Samsung 050JXYDEH Installation And Maintenance Manual page 3

What comes with the unit and what you will need:
Below is a list of the components which comes with fast connect,
Flexible hoses the water connections to the back of the
unit are 1 inch BSP male. We recommend connecting the
water pipework with flexible hoses for ease of maintenance
and to avoid any vibration from the unit going into the
house. All external pipework has to be insulated to meet
MCS standards.
Mounting feet, the outdoor units need to be mounted
100mm above the ground, we recommend using rubber feet with
unistrut channel. These come with mounting bolts included.
An expansion vessel, pressure gauge, pressure relief valve
and filling loop
In pressurised heating systems most heating engineers use a Robokit
which combines all these components into one box. The expansion
vessel is sized exactly the same way as when using a boiler. If you
want to run the system open vented you don't need these components,
the Samsung units are happy to run at anywhere from 0 – 3Bar
pressure
Diverter valves
If you require multiple heating zones you need to supply a 2 port diverter
valves per zone.
Glycol / anti-freeze
In Monobloc heat pumps the water goes outside the building. The unit can protect
itself from freezing up, but if the power goes off there is a risk that the unit will freeze
causing damage. To prevent this, we recommend putting propylene glycol mixture in
the system. It is important that the glycol concentration is
adequate to protect the unit, if the unit freezes up there
will be no warranty. Manufacturer dependant, a mix of
25% is normal for UK conditions.
Adding too much glycol is not a good idea as it increases the water pump power and
slightly reduces the capacity of your system.
The Cylinder:
If you want to heat water with a heat pump you need a dedicated heat pump cylinder.
The cylinder needs to be installed less than 15m from the control box to allow for the
temperature sensor cable.
Cylinders can only be used IF the coil area is more than 2.5m^2. Smaller coils are
not acceptable and cannot be used. Please do not attempt to utilize a standard
central heating, non-heat pump optimized cylinder. Cylinders can be pressurised or
open vented.
2016 b fast connect 3