REMEHA CALORA TOWER GAS 15S EX Installation And Service Manual
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REMEHA CALORA TOWER GAS 15S EX Installation And Service Manual

REMEHA CALORA TOWER GAS 15S EX Installation And Service Manual

Floor-standing high efficiency gas boiler
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Floor-standing high efficiency gas boiler
CALORA TOWER GAS 15S EX
CALORA TOWER GAS 25S EX
CALORA TOWER GAS 35S EX
300026141-001-07
Installation and
Service Manual
EN

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Summary of Contents for REMEHA CALORA TOWER GAS 15S EX

  • Page 1 Floor-standing high efficiency gas boiler CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX Installation and Service Manual 300026141-001-07...

  • Page 2: Declaration Of Conformity

    Declaration of conformity The device complies with the standard type described in the EG declaration of conformity. It was manufactured and commissioned in accordance with European directives. The original declaration of conformity is available from the manufacturer.

  • Page 3: Table Of Contents

    Contents Safety instructions and recommendations ..........6 General safety instructions .........6 Recommendations ..........7 Liabilities ...............8 1.3.1 Manufacturer’s liability ..........8 1.3.2 Installer’s liability .............8 About this manual ..................9 Symbols used ............9 2.1.1 Symbols used in the manual ........9 2.1.2 Symbols used on the equipment ......9 Abbreviations ............10 Technical specifications ................11 Homologations ............11...
  • Page 4 Contents 5.3.2 Positioning of the appliance ........19 5.3.3 Ventilation .............20 5.3.4 Main dimensions ...........21 Positioning the appliance ........25 5.4.1 Positioning the boiler on its own ......25 5.4.2 Fitting the boiler to a DHW tank ......27 5.4.3 Positioning the boiler to the left or right of a DHW tank ...............28 Hydraulic connections ........28 5.5.1...
  • Page 5 6.1.2 Meaning of the symbols on the display ....55 Check points before commissioning ....56 6.2.1 Preparing the boiler for commissioning ....56 6.2.2 Gas circuit .............56 6.2.3 Hydraulic circuit .............58 6.2.4 Electrical connections ...........58 Putting the appliance into operation ....58 Gas settings ............60 6.4.1 Adapting to another gas type ........60 6.4.2...
  • Page 6 Contents 8.2.6 Checking the automatic air vent ......80 8.2.7 Checking the safety valve ........80 8.2.8 Checking the condensate trap ......80 8.2.9 Checking the burner and cleaning the heat exchanger .............81 Troubleshooting ..................82 Error codes ............82 Shutdowns and lock-outs ........87 9.2.1 Lock out ..............87 9.2.2 Blocking ..............87...
  • Page 7 22/04/2016 - 300026141-001-07...

  • Page 8: Safety Instructions And Recommendations

    1. Safety instructions and recommendations CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX Safety instructions and recommendations General safety instructions DANGER This appliance can be used by children aged from 8 years and above and persons with...

  • Page 9: Recommendations

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 1. Safety instructions and recommendations CALORA TOWER GAS 35S EX Recommendations WARNING 4 Installation and maintenance of the boiler must be carried out by a qualified professional in compliance with prevailing local and national regulations.

  • Page 10: Liabilities

    1. Safety instructions and recommendations CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX Liabilities 1.3.1. Manufacturer’s liability Our products are manufactured in compliance with the requirements of the various applicable European Directives. They are therefore delivered with [ marking and all relevant documentation.

  • Page 11: About This Manual

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 2. About this manual CALORA TOWER GAS 35S EX About this manual Symbols used 2.1.1. Symbols used in the manual In these instructions, various danger levels are employed to draw the user’s attention to particular information.

  • Page 12: Abbreviations

    2. About this manual CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX Caution: danger, live parts. Disconnect the mains power prior to any operations. M002628-A Abbreviations 4 3CE: Collective conduit for sealed boiler...

  • Page 13: Technical Specifications

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 3. Technical specifications CALORA TOWER GAS 35S EX Technical specifications Homologations 3.1.1. Certifications CE identification no CE-0085CM0178 NOx classification 5 (EN 15502-1, EN 15502-2-1) Type of connection (Flue gas outlet) 3.1.2.
  • Page 14 3. Technical specifications CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX Boiler type CALORA TOWER CALORA TOWER CALORA GAS 15S EX GAS 25S EX TOWER GAS 35S EX General Nominal output (Pn) minimum-...

  • Page 15: Technical Description

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 4. Technical description CALORA TOWER GAS 35S EX Technical description General description Gas fired floor-standing condensing boiler 4 High efficiency heating. 4 Low pollutant emissions. 4 Optional domestic hot water production in combination with a DHW tank.

  • Page 16: Operating Principle

    4. Technical description CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX Operating principle 4.3.1. Skeleton Diagrams n Boiler self-standing Heat exchanger Hydroblock Heating flow Primary DHW tank flow Primary DHW tank return Heating return...

  • Page 17: Circulation Pump

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 4. Technical description CALORA TOWER GAS 35S EX n Boiler with 100SL / 160SL / 200SSL type domestic hot water tank Heat exchanger Hydroblock Heating flow Coil exchanger inlet Coil exchanger outlet...

  • Page 18: Water Flow Rate

    4. Technical description CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX 35 kW boilers H (mbar) Manometric height available for the heating circuit Water flow Useful output 35 kW (ΔT 20 K) 1000 1200 1400...

  • Page 19: Installation

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 5. Installation CALORA TOWER GAS 35S EX Installation Regulations governing installation WARNING Installation of the appliance must be done by a qualified engineer in accordance with prevailing local and national regulations.

  • Page 20: Choice Of The Location

    5. Installation CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX 4 Cleaning tools Choice of the location 5.3.1. Type plate The data plates provide important information on the appliance: serial number, model, gas category, etc.

  • Page 21: Positioning Of The Appliance

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 5. Installation CALORA TOWER GAS 35S EX 5.3.2. Positioning of the appliance Minimum recommended distance 1 1 0 5 0 0 4 Before mounting the boiler, decide on the ideal position for mounting, bearing the Directives and the dimensions of the appliance in mind.

  • Page 22: Ventilation

    5. Installation CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX 5.3.3. Ventilation Minimum recommended distance C003075-E n Connection to a chimney Do not obstruct the air inlets in the room (even partially). The compulsory cross section of aeration vents in the premises in which the boiler is installed must comply with the standards current in the country.

  • Page 23: Main Dimensions

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 5. Installation CALORA TOWER GAS 35S EX 5.3.4. Main dimensions n Key A Direct heating circuit return G¾" Z Direct heating circuit flow G¾" E Gas supply G1/2" R Condensates discharge - PVC pipe Ø...
  • Page 24 5. Installation CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX n Boiler with 100HL type domestic hot water tank 1482 128,5 121,5 1408 105,5 M002517-B 22/04/2016 - 300026141-001-07...
  • Page 25 CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 5. Installation CALORA TOWER GAS 35S EX n Boiler with 160SL type domestic hot water tank 1762 128,5 121,5 1688 105,5 1098 1096 70 40 M002518-B 917,5 128,5 105,5 121,5...
  • Page 26 5. Installation CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX n Boiler with 220SHL type domestic hot water tank 2042 128,5 121,5 1968 105,5 1378 1375 1274 1236 1160 1116 M002520-B 10 12...

  • Page 27: Positioning The Appliance

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 5. Installation CALORA TOWER GAS 35S EX Positioning the appliance CAUTION Have 2 people available. Handle the appliance with gloves. 5.4.1. Positioning the boiler on its own 1. Remove the packaging from the boiler but leave the shipping pallet in place.
  • Page 28 5. Installation CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX 6. Remove the retaining screws. C003111-D 7. Lift the boiler and position it on the ground C003217-C 22/04/2016 - 300026141-001-07...

  • Page 29: Fitting The Boiler To A Dhw Tank

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 5. Installation CALORA TOWER GAS 35S EX 8. Level the appliance using the adjustable feet. (1) Adjustment range: 0 to 20 mm 9. Slot the bottom of the front panel into the notches on the front of the appliance.

  • Page 30: Positioning The Boiler To The Left Or Right Of A Dhw Tank

    5. Installation CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX 4. Put the 2 screws in place at the front to attach the boiler to the DHW tank. 5.4.3. Positioning the boiler to the left or right of a DHW tank 1.

  • Page 31: Hydraulic Connection Of The Heating Circuit

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 5. Installation CALORA TOWER GAS 35S EX 5.5.2. Hydraulic connection of the heating circuit 1. Connect the heating water outlet pipe to the heating flow connection. 2. Connect the heating water return pipe to the heating return connection.

  • Page 32: Connecting The Condensate Discharge Pipe

    5. Installation CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX On an installation in which the flow can be fully disconnected from the return (e.g. by using thermostatic valves), a bypass should be fitted or the expansion vessel placed on the heating flow pipe.

  • Page 33: Filling The Condensate Trap

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 5. Installation CALORA TOWER GAS 35S EX 5.5.6. Filling the condensate trap 1. Remove the siphon. 2. Fill the siphon with clean water up to the mark. 3. Re-assemble the siphon.

  • Page 34: Flue Gas System Connections

    5. Installation CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX CAUTION Ensure that there is no dust in the gas pipe. Blow into the pipe or shake it before mounting. We recommend installing a gas filter on the gas pipe to prevent clogging of the gas valve unit.

  • Page 35: Lengths Of The Air/Flue Gas Pipes

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 5. Installation CALORA TOWER GAS 35S EX Configuration C 43(x) Air/flue gas connection to a collective conduit for watertight boilers (3CE P system) Configuration C Air and flue gas connection separated by means of a bi-...
  • Page 36 5. Installation CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX Type of air/flue gas connection Diameter Maximum length in metres CALORA CALORA CALORA TOWER GAS TOWER GAS TOWER GAS 15S EX 25S EX...

  • Page 37: Electrical Connections

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 5. Installation CALORA TOWER GAS 35S EX Electrical connections 5.8.1. Control unit The boiler is fully pre-wired. The electricity supply is made via connection cable to the mains (connection by 6 A, 230 V AC plug).

  • Page 38: Access To The Connection Terminal

    5. Installation CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX 4 The instructions on the circuit diagrams provided with the appliance. 4 The manufacturer’s instructions. CAUTION Separate the sensor cables from the 230 V cables.
  • Page 39 CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 5. Installation CALORA TOWER GAS 35S EX 2. Remove the front panel by pulling firmly from both sides. C003101-C 3. Lift the control system module support. 4. Pivot the control system module support.

  • Page 40: Position Of The Pcbs

    5. Installation CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX 7. Remove the 2 retaining screws. 8. Disassemble the protective cover from the flat bars. M002533-C 5.8.4. Position of the PCBs SCU-S191 5.8.5.

  • Page 41: Connecting A Direct Heating Circuit And A Domestic Hot Water Tank

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 5. Installation CALORA TOWER GAS 35S EX 5.8.6. Connecting a direct heating circuit and a domestic hot water tank n Connecting a direct heating circuit and a type 100SL /...
  • Page 42 5. Installation CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX n Connecting a direct heating circuit and a type 100HL / 220 SHL DHW tank SCU-S191 + TA - On/off S EXT S ECS C003827-D Connect the outside temperature sensor (Option).
  • Page 43 CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 5. Installation CALORA TOWER GAS 35S EX n Connecting a direct heating circuit and an independent domestic hot water tank On/off S EXT S ECS M002727-A Connect the outside temperature sensor (Option).

  • Page 44: Optional Electrical Connections

    5. Installation CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX Optional electrical connections 5.9.1. Position of the optional PCBs c-Mix SCU-S02 IF-01 SCU-S03 SCU-S191 SCU-X01 22/04/2016 - 300026141-001-07...

  • Page 45: Position Of The Connections On The Pcu Board

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 5. Installation CALORA TOWER GAS 35S EX 5.9.2. Position of the connections on the PCU board Open Input 230 V Therm Output 230 V DHW pump Domestic hot water sensor C003825-D 5.9.3.

  • Page 46: 0-10 V (If-01) Pcb

    5. Installation CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX n Connecting the board Connect the OT and 230 V connectors on the C-mix board to the PCU board in the boiler. 5.9.4.
  • Page 47 CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 5. Installation CALORA TOWER GAS 35S EX n Connection status (STATUS) When the boiler is locked out, the alarm signal may be transmitted via a potential-free contact (maximum 230 V, 1A) on the Nc and C terminals on the connector.

  • Page 48: Connection Possibilities For The Pcb (Scu- S02)

    5. Installation CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX n Analogue output (0-10 V) This outlet can be configured either for the temperature or the output. The two controls are described briefly below.
  • Page 49 CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 5. Installation CALORA TOWER GAS 35S EX If the boiler is fitted with the control PCB (SCU-S02), then this is automatically recognised by the automatic control unit of the boiler.
  • Page 50 5. Installation CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX n Control of external gas valve (EgV) If there is a heat demand, an alternating voltage of 230 VAC, 1 A (maximum) becomes available on the EgV terminals of the connector to control an external gas valve.

  • Page 51: Connection Possibilities For The Pcb (Scu- S03)

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 5. Installation CALORA TOWER GAS 35S EX 5.9.6. Connection possibilities for the PCB (SCU- S03) n Installing the PCB PCU 192 SCU-S SCU-S03 SCU-S03 C003820-A n Connecting the board Connect the BUS connector on the SCU-S03 board to the PCU board in the boiler.

  • Page 52: Connection Possibilities For The Pcb (Scu- X01)

    5. Installation CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX n Pressure switch minimum Gps The minimum gas pressure switch shuts the boiler down if the inlet gas pressure becomes too low. Connect the minimum gas pressure switch to the Gps terminals of the connector.
  • Page 53 CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 5. Installation CALORA TOWER GAS 35S EX The control PCB SCU-X01 has two potential-free contacts, which can be set as required. Depending on the setting, a maximum of two messages about the status of the boiler can be transmitted. See table...

  • Page 54: 5.10 Electrical Diagram

    5. Installation CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX 5.10 Electrical diagram 22/04/2016 - 300026141-001-07...

  • Page 55: 5.11 Filling The System

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 5. Installation CALORA TOWER GAS 35S EX 230V / 50Hz Power supply Primary control unit X117 Limiter thermostat, top MBO PUMP Boiler pump SONDE DHW Domestic hot water sensor X121 Reversal valve F6.3AT...
  • Page 56 5. Installation CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX 4. Check the tightness of the water connections. After switching on the power and if there is adequate water pressure, the boiler always runs through an automatic...

  • Page 57: Commissioning

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 6. Commissioning CALORA TOWER GAS 35S EX Commissioning Control panel 6.1.1. Functions of the keys Display > [Escape] or J key D Heating temperature key or [-] N DHW temperature key or [+]...

  • Page 58: Check Points Before Commissioning

    6. Commissioning CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX Defect: Burner level: Boiler indicates a fault. This can be seen from the e code Boiler is running at full or low load.
  • Page 59 CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 6. Commissioning CALORA TOWER GAS 35S EX n Removing the cover from the sealed chamber WARNING Ensure that the boiler is switched off. 1. Open the 2 retaining clips located on the front.

  • Page 60: Hydraulic Circuit

    6. Commissioning CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX 3. Open the main gas supply. 4. Check the gas supply pressure at the pressure outlet C on the gas valve unit. WARNING ¼...
  • Page 61 CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 6. Commissioning CALORA TOWER GAS 35S EX If a DHW sensor is connected and the anti-legionella function is activated, the boiler starts to heat the water in the DHW tank as soon as the vent programme has been completed.

  • Page 62: Gas Settings

    6. Commissioning CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX Gas settings 6.4.1. Adapting to another gas type WARNING Only a qualified engineer may carry out the following operations. The boiler is preset in the factory to operate on natural gas H (G20).
  • Page 63 CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 6. Commissioning CALORA TOWER GAS 35S EX n Checking/setting values O at full load 1. Set the boiler to full load. Press the two B keys simultaneously. The display shows h3 . The symbol B appears.
  • Page 64 6. Commissioning CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX Values at full load for G2.350 (Gas Ls) O CALORA TOWER GAS 15S EX 4,5 - 5,1 CALORA TOWER GAS 25S EX 4,5 - 5,1...
  • Page 65 CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 6. Commissioning CALORA TOWER GAS 35S EX Values at low load for (%) (Ireland) G20 (Gas H) CALORA TOWER GAS - 6,3 8,2 - 8,4 15S EX CALORA TOWER GAS...

  • Page 66: Basic Setting For The Gas/Air Ratio

    6. Commissioning CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX 6.4.3. Basic setting for the gas/air ratio If the gas/air ratio is out of adjustment, the gas valve unit has a basic setting. To do this, proceed as follows: 1.

  • Page 67: Reading Out Measured Values

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 6. Commissioning CALORA TOWER GAS 35S EX Reading out measured values 6.6.1. Reading out measured values The following current values can be read off the information menu 4 5t = State.
  • Page 68 6. Commissioning CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX The current values can be read as follows: 1. Press the two f keys simultaneously. The symbol Q flashes. 2. Confirm using key S . 5t is displayed, alternating with the current status 3 (for example).

  • Page 69: Readout From The Hour Counter And Percentage Of Successful Starts

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 6. Commissioning CALORA TOWER GAS 35S EX 6.6.2. Readout from the hour counter and percentage of successful starts 1. Press the two keys f simultaneously and then key [+] until the symbol \ flashes on the menu bar.

  • Page 70: Changing The Settings

    6. Commissioning CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX State 5t Sub-status 5v Burner for central heating operation 30 Temperature control 31 Limited temperature control (ΔT safety) 32 Output control 33 Temperature protection gradient level 1 (Modulate down)
  • Page 71 CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 6. Commissioning CALORA TOWER GAS 35S EX Factory setting CALORA CALORA CALORA Parameter Description Adjustment range TOWER GAS TOWER GAS TOWER GAS 15S EX 25S EX 35S EX Flow temperature: T 20 to 90 °C...
  • Page 72 6. Commissioning CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX Factory setting CALORA CALORA CALORA Parameter Description Adjustment range TOWER GAS TOWER GAS TOWER GAS 15S EX 25S EX 35S EX Minimum fan speed...
  • Page 73 CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 6. Commissioning CALORA TOWER GAS 35S EX Factory setting CALORA CALORA CALORA Parameter Description Adjustment range TOWER GAS TOWER GAS TOWER GAS 15S EX 25S EX 35S EX 0 = Hot water on...

  • Page 74: Calora Tower Gas 15S Ex

    6. Commissioning CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX Factory setting CALORA CALORA CALORA Parameter Description Adjustment range TOWER GAS TOWER GAS TOWER GAS 15S EX 25S EX 35S EX 0 = No detection...

  • Page 75: Modification Of The Installer-Level Parameters

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 6. Commissioning CALORA TOWER GAS 35S EX 6.7.2. Modification of the installer-level parameters Parameters p17 to df must only be modified by a qualified professional. To prevent unwanted settings, some parameter settings can only be changed after the special access code 0012 is entered.

  • Page 76: Return To The Factory Settings Reset Param

    6. Commissioning CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX 1. Press the two keys f simultaneously and then key [+] until the symbol ? flashes on the menu bar. 2. Select the installers menu using the key S . c0de appears on the display.

  • Page 77: Carrying Out An Auto-Detect

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 6. Commissioning CALORA TOWER GAS 35S EX 6.7.5. Carrying out an auto-detect After removing a control PCB, an auto-detect must be carried out. To do this, proceed as follows: 1. Press the two keys f simultaneously and then key [+] until the symbol ? flashes on the menu bar.

  • Page 78: Switching Off The Appliance

    7. Switching off the appliance CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX Switching off the appliance Installation shutdown If the central heating system is not used for a long period, we recommend switching the boiler off.

  • Page 79: Checking And Maintenance

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 8. Checking and maintenance CALORA TOWER GAS 35S EX Checking and maintenance Preventive maintenance with automated service message When it is time to carry out maintenance on the boiler, the following...

  • Page 80: Dealing With The Next Maintenance Message And Starting The New Maintenance Period

    8. Checking and maintenance CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX 8.1.2. Dealing with the next maintenance message and starting the new maintenance period For an interim service it is advisable to read out in the boiler service menu what maintenance service should be carried out.

  • Page 81: Checking The Expansion Vessel

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 8. Checking and maintenance CALORA TOWER GAS 35S EX 8.2.2. Checking the expansion vessel 1. Remove the cover from the sealed chamber. ¼ see chapter: "Removing the cover from the sealed chamber", page 57...

  • Page 82: Checking The Automatic Air Vent

    8. Checking and maintenance CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX 8.2.6. Checking the automatic air vent 1. Switch off the boiler electrical power supply. 2. Close the main gas inlet valve.

  • Page 83: Checking The Burner And Cleaning The Heat Exchanger

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 8. Checking and maintenance CALORA TOWER GAS 35S EX 8.2.9. Checking the burner and cleaning the heat exchanger CAUTION During inspection and maintenance operations, always replace all gaskets on the parts removed.

  • Page 84: Troubleshooting

    9. Troubleshooting CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX Troubleshooting Error codes The boiler is fitted with an electronic regulation and control unit. The heart of the control system is a microprocessor, the Comfort ©...
  • Page 85 CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 9. Troubleshooting CALORA TOWER GAS 35S EX Code Cause of Description Checking / solution the fault E:02 SU/PCU The boiler flow sensor has Bad connection short-circuited Check the wiring between the PCU PCB and the sensor...
  • Page 86 9. Troubleshooting CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX Code Cause of Description Checking / solution the fault E:07 SU/PCU The return temperature sensor Bad connection is on an open circuit Check the wiring between the PCU PCB and the sensor...
  • Page 87 CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 9. Troubleshooting CALORA TOWER GAS 35S EX Code Cause of Description Checking / solution the fault E:11 SU/PCU Difference between the flow Sensor fault and return temperatures too Check the Ohmic value of the sensor...
  • Page 88 9. Troubleshooting CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX Code Cause of Description Checking / solution the fault E:16 SU Detection of a parasite flame Ionization current present even though there is no flame...

  • Page 89: Shutdowns And Lock-Outs

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 9. Troubleshooting CALORA TOWER GAS 35S EX Code Cause of Description Checking / solution the fault E:39 PCU The BL inlet is open Bad connection Check the wiring External cause...
  • Page 90 9. Troubleshooting CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX Code Description Checking / solution Su:00 The PSU PCB is incorrectly configured Parameter error on the PSU PCB Revert to the factory settings: ¼See chapter "Return to the factory settings Reset Param", page 74...
  • Page 91 CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 9. Troubleshooting CALORA TOWER GAS 35S EX Code Description Checking / solution Su:15 Gas pressure too low Incorrect setting of the gas pressure switch on the SCU PCB Check that the gas valve is fully opened...

  • Page 92: Error Memory

    9. Troubleshooting CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX Code Description Checking / solution Su:32 The TAS is short circuited Bad connection Remarks: Domestic hot water production is stopped but may nevertheless be restarted for 72 hours after the boiler is switched off.

  • Page 93: Error Readout Memorised

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 9. Troubleshooting CALORA TOWER GAS 35S EX 9.3.1. Error readout memorised 1. Press the two keys f simultaneously and then key [+] until the symbol c flashes on the menu bar.

  • Page 94: Deletion Of The Error Display

    9. Troubleshooting CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX 9.3.2. Deletion of the error display 1. Press the two keys f simultaneously and then key [+] until the symbol c flashes on the menu bar.

  • Page 95: 10 Spare Parts

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 10. Spare parts CALORA TOWER GAS 35S EX 10 Spare parts 10.1 General When it is observed subsequent to inspection or maintenance work that a component in the appliance needs to be replaced, use only original spare parts or recommended spare parts and equipment.

  • Page 96: 10.2 Spare Parts

    10. Spare parts CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX 10.2 Spare parts 10.2.1. Casing 1003 1005 1021 1007 1027 1019 1014 1006 1023 1024 1011 1015 1009 1008 1004 1013 1020...

  • Page 97: Water Unit

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 10. Spare parts CALORA TOWER GAS 35S EX 10.2.2. Water unit 2036 2037 2037 2029 2001 2036 2004 2005 2008 2026 2030 2007 2010 2031 2032 2006 2028 2025 2024...

  • Page 98: Control Panel

    10. Spare parts CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX 10.2.3. Control panel 3008 3020 3021 3011 3018 3016 3013 3010 3012 3037 3014 3009 3015 3007 3017 3001 3004 3022-37 3005...

  • Page 99: Spare Parts List

    CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX 10. Spare parts CALORA TOWER GAS 35S EX 10.2.5. Spare parts list Markers Code no. Description Exchanger - Casing 1001 200018958 Complete base frame 1002 300024451 Adjustable foot M8-45 mm...
  • Page 100 10. Spare parts CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX CALORA TOWER GAS 35S EX Markers Code no. Description 2023 S100816 22x22.5 O-ring (10x) 2024 300025174 Pipe holding plate 2025 300025173 Plug 2026 300025162 Return pump pipe - complete exchanger...

  • Page 101: Directives

    Appendix Information on the ecodesign and energy labelling directives...
  • Page 102 Contents Contents Specific information ................. . 3 Recommendations .

  • Page 103: Specific Information

    1 Specific information Specific information Recommendations Note Only qualified persons are authorised to assemble, install and maintain the installation. Ecodesign Directive This product conforms to the requirements of European Directive 2009/125/EC on the ecodesign of energy-related products. Technical data Tab.1 Technical parameters for boiler space heaters Product name CALORA...

  • Page 104: Circulation Pump

    1 Specific information The back cover for contact details. Circulation pump Note The benchmark for the most efficient circulators is EEI ≤ 0.20. Disposal and Recycling Fig.1 Recycling Warning Removal and disposal of the boiler must be carried out by a quali­ fied installer in accordance with local and national regulations.
  • Page 105 1 Specific information 300026141 - ErP02 - 03052016...
  • Page 106 1 Specific information 300026141 - ErP02 - 03052016...
  • Page 108 Remeha B.V. Postbus 32 7300 AA Apeldoorn Tel: +31 55 5496969 Fax: +31 55 5496496 Internet: http://nl.remeha.com E-mail: remeha@remeha.com © Copyright All technical and technological information contained in these technical instructions, as well as any drawings and technical descriptions supplied, remain our property and shall not be multiplied without our prior consent in writing.

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Calora tower gas 25s exCalora tower gas 35s ex

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