York YVAA Installation Operation & Maintenance page 14

SECTION 1 - GENERAL CHILLER INFORMATION AND SAFETY
Refrigerants and oils
Refrigerants and oils used in the unit are generally non-
toxic, non-flammable and non-corrosive, and pose no
special safety hazards. Use of gloves and safety glass-
es is, however, recommended when working on the
unit. The buildup of refrigerant vapor, from a leak for
example, does pose a risk of asphyxiation in confined
or enclosed spaces and attention should be given to
good ventilation.
Use only the refrigerant specifically designated for the
unit. Any other type of refrigerant may cause damage
to the equipment and voids the warranty.
High temperature and pressure cleaning
High temperature and pressure cleaning methods, for
example steam cleaning, must not be used on any part
of the pressure system as this may cause operation of
the pressure relief devices. Detergents and solvents,
which may cause corrosion, must also be avoided.
Emergency shutdown
In case of emergency, the control panel is fitted with an
incoming supply circuit breaker with a red and yellow
handle which can be used as the emergency stop de-
vice. When operated it removes the electrical supply to
the inverter, fans, and control circuit which shuts down
the unit.
MSDS information
Manufacturer Safety Data Sheets (MSDS) information
can be obtained by calling (800) 451-8346 in the U.S.
or by emailing SDS@verisk3e.com. Provide the prod-
uct name, manufacturer, part number, and the specific
language required. For additional safety information,
https://my.jci.com/sites/BE/NASafety.
refer to
Generator Operation
The variable speed drive can operate on a generator,
provided that the generator's output voltage can be
maintained within the voltage specifications for the
drive. When switching from utility power to genera-
tor power, a minimum of a 10 second delay must be
provided. This same delay is required when switching
power back from generator power to utility power, un-
less a synchronized transfer system is used.
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Safety labels
White symbol on blue background.
For safe operation, read the Instructions
first.
Black symbol on yellow background.
Warning: This machine may start auto-
matically without prior warning.
Black symbol on yellow background.
Warning: Hot surface.
Black symbol on yellow background.
Warning: Safety relief valve may dis-
charge gas or liquid without prior warning.
Black symbol on yellow background.
Warning: Isolate all electrical sources of
supply before opening or removing the
cover, as lethal voltages may exist.
Black symbol on yellow background.
General attention symbol.
Black symbol on yellow background.
Warning: On isolating the supply it may
take up to 300 seconds for the capacitor
voltage to fall below 50 V.
Form 201.47-ICOM1
Issue date: 17/11/2022
JOHNSON CONTROLS