8
PRE-INSTALLATION
Inspect the equipment making sure that all parts and accessories are accounted for. Check
equipment against order and packing list.
If the equipment has been sitting in storage for some time, inspect for moisture and/or dust
accumulation. Both can cause damage to electrical components as well as bearings and insulation.
Verify that electric service matches equipment ratings. Verify that heating or cooling
medium capacities match associated equipment (boiler, chiller, condensing unit, ...)
INSTALLATION CODES
Care taken during the installation and start-up is vital to the longevity and reliability of the
equipment. Confirm that gas and electric utilities match the rating on the equipment name plate.
This heater shall be installed in accordance with local codes or, in the absence of
local code, according to National Fuel Gas Code, ANSI Z223.1/ NFPA 54, or the
CAN/ CSA B149.1 Natural Gas and Propane Installation Code.
If the heater is to be installed in an aircraft hangar, refer to ANSI/NFPA 409.
If the heater is to be installed in a parking structure, refer to ANSI/NFPA 88A.
If the heater is to be installed in a service garage, refer to ANSI/NFPA 88B.
For installations in Canada, refer to CAN/CSA B149.1 National Gas and Propane
Installation Codes.
Gas piping and exhaust venting must be sized and installed to comply with
applicable codes and standards.
If in doubt regarding the application of the heater, contact a sales representative
or the factory.
GAS PIPING
Supply gas pressure must be 7” – 14” w.c.
HEAT EXCHANGER VENTING
The National Fuel Gas Code ANSI Z223.1/NFPA 54 specifies a 4 foot horizontal vent terminal
clearance from gas and electrical meters, regulators and relief openings.
Exhaust vent within air
handler vestibule needs to be insulated to avoid excessive temperatures within the control
cabinet that can cause component failure
. Refer to Heatco’s installation manual for more
information.
POSITIONING THE HEATER
Locate the heater exactly level, making certain minimum clearance required by local codes is
maintained between the heater and any combustible materials. See name plate on equipment for
minimum recommended clearances.
NOTE: If the heater is installed in a garage, it shall be installed with a clearance
above the floor of 18 inches.
When the air handler equipment is located on a roof or at ground level on a concrete pad, the
equipment intake needs to be a minimum of 24” above the roof and/ or ground to prevent the intake
of snow or splashed rain. The equipment should be located in such a way to prevent prevailing
winds from blowing directly into the equipment intake. If the application is critical, provisions must be
made to protect the equipment inlet from the driving winds.
