TCS SZ1025b VAV Box Controller
Micro VAV Controller
US$283.11
Availability:
In stock
SKU
SZ1025b
Description
The SZ1025b is a microprocessor-based controller designed for VAV terminal unit applications.
Features:
• Stand-alone or network operation
• Zigbee wireless ready
• Built-in velocity pressure sensor with K-factor correction
• Pressure dependent or pressure independent operation
• Capable of controlling series or parallel fan- powered boxes
• Offers two independent modulating outputs
• Adjustable P+I+D control of modulating outputs
• Interface available for tri-state actuator motors
• Separate heating and cooling minimum and maximum CFM settings
• Four independent dry contact outputs
• Remote setpoint capability
• Supply air sensor input
• Two independent digital Inputs
SPECIFICATIONS:
General Accuracy:+/- 0.5%
Programming:EIA RS485 interface
Display:32- Character LCD
Communications:RS485, half duplex
Memory backup:Non-volatile EEPROM, no battery required
EnvironmentalOperating temperature:32 to 131°F (0 to 55°C)
Operating humidity:0 to 100% RH,
non-condensing Storage temperature:14 to 140°F (-10 to 60°C)
Electrical Supply voltage:24 VAC
Inputs:Two platinum RTDs,Two digital (dry contact)
Range: Room Temp: 40 to 90°F
Supply Air Temp: 50 to 150°F
Outputs:Two 4 to 20 mA analog,Four digital (SPST dry contact, 24 VAC @ 2 A),QE25: four triacs (24 VAC @ .5 A)Max.
load resistance (analog output):600Ω
Common mode rejection:100 db @ 60 Hz
Power consumption:10 VA max
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