Centrometal El-Cm Classic Technical Instructions
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Centrometal El-Cm Classic Technical Instructions

Electric block-boiler for heating systems with thermoregulatory microprocessor
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HEATING TECHNIQUE
Centrometal d.o.o. - Glavna 12, 40306 Macinec, Croatia, tel: +385 40 372 600, fax: +385 40 372 61 1
Technical instructions
for installation, handling and maintenance
of electric block-boiler for heating systems with thermoregulatory microprocessor
El-Cm Classic

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  • Page 1 HEATING TECHNIQUE Centrometal d.o.o. - Glavna 12, 40306 Macinec, Croatia, tel: +385 40 372 600, fax: +385 40 372 61 1 Technical instructions for installation, handling and maintenance of electric block-boiler for heating systems with thermoregulatory microprocessor El-Cm Classic...

  • Page 2: Table Of Contents

    CONTENT Content 1. Description of symbols and instructions for safe work 2. Device data 2.1. Typology 2.2.1 Statement on compliance 2.2.2 Regular application Instructions for mounting Instructions for work Anti-frost protection and inhibitors Norms, regulations and standards Tools, materials and auxiliary measures Minimum distances and Inflammability of construction materials Product description 2.10...

  • Page 3: Description Of Symbols And Instructions For Safe Work

    Description of symbols and instructions for safe work Description of symbols and instructions for safe work Description of symbols Instructions for safe work Warnings General safety instructions Non-compliance with safety instructions may cause Warnings in text are marked by gray heavy injuries –...
  • Page 4 Description of symbols and instructions for safe work Life threat of electric power shock  Secure electric power connecting is done by authorised service! Comply with connecting scheme.  Prior to any work: turn off electric power supply. Secure against accidental turn on! ...
  • Page 5 Acceptable manner!   Secure device in ecologically acceptable manner and in authorised place! Cleaning   Clean outside of device with wet cloth...

  • Page 6: Device Data

    Typology These instructions are related to the following kind of device:  Boiler should be handled only by adults who are familiar with 6-27kW El-Cm El-Cm Classic instructions and work of the boiler.  Do not close safety valve! 2.2.1...

  • Page 7: Norms, Regulations And Standards

    Device data Norms, regulations and standards This product is in compliance with the following regulations: • EN 50110-1:2003 – Handling and work with electrical installations • EN 55014:2001 – Electrical-magnetic compatibility – conditions for consumers’ devices for households, electric devices and similar devices •...

  • Page 8: Product Description

    Device data Product description Minimum distances and burnable construction materials Basic components of boiler: Depending on valid regulations, other minimum • Boiler body distances could be applied, different than mentioned • Device frame and casing below: • Control unit  Comply with regulations of electrical installations and •...
  • Page 9 Device data 1 UL Return boiler’s line 12 Terminal for room thermostat 13 Microprocessor plate 2 IZ Start boiler’s line 14 Electric heaters contacts Boiler’s exchanger 15 Temperature sensor Electric heaters 16 Safety thermostat (STB) Expansion dish 17 Control panel with display Circulating pump 18 Flexible hose of expansion dish Vent valve (on pump)

  • Page 10: Waste Disposal

     Check if packaging is damaged during delivery.  Check if delivery is complete. Part Pieces Boiler El-Cm Classic Assembly Set Instructions for handling 2.12 Factory plate Factory data plate is placed on the external side of the boiler and contains the following technical data: •...

  • Page 11: Dimensions And Technical Data

    Device data 2.13 Dimensions and technical data 2.13.1 Dimensions and technical data for boiler El-Cm El-Cm Classic Figure 2: Dimensions and connections...
  • Page 12 Expansion dish volume Connection of start DN20 (3/4”) line Connection of return DN20 (3/4”) line Device mass (without water) Dimensions 7 710×430×230 (Height × Width × Depth) EK_CPU_LCTR1 Microprocessor Unit Table 3: Technical data of El-Cm El-Cm Classic Device...

  • Page 13: Transportation

    Transportation Transportation NOTE: Transport damages Pay attention on instructions for transportation on packaging! Use adequate transportation means, i.e. carts for bags with tighten strip. The product should be in horizontal position during transportation. Avoid shocks or collisions! Packed boiler put on carts for bags if needed secure it with strip and drive it to its mounting place.

  • Page 14: 4.2 Distances

    Installation Installation of device 4.2 Distances CAUTION: Human or material damages occurred because of irregular installation! DANGER: Fire threat due to burnable  Never install boiler without expansion dish (AG) and materials and liquids! safety valve. Do not dispose burnable materials and liquids ...
  • Page 15 Installation Demounting front boiler casing Mounting boiler Boiler casing can be removed for simple handling and NOTE: Material damage occurred by installation. irregular installation on the wall!  Unscrew 3 bolts at top lid  It is necessary to use proper material for fixing. ...
  • Page 16 Installing Hydraulic attachments execution NOTE: Installation damage due to bad quality of water! Heating installation can be damaged by NOTE: Material damages caused by corrosion or scale depending on water permeable connections! characteristics  Comply with filling requests for water according to ...

  • Page 17: Heating Pump Air Emission And De-Blocking

    Installation  Remove hose from the filling/exhausting faucet  Enter working pressure values and water quality into instructions for handling During the first filling of repeated filling or when change the water:  Comply with requests for filling water 4.6.2 Heating pump air emission and de-blocking ...

  • Page 18: Positions Of Introducer For The Introduction Of The Power Cable

    Electric connecting Electric connecting When connecting boiler on electric installation DANGER: Life threat from electric shock! take care on connections scheme and  Electric works must be done only by connecting plans. Respect mandatory qualified person. diameters of cables and fusses power outside the boiler.
  • Page 19 Electric connecting This device is equipped with three (3) sets of introducers for power cable. I set introducers (main set) is on lower side (below) of device. They are on lower plate of device in the back left corner (See Figure 6). It is intended for connecting device when power cable comes from the lower side of the boiler.

  • Page 20: Connecting Power (Voltage) Cable

    Electric connecting - Neutral (zero) duct line is connected to corresponding row Connecting power (voltage) cable immobilizer (N) which is placed on the right hand side of - Commencing should be performed according to the the fuses set with voltage trigger. Row immobilizer of zero mounting scheme as given in the Figure7.

  • Page 21: Scheme For Connecting Power (Voltage) Cable

    Electric connecting Scheme of power cable connecting Figure 8: Scheme of boiler connecting to mono-phase Power supply – ONLY FOR POWER OF 6kW AND 9kW Scheme of boiler connecting on Figure 9: three-phase power supply...

  • Page 22: Connect Boiler's External Control (Room Thermostat)

    Electric connecting Connect external control of boiler (room thermostat) Figure 10: Scheme of digital programmed room thermostat connecting with battery supply WARNING: Use room thermostat with no-voltage contacts Figure 11:...
  • Page 23 -3×2000W for boiler of 18kW -3×2667W for boiler of 24kW RE 3 –Heater relay for boiler of 6kW -3×3000W for boiler of 27kW –Contact K3 turn on relay (for boilers of all other power) Table 4: Legend of connecting schemes El-Cm El-Cm Classic...
  • Page 24 Electric connecting Figure 12: Boiler electric scheme El-Cm El-Cm Classic with nominal power of 6kW...
  • Page 25 Electric connecting Figure 13: Boiler electric scheme El-Cm El-Cm Classic with nominal power of 9kW and 12kW...
  • Page 26 Electric connecting Figure 14: Boiler electric scheme El-Cm El-Cm Classic with nominal power of 18kW, 24kW and27kW...

  • Page 27: Commissioning

    Commissioning Commissioning When complete below described works fill in the First turn on Commissioning log (Chapter 6.3). NOTE: Material damage due to incorrect handling  Instruct client/user how to handle device Before commissioning NOTE: Material damage occurred due to unprofessional operating! ...
  • Page 28 Heating installation handling Heating installation handling Working Instruction Safety Instructions  Only adults familiar with instructions and working mode may operate the boiler  Make sure there are no children in the boiler area.  Do not dispose or store inflammable materials within safe distance of 400 mm round the boiler ...

  • Page 29: Modifying Elements

    To select other parameters that wish to adjust use characteristics of the boiler El-Cm El-Cm Classic: button P. - Electric boiler El-Cm El-Cm Classic contains all Given temperature can be set in the range between elements of the boiler sub-station or small boiler °C ÷...

  • Page 30: Regulation Of Heating

    Regulation of heating Regulation of heating 7.3.2 Boiler given power adjusting - Circulating pump and electrical heaters turn on by command - Using button ▼ or ▲ select mode for adjusting given power – of room thermostat. Set power LED diode starts to flash. Now press button –...
  • Page 31 Heating installation handling 7.3.3 Warnings about pressure Pressure measurements are done by digital sensor If the pressure in the system decreases to P≤0.6 integrated in circular pump. If the sensor is stopped or in bar, the boiler works normally, but diode indicating circuit break, then all heaters and pump will turn off pressure measurements starts to flash slowly (Figure 18).
  • Page 32 Heating installation handling 7.3.4 Low temperature warning Present temperature displayed on the screen is possible If temperature of the system decreases to T≤4°C, for values T≤-9°C. Temperature below -9°C is not possible the boiler continues to work normally, but measuring to be displayed on the screen so the code EL will appear temperature indicator starts to flash slowly (Figure 21).
  • Page 33 Heating installation handling 7.3.5 Warning with high temperature If temperature increases to T≥100 °C, display of its value is If temperature of the system increases to T≥85°C, not possible to see on the screen so in this will appear the pump works continually (due to taking heating energy code EH meaning that temperature is T≥100 °C (Figure through pipe routing network), but measuring temperature...
  • Page 34 Signal and code of warning and mistakes 7.3.6 Signal and code of warning and mistakes ☼ Pressure - slow flashing Warning: Pressure near lower limit (0,4bar ≤ P ≤ 0,6bar) Or upper limit (2,2bar ≤ P ≤ 2,6bar) of allowed pressure Measure: Bring the system to the necessary pressure value ☼...
  • Page 35 7.3.7 Room temperature regulator This device is not produced for work without room temperature regulator. It must be installed in reference room. Managing temperature of all rooms is done by this remote control. Radiators in reference room should not be equipped by thermo-static valves or these must always be open.

  • Page 36: Cleaning And Maintenance

    Cleaning and maintenance Cleaning and maintenance 8.1 Boiler cleaning - Clean this device externally with wet cloth. DANGER: Life threat of electric power shock!  Electric power work must be done only Check working pressure; re-fill By qualified person water and air-vent installation ...
  • Page 37 Cleaning and maintenance Re-fill the water and air-vent the installation WARNING: Material damage due to heat tension. Filling heating installations in warm condition can produce cracks due to tension  Fill heating installation only in cold condition (temperature of starting duct lines of max 40 °C) WARNING: Material damage due to frequent re-filling!

  • Page 38: Inspection And Maintenance Log

    Cleaning maintenance Inspection and maintenance log Perform maintenance on annual basis or Record on commissioning, inspection and maintenance serves as addendum for photocopy. when inspection indicates installation condition requesting maintenance.  Executed works should be authorised by signature and date. Inspection and maintenance works when needed Page Date: ______...

  • Page 39: Environment Protection / Waste Disposal

    Environment protection/Waste disposal Environment protection / Waste disposal One of the basic concepts of business is environment protection. Quality of products, thriftiness and environment protection are equally valuable goals for us. It is critical to strictly comply with law and regulations on environment protection.

  • Page 40: Troubles And Troubleshooting

    Troubles and troubleshooting Troubles and troubleshooting Troubleshooting on regulations and hydraulics must be done by an authorised firm. For repairs use only original spare parts. Trouble: Description: Cause: Measure: Boiler does not react Display does not - Boiler is out of power supply - Provide power supply after turn on of main react, other...

  • Page 41: Instructions For Design

    - Energy Efficiency Index (EEI) ≤ 0.20 Max. Delivery Head = 6m Max. Volume Flow = 2,5m³/h 11.2 Systems on which the El-Cm Classic Plus Boiler can be connected - All systems for heating the space designed for 80/60 temperature regime (or lower)
  • Page 42 Centrometal d.o.o. shall not be responsible for possible incorrect data caused by printing errors or error made in transcription and all figures and diagrams are for explanatory purposes only and relevant adjustment have to be made at the spot. In any case, it reserves the right to modify its products as deemed to be required and useful without any prior notification.

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