Proheat X45–School Bus - Manual (Page 27)

Figure 3-11 Exhaust Pipe
PROHEAT INSTALLATION & SERVICE 3-6
EXHAUST PIPE CONNECTION
1. Push the exhaust pipe through the hole in the enclosure and onto the
exhaust outlet port of the heater. Ensure that the pipe is pushed onto
the spigot at least 1 1 ⁄
2
" (38 mm).
2. Route the exhaust pipe such that:
• exhaust gasses do not enter the passenger compartment.
• exhaust gasses do not enter the heater's combustion air inlet
• exhaust system does not rest against or be directed toward any parts
of the vehicle that may be damaged by heat (i.e. brake lines, seals, wires,
rubber hoses or bumpers). The exhaust pipe may be have to be insulated
if it's within 6" of combustible materials or composite body parts
• the exhaust outlet does not face the same direction as vehicle travel
• debris and snow will not plug the outlet
• the exhaust pipe is protected from curb damage
• the exhaust system should have a downwards slope for condensation
to drain. If needed a 3/8" hole should be drilled into the exhaust pipe
at the lowest point so that the condensation will drain.
3. Disassemble the exhaust pipe clamp and apply anti-seize compound to
the threads.
4. Assemble the exhaust clamp over the exhaust pipe (clamp goes inside
the enclosure) and tighten the nuts.
NOTE: 1 1 ⁄
2
" exhaust pipe should not exceed 5 ft and have no more than
180 degrees of bends. The bends must be formed for best results.
Do not use 90 degree welded pipe to turn corners.
WARNING
Exhaust gases must not enter
the vehicle interior. Direct
exhaust pipe away from vehicle.
3.3
NOTICE
If additional information is required,
please contact your PROHEAT Dealer
regarding your specific application.
Alternatively, please contact PROHEAT
Product Support at www.proheat.com.
NOTICE
Use of muffler or other restrictions in the
exhaust system is not recommended.
EXHAUST CLAMP
U BOLT (APPLY
ANTI-SEIZE
COMPOUND
TO THREADS)
ENSURE THERE ARE
NO AIR LEAKS AROUND
THE CONNECTION
DIRECTION
OF VEHICLE
TRAVEL
Use formed elbows.
Do not use welded
90˚ elbows.