39
i
nternal
and
external
hydraulic
circuit
nrB 09
(DOUBLE LOOP)
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
1
3
2
2
7
7
8
8
8
8
11
3
10
14
14
15
4
5
6
6
7
9
12
13
Unit
Components recommended
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
Flow switch
5
Water filter
6
Pump
7
Drain valve
8
Cut-off valve
9
Expansion Tank
10
Air vent valve
11
System buffer tank
12
Safety valve
13
Pressure gauges
HYDRAULIC COMPONENTS RECOMMENDED EXTERNAL TO UNIT
(RESPONSIBILITY OF THE INSTALLER)
6
Pump
7
Drain valve
8
Cut-off valve
14
Anti-vibration joints
15
Automatic Filling Valve
Summary of Contents for NRB 0282 Series
Page 2: ......
Page 12: ...12 DIMENSIONS mm 0282 e _0302 l 0282 L...
Page 13: ...13 0282 n _0302 e _0332 l 0302 n _0332 e n _0352 l e...
Page 15: ...15 0604 l a e _0654 l 0604 u n _0654 a e u n _0704 l a e _0754 l a e...
Page 16: ...16 0702 u n _0752 u n 0704 u n _0754 u n...
Page 20: ...20 bottom view bottom view LAYOUT 4 LAYOUT 5 YG XG YG XG...
Page 55: ......
