Viessmann VITOPEND 222 WHSA - Internal Extension H2

Internal extension H2
Part no. 7179 14 4
Electronic PCB for installation into the control unit, in place of t he
integral internal extension H1.
An external extractor interlock can be connected with the internal
extension H2.
Where that function is selected, no external safety solenoid valve
can be connected.
Specification
Rated breaking capacity of the
relay output 6(3) A 250 V~
Rated voltage 230 V ~
Rated frequency 50 Hz
External extension H1
Part no. 7179 05 8
Function extension inside a casing for wall mounting.
Using the extension enables the following functions to be achieved:
Function Rated breaking capacity of the relay output
Connection of a central fault message 0.4(0.2) A 250 V~
– Connection of a heating circuit pump (stepped) for a directly connected heating cir-
cuit
2(1) A 250 V~
– Minimum boiler water temperature demand
– External blocking
– Setboilerwatertemperaturedefaultedviaa0-10Vinput
– Only with the Vitotronic 200, type HO1:
External heati ng program changeover
Specification
Rated voltage 230 V ~
Rated frequency 50 Hz
Rated current 4 A
Power consumption 4 W
Protection class I
Protection IP 32
Permissible ambient temperature
– during operation 0 to +40 °C
Installation in living spaces
or boiler rooms
(standard ambient condi-
tions)
– during storage and transport -20 to +65 °C
External extension H2
Part no. 7179 26 5
Function extension inside a casing for wall mounting.
Using the extension enables the followi ng f unctions to be
achieved:
&
Minimum boi ler water temperature demand
&
External blocking
&
Only with the Vitotronic 200, type HO1:
External heati ng program changeover
Specification
Rated voltage 230 V ~
Rated frequency 50 Hz
Rated current 2 A
Power consumption 3 W
Protection class I
Protection IP 32
Permissible ambient temperature
– during operation 0 to +40 °C
Installation in living spaces
or boiler rooms
(standard ambient condi-
tions)
– during storage and transport -20 to +65 °C
5822 335-1 GB
VITOPEND 222 VIESMANN 27
AccessoriesfortheVitotronic200,typeHO1 (cont.)