DHW heating
DHW heating takes priority.
The heat demand is issued via the top
cylinder temperature sensor.
DHW heating is terminated when the
actual temperature at the cylinder
temperature sensor exceeds the
value selected at the control unit.
The DHW cylinder can also be
equipped with a second cylinder tem-
perature sensor.
The installation of an immersion hea-
ter is possible. This would be con-
trolled by the first cylinder
temperature sensor.
Protect the immersion heater via a
separate connection.
The contactor is controlled by the heat
pump control unit.
Blocking (Power-OFF)
Implement the heat pump blocking by
the power supply utility (power-OFF)
via a zero volt contact. The heat pump
operation will be impaired if the power
supply is completely cut off.
For this, the power-OFF conversion
kit (accessory for three-phase shut-
down) can be used that keeps the
system and the pump operational via
an additional control phase.
Function description for the individual system . . .
(cont.)
13
Preparing for installation
55
92
901
GB
Содержание VITOCAL 300
Страница 19: ...Connection diagram Open CLOSE System version 1 cont 19 Preparing for installation 5592 901 GB...
Страница 22: ...Connection diagram Open CLOSE System version 2 cont 22 Preparing for installation 5592 901 GB...
Страница 66: ...Main menu Information A See page 67 Menu structure overview Information 66 Control unit settings 5592 901 GB...
Страница 137: ...Control PCB 137 Connection and wiring diagrams 5592 901 GB Service...
Страница 140: ...Parts lists cont 140 Parts lists 5592 901 GB...
Страница 141: ...Parts lists cont 141 Parts lists 5592 901 GB Service...
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