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D D 2 2 / / D D 4 4 H H e e a a t t e e r r I I n n s s t t a a l l l l a a t t i i o o n n ( ( H H e e a a t t O O p p t t i i o o n n ) )
Exhaust and Combustion Air Intake Installation
I I N N S S T T A A L L L L A A T T I I O O N N P P R R O O C C E E D D U U R R E E S S
1. Route e e x x h h a a u u s s t t h h o o s s e e to an open area to rear or side of the truck or positioned slightly downwards to help drain off
condensation and secure with clamps.
a. Drill a 1/8" hole in exhaust hose if necessary to allow for water drainage.
b. Exhaust hose can be shortened to a minimum of 8" if required.
2. Attach m m e e t t a a l l end cap to exhaust hose
3. Position a a i i r r i i n n t t a a k k e e t t u u b b e e facing towards the rear of the tractor where it can pick up clean, fresh, moisture free air.
4. From underneath the sleeper:
a. Apply silicone sealant around O O N N L L Y Y the four heater mounting screws.
b. D D O O N N O O T T apply any sealant around the access hole!
Figure 14. Exhaust and combustion air intake installation details shown.
Return and Discharge Ducts and Vents Installation
The heater is equipped with a R R e e t t u u r r n n I I n n l l e e t t and D D i i s s c c h h a a r r g g e e O O u u t t l l e e t t for attaching the flexible heater duct hoses.
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R R e e t t u u r r n n I I n n l l e e t t must be provided to return air to the heater for best heating efficiency. It is typically mounted at the
base of the bunk directly o o p p p p o o s s i i t t e e the discharge outlet vent.
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D D i i s s c c h h a a r r g g e e O O u u t t l l e e t t should be located at floor level to provide maximum heating comfort in the sleeper. It is typically
installed at the base of the bunk on one end.
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All heater ducts should be installed and routed with smooth bends and no kinks to provide maximum airflow.
I I N N S S T T A A L L L L A A T T I I O O N N P P R R O O C C E E D D U U R R E E S S
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TK 56459-19-IM-EN
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