TCS BASYS SZ1025b VAV Box Controller

This highly configurable microprocessor-based controller is specifically designed for VAV terminal unit applications.

Specifications
Display32-Character LCD
Communications
RS485, half-duplex, TCSbus
Operating temperature32 to 131°F (0 to 55°C)
32 to 131°F (0 to 55°C)
Operating humidity0 to 100% RH, non-condensing
Supply voltage

24VAC

Independent Modulating Outputs

Two 
RTD InputsTwo platinum
  • Range: Room Temp: 40 to 90°F
  • Supply Air Temp: 50 to 150°F
Digital InputsTwo (dry contact)
Digital OutputsFour (SPST dry contact, 24 AC @ 2A)
Configurable Options

• Stand-alone or network operation 

• Built-in velocity pressure sensor with K-factor correction 

• Pressure-dependent or pressure-independent operation

• Capable of controlling series or parallel fan-powered boxes 

• Adjustable P+I+D control of modulating outputs

• Interface available for tri-state actuator motors

• Separate heating and cooling minimum and maximum CFM settings

• Remote setpoint capability 

• Supply air sensor input

Ordering Information


Part NoDescription
SZ1025bMicroprocessor-based VAV controller
SZ1025b Accessories
QE25Tri-state wiring transducer
TS2000Remote sensor, room mount
TS3000
Remote sensor, room mount, decorator style
TS2023a
An by Room mount temperature sensor with setpoint adjustment
TS1002
Remote sensor, duct mount
PR SeriesEncased relays
PT SeriesControl transformers
QD1010
RS232 to RS485 communications converter (required for programming)
QD2040Embedded site communications center
PX1060Digital Room mount temperature sensor with setpoint adjustment
2024 May 1st Nikita Patel

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