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Honeywell TC320B-G Field-Selectable BACnet MS/TP or BACnet IP - Field-Selectable BACNet MS/TP or BACNET IP Protocol
HoneywellField-Selectable BACNet MS/TP or BACNET IP Protocol

Honeywell TC320B-G Field-Selectable BACnet MS/TP or BACnet IP

The Honeywell TC320B-G is a field-selectable BACnet MS/TP or BACnet IP thermostat controller designed for 4-pipe fan coil units. It operates at 24V and supports On/Off, Floating, Modulating, or 6-Way valves, with 3…

SKU 3G-OTH-69102

Also listed as: TC320BG · TC320B G

Brand
Honeywell
Item
TC320B-G Field-Selectable BACnet MS/TP or BACnet IP
Part Number
TC320B-G
Category
Field-Selectable BACNet MS/TP or BACNET IP Protocol
Available to Order
Also known as:TC320B-GHoneywell
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Technical specs
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Compliance & shipping

Hazardous material
Not classified as hazardous
California Prop 65 warning
No warning recorded
Licence required
No licence required
Safety Data Sheet
Not available
Special shipping
Ships under standard freight

Technical Specifications

Honeywell
Manufacturer Part Number
TC320B-G
Type
On/Off (Cool)/On/Off (Heat), Gray
Wireless
No
Mfr. Model
TC320B-G
Overall Width
3-15/16
Contact Rating
20 to 30V
Overall Height
4-1/2
Number of Pipes
2;
Terminal Designations
C; COM; DIO1; DIO2; DO1; DO2; DO3; R; UIO1; UIO2;
Number of Relay Inputs
5
Maximum Operating Humidity
90
Minimum Operating Humidity
10
Maximum Temperature Control
122
Maximum Operating Temperature
122
Minimum Operating Temperature
32
Number of Relay Inputs/Outputs
3 DO/2 DIO/3
Number of Cooling Stages - Heat Pump System
1
Number of Heating Stages - Heat Pump System
2
Number of Cooling Stages - Conventional System
1
Number of Heating Stages - Conventional System
1
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Honeywell Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Honeywell TC320B-G is a field-selectable BACnet MS/TP or BACnet IP thermostat controller designed for 4-pipe fan coil units. It operates at 24V and supports On/Off, Floating, Modulating, or 6-Way valves, with 3 DO/2 DIO/3 UIO relay inputs/outputs. The controller includes a dry contact occupancy sensor and provides On/Off temperature adjustment for cooling, along with humidification and dehumidification control.

Frequently Asked Questions

What is the Honeywell TC320B-G thermostat controller used for?

The Honeywell TC320B-G is a field-selectable BACnet MS/TP or BACnet IP thermostat controller designed for 4-pipe fan coil units. It manages On/Off cooling and heating, plus humidification and dehumidification control, making it suitable for commercial HVAC systems requiring precise zone temperature and humidity regulation.

What are the specifications of the Honeywell TC320B-G?

The Honeywell TC320B-G operates at 24 V and supports On/Off, Floating, Modulating, or 6-Way valves. It includes 3 DO/2 DIO/3 UIO relay inputs/outputs, a dry contact occupancy sensor, and provides On/Off temperature adjustment for cooling. Housing color is gray, and it offers both humidification and dehumidification control.

Where to buy the Honeywell TC320B-G worldwide?

3G Electric supplies the Honeywell TC320B-G thermostat controller worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this BACnet MS/TP or BACnet IP controller for 4-pipe fan coil units.

How to install the Honeywell TC320B-G thermostat controller?

Install the Honeywell TC320B-G by mounting it on a standard electrical box, connecting 24 V power, and wiring the 3 DO/2 DIO/3 UIO relay outputs to your 4-pipe fan coil unit. Configure the field-selectable BACnet MS/TP or BACnet IP protocol via the onboard interface. Always follow local electrical codes and the manufacturer's installation manual.

Used in

Common applications for Honeywell
Commercial kitchen and inflight-catering steam boilers — RM7890 / RM7895 flame relays with UV detection
Food-processing ramp-and-dwell ovens — DBC2000E / DBC2100E controllers
Hotel and hospital boiler plants — VR8205 combination gas controls
Petrochemical tank-farm heating — V4xxx gas-valve bodies with ML7420 actuators
Retrofit swap-outs from legacy Fireye / Satronic — Honeywell replacement kits
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Honeywell Products

3G Electric supplies Honeywell field-selectable bacnet ms/tp or bacnet ip protocol. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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