AM, EM, AQ, BA, ASW - IOM
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5.10 Piping Connection
!!! use 2 spanners !!!
The piping must be connected to the heat pump outlets using
connection screwed fittings. We recommend using fittings with
cone contact area and an O-ring. Never connect the screwed
fitting with cap nut and front contact area directly to the fitting of
the heat pump outlet, always use proper screwed fitting which
is usually a part of the screwed fitting set. For tightening always
use the wrench on the heat pump outlet to prevent turning over
or twisting off the outlet.
connection fitting – nut
connection fitting – threaded extension
Outlets connection
5.11 Pressure and Leak Test
After connecting the heat pump and heating system the pressure and leak test must be
performed, typically by overpressure of 3.5bar. A written report about the test is made out.
5.12 Heat insulation
After the Pressure and Leak Test is performed, heat insulation is performed. Unlike for the
ground loop, common insulation materials based on PE (mirelon), or mineral wool (isover) can
be used for heating system.
5.13 General Instructions
After connecting the heating system the following instructions need to be followed:
•
Filter with 0,5mm sieve must be installed at inlet
•
Safety valve must be installed at the heat pump output, as per the project
•
Between the heating source (heat pump) and the safety valve must not be closing
armature (ball valve etc.)
•
Closing valves (ball) must be installed at the connecting piping to allow for disconnecting
the heat pump from the heating system if needed
•
Venting valves must be installed at the highest point of the piping
•
Discharge valves must be installed at the lowest point of the piping
•
If there is a combination of more heating sources or more heating circuits, clack valves
must be installed at all circuits.
