Innova Srl
Page 16
N420355A_Manuale-SLC 2022_EN_Rev 03.docx
4
HYDRAULIC CONNECTIONS
4.1
GENERALITY
The units are equipped with hydronic coils with air-water exchange;
- The connections on the units, even in the different applications and versions, are always common to all the units.
- Make sure to respect the flows indicated on the labels: inlet (water entering the unit), outlet (water leaving the unit)
- Make sure that the weight of the pipes does not weigh on the predisposed connections
- Provide shut-off valves on the delivery and return pipes to the system
- All chilled water pipes must be insulated to minimize unwanted heat exchanges and the formation of condensation.
- Before filling the pipes, make sure that they do not contain foreign materials: such as sand, stones, rust flakes, welding drops, slag, etc. Otherwise,
wash the hydraulic circuit by bypassing the unit.
- Absolutely avoid pump cavitation and the consequent presence of air in the hydraulic circuit.
Physico-chemical characteristics of water
Incompatible chemical-physical characteristics could compromise the integrity of the hydraulic parts of the unit.
Check the characteristics of the water:
DESCRIPTION
Limit value
Hardness
<10 ° F
PH value
7.5 / 9
Oxygen
<2 mg / l
Conductivity
<500 uS / cm
Iron
<2 mg / l
Manganese
<1 mg / l
Nitrate
<70 mg / l
Sulphate
<70 mg / l
Chlorine compounds
<300 mg / l
Free radical carbon dioxide
<10 mg / l
Ammonium
<20 mg / l
4.2
POSITIONING AND CONNECTION PROCEDURES
The hydraulic connections are located on the side of the
unit.
The connections are with Eurokonus ¾ ”male thread.
Respect IN as the water inlet to the unit and OUT as the
water outlet from the unit.