Specifications

SECTION B
SPECIFICATIONS
Model No.
GF500
Type of Appliance Fan type direct vent wall furnace
Input Rating Nat. Gas 38,000 BTU/hour
LP. Gas 34,500 BTU/hour
Output Rating Nat. Gas 30,700 BTU/hour
LP. Gas 27,900 BTU/hour
Efficiency
83%
Electrical Rating 120V, 60Hz, Less than 2 amperes
Power Consumption 80 Watts
Heated Air Delivery
High 388 Cubic feet/minute
Low 300 Cubic feet/minute
Flue Pipe Hole
2.5 inches diameter
Dimensions Height: 26.6 inches (67.56cm)
Width: 28.7 inches (72.90cm)
Depth: 13.8 inches (35.05cm)
Weight
82 pounds
Inlet Gas Supply Pressure Nat. Gas Max.
Min.
10.5 inch W.C. (267 mmH
2
O)
5.1 inch W.C. (130mmH
2
O)
LP. Gas Max. 13.0 inch W.C. (330 mmH
2
O)
Min. 11.0 inch W.C. (279 mmH2O)
Manifold Test Pressure
Nat. Gas 3.4 inch W.C. (85 mmH
2
O)
LP. Gas 3.4 inch W.C. (86 mmH
2
O)
The minimum and maximum inlet gas supply pressure are for the purpose of input adjustment.
The efficiency rating of this appliance is a product of thermal efficiency rating determined under
continuous operating conditions and was determined independently of any installed system.
SPECIAL FEATURES
AUTOMATIC IGNITION
MEMORY BACK UP: Set memory can be kept in case of
power failure for up to 5 minutes.
DUAL BLOWERS: Separate fans for combustion and
room air circulation.
THERMOSTATICALLY CONTROLLED: Adjusts to the
desired room temperature.
BUILT-IN TIMER: Heater will automatically operate as
programmed by the user.
AUTOMATIC RESET AFTER POWER FAILURE: Heater
will automatically resume operation after power is
restored.
INDICATOR LIGHTS: Easy-to-see signals show when
heater is in operation, when timer is activated, and
when the burner is operating in low or high modes.
CLEAN OPERATION: Products of combustion are vented
outside.
CONSUMES NO ROOM AIR: Air for combustion is drawn
from outside.
EASY INSTALLATION: Includes all parts required for
standard installation.
SAFETY FEATURES
SAFE RE-LIGHTING: Heater will not restart until its
combustion chamber has cooled.
ELECTRICAL PROTECTION: Heater automatically shuts
off in the unlikely event of a malfunction in the electrical
circuitry or disruption of the power supply.
NO EXHAUST IN ROOM: Products of combustion are
discharged outdoors.
FLUE PIPE: Outside air is drawn through a pipe-within-
a-pipe venting system. This process preheats
combustion air and regains heat from exhaust gases.
A CAUTION: ALTERNATE POWER SOURCES
The Monitor GF500 may not operate when powered
by sources such as an auxiliary generator, UPS
(Uninterrupted Power Source), inverters, etc.
Check with your dealer for guidance on specific
applications.