Product Description; Introduction; Overall View; Control Unit - Atag II Installationsanleitung

GB

product description

Introduction

The Direct heating circuit modules II and III are mono-temperature hydraulic modules equipped with energy efficient modulating pumps. They
can be used to increase the size of installations. All circuits must be equipped with the same radiator system. Up to three circuits can be created.
Mono-temperature modules are designed to be installed hydraulically independent of the boiler.
The Direct heating circuit modules II and III can operate in one of two regulation modes:
Scenario no. 1: the boiler is equipped with an ATAG zone connection. The boiler and the module communicate for optimal efficiency. The
module and heating can be configured directly on the boiler control panel.
Scenario no. 2: the boiler does not have an ATAG zone connection option. When a heating request is sent to the module, the signal is
transferred to the boiler by a volt free contact. An system interface (option) must then be used to configure the module and heating.
Overall view Direct heating circuit module II
1
2
3
4
8
9
5
6
Zone 1 Zone 1
1. Manual air vent
2. Boiler flow isolation valve
3. Balancing header
4. Zone 1 Circulation pump
5. Zone 2 Circulation pump
6. Zone 1 - 2 isolation valves

7. Control unit

8. Zone 2 non-return valve
9. Zone 1 non-return valve
10. Boiler return valve
4
Zone 2 Zone 2 Zone 2 Zone 2 Zone 1 Zone 1
Overall view Direct heating circuit module III
1
2
10
3
4
5
9
6
7
10
7
Zone 1
Zone 1 Zone 2 Zone 3 Zone 1 Zone 2 Zone 3
1. Manual air vent
2. Boiler flow isolation valve
3. Balancing header
4. Zone 1 Circulation pump
5. Zone 3 Circulation pump
6. Zone 2 Circulation pump
7. Zone 1 - 2 - 3 isolation valves
8. Control unit
9. Zone 1 non-return valve
10. Zone 2 non-return valve
11. Zone 3 non-return valve
12. Boiler return valve
Zone 2 Zone 3 Zone 1 Zone 2 Zone 3
12
11
8