ITR POLAR HD, Installation And Operating Manual

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Section 3, Installing the Exhaust System
3-4 The POLAR™ HD Heating Module
band clamps are recommended for joining flex and solid
tubing as they apply firm, even pressure.
• In a vehicle, install an exhaust collar on the exhaust pipe to
isolate the pipe from the vehicle frame. This reduces
vibration and noise and protects the vehicle from the effects
of high exhaust temperature, see Figure 3-1: Installing the
Exhaust system (Bottom Exhaust).
What NOT to Do
Don’t mount the exhaust pipe inside the heater compartment.
Don’t use more than 8’ of exhaust pipe if 180° of total bends are
present.
Don’t use any mufflers not supplied or approved by ITR.
Don’t over-tighten exhaust clamps or you may crush the POLAR™
HD Heating Module’s exhaust outlet pipe.
3.3 Procedure
Figure 3-1: Installing the Exhaust System (Bottom Exhaust) shows
a standard setup for the down exhaust. To install the exhaust
system:
1 Leave suitable air spacing to protect combustible
materials; use an exhaust collar and metal shields where
required.
2 Find an appropriate location for the exhaust hole of the
heater. (See Figure 3-2)
3 Securely seal the exhaust piping to the POLAR™ HD
Heating Module fitting using an approved exhaust clamp.
4 Connect the exhaust piping in series with the muffler,
using heavy-duty exhaust clamps. If you use vibration
isolation mounts they must be high temperature.