Honeywell T6800 Series Manual
Honeywell T6800 Series Manual

Honeywell T6800 Series Manual

2-pipe fan coil control

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T6800 SERIES
2-PIPE FAN COIL
CONTROL
• Super modern appearance design, suitable for office, hotel and
residential building
• Horizontal and vertical model available for variant application
• Slim design, direct installation on 86 size box
• Big LCD with English and icon display
• Easy to install and set-up
• Selectable room temperature or setpoint display
• Manual or automatic fan speed selection by button press
• Remote temperature sensor
• Energy saving mode activation by button press or dry contact
(key card)
• Cycle per Hour (CPH) function
• Adjustment of display room temperature
• Temperature unit either °C or °F
• User setting can be kept when power off
• Freezing protection function available
• Lock or unlock keys or part of keys in Installer Set-up
• Heat and cool setpoint limitation for energy saving
Model summary
Horizontal/
Model
Vertical
T6800H2WN
Horizontal
Vertical
T6800V2WN
Horizontal
T6800H1WN
T6800V1WN
Vertical
Note: Horizontal models are taken as samples for display, operation and installation pictures shown in below parts.
Operating
2-pipe/
voltage
4-pipe
(V)
220
2
220
2
110
2
110
2
APPLICATION
T6800 digital thermostats are designed for application
of 3-speed fan and valves in 2-pipe fan coil system.
Including:
2-pipe cool only/heat only/manual changeover between
heat and cool
Ventilation mode
Manual or automatic 3-speed fan control Water valve
control
Fan speed can be selected to automatic or manual 3-
speed control mode.
In ventilation mode, fan only support manual speed
control.
Energy
Ventilation
Saving
Y
Y
Y
Y
Y
Y
Y
Y
Manual
Remote
/Automatic
sensor
fan
Y
Y
Y
Y
Y
Y
Y
Y

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Summary of Contents for Honeywell T6800 Series

  • Page 1 T6800 SERIES 2-PIPE FAN COIL CONTROL • Super modern appearance design, suitable for office, hotel and residential building • Horizontal and vertical model available for variant application • Slim design, direct installation on 86 size box • Big LCD with English and icon display •...
  • Page 2: Mechanical Design

    Mechanical design Fan can be selected as manual or automatic 3-speed operation. In Manual mode, the fan is switched to the selected speed via control output Gh, Gm, Gl. While in Thermostat appearnce automatic mode, fan speed depends on the difference between room temperature and setpoint.
  • Page 3 Operating modes Freezing protection mode The following operating modes are available: Freezing protection can be selected as disabled (default) or enabled. In freezing protection mode (no such mode Comfort mode in cool only application), when thermostat is in OFF In comfort mode, the setpoint can be changed by mode while the acquired temperature is below 6°C, the pressing up and down button.
  • Page 4 Application 2: 2 pipes Cool only wiring diagram Terminal Designations Item Description Terminal Cool valve AC Power Ch/Cc Heating close/Cooling close Heating open/Cooling open AC Ground High speed fan relay Remote Setback Medium speed fan relay Remote Sensor Typical wiring for ON/OFF control in 2 pipe Low speed fan relay cooling only (VC4013) Ground for remote sensor...
  • Page 5: Installation And Commissioning

    Installation & Commissioning 1 Pull wires through wire hole. 1 Place Back cover over junction box, insert and Loosen screw terminals, insert wires into terminal block, tighten mounting screws. then retighten screws. 2 Insert the cable into connector on circuit 2 Push the Power box into the junction box.
  • Page 6: Installer System Test

    Setup Function Settings & Options Installer system test Number System type Possible Options After completing the installer setup above, press the button again to begin a system test 0 Heat only Follow the procedure below to test the heating and 1 Cool only cooling and fan system.
  • Page 7 For more information, https://honeywellbuildings.in Call: 1-800-103-0339 Email: HBT-Indiabuildings@honeywell.com Honeywell HBT India Buildings T6800 SERIES 2-PIPE FAN COIL Unitech Trade Center, 5th Floor, Sector-43, CONTROL Block C, Sushant Lok Phase - I, Gurgaon - 122 002 www.honeywell.com © 2020 Honeywell International Inc.

This manual is also suitable for:

T6800h2wnT6800v2wnT6800h1wnT6800v1wn

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