Extension pack underfloor heating manifold details

Manual Air Eliminators: Used to vent unwanted air from the system.  The air eliminators must be shut off once all the air is out of the system.

Fill/Drain points: Used when filling and testing, also for maintenance.

Pressure/Mix Temperature Gauge: Indicates the mixed flow temperature and system pressure.

Thermostatic Sensing Element: Senses mixed water temperature and is attached to thermostatic head.

3 Port Mixer with Thermostatic Head: Used to blend the high temperature boiler flow to the correct mixed water temperature as set on the thermostatic head.

2 Port Motorised Valve: Used to control the flow of water to the manifold set. It is controlled by the clock thermostat, it also provides the 'go' signal for the boiler/boiler pump.

Dual-mix Balancing: Used to connect the 3 Port mixer into the boiler return and for limiting the boiler return, thus increasing the overall flow rates through all floor heating groups.