AERMEC HMG - Characteristics of Water

32
ATTENTION
It is forbidden to operate the unit without the water
filter installed and cleaned. The installation of the water
filter is mandatory under penalty of forfeiture of the
guarantee.
ATTENTION
Do not use saline solutions to avoid damage to the unit
due to corrosion.
CHARACTERISTICS OF WATER
We recommend that you do a water analysis before loading
the system. The hydraulic circuit must be equipped with all the
devices necessary for water treatment.
The use of untreated or improperly treated water can cause
deposits of encrustations, algae, mud or erosion and corrosion
phenomena, causing serious damage to the heat exchanger.
It is advisable to seek the assistance of a specialist water treatment
technician in order to determine the quality of your water and
any corrective actions.
Aermec declines all responsibility for any damage deriving from
the use of "heavy" water that is not treated or improperly treated.
By way of non-exhaustive indication, we report the table of the
water quality recommended for plate heat exchangers:
CHARACTERISTICS OF WATER
SYSTEM: HEAT PUMP WITH TUBE BUNDLE EXCHANGER
Elements Loading water Make-up water
pH (25 °C) 6,8 ~ 8,0 6,8 ~ 8,0
Electrical conductivity (25 °C) < 400 S/cm < 300 S/cm
Chlorine ions (Cl-) < 50 mg/L < 50 mg/L
Sulphate ions (SO
4
) < 50 mg/L < 50 mg/L
Alkalinity (CaCO
3
) < 50 mg/L < 50 mg/L
Total hardness (CaCO
3
limestone) < 70 mg/L < 70 mg/L
Iron (Fe) < 0,1 mg/L < 0,3 mg/L
Sulfide ion (S
2-
) no no
Ammoio (count NH
4
+
) < 0,1 mg/L < 0,3 mg/L
Silica (SiO
2
) < 30 mg/L < 30 mg/L