Honeywell Home TC500A Sylk Commercial Thermostat

Warranty

5 years

Thermostat Capabilities

Communication

24V commercial controller with proprietary Sylk sensor bus; native BACnet (IP and MS/TP) for BMS; Wi-Fi/Bluetooth for app

Communicating Compatibility

Sylk-bus Honeywell sensors/accessories; integrates into any BACnet building automation system (BTL-listed)

C-Wire

C-wire / 24VAC required (UL Class-2 transformer); not power-stealing — commercial RTU/AHU controller

Voice Assistants

none

Zoning

none (single-zone RTU/AHU/heat-pump controller; 5H/3C heat pump, 3H/4C conventional)

IAQ Sensors

Built-in temperature, humidity, and proximity (occupancy) sensors; remote temp/space sensors via Sylk bus and universal inputs (NTC10K/NTC20K/C7021/C7023/C7041); 0-10V and dry-contact inputs

Geofencing

no

BMS / BACnet

Native BACnet IP and BACnet MS/TP; BACnet Testing Labs (BTL) listed; integrates directly into building automation/BMS systems

Dealer Portal

Honeywell Connect Me mobile app (Honeywell Connect) — gives authorized users remote access to manage TC500 thermostats across commercial buildings

Pro Features

Multi-level user privilege access; remote monitor/schedule/override via Honeywell Connect Me app or BACnet; Service mode to manually command outputs and test mechanical equipment; commercial control algorithms (auto changeover, scheduled purge, PID tuning, CPH, OAT/DAT lockout, demand limit control, freeze protection, smoke monitor); Wi-Fi/MS-TP firmware upgrade