UK Manufactured Unvented Hot Water Cylinder Installation Guide
29
Maximum mains water supply pressure
1.0MPa (10 bar max)
Operating pressure secondary circuit (PRV Setting)
0.3MPa (3 bar)
Expansion vessel design pressure
0.28MPa (2.8 bar - 0.2 bar below working)
Expansion relief valve setting
0.6MPa (6 bar)
Maximum design pressure of the secondary circuit
0.55MPa (5.5bar)
Maximum Expansion vessel pressure
1.0MPa (10 bar)
T&P relief valve setting
0.7MPa/90 °C (7 bar)
Primary coil maximum design pressure
0.6MPa (6 bar)
Operating pressure of the primary circuit
0.3MPa (3 bar)
Primary flow rate information
15l/min @ 80°C
Immersion heater rating (a.c. supply only) single phase
2kW or 3kW 50/60Hz ~
Storage weights (empty and full)
See Specification Tables
Indirect coil ratings
See Specification Tables
Pressure drop across the indirect coils
See Specification Tables
Coil surface area
See Specification Tables
Technical Data
Indirect models in conformance with BS EN 12897:2016
Direct models in conformance with BS EN 50440:2015
