25
1.
Make the safety connections.
Install all pipe connections free of load and torque
stress.
2.
Check the connections on the heating water side
for leaks.
Permiss. operating pres-
sure
6 bar (0.6 MPa)
Test pressure
7.8 bar (0.78 MPa)
Low water indicator (water level limiter)
Protect the boilers against water shortage in accord-
ance with EN 12828. A minimum pressure switch or
minimum pressure limiter can be installed for this,
available as accessories.
Safety valve
Equip boilers with a safety valve that is individually tes-
ted to EN 12828 and is marked according to the sys-
tem version.
Connecting the control unit
Connections to the electronics unit
Boiler control unit installation instructions
Note
Route 230 V cables and LV leads separately.
!
Please note
Hot components can damage electrical cables.
Never allow cables/leads to come into contact
with hot components. Secure all cables/leads
with cable ties.
Making the safety connections
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