GCH950703BX

Dual-diameter tubular heat exchanger

• Two-stage gas valve convertible technology allows installer

to activate the two-stage valve with the flip of a dipswitch

• 110V Silicon Nitride igniter designed for long igniter life

• Furnace control board with self-diagnostics, colorcoded

low-voltage terminals, and provisions for

electronic air cleaner and 24-volt humidifiers

• Control board stores the last five diagnostic codes

in memory; simple push-button activation outputs

the fault history to a flashing red LED

• Low constant fan allows homeowner to activate the low

heat speed to efficiently circulate air throughout the home

• Self-adjusting feature automatically adjusts to

high- or low-stage operation based on outside temperature

without an outdoor temperature sensor

• Dual-certified for sealed combustion direct vent (2-pipe)

or non-direct vent (1-pipe) applications

• All models comply with California NOx emissions standards