York YCAL0043 Installation Operation & Maintenance

JOHNSON CONTROLS
17
SECTION 2 – PRODUCT DESCRIPTION
FORM 150.67-NM2
ISSUE DATE: 01/31/2019
2
UNIT ON/OFF switch
The microprocessor control center is capable of dis-
playing the following:
• Return and leaving liquid temperature
• Low leaving liquid temperature cutout setting
• Low ambient temperature cutout setting
• Outdoor air temperature
• English or Metric data
• Suction pressure cutout setting
• Each system suction pressure
• Discharge pressure (optional)
• Liquid Temperature Reset via a YORK ISN DDC
or Building Automation System (by others) via:
• a pulse width modulated (PWM) input as
standard.
• a 4-20 milliamp or 0 -10 VDC input with the
optional B.A.S. interface option.
• Anti-recycle timer status for each system
• Anti-coincident system start timer condition
• Compressor run status
• No cooling load condition
• Day, date and time
• Daily start/stop times
• Holiday status
• Automatic or manual system lead/lag control
• Lead system denition
• Compressor starts and operating hours (each com-
pressor)
• Status of hot gas valves, evaporator heater and fan
operation
• Run permissive status
• Number of compressors running
• Liquid solenoid valve status
• Load and unload timer status
• Water pump status
* Intensity of Protection European Standard
** International Electrotechnical Commission
Provisions are included for: pumpdown at shutdown;
optional remote chilled water temperature reset and
two steps of demand load limiting from an external
building automation system. Unit alarm contacts are
standard.
The operating program is stored in non-volatile mem-
ory (EPROM) to eliminate chiller failure due to AC
powered failure/battery discharge. Programmed set-
points are retained in lithium battery-backed RTC
memory for 5 years minimum.
POWER PANEL
Each panel contains:
• Compressor power terminals
• Compressor motor starting contactors per l.E.C.**
• Control power terminals to accept incoming for
115-1-60 control power
• Fan contactors and overload current protection
The power wiring is routed through liquid-tight con-
duit to the compressors and fans.
ACCESSORIES AND OPTIONS
Power Options
COMPRESSOR POWER CONNECTION – Sin-
gle-point (YCAL0019-0066) terminal block connec-
tion is provided as standard. The following power con-
nections are available as options. (See electrical data
for specific voltage and options availability) (Factory-
Mounted).
SINGLE-POINT SUPPLY TERMINAL BLOCK –
(standard on YCAL0019 – 0066 models) Includes en-
closure, terminal-block and interconnecting wiring to
the compressors. Separate external protection must be
supplied, by others, in the incoming compressor-power
wiring. (Do not include this option if either the Single-
Point Non-fused Disconnect Switch or Single-Point
Circuit Breaker options have been included).
SINGLE-POINT NON-FUSED DISCONNECT
SWITCH – Unit-mounted disconnect switch with
external, lockable handle (in compliance with Article
440-14 of N.E.C.), can be supplied to isolate the unit
power voltage 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.

York YCAL0043 Specifications

General

Brand	York
Model	YCAL0043
Category	Chiller
Language	English