Warnings and cautions
WARNING
R410A Refrigerant under higher pressure than R-22 Refrigerant!
Units described in this manual use R410-A refrigerant which operates at 50 to 70% higher pressures
than R-22. Use only R-410A approved service equipment. Refrigerant cylinders are painted with
"pink" color to indicate the type of refrigerant and may contain a "dip" tube to allow for charging
of liquid refrigerant into the system. For specific handling concerns with R-410A, contact your local
Trane representative.
Failure to use R-410A approved service equipment could lead to standard equipment exploding
under R410A higher pressure and as a consequence could result in death or serious injury.
NOTICE
Use PVE Oil with R-410-A mini-split units!
All R-410A mini-split units use a PVE oil (polyvinyl ether 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 PVE oil, contact your local Trane
representative.
USE ONLY FACTORY RECOMMENDED - DAFNE HERMETIC OIL FV50S - for servicing these units.
*NOTICE:
Models 16 SEER 4TX1618A, 4TYK1618A and 4TXK1624A, 4TYK1624A (18K y 24K)
use RB68EB POE Oil as indicated in page 9 graphic.
Important!
Environmental concerns
Scientific research has shown that certain man-made chemicals can affect earth's naturally occurring
stratospheric ozone layer when released to the atmosphere. In particular, several of the identified chemicals
that may affect the ozone layer are refrigerants that contain chlorofluorocarbons (CFC) and those containing
hydrochlorofluorocarbons (HCFC). Not all refrigerants containing theses compounds have the same potential
impact on the environment. The company advocates the responsible handling of all refrigerants, including
industrial replacements for CFCs such as HCFC and HFC.
Responsible refrigerant practices
Trane believes that responsible refrigerant practices are important to the environment, our customers, and
the aire conditioning industry. All technicians who handle refrigerants must be certified. The Federal Clean
Act (Section 608) sets forth the requirements for handling, reclaiming, recovering and recycling of certain
refrigerants and the equipment that is used in these service procedures. Furthermore, some states or
municipalities may have additional requirements that must also be adhered to for responsible management of
refrigerants. Know the applicable laws and follow them.
Summary of Contents for 4MXW1609A1
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