Bedienungsanleitung Vaillant VRC 430f (Seite 34 von 40) (Englisch)

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Installation instructions VRC 430f 0020042470_0114

6.4 Function floor drying

The floor-drying function is used to "heat dry” a freshly-

laid heating layer according to building regulations.

If this function is activated, all selected operating modes

are stopped.

The flow temperature of the controlled heating circuit is

controlled according to a pre-set program regardless of

the outside temperature.

Starting temperature: 25 °C

Days after start-

ing the function

Target feed temperature for this day

[°C]

125

230

335

440

545

6-12 45

13 40

14 35

15 30

16 25

17-23 10

(frost protection function,

pump in operation)

24 30

25 35

26 40

27 45

28 35

29 25

Table 6.3 Temperature profile, floor drying

In screen C23 of the expert technician level, the

VRC 430f controller shows the floor-drying operating

mode with the current day and the associated target

flow temperature.

The current day can be set manually.

When the function is started, the current time of the

start is saved. The day is changed at this time precisely.

6.5 Handing over the appliance to the owner

The operator of the VRC 430f must receive instructions

on how to handle and operate of the controller.

Pass on the instruction manuals and documents for

the appliance to the operator for safe keeping.

Inform the operator what the part number is.

Make the operator aware of the need to keep the

instruction manuals within reach of the controller.

Go through the operating instructions with the oper-

ator and answer any questions if necessary.

6.6 Faults

Note!

If the outdoor sensor or controller stops work-

ing, the emergency-control setting is activated.

If the wireless outdoor sensor fails an outside

temperature of 0 °C is assumed.

Even if the controller fails, the system will con-

tinue to be controlled via the radio receiver

unit. (Exception: the switch-on room temp. is

no longer working.)

6.7 Special features

Battery power-save mode

Note!

The screen is usually switched off to save ener-

gy. This increases the service life of the batter-

ies.

The display and the lighting are activated as

soon as you turn or click one of the dials. If the

appliance is not used for more than one minute

the screen returns to the basic display returns

and switches off after approx. 10 minutes.

Status and fault messages to the radio receiver unit

green LED on: everything OK

red LED on: Error (no communication with ap-

pliance, controller or wireless out-

door sensor)

red LED flashes

briefly:

Radio transmission

green LED flashes: the "learn" process was started via

a button (only relevant for parts

replacement)

6.8 Maintenance

Point out to the operator that the radio outdoor

sensor (solar cell) should be cleaned at least once a

year to ensure that the power supply is maintained.

6 Initial commissioning

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