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INSTALLATION INSTRUCTIONS
62-0325ES-01
T6811DP08/T6812DP08 Digital Thermostat
Display
INSTALLATION GUIDE
CAUTION
Electrical Hazard.
Can cause electrical shock or equipment damage.
Disconnect power before installation.
Terminal Designations
Wiring Diagrams
Fig. 1. Typical wiring for ON/OFF control in 2 pipes Heat/
Cool/1H1C (for 2-wire valve actuators).
DOWN BUTTON
FAN SWITCH
UP BUTTON
MODE BUTTON
POWER SWITCH
MCR29502
Setup
Test
Set to
Lock
INDICATES THE
INSTALLER SETUP
INDICATES THE NUMBER
OF SETUP OR TEST
INDICATES THE
INSTALLER TEST
KEYPAD LOCK
INDICATES THE
SETPOINT
INDICATES THE
TEMPERATURE
CURRENT
MODE
INDICATES TEMPERATURE IS
“CALLING” FOR HEAT OR COOL
M29503
Terminal Designation
L Line Voltage Power
Ch/Cc Heating close/Cooling close
W/Y Heating open/Cooling open
N Line Voltage Ground
Gl Low speed fan
Gm Medium speed fan
Gh High speed fan
FAN
VALVE
L
N
L
Ch/Cc
W/Y
N
GI
Gm
Gh
M29504