15
Figure 10. Installation for HCH Boiler (Heat Only Type Installation)
**External WRAS appoved fillin loop must be added during installation.
6.3 Boiler Features
Control panel is ergonomic and easy to use. The Proteus Premix condensing boiler with elegant plastic
control panel and advanced LCD screen provides ease of use and service. On a LCD display with black
instrument panel; you can see the operating state icons, heating circuit and operating water adjustment
values, the fault / failure codes and the heating water pressure. With the safety systems available in your
boiler, safety of both you and your boiler are fully ensured.
These safety systems are;
Flame Failure Safety System
Boiler Over-
Heat Safety System (95 °C)
DHW (Domestic Hot Water) Over-
Heat System (71°C)
High Water Pressure Protection System (3 bar)
Low Water Pressure Protection System (0.4 bar)
Low Voltage Protection System (170 VAC)
Thermal Accumulation Protection System (with by-
pass circuit and ‘’pump over-run’’)
Frost Protection System for both CH and DHW circuit
Domestic Hot Water Flow Control (only for HM Model)
Pump Anti-sticking Function
3 Way Valve Anti-sticking Function (except HCH Model)
Automatic Air Vent
Expansion Vessel (8 liters)
Water ingress protection from flue
Annual Maintanence Reminder
Anti-legionella Protection (only for HST Model)
3 bar
Safety
Valve
Expansion Vessel
CH Supply
CH Return
Wras Approved
Filling Loop**
BS Stop Valve
Fixed spindle type
Water main
