Nibe VPB series User's And Installer's Manual page 10

Explanation
Pipe connections
XL3 Connection, cold water
XL4 Connection, hot water
XL5 Connection, hot water circulation
XL8 Docking connection, supply line (from heat
pump*)
XL9 Docking connection, return line (to heat pump*)
XL13 Connection, supply line (from solar heating sys-
tem) (Only VPBS 300)
XL14 Connection, return line (to solar heating system)
(Only VPBS 300)
XL29 Connection, T&P valve
HVAC components
FL5 T&P valve Ø 15 mm
QM22 Venting, charge coil
UA1 Submerged tube for hot water sensor (display)
BT7
UA2 Submerged tube for hot water sensor (control)
BT6
UA3 Submerged tube for solar sensor (control)
UA4 Submerged tube for temperature limiter
UA5 Submerged tube for temperature limiter
Electrical components
FQ10 Temperature limiter
Miscellaneous
PF3 Serial number plate
UL Adjustable feet
Designations in component locations according to
standard IEC 81346-1 and 81346-2.
*or another external heat source
10 Chapter 3 | For the Installer VPB/VPBS