AERMEC NRB 0282 Series, Руководство по установке и обслуживанию

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38
i
nternal and external hydraulic circuit
nrB 02-04-06-08 (WITH DOUBLE PUMP + STORAGE TANK)
Unit Components recommended
1
3
2
2
4
5
6
6
7
7
8
8
8
9
10
3
5
11
12
13 14
9
9
15
15
16
(*)
(*) HYDRONIC KIT 06-08:
Storage tanks with holes for
supplementary heaters (not provided)
are sent from the factory with plastic
protection caps. Before loading the
system, if the installation of one or all
resistances is not expected, all plastic
caps must be replaced with the special
caps, commonly commercially available.
COMPONENTS PROVIDED AS STANDARD
1
Plate heat exchanger
2
Water temperature sensors
3 Antifreeze electric heater (standard in the heat exchanger and storage tank)
4 Water filter
5 Air vent valve
6
One way valve
7
Pump
8 Drain valve
9 Cut-off valve
10 System buffer tank
11
Expansion Tank
12
Safety valve
13 Pressure gauges
14 Flow switch
HYDRAULIC COMPONENTS RECOMMENDED EXTERNAL TO UNIT
(RESPONSIBILITY OF THE INSTALLER)
9
Cut-off valve
15
Anti-vibration joints
16
Automatic Filling Valve
water features
System: Chiller with plate heat exchanger
PH 7,5-9
Electric conductivity 100-500μS/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