Viessmann Vitomax HS Series Installation Instructions Manual page 16

Fitting measuring and control equipment...
Connector for water level controller and limiter
Fig. 6
a Reference electrode to lowest water level (LWL)
b Pump on
c Pump off
d Highest water level (HWL)
Type M73B – Electrode switching points for boilers with WSA-ME
Boiler size
6 to 13 bar
Switching point
16 to 25 bar
Switching point
Tab. 9
*4 WSA-ME = Water level indicator centre-to-centre distance
16
(cont.)
The water level controller and limiter may be com-
bined.
Installation instructions for the water level con-
troller and limiter electrodes
Note
Check the supplied electrodes for correct dimensions
according to the table. Adjust if necessary.
= 360 mm
*4
a mm
b mm
c mm
d mm
a mm
b mm
c mm
d mm
1 2
482 507
442 467
402 427
337 362
472 497
432 457
392 417
327 352