Trane 4MCW3-A Installation Manual page 2

Warnings and Cautions
Warnings and Cautions.
throughout this manual. Warnings are provided to alert installing contractors to potential
hazards that could result in personal injury or death, while cautions are designed to alert
personnel to conditions that could result in equipment damage.
Your personal safety and the proper operation of this machine depend upon the strict
observance of these precautions.
Attention
literature. Read these carefully.
result in death or serious injury.
result in minor or moderate injury. It may also be used to alert against unsafe practices.
NOTICE
accidents.
Ground Required!
Follow proper local electrical code on requirements for grounding. Failure to follow
code could result in death or serious injury.
R410A Refrigerant under Higher Pressure than R22!
The units described in this manual use R410A 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, please contact your local Trane representative.
Failure to use R-410A approved service equipment could result in standard equipment
exploding under R-410A higher pressure which could result in death or serious injury.
NOTICE
Use PVE Oil with R-410A Mini-Split Units!
All R-410A mini-splits 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 THE FACTORY RECOMMENDED - DAFNE HERMETIC OIL FV50S - for
servicing these units.
Failure to follow these recommendations could result in equipment damage.
© 2010 Trane All rights reserved
Notice that warnings and cautions appear at appropriate intervals
Warnings and Cautions appear at appropriate sections throughout this
:
WARNING
Indicates a potentially hazardous situation which, if not avoided, could
:
CAUTION
Indicates a potentially hazardous situation which, if not avoided, could
:
Indicates a situation that could result in equipment or property-damage only
:
WARNING
WARNING
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