Technical data

6 Installation and maintenance manual atmoCRAFT
2.7 Functional and operating elements
13
12
15
14
3
4
1
6
5
2
10
98 7
11
Fig. 2.1 Overview of the functional elements
Key:
1 Electronic box
2 Gas fitting
3 Burner
4 Boiler filling and drain cock
5 Immersion sleeve
6 Safety temperature limiter STL
Operating elements of the control box:
7 Main ON/OFF switch
8 Digital information and analysis system with display
9 Feed temperature controller
10 Storage tank temperature controller
11 Mounting positions for Vaillant control units
Connections on the back of the boiler:
12 Heating feed connection (HVL)
13 Gas connection
14 Heating return connection (HRL)
15 Flow cutout
2 Description of the appliance