Trane 2TTB3 Series 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.
NOTICE:
This outdoor unit is designed as a component replacement
option for existing HCFC 22 systems. This system is
shipped with a DRY NITROGEN charge and does not contain
HCFC 22.
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:
The manufacturer has always recommended installing
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.
Installer's Guide
Replacement Condensing Units
2TTB3/2TWB3
1
B. LOCATION AND PREPARATION OF THE UNIT
(INFORMATION APPLICABLE TO HEAT PUMPS ONLY)
1. Units should be elevated 3 to 12 inches above the pad or
2. If possible, avoid locations that are likely to accumulate
3. Avoid locating the unit where condensation and freezing
4. Avoid locating the unit under the eaves or other overhead
5 FT. ABOVE UNIT — UNRESTRICTED
This Heat Pump has been designed and manufactured to
withstand and operate in severe winter conditions.
However, there are precautionary steps which should be
taken at the time of installation which will help assure
the efficient operation of the unit. It is recommended
that these precautions be taken for units being
installed in areas where snow accumulation and
prolonged below freezing temperatures occur.
rooftop, depending on local weather. This additional height
will allow better drainage of snow and ice (melted during
defrost cycle) prior to its refreezing. This should prevent a
build-up of ice around the unit which occurs when unit is
not elevated. Insure that drain holes in unit base pan
are not obstructed preventing draining of defrost
water.
snow drifts. If not possible, a snow drift barrier should be
installed around the unit to prevent a build-up of snow on
the sides of the unit and should be of sufficient distance
from the unit to prevent restriction of airflow to and from
the unit. Also allow for proper maintenance space. The
barrier should be constructed of materials which will
blend in with the building design.
of defrost vapor may annoy the customer. For instance,
installing the unit under a bedroom, kitchen, or picture
window may be annoying to the customer since conden-
sate and fog will occur during the defrost cycle.
structures as sizeable icicles may form and the unit may
be damaged by these falling icicles.
18-BC56D1-5