DOMUSA TEKNIK EVOLUTION EV HAC Series

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Summary

Description of Components

Control Elements

Digital Display

Shows operating information, settings, and alarms.

Boiler Temperature Adjustment

Adjusts the boiler's setpoint temperature for heating.

MODE Touch Button

Cycles through display options and settings.

ON Touch Button

Switches the boiler on or off.

RESET Touch Button

Resets lock-out modes and exits menus.

DHW Temperature Adjustment

Sets the domestic hot water temperature.

Safety Thermostats

Monitors temperature to prevent overheating and protect components.

Installation Instructions

3.1 Location

Specifies installation site and ventilation for accessibility.

3.2 Hydraulic Installation

Details water system connection and cleaning requirements.

3.3 Electrical Connection

Outlines electrical connection and thermostat wiring.

3.4 Oil Installation

Guides oil line installation per burner instructions.

3.5 Combustion Products Exhaustion

3.1 Installing a Sanit hot water tank (Optional)

3.2 Anti-legionella function (with hot water tank only)

Prevents legionella bacteria growth in the hot water tank.

3.3 Installing the SRAC2;EV Underfloor Heating Kit (Optional)

3.4 Installing heating circuit 2 (Optional)

4 COMBUSTION PRODUCTS EXHAUSTION

4.1 Combustion products exhaustion and air intake dual-duct device Ø80 (typr C53)

Details the dual-duct system for exhaust and air intake.

4.2 Double conduit to coaxial exhaustion transformation

4.3 Combustion products exhaustion and air intake horizontally-arranged coaxial device Ø80-125 (type C13)

4.4 Combustion products exhaustion and air intake vertically-arranged coaxial device Ø80-125 (type C33)

5 FILLING THE INSTALLATION

6 DIGITAL DISPLAY

7 TEMPERATURE SELECTION

7.1 Selecting the boiler set point temperature

How to adjust the main heating temperature via the control panel.

7.2 Selecting the DHW setpoint temperature (with hot water tank only)

How to set Domestic Hot Water temperature.

7.3 Selecting the Underfloor Heating flow setpoint temperature (with SRAC2;EV kit option)

8 OPERATION

8.1 Functioning in Heating Only mode

Basic heating operation without DHW or secondary circuits.

8.2 Functioning with a Sanit hot water tank

8.3 Heating circuit 2 functioning (Optional)

8.4 Functioning with an SRAC2;EV Underfloor Heating Kit (Optional)

9 ADDITIONAL FUNCTIONS

9.1 Pump anti-block function

Prevents circulation pumps from seizing when idle.

9.2 Anti-frost function

Protects the boiler and installation from freezing.

9.3 Boiler pressure sensor function

Monitors water pressure to prevent operational failures.

9.4 Telephone relay connection

Enables remote on/off control via telephone.

9.5 Room thermostat connection

Connects thermostats for room temperature control.

9.6 Anti-legionella function (optional) (with hot water tank only)

Prevents legionella bacteria growth in the hot water tank.

9.7 Keypad block function

10 E20 REMOTE CONTROL (OPTIONAL)

10.1 Functioning without an outdoor sensor

Remote control use without external weather input.

10.2 Functioning with an external sensor (Optional)

Remote control use incorporating outdoor weather data.

10.3 Functioning with a DHW tank (Optional)

10.4 Telephone relay function

11 SAFETY CUT-OUTS

11.1 Temperature safety cut-out

Boiler shuts down if temperature exceeds 110°C.

11.2 Burner cut-out

Burner shuts off due to anomalies in the burner or fuel installation.

11.3 Low pressure cut-out

Boiler shuts down if water pressure drops below 0.5 bar.

12 DRAINING THE BOILER

13 SHUTTING DOWN THE BOILER

14 FIRST START-UP

15 INSTALLATION DELIVERY

16 BOILER MAINTENANCE

16.1 Cleaning the boiler

Recommends yearly cleaning of the boiler chamber, ducts, and condenser.

16.2 Anti-frost protection

16.3 Boiler water characteristics

17 TECHNICAL DATA

18 CIRCULATING PUMP FLOW CURVES

18.1 Characteristic curves of the pump

Provides pump performance data relating flow rate and head.

18.2 Regulation of the circulation pump

Explains how to adjust the circulation pump speed via the control panel.

18.3 Pressure drop

Shows pressure drop graphs for different models.

19 DIAGRAMS AND MEASUREMENTS

20 ELECTRICAL CONNECTION DIAGRAM

21 ELECTRICAL DIAGRAM

22 ALARM CODES

23 BURNER

23.1 Assembly

Steps for assembling the burner to the boiler.

23.2 Burner start-up

Procedures for initial burner start-up and checks.

23.3 Adjusting the combustion conditions

Guidelines for optimal flame and emission adjustments.

Primary air adjustment

Combustion line adjustment

Correct position of electrodes

23.4 Oil pressure adjustment

23.5 Pipe operation

23.6 Oil supply piping diagrams

23.7 Technical specifications

23.8 Operating curves

23.9 Nozzles

23.10 Oil flow versus nozzle and pump pressure

23.11 Electrical connection diagram

23.12 Quick connector

23.13 Burner control operating sequence

24 SPARE PARTS LIST

25 FAILURES

Burner error code

Lists burner error codes and their causes for diagnosis.

Boiler failures:

Identifies common boiler issues and their solutions.

Circulating pump alarms

26 WARRANTY CONDITIONS