Field Instruments

General

TB3 Series Fan Coil Thermostats used in individual rooms or zones in buildings. It is designed for two and four pipe fan coil units. TB3 Series has one universal input as external sensor or open/close contact input, three relay outputs, two analogue outputs and one EIA-485(BACnet MS/TP). It controls the fan coil unit depending on the internal room sensor or external return sensor temperature.

Features:

• Manual or automatic 3-speed fan control
• Proportional heating/cooling valves
• Auto, Heat, Cool and Ventilation modes
• Manual or automatic heating/cooling changeover
• Universal input for external sensor or windows/energy saving contact etc.
• Automatic heating/cooling changeover via changeover sensor  
• User setpoint limitation
• Clock and time schedule functions
• Key lock
• Configurable user parameters
• BACnet MS/TP communication
• Modern styling and capacitive touch buttons
• Blue backlight LCD
• Different colour options; black and white
• EU box flush-mount

Specifications

• Make : Honeywell
• Model: TB3240W/U
• Operating Voltage: 24 V AC/DC 50/60Hz
• Color: White
• Power Consumption: Max ~3.0 VA
• Electrical Connection: Terminal Connectors
• Battery for Real Time Clock (RTC): Lithium CR1220 3.3V
• Inputs: 1 Universal Input (NTC 10K or Dry Contact)
• Outputs: 3 Digital Outputs (3 x 5 (2) A Relay) 2 Analog Outputs (0-10V)
• Communication: 1 x EIA-485(BACnet MS/TP)
• Temperature Setting: 5°C … 40°C (Adjustable) (41°F … 104°F (Adjustable)
• Dimensions: 86 x 86 x 52 mm
• Mounting: Flush Mounted (Standard EU box)

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