Hydraulic Diagram; Electrical Connections; Outdoor Temperature Sensor - Atag Mixed heating circuit module II Manuel D'installation

GB
installation
Hydraulic diagram Mixed heating circuit module II
1
2
A
B
3
Legend
1. Automatic air vent
2. Balancing header
3. Dirt separator outlet
4. Zone 1 non-return valve
5. Zone 2 Circulation pump
6. Zone 1 Circulation pump
7. Zone 2 mixing valve
A. Boiler flow
B. Boiler return
C. Zone 1 flow
D. Zone 1 return
E. Temperature-controlled Zone 2 flow
F. Temperature-controlled Zone 2 return
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.
8
A B
7
AB
6
5
4
C D E F
.
2
H05 V2V2-F
Hydraulic diagram Mixed heating circuit module III
1
2
A
B
3
C
Legend
1. Automatic air vent
2. Balancing header
3. Dirt separator outlet
4. Zone 1 non-return valve
5. Zone 3 Circulation pump
6. Zone 2 Circulation pump
7. Zone 1 Circulation pump
8. Zone 2 mixing valve
9. Zone 3 mixing valve
A. Boiler flow
B. Boiler return
C. Zone 1 flow
D. Zone 1 return
E. Temperature-controlled Zone 2 flow
F. Temperature-controlled Zone 2 return
G. Temperature-controlled Zone 3 flow
H. Temperature-controlled Zone 3 return
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.
A B
9
A B
AB
8
AB
7
6
5
4
D E F G H