98
Start-up - initial settings and functions
t_frisFH (standard: 72 - settable: 48/96)
Defines how long the floor preheating function runs for.
The HMI display shows the water supply temperature and the operating time of the function.
12.1 PREHEATING FOR FLOOR
Preheat for floor is
running for 25 minutes.
Water flow temperature is 20°C.
CONFIRM
Fig. 98
L
NOTE
You can forcibly exit the function by pressing .
12.2 FLOOR DRYING UP
The function can be useful for newly installed radiant floor distribution systems: during the first start-up in
Heating mode, condensate can form in the floor slab or under the floor, which may cause the floor to warp
or break.
To protect the floor, a drying cycle must be carried out at the first start-up, during which the temperature of
the water supplied to the floor is adjusted as shown in the diagram:
WATER
t
T_DRYPEAK
t_DRYUP t_HIGHPEAK t_DRYD
Fig. 99
L
NOTE
If this is the first time the unit has been started up, before activating this function run the air vent function
(indicated in this paragraph), in order to avoid malfunctions or damage to the system. If the heat pump is
out of service, the function continues using the boiler or backup electric heater, if present and enabled.
The parameters that can be set for this function are:
WARM UP TIME (t_DRYUP) (standard: 8 - settable: 4/15)
Defines the number of days over which the water supply temperature is gradually increased.
KEEP TIME (t_HIGHPEAK) (standard: 5 - settable: 3/7)
Defines the number of days over which the water supply temperature is kept constant.
TEMP. DOWN TIME (t_DRYDOWN) (standard: 5 - settable: 4/15)
Defines the number of days over which the water supply temperature is gradually decreased.
PEAK TEMP. (T_DRYPEAK) (standard: 45 - settable: 30/55)
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