Internal H1 Extension - Viessmann VITODENS 242-F Technical Manual

Control units
(cont.)
0
7 2
1 3

Internal H1 extension

Part no. 7498513
The internal H1 extension is part of the standard delivery and is inte-
grated (not for Vitodens 222-F and 242-F).
Using the extension enables the following functions to be achieved:
Function
– Connection of an external safety solenoid valve (LPG)
And one of the following functions:
– Connection of a heating circuit pump for a directly connected heating circuit
– Connection of a central fault message
– Only with Vitotronic 200, type HO1B and HO2C:
Connection of a DHW circulation pump
Specification
Rated voltage 230 V~
Rated frequency 50 Hz
Internal H2 extension
Part no. 7498514
PCB for installation in the control unit, in place of the integral internal
H1 extension.
Using the extension enables the following functions to be achieved:
Function
– External extractor interlock
And one of the following functions:
– Connection of a heating circuit pump for a directly connected heating circuit
– Connection of a central fault message
– Only with Vitotronic 200, type HO1B and HO2C:
Connection of a DHW circulation pump
Power supply for DHW circulation pump
DHW circulation pumps with their own internal control unit must be
connected to a separate power supply. Mains connection via the
Vitotronic control unit or Vitotronic accessories is not permissible.
AM1 extension
Part no. 7452092
Function extension inside enclosure for wall mounting.
Using the extension enables up to two of the following func-
tions to be achieved:
■ Switching the DHW circulation pump (only with Vitotronic 200,
type HO1B and HO2C)
■ Switching of heating circuit pump for a directly connected heating
circuit
■ Switching the circulation pump for cylinder heating (not for boilers
with integral DHW cylinder)
VITODENS
Specification
Lead length 4.2 m, fully wired
Setting range 30 to 80 °C
Switching differential Max. 14 K
Breaking capacity 6(1.5) A, 250 V~
Setting scale Inside the casing
DIN reg. no. DIN TR 1168
Rated breaking capacity of the relay output
Rated breaking capacity of the relay output
Specification
Rated voltage 230 V~
Rated frequency 50 Hz
Power supply for DHW circulation pump
DHW circulation pumps with their own internal control unit must be
connected to a separate power supply. Mains connection via the
Vitotronic control unit or Vitotronic accessories is not permissible.
1(0.5) A 250 V~
2(1) A 250 V~
6(3) A 250 V~
6
2(1) A 250 V~
VIESMANN
91