Trane 4TTB3-D, Installer'S Manual

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.

Installer’s Guide

These instructions do not cover all variations in 

systems nor provide for every possible contingency 

to be met in connection with installation.  All phases 

of this installation must comply with NATIONAL, 

STATE AND LOCAL CODES.  Should further information 

be desired or should particular problems arise which are 

not covered sufficiently for the purchaser’s purposes, the 

matter should be referred to your installing dealer or local 

 distributor.

 A.  GenerAl

WArnInG

!

This information is intended for use by individuals pos ses­
s ing adequate backgrounds of electrical and mechanical 
 experience. Any attempt to repair a central air condition ing 
product may result in personal injury and or  property damage. 
The manufacturer or seller cannot be respon sible for the 
interpretation of this information, nor can it  assume any liability 
in connection with its use.

NOTICE: 

Trane has always recommended installing Trane 

approved matched indoor and outdoor systems.
The benefits of installing approved matched systems 

are maximum efficiency, optimum performance and 

best overall system reliability. 

WArnInG

!

These units use r­410A refrigerant which operates at 50 to 70% 
higher pressures than r­22. Use only r­410A approved service 
equipment. refrigerant cylinders are painted a “rose” color to 
indicate the type of refrigerant and may contain a “dip” tube to 
allow for charging of liquid refrigerant into the system. All r­410A 
systems use a POe oil that readily absorbs moisture from the 
atmosphere. To limit this “hygroscopic” action, the system should 
remain sealed whenever possible. If a system has been open to 
the atmosphere for more than 4 hours, the compressor oil must 
be replaced. never break a vacuum with air and always change 
the driers when opening the system for component replacement.  
For specific handling concerns with r­410A and POe oil, 
reference retrofit Bulletin  
SSC­APG011­en.

Check for transportation damage after unit is uncrated.  

Report promptly, to the carrier, any damage found to the 

unit.
To determine the electrical power requirements of the unit, 

refer to the nameplate of the unit.  The electrical power 

available must agree with that listed on the nameplate.

Condensing Units

4TTB3­D

18­AC80D1­2

 B.  lOCATIOn AnD PrePArATIOn  

OF The UnIT

  1.  When removing unit from the pallet, notice the tabs on 

the basepan. Remove tabs by cutting with a sharp tool 

as shown in Figure 2 (see page 2).

  2. The unit should be set on a level support pad at least 

as large as the unit base pan, such as a concrete 

slab. If this is not the application used please refer to 

application bulletin SSC-APG002-EN.

  3.  The support pad must NOT be in direct contact with 

any structure.  Unit must be positioned a minimum 

of 12" from any wall or surrounding shrubbery to 

insure adequate airflow.  Clearance must be provided 

1

5 FT. ABOVe UnIT — UnreSTrICTeD

CAUTIOn

!

UnIT COnTAInS r­410A reFrIGerAnT!

R-410A OPERATING PRESSURE EXCEEDS THE 
LIMIT OF R-22. PROPER SERVICE EQUIPMENT IS 
REQUIRED. FAILURE TO USE PROPER SERVICE 
TOOLS MAY RESULT IN EQUIPMENT DAMAGE OR 
PERSONAL INJURY.

SerVICe

USE ONLY R-410A REFRIGERANT AND

APPROVED POE COMPRESSOR OIL.