REMKO LWM IM 300, Инструкция по эксплуатации и установке, Страница: 14 / 40

5 Hydraulic connection
A separate interpretation of nominal flow rate
must be made for every system (see technical
data).
n We recommend installing a buffer tank as a
hydraulic compensator for hydraulic isolation of
the heating circuit. Hydraulic isolation is
required when:
- different inlet temperatures need to be ach-
ieved, e.g. underfloor heating/radiators
- the pressure drop in the heating distribution
system is greater
- the use of other heat generators, e.g. com-
bustible burner for solid fuel, solar or bivalent
(dual-fuel) systems.
n Perform a pipe-network calculation before
installing the heat pump. After installing the
heat pump, it is necessary to perform a
hydraulic balancing of the heating circuit.
n
Protect underfloor heating systems against
excessively high inlet temperatures.
n
Do not reduce pipe diameters for the inlet and
return flow connections to the heat pump
before connecting a buffer tank.
n Plan for air bleed valves and drain-off taps at
appropriate places.
n Flush the system’s entire pipe network before
connecting the heat pump.
n One or, where necessary, several expansion
vessels must be designed for the entire
hydraulic system.
n The system pressure of the entire pipe network
is to be matched to the hydraulic system and
must be checked when the heat pump is
turned off. Also update the static-pressure form
supplied with the heat pump.
n The dirt trap must be checked during every
maintenance of the system.
n All exposed metallic surfaces must be addition-
ally insulated.
n Cooling mode via the heating circuit requires a
complete vapour density insulation along the
entire length of the pipework.
n All outgoing heating circuits are to be secured
against the ingress of circulating water by
means of check valves.
n Before being placed in service, the system
must be thoroughly flushed. Conduct a seal
test and perform a thorough bleeding of both
the indoor unit and the entire system - repeat-
edly, if necessary, in acc. with DIN standards.
REMKO LWM series
14