Power Supply - Viessmann Vitogate 300 Installation And Service Instructions For Contractors

Power supply

(cont.)
1. Check whether the power cable to the Vitotronic
control unit has appropriate fuse protection.
2. Terminate the power cable on site in terminal box
and at plug .
E fÖ
3. Insert plug
fÖ into the Vitotronic control unit.
Power supply independent of the mains isolator
When the heating system is switched off via the mains
isolator, the Vitogate 300 remains on, whilst the
Vitotronic control unit is switched off.
A
G
100-240 V AC
C
BN
L1
GNYE
PE
B
BU
N
Fig. 7
Vitogate 300
A
Power supply 100 to 230 V~, 45 to 65 Hz
B
Fuse (max. 16 A)
C
Junction box (on-site)
D
1. Check whether the power cable to the Vitotronic
control unit has appropriate fuse protection.
2. Terminate the power cable on site in terminal box
D and at plug fÖ .
Danger
Incorrect core allocation can result in serious
injury and damage to the appliance.
Take care not to interchange wires "L1" and
"N":
L1 Brown
N Blue
PE Green/yellow
3. Insert plug into the Vitotronic control unit.
fÖ
+24 V GND
24 V DC
+ -
L N
E
D
Colour coding in accordance with DIN IEC 60757
BN/MB Brown
BU Blue
GNYE Green/yellow
No data is transferred to the BACnet or Modbus con-
trol system.
F
L
N
Mains isolator, 2-pole, on site (if installed)
E
Vitotronic control unit power supply (plug
F
Power supply unit
G
Installation sequence
)
fÖ
9