Extension Am1; Extension Ea1 - Viessmann VITODENS 300-W Technical Manual

Control units
(cont.)
Using the extension enables the following functions to be achieved:
Function
– External extractor interlock
And one of the following functions (only for Vitodens 200-W and 300-W):
– Connection of a heating circuit pump (multi stage) for a directly connected heating circuit
– Connection of a central fault message
– Connection of a circulation pump for cylinder heating
– Only with Vitotronic 200, type HO1B:
Connection of a DHW circulation pump
Specification
Rated voltage 230 V~
Rated frequency 50 Hz

Extension AM1

Part no. 7452 092
Function extension inside casing for wall mounting.
Using the extension enables up to two of the following functions
to be achieved:
■ Switching the DHW circulation pump (only with the Vitotronic 200,
type HO1B)
■ Switching the heating circuit pump for a directly connected heating
circuit
■ Switching the circulation pump for cylinder heating (not for boilers
with integral DHW cylinder)
0
1 8
5 8

Extension EA1

Part no. 7452 091
Function extension inside casing for wall mounting.
Using the inputs and outputs allows up to 5 functions to be ach-
ieved:
1 switching output (floating changeover contact)
■ Central fault message output
■ Switching a feed pump to a substation
■ Switching the DHW circulation pump (only with the Vitotronic 200,
type HO1B)
1 analogue input (0 to 10 V)
■ Specifying set boiler water temperature
3 digital inputs
■ External operating mode changeover for 1 to 3 heating circuits (only
with the Vitotronic 200, type HO1B and HO1C)
■ External blocking
■ External blocking with central fault message
■ Minimum boiler water temperature demand
VITODENS
Rated breaking capacity of the relay output
Specification
Rated voltage
Rated frequency
Rated current
Power consumption
Rated relay output breaking capacity 2(1) A 250 V~each
Safety category
IP rating
Permissible ambient temperature
– During operation
– During storage and transport
■ Fault messages
■ Short term operation of DHW circulation pump (only with the
Vitotronic 200, type HO1B and HO1C)
0
1 8
5 8
Specification
Rated voltage
Rated frequency
6(3) A 250 V~
2(1) A 250 V~
230 V~
50 Hz
4 A
4 W
In total max. 4 A~
I
IP 20 D to EN 60529
Ensure through design/instal-
lation
0 to +40 °C
Installation in living spaces or
boiler rooms
(standard ambient conditions)
–20 to +65 °C
230 V~
50 Hz
VIESMANN
97
7