For The User - Nibe VPB Series User's And Installer's Manual

2 For the User

Maintenance
SAFETY VALVE (NOT SUPPLIED)
The water heater's safety valve sometimes releases a
little water after hot water usage. This is because the
cold water, which enters the water heater, expands
when heated causing the pressure to rise and the safety
valve to open.
The function of the safety valves must be regularly
checked, about four times a year, to prevent clogging.
To inspect the valve, open the safety valve manually
and check that water flows through the overflow pipe.
If this does not happen then the safety valve is defective
and must be replaced.
EMPTYING
Water heater
Draining is performed through the siphon (using hose)
in the cold water connection (XL3).
Charge coil
Draining is performed through the siphon (using hose)
in the docking connection, return to heat pump (XL9).
Solar coil
Draining is performed through the siphon (using hose)
in the connection, return to solar heating system (XL14).
XL3
VPB 200/VPB 300
6 Chapter 2 | For the User
XL9
XL3
VPBS 300
SERVICE
For service, contact the installer. Serial number (PF3)
(14 digits) and installation date should always be stated.
Only replacement parts supplied by NIBE may be used.
XL9 XL14
VPB/VPBS