Viessmann VITOSOLIC 200 Instructions d'exploitation télécharger pdf (Page 10)

10

■ Actual temperature dropping below

the stop temperature differential ΔToff

■ Exceeding the electronic temperature

limit of control unit

eZ

(max. 90 °C)

■ Reaching the temperature selected at

high limit safety cut-out

qW

(if installed)

Additional function for DHW heating

The requirements for the additional func-

tion are achieved through circulation

pump R5

qT

.

Suppression of DHW cylinder reheat-

ing by the boiler

Coding address "67" in boiler control unit

2

defaults a third set DHW temperature

(setting range 10 to 95 °C). This value

must be below the first set DHW temper-

ature. DHW cylinder

qP

will only be

heated by boiler

1

(solar circuit

pump R1

eE

runs) if this set value cannot

be achieved by the solar thermal sys-

tem.

DHW heating without solar energy

The upper section of DHW cylinder

qP

is

heated by boiler

1

. The cylinder ther-

mostat with cylinder temperature sen-

sor

3

of boiler control unit

2

regulates

circulation pump for cylinder heating

4

.

System examples

System example 1

(cont.)

5414 620 GB

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