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7
Check list
7.1
Checking the piping installation
Before filling the heating system, check the piping installation according to the checklist below.
For further information, also see the Installation Quick Guide.
Warning
Make sure there is a flow switch installed! Otherwise the system will
not be able to function at all.
Piping checklist
OK
Not OK
Is there a flow switch installed?
Are the pipe connections in accordance with the connection diagram?
If flexible hoses are used, are they installed on the supply and return lines on the outdoor unit?
Is the strainer on return line mounted? See figure 1
Is an expansion vessel installed?
Is a valve-pipe with safety valve and manometer installed?
Is a volume tank installed? See
Volume tank table below
Is a filler cock with non-return valve heating system installed?
A
D
C
B
Fig. 19: Strainer
A: Stopcock
B: Cover
C: Strainer
D: O-ring
Warning
In order to secure the defrosting of the outdoor unit, a minimum
amount of water must be contained in the heating system. This is
shown in the table below.
If the heating system itself holds the amount of water described in the table, a volume tank is not needed, but recommended.
Volume tank table
Unit
5 kW
9 kW
16 kW
Min water volume in heating system. DHP-iQ Mini
l
120
180
320
Min water volume in heating system. DHP-iQ Maxi
l
60
90
160
N
If the amount of water in the heating system is not sufficient, alarms
may occur.
Installation Guide
DHP-iQ
Danfoss Heating Solutions
VIJSS102
53