Installation Instructions - VTS VOLCANO VR Mini Manuel D'installation, D'utilisation Et D'entretien

4.3 INSTALLATION INSTRUCTIONS AND MOUNTING DISTANCES
Installation of the heating medium supply system While installing the piping for the heating medium, secure the exchanger connection against twisting 1. The piping should not overload the
heater connections. It is possible to connect the piping with flexible connections (adjustable angle of the airflow).
VOLCANO VR Mini, VR1, VR2, VR3
EXAMPLE OF A HYDRAULIC SYSTEM:
1. UNIT HEATER; 2. POWER-OPERATED VALVE; 3. VENT VALVE; 4. CUT-OFF VALVE; 5. FILTER; 6. CIRCULATION PUMP; 7. BOILER
Note! Maximum operating pressure of the medium for water coils is 16 bar, tested pressure: 21 bar
Residual water hardness
VOLCANO VR MINI, VR-D MINI
return
Marks
supply
7
6
Requirements of the quality medium for the water coils:
Parameter
Oil and grease
o
pH at 25 C
Oxygen
L [mm]
A 247
B 517
C 308
D 610
3
4
5
Value
< 1 mg/l
[Ca2+, Mg2+]/[HCO3-] > 0.5
< 0.1 mg/l (as low as possible)
31
VOLCANO VR1, VR2, VR3, VR-D
2
1
8 to 9
EN