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Base Product Type
Y = YORK
V= Variable Speed Screw
AA = Air Cooled Design Series
Frame Size
Configuration
3 = Condenser Code
X = Evaporator Code
X = Compressor Code
X = Condenser Fan & Sound Kit Code
The Control/VSD Cabinet contains lethal
high AC and DC voltages. Before per-
forming 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 dis-
charge the filter capacitors.
NEVER place loose tools, debris, or any
objects inside the Control Panel/VSD
Cabinet.
ASHRAE
4
UNIT NOMENCLATURE
YVAA
021
3AXX
90.1
Compliant
46
A
A
Level / Refrigerant
A = Refrigerant R-134a
B = Refrigerant R-513A
Development Level
(Engineering Change
or PIN)
Voltage
17 = 200 / 3 / 60
28 = 230 / 3 / 60
40 = 380 / 3 / 60
42 = 400 / 3 / 60
46 = 460 / 3 / 60
50 = 380-415 / 3 / 50
58 = 575 / 3 / 60
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 supply-
ing 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.
Form 201.28-NM1.1
Issue date: 08/06/2021
LD23523a
Products are produced at a
f a c i l i t y w h o s e q u a l i t y -
management systems are
ISO9001 certified.
JOHNSON CONTROLS
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