Honeywell TC500A Commercial Thermostat User Guide

Honeywell (31-00400M) TC500A Commercial Thermostat Manual

Table of content

  • Important Safety Information and Installation Precautions
  • Introduction
  • About TC500A Thermostat
  • Features
  • Intended audience and assumed knowledge
  • Reference documents
  • Abbreviation and Nomenclature
  • Conventions
  • Dimensions
  • Technical Specifications
  • Security requirement
  • Deployments and Maintenance Considerations
  • Getting started
  • TC500A Thermostat at a glance
  • Thermostat Display Overview
  • Presence detection
  • Home Page (Main Screen): Temperature reading and adjustment
  • Home Page (Right Screen): Quick access and device management
  • Home Page (Left Screen): Weather and sensor reading
  • Home screen icon overview
  • Smart LED indication
  • Initial Configuration
  • Prerequisites
    • Step 1. Selecting a language
    • Step 2. Choosing a configuration platform
    • Step 3. Configuration through thermostat touchscreen display
    • Step 4. Setting Installer Pin
    • Step 5. Connecting a thermostat
  • Basic Configuration
  • User Management
  • User Roles
  • Configuring the user roles
  • Managing Alarms
  • About Alarms
  • Alarm notification signs
  • Unacknowledged Alarms
  • List of Alarms and their severity
  • Managing Alarms
  • Scheduling
  • About Schedule
  • Setting up a Weekly Schedule
  • Setting up a Holiday Schedule
  • Resetting Schedule
  • Factory reset

About TC500A Thermostat

The TC500A Thermostat is an advanced, configurable, connected device for commercial buildings. It controls and monitors RTU, AHU, Heat Pump equipment, and their configurations. This device communicates over Wi-Fi, Bluetooth, BACnet IP
over Wi-Fi, BACnet RS485, Sylk to easily integrates with the building automation system. The built-in intelligent control algorithms of the device help to achieve the perfect balance between Energy Efficiency and Comfort. The device is packaged with numerous presets suitable for most commercial building requirements that enable the easy and quick initial setup.

The firmware of the device can be upgraded via Wi-Fi network. The device has four universal terminals and a pair of Sylk terminals to connect with sensors or other accessories. It also has a built-in temperature sensor, humidity sensor, and proximity sensor. 

TC500A Thermostat Features

  • The device can be easily commissioned through the TC500A Connect Mobile application.
  • Easily customizable and intuitive UI.
  • Supports BACnet system schedule and holiday configuration.
  • Multiple, configurable, levels of user privilege access for features such as Reminders, Occupancy set points, Date/Time, Schedules, Calendars of special events, remote and local Manual Override, remote and local Occupancy Override, Choice of language and units, and so on.
  • Multiple, configurable, screen lockouts to prevent unauthorized settings changes.
  • High level control algorithms such as Auto Changeover, Adaptive Intelligent Recovery, Pre-occupancy Purge, Power up disable time, Freeze protection, and Demand limit controls are supported.
  • Settings to switch Fahrenheit to Celsius and vice-versa.
  • Auto display sleep to save energy when there is no user action for configured time out.
  • A LED indicator to show the operational status of the thermostat when the display goes to sleep mode.
  • Real-Time Clock time keeping accuracy with 72 hour retention during power loss.

Honeywell TC500A Technical Specifications 

Power Characteristics

Table Power Characteristics

Power Supply

Rated voltage: 24VAC 50/60Hz,

Working voltage range: 20-30VAC, UL listed class-2 transformer or IEC 61558 listed transformer.

Power Consumption (Display ON)

Max. 8.5VA @ 24VAC (355mA @ 24VAC)

Min. Load

8VA (all BOs OFF)

Max. Load

96VA (all BOs ON)


Table Display

Display Type

24 BPP TFT display with CTP


480x480 pixel

Active Display Area

4” diagonally


LCD (Dimmable)

Operating Environment

Table Operating Environment

Ambient Operating Temperature

32 to 122 °F (0 to +50°C)

Ambient Operating Humidity

10 to 90% relative humidity (non-condensing)

Storage Temperature

-40 to 150 °F(-40 to 65.5°C)

Protection Class



Table Compliances


CE, FCC, ICES, UL/cUL, RoHs, REACH, Title 24, BTL, ASHRAE, LEED, and Prop65.


EN 60730-1, EN 60730-2-9, EN 301489-1, EN 301489-17, EN 300328, EN

301893, EN 62479, UL60730-1, UL60730-2-9, Title 47 part 15 subpart B, Title 47

part 15 subpart C, RSS 210, ICES-003

IO Characteristics

Table IO Characteristics

UIO x 2

Resistive Input

For 10K NTC type II, C7021 series For 10K NTC type III,C7023 series

For 20K NTC, TR21 and C7041 series.

±0.5°C (±1°F) at 10 – 32°C (50 – 90°F)

±1.1°C (±2°F) at -1.1 – 50°C (30 – 122°F)

Voltage Input, SELV

0-10V, ±5% of full scale Digital Input

Dry contact closure

Open circuit (≥ 100Kohms) Closed circuit (≤100ohms) Voltage Output

0-10V, ±3% of full scale @2K ohms

UI x 2

Resistive Input

for 10K NTC type II, C7021 series for 10K NTC type III,C7023 series

for 20K NTC, TR21 and C7041 series

±0.5°C (±1°F) at 10 – 32°C (50 – 90°F)

±1.1°C (±2°F) at -1.1 – 50°C (30 – 122°F)

Voltage Input, SELV

0-10V, ±5% of full scale Digital Input

Dry contact closure

Open circuit (≥ 100Kohms) Closed circuit (≤100ohms)

DO (G, Y1,Y2,Y3,W1,W 2,W3)

Relay Output

1 Amps Max. at 24VAC


Relay Dry Contact

1 Amps Max. at 24VAC/DC

Communication Baud Rates

Table Communication Baud Rates


Over Wi-Fi


802.11 b/g/n


BLE 4.2 with 1 Mbps

Classic Bluetooth with max. 3 Mbps

Electrical Characteristics

Table Electrical Characteristics

Rated Impulse Voltage

500 V

Construction of Control

Independently Mounted Control

Operation Method

Type 1 Action

Pollution Degree


Purpose of Control

Operating Control

Supported Sensors and Devices

  • Indoor/Outdoor Air Temp Sensor
  • Discharge sensor/Supply air sensor
  • CO2 sensor
  • Mixed air sensor
  • Occupancy sensor
  • Dirty filter
  • Proof of airflow
  • Proof of waterflow
  • Sylk Sensor Bus devices (TR40 series and C7400S)
  • Up to four TR40 series room sensors
  • Up to four C7400S duct sensors

Thermostat Part Number 

Table Thermostat Part Number 


Thermostat with North American Wi-Fi conformance


Thermostat with outside of North American Wi-Fi conformance

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Title : Honeywell TC500A Commercial Thermostat User Gude
Format : PDF
Pages : 79 Pages
Language : English
File Size : 7 MB


Honeywell TC500A User Gude

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