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24
Victorum EAHP Unit
Piping
Primary Pipework
The flow and return connections on the underside of the unit
are 15mm compression. Nuts and olives are supplied with
the heat pump.
It is advised to increase the size of the primary pipes to
22mm copper or 25mm Alupex to reduce the resistance.
Isolation valves must be installed directly below the unit to
allow for maintenance and/or repair of the Heat Pump.
Pressure relief valve
The Heat Pump does not have a pressure relief valve incorporated. The
installer MUST ensure the system is protected from over-pressurisation.
The valve prevents abnomal water pressure from damaging the system
by opening at a maximum pressure setting of 3.0 bar.
A pressure relief valve may be incorporated in the pre-plumbed unit.
Consult the relevant pre-plumb section for more information
Filter-Ball/ Y-Strainer
Installation of the filter/ strainer is essential to protect the Heat Pump
from system debris.
The filter/ strainer must be cleaned after one day of operation and it
must be checked periodically to maintain the minimum system flow rate.
Fill & Flush Valve
The fill & flush valve must be installed on the primary return after all
system connections have been made. This ensures that when purging
air from the system, the entire system is being purged correctly.
Piping insulation
Pipe insulation should comply with BS 5422:2009. Alternatively,
insulation of a thickness that provides reduction of heat loss equivilant
to material having a thermal conductivity of 0.035 W/mK at 40 °C and
thickness equal to the diameter of the pipe (or 40mm, whichever is
smaller) may be used.
Flow
Return
Drain
The piping system must be flushed out before the Heat Pump is connected so
that any debris will not cause damage to the component parts
