AERMEC NRB Series - Internal and External Hydraulic Circuit NRB P2-P4 (With Double Pump)

36
internal and external hydraulic circuit nrB P2-P4 (WITH DOUBLE PUMP)
Unit Components recommended
3
1
2
2
4
5
6
6
7
7
8
8
9
10
11
13
12
14
14
15
3
5
8
9 9
9
16
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 One way valve
7 Pump
8 Drain valve
9 Cut-o valve
10 Expansion Tank
11 Safety valve
12 Pressure gauges
13 Flow switch
HYDRAULIC COMPONENTS RECOMMENDED EXTERNAL TO UNIT
(RESPONSIBILITY OF THE INSTALLER)
3 Antifreeze electric heater
5 Air vent valve
8 Drain valve
9 Cut-o valve
14 Anti-vibration joints
15
System buer tank (installation recommended whenever the system water content is less than
that indicated in technical manual)
16 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