Trane 4TXCA002DS3HCA User Manual

Table of Contents
General ............................................................................... 1
Application Information ................................................ 1
Recommendation ............................................................. 2
Furnace in Upflow Position .......................................... 2
Furnace in Downflow Position ..................................... 2
Furnace in Horizontal Right Position ........................ 3
Furnace in Horizontal Left Position ........................... 4
Maximum Airflow Setting, CFM ................................... 5
Installing / Brazing Refrigerant Lines ....................... 5
Leak Check........................................................................ 6
Condensate Drain Piping .............................................. 6
Cleaning the Coil ............................................................. 6
Outline Drawings ............................................................ 7
Troubleshooting Indoor TXV / Cooling Mode ......... 10
Installer’s Guide
ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES
IMPORTANT — This Document is customer property and is to remain with this unit. Please return to service informa-
tion pack upon completion of work.
WARNING
!
WARNING (Medium/high pressure)
Contains Refrigerant!
System contains oil and refrigerant under high pressure.
Recover refrigerant to relieve pressure before opening the
system. See unit nameplate for refrigerant type. Do not
use non-approved refrigerants, refrigerant substitutes, or
refrigerant additives.
Failure to follow proper procedures or the use of non-
approved refrigerants, substitutes, or refrigerant additives
could result in death, serious injury, or equipment damage.
A341869P33
IMPORTANT: Review your installation requirements. Check
the table on the outline drawings and note all dimensions
for your coil before beginning the installation.
Figure 1
18-AD35D1-2D-EN
Cased Aluminum "Convertible" Coils
Models:
4TXCA002DS3HCA
4TXCA032DS3HCA
4TXCB003DS3HCA
4TXCB004DS3HCA
4TXCB006DS3HCA
4TXCC005DS3HCA
4TXCC007DS3HCA
4TXCD008DS3HCA
4TXCC009DS3HCA
4TXCD010DS3HCA
NOTE:
OPTIONAL DOWNFLOW GASKET INSTALLATION: For
unusually humid applications that expect prolonged
operation above 70% RH, it is recommended to use the
BAYGSKT001A0 gasket kit to prevent water from forming
on the bottom of the drain pan and dripping into the sup-
ply ductwork.
WARNING
!
This product can expose you to chemicals including lead, which
are known to the State of California to case cancer and birth defects
or other reproductive harm. For more information go to www.
P65Warnings.ca.gov
A. GENERAL
These coils are designed for use in combination with a heat pump
or cooling outdoor section using R-410A REFRIGERANT.
The 4TXC equipment has been evaluated in accordance with
the Code of Federal Regulations, Chapter XX, Part 3280 or the
equivalent. “Suitable for Mobile Home use” The height of the
Furnace, Coil and discharge duct work must be 7 ft. or less.
Inspect the coil for shipping damage. Notify the transporta-
tion company immediately if the coil is damaged.
B. APPLICATION INFORMATION
1. FURNACE AND COIL
The coil MUST BE installed downstream (in the outlet air)
of the furnace.
2. INDOOR UNIT AIRFLOW
Indoor unit must provide the required airflow for the heat
pump or cooling combinations approved for these coils.

Trane 4TXCA002DS3HCA Specifications

General

Brand	Trane
Model	4TXCA002DS3HCA
Category	Furnace Accessories
Language	English

Summary

Safety Warnings

Refrigerant Pressure Handling

System contains refrigerant under high pressure. Recover before opening.

California Proposition 65 Warning

Product exposes to lead, known to cause cancer and birth defects.

General Information

Coil Purpose

Coils designed for heat pump/cooling outdoor sections using R-410A.

Application Information

Furnace and Coil Placement

Coil must be installed downstream of the furnace outlet air.

Indoor Unit Airflow

Indoor unit must provide required airflow for approved combinations.

Optional Downflow Gasket Installation

Gasket kit prevents water formation on drain pan in humid applications.

Furnace Installation in Upflow Position

Upflow Coil Conversion

Optional removal of coil components to maximize airflow efficiency.

Upflow Gas Furnace Connection

Apply gasket material and secure coil case to furnace for air leaks.

Furnace Installation in Downflow Position

Downflow Coil Conversion

Optional removal of coil components to maximize airflow efficiency.

Downflow Gasket Installation

Optional kit to prevent water formation on drain pan in humid conditions.

Downflow Gas Furnace Connection

Secure coil case to furnace plenum and furnace to coil case.

Furnace Installation in Horizontal Right Position

Horizontal Right Coil Conversion

Optional removal of coil components to maximize airflow efficiency.

Furnace and Coil Connection

Furnace top flange meets coil top flange; seal gaps between units.

Furnace Installation in Horizontal Left Position

Horizontal Left Coil Conversion

Optional removal of coil components to maximize airflow efficiency.

Horizontal Left Coil Orientation

Coil rotated so apex is away from furnace; auxiliary drain pan is lower.

Connection Brackets and Splash Guard

Use brackets for alignment and splash guard for drain pan.

Standoffs and Screws for Alignment

Use standoffs and screws for alignment, not for support in horizontal position.

Maximum Airflow Settings

Airflow Settings Table

Lists maximum airflow settings (CFM) for Upflow, Horizontal Left, Downflow, and Horizontal Right.

TXV Setting Note

TXV setting may run high superheat (15-25°F) by design.

Installing Refrigerant Lines

Refrigerant Line Installation Steps

Determine run, consider bends, route tubing, and secure before connections.

TXV Bulb Protection

Protect TXV bulb during brazing to maintain performance.

Brazing Best Practices

Shield painted areas, use nitrogen flow, good technique, minimize sharp bends.

Coil Cleaning

Cleaning Procedure

Remove panels, clean inside and outside of coil with brush and vacuum.

Leak Check

Leak Testing Procedure

Pressurize with nitrogen, check brazed connections with soap bubbles, repair leaks.

Condensate Drain Piping

Drain Hole and Trap

Clear drain hole, insulate primary line, connect secondary line without a trap.

Troubleshooting Indoor TXV / Cooling Mode

Troubleshooting Flowchart

Diagnoses TXV issues based on superheat, subcooling, and airflow.