Goodman Mfg GCH9 service manual Dual $aver Configuration & Operation, Product Design

Models: GCH9

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Page 11

PRODUCT DESIGN

This furnace is capable fo 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 thermosat.

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

Image 11

Contents

TECHNICAL MANUAL GCH9 40 95% Gas FurnaceHIGH VOLTAGE X A APRODUCT IDENTIFICATION These models are Low NOx PRODUCT IDENTIFICATIONGCH90453BXA GCH90703BXA GCH90704CXA GCH90904CXA GCH90905DXA GCH91155DXALocation Considerations PRODUCT DESIGNAccessibility Clearances Minimum General OperationDownflow /Horizontal COMPONENT IDENTIFICATIONGCH90703BX GCH9*****XACOMPONENT IDENTIFICATION GCH90453BXPRODUCT DESIGN PRESSURE SWITCH TRIP POINTS AND USAGE CHARTPRODUCT DESIGN ROLLOUT LIMIT SWITCHESPRODUCT DESIGN Coil Matches Goodman units using R22 and R-410ACoil Matches 1824Disposable Minimum Filter Area in2 ThermostatsFilters PRODUCT DESIGNDual $aver Dual $aver Configuration & OperationPRODUCT DESIGN GCH9 FURNACE SPECIFICATIONSBLOWER PERFORMANCE BLOWER PERFORMANCE SPECIFICATIONSBLOWER PERFORMANCE SPECIFICATIONS0140F00592 REV. A WIRING DIAGRAMSGCH9*****XAA,AB 0140F00647REV.B GCH9*****XACWIRING DIAGRAMS