ThermoPlus AS2
User Operating Instructions
Programmable Room Thermostat
The ThermoPlus AS2 is a battery powered Programmable
Room Thermostat that has been designed to make its operation
very simple for the householder. The built in automatic clock
means it will not need setting or adjusting for BST and GMT time
changes.
The ThermoPlus will provide a pre-programmed temperature
profile preset by your installer and day-to-day user adjustments
are carried out using just three buttons.
Being battery powered, the ThermoPlus AS2 is particularly
suitable for use as a replacement for older style room
thermostats, without the need to disturb existing wiring.
The ThermoPlus AS2
The instructions contained in this user guide are designed
to help with the programming and operation of the unit.
Part 1 of these instructions explains the day to day
operation of the AS2 (page 3)
Part 2 of these instructions describes programming the
AS2 (page 7)
1 2 3 9
4 6 8
5
7
1 Plus '+' Button
2 LED Indicator lights
3 Installer Display
4 'Warm/Cool' Button
5 Minus '-' Button
6 Standby Time/Set Button
7 Increase/Decrease Buttons
8 Prog/Exit Button
9 Front flap shown open
2
Part 1 - Day to Day operation
The ThermoPlus AS2 has been designed to be a simple to use
thermostat, requiring minimal user intervention with a preprogrammed heating profile. Simple temperature adjustments
can be easily carried out by using the '+' and '-' buttons. The
indicator lights react to any temporary user adjustments, with
the LED indicators working in the following way;
'Warm' is shown by two red lights and 'Cool' is shown by a single
blue light. The centre button marked 'Warm / Cool' allows you to
toggle between the warm and cool settings. When one or more
red lights are on, you can increase the temperature by pressing
the '+' button. For example, press once to go up by 1°C or press
twice to go up by 2°C.
When the two or three red lights are on, the temperature can
also be lowered by using the '-' button. For example, press once
to go down to the warm setting temperature and press again to
go down to 1°C below warm setting temperature. (Maximum
adjustment to warm temperature +/- 2°C). The blue light
indicates the unit is working to the lower set temperature.
Please note that the '+' or '-' buttons will have no effect on the
lower temperature setting.
Under the flap is a blue button (6). During the summer, or when
you want your central heating off for long periods, for example if
you go on holiday, press the blue button and close the flap.
When you want to go back to normal operation, open the flap
and press the blue button again, remembering to close the flap
once finished.
Both the Warm and Cool temperature settings can be
permanently adjusted, this operation is detailed on page 5.
3
Power Down Mode
During normal operation the AS2 will go into Power Down
Mode, this is to maximise the life of the 3 x AA batteries fitted.
Normal operation will continue during this mode, and the
heating will be unaffected. The result of the Power Down Mode
will mean that the LED indicators will not be displayed and LCD
will not be illuminated, although the 'Warm' or 'Cool'
temperature will be displayed.
To 'wake up' the AS2 press the 'Warm / Cool' button for 5
seconds, this will then illuminate both the LED and LCD
displays for a period. Any adjustment can then be made, the
Power Down Mode will commence again approximately 8
seconds after the last button press.
4
Warm and Cool Temperature Adjustment
The Warm and Cool target temperature settings on the
ThermoPlus AS2 are fully adjustable. To change a target
temperature it is first necessary to press the centre button to
bring up the 'Warm' or 'Cool' setting (indicated by the red or blue
LED indicators).
By using the up / down keys under the flap the Warm / Cool
temperature can be increased or decreased to the desired
temperature setting. See page 6.
PLEASE NOTE – it is not possible to set the warm setting to
below that of the cool setting or vice versa.
Once a new temperature has been set in either the Warm or
Cool setting the AS2 will continue to use this setting until the
next manual adjustment.
Press here to select Warm or Cool
5
Warm and Cool Temperature Adjustment
To increase
Press
To decrease
Press
6
Audible Feedback
All buttons on the AS2 give an audible confirmation when
pressed. A short bleep means 'Yes', a longer buzz means 'No' the setting / adjustment cannot be done.
Frost Protection
The blue button situated under the flap will initiate the frost
protection mode, when pressed the word 'STANDBY' will
appear on the display, the thermostat has been preprogrammed with a frost protection temperature level of 7°C,
this can be adjusted by using the up and down arrow buttons.
Minimum setting 5°C. It is not possible to set a frost protection
temperature above the cool setting.
Part 2 - Programming Mode
The ThermoPlus AS2 has been designed for minimal user
intervention, however should any changes to the existing
programme be required please
press button 6 and 8
simultaneously to enter the
programming mode, this will allow
you to;
Ÿ Check the current time /
date / year
Ÿ Check the current profile
Ÿ Set a new pre-set profile
Ÿ Set a user defined profile
Please note: Upon completion of any of the adjustments
above, please ensure that you exit the programming mode by
pressing buttons 6 and 8 simultaneously.
6
8
7
Time and Date Check
The Thermoplus AS2 thermostat has a built in automatic clock
adjusting for BST & GMT time changes and has been preset
with the current time and date during manufacture. No
alteration should be required to the time and date, however if
any modification is required please refer to the flowchart below.
Open
Cover
Enter
programming
mode
by pressing
buttons
6 & 8
simultaneously
DATE
flashes,
Adjust
using
UP/DOWN
buttons
Press
SET
Press
TIME
Press
SET
MONTH
flashes,
Adjust
using
UP/DOWN
buttons
Exit
programming
mode
by pressing
buttons
6 & 8
simultaneously
Press
SET
HOUR
flashes,
Adjust
using
UP/DOWN
buttons
24hr clock
Press
SET
Press
EXIT
MINUTE
flashes
Adjust using
UP/DOWN
buttons
Press
SET
YEAR
flashes,
Adjust
using
UP/DOWN
buttons
Press
SET
8
Setting Heating Profiles
The ThermoPlus AS2 contains a selection of five preset and one
user definable profile options, one of these will have been set by
the Installer. Care should be taken to ensure a profile is selected
that suits your lifestyle the best. Profiles one to five are detailed on
pages 10 to 12. If none of the preset profiles meet your
requirements it is possible to set a user defined profile, full details
are given on pages 13 to 14.
Open Cover
Enter programming mode by pressing
buttons 6 & 8 simultaneously
Press PROG
Press SET
Select the required profile by using the UP / DOWN buttons
Press SET
To review preset
profiles 1 to 5 press
UP button (7)
Press EXIT
Exit PROGRAMMING mode by pressing
buttons 6 & 8 simultaneously
repeatedly
9
Heating Profiles
The ThermoPlus AS2 has six heating profiles, five are fixed and one is
adjustable. Profile 'ONE' has been set as the default and is detailed below.'
During installation a heating profile should have been set to best match your
requirements; illustrations of the present below shown are profiles.
1
PROFILE
24 HOUR
2
PROFILE
24 HOUR
TIME
PROFILE
WARM
COOL
TIME
PROFILE
WARM
COOL
ONE – DEFAULT
EVERY DAY 06:00 WARM
TIME PROFILE
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 00
2
1
TEMPERATURE PROFILE
START STATUS
22:00 COOL
PROFILE TWO START STATUS
EVERY DAY 06:00 WARM
TIME PROFILE
1
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 00
TEMPERATURE PROFILE
08:00 COOL
17:00 WARM
22:30 COOL
10
3
PROFILE
24 HOUR
4
PROFILE
5/2 DAY
TIME
PROFILE
WARM
COOL
MON - FRI
SAT/SUN
WARM
SAT/SUN
WARM
PROFILE THREE START STATUS
EVERY DAY 06:00 WARM
TIME PROFILE
1
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 00
TEMPERATURE PROFILE
08:00 COOL
11:30 WARM
13:30 COOL
17:00 WARM
22:30 COOL
START STATUS START STATUS
MON - FRI 06:00 WARM SAT/SUN 07:00 WARM
08:00 COOL 22:00 COOL
11:30 WARM
13:30 COOL
17:00 WARM
22:30 COOL
TIME
1
COOL
COOL
TIME PROFILE
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 00
2
TEMPERATURE PROFILEMON - FRI
11
PROFILE FIVE START STATUS START STATUS
MON - FRI 06:00 WARM SAT/SUN 07:00 WARM
08:00 COOL 22:00 COOL
17:00 WARM
5
PROFILE
5/2 DAY
MON - FRI
SAT/SUN
WARM
COOL
SAT/SUN
WARM
COOL
Profiles one to five have fixed periods, no alteration to the Warm / Cool
times can be made, if it is necessary to make any alterations then
profile six must be used. Profile six will allow you to set up a profile to
your exact requirements. Please refer to the flowchart on page 14.
1TIME
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 00
22:30 COOL
TIME PROFILE
TEMPERATURE PROFILEMON - FRI
12
User Definable - 7 Day Programming
Profile 6 will allow you to set up a profile to your exact
6
PROFILE
requirements. By using the flow chart on page 14, you
can adjust the Warm / Cool timing periods as required.
If only one or two Warm / Cool periods are required on any day
set the times accordingly and set the remaining Warm and Cool
start times to be exactly the same as each other.
This will cancel the 2nd or 3rd Warm / Cool periods altogether
for the day concerned. Unused periods will be shown by a
series of dashes on the settings screen. Press SET and the next
day and SET appears in the display. Press SET to adjust the
next days settings or EXIT to return to the main menu. To do this
press SET until the next day and SET appears in the display.
Unused periods will be shown by a series of dashes on the
setting screen.
If one or two periods have been set and you wish to return to
three periods in 24 hours then pressing the up arrow when the
dashes appear after the last Cool setting will bring back the
hidden Warm / Cool settings.
13
START STATUS
PROFILE SIX
DEFAULT 06:00 WARM
EVERYDAY 08:00 COOL
11:30 WARM
13:30 COOL
17:00 WARM
22:30 COOL
6
8
START FLOW CHART
Open Cover
Enter PROGRAMMING mode by pressing
buttons 6 & 8 simultaneously
Press PROG
A
Adjust the WARM start time by
using the UP / DOWN buttons and
confirming with the SET button
Adjust the COOL start time by
using the UP / DOWN buttons and
confirming with the SET button
Repeat for Periods 2 & 3 (or if
not needed equalise the remaining
Warm and Cool times to cancel
and press SET)
B
SET is displayed on the screen
1. To continue programming to the
next day press SET and go to 'A'
2. To copy the altered settings to
the next day press the DOWN
button and go to 'C'
3. To finish programming go to 'D'
C
Press COPY and repeat for each
day to be copied
Press SET
Select PROFILE SIX by using the
UP / DOWN buttons and press SET
When finished press the
DOWN button and go to 'B
D
Press EXIT twice and exit
programming mode by pressing
buttons 6 and 8 simultaneously
14
GENERAL INFORMATION
Resetting the AS2 Transmitter
Electronic equipment can in some circumstances be affected
by electrical interference. If the display becomes frozen or
scrambled; or if you wish to revert back to the default settings
please use the following procedure.
PLEASE NOTE: Do not attempt to reset without batteries being
fitted. Using this procedure will restore the ThermoPlus AS2 to
the original factory programme settings, the time setting will
also default to midnight (00:00) on 1 January 2006.
15
Resetting the ThermoPlus AS2
Ÿ On the ThermoPlus AS2 press the 'UP' and 'DOWN'
arrow buttons together:
Ÿ Then release the buttons and the thermostat will return
to preset factory settings.
Ÿ Reset the time and date as shown on page 8.
To reset press
16
Battery Replacement
The ThermoPlus AS2 uses 3 x AA (LR6) batteries. The batteries
supplied with the unit should last for approximately two years.
When the batteries are nearing the end of their life a 'LOW BAT'
message will flash on the display.
To change the batteries it is necessary to remove the AS2 from
the wall, to achieve this first press the RELEASE BUTTONS
located under the unit and pull the AS2 away from the mounting
plate by gently pulling up.
Before removing the old batteries please wait for at least 15
seconds after the last button was pressed. Remove old
batteries and ensure the LCD display has gone blank before
fitting the new batteries.
Replace with three new AA size alkaline batteries, ensure they
are fitted correctly as shown by the marking positioned between
the battery terminals. Once batteries have been fitted, replace
the AS2 to the mounting plate, ensuring that the two guide lugs
are fitted into the corresponding slots in the top of the mounting
plate. Now push the AS2 until the release button clicks into
place.
WARNING: You must ensure that the AS2 is always running on
3 x AA batteries and when the battery low message is displayed
it is important that they are changed as soon as possible. This is
to preserve the secondary internal reserve battery which is nonreplaceable.
For best results use alkaline batteries rather than zinc
carbon batteries.
17
NP0 08 23 44 00 0
Secure Meters (UK) Ltd
Secure House, Lulworth Close,
Chandler's Ford,
Eastleigh, SO53 3TL, UK
t: +44 1962 840048 f: +44 1962 841046
www.securemeters.com
Part Number 82344 Issue 7
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