SURE COMFORT GF802D125 (01) PDF Document

The SURE COMFORT GF802D125 two-stage downflow gas furnace includes the following features:

■ Patented heat exchanger, constructed of both stainless and aluminized steel for the maximum in corrosion resistance.

■ Low profile “34 inch” [864 mm] design is lighter and easier to handle, and leaves room for optional equipment.

■ Left or right side gas and electric inlet connections with quick, simple change.

■ Direct spark ignition.

■ Integrated control board with humidifier and electronic air cleaner hookups.

■ Insulated blower compartment, a two stage gas valve and a specially designed two speed draft inducer motor make it one of the quietest furnaces on the market today.

■ Pre-paint galvanized steel cabinet.

■ Grab-holes in doors to aid in easy door removal and replacement.

■ Compatible with single or two-stage thermostat. (For optimal performance, two-stage thermostat recommended.)

The SURE COMFORT GF802D125 2-Stage line of downflow gas furnaces is designed for installation in closets, alcoves, utility rooms, or attics. The design is certified by CSA International.

The SURE COMFORT GF802D125 is completely assembled and wired and includes a 2 speed induced draft blower; high and low pressure switches; 2 stage redundant main gas control; blower compartment door safety switch; solid state time on/time off blower control; limit control; transformer; and a direct drive multi-speed blower motor. Furnaces are equipped with a cooling/heating relay and transformer (40VA) ready for air conditioning applications. It also features a flame sensor, diagnostics, and fused-protection (secondary).

Please note: a thermostat is not included as standard equipment. The furnace is not listed for use with fuels other than natural or L.P. (propane) gas.

Yes, the SURE COMFORT GF802D125 can be converted by a qualified Sure Comfort™ professional or local service dealer to use L.P. (propane) gas without changing burners. Factory approved kits must be used to convert from natural to L.P. (propane) gas and may be ordered as optional accessories. For natural and L.P. (propane) gas models, direct spark ignition is 100% lockout type.

No, the SURE COMFORT GF802D125 furnace is not approved or recommended for use in mobile homes.

NOTES: All models are 115V, 60HZ, 1Ø. Gas connection size for all models is 1/2″ [12.7 mm] N.P.T.
① In accordance with D.O.E. test procedures.
② See Conversion Kit Index for high altitude derate in U.S. applications. For Canadian applications, reference the furnace installation instructions.

The model number “GF802D125AS60” is identified as follows:

GF: Gas Furnace

80: 80% Efficiency

2: 2 Stage

D: Downflow

125: Heating Input Designation – 125,000 BTU/HR [37 kW]

A: Variation

S: Variation – Standard Cabinet (W = Wide Cabinet)

60: Nominal Cooling Designation – 5 Tons (36 = 3 Tons, 48 = 4 Tons)

NOTES:
① May require a 3″ [76 mm] to 4″ [102 mm] or 3″ [76 mm] to 5″ [127 mm] adapter.
② May be 0″ [0 mm] with type B vent.
③ May be 1″ [25 mm] with type B vent.
Furnaces must be vented in accordance with the National Fuel Gas Code, ANSI Z223.1 and/or Can/CGA-B149 Installation Codes and in accordance with local codes.

The following table details the blower performance data for the SURE COMFORT GF802D125 Downflow model.

NOTES:
Data compiled with factory filters installed.
Factory rated to 0.5″ W.C.

For installations on a combustible floor, a special factory supplied combustible floor sub-base is required. Failure to install the sub-base may result in fire, property damage, and personal injury.

The downflow filter sizes for the SURE COMFORT GF802D125 depend on the furnace width and input. The RXGF-CC* Filter Rack is a downflow top return mount accessory.

NOTE: Filter racks are shipped without filters.

The RXPF-F01 and F02 FOSSIL FUEL KIT is for use with Sure Comfort™ Heat Pumps warm air furnaces like the SURE COMFORT GF802D125. The RXPF-F02 model meets TVA requirements.

For high altitude conversion, you should refer to the Installation Instructions for more detailed information. Always follow National Fuel Gas Code (NFGC) guidelines when converting furnaces for high altitudes.

Before proceeding with installation of the SURE COMFORT GF802D125, refer to the installation instructions packaged with the model, as well as complying with all Federal, State, Provincial, and Local codes, regulations, and practices.