Schwank STW-JZ1 - Manual (Page 31)

31
STW-JZ / IW I&O Manual
IM101229
RL: 12A- BA
RD: DEC 2010
The air intake will not be located less than:
 Three feet above grade
 Twelve inches from flue vent terminal of any heater with input up to 100,000 Btu/hr.
 Three feet from flue vent terminal of any heater over 100,000 Btu/hr.
Do not install filters on the combustion air intake.
Ensure adequate clearance around the air intake to allow sufficient combustion air sup-
ply to the heater.
This heater has an optional fresh air intake duct hood for wall (JS-0532-VC) or roof cap (JS-
0530-XX) to bring combustion air to the heater from outside. Ensure adequate clearance
around the air intake to allow sufficient combustion air supply to the heater. If drawing fresh air
from outside, it is recommended that any single wall pipe containing cold air be insulated to
prevent or reduce condensation on the pipe.
Do not use flexible dryer hose or any ‘soft wall’ tubing for air inlet duct, the cor-
rugated sides of this tubing restrict air flow. A good quality industry approved insu-
lated flex is allowed.
CAUTION: In locations where chlorinated Hydrocarbons are in use, such as Tri-
chloroethylene or Chloroethylene Nu it is essential that combustion air be
brought in from a non-contaminated area. Burning the fumes from these gases
will create Hydrochloric acid fumes, which are detrimental to humans, equipment
and buildings. Typical sources of other contaminants are paint removers, paints,
refrigerants, solvents, adhesives, degreasers, lubricants, pesticides, etc.
The heater manufacturer cannot anticipate all types and chemical composition of
possible contaminants at project sites. Confer with project site safety, health and
engineering staff and/or local authorities having jurisdiction such as the Fire Mar-
shall and Department of Labor for possible contaminants and any conflict with the
installation of hot surface heating equipment.