Honeywell TC300 User manual

CONFIGURATION AND USER GUIDE
® U.S. Registered Trademark
Copyright © 2023 Honeywell Inc. • All Rights Reserved 31-00644-01 | Rev 11-23
TC300 Commercial Thermostat
CONNECTED DEVICE FOR COMMERCIAL BUILDINGS

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Table of contents
Important Safety Information and Installation Precautions.................................. 8
Introduction................................................................................................................................... 11
About TC300 Thermostat .................................................................................................. 12
Features.................................................................................................................................... 12
Equipment control features ........................................................................................... 12
Intended audience and assumed knowledge............................................................ 13
Reference documents......................................................................................................... 13
Abbreviation and nomenclature..................................................................................... 13
Conventions............................................................................................................................ 14
Dimensions ............................................................................................................................. 15
Technical specifications..................................................................................................... 16
Terminal Identification ....................................................................................................... 21
Terminal assignment........................................................................................................... 23
Security requirement........................................................................................................... 24
Overview.......................................................................................................................................... 25
Home screen: Temperature reading and adjustment ............................................ 26
Quick access screen (right side screen): Device configuration.......................... 27
Ambiance screen (left side screen): Sensor reading .............................................. 28
Home screen icon overview.............................................................................................. 28
Inactive display modes....................................................................................................... 30
Display timeout properties ............................................................................................... 31
Getting Started............................................................................................................................. 33
Prerequisites........................................................................................................................... 34
Boot-up the thermostat ..................................................................................................... 35
Configuration................................................................................................................................ 43

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TC300 THERMOSTAT USER GUIDE
Configuration screen...........................................................................................................44
Basic configuration ..............................................................................................................45
Equipment configuration ..................................................................................................49
I/O terminal assignment....................................................................................................57
Configuring sensors.............................................................................................................59
Managing System switch...................................................................................................64
Managing Discharge air control .....................................................................................65
Managing Dehumidification ............................................................................................67
Managing Valve cycle..........................................................................................................68
Advanced configuration .....................................................................................................69
Managing Setpoint options ..............................................................................................70
Managing Cooling options................................................................................................72
Managing Heating options ...............................................................................................74
Managing Pipe sensor thresholds .................................................................................75
Managing Valve purge ........................................................................................................76
Miscellaneous ........................................................................................................................77
Managing Service mode.....................................................................................................77
Managing Standby action .................................................................................................79
Viewing the Security log .....................................................................................................80
Viewing the Diagnostics .....................................................................................................80
Managing connection .........................................................................................................81
User management ................................................................................................................85
Configuring the user roles.................................................................................................85
Configuring Home screen (Display Management) .................................................88
Managing display settings................................................................................................89
Reset to default ......................................................................................................................91
Viewing the system status .................................................................................................92
Managing Setpoints.............................................................................................................93
Changing the system mode..............................................................................................95
Changing the fan speed .....................................................................................................96
Alarms ..............................................................................................................................................97
Alarms........................................................................................................................................97
Alarm notification signs .....................................................................................................97
Alarm notification .................................................................................................................98

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TC300 THERMOSTAT USER GUIDE
Alarm preference ...................................................................................................................98
Unacknowledged alarms.................................................................................................101
List of alarms and their severity ...................................................................................103
Managing the alarms........................................................................................................105
Scheduling...................................................................................................................................109
About Schedule ...................................................................................................................109
Setting up a weekly schedule.........................................................................................110
Setting up a holiday schedule .......................................................................................115
Special event ........................................................................................................................121

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TC300 THERMOSTAT USER GUIDE

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TC300 THERMOSTAT USER GUIDE
Declaration
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 2023 – 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.
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.

8 Important Safety Information and Installation Precautions
TC300 THERMOSTAT USER GUIDE
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 (31-00642) are to be
observed.
• TC300 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.
• Do not open TC300 Thermostat, as it contains no user-serviceable parts inside!
• 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).
• 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.
• TC300 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.
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
Product/Part Code Substance Name CAS Number
Only TC300 thermostat main board CBA,
thermostat wall plate board PCBA
Lead 7439-92-1
Lead oxide 1317-36-8

Important Safety Information and Installation Precautions 9
TC300 THERMOSTAT USER GUIDE
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
TC300 Thermostat is intended for commercial and residential environments.
TC300 Thermostat is an independently mounted electronic control system with fixed
wiring.
TC300 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.

10 Important Safety Information and Installation Precautions
TC300 THERMOSTAT USER GUIDE