Okofen PELLEMATIC SmartXS, Installation Manual

Page: 43 / 100

The fresh water module 43
Hot water 1” internal thread
max. operating pressure DHW side 87 PSI
max. operating pressure heating water side
43.5 PSI
max. accumulator temperature 230°F
min. accumulator temperature 140°F at a set hot water temperature 122°F
Thermostat adjustable from 68°F – 140°F
Pump data
Charge pump
220V, 60Hz, Wilo Yonos Para RS 25/6
Power consumption 3 – 45 Watt
Current consumption 0,028 —0,44 A
Information regarding the corrosive effect of water on soldered plate heat exchangers
The soldered plate heat exchanger is made from stainless steel 316 or 304 and copper solder. In this case, the
resistance of both stainless steel and copper must be considered. Particular attention must be paid to compli-
ance with the values in the following table. In addition, mixed installations (especially with galvanized pipes)
must be avoided.
pH value 7 – 9 Free chlorine < 0,5 ppm
SO
4
⁻⁻⁻
< 100 ppm Fe +++ < 0,5 ppm
HC0
3
⁻
/ SO
4
⁻⁻
> 1 Mn +++ < 0,05 ppm
Cl
⁻
< 50 ppm CO
2
< 10 ppm
PO
4
⁻⁻
< 2 ppm H
2
S < 50 ppb
NH
3
< 0,5 ppm Conductivity
> 50
µ
S/cm, < 600
µ
S/cm
Wall temperature < 149° F Oxygen < 0,1 ppm
Total hardness 4,0 bis 8,5 °dH
All specified details are for information only and cannot be used as a basis for warranty claims. To prevent pit-
ting below coverings, all types of incrustation and contamination must be avoided in the heat exchanger. Fur-
thermore, the water flow rate and contamination with S0
2
and iron are relevant. The redox potential of the
solution (a function of the oxidising compounds, such as oxygen, hypochlorous acid and sodium carbonate)
must also be observed. In practice, the fresh water module shows up to a value of 15 ° d hardness high resis-
tance to calcification. At higher values, a decalcification plant can reduce the maintenance interval
significantly!
Installation Manual PELLEMATIC® SmartXS