 1
2.1 Activating The Aqua-Hot Heating System
Diesel-Burner
Turn the Diesel-Burner Control Switch ON. This procedure will activate
the Diesel-Burner and the indicator light located on or near the Switch.
Please contact your specific motorhome manufacturer for the exact
Diesel-Burner Control Switch location. Allow 10-20 minutes for the Sys-
tem to reach operating temperature. Please note that the Diesel-Burner is
the main heat source for heating both the interior and the domestic hot
water. So, be sure to leave this switch ON during normal heating require-
ments.
Electric Heating Element
The VAC Electric Heating Element is wired directly into your motorhomes
120 VAC electrical system and is operational whenever VAC power is
available. Allow 1-2 hours for the System to reach operating temperature.
Please note that the Electric Heating Element will adaquately provide all
your heating needs only for low heating demand situations, such as when
moderate ambient temperatures exist and/or when there is a low demand
for domestic hot water.
Page 2-1
SECTION 2: OPERATING INSTRUCTIONS
Heat
Source
Please read the complete Owner’s Manual prior to operating your Aqua-
Hot Heating System. Also, be sure to fill out and mail in your Owner’s
Information Card located at the front of this manual.
