Honeywell TB6575, TB8575 Specifications
63-1323-03
TB6575/TB8575 SuitePRO™
Digital Fan Coil Thermostats
SPECIFICATION DATA
FEATURES
• Simple, intuitive user interface.
• Pre-installed lead wires for fast installation (TB6575A,
TB6575B and TB6575C models only)
• Backlight display permits easy viewing in any light.
• Four buttons allow manual control of system
operation, fan speed, and temperature setpoint
adjustment.
• Digital display of ambient temperature, setpoint,
heating or cooling mode, fan status, and remote
setback
• Proportional plus Integral (P+I) control algorithm for
precision temperature regulation.
• Adjustable deadband for auto changeover using the
PRODUCT DESCRIPTION
The SuitePRO™ is a family of Digital Fan Coil thermostats for
residential and commercial applications such as hotels,
condominiums, school classrooms, etc.
Four models are available for your application:
• TB6575A1000 – 2-pipe or 4-pipe with seasonal/manual/
automatic heat/cool changeover; 120/240 Vac.
• TB6575B1000 – 2-pipe with seasonal or manual heat/cool
changeover; 120/240 Vac.
• TB6575C1000 – 2-pipe or 4-pipe with seasonal/manual/
automatic heat/cool changeover; 277 Vac.
• TB8575A1000 – 2-pipe or 4-pipe with manual and
seasonal heat/cool changeover; 24Vac.
All four models are suitable for multiple applications. Changes
in output wiring and external links between wiring terminals
allow you to configure the thermostat for the appropriate
application.
Valves and auxiliary electric heaters can be controlled using a
relay or contactor controlled by the system switch.
Heat and Cool setpoint settings.
• Adjustable maximum heating and minimum cooling
setpoint limits using range stops.
• Installer setup mode allows changes of operating
parameters.
• EEPROM permanently retains user settings, including
setpoints, during power loss (no batteries required).
• Selectable °C or °F display via Installer Setup.
• Displayable pipe sensor temperature readout to aid in
troubleshooting.
• Automatic pipe purge of five minutes once every 24
hours to ensure unrestricted flow (only when used with
optional pipe sensor).
• Fan motor always begins on high speed to ensure
sufficient torque at startup.
• Option to wire a remote indoor temperature sensor.
• Freeze protect algorithm turns on heat when needed.
• Energy Saving Options:
• Activity Sensing sets back thermostat to
economy mode when there is no activity with
the thermostat (4, 12, or 24 hours selectable).
• Remote Setback Inputs receive dry contact
input from a time switch, occupancy sensor, or
hotel card key to set back thermostat to
economy mode.
• Auto Fan Reset eliminates the fan from being
run all the time by automatically setting the fan
to auto (2 or 4 hour selectable).
• VersaSpeed™ fan ramp algorithm automatically
adjusts fan speed (low, medium, and high).
TB6575/TB8575 SUITEPRO™ DIGITAL FAN COIL THERMOSTATS
SPECIFICATIONS
Supply Voltages:
TB6575A1000 and TB6575B1000:
• 120 Vac ±10% at 50/60Hz
• 240 Vac -15% to +10% at 50/60Hz
TB6575C1000:
• 277 Vac ±10% at 50/60Hz
TB8575A1000:
• 20 to 30 Vac at 50/60Hz (using 24 Vac, Class 2,
NEMA rated transformer)
Safety Fuse: 15 A, 250 Vac. If the safety fuse blows, the
thermostat must be replaced. The fuse is not field
replaceable.
Electrical Ratings:
Component
Fan Relay 1.0 A 6.0 A 3.0 A 2.4 A
Heat/Cool Relay 1.0 A 1.0 A 1.0 A 1.0 A
Environmental Ratings:
Temperature:
Operating Range: 18°C to 49°C (0°F to 120°F).
Shipping and Storage Range: -29°C to 49°C (-20°F to
120°F).
Humidity: 5% to 90% RH, non-condensing.
Onboard Temperature Sensor:
Ty p e : 10 K N T C
Working Range: 18°C to 49°C (0°F to 120°F)
Display Range: 0°C to 37°C (32°F to 99°F)
Accuracy ±2.0°F at 70°F
Remote Temperature Sensor (optional):
Ty p e : 20 K N T C
Working Range: 18°C to 49°C (0°F to 120°F)
Display Range: 0°C to 37°C (32°F to 99°F)
Accuracy ±2.0°F at 70°F
Remote Pipe Sensor (optional):
Ty p e : 20 K N T C
Working Range: 0°C to 93°C (32°F to 199°F)
Display Range: 0°C to 93°C (32°F to 199°F)
Accuracy ±5.0°F over the temperature sensing range
Remote Setback Input: Dry contact, maximum resistance of
100 ohms. TB6575 – 9Vdc, < 4 mA; TB8575 – 16 Vdc,
<5mA.
Table 1. Electrical Ratings.
Amps (inductive) for:
24 Vac 120 Vac 240 Vac 277 Vac
Remote Setback Range:
Heating: 10°C to 21°C (50°F to 70°F).
Cooling: 22°C to 32°C (72°F to 90°F).
Enclosure: Plastic (cover, sub-base, and optional adaptor
plate)
Junction Box Mounting: Direct mounting on a horizontal
single gang NEMA 2 x 4 in. surface mount electrical box, or
on 4 x 4 in. box or vertical 2 x 4 in. surface mount electrical
box with the optional 50033847-001 adapter plate
Dimensions: See Fig. 1 on page 3.
Wiring: 11 screw-in terminals located on the sub-base capa-
ble of accepting up to 2 x 18 AWG (0.8 sq. mm), 1 x 16
AWG (1.3 sq. mm), or 1 x 14 AWG (2.1 sq. mm) wires.
Accepts stranded or unstranded 14-28 gauge wire.
NOTES:
1. The TB6575A1000 and TB6575C1000 models
are pre-fitted with color-coded fly leads (16 AWG)
attached to seven terminals.
2. The TB6575B1000 model is pre-fitted with colorcoded fly leads (16 AWG) attached to six terminals.
3. The TB8575A1000 model does not have fly leads
attached to any terminals.
4. Refer to the TB6575/TB8575 SuitePRO™ Digital
Fan Coil Thermostats – Installation Instructions
(form (62-0278) for fly lead usage.
Minimum Operational Life (at maximum load):
Thermostat contacts: 100,000 cycles
Approvals:
CSA Certified C/US for Canada and the U.S.A. Meets the
same requirements as UL-873.
FCC Part 15 Class B
Accessories:
• 50033847-001 – Adapter plate for mounting on a vertical 2
x 4 in. single-gang or double-gang NEMA standard vertical
switch box.
• TR21 – 20K Ohm NTC Non-Linear Remote temperature
sensor.
Other acceptable remote temperature sensors are —
• 20K Ohm: C7041B2005, C7041B2013,
C7041C2003, C7041P2004, C7770A1006,
C7772A1004, and C7772A1012.
• 10K Ohm (for averaging only): TR21-A
• PS20 (535-34AB08-203) – Remote pipe sensor (20K Ohm)
• W6380B1005 – Fan Coil Unit Relay Control Center
63-1323—03 2
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