Boilermaster HF

Range of BoilerMaster HF (High-Flow) HIUs.

• Single plate up to 270kW Central Heating
• 3°C approach and 25C drop on secondaries 83°C : 55->80°C
• EPP Casing 665mm x 665mm
• Wall or frame mounted
• Pipework connections up to 54mm copper
• Electronic control system
• Web server interface
• Pressure independent primary flow control up to 12.5 m3/hour (208 litres/minute)

Pipework Connections

• Primary Flow In
• Primary Return Out
• Secondary Return In
• Secondary Flow Out
• Optional expansion relief

Electrical Connections

• 230vac 6A supply
• Ethernet
• Volt free auxiliary relay (x1)

Software functions

• Tracks primary temperatures to target 3.5°C lower setpoint on secondary
• Return temperature limit
• Remote on/off

Auxiliary relays

Additional relays can be added into system up to a limit of 4.

Where additional relays are required a dedicated relay interface can be provided offering up to 12 volt free or solid state relays.