Trane ComfortLink II Charge Assist 4TTZ0 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.
These instructions and illustrations do not cover all varia-
tions 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 install-
ing 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 maxi-
mum efficiency, optimum performance and best overall system
reliability.
WarnInG
!
these units use r-410a refrigerant which operates at 50 to 70%
higher pressures than r-22. Use only r-410a 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 r-410a systems
use a Poe/aB 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 r-410a and Poe/aB oil, reference retrofit Bulletin trn-aPG02-
en. check for transportation damage after unit is uncrated. re port
promptly, to the carrier, any damage found to the unit.
caUtIon
!
UnIt contaInS r-410a 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/AB COMPRESSOR OIL.
Installer's Guide
air condi
4ttZ0/4tWZ0 with comfortLink
1
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
(INFORMATION APPLICABLE TO HEAT PUMPS ONLY:)
The Heat Pump has been designed and manufactured to withstand
and operate in severe winter conditions. However, there are pre-
cautionary steps which should be taken at the time of installation
which will help assure the efficient operation of the unit. It is rec-
ommended that these precautions be taken for units being
installed in areas where snow accumulation and prolonged
below freezing temperatures occur.
1. Units should be elevated three (3) to twelve (12) inches above
2. If possible, avoid locations that are likely to accumulate snow
3. Avoid locating the unit where condensation and freezing of de-
4. Avoid locating the unit under the eaves or other overhead
tioner/
heat Pump
II and charge assist
™
Single Unit Installation
1' Behind
the pad or roof top, depending on local weather. This additional
height will allow better drainage of snow and ice (melted dur-
ing 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.
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.
frost vapor may annoy the customer. For instance, installing
the unit under a bedroom, kitchen, or picture window may be
annoying to the customer since condensate 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-Bc53d2-3
™
5' Above
Unrestricted
3'