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7. Do maintain a rear clearance of 18" 18. Do not attach duck work, air filters or
(45.7cm) or 6" (15.2cm) beyond motor at plastic vent pipe to this unit heater.
rear of uni, whichever is greater, and
access side provide ample air for 19. Do not install below 7 ft.
(
2.1m
)
measured
combustion and fan operation. from bottom of heater to the floor in
commercial applications and 5 ft. (1.5m)
8. Do maintain minimum clearances from for residential applications.
combustible material based on a 160˚F
(
70˚C
)
surface temperature. 20. Do not use this appliance if it has
been under water. Immediately call a
9. Do consult pipin
g
, electrical and ventin
g
qualified service technician to inspect
sections in this manual before finalizing the appliance and replace any damage
installation. equipment that has been under water.
10
.
Do keep all literature with this unit
heater. LOCATION
11
.
Do not install in potentiall
y
explosive or In locatin
g
units, consideration should be
flammable atmosphere laden with rain given to the space heating requirements,
dust, sawdust, or other air-borne availability of gas and proximity to vent
materials. location. The direction of the air stream
should be pointed toward the area of
12
.
Do not install heaters where there is
g
reatest heat loss. Multiple units should be
high humidity or salt water atmospheres. located so that the air streams set up a
This will cause corrosion resulting in circulatory movement within the area being
reduction of the normal life of heater. heated. Adjustable louvers are factory
installed on front of the heater.
13
.
Do not locate in areas where there is a
high concentration of chlorinated, halo- Do not install unit heater(s) in a confined
generated or acid vapors in the atmos- space with out providing wall openings to and
phere, this will reduce heat exchangers from this space. Mounting height at which
life. heaters are to be installed is critical. The
critical height is from floor to the bottom of
14
.
Do not install in ti
g
htl
y
sealed rooms or the unit
(
s
)
where heater will not deliver the
small compartments (confined spaces) required amount of heated air to the floor.
without provisions for adequate com-
bustion air and venting. Unit heaters installed in Aircraft Hangers, Parking
Structures and Repair Garages as applicable, must
15
.
Do not install heater outdoors. be installed in accordance with the Standard on
Aircraft Hangers, ANS/NFPA 409, the Standard for
16
.
Do not install heater closer to an
y
Parking Structures, ANSI/NFPA 88A and the
combustible materials than what the Standard for Repair Garages, ANSI/NFPA 88B, and
heater was tested and listed. with the CAN1-B149 codes - latest editions.
17
.
Do not block air intake and dischar
g
e of WARNING: Gas-fired appliances are not designed
the unit heater. for use in hazardous atmospheres containing
chlorinated or halogenated hydrocarbons.
3