LockStateConnect LS-90 User manual
Communicating Thermostat -
TheLS-90 has 2 RTM-1 radio ports. These allow your
thermostat to communicate with other systems. Depending on
your area Power Company, programs may be available to
connect your thermostat to power grid status information. This
can make it easy for you to moderate your energy use at peak
hours and use power when it is less expensive.
The RTM-1 ports also allow you to connect yourLS-90 to your
home WiFi network. This can give you access to your home’s
HVAC system even when you are away. It can also give you
access to web based efcient energy management sites that
can help you save money and protect the environment. RTM-1 port
PG 20
Customer support:877-254-5625 or www.LockStateConnect.com
PG 1
LS-90 Operation Guide
The LS-90 programmable communicating
thermostat operates via a high-quality, easy-
to-use touch screen. To program or adjust
your LS-90, simply touch your finger or the
stylus firmly to the screen. The screen will
automatically light up and you will hear a
“beep.” The screen will respond differently to
different types of touches, so you may want
to experiment with both your finger and with
the stylus, which is included with the LS-90,
to see what works best for you.
ENGLISH
pg16
pg17
pg17
Control
bar
Statement of use: 100% Compatible with all popular
residential HVAC systems; 24VAC single, two, three stage
conventional heating systems (gas/oil/electric), heat pumps
(single and two stage compression) and single or two stage
auxilliary heat (electric or fossil), zoned forced air and
zoned hot water (2 or 3 wire), millivolt systems (with 24VAC
adapter), one or two stage cooling, and hybrid systems.
H
Menu
button
+/- Temp
adjust
buttons
Power
Button
controls the
LS-90 Mode
Home
button
HVAC
Status
indicator
SAVE
ENERGY
HVAC
STATUS
MENU
NORMAL
$0.05 KW
Power Status Normal $.05/kW h
H
EAT
12:30pm
5/25 WED
TA
RG
ET
77
o
TEM
P
H
U
M
ID
23
%
FAN
o
F
Wire
Reset
button
Save
Energy
button
Power Grid
status
indicators
top cover
bottom
cover
Touch screen
terminals
PG 2
PG 2
CONTROL SCREENS
Before you operate the LS-90 please get familiar with these basic control screens. All the LS-90
functions are accessed through these screens. HOME pg2, MENU pg3, and MANUAL pg4. The
LS-90 touch screen technology allows you to select (by touching) an item and change it using the +/-
buttons on the control bar. All user inputs use this method. If you want to change it, touch it.
The HOME screen is displayed when
the unit is operating. Touching the green
HOME icon on the control bar will
always return you to this screen.
To set a Mode:
Press the Power button on the control
bar. Touch the desired mode from the
choices displayed at the bottom COOL,
HEAT, AUTO or OFF.
Touch HOME when done.
Set the time by touching the hour or
minute and the +/- buttons to change.
Your LS-90 is now controlling your HVAC.
HOME Screen
NORMAL
$0.05 KWA
Power Status Normal $.05/kWh
OFF
12:30pm
5/25 WED
TARGET
77o
TEMP
HUMID
23%
FAN
o
F
Thermostat Mode
indicator
Message
area
Radio
icon
Fan icon
access fan
controls
Power
Company
info area
Current Room
Temperature
Touch this or the +/- buttons
to temporarily modify
target temp setting
Time
Touch this
to set time
Day
Touch this
to set day
POWER
button
mode
control
pg17
Increase
temp
HOME
MENU
Decrease
temp
pg16
PG 2
PG 2
PG 3
MENU Screen The MENU screen is the gateway to many functions of the LS-90. It is
displayed when you press the purple MENU button on the control bar to the right side of the screen.
Note page numbers for further info about each function.
F˚/C˚
COMFORT
HUMIDIFY
HVACSET-UP
PROGRAM
INFORMATION
NETWORK
CALIBRATE
CONSUMABLES
12:30p WED 72 .
Calibration control
Use this to calibrate your LCD
display match to another device
pg15
Network control
Use this to configure network
connections
pg14
Information access
Use this to access info screens
from network connections
pg14
Set
o
F -
o
C
Touch this to set
temperature display
pg9
Lock Control
pg14
Consumables
UV Bulb, Filter,
and Humidifier pad
remindersTimer set
pg11
Chirp set
Touch this to turn the
audible chirp on or off
pg9
HVAC SET-UP
Use this to set
your LS-90 to control
your HVAC system
(displayed in OFF only)
pg12-13
Program
Use this to set a daily
time/temp schedule
(displayed in HEAT or
COOL modes only)
pg6-7
Comfort setting
Use this to select
efficiency or comfort
pg8
Humidity control
Use this to select MIN
and Max humidity
pg10
PG 4
PG
4
MANUAL Screen The Manual Screen control screen is where you can make
temporary changes to your LS-90’s operation. The LS-90 has 6 manual override commands. These
are accessed by pressing the +/- buttons
or touching the current temperature on the
HOME screen.
IMPORTANT: The Mode must be in
HEAT or COOL to access the manual
screen.
Temporary OVERRIDE -
• Press the + / - buttons to select your
desired temporary Target Temperature.
• Press HOME to return to operation.
The TEMPORARY icon will display
indicating you have modied the Target
Temperature for the current Time Slot only.
HOLD -
This will hold the target temperature you set indenitely, until you turn it off. Take care using the HOLD
function. To set a hold, touch HOLD to initiate a hold temperature. You can use the +/- buttons to select
your hold temperature. The HOLD icon will display on the HOME screen indicating you have changed the
Target Temperature. The system will HOLD this temperature until you return to this screen and de-select
HOLD, by touching it. (HOLD is also canceled when you set the mode to OFF).
EMER HEAT
HOLD HOLIDAY
PROGRAM VACATION
FRESH AIR
HEAT
o
F
Vacation
preset temp
Activates
HOLIDAY
program
set-up
holiday
PROGRAM
Holds current
until you remove
HOLD
Current Target
Temperature
use the +/- buttons
to temporarily modify
target temp setting
FRESH AIR
for HEAT or COOL
AUX heat
for HEAT Pumps
temp indefinitely
PG 4
PG 4
PG 5
HOLIDAY PROGRAM - This is a single program that repeats day after day until you turn it off. It
supersedes the weekly program. To modify it touch PROGRAM on the MANUAL screen. It uses the
Calendar method for programming (see pg7 ).
VACATION - This function will hold a pre-set temperature until you turn it off. The preset is saved for
next time.
FRESH AIR - If you have a fresh air bafe connected to the EX terminal, the LS-90 will use this
outside air source as the 1st stage of heating or cooling. Useful in desert climates where outside air
temp can change very quickly or just to freshen indoor air quality.
EMER HEAT - This is available if you have a HEAT PUMP with auxiliary heat. When you select this
your HEAT PUMP is disabled and auxiliary heat is your sole source of heat. This manual override
setting stays active until you turn it off. (This command is not displayed if you do not have a heat
pump). Remember auxiliary heat is more expensive than the heat pump.
Auto Run the pre-set program
The LS-90 comes pre-programmed with an Energy-StarTM approved program. This program is
recommended by the EPA for energy efciency. We strongly recommend that you Auto-Run this
program for one week, and see if it works for you. If it does not t your needs you can always input a
custom program.
• To Auto-Run the Energy-StarTM program, press and select HEAT or COOL with the mode
selection. Set the time and Day and Press HOME. The unit is now running the Energy-StarTM
program.
PG 6
PG 6
MENU Functions
PROGRAM The LS-90 is designed for
fast and easy programming with a simple, on-
screen interview . Just answer the
questions and the LS-90 takes care of the
rest. Acalendar option is also available
for ne-tuning. HEAT and Cool are
programmed separately.
Programming Using the Interview
Method (Fastest and Easiest ):
1. Make sure the LS-90 is in either HEAT or
COOL using the MODE button .
2. Press MENU on the control bar and then touch PROGRAM in the upper left of the screen. The
PROGRAM BY INTERVIEW screen will come up.
3. Read each question and ll-in your answers by touching the answer in brackets <78o> to highlight
and using the +/- buttons to adjust. (Press and hold +/- buttons for faster scrolling)
4. Touch (the scroll down) arrow in the lower right corner of the screen to go to the next set of
questions and continue answering. Use (scroll up) to go back to a previous question.
5. Once the interview is complete, press HOME to return to the Home screen.
If you want to change entries just go back to step 1 and modify your answers.
Scroll control
INTERVIEW SCREEN
Scroll control
Interview
Calendar
PG 6
PG 6
PG 7
The LS-90 will generate a simple program for you. It will assume you are home on the weekend and
just apply your wake-up and evening temp choices. Your LS-90 is now programmed and ready to go.
No additional updates are needed. If you would like to ne-tune the LS-90 programming, including
adding or deleting time periods, or reviewing your schedule, please refer to the instructions that follow
regarding programming using the Calendar method.
Calendar Programming Method -
You can use the Calendar screen to review
your current LS-90 schedule, or to make
changes after programming in Interview
mode. To create a whole new program:
(With the LS-90 in HEAT or COOL mode)
1. Press MENU and then touch PROGRAM
in the upper left of the screen.
2. Touch the CALENDAR icon on the
left side of the screen. A schedule of times
slots with temperatures for today will appear
on the screen.
3. Select a time period or temperature by
touching it, and use the +/- buttons to adjust
up or down. (Press and hold down +/-
buttons for faster scrolling.)
<Monday>
COPY>
HEAT
7
:
00am 75
o
F
9
:
00am 55
o
F
11
:
55am 75
o
F
2
:
55pm 85
o
F
MTW
I
A
B
delete
CALENDAR SCREEN
copy these
time/temps to
the next day
DAY advance
to next day
Calendar
Interview
A/Bselector
- use this
to make
and save
an alternate
program
touch here to
create a new
time slot
PG 8
PG 8
PROGRAM cont.
4. You can ADD additional time slots (up to seven in a day) by touching a blank line, and then
adjusting the time and temperature with the +/- buttons. To DELETE a time slot, highlight and then
touch the TRASH CAN icon in the lower left of the screen .
5. Touch the left < or right > arrows next to the day of the week to go to the next or previous day and
continue programming.
To COPY one day’s programming to the next day, touch COPY> on the bottom right of the screen.
The information for the current day will be copied to the next day and will appear on the screen.
6. Press HOME to return to the Home screen.
A/Bprogram - The LS-90 can hold 2 complete weekly programs in memory. Prog A is the default. The
interview program is stored in prog A. To switch to the B program touch the A/Bicon.
COMFORT The Comfort Settings on the LS-90 allow you to maintain consistent comfort with
the highest levels of temperature control precision, accuracy and energy efciency.
HVAC CYCLING: This feature allows you to set the desired variance in temperature between the
LS-90 setting and the room temperature required before the heating or cooling system will turn on—
from 0.5° to 2.0° F (.25° to 1° C). For example, if HVAC CYCLING is set to 2.0° F and the LS-90 is
set to 70°F, the heat cycle will not start until the room temperature drops to 68°. Similarly, the cooling
system will not kick-in until the room temperature increases to 72°F. The HVAC shuts off at the target.
PG 8
PG 8
PG 9
To set/adjust HVAC CYCLING:
1. Press Menu and then touch “COMFORT.”
2. Touch the temp offset setting.
3. Use the +/- buttons to raise or lower the variance setting—from 0.5° to 2.0° F.
4. Press HOME to return to the Home screen.
2ND STAGE ON AT : This feature allows you to adjust the settings that control second stage heating
and cooling depending upon the climate you live in. This can be modied for maximum efciency or
comfort. It is displayed if you have congured a multistage system in HVAC SET-UP.
To set/adjust 2ND STAGE ON AT:
1. Press Menu and then touch COMFORT
2. Touch and highlight the user setting (next to 2ND STAGE ON AT ).
3. Use the +/- buttons to raise or lower the setting—from 2.0° to 4.5°F (1° to 2.5° C).
4.Press HOME to return to the Home screen.
Chirp set - Touch this to turn the audible chirp sound on or off.
F/C Set - Touch this to switch the temperature display scale from oF to oC .
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