Heatmiser edge User Manual

1

edge

Model: edge

2

Model: edge

Table of Contents

Locking/Unlocking the Edge

Holiday

Optional Settings Explained

Optional Settings - Feature Table

Adjusting the Optional Settings

Recalibrating the Edge

Error Codes

Wiring Diagrams

24

25

26-27

28

29

30

30

31-34

1

2

3-4

5-6

7

Product Image

Table of Contents

What is a Programmable
Room Thermostat?

Installation Procedure

Mode Select

Mode 1 - Thermostat

LCD Display

Power On/OFF

Setting the Time & Date

Temperature Display

Pairing Accessories

View Accessories

Removing Accessories

Edit Comfort Levels

Temperature Control

Temperature Hold

Advance

Frost Protection

8

9-10

11

12

13

14-15

16

17

18-19

20

21

22

23

Mode 2 - Time Clock

LCD Display

Setting the Switching Times

Timer Advance

Timer Override

Optional Settings Explained

Optional Settings - Feature Table

Adjusting the Optional Settings

Replacing the Battery

35

36-37

38

39

39

40

40

41

42

3

Section Header

What is a Programmable Room Thermostat?

A programmable room thermostat is both a programmer and a room thermostat.

A programmer allows you to set “On” and “Off” periods to suit your own lifestyle.

A room thermostat works by sensing the air temperature, switching on the heating when
the air temperature falls below the thermostat setting, and switching it off once this set
temperature has been reached.

So a programmable room thermostat lets you choose what times you want the heating
to be on, and what temperature it should reach while it is on. It will allow you to select
different temperatures in your home at different times of the day (and days of the week)
to meet your particular needs and preferences.

Setting a programmable room thermostat to a higher temperature will not make the
room heat up any faster. How quickly the room heats up depends on the design and size
of the heating system.

Similarly reducing the temperature setting does not affect how quickly the room cools
down. Setting a programmable room thermostat to a lower temperature will result in the
room being controlled at a lower temperature, and saves energy.

Section Header

4

Model: edge

The way to set and use your programmable room thermostat is to find the lowest
temperature settings that you are comfortable with at the different times you have
chosen, and then leave it alone to do its job.

The best way to do this is to set the room thermostat to a low temperature
– say 18°C , and then turn it up by 1°C each day until you are comfortable with the
temperature. You won’t have to adjust the thermostat further. Any adjustment above
this setting will waste energy and cost you more money.

You are able to temporarily adjust the heating program by overriding or using the
temperature hold feature. These features are explained further on pages 20 and 21
of this manual.

Programmable room thermostats need a free flow of air to sense the temperature,
so they must not be covered by curtains or blocked by furniture. Nearby electric
fires, televisions, wall or table lamps may also prevent the thermostat from working
properly.

5

Section Header

Installation Procedure

This thermostat is designed to be flush mounted and requires a back box of 35mm
(minimum depth) to be sunk into the wall prior to installation.

Step 1

Using a small screwdriver, slightly loosen the screw from the bottom face of the
thermostat. You can then carefully separate the front half from the back plate.

Step 2

Place the edge LCD front plate somewhere safe.
Terminate the edge as shown in the diagrams on page 31-34 of this booklet.

Step 3

Screw the edge back plate securely into the back box.

Step 4

Replace the front of the thermostat onto the back plate, by locating the pins in the
socket then insert the top edge first. Now push in the bottom edge, securing it in
place with the retaining screw.

Do

Mount the edge at eye level.
Read the instructions fully so you get the best from our product.

Don’t

Do not install near to a direct heat source as this will affect functionality.
Do not push hard on the LCD screen as this may cause irreparable damage.

Section Header

6

Model: edge

1 2

3 4

7

Section Header

Edge can either be used as a thermostat or a time clock. Thermostat mode
is the default setting.

To change between thermostat & time clock modes, follow these steps.

• Use the ‘Left/Right’ arrow keys to highlight then press and hold the

button for 3 seconds ..................................................................................................

At this point the screen will go blank showing only ‘SETUP’ and ‘CLOCK’.

• Tap either of the ‘Up’ or ‘Down’ arrow keys to highlight ‘SETUP’, then hold

the

key for 10 seconds ................................................................................................

The edge will factory reset then provide 2 selectable mode options.

• Use the Left / Right keys to scroll between modes ...............................................

Mode 1 = Thermostat
Mode 2 = Time Clock

Note: the selected option will flash.

• Press the key to confirm selection ........................................................................

The edge will reset all parameters and restart in the selected mode.

Note: The Mode Select function will reset all parameters (Wireless Air Sensors
and Window/Door Contacts excluded) that were entered during the set-up
operations. These processes must be repeated after the restart has completed.

Mode Select

Section Header

8

Model: edge

Mode 1 - Thermostat

9

Section Header

5 61 2 3 4

7
8

9

10

11
12

15

14

16

17

18

13

Section Header

10

Model: edge

1. Day Indicator - Displays the day of the week.

2. Holiday – Displayed when the thermostat is in holiday mode.

3. Clock - Time displayed in 24 hour format.

4. Flame Symbol – Displayed when the thermostat is calling for heat and flashes when
optimum start is active.

5. Frost Protection – Displayed when frost protection is enabled or activated by
a Window/Door Switch.

6. Floor Limit Symbol – Displayed when the floor probe has reached the floor temperature limit
configured in the setup menu.

7. Advanced Until - Displayed when the edge is advanced to the next programmed comfort level.

8. Hold Left - Displayed when a temperature hold is active, the remaining time will be shown.

9. Sensor Warning - Flashes on screen when the edge has failed to receive a signal from a Wireless
Sensor or Window/Door Switch.

10. Floor/Room Temp & Set - Indicates the displayed sensor mode and when changes are being
made to the current set point.

11. Active Status - Indication for ‘Preheat’ and ‘Frost Protection’ modes.

12. Program Indicator - Displayed during programming to show which period is being altered.

13. Main Menu – Highlighted text indicates selected option.

14. Keypad Lock Indicator – Displayed when the keypad is locked.

15. Temperature – Displays the current sensor temperature.

16. Temperature Format - Degrees Celsius or Fahrenheit.

17. Window Icon - Displays when Window/Door Switch is triggered.

18. Time/Day/Month/Year - Displays when setting the Clock/Calender or a Holiday Period.

LCD Display

9

11

Section Header

Power On/Off

The heating is indicated ON when the flame icon is displayed.

When the Flame Icon is absent, there is no requirement for heating to achieve the
set temperature but the edge remains active.

To turn the edge off completely, scroll to the Power Icon and hold the

key for approximately 3 seconds until the display goes blank .............................

The display and heating output will be turned OFF.

To turn the edge back ON, press the key once ..........................................................................

Thermostat completely OFF Thermostat powered ON

Section Header

12

Model: edge

Setting the Time and Date

To set the clock, follow these steps.

• Use the ‘Left/Right’ arrow keys to highlight

then press and hold the

button for 3 seconds .............................................................................................

At this point the screen will go blank showing only ‘SETUP’ and ‘CLOCK’.

• Tap the ‘Up’ followed by ‘Right’ keys to highlight ‘CLOCK’ .............................

• Press

to confirm selection (‘Hour’ digits will now flash) ...........................

• Use the ‘Up/Down’ arrow keys followed by

to set the ‘Hours’ ................

• Use the ‘Up/Down’ arrow keys followed by

to set the ‘Minutes’ ............

Repeat the previous two steps to set the date (‘Day, Month & Year’).
Display will go blank once completed.

• Press the ‘Down’ arrow key followed by

to return to the

main display ..................................................................................................................

13

Section Header

This edge can be configured for different sensor options such as built sensor, floor
sensor or both. The display will clearly indicate which sensor is being used by showing
either ‘ROOM TEMP’ or ‘FLOOR TEMP’ to the left the actual value.

When the edge is set to use both the air & the floor sensor, the room temperature
will be displayed by default.

To view the current floor temperature, press and hold the Left and Right arrow

keys for 5 seconds, the floor temperature will then be displayed ..............................

Temperature Display

Room Temperature Floor Temperature

Section Header

14

Model: edge

Pairing Accessories

You can pair a total of 16 accessories to a single edge thermostat.

Wireless Air Sensor

Once a remote sensor is added, the edge will automatically display an average
temperature between the ‘Wireless Air Sensor’ and the on-board sensor inside
the thermostat. Averaging will also be calculated between multiple Air Sensors.

Window/Door Wireless Contact Sensor

If any one of the ‘Window/Door’ contacts is broken, the edge
thermostat will be alerted and will activate ‘Frost Protection’ mode.

The display will now show the icon (right) to indicate a window or door has
been opened. Heating will not resume while this icon remains on screen.

Pairing the Air Sensor and Window/Door Contact.

• Use the ‘Left/Right’ arrow keys to highlight

then press and hold

the button for 3 seconds to turn off the display .....................................

• Tap the ‘Up’ key to select ‘Setup’ then press

...............................................

• Press the ‘Down’ key until you see the letter ‘P’ displayed at the top of
the screen then press

.........................................................................................

Wireless Air Sensor. Door/Window - Wireless Contact Sensor

(Not available in Time Clock mode).

15

Section Header

If the sensor has successfully paired, the LED will go out after a few seconds. The
thermostat display will then show ‘01:P’ to indicate that the first accessory has
joined. If countdown time elapses before all accessories have been paired,
restart the countdown to add further sensors following the previous steps.

The thermostat will now start a 99 second countdown. During this time multiple
sensors can be added.

Number of accessories
connected.

Pair/Reset
button

Pair/Reset
button

LED Indicator

Countdown time

• On the ‘Air Sensor & Window/Door Contact’, press and hold the pairing
button for 5 seconds. The LED will glow red to indicate pairing status

Window/Door Wireless Contact Sensor Wireless Air Sensor

Section Header

16

Model: edge

View Accessories

• Use the ‘Left/Right’ arrow keys to highlight . Press and hold

for 3 seconds to turn off the display ........................................................................

• Tap the ‘Up’ key to select ‘Setup’ then press

............................................................

• Press the ‘Down’ key until you see the letter ‘A’ displayed at the top of
the screen, then press

....................................................................................................

• Use the ‘Left/Right’ arrow keys to scroll through the list of attached accessories.

A ‘Wireless Air Sensor’ will show the current temperature. The ‘Window/Door Contact’
will display current open or closed status by showing ‘OP’ = Open, or ‘CL’= Closed.
If the edge loses connection with an accessory, the display will show “--”.
A battery warning symbol will be appear when an accessory reports low power.
When this happens change the Lithium Cell CR2302 3V battery as soon as possible.

Example showing ‘Wireless Air Sensor’.

Accessory ID Number

Low Battery Warning

Current Status

17

Section Header

Removing Accessories

Pair/Reset
button

Pair/Reset
button

LED Indicator

There are two ways to remove an accessory from the edge thermostat.

On the Sensor/Switch

• Press and hold down the pairing/reset button for 15 seconds on the
‘Sensor/Switch’. LED indicator will flash 3 times to confirm reset.

At this point the ‘Sensor/Contact’ will notify the edge that it has left, and will automatically
be removed from the ‘Accessory Menu’.

On the edge thermostat

• Follow the steps on page 16 to enter the accessory menu.

• Press the ‘Left/Right’ arrow keys to view the accessory that will be deleted.

• Press and hold down the

button for 10 seconds until the sensor

disappears from the menu ....................................................................................................

Note: You will also need to reset the sensor at this point.

Window/Door Wireless Contact Sensor Wireless Air Sensor

Section Header

18

Model: edge

Edit Comfort Levels

The edge offers three program mode options; Weekday/Weekend,
7 Day and 24 Hour programming. There is also the option to use the edge as
a manual thermostat.

The thermostat is supplied with comfort levels already factory programmed, but
these can be changed easily. The default times and temperature settings are;

07:00 - 21°C (Level 1) 09:00 - 16°C (Level 2) 16:00 - 21°C (Level 3) 22:00 - 16°C (Level 4)

Unused levels must be set to --:-- so that the edge will skip these and continue
on to the next programmed time.

For Weekday/Weekend programming, the four comfort levels are the same for Mon-Fri, but
can be different for Sat-Sun. For 7 Day programming each day of the week can have four
different comfort levels. In 24 Hour mode all days are programmed with the same comfort levels.

• To program the ‘Comfort Levels’, use the ‘Left/Right’ keys to scroll to ‘EDIT’ ......

• Press

to confirm selection ......................................................................................................

• Use the ‘Left/Right’ keys to select day/period of week (the selection will flash) ......

• Press

to confirm selection ......................................................................................................

‘Level 1’ will now flash and the current time and temperature setting will
be shown.

• Press

to alter ‘Level 1’ settings ................................................................................................

19

Section Header

• Use the ‘Up/Down’ keys to set the ‘Hours’ .............................................................

• Press

to confirm .................................................................................................................

• Use the ‘Up/Down’ keys to set the ‘Minutes’ .........................................................

• Press

to confirm .................................................................................................................

• Use the ‘Up/Down’ keys to set the temperature .................................................

• Press

to confirm the settings ........................................................................................

• Press the ‘Right’ arrow key ..................................................................................................

‘Level 2’ will now flash and the current settings will be displayed.

• Press

to alter ‘Level 2’ settings ......................................................................................

Repeat these steps to set all comfort levels.

For any unused periods set time to --:--

• Use the ‘Left/Right’ keys to scroll to ‘DONE’ and press

.........................

You can you set up to a maximum of 6 levels by enabling these in the feature menu
(see page 28)

Section Header

20

Model: edge

Temperature Control

The ‘Up/Down’ keys allow you to adjust the set temperature ..............................

When you press either key, you will see the word ‘SET’ and the desired

temperature value. Use the ‘Up/Down’ keys to adjust the ‘SET’ value ..............

Press to confirm settings and return to the main display .....................................

Note: This new temperature is maintained only until the next programmed comfort level.
At this time, the thermostat will revert back to the programmed levels.

Until next programmed
‘Comfort Level’ time.

Set Temperature

21

Section Header

Temperature Hold

The temperature hold function allows you to manually override the current operating

program and set a different temperature for a desired period.

• Use the ‘Left/Right’ keys to scroll to ‘Hold’ and press

....................................

• Repeatedly tap the ‘Up/Down’ keys to set the desired ‘Hold’ time
(Hours) then press

....................................................................................................

Minutes will now flash.

• Repeatedly tap the ‘Up/Down’ keys to set the desired ‘Hold’ time
(Minutes) then press

...............................................................................................

• Use the ‘Up/Down’ keys to set the desired ‘Hold’ temperature .....................

• Press

to confirm selection ..................................................................................................

You will see the ‘HOLD LEFT’ indication is displayed on screen.
The time will countdown the set duration and then revert to the normal program.

Cancel/Edit Temperature Hold

• Use the ‘Left/Right’ keys to scroll to ‘Hold’ and press

....................................

• While ‘CANCEL’ is highlighted press

to cancel ‘Hold’ and return to

normal operation .........................................................................................................................

• Alternatively, press the ‘Left’ arrow key to highlight ‘EDIT’ them press

to adjust current ‘Hold’ settings ..................................................................................

To edit ‘Hold’ settings follow the same procedure as indicated in the steps at the top
of this page.

Section Header

22

Model: edge

Advance

This feature allows the next ‘Comfort Level’ setting to be brought forward and be
active before its pre-programmed time.

Note: Multiple advances aren’t allowed.

To enable ‘Advance’

• Use the Left/Right keys to highlight ‘ADVANCE’ then press

.................

‘ADVANCED UNTIL’ time and the ‘SET’ temperature will now be displayed.

• Press

again to confirm selection ......................................................................................

To cancel ‘Advance’

• Use the ‘Left/Right’ keys to highlight ‘Advance’ then press

twice ........

• To view the ‘SET’ temperature
during ‘Advance’ tap either the ‘
Up’ or ‘Down’ key once.
Press

to exit .................................

• To change the ‘SET’ temperature
during ‘Advance’, use the
‘Up/Down’ keys followed by

to confirm ...................................

‘Advanced
Until’ time

23

Section Header

Use the ‘Left/Right’ keys to scroll to the ‘Power Icon’ ...................................................

The frost icon will toggle ON/OFF each time

is pressed ...........................................................

In this mode, the edge will display the frost icon and will only turn the heating ‘ON’
should the room temperature drop below the set frost temperature. If the heating is
turned ‘ON’ whilst in frost mode, the flame symbol will be displayed.

To cancel the frost protect mode, navigate to the ‘Power Icon’ again, then press

..........

Frost Protection Symbol

Frost Protection

Section Header

24

Model: edge

Locking the edge

The edge has a keypad lock facility. To activate the lock follow these steps.

• Use the ‘Left/Right’ keys to scroll to Hold & press

for 7 seconds ..........

The display will show 0000. At this point enter a four digit pin number.

• Use the ‘Up/Down’ keys to enter values .............................................................

• Use the ‘Left/Right’ keys to move between digits ..........................................

• Press

to confirm ............................................................................................................

The display will return to the main screen and display the keypad lock indicator ...

Note: The keypad lock indicator is only displayed when the lock is active.

• To unlock the edge press

once .................................................................................

The display will show 0000. At this point enter the four digit pin number
you set previously.

• Use the ‘Up/Down’ keys to enter values .............................................................

• Use the ‘Left/Right’ keys to move between digits ..........................................

• Press

to confirm ............................................................................................................

The display will unlock and return to the main screen.

Unlocking the edge

25

Section Header

Holiday

In time clock mode; the timed output will be turned off during the
holiday period, then return to the programmed settings once the holiday
period finishes.

In thermostat mode; the holiday function reduces the set temperature in
your home to the frost mode temperature setting that is configured in the
setup menu.

The edge will maintain this temperature for the duration of the holiday and
will then automatically return to the program mode on your return.

To set a ‘Holiday’

• Use the ‘Left/Right’ keys to highlight ‘HOLS’ then press

.............................

• Enter the return time (hours) by using the ‘Up/Down’ keys then press

to confirm ...................................................................................................................

• Enter the return time (minutes) by using the ‘Up/Down’ keys then press

to confirm ...................................................................................................................

• Repeat these steps to set ‘Day’, ‘Month’ & ‘Year’ ...................................................

The display will now show

and indicate ‘Frost Protection Active’

To view or change the ‘Set’ frost temperature while in ‘Holiday’ mode,
press the ‘Up/Down’ keys followed by

to confirm ........................................

Section Header

26

Model: edge

Optional Settings Explained

THE FOLLOWING SETTINGS ARE OPTIONAL AND IN MOST CASES NEED
NOT BE ADJUSTED.

Viewing Accessories: Current status of each accessory, remote sensors and window switches.

Pairing Accessories: to a wireless room sensor or window switch.

Temperature Format: This function allows you to select between °C and °F.

Switching Differential: This function allows you to increase the switching differential of

the thermostat. The default is 1°C which means that with a set temperature of 20°C, the
thermostat will switch the heating on at 19°C and off at 20°C. With a 2°C differential, the
heating will switch on at 18°C and off at 20°C.
Condition: Whilst “Optimum Start” is in effect the ‘Switching Differential’ shall default to 1ºC/F

Output Delay: To prevent rapid switching, an output delay can be entered. This can be set
from 00 - 15 minutes. The default is 00 which means there is no delay.
Condition: Output delay will not be in effect while ‘Optimum Start’ is running.

Temperature Up/Down Limit: This function allows you to limit the use of the up and down
keys. This limit is also applicable when the thermostat is locked and so allows limited control
of the heating system.

Sensor Selection: On this thermostat, you can select which sensor should be used. You can
select between air temperature only, floor temperature, or both. When you enable both
sensors, the floor sensor is used as a floor limiting sensor and is designed to prevent the floor
from overheating.

27

Section Header

Floor Temp Limit: When the Floor Sensor has been enabled in feature 07, you can set a
floor limiting temperature between 20-45°C, this protects the floor from overheating.
(27°C is the default).

Note: ‘Air Sensor Only’ MUST NOT be used to control electric underfloor heating.
Floor Sensor or Both should be used.

Optimum Start: Optimum start will delay enabling of the heating system to the latest
possible moment avoiding unnecessary heating and ensure the building has reached its
desired temperature at the programmed time. The thermostat uses the rate of change
information to calculate how long the heating needs to raise the building temperature 1°C.

Rate of Change: Number of minutes to raise the temperature by 1°C.

Note: The user cannot change this feature and is for information only.

Programming Mode: The following program modes are available;

• Non-Programmable – Basic up/down override temperature control.

• 5/2 Day Programming – 4 levels for the weekdays and 4 different levels for
the weekend.

• 7 Day Programming – 4 levels for each day.

• 24 Hours – 4 levels over a 24 hour period.

Daylight Saving Time (DST): is where the thermostat sets the clocks forward one hour from
‘Standard Time’ during the summer months, and back again in autumn, in order to make
better use of natural daylight.

Communications ID: To interface with building management systems using the standard
Modbus protocol.

Program Type: You can select between 4 or 6 program/comfort levels.

Section Header

28

Model: edge

Optional Settings - Feature Table

FEATURE

Viewing Accessory
Pairing Accessories
Temperature Format

Switching Differential
Output Delay
Up/Down Temperature Limit
Sensor Selection

Floor Temperature Limit
Optimum Start

Rate of Change
Program Mode

(DST) Daylight Saving
Communications ID

(Modbus)
Program Type

DESCRIPTION

Information only
Commences countdown from 99 – 00 seconds.
00 = °C, 01 = °F (00 = Default)

00 = 0.5°C, 01 = 1.0°C (Default) 02 = 2.0°C, 03 = 3.0°C
00 - 15 Minutes (00 = Default)
00° - 10°C (00° = Default)
00 = Built in Sensor with optional Remote Air (Default)

01 = Remoter Air Only
02 = Floor Sensor Only
03 = Built in + Floor Sensor + optional Remote Air
04 = Remote Air & Floor Sensor Only

20°C – 45°C (28°C Default)
00 = Disabled (Default) 01 = 1 Hour 02 = 2 Hours

03 = 3 Hours 04 = 4 Hours 05 = 5 Hours
Information Only
00 = 5/2 01 = 7 Day 02 = 24 Hour

03 = None programmable
00 = Disabled (Default) 01 = Enabled
01-32

00 = Disabled
00 = 4 Comfort Levels (Default)

01 = 6 Comfort Levels

SETTING

A
P

01

Menu

Entry Point

02
03
04
05

06
07

08
09

10
11

12

29

Section Header

Adjusting the Optional Settings

• Use the ‘Left/Right’ arrow keys to highlight then press and hold the

button for 3 seconds .............................................................................................

The display will go blank showing only

‘Setup’ and ‘Clock’

• Press the ‘Up’ key followed by twice

to access main feature menu .......

• Use the ‘Up/Down’ keys to scroll through features ..........................................

• Use the ‘Left/Right’ keys to change feature setting ..........................................

• When all required changes have been made press

to confirm settings

and return to the blank display .......................................................................................

• Use the ‘Down’ key to select

then press once to power on ...............

Feature Setting

Feature No.

Section Header

30

Model: edge

Re-calibrating the edge

This thermostat is factory set and need not re-calibrating under normal operation!
To calibrate, follow the step below.

• Use the ‘Left/Right’ keys to scroll to the Power Icon ...................................

• Press and hold

to turn the display ‘OFF’ .............................................................

• Press and hold the

and ‘Down’ keys together for 10 seconds ....................

The current temperature will appear on the display.

• Use the ‘Up/Down’ keys to configure the new temperature value ...............

• Press the

key to confirm the change and the display will go blank .........

• Press the

key once to turn the thermostat ‘ON’ ............................................ ...

Error Codes

E0 = The internal sensor has developed a fault.
E1 = The remote FLOOR probe has not been connected.
The remote FLOOR probe has not been wired correctly.

The remote FLOOR probe is faulty.

E2 = The WIRELESS AIR SENSOR has not been paired correctly.

The WIRELESS AIR SENSOR has lost connection to the edge.
(check batteries).
The remote WIRELESS AIR SENSOR is faulty.

The edge will display an error code if there is a fault with the temperature
sensor, these error codes are explained below.

31

Section Header

Wiring Diagram - EDGE Switch Live Output

NEUTRAL

MODBUS

INTERFACE

Model: Edge

LIVE

230V SUPPLY IN

SWITCHED LIVE TO BOILER

230VAC

RT1 - A2 A1 N LBA

This product must only be installed by a qualified electrician

and comply with local installation regulations.

Floor

Sensor

Section Header

32

Model: edge

Wiring Diagram - EDGE Volt Free Output

Thermostat & Time Clock Modes

NEUTRAL

LS & LR ARE NORMALLY THE
ROOM THERMOSTAT CONNECTIONS

MODBUS

INTERFACE

Model: Edge

LIVE

230V SUPPLY IN

VOLT FREE TO BOILER

230VAC

RT1 - A2 A1 N LBA

This product must only be installed by a qualified electrician

and comply with local installation regulations.

Floor

Sensor

LS

LR

33

Section Header

NEUTRAL

NEUTRAL

LIVE

230V SUPPLY IN

HEATING VALVE

TO BOILER

This product must only be installed by a qualified electrician

and comply with local installation regulations.

MODBUS

INTERFACE

Model: Edge

230VAC

RT1 - A2 A1 N LBA

Floor

Sensor

Wiring Diagram - EDGE to Valve

LS & LR ARE NORMALLY THE
ROOM THERMOSTAT CONNECTIONS

TO CONNECT BOILER CONSULT
BOILER MANUFACTURERS
DIAGRAM

LS L

NLR

Section Header

34

Model: edge

Wiring Diagram - EDGE Switch Live to UH8

This product must only be installed by a qualified electrician

and comply with local installation regulations.

MODBUS

INTERFACE

Model: edge

230VAC

RT1 - A2 A1 N LBA

FLOOR PROBE

NE SLL

1 2

UH8

Floor

Sensor

35

Section Header

Mode 2 - Time Clock

Section Header

36

Model: edge

1 2 3

6

5

4

7

9

10

8

11

37

Section Header

1. Day Indicator - Displays the day of the week.

2. Holiday – Displayed when the time clock is in holiday mode.

3. Clock - Time displayed in 24 hour format.

4. Advanced Until - Displayed when the edge is advanced to the next
programmed level.

5. Hold Left - Displayed when a timer override is active, the remaining time
will be shown.

6. Set - Indicates when changes are being made.

7. Program Indicator - Displayed during programming to show which period
is being altered.

8. Main Menu – Highlighted display indicates selected option.

9. Keypad Lock Indicator – Displayed when the keypad is locked.

10. Timer Status – Displays the current status of the timed output.

11. Time/Day/Month/Year - Displays when setting the Clock/Calender or a
Holiday Period.

LCD Display

Section Header

38

Model: edge

Setting the Switching Times

To program the switching times, follow these steps.

• Use the ‘Left/Right’ keys to scroll to ‘EDIT’ ..........................................................................

• Press

to confirm selection ...................................................................................................

• Use the ‘Up/Down’ keys to select the day/period to program ............................

• Press

to confirm selection ...................................................................................................

• Level ‘1’ will now be highlighted and the ‘ON’ time will be displayed.

• Press

to alter Level ‘1’ ............................................................................................................

• To set the ‘ON’ time, use the ‘Up/Down’ keys to set the hours,
followed by

, then use ‘Up/Down’ to set the minutes ..................

• Press

to confirm ......................................................................................................................

• To set the ‘OFF’ time, use the ‘Up/Down’ keys to set the hours,
followed by

, then use ‘Up/Down’ to set the minutes ..................

• Press

to confirm the settings .............................................................................................

• Press the ‘Right’ arrow key .......................................................................................................

• Level ‘2’ will now be highlighted and the current settings will be displayed.

• Press

to alter Level ‘2’ settings ...........................................................................................

• Repeat these steps to set all periods.

• To blank or set a switching level period to unused, first select the switching level
then set --:-- in place of the time.

• When all switching times have been programmed use the ‘Right’ arrow
key to highlight ‘DONE’ and press

.............................................................................

39

Section Header

Advance
Time Remaining

Output Status

Level
Advanced Until

Timer Advance

To boost the timed output ‘ON’ follow these steps.

• Use the ‘Left/Right’ keys to highlight ‘Advance’ then press

twice .........

Boost Left and the remaining time will now be displayed.

To cancel ‘Advance’

• While ‘ADVANCE’ is highlighted

press

twice .............................

To override the timed output ‘ON/OFF’, follow these steps.

• Use the ‘Left/Right’ keys to highlight ‘HOLD’ then press ................................

• Use the ‘Up/Down’ keys to set the hours then press ......................................

• Use the ‘Up/Down’ keys to set the minutes then press ..................................

• Use the ‘Up/Down’ keys to set output On or OFF then press to confirm .....

Hold Left and the remaining time will now be displayed.

To cancel Timer Override

• With ‘HOLD’ highlighted, press

twice .....................................................................

Timer Override

Section Header

40

Model: edge

Optional Settings - Feature Table

Optional Settings Explained

Programming Mode: The following program modes are available;

5/2 Day Programming - 4 or 6 On/Off switching times for the weekdays and

4 On/Off switching times for the weekend.

7 Day Programming - 4 or 6 individual On/Off switching times for each day.
24 Hours - 4 or 6 On/Off switching times over a 24 hour period.

Daylight Saving Time (DST): is where the thermostat sets the clocks forward one

hour from Standard Time during the summer months, and back again in autumn, in
order to make better use of natural daylight.

Communications ID: To interface with building management systems using the
standard Modbus protocol.

FEATURE SETTING

Program Mode 00 = 5/2 (Default),

01 = 7 Day,
02 = 24 Hour

Daylight Saving Time (DST) 00 = Disabled (Default) 01 = Enabled

Communications ID 01-32 00 = Disabled)

41

Section Header

Adjusting the Optional Settings

• Use the ‘Left/Right’ arrow keys to highlight then press and hold the

button for 3 seconds .............................................................................................

The display will go blank showing only

‘Setup’ and ‘Clock’

• Press the ‘Up’ key followed by twice

to access main feature menu .......

• Use the ‘Up/Down’ keys to scroll through features ..........................................

• Use the ‘Left/Right’ keys to change feature setting ..........................................

• When all required changes have been made press

to confirm settings

and return to the blank display .......................................................................................

• Use the ‘Down’ key to select

then press once to power on ...............

Feature Setting

Feature No.

Section Header

42

Model: edge

Replacing the Battery

In most cases the 3 volt lithium battery does not need replacing if the
thermostat has a continual power supply. Its sole purpose is to ensure correct
time keeping during a power loss to the thermostat.

To remove the battery use a small flat head screw driver or fingertip to push
back the brass retaining bracket. This will automatically release the battery.

Insert the new battery (positive side up!) by locating one end underneath
the holding clips then pushing down on the opposite end against the brass
holding bracket.

Holding clips

Brass retaining bracket

We advise that replacement of the lithium battery be

carried out by a qualified professional.

Want More Information?

PDF FAQ

Call our support team on: [phone]
Or view technical specifications directly on our website:

www.heatmiser.com

Twitter: @heatmiseruk Facebook: facebook.com/thermostats

Rev. 1.0