Operation Manual
 Battery Handling
Batteries, rechargeable or not, should not be disposed 
of into ordinary household waste. Instead, they must be 
recycled properly to protect the environment and cut down 
the waste of precious resources.
Your local waste management authority can supply details 
concerning the proper disposal of batteries. 
In compliance with the EU Directive 2006/66/EC, the button 
cell battery located on the printed circuit board inside the 
product, can be removed at the end of the product life, by 
professional personnel only.
Note: Settings 
changes can be 
made via the 
MiTime unit
MiStat
Current room temperature
+hr key: Press to add up 
to 3 hours to the current 
period or to get instant 
1 to 3 hours if currently 
off (see step 8).
 key: Press to 
toggle between 
Comfort setting, Eco 
setting and Home 
(Room thermostat 
only). See table below.
 key: Press to 
cancel +hr and display 
home. (Cylinder 
thermostat only)
Select key: Press 
to open and save 
editor screens
Current Setting, 
see table below
Current set temperature
Call for heat indication. 
This flame will be visible 
when the room 
temperature is below 
the set temperature.
+ & - keys: 
Press to change 
the current 
temperature or 
turn the heat on 
if currently off
RF transmission indication. 
The RF symbol will be 
visible as follows,
Short flashes indicates an 
RF transmission.
Long flashes indicates an RF 
transmission issue.
Symbol in 
display
Function Description
Comfort setting
Selects the comfort setting. The pre-set value is used 
each time when activated, adjustable within the menu
Eco setting
Selects the Eco setting. The pre-set value is used each 
time when activated, adjustable within the menu.
None Home screen
Indicates that the pre-set temperatures were changed 
via +/- key
Press Select to enter a specific 
Setting. Options shown below:
→
Feature: Description: Factory Pre-Set:
Help Tips Describes the button functions
Holiday switch 
off 
In the period until holiday starts the product will operate normally.If holiday 
is disabled manually or terminates automatically, the mode before start 
of holiday will be re-instated.An enabled holiday will be indicated with a 
suitcase symbol in the top line. If holiday is active, in the Set: line the holiday 
end date will be indicated. In the Summary screen the suitcase will be visible 
together with the holiday temperature.
Status Enable or disable holiday mode.  Disabled
Zones Holiday mode can be applied to a specific zone or 
all zones
All zones
Holiday start 
time (From)
Set the time for the start of your holiday Current time - 
nearest hour
Holiday start 
date (From)
Set the date for the start of your holiday Today
Holiday end time 
(To)
Set the time for the end of your holiday Current time - 
nearest hour
Holiday end date 
(To)
Set the date for the end of your holiday Today + 1 week
Time and date settings
Set time To set time of day Factory set
Set date To set date Factory set
Daylight saving To enable or disable daylight saving Enabled
Clock format To select 12h or 24h clock mode 12hr
Feature: Description: Factory Pre-Set:
Programme 
Timetable
On & Off times for the current period can be
modified. See description in ‘Step 4’
Copy days Will copy the current day to one or more other days
Add Period Adds a Time event. It will be added at the correct 
position within the day. There is a maximum of 4 
periods.
Remove Period Removes the selected period. There needs to be at 
least 1 period
Change 
Timetable Type
The visible day-blocks available in "programme 
timetable" can be defined, see Step 4
Individual days Each day can be programmed individually 
Week and 
weekend
Mon… Fri and Sat… Sun can be programmed as 2 
blocks 
Default
All week Mon…Sun can be programmed as one block
Stored 
programmes
MiTime contains 3 pre-set programmes. These 
programmes can be modified according to personal 
needs and can be stored by using a name. Via this 
name they can also be re-loaded. Once a programme 
has been modified, the original factory pre-set will no 
longer be available unless a System Reset is applied - 
see Installation Guide Step 4.
Programme 1
Load stored
programme
A pre-set programme can be loaded
Save current 
programme
The current programme can be saved by name (Each 
pre-set program includes: Individual days, week/
weekend, all day and custom day schedules)
Step 6: Additional User Settings
Step 7: Keys and Display - MiStat Step 8: +hr (Boost) Step 9: Changing the Batteries
RF Pack: MiStat N110R, MiStat C110C 
How do I know when to change 
the batteries?
When the batteries start to run low a battery icon will 
flash in the display to indicate “low battery”, during 
this time the MiStat will function normally. When the 
battery icon alone is alone is shown in the display, the 
batteries are completely exhausted and the MiStat will 
cease to function (see below). Re-activate by replacing 
the batteries.
How to replace the batteries
Remove the battery covers as shown. Replace the batteries with 2 x 1.5V IEC LR6 (AA) Alkaline batteries ensuring 
correct orientation. Replace the battery covers pressing fully home.
Battery Covers: 
Slide outwards  
to remove
MiStat Rear
MiStat
MiStat
MiStat
→
→
MiStat
MiStat
✎ Troubleshooting:
Press +hr to Boost
MiStat
Press +/- to adjust +hr period between 0 and 3 hours
Press ( ) to confirm
Now the Boost is running. The time will be counted 
down each hour.
Once the time has elapsed, control returns to the 
prior temperature screen.
The Boost can be cancelled by pressing the (
) key 
or by setting the +hr period to 0.
1 Setting temperature values is restricted
a
Are Minimum/Maximum temperatures activated? 
see Installation Guide Step 8.
2
NO SIGNAL is visible on the screen, no reaction on 
key presses anymore
a
Is the receiver powered? (Red signal lamp should 
be visible)
b
Is the room thermostat powered? see Homeowner 
Guide Step 9.
3 LOCKED is displayed on the room themostat
a see Installation Guide Step 8 - Screen Lock
4 Is the battery symbol visible?
a Replace batteries, see Homeowner Guide Step 9.
5
STARTING is visible on the thermostat screen, no 
reaction on key presses anymore
a
Is the receiver powered? (Red signal lamp should 
be visible)
6
WAIT is visible on the thermostat screen, no reaction 
on key presses anymore
a
Is the receiver powered? (Red signal lamp should 
be visible)
Step 5: Period Settings
Stored programmes
MiTime contains 3 pre-set programmes. An 
example is shown below. These programmes can 
be modified according to personal needs and 
can be stored by using a name. Via this name they 
also can be reloaded. Once a programme has 
been modified, the original factory pre-set will no 
longer be available. On a System Reset, only the 
current loaded programme will be replaced with 
the factory setting – see Installation Guide Step 4.
1st On 6:30am 6:30am 7:00am
1st Off 8:30am 8:30am 9:00am
2nd On 4:30pm 4:30pm 4:00pm
2nd Off 10:30pm 10:30pm 11:00pm
All week Week & Weekend
Mon-Sun Mon-Fri Sat-Sun
Programme 1  
Example:
Step 4: Prog. Timetable
→
→
→
Zone = Heating
Help text: Use left/right buttons to 
select the days you want to change
Period 1 settings: describes the current timetable 
settings, e.g. Heating has been programmed to 
turn On at 6:30am and go off at 8:30am
Period 2 settings: describes the current timetable 
settings, e.g. Heating has been programmed to 
turn On at 4:30pm and go off at 10:30pm
Press select (
) when highlighted to adjust 
settings (see Step 5)
Up to 4 periods can be programmed
Arrow denotes that further options are 
available if you scroll down.
Timetable day range: Monday to 
Friday (Week and weekend)
Options: Individual days (7day), Week and 
weekend (5/2day),  All week (24hr). The 
available blocks depend on the selection 
in menu “change timetable type” 
Link to Copy days
Day range & period
Help text: Use left/right buttons to 
change fields
Period settings: On at 6:30am and Off 
at 8:30am
Highlight shows adjustable field: 
Use up/down buttons to adjust values 


