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WARNING
MAGNETIC FIELD HAZARD
Units equipped with the permanent magnet motor option
contain rotors with powerful magnetic fields. Permanent
magnet motor rotors, when removed from the stator, expose
surrounding personnel and equipment to powerful magnetic
fields which may cause serious health hazards to persons with
pacemakers or defibrillators, hearing aids, metal implants, or
other implanted electronic medical devices, and may impact
other electronic devices such as mobile phones or
smartwatches, watches, credit cards, etc. Persons in a risk
group should consult a physician prior to compressor
disassembly. Failure to follow these procedures may result in
personal injury or death.
WARNING
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 system
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. Refrigerant 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 gage for how
much oil to add to the system.
e. Carefully un-sweat remaining tubing stubs when neces-
sary. Oil can ignite when exposed to torch flame.
Failure to follow these procedures may result in personal inju-
ry or death.
CAUTION
Standard Tier units (units with S in the 10th position of the
model number) without condenser fan VFDs (units with “-”,
“1”, “3”, or “5” in the 13th position of the model number)
must have the condenser fan(s) rotation verified to ensure
proper phasing. Correct rotation is counter-clockwise (refer-
ence arrow on fan cap). Swap any two incoming power leads
to correct condenser fan rotation before starting chiller. Oper-
ating the unit without testing the condenser fan(s) for proper
phasing could result in equipment damage.
CAUTION
This unit uses a microprocessor control system. Do not short
or jumper between terminations on circuit boards or modules;
control or board failure may result.
Be aware of electrostatic discharge (static electricity) when
handling or making contact with circuit boards or module con-
nections. Always touch a chassis (grounded) part to dissipate
body electrostatic charge before working inside control center.
Use extreme care when handling tools near boards and when
connecting or disconnecting terminal plugs. Circuit boards can
easily be damaged. Always hold boards by the edges and
avoid touching components and connections.
This equipment uses, and can radiate, radio frequency energy.
If not installed and used in accordance with the instruction
manual, it may cause interference to radio communications. It
has been tested and found to comply with the limits for 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. Operation of this equipment in a
residential area is likely to cause interference, in which case
the user, at his own expense, will be required to take whatever
measures may be required to correct the interference.
Always store and transport replacement or defective boards in
anti-static shipping bag.
CAUTION
To prevent potential damage to heat exchanger tubes, always
run fluid through heat exchanger when adding or removing re-
frigerant charge. Use appropriate antifreeze solutions in evapo-
rator fluid loop to prevent the freezing of heat exchanger or in-
terconnecting piping when the equipment is exposed to tem-
peratures below 32°F (0°C). Proof of flow switch is factory
installed on all models. Do NOT remove power from this
chiller during winter shut down periods without taking precau-
tion to remove all water from heat exchanger. Failure to prop-
erly protect the system from freezing may constitute abuse and
may void warranty.
CAUTION
DO NOT re-use compressor oil or any oil that has been ex-
posed 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 com-
pleted. Failure to follow these procedures may result in dam-
age to equipment.
