ICP C9MPX100L20A2, H9MPX060F12A2, H9MVX080J20A1, H9MVX100L20A1, T9MPX080J16A2 Installation Guide

INSTALLATION INSTRUCTIONS

For the replacement of Secondary Heat Exchanger

Part Numbers 1174980, 1174981, 1174982 & 1177461

This kit is designed to replace the secondary heat exchanger on the

95% N9MPX, *gUHX, *gMPX & *gMVX Furnaces

* Denotes Brand (T, H or C)

SAFETY CONSIDERATIONS

Improper installation, adjustment, alteration, service,
maintenance, or use can cause explosion, fire, electrical

shock, or other conditions which may cause death,
personal injury, or property damage. Consult a qualified
installer, service agency, or your distributor or branch for

information or assistance. The qualified installer or
agency must use factory-authorized kits or accessories

when modifying this product. Refer to the individual
instructions packaged with the kits or accessories when

installing.
Follow all safety codes. Wear safety glasses, protective

clothing, and work gloves. Use quenching cloth for
brazing operations. Have fire extinguisher available. Read

these instructions thoroughly and follow all warnings or
cautions included in literature and attached to the unit.

Consult local building codes, the current editions of the
National Fuel Gas Code (NFCG) NFPA 54/ANSI Z223.1,
National Electrical Code (NEC) NFPA 70.
In Canada refer to the current editions of the National

standards of Canada CAN/CSA-B149.1 and .2 Natural
Gas and Propane Installation Codes, and Canadian

Electrical Code CSA C22.1.
Recognize safety information. This is the safety-alert

symbol _. When you see this symbol on the unit and in
instructions or manuals, be alert to the potential for
personal injury. Understand these signal words;

DANGER, WARNING, and CAUTION. These words are
used with the safety-alert symbol. DANGER identifies the

most serious hazards which will result in severe personal
injury or death. WARNING signifies hazards which could

result in personal injury or death. CAUTION is used to
identify unsafe practices which may result in minor

personal injury or product and property damage. NOTE is
used to highlight suggestions which will result in
enhanced installation, reliability, or operation.

DESCRIPTION AND USAGE

Use this secondary heat exchanger kit to replace a failed
secondary heat exchanger. This secondary heat exchanger

kit contains the following items:

Parts Supplied with Each Kit Qty.

Secondary Heat Exchanger/Panel Assembly 1
(includes insulation)

Panel Assembly Screws 20 Max

Turbulators, Short 14 Max
Turbulators, Long 14 Max

Collector Box Gasket 1

Transition Assembly Gasket 1

Inducer Assembly Gasket 1
Installation Instructions 1

FIRE EXPLOSION AND ELECTRICAL HAZARD

Failure to follow this warning could result in property damage,
personal injury, and/or death.
Turn off gas and electric supplies to unit before beginning any

installation or modification.
Turn off electric power supply at disconnect switch or service

panel beofre starting installation. Tag and lockout shutoff(s) with
appropriate device warning labels. There may be more than one

disconnect.

Follow the operating instructions on label attached to furnace.

UNIT OPERATION HAZARD
Failure to follow this caution may result in unit damage or

improper operation.
Label all wires prior to disconnection when servicing

controls. Wiring errors can cause improper and dangerous
operation.

Kit Part

1177461
1174980

1174981
1174982

* Denotes Brand (T, H or C)

*9UHX060F *9MPX060F

*9UHX080J *9MPX080J

*9U HX100L *9M PX100L

Used with Models

*9MVX040F
*9MVX060F

*9MVX080J
*9MVX100L

INTRODUCTION

This instruction covers installation of the secondary heat
exchanger kit part number 1174980, 1174981, 1174982 &
1177461 for all 95% furnaces.

Specifications subject to change without notice.

D'EQUIPMENT D'OPERATION

Lors des operations d'entretien des commandes, etiqueter

tousles ills avant de les deconnecter. Toute erreur de
c&blage peut 6tre une source de danger et de panne.

CUT HAZARD

Failure to follow this caution may result in personal injury.
Sheet metal parts may have sharp edges or burrs, use care and
wear appropriate protective clothing and gloves when handling
parts.

441 06 1077 02 June 2009

Figure 1 IFurnace

Transition Assy

Collector Box

(behind Transition

Assy.

Secondary Heat

Exchanger (behind

Collector Box)

-r

,x,

Inducer Assy

Pressure Switch

............................

Condensate Trap

INSTALLATION

Step 1 - Disconnect Wires and Tubing

Label wires and tubing prior to disconnection.

A. Turn off gas and electrical supplies to furnace.

B. Remove main furnace door.

C. Remove blower access door.
D. Detach electrical junction box.

E. Disconnect all wires from the inducer assembly.

F. Disconnect wires from the pressure switch

assembly.

G. Disconnect all drain and pressure switch tubes from

the transition assembly and pressure switch
assembly (Figure 2).

...... ........................................................ _ ....,

Figure 2

Drain

Tubes

L09 F010

ITwo Stage - Two Pressure Switches

Pressure
switch tubes

Pressure
Switches

i

L09F003

2 Specifications subject to change without notice. 441 06 1077 02