7. Preparations for commissioning
28
7.4
Water supply
7.4.1
First-time water filling
NOTICE
For first-time filling, only water with the following
threshold limits should be used:
Conductivity
5 - 150 µS / cm
pH value
6 - 8
Overall hardness (CaCO3)
< 3° dH
Iron (Fe)
< 0.3 mg / L
Chloride (Cl-)
< 50 mg / L
Sulphate (SO4-2)
< 50 mg / L
Nitrate (NO3-)
< 0.3 mg / L
Ammonium (NH4+)
< 0.3 mg / L
The Gardner Denver water analysis set can be used to
determine the water quality.
If deviant values are present, we recommend use of the
demineralisation unit from Gardner Denver for first-time
filling.
For a more detailed description, see Section 7.5
Fig. 12
1 Manual valve – water in
2 Water level sensor
3 Water supply
4 Fill level marking "Below"
5 Fill level marking "Above"
6 Water level indicator
7 Pressure tank
Perform first-time water filling as follows:
•
Open manual valve – water in (-1- Fig. 12).
Water flows through the inlet (-3- Fig. 12) into the
pressure tank (-7- Fig. 12).
•
Fill up to the fill level marking "Above" (-5- Fig. 12).
•
Close manual valve – water in (-1- Fig. 12). Start
system and monitor the water level.
•
Once the fill level marking "Below" (-4- Fig. 12) has
been reached, turn off system via the emergency off.
•
Open manual valve – water in (-1- Fig. 12).
•
Fill with water up to the fill level marking "Above"
(-5- Fig. 12).
•
Close manual valve – water in. Start system and
monitor the water level.
•
Once the fill level marking "Below" (-4- Fig. 12) has
been reached, turn off system via the emergency off.
•
Repeat this filling process until the water level has
balanced out between the fill level markings.
7.4.2
Water supply during operation
NOTICE
The water-supply quality must not exceed the
following limits for continuous operation:
Conductivity
< 2000 µS/cm
pH-Value
6,5 - 8
Overall hardness (CaCO3)
< 20 °dH
Iron (Fe)
< 0,3 mg / L
Chloride (Cl-)
< 250 mg / L
Sulphate (SO4-2)
< 240 mg / L
Nitrate (NO3-)
< 50 mg / L
Ammonium (NH4+)
< 0,5 mg / L
NOTICE
For long-term operation, the water quality of the
internal circulation water (water injection) must
not exceed the following limit values:
Conductivity
50 - 150 µS / cm
pH value
6 - 8
Overall hardness (CaCO3)
< 3° dH
Iron (Fe)
< 0.3 mg / L
Chloride (Cl-)
< 50 mg / L
Sulphate (SO4-2)
< 50 mg / L
Nitrate (NO3-)
< 0.3 mg / L
Ammonium (NH4+)
< 0.3 mg / L
Summary of Contents for EnviroAire 15
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