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Trane 2TTB3 Installer's Manual

Condensing units

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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.
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 posses-
sing adequate backgrounds of electrical and mechanical
experience. Any attempt to repair a central air conditioning
product may result in personal injury and or property
damage. The manufacturer or seller cannot be responsible
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.
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.
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 "Trane APB2001-02".
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 in front of
control box (access panels) & any other side requiring
Installer's Guide

Condensing Units

2TTB3
1
service access to meet National Electrical Code. Also,
the unit location must be far enough away from any
structure to prevent excess roof run-off water from
pouring directly on the unit. Do not locate unit(s) close
to bedroom(s).
4. The top discharge area must be unrestricted for at least
five (5) feet above the unit.
5. When the outdoor unit is mounted on a roof, be sure the
roof will support the unit's weight. Properly selected
isolation is recommended to prevent sound or vibration
transmission to the building structure.
6. The maximum length of refrigerant lines from outdoor to
indoor unit should NOT exceed sixty (60) feet.
7. If outdoor unit is mounted above the air handler, maxi-
mum lift should not exceed sixty (60) feet (suction line).
If air handler is mounted above condensing unit, maxi-
mum lift should not exceed sixty (60) feet (liquid line).
NOTE:
Refer to "Refrigerant Piping Software" Pub. No. 32-3312-0*
(the position of the * denotes the latest revision number).
8. Locate and install indoor coil or air handler in accor-
dance with instruction included with that unit.
2TTB-SVN01A-EN
5 FT. ABOVE UNIT — UNRESTRICTED
18-AC56D1-1

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Summary of Contents for Trane 2TTB3

  • Page 1: Condensing Units

    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.
  • Page 2 Installer’s Guide BASEPAN TAB REMOVAL C. INSTALLING REFRIGERANT LINES CAUTION If using existing refrigerant lines make certain that all joints are brazed, not soldered. Condensing units have provisions for braze connections. Pressure taps are provided on the service valves of outdoor unit for compressor suction and liquid pressures.
  • Page 3 LIQUID LINE SERVICE VALVE After the brazing operation of refrigerant lines to both the outdoor and indoor unit is completed, the field brazed connections must be checked for leaks. Pressurize through the service valve ports, the indoor unit and field refrigerant lines with dry nitrogen to 350-400 psi.
  • Page 4: Troubleshooting

    Installer’s Guide E. ELECTRICAL CONNECTIONS WARNING When installing or servicing this equipment, ALWAYS exercise basic safety precautions to avoid the possibility of electric shock. 1. Power wiring and grounding of equipment must comply with local codes. 2. Power supply must agree with equipment nameplate. 3.
  • Page 5: Field Wiring

    TYPICAL FIELD HOOK-UP DIAGRAMS PRINTED FROM B152901 P02 NOTE PRINTED FROM B152903 P02 W2 present only on 2 stage thermostat and furnace Notes: 1. Be sure power supply agrees with equipment nameplate. 2. Power wiring and grounding of equipment must comply with local codes. 3.
  • Page 6 SUBCOOLING CHARGING IN COOLING ABOVE 55°F OD AMBIENT The Trane company has always recommended installing Trane approved matched indoor and outdoor systems. All 13 SEER Trane split systems are ARI rated with only TXV indoor systems. The benefits of installing approved indoor and outdoor split systems are maximum efficiency, optimum performance and the best overall system reliability.
  • Page 7 832 (32-3/4) 2TTB3042A 841 (33-1/8) 2TTB3048A 1045 (41-1/8) 946 (37-1/4) 2TTB3060A 1045 (41-1/8) 946 (37-1/4) 18-AC56D1-1 2TTB3 OUTLINE DRAWING NOTE: ALL DIMENSIONS ARE IN MM (INCHES). 724 (28-1/2) 651 (25-5/8) 127 (5) 724 (28-1/2) 651 (25-5/8) 5/16 137 (5-3/8) 829 (32-5/8)
  • Page 8 Installer’s Guide Trane A business of American Standard Companies www.trane.com Trane has a policy of continuous product and product data improvement and it reserves the right to change design and specifications without notice.