WIRING DIAGRAMS

GCH9*****XAC

24VAC

HUMIDIFIER

OR

GY

BLOWER COMPARTMENT DOORSWITCH (OPENWHEN

HUMIDIFIER

INTEGRATED

 

CONTROLMODULE

TR(6)

C

24VTHERMOSTAT CONNECTIONS

24VAC

115VAC

40VA

TRANSFORMER

DOOROPEN)

 

 

 

 

GND

GAS

 

GND(8)

 

 

 

MVC(9)

 

 

 

 

 

 

HI

VALVE

 

MVH(12)

 

 

 

 

 

 

PM

 

 

 

 

 

 

 

 

 

 

 

AUXILIARYLIMITCONTROLS

 

 

 

 

 

C G R W Y

BK

FUSE

INTEGRATED

CONTROL

MODULE

ON OFF

2ND

STAGE DELAY * MODE *

HEAT

OFF DELAY *

*FACTORYSHOWN SETTINGS

 

 

XFMR-

DIAGNOSTIC

SEE

NOTE6

LED

 

H

115VACHOTANDPARKTERMINALS

WH

 

 

 

 

 

 

 

 

OR

3

2

1

 

PU

6

5

4

 

OR

9

8

7

 

BL GR

12

11

10

 

YL

 

 

OR

 

OR

GY

 

 

 

 

 

 

BR

 

RD

 

 

 

 

OR

 

GY

 

 

 

TERMINALS

115VACNEUTRAL

 

FS

 

WH

2

 

 

 

WH

1

 

 

 

 

 

 

 

BK

BK

GY

PU

GY

 

C

 

 

 

 

C

 

 

 

MVL(2)

 

NO

 

 

 

 

 

 

24VTHERMOSTATCONNECTIONS

G

 

PS(10)

 

FRONTCOVER

 

 

PRESSURESWITCH

 

 

 

Y

TO

PSO(4)

 

 

 

 

MICRO

HLI(7)

 

 

 

W

 

HLO(1)

 

 

 

 

 

 

C

NO

 

 

AUTORESETPRIMARY

 

 

 

 

R

 

LIMITCONTROL

 

IDBLOWER

 

RO2(11)

 

 

 

 

 

 

PRESSURE

 

 

 

 

 

 

 

RO1(5)

 

 

SWITCH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MANUALRESETROLLOUT

 

 

 

 

 

LIMITCONTROL(S)

 

 

 

 

TH(3)

 

(SINGLECONTROLON45KBTU)

 

 

 

 

24VAC

 

 

 

 

 

 

 

40VA

 

 

 

 

 

 

TRANSFORMER

 

 

XFMR-H

 

115VAC

 

 

 

 

 

 

FLAMESENSOR

 

 

 

 

 

FS

HOTSURFACE

 

 

 

 

 

 

 

 

 

 

 

 

IGNITER

 

 

OR INSTALLING THIS PRESENT. FAILURE TO PERSONAL INJURY OR DEATH.

COOL-H

HEAT-H

 

 

BK

 

SEE

LINE-H

 

 

 

 

GND

 

 

 

NOTE4

 

 

 

WH

 

 

 

 

 

 

 

 

BK(HI)

 

 

GY

 

 

RD

PK

 

BL(MED)

 

 

 

 

 

 

OR(MEDLOW)

 

 

 

 

RD(LOW)

 

 

BK

 

CIRCULATOR

 

BR BR

 

 

BLOWER

 

 

YL

CAPACITOR

 

 

WH

 

 

 

BLOWERCOMPARTMENT

 

 

PU GY

 

 

 

WH

 

 

GR

YL

RD

OR

BL

OR

BR

 

 

OR

 

 

 

IGN

 

 

 

 

 

 

INTEGRATEDCONTROLMODULE

 

 

 

 

ID

LINENEUTRALS

INTEGRATEDCONTROLMODULE

IND

 

 

 

BLWR

 

 

 

 

 

H

 

L

 

 

 

O

 

E

 

 

 

 

A

 

 

 

 

T-

 

 

 

 

H

 

COOL-H

CIRCULATOR

 

I

 

BLWR

 

 

 

 

H

-H

 

 

 

 

 

 

 

 

T

 

 

 

 

 

A

 

 

 

 

 

 

E

 

 

 

 

 

 

 

H

 

 

 

 

 

 

 

 

 

ELECTRONIC

 

 

 

EAC-H

 

 

AIRCLEANER

 

 

 

 

 

 

 

 

 

HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING UNIT. MULTIPLE POWER SOURCES MAY BE DO SO MAY CAUSE PROPERTY DAMAGE,

BURNERCOMPARTMENT

 

 

 

 

 

 

GND

 

 

 

 

 

 

 

BK

 

 

 

 

 

 

 

WH

 

 

 

WH

 

 

INDUCEDDRAFT

 

 

 

 

 

BLOWER

 

 

WH

 

 

 

 

 

 

 

 

 

 

AUTORESET

 

 

 

PU

 

 

PRIMARYLIMIT

 

 

 

 

 

CONTROL

 

 

 

 

 

 

 

 

 

 

 

BL

 

 

RD OR

 

YL

 

OR

 

 

 

 

 

 

 

 

N

C

 

 

 

 

 

 

O

 

 

 

 

PK

 

RD

WH

 

 

 

 

 

 

 

 

 

 

 

 

IDBLOWER

 

MANUALRESETROLLOUTLIMITCONTROL(S)

 

 

(SINGLECONTROLON45KBTU)

 

PRESSURE

24VAC

 

 

SWITCH

HUMIDIFIER

 

 

 

FRONTCOVER

 

PM

 

 

C

N

PRESSURESWITCH

2CIRCUIT

1

GY

O

 

GY

 

 

CONNECTOR

 

 

 

 

GND

GR

 

 

 

 

 

 

HOT

C

2

OR

 

 

 

 

SURFACE

 

 

 

 

 

 

 

 

 

 

 

IGNITER

HI

3

GASVALVE

 

BR

(HONEYWELL)

 

 

 

 

 

LINE-H

JUNCTIONBOX

DOOR

SWITCH

 

WARNING:

 

 

 

DISCONNECTPOWER

DISCONNECT

 

BEFORESERVICING.

 

 

WIRINGTOUNIT

 

 

 

MUSTBE

 

 

 

PROPERLY

 

 

 

POLARIZED

 

 

 

ANDGROUNDED.

 

 

 

L GND

N

 

TO115VAC/1 Ø/60HZPOWERSUPPLYWITH

 

OVERCURRENTPROTECTIONDEVICE

 

 

WARNING:DISCONNECTPOWERBEFORE

BL

JUNCTION

SERVICING.WIRINGTOUNITMUSTBE

PROPERLYPOLARIZEDANDGROUNDED.

BOX

 

 

 

 

WH

 

N

 

 

 

GND

FLAME

BK

 

L

 

DISCONNECT

 

SENSOR

 

 

 

 

 

0

STEADYON=NORMALOPERATION

 

OFF

 

=CONTROLFAILURE

1

1FLASH

=

SYSTEMLOCKOUT(RETRIESEXCEEDED)

2

2FLASHES

=PRESSURESWITCHSTUCKCLOSED

3

3FLASHES

=PRESSURESWITCHSTUCKOPEN

4

4FLASHES =OPENHIGHLIMIT

5

5FLASHES =FLAMESENSEWITHOUTGASVALVE

6

6FLASHES =

OPENROLLOUTOROPENFUSE

7

7FLASHES =LOWFLAMESIGNAL

8

8FLASHES =CHECKIGNITERORIMPROPERGROUNDING

C

CONTINUOUS/RAPIDFLASHES=REVERSED115VACPOLARITY

LOWVOLTAGE(24V)

LOWVOLTAGEFIELD

HIVOLTAGE(115V)

HIVOLTAGEFIELD

JUNCTION

TERMINAL

INTERNALTO INTEGRATEDCONTROL

PLUGCONNECTION

EQUIPMENTGND

FIELDGND

FIELDSPLICE

SWITCH(TEMP.)

IGNITER

SWITCH(PRESS.)

OVERCURRENT PROT.DEVICE

 

COLORCODES:

PKPINK

NOTES:

 

 

1.SETHEATANTICIPATORONROOMTHERMOSTATAT0.7AMPS.

 

YLYELLOW

BRBROWN

2.MANUFACTURER'SSPECIFIEDREPLACEMENTPARTSMUSTBEUSEDWHENSERVICING.

 

ORORANGE

WHWHITE

3.IFANYOFTHEORIGINALWIREASSUPPLIEDWITHTHEFURNACEMUSTBEREPLACED,ITMUSTBEREPLACEDWITHWIRINGMATERIAL

 

PUPURPLE

BLBLUE

HAVINGATEMPERATURERATINGOFATLEAST105

°C.USECOPPERCONDUCTORSONLY.

 

4.IFHEATINGANDCOOLINGBLOWERSPEEDSARENOTTHESAME,DISCARDJUMPERBEFORECONNECTINGBLOWERLEADS.UNUSED

 

GNGREEN

GYGRAY

 

BLOWERLEADSMUSTBEPLACEDON"PARK"TERMINALSOFINTEGRATEDCONTROLORTAPED.

 

BKBLACK

RDRED

 

5.UNITMUSTBEPERMANENTLYGROUNDEDANDCONFORMTON.E.C.ANDLOCALCODES.

 

 

 

 

0140F00647REV.B

6.TORECALLTHELAST5FAULTS,MOSTRECENTTOLEASTRECENT,DEPRESSSWITCHFORMORETHAN2SECONDSWHILEIN

 

STANDBY(NOTHERMOSTATINPUTS)

 

Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.

16

Page 16
Image 16
Goodman Mfg service manual GCH9*****XAC

GCH9 specifications

Goodman Manufacturing has established itself as a reliable name in the HVAC industry, and the GCH9 is a notable example of their commitment to creating energy-efficient and dependable heating solutions. This gas-fired, self-contained horizontal furnace is designed for residential applications, offering high efficiency and durability.

One of the main features of the Goodman GCH9 is its impressive Annual Fuel Utilization Efficiency (AFUE) rating. With a maximum AFUE of up to 92%, homeowners can enjoy reduced energy costs while ensuring their space remains comfortable and warm during the colder months. This high efficiency is achieved through advanced engineering and superior insulation, which minimizes heat loss.

The GCH9 utilizes a dual-stage gas valve and a variable-speed blower motor, contributing to its efficient operation. The dual-stage valve allows the furnace to modulate its output based on the heating demand, which means it can operate at a lower setting on milder days and ramp up when temperatures drop. This not only enhances comfort but also aids in reducing energy consumption. The variable-speed blower motor further optimizes airflow, improving the furnace's overall performance and allowing for quieter operation.

Another key characteristic of the Goodman GCH9 is its durable construction. The heat exchanger is crafted from aluminized steel, ensuring longevity and endurance against corrosion. Additionally, the furnace is equipped with a robust cabinet that provides both insulation and sound dampening, resulting in a quieter operation when compared to other models.

Installation of the Goodman GCH9 is streamlined thanks to its flexible design options. It can be installed in various configurations, making it suitable for diverse home layouts. Moreover, the GCH9 includes a multi-position design that facilitates downward, horizontal, or upflow configurations, allowing contractors to adapt to specific installation needs.

For homeowners seeking peace of mind, the Goodman GCH9 also comes with an excellent warranty. The limited lifetime warranty on the heat exchanger and a 10-year limited parts warranty further underscore Goodman Manufacturing's commitment to quality and customer satisfaction.

In summary, the Goodman GCH9 gas furnace stands out with its high AFUE rating, energy-efficient technologies, durable construction, and versatile installation options, making it a smart choice for modern homeowners looking to enhance their heating systems. With its combination of reliability and efficiency, the GCH9 is a testament to Goodman's dedication to quality and performance in home comfort solutions.