Specifications

3
JOHNSON CONTROLS
Form 201.28-NM1.EN.PED/CE (0211)
In complying with Johnson Controls policy for continuous
product improvement, the in for ma tion con tained in this
document is subject to change without notice. While
Johnson Controls makes no com mit ment to update or
provide current information au to mat i cal ly to the manual
owner, that information, if ap pli ca ble, can be ob tained
by con tact ing the nearest Johnson Controls Engineered
Systems Service office.
The Control/VSD Cabinet contains lethal
high AC and DC voltages. Before
performing service inside the cabinet,
remove the AC supply feeding the chiller
and verify using a non-contact voltage
sensor.
The DC voltage on the VSD DC Bus will
take 5 minutes to bleed off, after AC power
is removed. Always check the DC Bus
Voltage with a Voltmeter to assure the
capacitor charge has bled off before
working on the system.
NEVER short out the DC Bus to discharge
the fi lter capacitors.
NEVER place loose tools, debris, or any
objects inside the Control Panel/VSD
Cabinet.
NEVER allow the Control Panel VSD
Cabinet doors to remain open if there is a
potential for rain to enter the panel. Keep
doors closed and assure all latches are
engaged on each door unless the unit is
being serviced.
ALWAYS lockout the disconnect supplying
AC to the chiller.
The 1L Line Inductor will reach operating
temperatures of over 150°C (300°F.) DO
NOT open panel doors during operation.
Assure the inductor is cool whenever
working near the inductor with power OFF.
It is the responsibility of operating/service personnel
to verify the ap pli ca bil i ty of these documents to the
equipment in question. If there is any question in the mind
of operating/service personnel as to the applicability of
these doc u ments, then prior to work ing on the equipment,
they should verify with the owner whether the equip ment
has been modified and if current literature is available.
CHANGEABILITY OF THIS DOCUMENT
ASSOCIATED LITERATURE
Manual Description Form Number
YVAA Frame Size 054 thru 098 50 Hz Renewal Parts Manual 201.28-RP1
Limited Warranty Engineered Systems Equipment 50.05-NM2