Carrier 338106-754-CBP Installation Instructions Manual Download Page 1

338106--754--CBP

338106--755--CBP

338106--756--CBP

338106--757--CBP

Installation Instructions

Blower Housing Service Kit

For 35---in. Tall High Efficiency

Condensing Gas Furnace

NOTE

: Read the entire instruction manual before starting the

installation.

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. Have a fire extinguisher available. Read these
instructions

thoroughly and follow all warnings or cautions

include in literature and attached to the unit. Consult local building
codes, the current editions of the National Fuel Gas Code (NFGC)

NFPA 54/ANSI Z223.1 and the 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 the 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.
Follow all safety codes. Wear safety glasses and work gloves. Have

a fire extinguisher available.

!

WARNING

FIRE, EXPLOSION, ELECTRICAL SHOCK

HAZARD

Failure to follow this warning could result in personal injury,

death and/or property damage.
The ability to properly perform maintenance on this equipment

requires certain knowledge, mechanical skills, tools, and

equipment. If you do not possess these, do not attempt to

perform any maintenance on this equipment other than those

procedures recommended in the Home Owner’s Information

Manual.

!

WARNING

FIRE, EXPLOSION, ELECTRICAL

SHOCK AND

CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in personal injury,

death and/or property damage.
Improper

installation,

adjustment,

alteration,

service,

maintenance, or use can cause carbon monoxide poisoning,

explosion, fire, electrical shock, other conditions, which could

result in personal injury or death. Consult your distributor or

branch for information or assistance. The qualified installer or

agency must use only factory--authorized kits or accessories

when servicing this product.

!

WARNING

ELECTRICAL SHOCK, FIRE OR EXPLOSION HAZARD

Failure to follow this warning could result in personal injury or

death, or property damage.
Before installing, modifying, or servicing system, main electrical

disconnect switch must be in the OFF position and install a

lockout tag. There may be more than one disconnect switch.

Lock out and tag switch with a suitable warning label. Verify

proper operation after servicing.

INTRODUCTION

This instruction covers the blower housing installation on 35 in.

tall condensing gas furnaces. The blower housing should be
replaced when there is visible damage to the blower housing.

DESCRIPTION AND USAGE

The blower housing replacement kit can be utilized to restore units
having blower assemblies that require repair. This kit contains the

following items: Blower housing assembly with cut--off plate and a

loose parts bag with screws. See Table 1 for kit usage. See Table 2
for kit contents.
A replacement motor and blower wheel are NOT included in this
kit and must be ordered separately.

Table 1

Kit Usage

INPUT

BTUH

KIT NUMBER

WHEEL SIZE

40,000

338106---757---CBP

11 x 7

60,000

338106---754---CBP

11 x 8

80,000

100,000

338106---755---CBP

11 x 10

120,000

338106---756---CBP

11 x 11

Summary of Contents for 338106-754-CBP

Page 1: ...asses and work gloves Have a fire extinguisher available WARNING FIRE EXPLOSION ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury death and or property damage The ability to properly perform maintenance on this equipment requires certain knowledge mechanical skills tools and equipment If you do not possess these do not attempt to perform any maintenance on this...

Page 2: ... combustion air pipe supports and move the pipes out of the way Secure the pipes if necessary Otherwise it will be necessary to cut the pipes at a point external to the furnace casing 5 After disconnecting or cutting the vent and combustion air pipes loosen both clamps at the vent and combustion air pipe grommets attached to the blower shelf of the furnace See Figure 1 and Figure 3 NOTE If the gro...

Page 3: ...ower housing and set the bracket aside 6 Remove the screws that secure the blower cut off to the blower housing 7 Remove the blower cut off and set aside 8 Loosen the blower wheel set screw until wheel spins freely on motor shaft 9 Remove the bolts that attach the blower motor mounting arms to the blower housing 10 Remove the blower motor 11 Remove the blower wheel from the housing 12 Remove the m...

Page 4: ... or property damage Never purge a gas line into a combustion chamber Never test for gas leaks with an open flame Use a commercially available soap solution made specifically for the detection of leaks to check all connections A fire or explosion may result causing property damage personal injury or loss of life WARNING RISQUE D EXPLOSION ET D INCENDIE Le non respect des avertissements de sécurité ...

Page 5: ...cts of combustion into the combustion air pipe can damage the furnace Verify proper venting and vent termination per installation instructions For additional information and a complete sequence of furnace operation refer to furnace Installation Start Up and Operating Instructions 16 After System Check out is complete set thermostat below room temperature 17 Verify that burner shuts down and blower...

Page 6: ...is St S Indianapolis IN 46231 Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations Catalog No IIK 338106 02 Printed in U S A Edition date 09 11 Replaces IIK 338106 01 338106 ...

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