Trane 4TEP3F42A1000A User Manual

18-GE02D2=4
Convertible Air Handlers
1=1/2- 5 Ton for R-410A
4TEP3F18A1000A 4TEP3F36A1000A
4TEP3F24A1000A 4TEP3F42A1000A
4TEP3F30A1000A 4TEP3F48A1000A
4TEP3F48B1000B
4TEP3F63A1000A
4TEP3F63B1000B
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
information pack upon completion of work.
A. GENERAL iNFORMATiON
THIS iNFORMATiON iS FOR USE BY iNDiViDUALS
HAVING ADEQUATE BACKGROUNDS OF ELECTRICAL
AND MECHANICAL EXPERIENCE. ANY ATTEMPT TO
REPAIR A CENTRAL AiR CONDiTiONiNG PRODUCT
MAY RESULT iN PERSONAL iNJURY AND/OR PROP=
ERTY DAMAGE. THE MANUFACTURER OR SELLER
CANNOT BE RESPONSIBLE FOR THE INTERPRETA-
TION OF THiS iNFORMATiON, NOR CAN iT ASSUME
ANY LiABiLiTY iN CONNECTION WiTH iTS USE.
Contents
General information ...........
installationLimitations& ...........
Unit Installation
Upflow
Downflow
HorizontalLeft
HorizontalRight
To prevent shortening its service life, the air handler
should not be used during the finishing phases of
construction. The low return air temperaturescan lead
to the formation of condensate. Condensat_ ;i_;;;the
presence of chloridesand fluorides from pai;!i _ish,
stains, adhesives, cleaning ......
createsacorrosive .........
deterioration of the cabinet _;_ int_ _al _p ;_ents.
These instructions cover 811v_ i ;_ns in sys-
tems or provide for Should
further _formation e _ _ed o} particular problems
ar_ _ :are_ _ sufficiently by this manual,
co ;t No lo ::_ distributor or the manufacturer as
handler nameplate.
Thes_:_r Ha_lers are shipped from the factory in the
upflow horizontal right configuration and are fully
convertible to downflow or horizontal left. Refer to
Section B beginning on page 3 for additional information.
iNSPECTiON
Check carefully for any shipping damage. This must be
reported to and claims made against the transportation
company immediately. Check to be sure all major
components are in the unit. Any missing parts should
be reported to your supplier at once, and replaced with
authorized parts only.
Drain Piping
Eh -- Power Wiring
Control Wiring
Checkout Procedure
Hook-up Diagrams
Outline Drawings
Cardboard packing material must be removed from
inside the blower assembly before starting the unit.
Failure to do so may cause indoor blower motor failure.
INSTALLATION LIMITATIONS & RECOMMENDATIONS
The general location of the air handler is normally
selected by the architect, contractor and/or home owner
for the most effective application and satisfaction.
These air handlers are suitable for installation in a closet,
alcove or utility room with free, non-ducted, air return,
using the area space as a return air plenum. With ducted
supply air, if the minimum clearances to combustible
materials and service access are observed, the above
installations are suitable.

Trane 4TEP3F42A1000A Specifications

General

Brand	Trane
Model	4TEP3F42A1000A
Category	Air Handlers
Language	English

Summary

General Information and Warnings

Hazardous Voltage Warning

Safety warning about disconnecting power before servicing the unit.

Construction Phase Caution

Avoid using the air handler during construction finishing to prevent corrosion from low return air temps.

Installation Limitations and Recommendations

Packing Material Removal Caution

Remove cardboard packing material from the blower assembly before starting the unit to prevent motor failure.

General Location Suitability

Approved Installation Locations

Key Installation Considerations

Covers power, duct insulation, static pressure, outline drawing, subbase, and supplementary heat.

Approved Heater Warning

Only American Standard heaters are approved; non-approved units void warranty.

Unit Installation Procedures

Upflow Configuration

Remove horizontal drip tray and factory baffle; replace with narrow coil baffle for efficiency.

Downflow Configuration

Downflow baffle kit installation is mandatory; remove drip tray and factory baffle.

Support and Pedestal Requirements

Downflow Baffle Kit Installation

Detailed steps for coil removal, baffle replacement, and gasket installation for downflow.

Horizontal Left Conversion

Steps for rotating coil, replacing baffle, and sealing openings for horizontal left installation.

Horizontal Left Suspension

Auxiliary Drain Pan Recommendation

Horizontal Right Configuration

Unit is shipped in this configuration; suspension using threaded rods is suggested.

Duct and Piping Connections

Duct Connector Requirements

Refrigerant Piping Routing

Route piping for service access to blower and filter. Connections are made externally.

TXV Bulb Protection During Brazing

Protect TXV bulb with a wet rag or remove it during brazing to prevent overheating.

Brazing Shield Use

Utilize the provided brazing shield to protect fittings and painted areas during brazing.

Condensate Drain Leveling

Ensure the unit is installed level to guarantee proper condensate drainage.

Primary Drain Line Trapping

Primary drain line must have a minimum 2" water seal trap; field-fabricated traps are acceptable.

Trap Location and Maintenance

Condensate Drain Piping and Electrical Wiring

Teflon Tape for Drain Connections

CAUTION: Plastic Coupling

Do not use a torch or flame near the plastic drain pan coupling to prevent damage.

Power Wiring Requirements

Wire and Fuse Size Selection

Grounding and Wiring Codes

All wiring must conform to National and Local codes; ground the unit according to local codes.

Cabinet Sealing

Control Wiring and Checkout Procedure

Low-Voltage Wiring Standards

Supplementary Heater Wiring

Supplementary Heater Inspection

General Checkout Procedure

Check the Air Handler operation and installation according to the checklist on page 12.

CAUTION: Blower Assembly Packing

Cardboard packing material must be removed from the blower assembly before starting the unit.

Wiring Diagrams: Single Speed Cooling

Low Voltage Wiring Gauge

Field-Installed Heater Connection

Outline Drawings and Dimensions

Vertical Upflow Configuration

Minimum Unit Clearance Requirements

Physical Dimensions (A-H)

Gas and Liquid Line Connections

Cage Nut Mounting Instructions

Mounting Dimension Diagram

Model-Specific Cage Nut Dimensions

Final Checkout Procedures

Power and Wiring Verification

Confirm power is off, wiring is secure, and grounding meets code requirements.

Unit Integrity and Cleanliness

Duct and Drain System Checks

Secondary Drain and Power Supply

Filter and System Operation

Supplementary Heater Checkout

Heater Circuit Verification

Check if the heater requires a special circuit as noted in "Limitations and Recommendations".

Heater Wiring and Protection Check

Control Box Panel Security

Heater Operation in System