Catalogue

UH-PRC002-EN 61
Mechanical Specifications
Thermostats
Low voltage room thermostat, single-stage.
Low voltage room thermostat, single-stage with summer/winter switch.
Low voltage duct thermostat, single-stage.
Universal tamper-proof guard for all room thermostats.
Low voltage room thermostat, two-stage.
Low voltage duct thermostat, two-stage.
Room thermostat, electronic modulating control.
Duct thermostat, electronic modulating control.
Override room thermostat, for use with duct thermostat and electronic modulating control.
Discharge Nozzles
Y Splitter
30° Downward
60° Downward
90° Downward
Separated Combustion Centrifugal (model GK) and Propeller Fan Gas Unit Heaters
(model GA)
General
Units are completely factory assembled, piped, wired, and test fired. All units are AGA Certified,
80 percent efficient and conform with the latest ANSI Standards for safe and efficient performance.
Units are provided with two-point suspension hangers on propeller fan unit heaters and with four-
point suspension hangers on centrifugal fan unit heaters. Units are available for operation on either
natural or LP (propane) gas. Standard terms and conditions apply.
Casing
Casings are die-formed, 20-gauge galvanized steel and finished in baked enamel. The bottom panel
is easily removed to provide service access to the burners, pilot and orifice. All units provided with
independently adjustable horizontal louvers with stops to prevent total closure.
Heat Exchanger
Standard heat exchanger construction consists of seam welded 20-gauge aluminized steel tubes
and 18-gauge aluminized steel headers.
Burners
Burners are die-formed, corrosion resistant aluminized steel, with stainless steel port protectors.
Port protectors prevent scale or foreign matter from obstructing the burner ports. Burners
individually removable for ease of inspection and servicing. Each burner is provided with an
individually adjustable, manually rotated air shutter adjustment.
Fans
Propeller fan blades are constructed of aluminum with an aerodynamic contour.
All fans are dynamically balanced for quiet, efficient operation and supplied with a protective type
fan guard. Rubber-in-shear isolators provide isolation between the fan/motor combination and the
unit heater casing.
Centrifugal fan is belt driven with adjustable pitch motor sheave. Motor and fan are dynamically
balanced for quiet operation.