Operating instructions

Display screen Explanation

2 Burner mod ulation f ull load

3 Internal pump / output 20 "ON"

4 Heating mode diverter valve

5 Valve, centre position

6 DHW valve

10 Output sK Internal extension

11 Heating circuit pump A1 external extension

12 Cylinder primary pump external extension

13 DHW circulation pump external extension

14 Central fault me ssage external extens ion

Weather–compensated control unit

Press the follo wing keys:

1. K + d simultaneo usly for

approx. 2 s

2. a/b Control relay outp uts.

3. d Relay test ended.

Subject to the actual equipment level, the following relay outputs can be

controlled:

Display screen Explanation

Base load Burner modulation lower output

Full load Burner modulation upper output

Int. pump ON Int. pump/output 20 "ON"

Heating valve Diverter valve set to heating mode

Valve central pos. Diverter valve in centre position (filling)

DHW valve Diverter valve set to DHW mode

Heat. circ. pump M2 ON Mixer extension

Close mixer M ixer extension

Open mixer Mixer exten sion

Output int. Internal extension

Heat. circ. pump A1 ON Extern al extension

Cylinder primary pump ON External extension

DHW circ. pump ON External extension

Central fault message ON External extension

Checking outputs (relay test) (cont.)

Service scans

5692 619 GB