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.
Advanced pump control (anti-seizure)
The MTA runs an automatic 24-hour anti-seizure cycle — if the heating circuit has not been used for 24 hours, the pump and heating regulation valve are exercised for 10 seconds to prevent debris build-up in the pump bearings. If the heating circuit pressure falls below 0.4 bar, the pump is stopped and an error is displayed, protecting the pump from running dry in the event of a leak. Domestic hot water production continues unaffected.
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, protecting the heat network from excessive primary draw during periods of high demand or cold weather.
SWEP AS heat exchangers
Ultra-compact dimensions
Fully electronic unit
Keep warm function (On/Off/Timed)
DHW priority
16 bar rated
Advanced diagnostics
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
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
Prepayment cut off
Optional flushing bypass valve available
Optional top entry pipe kits available
