Hydraulic Diagram; Electrical Connections; Outdoor Temperature Sensor - Atag II Installationsanleitung

GB
installation
Hydraulic diagram Direct heating circuit module II
1
2
3
4
6
9
Hydraulic diagram Direct heating circuit module III
1
2
3
4
5
6
9 11
Legend
1. Manual air vent
2. Hydraulic separator
3. Zone 1 Circulation pump
4. Zone 2 Circulation pump
5. Zone 3 Circulation pump
6. Zone 1 flow valve
7. Zone 2 flow valve
8. Zone 3 flow valve
9. Zone 1 non-return valve
10. Zone 1 return valve
11. Zone 2 non-return valve
12. Zone 2 return valve
13. Zone non-return valve
14. Zone 3 return valve
15. Boiler return valve
16. Boiler flow valve
8
16
15
10
11 7 12
16
12
7 13 8 10 14
WARNING
Before carrying out any work on the boiler, first isolate it
from mains power

Electrical connections

For increased safety, the entire electrical system should be checked by
a qualified electrical engineer.
The manufacturer may not be held responsible for any damage caused
by the lack of a suitable earthing system or by the malfunctioning of
the electricity mains supply. Ensure that the electrical system can
provide the maximum power required by the module (as shown on
the data plate). Make sure that the cross section of the wires is suitable
and is no less than 1.5 mm
For safety of operation, the equipment must be connected to an
earthing system.
The power supply cable must be connected to a 230V 50Hz network,
ensuring the correct connection of L-N and earth.
15
For a low temperature floor installation, use a safety thermostat for
underfloor heating for Zones 2 and 3.
The electrical connection must be made on terminal blocks ST2 and
ST3 of the module.

Outdoor temperature sensor

An outdoor temperature sensor can be connected to the module's "SE"
terminal block. This can be used to display the outdoor temperature,
or for temperature control if:
- the module is connected to the boiler via the ATAG zone connection
(scenario no. 1).
In this scenario, the outdoor temperature sensor connected to the
module overrides the sensor that may be connected to the boiler.
.
2
H05 V2V2-F