Digital
Digital
Thermostat
Thermostat
residential
THERMOSTAT
T2300FS
7-Day
7-Day
PROGRAMMABLE
PROGRAMMABLE
up to
up to
& 2-cool
& 2-cool
HEAT
COOL
Mounts Flush with the Wall
Back-Lit display
One For All Works with
Virtually All Equipment
Control up to 2 Heat & 2 Cool Stages
7-Day Programmable
4 Settings/Day
Auto Changeover
5 minute Built-In
Compressor Protection
Self-Prompting Programming
with Copy Command
Display Either F or C
Use with most Air Conditioning & Heating Systems including: 1 or 2 Stage
Electric Cooling & 2 Stage Gas Heating, Heat Pump, Electric or Hydronic Heat.
OWNER’S
OWNER’S
MANUAL
MANUAL
Venstar Inc. 08/07
Non-Volatile memory
Holiday/Vacation Programming
Keypad lockout
Dual setpoint with
Adjustable Deadband
‘O’ or ‘B’ Terminal
Optional: Remote Sensor
Ready
Dry Contact Equipped
2-heat
2-heat
HEAT
PUMP
Table Of Contents
FRONT PANEL
DISPLAY
QUICK START Set the clock and go
SELECTING THE HEAT
OR COOL MODE
BASIC OPERATION
PROGRAMMING Occupied / Unoccupied
OVERRIDING THE DAILY
SCHEDULE
ADVANCED SETUP
ABOUT ADVANCED FEATURES
& OPERATION
WARRANTY
CAUTION
Follow Installation Instructions carefully.
DISCONNECT POWER TO THE HEATER AIR CONDITIONER BEFORE REMOVING
THE OLD THERMOSTAT AND INSTALLING
THE NEW THERMOSTAT.
Venstar Inc. 08/07
WARNING
2
3
6
7
8
9
14
15
20
27
P/N T2300FS
Page 1
Front Panel
Liquid Crystal Display
with Thermoglow
Up/Down Buttons
Mode Button
Override Button
Heat or Cool Indicator
Red = Heat, Green = Cool
Temperature Sensor
Page 2
Display
Am
Start
Pm
I2:00
unoccupied
88
Program
Fan On
Mode Indicators - Page 7
Selects the operational mode of the equipment.
HEAT - Indicates the heating mode.
COOL - Indicates the air conditioning mode.
AUTO - Indicates the system will automatically
changeover between heat and cool modes
as the temperature varies.
PROGRAM ON - Indicates the time period
program is enabled to run.
OFF - Indicates heating and cooling are turned off.
Clock with Day of the Week - Page 6
Indicates the current time and day. This clock is
also used to program the time period schedules.
Stop
SetupSuMoTuWeThFrSa
123
On
Service Filter
88
COOL
Locked
Override
AUTO
ONOFF
HEAT
88
Room Temperature Display
Indicates current room temperature and displays
the outdoor temperature when selected (page 17).
Desired Set Temperature - Page 8
Indicates desired room temperature(s).
Page 3
Display
Am
Start
Pm
I2:00
unoccupied
88
Program
Fan On
Override icon - Page 14
Indicates the program is currently being overridden
for up to four hours.
Occupied & Unoccupied icons - Pages 9-12
Indicates the program number: Occupied 1,2,3 or
Unoccupied.
Setup icon - Pages 15-19
Indicates the thermostat is in the advanced setup
mode.
Stop
SetupSuMoTuWeThFrSa
123
On
Service Filter
88
COOL
Locked
Override
AUTO
ONOFF
HEAT
88
Fan On icon - Page 15 Indicates constant,
continuous fan operation. When Fan On is
not lit - indicates the fan will only operate when
necessary to heat or to cool.
Page 4
Display
Am
Start
Pm
I2:00
unoccupied
88
Program
Fan On
Service Filter icon - Page 17
Appears when the filter should be serviced under
normal conditions. Adjustable from 0 - 1950 hours
or blower operation.
Locked icon - Page 25
Indicates keypad has been locked.
Stop
SetupSuMoTuWeThFrSa
123
On
Service Filter
88
COOL
Locked
Override
AUTO
ONOFF
HEAT
88
Start & Stop icons - Pages 10-11
Appear when programming occupied time periods.
Page 5
Quick Start Set the Clock and Go
MODE
OVERRIDE
Press the MODE and OVERRIDE
buttons at the same time for two
seconds to enter Setup screens.
During Setup & Programming:
Pressing the UP or DOWN
bu ttons w ill m odify th e
Setting the Clock
Tip: To change hours quickly,
press and hold the OVERRIDE
button and press the UP or
DOWN buttons.
Setting the Day
I2:00
Am
Setup
SetupMo
flashing selection.
To adjust the
Clock or Day use
Press
MODE
buttons.
Press the MODE and
OVERRIDE buttons
at the same time to
return to normal
MODE
OVERRIDE
operation.
The thermostat is preprogrammed from the factory to operate
one or two stage equipment* without the need for further
programming. To optimize the installation of this thermostat,
follow the instructions in the Advanced Setup section.
* The thermostat is not preprogrammed from the factory to operate
electric heat or heat pump systems. To control these systems,
follow the steps in the Advanced Setup section, pages 15 & 16.
Page 6
Selecting the Heat or Cool Mode
Select Mode by Pressing the MODE Button
Pm
I2:00
Heating Only
The HEAT setting indicates the
temperature the room has to
reach before the furnace will
turn on to heat the room.
Cooling Only
The COOL setting indicates the
temperature the room has to
reach before the air conditioner
will turn on to cool the room.
Heating or Cooling
AUTO will automatically select
heat or cool based on room
temperature demand.
Time Schedule for
Heating or Cooling
Program On will activate the
stored timer operation for the
heating and cooling
setpoints (occupied or
unoccupied periods).
OFF indicates both heating
and air conditioning
systems are turned off.
Off
Mo
70
Pm
I2:00
Mo
70
Pm
I2:00
Mo
70
Pm
I2:00
Mo
occupied
1
70
ProgramOn
Pm
I2:00
Mo
70
HEAT
68
76
COOL
76
COOL
AUTO
HEAT
68
76
COOL
HEAT
68
OFF
Press
MODE
Press
MODE
Press
MODE
Press
MODE
Page 7
Basic Operation
Selecting Your Desired Temperature
(adjusting the setpoints)
AUTO OR PROGRAM MODE
Pressing the UP or DOWN buttons in Auto or Program mode
will adjust both the heat and cool set temperatures
simultaneously.
I2:00
Mo
70
Pm
76
COOL
AUTO
HEAT
68
HEAT OR COOL MODE
Pressing the UP or DOWN buttons in Heat or Cool mode will
adjust only the heat or cool set temperature.
Adjust the desired
set temperature with the
buttons.
I2:00
Mo
Pm
70
76
COOL
Adjust the desired
set temperature with the
buttons.
Page 8
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