Samsung RC090MHXEA Installation And Maintenance Manual page 3

The 9kW unit has 1 inch BSP
male connections; these should
be connected to flexi hoses.
To maintain flow rate we
recommend 28mm pipework is
used with this machine. NEVER
use 22mm plastic tube, if you
insist on using plastic use 28mm
throughout
All Pipework including the flexis
need to be insulated with 23mm
lagging
It is essential to connect an
expansion vessel, pressure
gauge, pressure relief valve, filling
loop, magnetic filter/strainer and
automatic bypass.
A pump will be required, normally
in the flow. Dependant on system
resistance some times, 2 pumps
may be required.
Either a 3 port diverter valve or 2
x 2 port valves need to be
installed for domestic hot water
prioritisation.
A flow meter / setter and flow
switch should be installed and a
strainer in the return.
The domestic hot water cylinder
must be manufactured specifically
for the heat pump and have a coil
with a surface area of more than
3m^2 equivalent..
www.samsungehs.co.uk Hendra – June 2013 3