Viessmann Vitocal 350-A Installation And Service Instructions Manual page 95

Electrical connections in the heat pump control...
Appliance
Vitosolic 200
Motorised two-way valve and
cylinder primary pump (DHW
heating with primary store sys-
tem; both components to
2X8.12)
Instantaneous heating water heater (accessory)
Connection
Installation instructions
Instantaneous heating water
heater for the Vitocal 350-A, type
AWH-I, AWH-O (accessory).
Required parameters:
Parameter Ó setting
"Electric heater"
■ "Inst. heating water heater" Ó "Yes"
Power-OFF
The supply voltage to the relevant components (subject to power supply utility) is
switched off by the power-OFF contact signal.
1X3.7
A
B
1X3.6
A Terminals on PCB 1
B Zero volt N/C contact
Breaking capacity 230 V~, 0.5A,
remove jumper when making this
connection
Connection Required parameters:
Parameter Ó setting
3X1.25Ó aVG "System definition"
■ "Vitosolic type" Ó "2"
3X2.25Ó aVG
2X8.12 "System definition"
1X2.N ■ "System diagram" Ó with
1X1.? DHW heating
(see page 50)
Installation instructions
Control module for instantaneous
heating water heater (acces-
sory).
Contact open:
Contact closed:
Note
■ No parameters need to be set.
■ The compressor is switched off as
soon as the contact opens.
■ For the instantaneous heating water
heater, the stages to be switched off
can be selected. See parameter
"Stage at power-OFF" (790A) on
page 190.
Installation sequence
(cont.)
Power-OFF ena-
bled
Power-OFF disa-
bled
95