Nibe VPB - Pipe Connections

Pipe connections
Connection, cold water, Ø 22 mmXL3
Connection, hot water, Ø 22 mmXL4
Connection, hot water circulation, Ø 15 mm
(Not VPBS 300)
XL5
Docking connection, flow line (from heat pump*),
Ø22mm
XL8
Docking connection, return line (to heat pump*,
Ø22mm
XL9
Connection, flow line (from solar heating system)
Ø 22 mm (Only VPBS 300)
XL13
Connection, return line (to solar heating system)
Ø 22 mm (Only VPBS 300)
XL14
Connection, T&P valveXL29
HVAC components
T&P valve Ø 15 mmFL5
Venting, charge coilQM22
Submerged tube for hot water sensor (display)UA1
Submerged tube for hot water sensor (control)UA2
Submerged tube for solar sensor (control) (only
VPBS 300)
UA3
Submerged tube for temperature limiterUA4
Submerged tube for temperature limiterUA5
Electrical components
Temperature limiterFD1
Miscellaneous
Serial number platePF 3
Adjustable feetUL
Designations in component locations according to
standard IEC 81346-1 and 81346-2.
*or another external heat source
9Chapter 3 | The water heater designVPB/VPBS UK