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TB3 SERIES COMMUNICATING THERMOSTATS INSTALLATION INSTRUCTIONS
3
31-00576-01
PRODUCT SPECIFICATION
Network Security
Honeywell hereby expressly states that the TB3 Series
Communication Thermostat are not inherently
protected against all cyber-security risks from the
Internet and are thus intended solely for use in private
or protected networks.
BACNET and Modbus protocols are open standards
with no security.
Table 1 Display
Parameter
Specification
Display Type
LCD 62 x 44 mm
Backlight
White LED
Buttons
5 integrated capacitive touch areas
Fascia
Tempered glass
Table 2 Communication
Parameter
Specification
Communication 1 x EIA-485(BACnet MS/TP)
TIA/EIA 485 Cabling specifications
An MSTP EIA-485 network shall use shielded, twisted
pair cable. It means the cable is wrapped with a foil or
braided copper shield throughout its entire length. By
connecting the shield to a single ground point,
induced transients should often be reduced and
directed to ground.
Recommendation :
Wire Size
: 22-24 AWG
Cable Type
: Twisted-pair, copper wire, tinned
Shield
: Braid
Nominal Impedance
: 100-120 Ohms
Table 3 Electrical
Parameter
Specification
Power Supply
TB3240B/TB3240W : 24V AC/DC,
50/60 Hz
TB3140B/TB3140W : 100~220 VAC,
50/60 Hz
Power
Consumption
(Display ON)
Max ~3.0 VA
Terminal Size
For Power: Up to 16 AWG / 1.5 mm
2
For RS485 and NTC: Up to 17 AWG /
1 mm
2
Battery for Real
Time Clock (RTC) Lithium CR1220 3.3 V
Table 4 Sensors and Inputs
Parameter
Specification
Temperature
Accuracy
1 °C (1.8 °F)
UI Input
Measuring
Range
-10 °C to 100 °C (14 °F to 212 °F)
Inputs
1 Universal Input (NTC 10K or Dry
Contact)
Outputs
3 Digital Outputs (3 Relay*)
2 Relay Valve Outputs (2 Relay*)
(TB3140)
2 Analog Outputs (2 x 0-10 V)
(TB3240)
(*) 5A for resistive loads and 2A for
inductive loads
Table 5 Operating Environment
Parameter
Specification
Operating
Temperature
Range
10 °C to 55 °C (50 °F to 131 °F)
Temperature
Setting
5 °C to 40 °C (Adjustable),
(41 °F to 104° F (Adjustable)
Table 6 Other Specifications
Parameter
Description
IP Rating
IP30
Terminal
Connections
Rising cage clamp, Screw terminal
Standard and
Compliance
CE, RoHS, BTL certified (B-ASC)
Material of
Casing
Flame retardant ABS and
Polycarbonate (PC)
Table 7 Weight and Dimensions
Parameter
Specification
Dimension (L x W x D) 86 x 86 x 52 mm
Weight
TB3140 : 208 grams
TB3240 : 207 grams
Minimum depth of
Wall box
52 mm
Mounting
Flush Mounted (Standard EU
box)
Table 4 Sensors and Inputs
Parameter
Specification