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FORM 150.67-EG1 (219)
JOHNSON CONTROLS
99
2. Remote water temperature reset via a Pulse Width Modulated (PWM) input signal
or up to two steps of demand (load) limiting.
3. Software stored in non-volatile memory, with programmed setpoints retained in lith-
ium battery backed real time clock (RTC) memory for minimum 5 years.
4. Forty character liquid crystal display, descriptions in English (or Spanish, French,
Italian, or German), numeric data in English (or Metric) units. Sealed keypad with
sections for Setpoints, Display/Print, Entry, Unit Options & clock, and On/Off Switch.
5. Programmable Setpoints (within Manufacturer limits): display language; chilled
liquid temperature setpoint and range, remote reset temperature range, set daily
schedule/holiday for start/ stop, manual override for servicing, low and high AMBI-
ENT °Cutouts, number of compressors, low liquid temperature cutout, low suction
pressure cutout, high discharge pressure cutout, anti-recycle timer (compressor
start cycle time), and anti-coincident timer (delay compressor starts).
6. Display Data: Return and leaving liquid temperatures, low leaving liquid tempera-
ture cut out setting, low ambient temperature cutout setting, outdoor air tempera-
ture, English or metric data, suction pressure cutout setting, each system suction
pressure, discharge pressure (standard on YCAL0019-0066 models), liquid tem-
perature reset via a Johnson Controls ISN DDC or Building Automation System (by
others) via PWM input as standard or a 4-20milliamp or 0- 10 VDC input or contact
closure with optional BAS interface, anti-recycle timer status for each compressor,
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 definition, compressor starts/operating
hours (each), status of hot gas valves, evaporator heater and fan operation, run
permissive status, number of compressors running, liquid solenoid valve status,
load & unload timer status, water pump status.
7. System Safeties: Shall cause individual compressor systems to perform auto shut
down; manual reset required after the third trip in 90 minutes. Includes: high dis-
charge pressure, low suction pressure, high pressure switch, and motor protector.
Compressor motor protector shall protect against damage due to high input current
or thermal overload of windings.
8. Unit Safeties: Shall be automatic reset and cause compressors to shut down if
low ambient, low leaving chilled liquid temperature, under voltage, and flow switch
operation. Contractor shall provide flow switch and wiring per chiller manufacturer
requirements.
9. Alarm Contacts: Low ambient, low leaving chilled liquid temperature, low voltage,
low battery, and (per compressor circuit): high discharge pressure, and low suction
pressure.
H. Manufacturer shall provide any controls not listed above, necessary for automatic
chiller operation. Mechanical Contractor shall provide field control wiring necessary to
interface sensors to the chiller control system.
Guide Specifications (Cont'd)
Содержание YCAL Series
Страница 4: ...JOHNSON CONTROLS FORM 150 67 EG1 219 4 THIS PAGE INTENTIONALLY LEFT BLANK...
Страница 47: ...FORM 150 67 EG1 219 JOHNSON CONTROLS 47 Unit Dimensions Cont d YCAL0028 LD18674...
Страница 55: ...FORM 150 67 EG1 219 JOHNSON CONTROLS 55 45 1 8 18 1 2 LD18682 Unit Dimensions Cont d YCAL0052...
Страница 57: ...FORM 150 67 EG1 219 JOHNSON CONTROLS 57 Unit Dimensions Cont d YCAL0056 45 1 8 16 3 4 LD18684...
Страница 63: ...FORM 150 67 EG1 219 JOHNSON CONTROLS 63 Unit Dimensions Cont d YCAL0022 SI LD18692...
Страница 73: ...FORM 150 67 EG1 219 JOHNSON CONTROLS 73 Unit Dimensions Cont d YCAL0052 SI 424 LD18702...
Страница 88: ...JOHNSON CONTROLS FORM 150 67 EG1 219 88 Power Wiring Single Circuit ld18707...
Страница 89: ...FORM 150 67 EG1 219 JOHNSON CONTROLS 89 Power Wiring Single Circuit Cont d...
Страница 90: ...JOHNSON CONTROLS FORM 150 67 EG1 219 90 Power Wiring Single Circuit Cont d...
Страница 91: ...FORM 150 67 EG1 219 JOHNSON CONTROLS 91 LD18746 Power Wiring Dual Circuit...
Страница 92: ...JOHNSON CONTROLS FORM 150 67 EG1 219 92 Factory wired with optional transformer LD03611 Control Wiring...