Airxcel Aqua-Hot 100 Series, Руководство по обслуживанию

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Introduction Introduction
©Aqua-Hot®
125-DN1 Service Manual REV 220421
©Aqua-Hot®
125-DN1 Service Manual REV 220421
p. 5 p. 4
Read all instructions before servicing the Aqua-Hot unit. Aqua-
Hot Heating Systems is not liable for damage resulting from
failing to follow instructions contained in this manual, and any
other Aqua-Hot documentation relevant to this unit.
• Read this manual before servicing the Aqua-Hot System
to reduce the risk of injury to persons or damage to the
equipment.
• The product identity label contains specifications of the
unit, to what standards it has been tested, and important
safety notices.
• Disconnect electric wiring to the Aqua-Hot System before
welding or plasma cutting the coach to avoid damage to
equipment.
• The Aqua-Hot tank and heating loop operate at 0 PSI (zero
pressure system). Air pressure to the tank must not exceed
18 PSI. Exceeding this rating will cause internal damage to
the Aqua-Hot.
• Use caution when working on or near any gas systems.
• DO NOT connect the 12-volt DC power to the Aqua-Hot if the
vehicle requires welding.
• At maximum operating temperature, the coolant and vapor
will be very hot and scalding that may result in serious
burns or injury. Be aware of hot surfaces.
• Use special caution when children are present. Children
must not be allowed to play with the heater or perform
cleaning and/or maintenance.
• Installation and repairs may only be carried out by an
authorized, factory-trained Aqua-Hot technician. The
heating system must be serviced in accordance with local
codes, or, in the absence of local codes, follow NFPA 1192.
National safety regulations must be adhered to.
If the information in this manual is not followed
exactly, a fire may result, causing property damage,
personal injury or death.
Introduction to this Document
Welcome to the Aqua-Hot 125DN Service Manual. This
manual will serve as a guide for diagnosing and repairing the
Aqua-Hot, how to perform standard maintenance, and guide
you through troubleshooting procedures to repair the Aqua-Hot.
This service manual is designed to aid trained and qualified
technicians to properly service and troubleshoot the Aqua-Hot
125DN.
Each section in this manual is dedicated to the diagnosis
of specific components within the Aqua-Hot which may be
inhibiting the operation of the heater.
Troubleshooting and diagnosis of the Aqua-Hot is most
efficiently and effectively accomplished with the Aqua-Hot LCD
display, which will relay in plain-language, diagnosis of many
Aqua-Hot related issues.
If additional assistance is needed in diagnosing and
repairing the Aqua-Hot, please contact our Technical Service
Department at 574-AIR-XCEL (574-247-9235) from 7:00am to
4:00pm MST Monday through Friday.
As with any appliance, allow the Aqua-Hot to
completely shut down BEFORE disengaging the
coach 12V power disconnect.
Figure 5
Aqua-Hot 5in. LCD
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.
High Altitude Option:
The Aqua-Hot 125D comes equipped with a High Altitude
mode that allows the external diesel burner to operate properly
at high altitudes. It is recommended any time the coach is at
an altitude higher than 5,000 feet, to activate the High Altitude
button on the LCD screen. This modifies the fuel pump rate to
decrease the flow of diesel fuel. This allows for less emissions,
less carbon build-up, and proper diesel burner operation.
Figure 2
Figure 3
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 in
recreational vehicles only.
• Please read this manual and follow instructions to avoid
injuries during service and/or operation.
The diesel burner is the Aqua-Hot’s primary and most powerful
heat source, and provides all of the heating and hot water
needs when cold temperatures exist, and/or when there is
a high demand for hot water. It can be activated by turning
the burner on by tapping BURNER to ON on the LCD screen
shown below. The burner has 2 modes: ON and OFF. While
ON, the burner will maintain a tank temperature of 180°F and
minimum temperature of 160°F as needed, using temperature
readings from the coach interior thermistors. In OFF mode, the
burner is off and will not provide any heat to the Aqua-Hot tank.
The electric element has the same functionality as the diesel
burner. The burner and electric may be ON simultaneously.
Figure 4