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Aquarea air/water heat pump – Installation manual for monobloc and split systems C, D and E series 05 / 2014
7
Hydraulic &
refr
ig. circuits
Installation of heating and refrigeration circuits for split systems
7 Installing the heating and refrigeration circuits for split
systems
Danger!
The work may only be performed by qualified or certified personnel .
Warning!
Aquarea heat pumps may only be installed as sealed systems without
direct contact of the heating water to the ambient air . Addition of oxygen
in open vented systems can lead to excessive corrosion of the pipelines
and resulting problems in operation .
When cutting and beading the pipes, observe the following specifications
to prevent leaks and device malfunctions:
• Only copper pipes which comply with the requirements of EN 12
735-1 for refrigerant pipes used in cooling and air conditioning sys-
tems may be used .
• Use a pipe cutter to cut the pipes to length .
• Use a deburrer to remove burrs .
• When deburring the pipes, hold the pipe end facing down to prevent
burrs falling into the pipe .
• Bead the pipe ends after pushing the flare nuts into place .
• Correct beading has an even thickness and is shiny . Ensure that the
surface which is in contact with the connecting piece is completely
smooth .
1
Latch
2
Handle
3
Yoke
4
Core
5
Arrow mark
6
Clamp handle
7
Latch
8
Copper pipe
9
Crooked
10
Surface damaged
11
Cracked
12
Uneven thickness
Pipe expander
Incorrect beading
2
3
4
1
7
9
10
11
12
8
6
5
0
–
0,5
mm
