Viessmann Vitocell 100-B Installation Instructions For Contractors page 7

Product information
Installation dimensions
a
A
Fig. 2
a Wall clearance
Female connection for immersion heater
A
(cont.)
650
Fig. 3
Immersion heater installation instructions
Maintain the minimum clearance.
Note
The unheated length of any threaded immersion
heater installed on site must be at least 100 mm.
The threaded immersion heater must be suitable for
installation in enamelled DHW cylinders.
(150)
260
7