Topway LS :  Type 2 Pre-Assembled Manifolds

T2 manifolds

T2 manifolds can be used in heating applications not only for WHR Wall Hung Radiator or other heat emitter based systems but also for UFH underfloor heating/cooling systems using a separate low temperature heat source or mixing valve control set (like our T3 Control Set). For radiator based or perimeter heating systems time and temperature control is centralised at the manifold allowing individual room temperature control if required. No TRV is needed in the room itself which can be controlled by a room thermostat or programmable room thermostat. The thermostat is wired back to the manifold via a wiring centre which requires electrothermic heads on the return rail. This method is in compliance with Building Regulations Part L1 (conservation of fuel and power) and best practice GPG301, 302 and GIL 59 (CHeSS). The function of the TRV (temperature control) and the lockshield (balancing) are now integrated on the manifold. More importantly, the electrical interlock required by Building Regulations Part L1 is provided directly by the thermostats controlling room temperature. For underfloor heating systems, see details of our separate range of our T3 UFH Control Sets. The individual time and temperature control allowed by Topway T2 manifolds would be connected as for radiator systems using a wiring centre and one thermostat or programmable thermostat per underfloor heating zone.

The advantages

This state of the art option is pre-assembled onto the bracket, making for quick and easy installation. It has an electrothermic body integrated for each return circuit, ready to be actuated by the electrothermic head. The electrothermic heads, via a wiring centre, are connected to the room thermostats located in each room or zone. The manifold includes lockshields on the flow rail, double regulating for individual circuit isolation, and manual setting of flow control for heat balancing per radiator. It also includes automatic air vents and drain-off (filling) points as standard, and a standard option with integrated flowmeters is also available. All of these reduce commissioning time, no longer having to physically move to each room or zone.

Integrated functions

Central control for distribution, manual isolation by circuit or by floor, commissioning of each zone by balancing, system air venting and automatic “electrical” flow isolation when a room is up to temperature. This also allows individual circuit purging.

Optional functions

Measuring of flow using flowmeters, allowing reading of dynamic flow during balancing. Measuring of temperature using thermostats integrated into the ball valves, one on the flow and one on the return rail. These aid installation by allowing the installer to verify the hot water is flowing, and how much, as well as what flow and return temperatures are being achieved. Differential pressure by-pass, to prevent pump wear and tear.Programmable room thermostats, with set back facility, for the individual zones or rooms.Wiring centre, allowing boiler interlock and pump stop/start.