Airstream 2023 INTERSTATE 24X, Owner'S Manual

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Interior
5-24
2023 Interstate 24X
Hydronic Heating and Hot Water System
Your Touring Coach has a diesel/electric hydronic
heating and on-demand hot water system that runs
on diesel fuel and an electric element, eliminating the
need for LP gas� The system gets its fuel from the
vehicle’s diesel fuel tank�
NOTE
The system will automatically shut OFF if the
Coach’s fuel tank reaches the one-quarter level,
leaving enough fuel to travel to a refilling station.
The heater portion of the system operates by
circulating a heat transfer fluid (RV boiler antifreeze)
through quiet air handlers that provide soft, radiant
heat to warm the Coach’s interior� When the Coach is
cold, the fans run on high until the interior temperature
reaches its target� The fans then automatically slow
down to maintain comfort levels�
The water heater portion of the system circulates
the same fluid through an instantaneous water heat
exchanger, which produces hot water for showers and
kitchen use�
The Timberline touchscreen display (shown above)
controls the system� When making selections, the
display’s various touch controls change from blue OFF
to orange ON �
The controls allow you to adjust the heat and whether
you want to utilize diesel fuel and/or electric:
• The
HEATER icon controls the diesel fuel burner
• The
ELEMENT
icon controls the 1500W electric
element that only functions when connected to
shoreline power
See your Owner’s Packet for a copy of the Timberline
User Manual, where you will find detailed operation,
maintenance, and troubleshooting instructions� Or, visit
Timberline’s website: https://timberlineheat�com
Heater and Water Heater Operation - Shore Power
When both the HEATER and ELEMENT icons are
selected, the system automatically prioritizes using
heat from the electric element� If there is greater
heating demand on the system, the diesel burner
will automatically engage and heat the antifreeze for
circulation�
The diesel HEATER should only be operated when the
vehicle is outside�
1� Select ELEMENT to activate the electric heating
element (conserves fuel while connected to
shoreline); and/or:
2� Select HEATER (prioritizes electric element and
allows the system to engage the diesel powered
heater based on demand)�
3� Select ZONE 1 (bed area) or ZONE 2 (all other
areas) using the tabs at the bottom of the screen�
4� Select the ON/OFF icon to turn the heat on or off
for the selected zone�
5� Use the sliders to adjust the system to your desired
temperature for each zone� The top slider adjusts
daytime temperatures� The lower slider sets
nighttime temperatures� Times for day and night
can be adjusted in the settings menu�
Water Heater Only Operation - Shore Power
1� Select ELEMENT to activate the electric heating
element (conserves fuel while connected to
shoreline); and/or:
2� Select HEATER (prioritizes electric element and
allows the system to engage the diesel powered
heater based on demand)�
Heater and Water Heater Operation - Boondocking
The diesel HEATER should only be operated when the
vehicle is outside�
1� Select HEATER�
2� Select ZONE 1 (bed area) or ZONE 2 (all other
areas) using the tabs at the bottom of the screen�
3� Select the ON/OFF icon to turn the heat on or off
for the selected zone�
4� Use the sliders to adjust the system to your desired
temperature for each zone� The top slider adjusts
daytime temperatures� The lower slider sets
nighttime temperatures� Times for day and night
can be adjusted in the settings menu�