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NOTE: Take notice of the following symbols, which are required
for A2L refrigerants and can be found on the unit:
SYMBOL
IEC 60417-5032 (2002-10)
IEC 60417-5019 (2006-8)
IEC 60417-5018 (2006-10)
ISO 7000-0434A (2004-01)
ISO 7000-0790 (2004-01)
IEC 60417-5036 (2002-10)
GHS02: Flammable
ISO 7010-W021 (2011-05)
ISO 7000-1659 (2004-01)
ISO 7000-1701 (2004-01)
ISO 7000-1641 (2004-01)
WARNING
Electrical shock can cause personal injury and death. Shut off
all power to this equipment during installation. There may be
more than one disconnect switch. Tag all disconnect locations
to alert others not to restore power until work is completed.
IMPORTANT: This equipment generates, uses, and can radiate
radio frequency energy and, if not installed and used in
accordance with these instructions, may cause radio
interference. It has been tested and found to comply with the
limits of a Class A computing device pursuant to International
Standard in North America EN 61000-2/3, which are designed
to provide reasonable protection against such interference
when operated in a commercial environment.
CAUTION
This system uses an A2L refrigerant (R-32) which have
higher pressures than R-22 and other refrigerants. No other
refrigerant can be used in this system. Failure to use gauge
set, hoses, and recovery systems designed to handle
refrigerant R-32 may result in equipment damage or
personal injury. Refer to section "Check Refrigerant
Circuit" on page 48 for guidelines on proper A2L
refrigerant handling and equipment used for A2L
refrigerant. If unsure about equipment, consult the
equipment manufacturer.
CODE
MEANING
Alternating current
Protective earth
Functional earthing
Caution
Read operator's
manual
Dangerous voltage
Flammable gas
Warning: flammable
materials
Service indicator:
read technical
manual
Pressure
Operator's manual:
operating
instructions
DO NOT USE TORCH to remove any component. System
contains oil and refrigerant under pressure.
To remove a component, wear protective gloves and goggles
and proceed as follows:
a. Shut off electrical power to unit.
b. Recover refrigerant to relieve all pressure from sys-
tem using both high-pressure and low pressure ports.
c. Traces of vapor should be displaced with nitrogen
and the work area should be well ventilated. Refrig-
erant in contact with an open flame produces toxic
gases.
d. Cut component connection tubing with tubing cutter
and remove component from unit. Use a pan to catch
any oil that may come out of the lines and as a gauge
for how much oil to add to the system.
e. Carefully unsweat remaining tubing stubs when nec-
essary. Oil can ignite when exposed to torch flame.
Failure to follow these procedures may result in personal
injury or death.
DO NOT re-use compressor oil or any oil that has been
exposed to the atmosphere. Dispose of oil per local codes and
regulations. DO NOT leave refrigerant system open to air any
longer than the actual time required to service the equipment.
Seal circuits being serviced and charge with dry nitrogen to
prevent oil contamination when timely repairs cannot be
completed. Failure to follow these procedures may result in
damage to equipment.
DO NOT use means to accelerate the defrosting process, or to
clean, other than those recommended by the manufacturer.
If unit is to be stored, it shall be stored in an area or room
without continuously operating open flames (for example, an
operating gas appliance) or other potential ignition sources,
such as operating electric heaters or hot surfaces.
Do not pierce or burn.
Be aware that refrigerants may not contain an odor.
INSTALLATION
Storage Recommendations
The 30RC air-cooled chillers are designed for outdoor installa-
tions. At times, a delay in construction or other factors require that
a unit be stored for a period of time prior to installation. The fol-
lowing guidelines should be used for unit storage.
PROVIDE MACHINE PROTECTION
Place and store the unit in an area that will protect it from vandal-
ism, accidental contact with vehicles, falling debris or construction
waste. Ideally, do not remove the shipping protection such as the
coil protectors. This will provide additional protection for the unit.
The unit should be stored outdoors.Unit must not be stored or in-
stalled within 20 ft of any opening to a building.
EVAPORATOR PROTECTION
It is important to treat the evaporator and associated piping and
pumps to prevent corrosion and/or freezing. The unit should be
shipped with a small amount of an inhibited glycol solution to
2
WARNING
CAUTION
WARNING
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