REMEHA iSense Manual

Remeha iSense
Installation and Service manual

2
Remeha iSense
Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2. Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.1 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.2 Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
3. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
3.1 Location of the thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
3.2 Installation and connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
3.3 Location of the outside sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
4. Prior to first use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
4.1 Setting language, time and date. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
4.2 Default setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
5. Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
5.1 Creating or changing a clock program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
5.2 Setting continuous temperatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
5.3 Holiday program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
6. Using the iSense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
6.1 Selecting a program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
6.2 Temporarily changing the temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
6.3 Fireplace mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
6.4 Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
7. Changing usage settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
7.1 Setting the display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
7.2 Setting button locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
7.3 Setting the language. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
7.4 Setting the usage mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
7.5 Resetting the factory settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
7.6 Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
7.7 Restore connection to iBase (iSense RF only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
7.8 Setting the date and time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
8. Comfort correction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
9. Hot water settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
9.1 Preventing legionella . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
9.2 Controlling the tap water temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
10. Central heating settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
11. Selecting the control strategy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
11.1 Five control strategies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
11.2 Setting the control strategy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
11.3 Specific settings for weather-compensated control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
11.4 Heating curve – an example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
12. Frost protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
12.1 "System" frost protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
12.2 "Room" frost protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

3
13. Digital input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
13.1 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
13.2 Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
14. Installer settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
14.1 Telephone number for service message. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
14.2 Service messages on or off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
14.3 Pin code for menus for the installer and system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
15. Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
15.1 Fault messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
15.2 Service message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
16. Problems and solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
17. Menu structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
18. Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

4
Remeha iSense
1. Introduction
The Remeha iSense is a timer thermostat with many enhanced
functions.
The iSense is supplied in OpenTherm and RF variants:
• iSense OpenTherm
• iSense RF (wireless), with the iBase RF transmitter
This installation and service manual describes all the functions
of the iSense. (OpenTherm and RF)

5
2. Overview
The iSense is menu-controlled, which means it is very simple to
operate: it only has three buttons.
T001034-06-A
Mode button B
Mode button A
Temperature TimePictograms
Menu Program
Textbox
menus 2.1 Display
Pictograms
Clock program active
Clock program A active
Clock program B active
Continuous day temperature
Continuous night temperature
Frost protection
Summer mode
Manual setting
Holiday program
DHW standby function switched off
Room temperature set
Current room temperature
Current outside temperature
Central heating boiler is on
Pictograms not shown
Controller requesting heat
Central heating boiler on for hot water
Central heating boiler on for central heating
Button locking enabled
Warning symbols
Water pressure in central heating system too low
Central heating boiler requires servicing
Battery in controller almost empty
General warning symbol
No wireless connection
2.2 Buttons
The function of button A and button B depends on the task you
are carrying out. The function is shown in the display,
immediately above the buttons.
iButton C is a push-turn button. You press it to confirm
choices, such as menu selections.
By turning it you can perform various tasks such as scrolling
through menus or changing values such as the temperature,
time, date and language.
A
T000059-06-B
BC

6
Remeha iSense
3. Installation
T001046-C
3.1Location of the thermostat
iSense OpenTherm and iSense RF
The iSense is set to room control by default, which means
that the inside temperature is used to control the central
heating. That is why it is best to locate the iSense on an
internal wall in the room in which you spend the most time,
such as the living room.
Do not locate the controller too close to heat sources (fireplace,
radiator, lamp, candles, direct sunlight etc.), or in places where
it may be draughty.
For iSense RF only
The following also apply for the iSense RF:
• Position the iSense at least 1 metre from equipment with
electromagnetic emissions such as Washing machines,
Tumble driers, wireless telephones, TVs, computers, micro-
wave ovens, etc.
• Position the iSense so that it has good reception. Take
account of the fact that objects containing metal will affect
the reception. These include steel-reinforced concrete, mir-
rors and windows with a metal coating, insulating films etc.
iSense RF wireless range
The range of the iSense RF in buildings is generally 30 metres
Note!
This value is purely an indication. The actual range of the RF
signal depends strongly on the local environment. Remember
that the number of walls and ceilings (metal or otherwise) can
have a (considerable) impact on reception. Other objects that
contain metal may also impact reception. These include mirrors
and windows with a metal coating, insulating films etc.
iThe signal strength can be viewed via Menu > Information.
3.2Installation and connection
The following must be done before you install and connect the
iSense:
• Adjust the boiler so that it can be connected to an
OpenTherm thermostat. Consult the boiler documentation
for this process.
• Turn off the boiler.
Now proceed as follows:
1. Open the housing by pulling the front and the base plate
apart.

7
2. Attach the base plate of the controller to the wall using
the screws and plugs supplied. Ensure that the boiler's
connecting wires are protruding through the hole in the
base plate.
3. Connect the thermostat to the boiler OpenTherm
connection and the controller OT connection.
OpenTherm is polarity insensitive. The wires may therefore
be swapped.
4. Place three AA batteries in the thermostat if required.
These are not provided. The batteries ensure that the clock
keeps running when the boiler is switched off. The batteries
also power the backlight for the iSense for boilers that do
not have OpenTherm Smart Power. If you have a boiler
with Smart Power, then the backlight for the iSense also
works without batteries.
(iSense RF only) Place 3 AA batteries in the thermostat.
These are required to operate the iSense RF.
iThe programs that are set are not lost when the boiler or
the iSense is switched off (even if there are no batteries).
The iSense is now connected and ready for use. The
iSense RF automatically starts communicating with the
iBase.
T001035-06-B
3
2x
2
2x
4
2x
1
OT
T001036-06-C
OTDigi
T001042-B

8
Remeha iSense
3.3 Location of the outside sensor
An outside temperature sensor is not supplied as standard with
the iSense. You only require this sensor if you want weather-
compensated control of the inside temperature.
The following guidelines apply with regard to choosing
a location for an outside temperature sensor:
• Install the outside sensor on the north or north-west side of
the home, away from direct sunlight.
• The sensor must be positioned at least 2.5 metres above
ground level.
• Do not install the outside sensor near windows, doors,
ventilation grills, extractors, etc.
Consult the documentation for your boiler for information on
connecting an outside temperature sensor.
T001043-06-B
>2.5m

9
4. Prior to first use
4.1 Setting language, time and date
The menu for selecting the language (international version) or
setting the time (Dutch version) appears when you connect the
iSense.
1. Select the desired language if applicable by turning button
C and then push button C to confirm.
2. Follow the instructions on the display to select the time,
year, month and day.
The controller is now ready for use. After installation, the
default clock program is activated (see paragraph 4.2).
The temperature is now controlled by this clock program.
iThe thermostat automatically switches between summer
time and winter time settings.
4.2 Default setting
Room control
The iSense is set to room control by default (central heating
is controlled on the basis of the inside temperature). Weather-
compensated control of the boiler (on the basis of the outside
temperature) is also possible (with outside sensor).
Clock program
The default clock program sets the temperature each day as
follows:
• 06:00 – 19:00: 20°C (7 days)
• 19:00 – 23:00: 21°C (7 days)
• 23:00 – 06:00: 15°C + (7 days)
You can of course adapt the clock programs to your own
requirements. See Chapter 5.

10
Remeha iSense
5. Setting
5.1 Creating or changing a clock program
A clock program automatically controls the temperature for a
day, and can be set for each individual day. You can adjust the
default clock program or enter a completely new program.
i
The iSense starts pre-heating prior to the set time
by default, so that the room has reached the desired
temperature at the correct time. Instructions on how to
change this pre-heating setting can be found in Chapter 10.
iSetting the clock program indirectly determines when DHW
standby is active (see paragraph 9.2).
Making an overview
It is useful to draw up your own overview with switch times:
what temperature is needed and at what time?
This will of course depend on your presence at home, your
wake-up times, and so on. You can set up to six switch times
per day. See the adjacent table.
Time MO. TU. WE. TH. FR. SA. SU.
7:00
9:00
11:00
13:00
15:00
17:00
19:00
21:00
23:00
0:00
T001003-06-A
Creating a new clock program
1. Select Menu > Program > Clock program > New time.
2. Select an initial program if appropriate (Daytime home,
Midweek home or Weekend home). You can now create
your own clock program based on this program. Press
button C to confirm.
3. Go to the day for which you want to set the clock program.
Press button C to confirm.
4. Go to the switch time you want to set.
Press button C to confirm.
iYou can use the Remove button to remove the selected
switch time.
5. Use button C to set the time and the corresponding desired
temperature.
6. Once you have set all switch times for a particular day, you
can copy the settings for that day to other days:
- Go to the day.
- Press Copy.
- Select the day(s) to which you want to copy the settings
using button C and press Save.
7. Go to the day. Then press button C.
8. Go to step 3 to set the next day, or press Back to close this
menu.
Changing an existing clock program
1. Select Menu > Program > Clock program > Change.
2. Go to the day for which you want to change the clock
program. Press button C to confirm.
3. Go to the time you want to change.
Press button C to confirm.