System Features
Introduction
©Aqua-Hot®
125DN Installation Manual
REV 220419
©Aqua-Hot®
125DN Installation Manual
REV 220419
p. 7
p. 6
System Overview
The Aqua-Hot 125D is a Hydronic Heating System that can
provide heat and hot water on demand using a built-in electric
heating element and an external diesel burner.
The Aqua-Hot Heating is a 2-in-1 System
1. Interior heating system: provides quiet, comfortable interior
heat and even temperatures.
2.
Tank-less hot water system: provides a flow of comfortable
hot water.
The Aqua-Hot heating system heats an ethylene
glycol-based
antifreeze and distilled water solution that is stored in the Aqua-
Hot’s boiler tank. This fluid solution must be up to operating
temperature before the Aqua-Hot will provide interior heat or hot
water. The tank-less hot water system produces approximately
0.8 GPM of hot water. This system is also hot water priority, so it
will shut off the heat any time hot water is called for. Read more
about it to the right.
To get the Aqua-Hot to temperature, turn the electric heating
element and/or the external diesel burner to the “ON” position
on the Aqua-Hot LCD screen (shown below), or on the RV
control panel. It may take up to 20 minutes to get to operating
temperature before heat or hot water are available.
For continuous hot water or heat in colder conditions, it is
recommended to utilize the external diesel burner. The electric
heating element will provide heat only in mild conditions and
provide light duty hot water needs.
Should additional assistance be needed, please contact the
Technical Support at 574-AIR-XCEL (574-247-9235), Monday
through Friday, between 7:00am and 4:00pm MST.
Important Notes:
•
A qualified installer or service technician must perform
equipment installation or service. Contact Aqua-Hot for
Factory Authorized Service Centers or Certified Technicians
located near you at www.aquahot.com/service-help, or call
us at 574-AIR-XCEL (574-247-9235).
• Warranty work must be performed by an Aqua-Hot
Authorized Service Center.
•
Your on-product identity label contains the specifications of
your unit. Factory settings may be adjusted by the vehicle
manufacturer, confirm final setting with your dealer.
•
This heating system has been certified for installation only
in recreational vehicles, not certified for use in boats.
• The Aqua-Hot heating system operates independently of
the vehicle engine and is connected directly to the electrical
system of the vehicle. The diesel burner is only connected
directly to the fuel system of the vehicle.
• Please read this manual and follow instructions to avoid
injuries during installation and/or operation.
Hot Water Priority System
The Aqua-Hot 125D is a Hot Water Priority heating system.
Meaning that the 125D cannot heat the interior of the RV and
produce hot water simultaneously. When hot water is being
used, the interior heating system will shut off temporarily, until
hot water is no longer being used.
Heat Priority Option:
The Aqua-Hot comes equipped with the three-way valve
(sometimes known as the summer/winter valve). This controls
the flow of the antifreeze and water heating solution within
the Aqua-Hot to deliver either hot water or interior as priority.
Tapping on this element will change the valve’s orientation.
When this element displays “INT. HEAT”, this valve is oriented
to provide interior heat by circulating the heating solution
throughout the interior heating zone. When the element says
“HOT WATER”, the valve is oriented so that the heating solution
is routed to prioritize hot water.
System Specifications
Electric Element
Power Consumption ......................................1500 W (maximum)
Voltage ..............................................................................120V AC
DC Power
Consumption ..................................................... 84 W (maximum)
Zone Heat Circulation
Pumps ...........................................................................................1
Power Consumption (max) ..................................................... 21W
Voltage ............................................................................... 12V DC
Heating Zones
Maximum ......................................................................................3
Domestic Water Heating
Maximum ......................................................................... 0.8
GPM
Physical Specifications
Dimensions......................................17.66”L x 7.50”W x 11.50”H
Dry Weight ............................................................................45lbs.
Wet Weight ............................................................................59lbs.
All vehicle installations must comply with the requirements
listed in the Recreational Vehicle Industry Association’s
(RVIA) ANSI/NFPA 1192 Handbook for Recreational Vehicle
Standards.
Figure 1
NOTE:
This product label is attached to the side of the
Aqua-Hot, and provides a ready reference to specifications,
test standards, and important safety notices.
