A
Heating water return, R1"
B
Heating water flow, R1"
C
Secondary pump
D
Instantaneous heating water hea-
ter
Thoroughly flush the heating system
(particularly when connecting to an
existing system) and connect the flow
and return lines.
Power supply
Danger
Incorrectly executed electrical
installations can lead to injury
through the transmission of
dangerous body currents and
result in equipment damage.
Carry out the power supply
connection and all earthing
measures (i.e RCD circuit) in
accordance with IEC 364, the
requirements of your local
power supply utility, VDE or
national regulations.
Main isolator requirements (if necessary)
The main isolator must simulta-
neously isolate
all
non-earthed con-
ductors with a minimum contact
separation of 3 mm.
Connections on the heating circuit side
39
Installation sequence
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...
Страница 159: ...159 5592 901 GB...