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 installa-
tion 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 possess-
ing adequate backgrounds of electrical and mechanical
experience. Any attempt to repair a central air conditioning
product may result in personal injury and or property dam-
age. 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 avail-
able 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 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).
Condensing Units
2TTZ9C with ComfortLink
™
II and Charge Assist
™
18-AC53D1-5
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 twenty-five (25) feet (suction
line). If air handler is mounted above condensing unit,
maximum lift should not exceed twenty-five (25) 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 accordance
with instruction included with that unit.
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.
The indoor end of the recommended refrigerant line sets may
be straight or with a 90 degree bend, depending upon situation
requirements. This should be thoroughly checked out before
ordering refrigerant line sets.
1
5 FT. ABOVE UNIT — UNRESTRICTED
