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© Danfoss | Climate Solutions | 2023.06
AQ450435606290en-US0201| 11
Material soldering / welding connection: S235JR
The
pipe connections
have graduated inside diameters so that pipes with
standard dimensions can be used.
The connection diameters of the shut-off valves are rated for maximum
compressor output.
The actual required pipe cross section must be
matched to the output. The same applies for non-return valves.
Fig. 5: graduated
internal diameter
4.3 Pipe connections
Damage possible.
Superheating can damage the valve.
Remove the pipe supports therefore from the valve for soldering
and accordingly cool the valve body during and after soldering.
Only solder using inert gas to inhibit oxidation products (scale).
4
|
Compressor assembly
B1
A1
4.5 Flange shut-off valves (HP/LP)
4.4 Pipes
Pipes and system components must be clean and dry inside and free of scale, swarf and layers of
rust and phosphate. Only use hermetically sealed parts.
Lay pipes correctly. Suitable vibration compensators must be provided to prevent pipes being
cracked and broken by severe vibrations.
Ensure a proper oil return.
Keep pressure losses to an absolute minimum.
Fig. 6
Fig. 7
Risk of injury.
The compressor must be depressurized through connections A1
and B1 before commencing any work and prior to connecting to
the refrigerant system.
