AERMEC NRB Series - Installation - Hydraulic Diagrams and Water Features; Internal and External Hydraulic Circuit NRB 00 (Standard)

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INSTALLATION  HYDRAULIC DIAGRAMS AND WATER FEATURES
internal and external hydraulic circuit NRB 00 (standard)
Unit Components recommended
4
13
1
2
2
5
6
7
8
9
10
10
11 11 11
11
12
14
3
5
9
15
COMPONENTS PROVIDED AS STANDARD
1 Plate heat exchanger
2 Water temperature sensors
3 Antifreeze electric heater (standard in the heat exchanger)
4
Water lter
5
Air vent valve
6
Safety valve
7
Flow switch
8
Pressure gauges
9
Drain valve
HYDRAULIC COMPONENTS RECOMMENDED EXTERNAL TO UNIT
(RESPONSIBILITY OF THE INSTALLER)
3 Antifreeze electric heater
5
Air vent valve
9
Drain valve
10
Anti-vibration joints
11
Cut-o valve
12
Pump
13
Expansion Tank
14
System buer tank (installation recommended whenever the system water content is less than
that indicated in technical manual)
15
Automatic Filling Valve
water features
System: Chiller with plate heat exchanger
PH 7,5-9
Electric conductivity 100-500S/cm
Total hardness 4,5-8,5°dH
Temperature < 65°C
Oxygen content < 0,1 ppm
Max. glycol amount 50%
Phosphates (PO4) < 2ppm
Manganese (Mn) < 0,05 ppm
Iron (Fe) < 0,3 ppm
Alkalinity (HCO3) 70 - 300 ppm
Chloride ions (Cl-) < 50 ppm
Sulphate ions (SO4) < 50 ppm
Sulphide ion (S) none
Ammonium ions (NH4) none
Silica (SiO2) < 30ppm