Venstar T2300FS User manual

Venstar Inc. 08/07
Use with most Air Conditioning & Heating Systems including: 1 or 2 Stage
Electric Cooling & 2 Stage Gas Heating, Heat Pump, Electric or Hydronic Heat.
residential
HEAT
COOL HEAT
PUMP
PROGRAMMABLE
7-Day
PROGRAMMABLE
7-Day
up to
& 2-cool
up to
& 2-cool
2-heat
2-heat
THERMOSTAT
Thermostat
Thermostat
Digital
Digital T2300FS
Back-Lit display
One For All Works with
Virtually All Equipment
Non-Volatile memory
Holiday/Vacation Programming
Keypad lockout
Dual setpoint with
Adjustable Deadband
‘O’ or ‘B’ Terminal
Optional: Remote Sensor
Ready
Dry Contact Equipped
Mounts Flush with the Wall
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
OWNER’S
MANUAL
OWNER’S
MANUAL

Table Of Contents
FRONT PANEL
DISPLAY
QUICK START Set the clock and go
BASIC OPERATION
PROGRAMMING Occupied / Unoccupied
OVERRIDING THE DAILY
SCHEDULE
ADVANCED SETUP
ABOUT ADVANCED FEATURES
& OPERATION
WARRANTY
2
3
6
8
9
15
20
27
14
CAUTION Follow Installation Instructions carefully.
DISCONNECT POWER TO THE HEATER -
AIR CONDITIONER BEFORE REMOVING
THE OLD THERMOSTAT AND INSTALLING
THE NEW THERMOSTAT.
WARNING
SELECTING THE HEAT
OR COOL MODE
7
P/N T2300FS
Venstar Inc. 08/07
Page 1

Liquid Crystal Display
with Thermoglow
Up/Down Buttons
Mode Button
Override Button
Heat or Cool Indicator
Red = Heat, Green = Cool
Temperature Sensor
Front Panel
Page 2

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.
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).
Display
88
88
88
unoccupied
Program
Fan On Service Filter
On
Am
Pm
COOL
HEAT
Override
Locked
ONOFF
AUTO
Stop
Start
SetupSuMoTuWeThFrSa
123
I2:00
Page 3

Display
88
88
88
unoccupied
Program
Fan On Service Filter
On
Am
Pm
COOL
HEAT
Override
Locked
ONOFF
AUTO
Stop
Start
SetupSuMoTuWeThFrSa
123
I2:00
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.
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

88
88
88
unoccupied
Program
Fan On Service Filter
On
Am
Pm
COOL
HEAT
Override
Locked
ONOFF
AUTO
Stop
Start
SetupSuMoTuWeThFrSa
123
I2:00
Display
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.
Start &Stop icons - Pages 10-11
Appear when programming occupied time periods.
Page 5

Press the MODE and OVERRIDE
buttons at the same time for two
seconds to enter Setup screens.
Press the MODE and
OVERRIDE buttons
at the same time to
return to normal
operation.
Quick Start Set the Clock and Go
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.
Press
MODE
Setting the Clock
Setting the Day
MODE
OVERRIDE
MODE
OVERRIDE
Am
Setup
I2:00
SetupMo
Tip: To change hours quickly,
press and hold the OVERRIDE
button and press the UP or
DOWN buttons.
During Setup & Programming:
Pressing the UP or DOWN
butt ons will modify th e
flashing selection.
buttons.
To adjust the
Clock or Day use
Page 6

Selecting the Heat or Cool Mode
70 68
Pm
HEAT
Mo
I2:00
70
76
Pm
COOL
Mo
I2:00
70
76
68
Pm
COOL
HEAT
AUTO
Mo
I2:00
70
76
68
occupied
ProgramOn
Pm
COOL
HEAT
Mo
1
I2:00
70
Pm
OFF
Mo
I2:00
Press
MODE
Press
Press
Press
MODE
MODE
MODE
The HEAT setting indicates the
temperature the room has to
reach before the furnace will
turn on to heat the room.
Heating Only
The COOL setting indicates the
temperature the room has to
reach before the air conditioner
will turn on to cool the room.
Cooling Only
OFF indicates both heating
and air conditioning
systems are turned off.
Off
AUTO will automatically select
heat or cool based on room
temperature demand.
Heating or Cooling
Time Schedule for
Heating or Cooling
Program On will activate the
stored timer operation for the
heating and cooling
setpoints (occupied or
unoccupied periods).
Select Mode by Pressing the MODE Button
Page 7

Selecting Your Desired Temperature
(adjusting the setpoints)
Basic Operation
70
76
68
Pm
COOL
HEAT
AUTO
Mo
I2:00
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.
buttons.
Adjust the desired
set temperature with the
70
76
Pm
COOL
Mo
I2:00
HEAT OR COOL MODE
Pressing the UP or DOWN buttons in Heat or Cool mode will
adjust only the heat or cool set temperature.
buttons.
Adjust the desired
set temperature with the
Page 8

Programming Occupied & Unoccupied Periods
Press
Press
Press
Press
Continued
MODE
MODE
MODE
MODE
Occupied 1
74
Occupied COOL 1
74
72
Occupied COOL
HEAT
1
85
unoccupied COOL
Press the MODE button. While holding MODE,
press the UP button for two seconds to enter
time period programming.
MODE
Select the maximum # of
occupied periods to be
used on any one day.
Typically, most installations
use only Occupied 1.
(1,2 or 3)
Adjust the cooling
setpoint for Occupied 1.
(35 - 99, OF )
Use the Programming Worksheet on the back cover
to help with this section.
Page 9
Adjust the heating
setpoint for Occupied 1.
(OF, 35 - 99 )
Adjust the cooling
setpoint for unoccupied
periods.
(35 - 99, OF )

MODE
Programming Occupied & Unoccupied Periods
Press
Press
Press
Press
Press
Continued
MODE
MODE
MODE
MODE
55
unoccupied
HEAT
Occupied
Mo
1
Occupied
Am Start
Mo
1
7:00
Occupied
Pm Stop
Mo
1
6:00
Occupied
ON
Mo
1
85
COOL
Select the day for
Occupied 1.
(Mo - Su)
Select Occupied 1 to run
on this day (On), or not to
run on this day (Off).
Off
On
Adjust the heating set-
point for Unoccupied
periods.
Adjust the start time
for Occupied 1.
Adjust the stop time
for Occupied 1.
Page 10
(OF, 35 - 99 )

Programming Occupied & Unoccupied Periods
Press
Press
Press
Press
Continued
If No is selected:
Press
If Yes is selected:
MODE
MODE
MODE
MODE
MODE
Tu
Occupied
Tu
1
Occupied
Am Start
Tu
1
7:00
Occupied
Pm Stop
Tu
1
6:00
Select the day
for Occupied 1.
(Tu - Su)
Adjust the stop time
for Occupied 1.
Adjust the start time
for Occupied 1.
Yes
No
Select Yes to copy the
previous day’s program
to the day displayed.
Selecting Yes, then pressing MODE will
copy the previous day’s program. If yes
is selected again, or each time, this
routine will repeat.
The copy command becomes available after the maximum # of
occupied periods are programmed in a day. This example uses
only one occupied period.
Page 11

Programming Occupied & Unoccupied Periods
Press
If Yes is selected:
Selecting Yes, then pressing MODE will
copy the previous day’s program and then
will ask the same copy question again. If
yes is selected each time, this routine will
repeat until Saturday is copied to Sunday.
After Saturday is copied to Sunday, the
copy command is unavailable.
Off
On
Yes
No
MODE
Press
Press
If No is selected:
MODE
MODE
Occupied
Tu
1
ON
We
Select Yes to copy the
previous day’s program
to the day displayed.
on this day (On), or not to
run on this day (Off).
Select Occupied 1 to run
If No is selected, as in previous steps, flashing prompts will
appear to input start and stop times for Occupied 1. If more
than one occupied period was selected in the first programming
step (page 9), then the cool and heat setpoints, and start and
stop times for each additional occupied period will be prompted.
MODE
After programming for all seven days is complete, press
the MODE and UP buttons at the same time for two seconds
to leave the Setup screens. If no buttons are pressed, the
display will leave the setup screens after 30 seconds.
Page 12

Programming Occupied & Unoccupied Periods
PROGRAMMING TIPS
Page 13
If only the Occupied 1 period is selected in the first programming
step (page 9), Occupied 2 & 3 programming steps are skipped.
Furthermore, if Occupied 2 is selected, Occupied 3 programming
steps are skipped.
Heat & Cool setpoints for Occupied 1 are the same for every day of
the week. If desired, Heat & Cool setpoints for Occupied 2 & 3 can
be adjusted differently for each day of the week.
If the start time is set later in the day than the stop time, the
program will run from the start time to midnight and from midnight
to the stop time on the same day. For example: 9pm start, 8am
stop, on Monday. In this example the program will run from 12am
Monday to 8am Monday and again from 9pm Monday to 12am
Tuesday.
Unoccupied Operation: The unoccupied settings take effect at
all times when: (1) the program is on and (2) the current time is
outside a preset occupied period. For this reason start and stop
times are not necessary for unoccupied time periods.
If the same start and stop times are programmed for an occupied
period, then it will run 24 hours.
If one occupied period starts and stops within another occupied
period the lower occupied # has priority. For example: If Occupied
3 is programmed to be on for 24 hours, and Occupied 2 is program-
med to run that day, then the Occupied 2 setting will take over for
Occupied 3 between Occupied 2 start and stop times.

Unoccupied Operation - During programmed, unoccupied periods,
pressing the OVERRIDE button will temporarily force the thermostat into
Occupied 1 comfort settings for 30 minutes. The remaining Override time
will alternate with the clock (refer to the second display below). The
Override timer can be set up to a maximum of four (4:00) hours, in
increments of 30 minutes. If the timer has been set for the maximum time,
the next press of the OVERRIDE button will reset the timer,
returning the thermostat to the correct time period program for the day.
Occupied Operation - During programmed, occupied periods, a press of
the OVERRIDE button will force the thermostat into an unoccupied period
for the remainder of the day. During this forced unoccupied period the
OVERRIDE button will operate as described above.
The OVERRIDE button may be used to interrupt the normal time
schedule programming of the thermostat. Override may only be used
when the thermostat is running the time schedule, in Program On
mode.
65
85
55
unoccupied
ProgramOn
Pm
COOL
HEAT
Stop
Su
I2:00
73
74
72
occupied
ProgramOn
Pm
COOL
HEAT
Override
Su
1
0:30
I2:00
Overriding the Daily Schedule
Press
OVERRIDE
Page 14

Advanced Setup
Press
Press
Press
Press
Continued
Select fan operation:
Fan On or Fan Auto
NOTE: Each step # is located at
the top right corner of the
display for easy reference.
Fan On
Fan Auto
MODE
MODE
MODE
MODE
I
Am
Setup
I2:00
2
SetupMo
3
AUTO
Setup
Hp
4
OFF
Setup
MODE
OVERRIDE
Press the MODE and OVERRIDE
buttons at the same time for 10
seconds to enter Advanced
Setup screens.
Page 15
Tip: To change hours quickly, press and
hold the FAN button in and press
the UP or DOWN buttons.
Adjust the time of day
clock.
Select the day of the
week.
On
Off
ON = Heat Pump
operation
OFF = Gas Electric
operation

5
6
7
8
9
Press
Press
Press
Press
Press
Continued
MODE
MODE
MODE
MODE
MODE
0
Setup
Eh
OFF
Setup
2
Setup
2
COOL
HEAT
Setup
6 Cy
Setup
Advanced Setup
Select the reversing valve
polarity for Heat Pump
operation:
O = Energize in cooling
b = Energize in heating
(Step 5 only appears if
heat pump is on in step 4)
b
O
Page 16
Select Electric Heat operation:
On = 1st stage electric heat
Off = 1st stage gas heat
On
Off (Step 6 only appears if
heat pump is off in step 4)
Adjust the deadband
for the 1st stage.
(1 - 6 )
Adjust the minimum
difference between
cooling & heating
setpoints.
(0 - 6 )
(d1, d, 2 - 6)
Select the cycles per
hour limit:
d=cycles per hour
limit defeated
d1=d + defeat 5 min.
compressor lockout

Advanced Setup
Press
Press
Press
Press
Press
Continued
Adjust the preoccupancy
fan purge timer:
0 - 3 hours, 0:00 = off
Select the unit ID for
‘Soft Start’:
0 = off
Each # = 30 second delay.
(0 - 99)
Press
OVERRIDE
MODE
MODE
MODE
MODE
MODE
I0
Setup
0:00
I i
ON
Setup
I2
Service Filter
Setup
0
I3
Service Filter
Setup
0
0
I4
Start
Setup
Sof
Reset the counter to 0 to
remove the Service Filter
icon from the display.
(0 - 1950 hours)
Adjust the number of
hours, in increments of
50, the fan will run
before the Service
Filter icon appears on
the display: 0 = off.
Page 17
On
Off
Select backlight operation:
ON - Light continuously
OFF - Light for 8 seconds
after a button press

Advanced Setup
Press
Press
Press
Select the security level:
0=No security in effect
1=Setpoint range limited
2=1+ program on all times
3=2 + prohibits setpoint
changes
Adjust the maximum
allowable heat setpoint
when security is in effect.
(Step 18 only appears
if step 17 is not 0).
Press
Continued
Yes
No
MODE
MODE
MODE
MODE
F
I5
Setup
I6
Setup
O
I7
Locked
Setup
Sec
80
i8
HEAT
Locked
Setup
hi
To view Outdoor or Duct sensors
press and hold the MODE button.
Optional Remote Sensor:
YES = Control to Remote
Room Sensor
NO = Read Only Outdoor or
Duct Sensor
(35 - 99 )
Page 18
C
F
Select thermostat
operation in degrees
Fahrenheit or Celsius.

Advanced Setup
Adjust the minimum
allowable cool setpoint
when security is in effect.
(Step 19 only appears
if step 17 is not 0).
Press
Step # Description Range Factory Default
Advanced Setup Table
65
i9
COOL
Locked
Setup
lo
MODE
OVERRIDE
Press the MODE and OVERRIDE
buttons at the same time for two
seconds to leave the Setup screens.
If no buttons are pressed, the display
will leave the setup screens after 30
seconds.
24 hour
Mo - Su
Auto / On
Off / On
O / b
Off / On
1 - 6
0 - 6
d, d1, 2 - 6
0:00 - 3:00
Off / On
read only
0 - 1950
0 - 99
F / C
Yes / No
0 - 3
35 - 99
35 - 99
12:00 am
Mo
Auto
Off
O
Off
2
2
6
0:00
On
- -
0
0
F
No
0
80
65
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Time of Day
Day of the Week
Fan Operation
Heat Pump
Reversing Valve Polarity
Electric Heat
Deadband/Temp. Swing 1st Stage
Minimum Heat/Cool Differential
Cycles Per Hour
Fan Purge
Thermoglow Backlight
Reset Service Filter Icon
Service Filter Run-Time Set
Soft Start
Fahrenheit or Celsius
Thermostat Control to Remote Sensor?
Security Level
Max Heat Setpoint
Min Cool Setpoint
Page 19
(35 - 99 )