TCS Basys Controls SZ1143b, Product Manual

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2800 LAURA LANE • MIDDLETON, WI 53562 • (800) 288-9383 • FAX (608) 836-9044 • www.tcsbasys.com
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SZ1143b
General Purpose Controller
Product Manual
Description
The SZ1143b is a microprocessor-based general pur-
pose controller. Because it has four distinct control
sequences, it is designed for use in a wide variety of
applications. These applications are: general control,
remote setpoint control, general input reset ratio control
and differential input (i.e. temperature, pressure, humid-
ity, etc.) control.
Features
• Two 4 to 20 mA analog inputs suitable for a broad
variety of transducers
• Two digital inputs for switches, alarms, clocks, etc.
• One 4-20 mA modulating output
• Two relay outputs
• Adjustable P+I+D control on modulating output
• Adjustable offsets and differentials on relay outputs
• Application sequences include:
• Humidification
• Dehumidification
• Dew Point Control
• High/Low Signal Control
• Differential Temperature
• Differential Pressure
• Static Pressure
• Hot or Chilled Water
• Hot or Chilled Water Reset
• Stand-alone or network operation
Mounting
The SZ1143b is designed for mounting using two #10
sheet metal screws.
Contents
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Checkout & Troubleshooting . . . . . . . . . . . . . . . . . . . . 7
LED Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Communicating Thermostats
Communicating Thermostats