JOHNSON CONTROLS
18
Form 150.63-NM9
Issue date: 5/20/2021
SECTION 2 – PRODUCT DESCRIPTION
Accessories and options
Electrical Options
Compressor Power Connections
Single-point terminal block connection(s) are provid-
ed as standard. The following power connections are
available as factory mounted options. See Electrical
Data on page 47 for specific voltage and options
availability.
Single-Point Supply Terminal Block
(standard on YCUL models).
Includes enclosure, terminal-block and interconnecting
wiring to the compressors. Separate external protection
must be supplied, by others, in the incoming compres-
sor-power wiring. This option cannot be included if
either the Single Point Non-Fused Disconnect Switch
or Single-Point Circuit Breaker options have been in-
cluded.
Single-Point Non-Fused Disconnect Switch
Unit-mounted disconnect switch with external, lock-
able handle in compliance with Article 440-14 of
N.E.C., can be supplied to isolate the unit power volt-
age for servicing. Separate external fusing must be
supplied, by others in the power wiring, which must
comply with the National Electrical Code and/or local
codes.
Single-Point Circuit Breaker
A unit mounted circuit breaker with external, lockable
handle (in compliance with N.E.C. Article 440-14),
can be supplied to isolate the power voltage for servic-
ing. This option includes the Single-Point Power con-
nection.
Control Transformer
This transformer converts unit power voltage to
115-1-60 (0.5 KVA or 1.0 KVA capacity). Factory
mounting includes primary and secondary wiring be-
tween the transformer and the control panel.
Power Factor Correction Capacitors
These factory mounted capacitors will correct unit
compressor to a power factor between 0.90 and 0.95.
Control Options
Ambient Kit (Low)
Units will operate to 25°F (-4°C). This factory mount-
ed accessory includes all necessary components to
permit chiller operation to 0°F (-18°C). This option
includes the Discharge Pressure Transducer / Readout
Capability option. For probeforehead pressure control
in applications below 25°F (-4°C), where wind gusts
may exceed five mph, it is recommended that factory
mounted optional Condenser Louvered Enclosure Pan-
els also be included.
Ambient Kit (High)
This factory mounted kit is required if units are to op-
erate when the ambient temperature is above 110°F
(43°C) and includes discharge pressure transducers.
This option includes the factory mounted Discharge
Pressure Transducer / Readout Capability option.
Building Automation System Interface
The factory addition of a Printed Circuit Board to ac-
cept a 4 mA to 20 mA, 0 VDC to 10 VDC or contact
closure input to reset the leaving chiller liquid tempera-
ture from a Building Automation System. Only one of
following options can be offered on a unit at a time:
BAS, Remote Control Panel or Multi-Unit Sequence
Control (Factory-Mounted). The standard unit capa-
bilities include remote start/stop, remote discharge air
temperature reset through a PWM input signal, or up
to two steps of demand (load) limiting depending on
model. The standard control panel can be directly con-
nected to a Johnson Controls Building Automated Sys-
tem via the standard onboard RS485 communication
port.
Language LCD and Keypad Display
Spanish, French, and German unit LCD controls and
keypad display are available; however the standard
language is English.
Discharge Pressure Transducers and
Readout Capability
The addition of factory mounted pressure transducers
allows models to sense and display discharge pressure.
This is recommended for brine chilling applications.
This option is included with either the low or high am-
bient kits.
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