Accessory List

CP-8142-024
42
© Copyright 2006 TAC. All Rights Reserved. F-27382-1
TAC System 8000 Chiller Controller
Model Chart
Specifications
This chiller controller provides electronic control
for centrifugal chillers with electric or hydraulic
loading vane actuators.
Features:
• TAC System 8000 two input controller design.
• Precise zero droop control action.
• Auto ramp-up of chiller designed into unit.
• Motor current limit action for start-up.
• Standard auto/manual control switches.
• LED indication of control action.
• Standard TAC System 8000 track mounting.
• Excellent retrofit package for competitive hardware.
Model No.
Relay Contact Electrical Rating
Vac 50/60 Hz Contact VA Rating Inrush VA
CP-8142-024
120/240
N.O. or N.C.
125 1250
24 25 250
Inputs
Sensors TS-8000 (1000 ohm Balco), 1 or 2 required.
Current transformer 0.5 or 5 Vac.
Power demand control 15 to 2 Vdc (IV1), 10 to 2 Vdc (IV2).
Momentary contact closure Ramp-up reset (3 sec. min.).
Auxiliary voltage Remote temperature setpoint adjuster 2 to 15 Vdc (IO1).
Outputs
Relays
Two SPST time proportioned. Both factory set normally open (N.O.). Refer to Model Chart for contact
ratings.
Control voltage
Temperature: 2 to 15 Vdc (IO1).
Current indication: 0 to 10 Vdc (OP2).
Field Adjustments
Temperature
Chilled water supply setpoint (SPA): 35 to 70°F (2 to 21°C).
Chilled water return setpoint (SPB): 35 to 70°F (2 to 21°C).
Return water reset ratio: By jumper.
Sensitivity: By jumper.
Motor current
Maximum percent motor current: 30 to 100%.
Ramp-up start point: 0 to 100%.
Ramp-up time: 2 to 45 minutes.
Pulse rate adjustment Repeats per minute for corrective action on loading vane actuator.
Relay load and unload contact
adjustment
Either or both may be set normally closed.
Power requirements 24 Vac 50/60 Hz, 6 VA.
Power supplies available +20 Vdc, 35 mA; +6.2 Vdc, 4 mA.
CP
-
8142
-
0
ROLLER
ONTROL
42-024