Mechanical Design; Terminal Designations; Wiring Diagrams; Temperature Display - Honeywell T6811 Series Specification Data

T6811/6812 SERIES DIGITAL THERMOSTAT

Mechanical Design

Thermostat Appearance
DOWN
BUTTON
FAN
BUTTON
Fig. 2. Thermostat controls.
Function

Temperature Display

The displayed temperature can be set to room temperature or
setpoint. The setting can be changed during the Installer
Setup process.

Keypad Lockout

Full keypad lockout can be set in the Installer Setup. If keypad
lockout is chosen, all of the keys will be disabled from use.
Ventilation Mode
Press mode button to enter ventilation mode. While in
ventilation mode, there will be no output for the valve but the
fan will support manual fan speed control.
Automation and Control Solutions
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
Honeywell Limited-Honeywell Limitée
35 Dynamic Drive
Toronto, Ontario M1V 4Z9
www.customer.honeywell.com

Terminal Designations

Terminal
L
Ch/Cc
W/Y
N
Gl
UP
BUTTON
Gm
MODE
Gh
BUTTON

Wiring Diagrams

POWER
BUTTON
M29690
Fig. 3. Typical wiring for ON/OFF control in 2 pipes Heat/
Fig. 4. Typical wiring for ON/OFF control in 2 pipes Heat/
® U.S. Registered Trademark
© 2010 Honeywell International Inc.
63-4375ES—02 K.K. Rev. 06-10
Printed in U.S.A.
Table 2. Terminal designations.
Description
Line Voltage Power
Heating close/Cooling close
Heating open/Cooling open
Line Voltage Ground
Low speed fan
Medium speed fan
High speed fan
L
Ch/Cc
VALVE
W/Y
N
GI
FAN
Gm
Gh
Cool/1H1C (For 2-wire valve actuators).
L
Ch/Cc
VALVE
W/Y
N
GI
FAN
Gm
Gh
Cool/1H1C (For 3-wire valve actuators).
L
N
M29504
L
N
M29505