Form 44201440
31
Oct 2018
B.
LINE VOLTAGE (120V) ON / OFF SWITCH CONNECTION - MULTIPLE HEATERS
VENTILATION
Where unvented infrared heaters are used, natural or mechanical means shall be provided to supply and exhaust at
least 4 cfm per 1000 Btu/hr input of installed heaters.
Exhaust openings for removing flue products shall be above the level of the heaters.
This heater requires ventilation in the building to dilute the product of combustion and provide fresh air for efficient
combustion. Power ventilation is recommended, and the minimum vent flow required is as follows:
SGL35-N7and L7 = 140 cfm
The General Ventilation Rules outlined in ASHRAE GUIDE AND DATA BOOK should be observed when locating vents.
Exhaust vents must be located at the highest point above and in the vicinity of the heaters and the inlet vents must
be located below the level of the heaters. Inlet openings in the building should be well distributed high in the sidewalls
and should direct incoming air upward to dilute products of combustion while preventing drafts at lower levels. Inlets
are typically 1 to 3 sq. ft. Local codes may require that mechanical exhaust systems be interlocked with thermostats
to function simultaneously.
LIGHTING AND SHUTDOWN INSTRUCTIONS
Summary of Contents for SGL35-L7
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