Energy metering, separation, heating and domestic hot water production module in electronic version

Description:
MACUK E S-SR PRO is an electronic Heat Interface Unit for heating and hot water applications. Thanks to the two plate heat exchanger the module also allows complete
separation from the primary circuit or central plant system. Suitable for apartments, terraced houses, semi-detached house with centralized heating system.

The production of domestic hot water is electronically controlled by a control unit and a brazed stainless steel plate heat exchanger that allows an immediate supply of DHW.
Thanks to the modulating valve with 5-seconds stepper motor actuator (installed in the primary return circuit) that partializes the water flow in the primary circuit, and unnecessary waiting times are eliminated.
The primary flow rate is also proportionally managed by the module: according to the demand of the sanitary user, the valve increases or decreases the opening of the
primary return circuit. All the energy not used in the DHW circuit is used in the heating circuit.

The module includes a built-in by-pass function, directly controlled by the electronics and the modulating valve and depends to the temperature set on the DHW sensor. During the stand-by phase, the DHW comfort function is activated, keeping the temperature of the exchanger at the set point value. If the temperature falls below the set temperature – hysteresis temperature (Tset-T hys) the two-way valve of the module is activated, taking heat from the primary circuit.

The electronic control can also manage 2 temperature levels in the heating circuit: for underflorr heating systems and for radiators/fan coil heating systems: both can be set by compensation curves.
The pump will change the speed according to the ∆T value between flow and return.
There is also a pressure transducer to protect the pump from damage caused by overpressures.

Plus / Advantages:
- Oversized heat exchanger to allow high instantaneous production of DHW with low inlet primary temperatures;

- Reduction of legionella risk and minimizes the formation of limescale deposits due to the high temperatures;

- Module fully insulated with EPP60 g/l (wall-hung version);

- Comfort function to maintain in temperature the heat exchanger;

- Complete separation of primary/secondary circuits;

- Complete management of the module by a special RS485 remote control;

- Quick” 2-way valve with 5-second motor stepper motor;

- Possibility to manage 2 different types of systems (high or low temperature);

- Possibility to supervise the module through RS485 protocol;

- Management of outside temperatures (cascade system) by connection RS485;

- Management of errors and alarms.

Variants

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Data Sheet