Sunrain YC-007 - Installation of Optional Accessories

5.2.4 The demanded quality of water
● The bad quality water will produce more scale and sand, so this kind of water should be filtered and
demineralized.
● The water quality should be analyzed before system running, to measure the PH value,
conductivity, Chloride ion concentration and sulphate ion concentration.
● The acceptable water quality standard is showed as below table.
PH value
Total hardness
Conductivity
Sulphate ion
Chlorine ion
Ammonia ion
7～8.5
< 50ppm
<200μV/cm(77℉)
None
< 50ppm
None
Sulfate ion
Silicon
Iron content
Sodium
Ca
< 50ppm
< 50ppm
< 0.3ppm
No requirement
< 50ppm
● Suggest the filter meshes is about 40 meshes.
● Must install the sand filter, hair collector etc. Swimming pool special impurity filter equipment.
6. Installation of optional accessories
6.1 Selection of the water pump
● The circulation pump is needed for the system, the power port is prepared for the pump, (one
phase)
NOTE
For the single phase pump, please check the circuitry diagram.
● The head of circulation pump = height difference between water level and main unit + total
pipelines resistance (determined by the hydraulic calculation) + pressure loss of main unit (see the
nameplate on heat pump ).
NOTE
when multi paralleled, the water pump head is subject to the worst working condition loop.