Honeywell TC500A User manual

USER GUIDE
® U.S. Registered Trademark
Copyright © 2020 Honeywell Inc. • All Rights Reserved 31-00400M-01 | Rev10-20
OCTOBER 2020
TC500A Commercial Thermostat

31-00400M-01 | Rev10-20 3
Table of content
Table of content .............................................................................................................................. 3
Important Safety Information and Installation Precautions.................................. 6
Introduction...................................................................................................................................... 9
About TC500A Thermostat......................................................................................................... 9
Features....................................................................................................................................... 9
Intended audience and assumed knowledge............................................................ 10
Reference documents......................................................................................................... 10
Abbreviation and Nomenclature .................................................................................... 10
Conventions............................................................................................................................ 10
Dimensions ............................................................................................................................. 11
Technical Specifications.................................................................................................... 12
Security requirement........................................................................................................... 14
Deployments and Maintenance Considerations ..................................................... 15
Getting started ............................................................................................................................. 17
TC500A Thermostat at a glance ..................................................................................... 17
Thermostat Display Overview.......................................................................................... 17
Presence detection............................................................................................................... 17
Home Page (Main Screen): Temperature reading and adjustment.................. 18
Home Page (Right Screen): Quick access and device management ............... 19
Home Page (Left Screen): Weather and sensor reading....................................... 20
Home screen icon overview.............................................................................................. 21
Smart LED indication.......................................................................................................... 22
Initial Configuration................................................................................................................... 23
Prerequisites........................................................................................................................... 23
Step 1. Selecting a language............................................................................................ 24

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Step 2. Choosing a configuration platform ................................................................25
Step 3. Configuration through thermostat touchscreen display.......................26
Step 4. Setting Installer Pin...............................................................................................35
Step 5. Connecting a thermostat....................................................................................37
Basic Configuration .............................................................................................................44
User Management.......................................................................................................................47
User Roles ................................................................................................................................47
Configuring the user roles.................................................................................................48
Managing Alarms ........................................................................................................................57
About Alarms...........................................................................................................................57
Alarm notification signs .....................................................................................................57
Unacknowledged Alarms ...................................................................................................58
List of Alarms and their severity......................................................................................60
Managing Alarms..................................................................................................................61
Scheduling .....................................................................................................................................63
About Schedule......................................................................................................................63
Setting up a Weekly Schedule..........................................................................................64
Setting up a Holiday Schedule.........................................................................................69
Resetting Schedule ..............................................................................................................74
Factory reset............................................................................................................................76

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COMMERCIAL TOUCHSCREEN THERMOSTAT
Revision History
Notice
This document contains Honeywell proprietary information. Information contained
herein is to be used solely for the purpose submitted, and no part of this document
or its contents shall be reproduced, published, or disclosed to a third party without
the express permission of Honeywell International Inc.
While this information is presented in good faith and believed to be accurate,
Honeywell disclaims the implied warranties of merchantability and fitness for a
purpose and makes no express warranties except as may be stated in its written
agreement with and for its customer.
In no event is Honeywell liable to anyone for any direct, special, or consequential
damages. The information and specifications in this document are subject to
change without notice.
Copyright 2020 – Honeywell International Inc.
Waste Electrical and Electronic Equipment (WEEE)
FCC Part 15 compliant
This device complies with part 15 of the FCC Rules. Operation is subject to the
following two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that
may cause undesired operation.
Document Date
31-00400M-01 Oct 2020
WEEE: Waste Electrical and Electronic Equipment Directive
• At the end of the product life, dispose of the
packaging and product in an appropriate
recycling center.
• Do not dispose of the device with the usual
domestic refuse.
• Do not burn the device.

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Regulation (EC) No 1907/2006
According to Article 33 of Reach Regulation, be informed that the substances listed
below may be contained in these products above the threshold level of 0.1% by
weight of the listed article.
Important Safety Information and Installation Precautions
Read all instructions
Failure to follow all instructions may result in equipment damage or a hazardous
condition. Read all instructions carefully before installing equipment.
When performing any work (installation, mounting, start-up), all manufacturer
instructions and in particular the Mounting Instructions (31-00399M-01) are to be
observed.
• TC500A Thermostat may be installed and mounted only by authorized and
trained personnel.
• It is recommended that devices be kept at room temperature for at least 24 hours
before applying power. This is to allow any condensation resulting from low
shipping/storage temperatures to evaporate.
• Investigated according to United States Standard UL- 60730-1, and UL60730-2-
9.
• Investigated according to Canadian National Standard(s) C22.2, No. 205-M1983
(CNL-listed).
• Do not open TC500A Thermostat, as it contains no user-serviceable parts inside!
• CE declarations according to LVD Directive 2014/35/EU and EMC Directive
2014/30/EU.
• Product standards are EN 60730-1 and EN 60730-2-9.
• TC500A Thermostat is Class B digital apparatus and complies with Canadian
ICES-003.
Local codes and practices
Always install equipment in accordance with the National Electric Code and in a
manner acceptable to the local authority having jurisdiction.
Electrostatic sensitivity
This product and its components may be susceptible to electrostatic discharge
(ESD). Use appropriate ESD grounding techniques while handling the product.
When possible, always handle the product by its non-electrical components.
Product/Part Code Substance Name CAS Number
Only TC500A-W /
thermostat mainboard
CBA, thermostat wall
plate board PCBA
Lead 7439-92-1
Lead oxide 1317-36-8

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COMMERCIAL TOUCHSCREEN THERMOSTAT
High voltage safety test
Experienced electricians, at first contact, always assume that hazardous voltages
may exist in any wiring system. A safety check using a known, reliable voltage
measurement or detection device should be made immediately before starting work
and when work resumes.
Lightning and high-voltage danger
Most electrical injuries involving low-voltage wiring result from sudden, unexpected
high voltages on normally low voltage wiring. Low-voltage wiring can carry
hazardous high voltages under unsafe conditions. Never install or connect wiring or
equipment during electrical storms. Improperly protected wiring can carry a fatal
lightning surge for many miles. All outdoor wiring must be equipped with properly
grounded and listed signal circuit protectors, which must be installed in compliance
with local, applicable codes. Never install wiring or equipment while standing in
water.
Wiring and equipment separations
All wiring and controllers must be installed to minimize the possibility of accidental
contact with other potentially hazardous and disruptive power and lighting wiring.
Never place 24VAC or communications wiring near other bare power wires, lightning
rods, antennas, transformers, or steam or hot water pipes. Never place wire in any
conduit, box, channel, duct or other enclosure containing power or lighting circuits
of any type. Always provide adequate separation of communications wiring and
other electrical wiring according to code. Keep wiring and controllers at least six feet
from large inductive loads (power distribution panels, lighting ballasts, motors, etc.).
Failure to follow these guidelines can introduce electrical interference and cause the
system to operate erratically.
Warning
By using this Honeywell literature, you agree that Honeywell will have no liability for
any damages arising out of your use, or modification to, the literature. You will defend
and indemnify Honeywell, its affiliates and subsidiaries, from and against any
liability, cost, or damages, including attorneys' fees, arising out of, or resulting from,
any modification to the literature by you.
The material in this document is for information purposes only. The content and the
product it describes are subject to change without notice. Honeywell makes no
representations or warranties with respect to this document. In no event shall
Honeywell be liable for technical or editorial omissions or mistakes in this document,
nor shall it be liable for any damages, direct or incidental, arising out of or related to
the use of this document. No part of this document may be reproduced in any form
or by any means without prior written permission from Honeywell.
Safety Information as per EN60730-1
TC500A Thermostat is intended for commercial and residential environments.
TC500A Thermostat is an independently mounted electronic control system with
fixed wiring.
TC500A Thermostat is used for the purpose of building HVAC control and is suitable
for use only in non-safety controls for installation on or in appliances.

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CHAPTER
1
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Introduction
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.
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.

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1 - ABOUT TC500A THERMOSTAT
• 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.
Intended audience and assumed knowledge
This document provides information about installing and commissioning a TC500A
Thermostat. It also shows how to operate the user interface.
It is assumed that the user is trained and familiar with HVAC concepts.
IMPORTANT: Always install equipment in accordance with the National Electric
Code and in a manner acceptable to the local authority having jurisdiction (AHJ). No
guidelines, instructions, installation practices, or other information presented in this
guide may be interpreted to supersede or modify the local codes and practices of the
AHJ.
Reference documents
• Commercial Thermostat Datasheet (31-00398M)
• Commercial Thermostat Mounting instructions (31-00399M)
• Commercial Thermostat Quick start guide (31-00401M)
Abbreviation and Nomenclature
Conventions
The TC500A Commercial Connected Thermostat uses a 4 inch, 480x480 pixel LCD
screen for easy navigation and setup. User can select from various options available
on the screen by lightly tapping the option on the screen or scrolling through the list.
The conventions for hand gestures used to navigate through the pages on the
TC500A Thermostat display are:
• Tap: Quickly touch and release to select a control or item; equivalent to a mouse-
click.
Abbreviation Definition
AHU Air Handling Unit
RTU Roof Top Unit
VAC Volts AC (Alternating Current)
VDC/ DC Volts DC (Direct Current)
OTW Over-The-Wire
ETA Serial Communication protocol
BMS Building Management System

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DIMENSIONS
• Swipe: Quickly slide one or more fingers across the screen to reveal controls or to
scroll through lists or groups of items; equivalent to scroll.
Figure 1 Hand Gestures Convention
• A green tick appears before the valid selection
• If the option selected or the text entered is valid, the option to move to the
subsequent screen turns blue. Tapping the option in blue will toggle to next
screen.
Dimensions
Figure 2 Dimensions
Swipe right to view or
scroll towards left
Swipe down to view
or scroll towards up
Swipe up to view or
scroll towards down
Tap to select an item
Swipe left to view or
scroll towards right
3 -19/32 ” (91.2 mm)
4 - 15/32”
(113.7 mm)
4 x 11/32”
(9mm)
2 - 3/8”
(60.3mm)
3 - 1/4”
(82.75mm)
4 x 3/16”
(4.5mm)

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Technical Specifications
Power Characteristics
Display
Operating Environment
Compliances
Table 1 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 2 Display
Display Type 24 BPP TFT display with CTP
Resolutions 480x480 pixel
Active Display Area 4” diagonally
Backlight LCD (Dimmable)
Table 3 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 IP20
Table 4 Compliances
Certificates CE, FCC, ICES, UL/cUL, RoHs, REACH, Title 24, BTL, ASHRAE, LEED, and Prop65.
Standards 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

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TECHNICAL SPECIFICATIONS
IO Characteristics
Communication Baud Rates
Table 5 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
DO (AUX) Relay Dry Contact
1 Amps Max. at 24VAC/DC
Table 6 Communication Baud Rates
BACnet IP Over Wi-Fi
Wi-Fi 802.11 b/g/n
Bluetooth BLE 4.2 with 1 Mbps
Classic Bluetooth with max. 3 Mbps

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Electrical Characteristics
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
Security requirement
System Environmental Considerations
A firewall is required to isolate the Thermostat. Unprotected Internet connections
can expose and damage the thermostat system and facility components to cyber-
attacks from third parties. This may cause the thermostat to malfunction and can
also be misused for illegal purposes for which the operator may then be held liable.
Table 7 Electrical Characteristics
Rated Impulse Voltage 500 V
Construction of Control Independently Mounted Control
Operation Method Type 1 Action
Pollution Degree 2
Purpose of Control Operating Control
TC500A-N Thermostat with North American Wi-Fi conformance
TC500A-W Thermostat with outside of North American Wi-Fi conformance

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DEPLOYMENTS AND MAINTENANCE CONSIDERATIONS
Deployments and Maintenance Considerations
• Always keep local server up to date on the latest security patches via regular
system update. This applies not only to workstations or servers running on
Windows, Linux, Mac or any devices that runs as part of information
infrastructure or operations workstation.
• Always keep the thermostat firmware with the latest released firmware to have
maximum protection by built-in security features.
• Do not use default passwords for any devices (if exists). This includes, but not
limited, to all server workstations, storage servers, firewall devices, routers, and
mobile devices.
• Do not use weak passwords for server administrators or operators. Different user
role (for example administrator, user, guest, etc.) shall have different password,
and user should not share common passwords.
• It is recommended to change password in every 3 months.
• In case of wireless communication, malicious wireless devices can easily scan the
wireless channel and inject malicious packets or mass data flow to perform Deny-
of-Service attacks. Honeywell has taken steps to prevent TC500A Commercial
Thermostat device from being injected, but the mass data flow will result in loss of
wireless communication bandwidth within the whole system. Regular check of the
communication failure rate or response rate of the thermostat is helpful to
discover and isolate devices being attacked and stop the physical attacks in daily
operation
Network Communication Notice
• To keep maximum integration compatibility with third — party devices and Fast-
pack communications are un-encrypted as open protocol. Improper security
protection may lead to data leakage, spoofing and/or tampered by malicious
devices and denial-of-service attacks.
• To keep maximum integration compatibility with legacy devices, in-room wired
devices are less secure from data confidentiality and authentication thus not-
recommended for new design. It is always highly recommended to use deep mesh
wireless network communication to gain maximum protection and latest updates.
• In case of Deny-of-Service attacks, all communication channels will inevitably
have loss of bandwidth due to malicious data flow.
• The RS 485, S5 bus may contain legacy technology, which is less secure under
modern cyber-security attacks. Honeywell strongly recommends to use a secured
deep mesh wireless network communication. In case of legacy technology, user
needs to be aware of the risk of being tampered or attacked. To reduce the attack
surface, user is advised to physically secure the wired communication signals or
provide necessary shield on wires, or place necessary access control on accessing
such communication wires.

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CHAPTER
2
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Getting started
This chapter describes TC500A Thermostat display and icon overview. For mounting
the TC500A Thermostat, refer TC500A Thermostat Mounting instructions (31-
00399M).
TC500A Thermostat at a glance
Thermostat Display Overview
The images below illustrates the typical screen of TC500A Thermostat screens. The 4
inch LCD screen on the thermostat is touch sensitive and shows status of the ther-
mostat.
Presence detection
TC500A Thermostat has a built-in proximity sensor. It detects presence of a user up
to 1.5 meters, and “wakes” the screen to prepare for user interaction.

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2 - GETTING STARTED
Home Page (Main Screen): Temperature reading and adjustment
2
3
1
4
5
6
7
8
9
10
11
Table 8 Home Page (main screen) overview
Serial
Number Description
1Indoor Humidity: Displays the current indoor humidity
2Current Priority: Tap to toggle between occupied or unoccupied mode
3Indoor Temperature: Displays the current indoor temperature.
4Mode Display: Orange flame for heat mode, blue snowflake for cool mode.
5 Wi-Fi signal strength
6 Time
7Adjust temperature: Touch the up arrow to increase the desired temperature.
8Desired temperature: Displays the desired temperature.
9Adjust temperature: Touch the down arrow to decrease the desired temperature.
10 Temperature Slider: Use finger to move the slider to set the desired temperature.
11 Page Slider: Use finger to slide to left or right to display more options.

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HOME PAGE (RIGHT SCREEN): QUICK ACCESS AND DEVICE MANAGEMENT
Home Page (Right Screen): Quick access and device management
1
2
3
54
5
6
7
Table 9 Home Page (right screen) overview
Serial
Number Description
1Brightness: Tap to increase or decrease the brightness of display
2Alerts: Tap to view active alarms and reminders.
3Schedule: Tap to set the schedules.
4Temperature Units: Tap to toggle between Fahrenheit or Celsius
5Override: Tap to override unoccupied or standby modes to allow setpoint adjustments
6Contractor information: Tap to view contractor information.
7Config: Tap to configure the thermostat.

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Home Page (Left Screen): Weather and sensor reading
Note: Home page (Left Screen) varies according to the sensor connected to the thermostat.
4
4
3
1
2