SURE COMFORT GF802D050 (01) PDF Document

The SURE COMFORT GF802D050 Two Stage Downflow Gas Furnace has 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 GF802D050 is completely assembled and wired and includes the following standard equipment:

• 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

• Direct drive multi-speed blower motor

• Cooling/heating relay and transformer (40VA) ready for air conditioning applications

• Flame sensor diagnostics

• Fused-protection (secondary)

Please note that 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, all models in the GF802D series, including the SURE COMFORT GF802D050, can be converted by a qualified professional or local service dealer to use L.P. (propane) gas without changing burners. Factory approved kits must be used for the conversion and can be ordered as optional accessories. For both natural and L.P. (propane) gas models, the direct spark ignition is a 100% lockout type.

No, the SURE COMFORT GF802D050 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. AFUE is in accordance with D.O.E. test procedures. For high altitude derate, refer to furnace installation instructions.

The model number provides details about the furnace. For example, in GF802D050AS36:

• GF = Gas Furnace

• 80 = 80% Efficiency

• 2 = 2 Stage

• D = Downflow

• 050 = Heating Input Designation (50,000 BTU/HR)

• A = Variation

• S = Variation (S = Standard Cabinet, W = Wide Cabinet)

• 36 = Nominal Cooling Designation (e.g., 36 = 3 Tons, 48 = 4 Tons, 60 = 5 Tons)

The following are the dimensions and clearances to combustible materials for the SURE COMFORT GF802D050 model.

Dimensions (inches) [mm]:

• A: 14 [356]
• B: 12 27/32 [326]
• C: 10 3/8 [264]
• D: –
• E: 13 1/8 [333]

Reduced Clearances (inches) [mm]:

Shipping Weight: 85 LBS. [38.6 kg]

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 blower performance data for the SURE COMFORT GF802D050, which has an 11 x 6 [279 x 152 mm] blower and a 1/2 H.P. [373 W] motor, is as follows:

NOTES: Data compiled with factory filters installed. Factory rated to 0.5″ W.C. E = Standard, N = NOx Models.

The unit design is certified for installation on non-combustible floors only. A special factory-supplied combustible floor sub-base (Model RXGC-B14) is required when installing on a combustible floor. Failure to install the sub-base may result in fire, property damage, and personal injury.

The dimensions for the RXGC-B14 combustible floor base are:

The RXGF-CC* is a filter rack accessory for a downflow top return mount configuration. For the SURE COMFORT GF802D050 with a 14-inch [356 mm] furnace width and an input of 50 kBTU [14.65 kW], one 14 [356] x 20 [508] inch [mm] filter is required. Note that filter racks are shipped without filters.

For high altitude conversion, refer to the installation instructions for more information. Always follow National Fuel Gas Code (NFGC) guidelines when converting furnaces for high altitudes.