1. Key to symbols and safety instructions
1.1 Key to symbols
1.2 Safety
The following keywords are defined and can be used in this document:
Warnings in this document are identified by a warning
triangle. Keywords at the start of a warning indicate the
type and seriousness of the ensuing risk if measures to
prevent the risk are not taken.
This symbol indicates important information where there
is no risk to people or property.
DANGER
indicates a hazardous situation which, if not avoided, will
result in death or serious injury.
WARNING
indicates a hazardous situation which, if not avoided, could
result in death or serious injury.
CAUTION
indicates a hazardous situation which, if not avoided, could
result in minor to moderate injury.
NOTICE
is used to address practices not related to personal injury.
CAUTION:
CAUTION:
This document is customer property and is to remain with
this unit. Please return to service information pack upon
completion of work.
These instructions do not cover all variations in systems
or provide for every possible contingency to be met in
connection with the installation.
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.
WARNING: HAZARDOUS VOLTAGE
Failure to follow this warning could result in property damage,
severe personal injury or death.
Disconnect all electric power, including remote disconnects
before servicing. Follow proper lockout/tagout procedures to
ensure the power cannot be inadvertently energized.
WARNING: REFRIGERANT OIL
CAUTION: HOT SURFACE
This information is intended for use by individuals possessing
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.
These units use R-410A refrigerant which operates at 50% to 70%
higher pressures than R-22. Use only R-410A approved service
equipments. 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 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 opening 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.
May cause minor to severe burning. Failure to follow this Caution
could result in property damage or personal injury. Do not touch
the top of compressor.
WARNING: BRAZING REQUIRED
Failure to inspect lines or use proper service tools may result in
equipment damage or personal injury.
All outdoor unit and evaporator coil connections are
copper-to-copper and should be brazed with a
phosphorous-copper alloy material such as Silfos-5 or
equivalent. Do not use soft solder.
CAUTION: CONTAINS REFRIGERANT
Failure to follow proper procedures can result in personal illness
or injury or severe equipment damage. System contains oil and
refrigerant under high pressure. Recover refrigerant to relieve
pressure before opening system.
CAUTION: GROUNDING REQUIRED
Failure to inspect or use proper service tools may result in
equipment damage or personal injury. Reconnect all grounding
devices. All parts of this product that are capable of conducting
electrical current are grounded. If grounding wires, screws,
straps, clips, nuts or washers used to complete a path to ground
are removed for service, they must be returned to their original
position and properly fastened.
WARNING: SERVICE VALVES
Failure to follow this warning will result in abrupt release of
system charge and may result in personal injury and/or property
damage. Extreme caution should be exercised when opening the
Liquid Line Service Valve. Turn valve stem counterclockwise only
until the stem contacts the rolled edge. No torque is required.
This document contains a wiring diagram and service information.
1
All phases of this installation must comply with NATIONAL, STATE, AND
LOCAL CODES.
