Filter
Top Products
TH146-P-2H1C
User’s Guide
Programmable H/C Controller
TH146-P-2H1C 400-280-014-A 5/23/07 9/11
n Press Clk. The hour display flashes.
o Set the hour using .
p Press Clk. The minute display flashes.
q Set the minutes using .
r Press Clk. The day display flashes.
s Set the day using .
t Press to return to the normal display.
n Press Clk for 3 seconds to display the year.
o Set the year using .
p Press Clk to display the month.
q Set the month using .
r Press Clk to display the date.
s Set the date using .
t Press to return to the normal display.
Press the Fan button to select the fan operating mode.
• In automatic mode, the fan runs only when heating or cooling is
activated. NOTE: For gas-operated HVAC systems, there might
be a delay before the fan starts or stops when heating is acti-
vated or deactivated.
• In continuous mode, the fan runs continuously and the sym-
bol is displayed. NOTE: if Smart Fan is enabled, when the con-
troller is in periods 2 and 4 of automatic mode and in
unoccupied mode, the fan will run only when heating or cooling
is activated. The fan will run continuously the rest of the time
The controller normally displays the measured indoor temperature.
To view the setpoint, press one of the buttons. The setpoint and
the symbol will be displayed for the next 5 seconds.
Press Mode to place the system in one of the following modes:
Time and day setting
Programming
Program day selection
Program clear
Humidity setting
Return
Temperature
adjustment
mode selection
Fan operating
mode selection
System operating
mode selection
Up/Down buttons
Indicator LEDs
FAULT: System fault
EH: Emergency heat mode
DE: Dual energy
Day
Clock
Indoor temperature
Outdoor temperature
Indoor humidity
Indicator LEDs
Backlight
The screen is lit for 12 seconds
when any button is pressed.
However, the screen remains lit
while you are configuring the
controller.
5. General Setting
5.1
Clock and Day Setting
5.2
Date Setting
5.3
Fan Operating Mode
6. Temperature Setting
6.1
Display
6.2
System Operating Mode
HEAT
The system is in heating mode.
COOL
The system is in cooling mode.
AUTO
The system is in automatic changeover mode. (The system
switches between heating mode and cooling mode to main-
tain the desired temperature.)
OFF
The system is off.
EHEAT
The system is in emergency heat mode. Only auxiliary heat-
ing is used when there is a call for heat. (This mode applies
only when the controller is connected to a heat pump
equipped with auxiliary heating).
Heating is On
Cooling is On
System operating mode
Fan operating mode (ap-
pears when the fan is in
continuous mode, disap-
pears when it is in automat-
ic mode)
Temperature adjustment
mode (appears when the
system is in automatic
mode, disappears when it
is in manual mode)
Auxiliary heating is On
Appears when the
temperature setpoint
is displayed
Indoor temperature
400-280-014-A (TH146-P-2H1C) ENG.fm Page 9 Wednesday, May 23, 2007 4:12 PM