Trane 4TXCB003CC3HCB - User Manual

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Installer's Guide

18-AH44D1 -6

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Cased Aluminum

Convertible

Coils

4TXCB003CC3HCB 4TXCC007CC3HCB

4TXCB004CC3HCB 4TXCC008CC3HCC

4TXCC005CC3HCB 4TXCD009CC3HCC

4TXCC006CC3HCB 4TXCD01

OCC3HCC

ALL

phases

this

installation

must

comply

with

NATIONAL, STATE

AND

LOCAL

CODES

IMPORTANT-This

Document is

customer

property

and

remain

with

this

unit.

Please

return

to service informa-

tion

pack

upon

completion

work.

A WARNING

HIGH

PRESSURE

HAZARD

Contains

Refrigerant!

System

contains

oil

and

refrigerant

under

high

pressure.

Recover

refrigerant

relieve

pressure

before

opening

the

system.

See

unit

nameplate

for

refrigerant

type.

not

use

non-approved

refrigerants,

refrigerant

substitutes,

refriger-

ant

additives.

Failure

proper

procedures

the

use

non-approved

refrigerants,

subsittutes,

re-

frigerant

additives

could

result

death,

serious

injury,

equipment

damage.

GENERAL

These coils

are

designed for

use

with

upflow, downfiow,

horizontal furnace

combination

with

heat

pump

cooling only outdoor section

using

R-410A

REFRIGER-

ANT.

This

equipment

has

been

evaluated

accordance

with

the

Code

Federal

Regulations,

Chapter

XX,

Part

3280

the

equivalent. "Suitable for Mobile Home use"

The

height

the

Furnace,

Coil

and

discharge

duct

work

must

be 7 ft.

less.

Inspection

Check carefully for

any

shipping

damage.

This

must

reported

and

claims

made

against

the

transportation

company immediately. Check to

sure

all

major

compo-

nents

are

the

unit.

Any

missing

parts

should

reported

your

supplier

once,

and

replaced

with

authorized

parts

only.

APPLICATION

INFORMATION

FURNACE AND COIL

The

coil MUST

installed

downstream

(in

the

outlet

air)

the

furnace.

The

coil apex

can

face into

away

from

the

direction

the

airflow, depending on horizontal left

right

application.

These coils fit

the

171h'', 21",

and

241h''

"width

furnaces

without

any

adapters

vertical upflow, downflow,

hori-

zontal left application.

Horizontal

right

configuration

requires

changes

the

coil

before

installation

(see

section

numbers

and

6).

2. INDOOR

UNIT

AIRFLOW

Indoor

unit

must

provide

the

required

airflow for

the

heat

pump

cooling combinations approved for

these

coils.

IMPORTANT: Review

your

installation requirements.

Check the table

the outline drawings

and

note

all

dimensions

for

your

coil

before beginning the installation.

RECOMMENDATION

a coil is

part

the

total

system

installation,

use

the

Installer's

Guide packaged

with

the

furnaces,

and

outdoor

sections,

and

comfort control for physically

installing

those

components.

recommended

that

the

outline

drawing

stud-

ied

and

dimensions properly noted

and

checked

against

selected

installation

site.

noting

advance

proper

clearance allowances for

installation

and

possible

future

service

the

coil.

A341869P20

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Summary

General Safety and Information

Warning: High Pressure Hazard

Critical safety warning regarding high pressure refrigerant hazards and proper handling procedures.

General Installation Guidelines

Covers general aspects like compliance with codes, inspection, and component checks.

Application Information

Details furnace/coil compatibility, airflow requirements, and system matching.

Installation Recommendations

Advice on referring to other guides and studying drawings for proper installation.

Coil Installation Procedures

D. Installing the Coils

Detailed steps for installing coils with different furnace types and configurations.

5. Furnace in Horizontal Left Position

Specific instructions for installing the coil and furnace in a horizontal left orientation.

6. Furnace in Horizontal Right Position

Specific instructions for installing the coil and furnace in a horizontal right orientation.

Refrigerant Lines and Brazing

E. Installing Refrigerant Lines

Guidelines for routing, securing, and preparing refrigerant tubing for connection.

F. Field Fabricated Interconnecting Lines

Procedure for connecting field-fabricated tubing to the coil or outdoor unit.

G. Brazing to Evaporator Section

Steps for brazing refrigerant lines to the coil, including precautions and techniques.

Post-Installation Checks and Connections

H. Leak Check

Procedures for performing leak checks on the refrigerant lines using nitrogen.

I. Condensate Drain Piping

Instructions for installing and insulating the condensate drain line.

J. Inspecting the Coil

Guidance on inspecting the coil, cleaning insulation, and maintaining air quality.

K. Duct Connections

Recommendations for connecting supply and return air ducts to the coil.

L. Operational and Checkout Procedures

Reference to further procedures in the outdoor unit installer guide.

This document describes the installation and maintenance of Cased Aluminum "Convertible" Coils, specifically models 4TXCB003CC3HCB, 4TXCB004CC3HCB, 4TXCC005CC3HCB, 4TXCC006CC3HCB, 4TXCC007CC3HCB, 4TXCC008CC3HCC, 4TXCD009CC3HCC, and 4TXCD010CC3HCC. These coils are designed for use with upflow, downflow, or horizontal furnaces in combination with a heat pump or cooling-only outdoor section, utilizing R-410A REFRIGERANT.

Function Description:

The Cased Aluminum "Convertible" Coils serve as the indoor heat exchanger component in a split-system heating and cooling setup. They are designed to facilitate the transfer of heat between the indoor air and the refrigerant, enabling either cooling or heating of the conditioned space. The "convertible" aspect refers to their adaptability to various furnace orientations: upflow, downflow, or horizontal (left or right). This flexibility is achieved through specific installation procedures and, in some cases, modifications to the coil's internal baffles. The coils are pressurized with 10 to 20 psi nitrogen during shipping to prevent contamination and allow for leak detection prior to installation.

Important Technical Specifications:

Refrigerant Type: R-410A REFRIGERANT. It is critical to use only approved refrigerants; non-approved types can cause serious injury or equipment damage.
Pressure: Shipped with 10 to 20 psi nitrogen holding charge. Refrigerant lines and indoor coil must be pressurized to 150 PSIG maximum for leak checking after brazing.
Furnace Compatibility: Designed to fit 17½", 21", and 24½" width furnaces without adapters in vertical upflow, downflow, or horizontal left applications. Horizontal right configuration may require coil modifications.
Mobile Home Use: Evaluated in accordance with the Code of Federal Regulations, Chapter XX, Part 3280 or equivalent, making them suitable for mobile home use. The combined height of the furnace, coil, and discharge ductwork must be 7 ft. or less.
Airflow: The indoor unit must provide the required airflow for the heat pump or cooling combinations approved for these coils.
Pressure Drop Characteristics (Cooling and Heat Pump Coils):
- 4TXCB003CC3HCB: Airflow (CFM) ranges from 510 (.05" WC) to 1415 (.4" WC). Weight: 45 lbs. Height "A": 22-5/8". Overall Width "B": 17-1/2". Opening Width "C": 16-1/2". Top Opening "D": 15-3/4". Gas Connection: 5/8 BRAZE. Liquid Connection: 3/8 BRAZE. Matched Furnace Width: 17-1/2".
- 4TXCB004CC3HCB: Airflow (CFM) ranges from 465 (.05" WC) to 1505 (.4" WC). Weight: 49 lbs. Height "A": 26-7/8". Other dimensions same as 4TXCB003CC3HCB.
- 4TXCC005CC3HCB: Airflow (CFM) ranges from 550 (.05" WC) to 1795 (.4" WC). Weight: 48 lbs. Height "A": 22-5/8". Overall Width "B": 21". Opening Width "C": 20". Top Opening "D": 19-1/4". Gas Connection: 5/8 BRAZE. Liquid Connection: 3/8 BRAZE. Matched Furnace Width: 21".
- 4TXCC006CC3HCB: Airflow (CFM) ranges from 460 (.05" WC) to 1740 (.4" WC). Weight: 51 lbs. Height "A": 26-7/8". Other dimensions same as 4TXCC005CC3HCB.
- 4TXCC007CC3HCB: Airflow (CFM) ranges from 550 (.05" WC) to 1795 (.4" WC). Weight: 53 lbs. Height "A": 26-7/8". Other dimensions same as 4TXCC005CC3HCB.
- 4TXCC008CC3HCC: Airflow (CFM) ranges from 680 (.05" WC) to 1950 (.4" WC). Weight: 65 lbs. Height "A": 30-11/16". Other dimensions same as 4TXCC005CC3HCB.
- 4TXCD009CC3HCC & 4TXCD010CC3HCC: Airflow (CFM) ranges from 670 (.05" WC) to 2180 (.4" WC). Weight: 68 lbs. Height "A": 30-11/16". Overall Width "B": 24-1/2". Opening Width "C": 23-7/16". Top Opening "D": 22-3/4". Gas Connection: 3/4 BRAZE. Liquid Connection: 3/8 BRAZE. Matched Furnace Width: 24-1/2".
Refrigerant Control: TXV (NON-BLEED) for all models.
Drain Pan: Plastic.

Usage Features:

Convertible Design: Can be installed in upflow, downflow, or horizontal furnace configurations.
Horizontal Left Installation: The coil is shipped ready for horizontal left configuration. The coil case is rotated so the apex of the coil is away from the furnace, and the auxiliary drain pan is on the lower side. A two-piece baffle is installed on the coil and required for this application. A left guard is also included for horizontal left installations.
Horizontal Right Installation (for non-condensing furnaces only): Requires removal of the factory-installed two-piece baffle and replacement with a specific top baffle (models 4TXCB004, 4TXCC005, 4TXCC006, 4TXCC007, and 4TXCC008). The coil must be placed downstream of the furnace, with the apex pointing opposite the direction of airflow.
Brazing: Field-fabricated interconnecting lines require brazing. The TXV bulb must be protected (wrapped with a wet rag) or removed during brazing to prevent overheating, which can affect its performance. Nitrogen flow through the tubing during brazing is recommended to prevent oxidation.
Condensate Drain: Connections are located in the drain pan at the bottom of the coil/enclosure. A field-fabricated trap is required within 4 feet of the furnace/air handler condensate drain connection. All unused drain connections must be plugged.
Duct Connections: Supply and return air ducts should be connected to the unit with flame retardant duct connectors. Duct flange connections are provided at both supply and discharge openings.
Alignment: Standoffs and screws are included for securing alignment to the furnace in vertical installations. Brackets are used for connecting the furnace and coil in horizontal downflow configurations.

Maintenance Features:

Inspection for Shipping Damage: Upon receipt, inspect for any shipping damage and report it immediately to the transportation company. Verify all major components are present.
Leak Check: After brazing refrigerant lines, pressurize the system with dry nitrogen to 150 PSIG maximum and leak check all brazed connections using soap bubbles. Repair any leaks before relieving pressure.
Coil Cleaning: The two-piece door (or three-piece on 24.5" wide models) allows for removal of outer casing doors without interfering with refrigerant or condensate lines. The split inner coil panels can then be moved for easy inspection and cleaning of the coil. The coil can be removed and washed with a water hose. The foil-covered insulation on the 4TXC coils should be wiped down, and residual dirt and dust vacuumed up to maintain good air quality.
Refrigerant Recovery: Before opening the system for service, recover refrigerant to relieve pressure. Refer to the unit nameplate for refrigerant type.
Regular Operational Procedures: Follow the "Operational Procedure" found in the outdoor unit Installer Guide for system checkout.