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7. Main remote controller operation
Legionella Prevention Mode settings (LP mode)
1. Use button F3 to choose legionella mode active YES/NO.
2. To edit the legionella function, press down the MENU button for 3 seconds and
select “hot water”, then press F4 key.
3. Use F1 and F2 keys to scroll through the menu selecting each subtitle in turn
by pressing CONFIRM. See the table below for description of each setting.
4. Enter the desired number using the function keys and press CONFIRM.
During Legionella Prevention Mode the temperature of the stored water is in-
creased above 60°C to inhibit legionella bacterium growth. It is strongly recom-
mended that this is done at regular intervals. Please check local regulations for
the recommended frequency of heat ups.
Menu subtitle
Function
Range
Unit
Default value
Hot water temp.
Desired temp. of stored hot water
60–70
°C
65
Frequency
Time between LP mode DHW tank heat up
1–30
day
15
Start time
Time when LP mode will begin
0:00–23:00
-
03:00
Max. operation time
Maximum time allowed for LP mode DHW tank heat
1–5
hour
3
Duration of max. temp.
The time period after LP mode desired water temp. has been reached
1–120
min
30
Please note that LP mode uses the assistance of electric heaters to supple-
ment the energy input of the heat pump. Heating water for long periods of
time is not efficient and will increase running costs. The installer should give
careful consideration to the necessity of legionella prevention treatment whilst
not wasting energy by heating the stored water for excessive time periods.
The end user should understand the importance of this feature.
ALWAYS COMPLY WITH LOCAL AND NATIONAL GUIDANCE FOR YOUR
COUNTRY REGARDING LEGIONELLA PREVENTION.
Note: When failures occur on the FTC unit, the LP mode may not function normally.
2. When 2-zone temperature control is active and wireless remote controllers are
available, from Room RC zone select screen, select zone No. to assign to
each remote controller.
3. From Sensor setting screen, select a room sensor to be used for monitoring
the room temperature from Zone1 and Zone2 separately.
4. From Sensor setting screen, select Time/Zone to make it possible to use differ
-
ent room sensors according to the time schedule set in the Select Time/Zone
menu. The room sensors can be switched up to 4 times within 24 hours.
<Room sensor settings>
For room sensor settings it is important to choose the correct room sensor de-
pending on the heating mode the system will operate in.
1. From the Initial settings menu select Room sensor settings.
Initial Settings
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