York YCUL0016, YCUL0130 manual Millennium Control Center, Unit ON/OFF switch

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

YORK INTERNATIONAL 5