Pipe Connection - OEG 650 001 330 Installation And Operating Instruction

54
3.3

Pipe connection

GB
Backside connections of heat pump
Grommets for feed-through of
electrical connection cables
Flow R1"
Return R1"
Ports for refrigerant
All supply lines (electricity and water) are protected against moisture, mechanical
damages and UV rays by installation conduits or other appropriate measures.
Especially in the winter, an unobstructed outflow at the condensate opening must be
observed. In order to ensure operational safety at all times, the use of a heat strip with
frost monitor can be helpful.
Water supply connections
To facilitate the connection of the unit, it is recommended to use flexible, impermeable
corrugated stainless steel pipes. Contaminants must be flushed out of all pipes before
the heat pump is connected. A strainer / dirt filter needs to be installed in the return
pipe upstream from the heat pump. It is also recommended to use a dirt separator in the
return pipe to the heat pump additionally to the filter.
All water-carrying pipes have to be thermally insulated inside and outside sufficiently
pursuant to applicable regulations. If cooling operations are planned, vapour-
impermeable insulations should be installed to prevent condensate formation.
The heating water quality must comply with the following conditions:
Size of dirt particles
Water hardness
pH value
Conductivity (softening)
Conductivity (desalting)
Cl
-
SO
2−
4
Fe
2+
H S
2
Pipe fixings and wall feed-throughs must be performed with structure-borne sound
insulations. If needed (e.g. in case of power failure), the water can be drained from the
heat pump via the drain valve
Multi-functional DC inverter air/water heat pump
Draining outlet R½"
< 0.5 mm
≤ 8.4 °dH or ≤ 15 °fH
6.5 - 8.5
< 1,000 µS/cm
< 1,000 µS/cm
< 100 mg/l
< 100 mg/l
< 1 mg/l
< 0.5 mg/l