Handleiding
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Any damage due to the presence of foreign bodies or debris in the evaporator will not be covered by warranty.
Dirt, scales, corrosion debris and other material can accumulate inside the heat exchanger reducing heat exchange.
Pressure drop can increase as well, thus reducing water flow. Proper water treatment therefore reduces the risk of
corrosion, erosion, scaling, etc.. The most appropriate water treatment must be determined locally, according to the type
of system and water characteristics.
The manufacturer is not responsible for damage to or malfunctioning of equipment caused by failure to treat water or by
improperly treated water.
Table 13– Acceptable water quality limits
DAE Water quality requirements
BPHE
DX S&T
Ph (25 °C)
7.5– 9.0
6.8 ÷ 8.4
Electrical conductivity [μS/cm] (25°C)
< 500
< 800
Chloride ion [mg Cl
-
/ l]
< 300
< 150
Sulphate ion [mg SO4
2-
/ l]
< 100
< 100
Alkalinity [mg CaCO3 / l]
< 200
< 100
Total Hardness [mg CaCO3 / l]
75 ÷ 150
< 200
Iron [mg Fe / l]
< 0.2
< 1
Ammonium ion [mg NH
4+
/ l]
< 0.5
< 1
Silica [mg SiO2 / l]
-
< 50
Chlorine molecular (mg Cl2/l)
< 5
< 0.5
4.7 Evaporator and heat recovery exchangers anti-freeze protection
All evaporators are supplied with a thermostatically controlled anti-freeze electrical resistance, which provides the correct
anti-freeze protection at temperatures lower than –16°C.
However, unless the heat exchangers are completely empty and cleaned with anti-freeze solution, additional methods
must also be used against freezing.
Two or more of below protection methods shall be considered when designing the system as a whole:
− Continuous water flow circulation inside piping and exchangers
− Addition of an appropriate amount of glycol inside the water circuit
− Additional heat insulation and heating of exposed piping
− Emptying and cleaning of the heat exchanger during the winter season
It is responsibility of the installer and/or of local maintenance personnel to ensure that described
anti-freeze methods are used.
Make sure that appropriate anti-freeze protection is maintained at all times.
Failing to follow the instructions above could result in unit damage. Damage caused by freezing is
not covered by the warranty.
Bekijk gratis de handleiding van Daikin EWFD575TZPSD2, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | Daikin |
| Model | EWFD575TZPSD2 |
| Categorie | Airco |
| Taal | Nederlands |
| Grootte | 11779 MB |
