MTA Eco
TWIN
The MTA Eco Twin is an indirect twin plate heat interface unit designed to provide instantaneous domestic hot water (DHW) and space heating in an apartment or detached property when connected to a central energy source within a heat network. The unit provides heating loads up to 21kW and DHW loads up to 90kW.
SWEP AS heat exchangers
Ultra-compact dimensions
Fully electronic unit
Keep warm function (On/Off/Timed)
DHW priority
16bar rated
Unique HydraBlok® back plate
Primary flow rate limitation
Advanced diagnostics
Advanced pump control (anti-seizure)
Remote connectivity
Automatic low heating circuit pressure cut out
Provision for fitting of underfloor safety thermostat
First fix kit supplied as standard
Compatible with smart home controls
Return temperature limitation through control of heating ΔT
Weather compensation functionality (sensor required)
Servicing and parts replacement from front
Integrated apartment quick-fill device
Isolation & drain valves fitted as standard
Labelled water connections
Underfloor or radiator temperature set-points
PWM controlled A-rated modulating heating pump
Closed-cell foam insulation cover
Optional flushing bypass valve available
Optional top entry pipe kits available
Features in detail
Unique HydraBlok® back plate
Most other heat interface units available on the market are often a myriad of metal pipework and brass fittings. With this type of HIU every union is a potential source of a water leak, as the unions often loosen during transportation from the factory to the point of use. The MTA has little potential for leaks as it is not fitted with metal pipework and brass fittings. Everything is built upon a unique HydraBlok® backplate which contains all waterway channels moulded within a composite chassis.
Return temperature limitation
To ensure the heat network operates at maximum efficiency, the MTA will modulate the rate of water flow provided by the internal apartment heating circuit pump to match the heat load of the apartment at any one time. This maintains the designed heating circuit ΔT and limits the temperature of the water returning to the primary circuit.
Primary flow rate limitation
The MTA can limit the primary flow rate in both DHW and heating mode, independently of each other. Limiting the maximum flow rate that the HIU can take from the primary system, during space heating production, guarantees the design flow rate used to calculate system demand, is not exceeded.
Advanced pump control
The MTA features 24 hour pump exercising - if the heating circuit has not been used for 24 hours, the MTA will run the pump (and open the heating regulation valve) for 10 seconds, ensuring debris cannot build up in the pump bearings. The MTA also features a low pressure cut out. If the heating circuit pressure falls below 0.4bar, the pump will stop running. The unit will continue to produce DHW.
Advanced diagnostics
The control panel within the MTA provides a friendly, intuitive user experience. In addition, it provides an extremely high level of real time data, offering an overview of the current conditions within the network, HIU and apartment.
ModuHub (optional extra)
ModuHub enables remote monitoring and control of the MTA heat interface unit, enabling network operators to continuously optimise their heat networks, ensuring reduced running costs whilst improving service quality for the end users.
It can also be used to detect and alert maintenance providers to possible faults, allowing faults to be resolved remotely and considerably reducing the number of planned service/maintenance visits to site.
ModuHub creates an open protocol wireless billing network, removing the requirement for an Mbus network. Through our open API, meter reads can be retrieved by billing providers using LoRa Communication. Moduhub can be utilised for both prepayment or credit billing.
The ModuHub box is small and compact, allowing it to fit within the MTA casing.
