Airxcel Aqua-Hot 600 Series, Installation Manual

Page: 11 / 63

Fluid Expansion Bottle
©Aqua-Hot® 600D Installation Manual p. 10
Exhaust System Requirements
• The exhaust must be able to freely exit away from the
vehicle without any obstructions.
• Angle the exhaust pipe towards the rear of the vehicle,
so that exhaust fumes will naturally move away while the
vehicle is in motion. See Figure 18.
• Use standard 2” automotive-type exhaust piping and avoid
bends, if possible. A minimum 1.75” ID automotive-type
exhaust pipe may be used. See Figure 16 & Figure 20.
• A maximum of three 90° exhaust bends are allowed.
Reference Figure 14.
• Do not use galvanized pipe fi ttings (only black-iron pipe and
fi ttings should be used). Reference Figure 17.
• The total length of exhaust pipe should not exceed 27.5
feet.
• The Aqua-Hot is supplied with a 3 inch and 4 inch black pipe
nipple (1.5 inch diameter) along with a 1.5 inch exhaust
elbow. Reference Figure 18. These three exhaust system
components MUST BE utilized with all product installations.
Be sure to reference Figure 19 and 20 to determine which
exhaust nipple should be connected directly to the Aqua-
Hot’s exhaust port (the 3 inch of the 4 inch black pipe
nipple).
Exhaust System
The Aqua-Hot’s exhaust is HOT and must be kept away
from any heat sensitive material(s). Do NOT direct
exhaust downward as a fi re may result when parked in
dry, grassy areas.
All Aqua-Hot exhaust system installations MUST utilize the
two black pipe nipples and black pipe elbow, which are
provided with the heating system in the confi guration to be
suited for the particular RV application. Failure to conform
could create a hazardous situation and WILL void the Aqua-
Hot’s ETL Product Listing.
NOTE: Refer to “Internal Combustion Engine Exhausts and
Vehicle Wall Openings” in RVIA’s ANSI/NFPA 1192 Handbook
for the Recreational Vehicle Standards, as well as the
National Fire Protection Associations’ (NFPA) 1192 Standard
on Recreational Vehicles for additional information.
Installation Procedure:
1. Run the exhaust pipe to the driver’s side or to the back
of the vehicle and ensure that the exhaust fumes cannot
enter into the passenger compartment.
2. Be sure to secure the end of the exhaust pipe to the vehicle
with the proper exhaust hanger/support hardware.
NOTE: Should this particular application require more
than 27.5 feet of exhaust pipe, please contact Aqua-Hot at
574-AIR-XCEL (574-247-9235) for assistance.
Figure 16
1.5 inch ID Black Pipe Exhaust Fitting
1.75” ID Automotive-Type Exhaust Pipe