CARRIER Furnace/Heater, Gas Manual L0902273

User Manual: CARRIER CARRIER Furnace/Heater, Gas Manual CARRIER Furnace/Heater, Gas Owner's Manual, CARRIER Furnace/Heater, Gas installation guides

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Installation Instructions

NOTE: Read the entire instruction manual before starting the

installation.

SAFETY CONSIDERATIONS

Installing and servicing of heating equipment can be hazardous

due to gas and electrical components. Only trained personnel

should install or service heating equipment.

Untrained personnel can perform basic maintenance functions

such as cleaning coils or cleaning and replacing filters. All other

operations should be performed by trained service personnel.

When working on heating equipment, observe precautions in the

literature, on tags, and on labels attached to the unit.

Follow all safety codes. Wear safety glasses and work gloves.

Have fire extinguisher available.

Recognize safety information. This is the safety-alert symbol "_.

When you see this symbol on the furnace and in instructions or

manuals, be alert to the potential for personal iniury.

Understand the signal word 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 iniury or death. WARNING signifies a hazard

which could result in personal iniury or death. CAUTION is

used to identify unsafe practices which may result in minor

personal iniury or product and property damage. NOTE is used

to highlight suggestions that will result in enhanced installation,

reliability, or operation.

ELECTRICALSHOCK HAZARD

Failure to follow this warning could result in personal

iniury or death.

Before beginning any installation or modification, be sure

the main electrical disconnect switch is in the OFF position.

Unit may have more than one power switch.

UNIT OPERATION HAZARD

Failure to

damage.

Label all

controls.

follow this caution may result in equipment

wires prior to disconnection when servicing

INTRODUCTION

This instruction covers installation of the electronically

commuted motor (ECM) Inducer Motor Kit Part No.

324906-762 on all models of 355MAV, 355AAV, 355BAV

355CAV, 58MVP, 58MVB, 58MVC and 58UVB Condensing

Gas Furnaces (40,000 through 120,000 Btuh inputs).

DESCRIPTION AND USAGE

Use this ICM inducer motor kit to replace a failed inducer motor

assembly.

This kit contains the following items:

Inducer Assembly 1

Installation Instructions 1

Inducer Spacer Kit 1

NOTE: Inducer assembly consists of motor, wheel, motor

mount, motor weight, inducer cover, inducer housing, vent cap,

and vent clamp.

INSTALLATION

Step 1-- Remove Old Motor Assembly

1. Turn electrical supply to unit to OFF position.

2. Remove main furnace door.

3. Remove lower drain tube from inducer housing cover.

4. Remove pressure switch assembly by removing 2 screws,

(See Fig. 1.)

5. Remove pressure switch tube at tee leading to burner box

and gas valve.

6. Move pressure switch assembly to side,

7. Remove combustion vent pipe by loosening clamp on

rubber connector and remove from housing.

8. Remove Inducer Water Shield (if present) by removing 2

screws, (See Fig. 1.)

9. Disconnect wire harness connector from inducer motor.

10. Remove 4 bolts securing inducer housing to cell inlet

panel.

Step 2 -- Install New Motor Assembly

1. Inspect seal on collector box where new inducer housing

will mate to ensure no damage has occurred. (See Fig. 2.)

NOTE: If collector box seal is damaged in any way, it must be

repaired. To repair, apply sealant releasing agent such as PAM

cooking spray or equivalent (must not contain corn nor canola

oil, halogenated hydrocarbons nor aromatic content to prevent

inadequate sealing) to inducer housing. Apply a small bead of GE

RTV 162, G.E. 6702, or Dow-Corning RTV 738 sealant to

groove in collector box. G.E. 162 (P771-9003) is available

through RCD in 3-oz. tubes.

PRIMARY HEAT "_ _ BURNER

EXCHANGER \ ENCLOSURE

(BEHIND CELL ,._-\ _

INLET PANEL) _ _. ==_

OOMBUST,ON-q 'IO ' GASVALVE

AIRINTAKE [1["__ _ _'j_l_ NDUCER

CONNECT,ON WATERBR,ELO

__ _ VENT OUTLET

CONDENSINGILL__ _1-kll

EXORAN E IlL. PRESSURE

/BERINOCELL BW,TCRES

iNLET PANEL) lly [ ._ _ _ _1"_ CONTROL CENTER

DRAINTUBE PANELBAPETY

IZ!_ __\ INTERLOCK

CONDENSATE __z[ L.. ---_-'_-'\-- ._\ [_ SWITCH

TRAP >._ Zb_ _

AIR FILTE_ __-" MOTOR AND

AND RETAINER BLOWER ASSEMBLY

A00018

Fig. 1 - Inducer Motor Assembly in Upflow Furnace

Orientation

NOTE: Actual component location may vary depending on

model and series.

2. Remove 4 mounting spacers from OLD inducer housing

and install in new inducer housing.

3. Install NEW inducer housing assembly by reinstalling 4

bolts removed earlier.

4. Reconnect pressure switch tube.

5. Secure pressure switch assembly to inducer motor mount

bracket using 2 screws removed earlier.

6. Reconnect combustion vent pipe to inducer housing

assembly and tighten clamp.

7. Remove Inducer Water Shield by removing 2 screws. (See

Fig. 1 .)

8. Reconnect inducer motor wire harness connector.

NOTE: On Models 355MAV/58MVB and 355BAV/58UVB

Series A/101 and B/Ill models the WIRE TIE closest to the gas

valve and around both the gas valve and inducer wires MUST BE

REMOVED to allow re-installation of the Inducer Water Shield

in Step 9.

NOTE: See wiring diagram on furnace for proper wire

connection.

9. Reinstall Inducer Water Shield and position wires to

inducer motor under front flange.

10. Reconnect drain tube to inducer housing cover.

NOTE: See tube routing and connection label on furnace for

proper tube location.

11. Remove cap and clamp from unused drain connection on

OLD inducer housing cover and install on unused drain

connection of NEW inducer housing cover.

12. Turn electrical supply to unit to the ON position.

13. Check furnace operation through 2 complete cycles.

14. Reinstall main furnace door.

A93081

Fig. 2- Inducer Motor Assembly in Upflow Furnace

Orientation

USE INDUCER SPACER KIT FOR DOWN-

FLOW CONFIGURATION

The inducer spacers can be found in KGACC0101SPC, which is

supplied in this kit. These Inducer Spacers are primarily intended

to be installed in the downflow position but may also be used in

other positions if they are found to correct any objectionable

inducer noise or vibration issues. In the downflow position, the

inducer motor grommets may sag. Installing the spacers will help

maintain the grommets' integrity and prevent the interference of

the wheel with the housing and /or noise related issues.

NOTE: Before installing spacers, make sure all brackets are

properly formed and inducer assembly is properly assembled.

To install the spacers in the unit:

1. Remove the upper right-hand screw from the grommet.

2. Insert screw through the spacer and reinstall in the furnace

grommet. See Fig. 3.

3. Repeat Step 2 for the upper left-hand screw.

4. Repeat Step 2 for the lower screw.

Fig. 3 - Inducer Spacers

A07618

Copyright 2007 CAC /BDP • 7310 W. Morris St. • Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 07/07

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations,

2

Catalo_l No: IIK324906-001

Replaces: IIK320727 i