Dual$aver Configuration & Operation

This furnace is capable of the following heating modes:

•Single Stage (Factory Setting)

•Modiﬁed Two-Stage

»Fixed 5-Min Low Stage

»Auto Time (1-12 Min) Low Stage

To change from the factory single-stage operation, adjust the dipswitches on the ignition control as follows:

Mode

5 Min Fixed

Auto

Off On

Mode Dipswitch

2nd Stage Delay Dipswitch

Note: This furnace is designed to be used with a single-stage room thermostat.

Start

Call for Heat

Safety Circuit Check

Start Furnace in Low Stage

Low-Heat Blower

Delay Time (5 Min)

Gas Valve Switch

to 2nd Stage

Blower Switch to Hi Heat Operation

Start

Call for Heat

Safety Circuit Check

Start Furnace

in Low Stage

Low-Heat Blower

Delay Time (1-12 Min)

Gas Valve Switch

to 2nd Stage

Blower Switch to Hi Heat Operation

T-Stat Satisﬁed