Discharge damper, two-position motor and interlock:

motor-operated parallel blade damper that prevents warm air from escaping the building through the unit. The motor-damper end switch energizes the starter circuit when the damper is in the full-open position, and returns to a closed position during shutdown.
 

Discharge louvers with air diffuser:

discharges air in four directions with vertical and horizontal blades, and is field-installed. The blades can be manually adjusted to set direction of airflow.
 

Filter section:

removable, hinged access door, with a 2-inch washable, aluminum-mesh filter, or a 2-inch pleated filter. Also available with 1-inch, 1.5 lb density insulation.
 

Inlet screen:

prevents material from entering unit. A 1-inch mesh screen fastens to unit's fresh-air intake.
 

Inlet damper, two-position motor and interlock:

motor-operated parallel blade damper that prevents outside air from entering the building through the unit. The motor damper end switch energizes the starter circuit when the damper is in the full-open position, and returns to a closed position during shutdown.
 

Return-air filter, 80/20 units:

1-inch or 2-inch deep, aluminum mesh, or 2-inch deep, 30% efficient, pleated type; v-bank, filter section shipped loose for field mounting to the return-air connection.
 

Adjustable drives:

fixed-pitched sheaves are standard on motors 30hp and larger. An adjustable-pitch motor sheave is provided in lieu of the standard fixed-pitch sheave.
 

Casing insulation:

adds 1", 1.5 lb density insulation, that is glued and pinned to inner surface of unit's walls and ceiling, casing liners are standard with this option.
 

Casing liners with insulation:

prevents insulation fibers from being drawn into air stream and discharged into conditioned space, and prevents physical abuse and moisture damage to insulation. Made of galvanized steel.
 

Extended grease lines:

lubrication lines from blower bearings to a common point on the unit's exterior. Units with permanently lubricated bearings to be changed to pillow block-type.
 

Painted casings:

one coat of beige air-dried enamel over a vinyl wash primer.
 

Pillow-block bearings, 100,000 hr:

standard on all units ordered with an industrial blower, and are rated at 100,000 to 200,000 hours; available on smaller units with standard, permanently lubricated ball bearings.
 

Spring-isolated blower and motor:

mounted on a 1" deflection spring isolated base. A flexible duct connects the fan outlet to the unit's casing.
 

Two-speed damper package:

provides burner-profile dampers that automatically maintain the correct burner velocity. Also dual airflow switches and rate-limiting control are included to prevent over-firing on low speed.
 

The FAV-M Model has been certified by ITS. This certification mark indicates that the product has been tested to and has met the minimum requirements of a widely recognized (consensus) U.S. products safety standard, that the manufacturing site has been audited, and that the applicant has agreed to a program of periodic factory follow-up inspections to verify continued performance.

Model FAV-M is ETL Listed under file number 3035352-002 and complies with ANSI Z83.18-2001 Standards.