All images used in this document are for illustrative
purposes only and may not match the actual product.
APPLICATION
TC500A-N/TC500A-W 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, Sylk, 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
Honeywell Connect Mobile app.
• 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
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.
• All set points are limited automatically between 40°F to
120°F.
• 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.
Equipment Control Features
• 5H/3C Heat Pump, 3H/3C Conventional and
modulating heat system
• Constant speed Fan, 2-speed Fan, and Variable Speed
Fan
• Packaged Economizer Coordination Output
• Multiple Dehumidification and Humidification options
• Service mode to manually command the outputs to test
the operation of the mechanical equipment
• Auto mode to switch between heating and cooling
according to the current space temperature
• Staging control, PID Tuning, CPH, OAT Lockout, DAT
Lockout, Modulating control
• Demand Limit Control to save energy
• System Switch Options
• Smoke Monitor
TC500A-N COMMERCIAL THERMOSTAT
TECHNICAL SPECIFICATIONS
Power Characteristics
Table 1. Power Characteristics
Power SupplyRated voltage: 24VAC
Power Consumption
(Display ON)
Min. Load4VA (all BOs OFF, No Sylk
Max. Load96VA (all BOs ON)
Display
Table 2. Display
Display Type24 BPP TFT display with
Resolutions480x480 pixel
Active Display Area4” diagonally
BacklightLCD (Dimmable)
IO Characteristics
50/60Hz,
Working voltage range:
20-30VAC, UL listed
class-2 transformer or IEC
61558 listed transformer.
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
Communication Baud Rates
BACnet IPOver Wi-Fi
Wi-Fi802.11 b/g/n
BluetoothBLE 4.2 with 1 Mbps
Classic Bluetooth with max. 3 Mbps
Electrical Characteristics
Table 6. Electrical Characteristics
Rated Impulse Voltage500 V
Construction of ControlIndependently Mounted
Control
Operation MethodType 1 Action
Pollution Degree2
Purpose of ControlOperating 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
Terminal Identification
Fig. 1. Terminals
Table 7. Terminal identification
TerminalLabelConnection
24VAC power from heating
R
transformer
24VAC
UIO1
COMCommon
UIO2
COMCommon
UI1
COMCommon
UI2
COMCommon
Sylk
RS485
24VAC common (Neutral). For 2
transformer systems, use
C
common wire from cooling
transformer
1Universal input/output
2Universal input/output
1Universal input
2Universal input
Sylk bus, master, power output
Sylk bus, master, power output
+BACnet Communications
_BACnet Communications
R-RC
331-00398M-01 | Rev. 10-20
Jumper between R and RC for
single transformer system
Low Speed Fan,
Occupancy,
Simple Dehum, and
Humidification.
Low Speed Fan,
Occupancy,
Simple Dehum, and
Humidification.
DO8
(Dry Contact,
2 terminals)
31-00398M-01 | Rev. 10-204
AuxEconomizer (Enable),
Occupancy,
Simple Dehum,
Low Speed Fan, and
Humidification.
TypeTerminalLabel
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)
TC500A-N COMMERCIAL THERMOSTAT
Table 9. Terminal Assignments
Terminal Assignments
(Default & Optional Assignments)
DEFAULTINPUTSOUTPUTS
UI1
Universal
Inputs
(2 terminals)
UI2
(2 terminals)
UIO1
Universal
(2 terminals)
Inputs/
Outputs
UIO2
(2 terminals)
RR24v Power
Power
CCCommon
RCRC24v Power / Cooling
1
Sylk Bus
2
BACnet
MS/TP
1
2
DIMENSIONS
UI1NAOccupancy Sensor,
Dirty Filter,
Proof of Airflow,
UI2NA
Shutdown,
Mixed Air Sensor,
UIO1NAMulti-Speed Fan (UIO1)
Outdoor Air Sensor,
Discharge Air Sensor,
CO2 Sensor,
UIO2NAModulating Heat (UIO2)
Proof of Waterflow, and
Space Temp Sensor.
S-BusSylk connection
MS/TPBACnet MS/TP
531-00398M-01 | Rev. 10-20
TC500A-N COMMERCIAL THERMOSTAT
GENERAL SAFETY
INFORMATION
• When performing any work (installation, mounting,
start-up), all manufacturer instructions and in
particular the Installation and Commissioning
Instructions (MU1B-0208IE10) are to be observed.
• TC500A-N/TC500A-W Thermostat may be installed
and mounted only by authorized and trained personnel.
• Rules regarding electrostatic discharge should be
followed.
• If TC500A-N/TC500A-W Thermostat is modified in any
way, except by the manufacturer, all warranties
concerning operation and safety are invalidated.
• Make sure that the local standards and regulations are
observed at all times.
• Use only accessory equipment which comes from or
has been approved by Honeywell.
• 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 UL60730-1, and UL60730-2-9.
• Investigated according to Canadian National
Standard(s) C22.2, No. 205-M1983 (CNL-listed).
• Do not open TC500A-N/TC500A-W 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-N/TC500A-W Thermostat is Class B digital
apparatus and complies with Canadian ICES-003.
• 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.
• Caution: Changes or modifications to this unit not
expressly approved by the party responsible for
compliance could void the user's authority to operate
the equipment.
• This device contains licence-exempt
transmitter(s)/receiver(s) that comply with Innovation,
Science and Economic Development Canada’s licenceexempt RSS(s). Operation is subject to the following
two conditions:
1. This device may not cause interference.
2. This device must accept any interference, including
interference that may cause undesired operation of
the device.
• L’émetteur/récepteur exempt de licence contenu dans
le présent appareil est conforme aux CNR d’Innovation,
Sciences et Développement économique Canada
applicables aux appareils radio exempts de licence.
L’exploitation est autorisée aux deux conditions
suivantes:
1. L’appareil ne doit pas produire de brouillage;
2. L’appareil doit accepter tout brouillage radioélec-
trique subi, même si le brouillage est susceptible
d’en compromettre le fonctionnement.
• This equipment has been tested and found to comply
with the limits for a Class B digital device, pursuant to
part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful
interference in a residential installation. This
equipment generates uses and can radiate radio
frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful
interference to radio communications. However, there
is no guarantee that interference will not occur in a
particular installation. If this equipment does cause
harmful interference to radio or television reception,
which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
—Reorient or relocate the receiving antenna.
—Increase the separation between the equipment
and receiver.
—Connect the equipment into an outlet on a circuit
different from that to which the receiver is connected.
—Consult the dealer or an experienced radio/TV
technician for help.
• To satisfy FCC&IC RF exposure requirements, a
separation distance of 20 cm or more should be
maintained between the antenna of this device and
persons during device operation. To ensure
compliance, operations at closer than this distance is
not recommended.
• Les antennes installées doivent être situées de facon à
ce que la population ne puisse y être exposée à une
distance de moin de 20 cm. Installer les antennes de
facon à ce que le personnel ne puisse approcher à 20
cm ou moins de la position centrale de l’ antenne.
Region Selection (for Wi-Fi 2.4G device)
• Limited by local law regulations, version for North
America does not have region selection option.
Safety Information as per EN60730-1
TC500A-N/TC500A-W Thermostat is intended for
residential, commercial environments.
TC500A-N/TC500A-W Thermostat is an independently
mounted electronic control system with fixed wiring.
TC500A-N/TC500A-W 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.