York YCUL0016 - Manual (Page 5)

YORK INTERNATIONAL 4 YORK INTERNATIONAL 5
FORM 150.63-EG1
MILLENNIUM CONTROL CENTER
All controls are contained in a NEMA 3R/12 (and
equivalent to IP55*) cabinet with hinged outer door
and includes:
Liquid Crystal Display with Light Emitting Diode
backlighting for outdoor viewing:
Two display lines
Twenty characters per line
Color coded 12-button non-tactile keypad with sections
for:
DISPLAY/PRINT of typical information:
Suction temperatures (optional)
Ambient temperature
System pressures (each circuit)
Operating hours and starts (each compressor)
Print calls up to the liquid crystal display:
Operating data for the systems
History of fault shutdown data for up to
the last six fault shutdown conditions
An RS-232 port, in conjunction with this
press-to-print button, is provided to permit
the capability of hard copy print-outs via a separate
printer (by others).
ENTRY section to:
ENTER setpoints or modify system values
SETPOINTS updating can be performed to:
Suction pressure setting
Suction pressure control zone
Remote reset temperature range
Set daily schedule/holiday for start/stop
Manual override for servicing
Low and high ambient cutouts
Number of compressors
Low suction pressure cutout
High discharge pressure cutout
Anti-recycle timer (compressor start cycle time)
Anti-coincident timer (delay compressor starts)
UNIT section to:
Set clock
Set options
• Set unit option
• Set unit control for Discharge Air Temperature
Control or for Suction Pressure Control (requires
Suction Pressure Transducers – standard on
YCUL 0076 - 0130 and optional on YCUL0016
- 0066.
UNIT ON/OFF switch
The microprocessor control center is capable of
displaying the following:
• Suction temperatures (optional)
• Low ambient temperature cutout setting
• Outdoor air temperature
• English or Metric data
• Suction pressure cutout setting
• Each system suction pressure (optional on 0016
- 0066 models and standard on 0076 - 0130
models)
• System discharge pressure (optional on 0016 - 0090
models and standard on 0096 - 0130 models)
• Discharge Air Temperature Reset via a YORK ISN
DDC or Building Automation System (by others)
via:
- a pulse width modulated (PWM) input as stan-
dard
- a 4-20 milliamp or 0 -10 VDC input, or contact
closure 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
(Discharge Air Temperature control only)
• Automatic lead/lag of compressors within a system
• Compressor starts & operating hours
(each compressor)
• Status of hot gas valves, and fan operation
• Run permissive status
• Number of compressors running
• Liquid solenoid valve status
• Load & unload timer status