Fulton Hopkins (HPN) Horizontal Coil Thermal Fluid (hot oil) Heater - Manual (Page 9)

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SECTION 2
HPN-IOM-2014-0416
INSTALLATION
2-3
!
WARNING
All information in this manual is for
reference and guidance purposes,
and does not substitute for required
professional training, conduct,
and strict adherence to applicable
jurisdictional/professional codes and
regulations.
Failure to provide required and
safe access to the equipment
could impede commissioning and
maintenance. Service technicians
are instructed not to commence
commissioning if hazardous
conditions exist.
Failure to provide proper minimum
clearances between equipment and
combustible materials may result in
fi re.
Clearances & Serviceability
Adhere to the following for equipment clearances and serviceability:
1. Ensure appropriate front, back, sides and top clearances are met. This
will allow access around the equipment to facilitate maintenance and a
safe work environment, and ensure technicians will commission the unit.
Technicians will not commence commissioning if hazardous conditions
exist.
2. Place heater with clearances to unprotected combustible materials,
including plaster or combustible supports, not less than the following:
 Heater Front 36” (1m) or more, depending on burner requirements
 Heater Sides 18” (0.5 m), 36” (1 m) on side where panel located
 Heater Rear: enough room for coil to be pulled
 Flue Pipe 18” (0.5 m)
3. Pipes must not be run within 10” (254 mm) of any control cabinets or
combustible material.
4. Verify that all clearances are acceptable with the local ordinances.
Environment, Ventilation and Combustion Air
Requirements
Ventilation must be suffi cient to maintain a building temperature of 120°F (49°C)
or less. Consistent proper ventilation of the equipment room is essential for good
combustion.
NOTE:

When calculating ventilation requirements, heat losses from the Fulton
equipment (and other equipment) should be considered.
Adhere to the following to meet ventilation and combustion air requirements, if
installed indoors:
1. Install two fresh air openings, one at a low level, 24” (610 mm) from the
fl oor, and one at a higher level on the equipment room wall. This will
provide a fl ow of air to exhaust the hot air from the equipment room.
2. Ensure the burner has an adequate supply of air. Based on NBIC
recommendations, unobstructed air openings must be sized on the basis
of 0.5 square inch of free area per 1,000 BTU/hr input maximum fuel
input of the combined burners in the equipment room or as specifi ed by
applicable codes.
3. Ensure the equipment room air supply openings are kept clear at all times.
4. See Table 3 for minimum make-up air required and the recommended area
of each opening for each model.