REMEHA Elga Ace MB Installation, User And Service Manual
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REMEHA Elga Ace MB Installation, User And Service Manual

REMEHA Elga Ace MB Installation, User And Service Manual

Indoor unit, control box
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Installation, User and Service Manual
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Elga Ace MB Control Box

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Summary of Contents for REMEHA Elga Ace MB

  • Page 1 Installation, User and Service Manual Indoor unit Elga Ace MB Control Box...

  • Page 2: Table Of Contents

    Contents Contents Safety instructions ................. . . 6 Standard delivery .
  • Page 3 Contents Flushing the installation ............... . 31 6.5.1 Flushing new installations and installations less than 6 months old .
  • Page 4 Contents 9.2.2 Operation of the heating curve ............64 10 Connection and installation examples .
  • Page 5 Contents 15 Decommissioning and disposal ............... .97 15.1 Decommissioning procedure .

  • Page 6: Safety Instructions

    1 Safety instructions Safety instructions General safety instructions This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved.
  • Page 7 1 Safety instructions Install the appliance in accordance with national rules on electrical installation. In order to avoid the danger of an unexpected thermal circuit breaker reset, this appliance must not be powered through an external switch, such as a timer, or be connected to a circuit which is regularly switched on and off by the electricity provider. The appliance is intended to be permanently connected to the mains.

  • Page 8: Standard Delivery

    2 Standard delivery Responsibilities of the installer The installer is responsible for the installation and initial commissioning of the appliance. The installer must observe the following instructions: Read and follow the instructions given in the manuals provided with the appliance Install the appliance in compliance with prevailing legislation and standards Carry out initial commissioning and any checks necessary Explain the installation to the user...

  • Page 9: Symbols Used On The Indoor Unit

    Homologations 4.1.1 Directives Remeha hereby declares that the Tensio C radio-electrical type equipment is a product principally designed for domestic use and compliant with the following directives and standards. It has been manufactured and put into circulation in accordance with the requirements of the European Directives.

  • Page 10: Bluetooth ® Wireless Technology

    The specifications are valid for a new appliance with clean heat exchangers. Maximum operating pressure: 0.3 MPa (3 bar) Tab.1 Indoor unit technical specifications Unit Elga Ace MB Operating temperature °C 7 - 30 Storage temperature °C -25 - 60...

  • Page 11: Technical Data - Medium-Temperature Heat Pump Space Heaters

    4 Technical specifications Tab.4 Heating mode: outdoor air temperature +7 °C, water temperature at the outlet +35 °C. Performances in accordance with EN 14511-2. Measurement type Unit Mono 2 AWHP 4MR Mono 2 AWHP 6MR Mono 2 AWHP 8MR Heating capacity 4.57 6.63 8.68...
  • Page 12 4 Technical specifications Product name Mono 2 AWHP Mono 2 AWHP Mono 2 AWHP Declared capacity for heating for part load at an in­ door temperature of 20 °C and outdoor temperature = -7 °C = +2 °C = +7 °C = +12 °C = bivalent temperature = operation limit temperature...

  • Page 13: Sensor Specifications

    4 Technical specifications The back cover for contact details. 4.2.3 Sensor specifications Outside sensor specifications Tab.10 Outside sensor Temperature °C Resistance 3895 2987 2312 1799 1411 1117 Heating flow sensor specifications Tab.11 NTC 10K heating flow sensor Temperature °C Resistance Ω...

  • Page 14: Dimensions And Connections

    4 Technical specifications Dimensions and connections 4.3.1 Indoor unit Fig.5 MW-6070355-02 4.3.2 Outdoor unit Mono 2 AWHP 4MR Mono 2 AWHP 6MR Fig.6 3, 4 1320 1294 1 Routing of the 230 V cables 2 Routing of the 0-40 V cables 7863414 - v02 - 18032024...

  • Page 15: Outdoor Unit Mono 2 Awhp 8Mr

    4 Technical specifications 3 Return from the heating circuit R1” 4 Flow to the heating circuit R1” 4.3.3 Outdoor unit Mono 2 AWHP 8MR Fig.7 1403 1385 1 Routing of the 230/400 V cables 3 Flow to the heating circuit R1 1/4” 2 Routing of the 0-40 V cables 4 Return from the heating circuit R1 1/4”...

  • Page 16: Electrical Diagram

    4 Technical specifications Electrical diagram Fig.8 7845137 7845146 FUSE FUSE BLE Smart Antenna SCB-17B EHC-12 7845142 7845140 CB-21 230~ 50Hz X/Y/E GTW-30 Pump circuit Room unit Room unit ON/OFF 230 ~ 50Hz Pump Mixing Product valve Hydraulic power supply backup Pump Flow temp.

  • Page 17: Description Of The Product

    5 Description of the product Electrical diagram SCB-17B Optional PCB for controlling a second circuit SO+/SO- Energy counter SO+/SO- Energy meter See also Connecting the hydraulic backup, page 38 Description of the product Data plate Fig.9 The data plate must be accessible at all times. The data plate identifies the product and provides the following information: Appliance type,...

  • Page 18: Terminal Blocks

    5 Description of the product 6 SCB-17B optional PCB: managing a second heating 10 BUS cable earth connection circuit 11 Cable clamp 7 BLE Smart Antenna PCB: Bluetooth 12 L-BUS bus terminator ® 13 CB-21 PCB communication 14 EHC–12 main PCB: control system for the heat 8 Feedthrough cable gland pump and the first heating circuit (direct circuit) 9 TsTsXYE terminal block...

  • Page 19: Ble Smart Antenna Pcb For Bluetooth ® Communication

    5 Description of the product ® 5.3.3 BLE Smart Antenna PCB for Bluetooth communication Fig.13 X1 L-BUS between the EHC–12 PCB and the user interface 5.3.4 CB-21 PCB The CB-21 PCB is used to connect external options. Fig.14 X1 L-BUS to the EHC–12 and SCB-17B PCBs X2 L-BUS to external options and/or to a backup boiler 5.3.5 SCB-17B optional second circuit PCB...

  • Page 20: Bluetooth ® Label

    5 Description of the product ® Bluetooth label Fig.16 ® To establish the Bluetooth connection between the smartphone and the indoor unit, use the information shown on the label on the casing. 1 Name of appliance 2 Pairing code See also Commissioning procedure with smartphone, page 41 EHC.......

  • Page 21: Description Of Status Icons

    5 Description of the product 5.5.3 Description of status icons Tab.13 Icons Description Automatic switch from heating mode to cooling mode Steady symbol: heating active Flashing symbol: heating in progress Steady symbol: cooling active Flashing symbol: cooling in progress Frost protection activated Summer mode activated.
  • Page 22 5 Description of the product Tab.14 Symbol Description of the symbols Description menu Operating mode Switching the central heating on/off, and/or the cooling if applicable Heating temperature Setting the activities temperature Temporary heating temperature Temporarily modifying the requested room temperature until the next set­ change point temperature in the timer programme System holiday mode...

  • Page 23: Installation

    6 Installation Installation Installation regulations Caution The appliance must be installed by a qualified professional in accordance with applicable local and national regulations. Positioning the indoor unit 6.2.1 Choosing the location of the indoor unit Fig.22 The location of the indoor unit must guarantee safety, be accessible for maintenance, allow the front panel to be removed and the cover on the user interface to be flipped up.

  • Page 24: Putting The Outdoor Unit In Place

    6 Installation Putting the outdoor unit in place 6.3.1 Respecting the distance between the outdoor unit and the heating zone Fig.24 To ensure correct operation of the heat pump: 1. Respect the maximum length (A) between the outdoor unit and the heating zone.

  • Page 25: Selecting The Location Of The Outdoor Unit

    6 Installation Fig.25 Tab.15 Outdoor unit Unit Mono 2 AWHP 4MR 1000 Mono 2 AWHP 6MR 1000 Mono 2 AWHP 8MR 1500 6.3.3 Selecting the location of the outdoor unit Fig.26 To ensure the outdoor unit operates correctly, its location must meet certain conditions.

  • Page 26: Choosing The Location Of A Noise Reduction Screen

    6 Installation 5. Ensure the support meets the following specifications: Flat surface that can support the weight of the outdoor unit and its accessories (concrete base, concrete blocks or sill). No rigid connection to the building served to avoid the transmission of vibration.

  • Page 27: Removing The Protection From The Outdoor Unit

    6 Installation 1. Install the outdoor unit sufficiently high off the ground to allow condensates to be discharged correctly. 2. Ensure the base meets the following specifications: Specifications Reason Maximum width equal to the width of the outdoor unit. Snow should not be allowed to accumulate on the base. Height at least 200 mm greater than the average depth of the This helps to protect the exchanger from snow and prevent covering of snow.

  • Page 28: Volume Of The Expansion Vessel

    6 Installation Important The minimum volume of circulating water must be respected when all the valves are closed. Tab.16 35 °C - underfloor heating application Mono 2 AWHP 4MR Mono 2 AWHP 6MR Mono 2 AWHP 8MR Volume of water inside the outdoor unit (l) 2.16 2.16 2.44...
  • Page 29 6 Installation Fig.31 R1" R1" 1/4 R1" R1" 1/4 MW-6070612-1 A Direct heating circuit 6 Buffer tank (if necessary) C Second heating circuit with mixing valve 7 System separation heat exchanger 1 Anti-freeze valves 8 Pump 2 Manual drain valves 9 Non-return valves 3 Isolation valves 10 Mixing valve...

  • Page 30: Install The Non-Return Valve And The Unidirectional Flow Rate Limiter

    6 Installation Tab.21 Circuit Connections to be made Caution Direct heating In case of a direct circuit with radiators fitted with thermostatic valves, install a differential valve to ensure flow. Radiators Install an automatic air vent at the highest point on the heating circuit. Install two isolation valves.

  • Page 31: Frost Protection

    6 Installation 6.4.6 Frost protection In normal operation, the outdoor unit, the indoor unit and the heating circuit are protected against frost. To protect the outdoor unit during prolonged power outages and outdoor temperatures below zero, the following solution must be installed: Automatic draining solution Installation of two anti-freeze valves on the flow and return of the heating circuit as close as possible to the outdoor unit, outside the building.

  • Page 32: Checking The Heating Circuit

    6 Installation 6.6.2 Checking the heating circuit Fig.34 1. Check that the volume of the expansion vessel(s) is sufficient for the volume of water in the heating installation. 2. Check the inflation pressure of the expansion vessel(s). 3. Check that the heating circuit has a sufficient water fill level. If necessary, top up the water.
  • Page 33 6 Installation 6. Use a residual-current device (RCD) compatible with high harmonics for the power supply to the "inverter" outdoor unit. Tab.23 Power supply type Residual-current de­ Main electric supply vice (RCD) Single phase Type B 230 V (+6%/-10%) 50 Hz 7.

  • Page 34: Connecting The Electrical Circuits

    6 Installation 6.7.2 Connecting the electrical circuits Fig.36 2 x 0,35 mm² < 30 m Tout 230 V~ 3 x 0,75 mm² < 15 m 1,5 m 3 x 0,75 mm² shielded < 30 m 230 V~ DIF* 230 V~ Typ C A B B X Y E...

  • Page 35: Accessing The Indoor Unit Connectors

    6 Installation Refer to the section "Connecting a backup boiler" to connect a hydraulic backup. 6.7.3 Accessing the indoor unit connectors Fig.37 1. Unscrew the 2 screws on the front lower cover by a quarter turn. 2. Take off the front lower cover. 3.

  • Page 36: Connecting The Outdoor Unit To The Power Supply

    6 Installation 6.7.6 Connecting the outdoor unit to the power supply Fig.41 It is possible to use a 230 V phase on a three-phase electric panel, in compliance with the applicable standards. 4 / 6 kW The electrical connection of the outdoor unit must be made via a dedicated circuit.

  • Page 37: Installing And Connecting The Outdoor Temperature Sensor

    6 Installation 6.7.8 Installing and connecting the outdoor temperature sensor Fig.43 The connection of an outdoor temperature sensor is mandatory to ensure the correct operation of the appliance. 1. Choose a recommended location for the outdoor temperature sensor. 2. Fit the two wall plugs (diameter 6 mm) delivered with the outdoor temperature sensor.

  • Page 38: Fitting The Heating Flow Temperature Sensor

    6 Installation 1. Use a cable with a minimum cross section of 2 x 0.35 mm and a maximum length of 30 metres. Fig.46 2. Connect the outdoor temperature sensor to the Tout input on the X28 connector for the EHC–12 central unit PCB on the indoor unit. 6.7.9 Fitting the heating flow temperature sensor Fig.47...

  • Page 39: Connecting The External Options

    6 Installation Connecting a backup boiler controlled via a dry contact Fig.49 The backup boiler is connected to the EHC–12 central unit PCB of the indoor unit: 1. Connect the RAST connectors provided in the accessories bag X4 and X5 for the EHC–12 PCB. 2.

  • Page 40: Connecting An Electricity Meter

    7 Commissioning 6.7.12 Connecting an electricity meter Fig.52 Connecting an energy meter to the outdoor unit power supply can provide the heat pump with an accurate measurement of its electricity consumption. Do not install an electricity meter on the power supply of the indoor unit. 1.

  • Page 41: Action To Be Taken Before Commissioning

    The indoor unit is factory fitted with the BLE Smart Antenna PCB. The GTW-35 service tool is connected to the indoor unit. Fig.53 1. Download the Remeha Smart Start App application on Google Play or on the App Store. ®...

  • Page 42: Cn1 And Cn2 Parameters

    7 Commissioning Fig.55 Read the flow temperature. At the end of the vent cycle, if the heat pump does not start, check the flow temperature on the user interface. The flow temperature must be above 10 °C to enable the outdoor unit to start. This protects the condenser during defrosting.

  • Page 43: Settings

    8 Settings Settings Accessing the Installer level Fig.57 Certain parameters, which may affect the operation of the appliance, are protected by an access code. Only the installer is authorised to modify these parameters. To access the Installer level: 1. Press the button until the carousel screen appears.

  • Page 44: Configuring The Heating Circuit

    8 Settings 1. Follow the access path described below. Access path > Installer > Installation setup > Zone1 or Zone3 > Zone Function (CP020) 2. Select the value that corresponds to the type of circuit selected: Value Description Zone1 Zone3 EHC–12 SCB-17B Disable...
  • Page 45 8 Settings 1. Follow the access path described below to access the heat pump parameters. Access path > Installer > Installation setup > Heat Pump > General 2. To allow cooling of the heating zone, activate the heat pump heating function by configuring the parameter CH function on (AP016).

  • Page 46: Configuring The Backup Boiler

    8 Settings Configuring the backup boiler See also Hydraulic diagram, page 67 Connecting the hydraulic backup, page 38 8.6.1 Configuring the parameters of a backup boiler On/Off To ensure optimal performance of the heat pump system with a backup boiler, it is necessary to configure the parameters of the backup boiler. 1.

  • Page 47: Drying The Screed

    8 Settings 3. Choose energy consumption optimisation. Tab.26 Value of the Description Hybrid mode (HP061) parame­ Primary Energy Optimisation of primary energy consumption: the control system chooses the generator that consumes the least primary energy. The switch between the heat pump and the boiler occurs at the value of the coefficient of performance threshold COP Threshold (HP054) .

  • Page 48: Configuring A Room Thermostat

    8 Settings 3. Configure the screed drying parameters for stage 2: Parameter Description Adjustment required Screed drying time 2 Set the number of days spent in the second Number of days of drying for stage 2 ZP030 screed drying step ZP031 for Zone3 Screed start temp 2 Set the start temperature for the second step of...

  • Page 49: Configuring A Thermostat With A Heating/Cooling Control Contact

    8 Settings The R-Bus input can be configured to add the flexibility of using several types of on/off thermostat or OpenTherm (OT). 1. Follow the access path described below. Access path > Installer > Installation setup > Zone1 > General 2.

  • Page 50: Configuring A Buffer Tank

    8 Settings 3. Configure the parameters on Zone1. Parameter Description Adjustment required OTH LogicLev contact Opentherm Logic level contact of the zone Closed CP640 Closed: heating demand when contact is closed Open: heating demand when contact is open Open RevContactOTH cool Reversed OpenTherm contact in cooling mode for heat CP690 demand per zone...

  • Page 51: Configuring An Energy Meter

    8 Settings 2. Set the parameters for silent mode. Parameter Description Adjustment required HP silent mode Heat pump silent mode level Silent mode level 1 HP058 3 choices are possible: No silent mode : normal operation Silent mode level 2 Silent mode level 1 : level 1 sound reduction Silent mode level 2: level 2 sound reduction, signifi­...

  • Page 52: Resetting Or Re-Establishing The Parameters

    9 Parameters Number of pulses per Values to be configured for the Elec pulse value (HP033) parameter 1000 The electrical energy measurements are read on the CH consumed (AC005) and Cooling consumed (AC007) meters. The thermal energy from the backup boiler is factored in to provide the full tally of restored thermal energy.

  • Page 53: Installer > Installation Setup > Heat Pump

    9 Parameters 9.1.1 > Installer > Installation setup > Heat Pump In the Heat Pump sub-menu, you will find all parameters related to the behaviour of the heat pump. Tab.31 > General Parameters Description of the parameters Factory setting EHC–12 CH function on Enable central heating demand processing AP016...
  • Page 54 9 Parameters Tab.34 > Cooling Parameters Description of the parameters Factory setting EHC–12 Forced cooling mode The cooling mode is always enabled and no longer controlled by the AP015 outdoor temperature Cooling mode Configuration of the cooling mode AP028 Active cooling on Cooling permission Grant permission for the heat pump to be able to deliver cooling Allowed...
  • Page 55 9 Parameters Tab.36 > Blocking input (BL input) Parameters Description of the parameters Factory setting EHC–12 BL input setting Blocking input setting (1: Full blocking, 2: Partial blocking, 3: User Partial blocking AP001 reset locking) (BL1) Full blocking Partial blocking User reset locking Backup relieved Generator relieved...

  • Page 56: Installer > Installation Setup > Zone1 Or Zone3

    9 Parameters Tab.38 > Silent mode Parameters Description of the parameters Factory setting EHC–12 HP silent mode Heat pump silent mode level No silent mode HP058 No silent mode Silent mode level 1 Silent mode level 2 Low noise start time Start time of the heat pump low noise function 22:00 HP094...
  • Page 57 9 Parameters Parameters Description of the parameters Factory setting Factory setting Zone1 Zone3 User T.Room Desired room temperature setpoint for Morning mode 21 °C 21 °C Activity Can be set from 5 °C to 30 °C CP083 CP089 for Zone3 User T.Room Desired room temperature setpoint for Evening mode 22 °C...
  • Page 58 9 Parameters Parameters Description of the parameters Factory setting Factory setting Zone1 Zone3 Pump type The connected pump type Modulating PWM On/Off CP450 On/Off CP451 for Zone3 Modulating PWM Modulating LIN OTH LogicLev Opentherm Logic level contact of the zone Closed Closed contact...

  • Page 59: Installer > Installation Setup > Outdoor Temperature

    9 Parameters Parameters Description of the parameters Factory setting Factory setting Zone1 Zone3 Screed start temp Set the start temperature for the second step of screed drying 32 °C 32 °C Can be set from 7 °C to 60 °C ZP040 ZP031 for Zone3 Screed end temp...

  • Page 60: Bluetooth

    9 Parameters Tab.47 Parameters Description of the parameters Factory setting Zone1 Outdoor sensor Enable outdoor sensor AF60 AP056 No outdoor sensor AF60 QAC34 Summer Winter Outdoor temperature; Upper limit for heating 22°C AP073 Can be set from 10 °C to 30.5 °C in increments of 0.5 °C When set to 30.5 °C, automatic switching is deactivated, the system remains in Winter mode and heating is active.
  • Page 61 9 Parameters Tab.49 > Zone1 Signals Description of the signals Status Pump zone Status of the Pump of zone CM050 Zone Tflow Setpoint Current Flow temperature setpoint of zone in °C CM070 ZoneCurrentMode Zone Current Mode CM120 Scheduling Manual Anti legionella Current activity of the zone Current activity of the zone CM130...
  • Page 62 9 Parameters Tab.51 > Heat Pump Signals Description of the signals Status Appliance Current main status of the appliance. AM012 Sub status Appliance Current sub status of the appliance. AM014 System Flow Temp Flow temperature of appliance. in °C AM016 Flow rate Wate flow rate in the system in l/min AM056...

  • Page 63: Installer > Counters

    9 Parameters Signals Description of the signals Comm quality Quality of the communication between the control unit (CU) and the interface board in % HM024 Start compressor Request to start compressor HM030 9.1.6 > Installer > Counters Tab.54 Meters Description of the meters Service run hours Number of hours that the appliance has been producing energy since last service AC002...

  • Page 64: Operation Of The Heating Curve

    9 Parameters If the heat pump should also be limited, the backups are nevertheless authorised to operate to guarantee heating comfort. In heating mode, the backup is managed by the parameters: Bivalent temperature (HP000) and Delay startbackup CH (HP030). If Delay startbackup CH (HP030) is set to 0, the time delay for start-up of the backup is set depending on the outdoor temperature: the lower the outdoor temperature, the quicker the backup will be activated.
  • Page 65 9 Parameters Fig.65 MW-6070170-1 55 °C 50 °C 45 °C 34 °C 30 °C 26 °C 20 °C 15 °C 0 °C 20 °C 10 °C 0 °C -10 °C -20 °C -30 °C 1 Current Flow temperature setpoint of zone CM070 4 Outdoor temperature CM210 2 Maximum Flow Temperature setpoint zone 5 Curve base temperature CP210 / CP220 = 20 °C...
  • Page 66 9 Parameters Parameters Description of the parameters Outdoor temperature The outdoor temperature CM210 is affected by the position of the outdoor temperature sensor: CM210 check the sensor is positioned correctly. Current Flow temperature The flow setpoint temperature for the circuit CM070 is calculated according to the heating curve setpoint of zone parameters: CM070...

  • Page 67: 10 Connection And Installation Examples

    10 Connection and installation examples 10 Connection and installation examples 10.1 Installation with backup boiler, two circuits and a low loss header 10.1.1 Hydraulic diagram Fig.68 230V~50Hz 230V~50Hz MW-6070620-2 1 eTwist connected thermostats 8 Buffer tank (if necessary) 2 Mixing valve circuit kit with circulating pump 9 Magnetic strain filter 3 Direct circuit kit with circulating pump 10 Anti-freeze valves...

  • Page 68: Connecting And Configuring The Heat Pump

    10 Connection and installation examples 10.1.2 Connecting and configuring the heat pump Fig.69 230V~50Hz 230V~50Hz MW-6070614-2 FUSE FUSE SCB-17B Ts Ts CB-21 1 Outdoor temperature sensor 7 Power supply of the pump on the radiator circuit. The 2 eTwist connected thermostat for the radiator circuit pump output is limited to 450 W.
  • Page 69 10 Connection and installation examples 14 230 V power supply connection between the EHC– 15 Safety temperature limiter for underfloor heating flow 12 and SCB-17B PCBs 1. Connect the accessories and options to the EHC–12 PCB, respecting the 230-400 V and 0-40 V cable feedthroughs. 2.

  • Page 70: Installation With District Heating And A Direct Circuit

    10 Connection and installation examples 10. Configure the low loss header parameters. Parameter Description Adjustment required Boiler pump function Configuration of the boiler pump as zone pump or AP102 system pump (feed lowloss header) Backup in parallel The hydraulic backup is installed in parallel HP177 11.

  • Page 71: Connecting And Configuring The Heat Pump

    10 Connection and installation examples 10.2.2 Connecting and configuring the heat pump Fig.71 230V~50Hz TsTs CB-21 MW-6070616-1 1 Outdoor temperature sensor 5 Heating flow temperature sensor 2 eTwist connected thermostat 6 Hydraulic backup pump power supply 3 BUS connection linking the CB-21 and GTW–30 7 District network valve PCBs 8 Outdoor unit BUS connection...

  • Page 72: Installation With One Backup Boiler And One Low Loss Header

    10 Connection and installation examples 6. Follow the access path described below to access the BL2 multifunction input parameters. Access path > Installer > Installation setup > Heat Pump > Blocking input (BL input) 7. Configure the BL2 multifunction input. Parameter Description Adjustment required...

  • Page 73: Connecting And Configuring The Heat Pump

    10 Connection and installation examples 10.3.2 Connecting and configuring the heat pump Fig.73 CB-21 TsTs 230V~50Hz MW-6070618-1 1 Outdoor temperature sensor 5 Heating flow temperature sensor 2 eTwist connected thermostat 6 Outdoor unit BUS connection 3 ON/OFF contact for the hydraulic backup 7 GTW–30 bus connection 4 Hydraulic backup pump power supply 8 Pump power supply (maximum output: 450 W)

  • Page 74: Installation With One Backup Boiler And No Low-Loss Header

    10 Connection and installation examples 6. Configure the low loss header parameters. Parameter Description Adjustment required Boiler pump function Configuration of the boiler pump as zone pump or AP102 system pump (feed lowloss header) Backup in parallel The hydraulic backup is installed in parallel HP177 7.

  • Page 75: Connecting And Configuring The Heat Pump

    10 Connection and installation examples 10.4.2 Connecting and configuring the heat pump Fig.75 CB-21 TsTs 230V~50Hz MW-6070623-1 1 Outdoor temperature sensor 5 Heating flow temperature sensor 2 eTwist connected thermostat 6 Outdoor unit BUS connection 3 ON/OFF contact for the hydraulic backup 7 GTW–30 bus connection 4 Hydraulic backup pump power supply 1.

  • Page 76: 11 Operation

    11 Operation 11 Operation 11.1 Activate/deactivate the child lock The child lock prevents children from accidentally altering the settings. The child lock is only active when the screen has gone to sleep. When the child lock is active, the settings can be temporarily accessed by briefly pressing the buttons simultaneously.

  • Page 77: Personalising The Zones

    11 Operation 11.3 Personalising the zones 11.3.1 Definition of the term "zone" Fig.78 Zone: term given to the different hydraulic circuits. It indicates several rooms served by the same circuit. Tab.57 Example: Zone Factory-set name Zone 1 Zone1 Zone 2 Zone2 MW-1001145-2 11.3.2...

  • Page 78: Changing The Name Of An Activity

    11 Operation 11.4.2 Changing the name of an activity The name of the different activities is factory-set: Morning, Sleep, Home, Evening, Away and Custom. If you wish, you can personalise the name of the activities for all of the zones in your installation. Fig.82 1.

  • Page 79: Defining A Constant Room Temperature

    11 Operation Fig.86 2. Press the button. MW-6000861-02 Fig.87 3. Select Operating mode. 4. Select the desired operating mode: MW-6000874-1 Tab.59 Operating mode Description The room temperature is regulated according to the selected timer programme. Programming Recommended mode. Manual The room temperature is constant. Temporary temperature change The room temperature is forced for a defined period.

  • Page 80: Activating And Configuring A Timer Programme For Cooling

    11 Operation Fig.91 1. From the home screen, access the screen for the relevant zone. 2. Press the button. MW-6000861-02 Fig.92 3. Select Time programs heating. Three timer programmes are available. The programme that is currently active is marked with a tick. 4.

  • Page 81: Changing The Room Temperature Temporarily

    11 Operation Fig.94 1. From the home screen, access the screen for the relevant zone. 2. Press the button. MW-6000861-02 Fig.95 3. Select Time program cooling. The programmed activities for Monday are displayed. The last activity of the day remains active until the first activity of the following day.

  • Page 82: Managing The Heating And Cooling

    11 Operation Fig.98 3. Select Operating mode. MW-6000874-1 Fig.99 4. Select Temporary temperature change. 5. Indicate the temperature required throughout the override period. 6. Indicate the time when the override will end. 7. Select Confirm to confirm the override. MW-6000883-1 11.6 Managing the heating and cooling 11.6.1...

  • Page 83: Periods Of Absence Or Going On Holiday

    11 Operation Fig.104 1. From the home screen, press the button. MW-6070416-1 Fig.105 2. Select Forced summer On/Off. 3. Select the desired value: Off : the system automatically regulates the heating based on the outdoor temperature. On : the heating is off. Cooling is activated when the activation conditions are fulfilled.

  • Page 84: Frost Protection

    11 Operation Fig.108 1. From the home screen, access the screen for the relevant zone. 2. Press the button. MW-6000861-02 Fig.109 3. Select Operating mode. MW-6000874-1 Fig.110 4. Select Holiday. 5. Enter the start and end dates and times for the absence period. 6.

  • Page 85: Starting And Stopping The Heat Pump

    12 User instructions 11.8 Starting and stopping the heat pump 11.8.1 Starting the heat pump 1. Switch on the outdoor unit and the indoor unit. The heat pump will begin an automatic vent cycle (which lasts approx. three minutes), run each time the power is switched on. 2.

  • Page 86: 13 Maintenance

    13 Maintenance See also Frost protection, page 31 13 Maintenance 13.1 General An annual inspection with a leak-tightness check of the heating installation in accordance with prevailing standards is obligatory. Maintenance operations are important for the following reasons: To guarantee optimum performance To extend the life span of the equipment To provide an installation which offers the user optimum comfort over time...

  • Page 87: Standard Inspection And Maintenance Operations

    13 Maintenance 13.3 Standard inspection and maintenance operations An annual inspection with a tightness check in accordance with prevailing standards is obligatory. 13.3.1 Checking the safety components 1. Check that the safety components are operating correctly, particularly the safety valve on the heating circuit. 2.

  • Page 88: Replacing The User Interface Battery

    14 Troubleshooting 13.4 Replacing the user interface battery If the indoor unit is switched off, the user interface battery takes over to keep the correct time. The battery must be replaced when the time is no longer saved. 1. Remove the front panel. Fig.113 2.

  • Page 89: Blocking Codes

    14 Troubleshooting Tab.64 Code Message Description A02.55 Inval or miss SerNR Invalid or missing device serial number 14.1.3 Blocking codes A blocking code signals an anomaly affecting the heating system. Several possibilities: The system automatically attempts to correct the error (for example in the event of a fault related to the flow rate).
  • Page 90 14 Troubleshooting Code Message Description H00.49 THp Flow Missing Heat pump flow temperature sensor was expected but not detected Check the wiring between the main PCB and the sensor. Check that the sensor has been fitted correctly. Check the Ohmic value of the sensor. Replace the sensor if necessary.
  • Page 91 14 Troubleshooting Code Message Description H02.10 Full Block Full blocking of the device recognized BL input on the central unit PCB terminal block open: Check the contact on the BL input. Check the wiring. Check parameters AP001 and AP100. H02.23 System flow error System water flow error active Flow problem...
  • Page 92 14 Troubleshooting Code Message Description H06.21 Tret heat pump Heat pump return temperature sensor error Check the wiring between the EHC–12 PCB and the sensor. Check that the sensor has been fitted properly. Check the Ohmic value of the sensor. Replace the sensor if necessary.
  • Page 93 14 Troubleshooting Code Message Description H06.30 ODU temperature The outdoor unit temperature is anomalous Error code shown on the digital display of the outdoor unit: P4 The discharge temperature sensor connector is loose. Reconnect it. The discharge temperature sensor connector is wet or contains water. Drain the wa­ ter, dry the connector and add waterproof adhesive.
  • Page 94 14 Troubleshooting Code Message Description H06.58 HP outdoor temp Heat pump outdoor temperature sensor error Error code shown on the digital display of the outdoor unit: E6 H06.59 HP suction temp Heat pump compressor suction temperature sensor error Error code shown on the digital display of the outdoor unit: E9 The connector of sensor Th is loose.
  • Page 95 14 Troubleshooting Code Message Description H06.66 HP gas temp Heat pump gas temperature sensor error Error code shown on the digital display of the outdoor unit: H3 Check the sensor resistance The connector for sensor T2B is loose. Reconnect it. The connector for sensor T2B is wet or contains water.

  • Page 96: Lockout Codes

    14 Troubleshooting Code Message Description H06.78 ODU internal com Err Communication error between refrigerant system and hydronic system main control boards Error code shown on the digital display of the outdoor unit: H0 The cable is not connecting the main PCB B and the main control PCB of the hy­ draulic module.

  • Page 97: Accessing Information On The Hardware And Software Versions

    15 Decommissioning and disposal 1. Follow the access path described below to display and clear the error memory. Access path > Installer > Error history The list of the 32 most recent errors is displayed with the error code, a short description and the date. 2.

  • Page 98: Spare Parts

    16 Spare parts 7. Dismantle the heat pump. 8. Scrap or recycle the heat pump in accordance with applicable local and national regulations. 16 Spare parts 16.1 Casing Fig.115 MW-1002408-3 Tab.68 Marker Reference Description 7845892 7845147 Cable clamp (x5) 7863414 - v02 - 18032024...
  • Page 99 16 Spare parts Marker Reference Description S59367 EJOT KB35 x 12 (x10) screw 7845162 1M-F non-return valve S100316 Outdoor temperature sensor 7845160 Cable bracket - 520204000 (x5) 7845188 Bottom front cover 7788940 Light blue quarter turn fastener (x10) 7845894 Upper front cover 7788941 KB40 x 16 (x10) screw 7845144...

  • Page 100: Wire Harnesses And Pcbs

    16 Spare parts 16.2 Wire harnesses and PCBs Fig.116 L=15 m MW-1002409-2 Tab.69 Marker Reference Description 7845954 CB-21 PCB S62185 EJOT KB30 x 08 (x10) screw 7845899 L-BUS bus terminator 7845142 L-BUS EHC–12-CB-21 L390 mm wire harness 7845125 Sheet metal EHC–12 PCB support 7843603 D4 V-0 (x10) plastic spacer 7843622...

  • Page 101: 17 Product Fiche And Package Fiche

    17 Product fiche and package fiche Marker Reference Description 7845145 222.01.0087 cable clamp 7788941 KB40 x 16 (x10) screw 7845122 1.5 mm BUS cable protective earthing clip 7845140 Outdoor unit L-BUS - L240 mm outdoor temperature sensor wire harness 7845127 EHC–12 PCB 7845092 3-pin connector...

  • Page 102: Package Fiche - Medium-Temperature Heat Pumps

    17 Product fiche and package fiche 17.3 Package fiche - Medium-temperature heat pumps Important ‘Medium-temperature application’ means an application where the heat pump space heater or heat pump combination heater delivers its declared capacity for heating at an indoor heat exchanger outlet temperature of 55 °C.

  • Page 103: 18 Appendix

    18 Appendix The value of the mathematical expression 115/(11 · Prated), whereby "Prated" is related to the preferential space heater. The value of the difference between the seasonal space heating energy efficiencies under average and colder climate conditions, expressed in %. The value of the difference between the seasonal space heating energy efficiencies under warmer and average climate conditions, expressed in %.
  • Page 104 18 Appendix Tab.76 Name and temperature of the activities for cooling Factory-set name Factory-set tempera­ Activities Name and temperature defined by the customer ture Activity 1 Sleep 30 °C Activity 2 Home 25 °C Activity 3 Away 25 °C Activity 4 Morning 25 °C Activity 5...
  • Page 105 18 Appendix 7863414 - v02 - 18032024...
  • Page 106 18 Appendix 7863414 - v02 - 18032024...
  • Page 107 © 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. Subject to alterations.
  • Page 108 48720 Kotka Energy Net d.o.o. T +385 95 21 21 888 A.K. Miošića 22a E info@energynet.hr 43000 Bjelovar Marketbau - Remeha Kft. T +36 23 503 980 Gyár u. 2. F +36 23 503 981 E remeha@remeha.hu 2040 Budaors Euro Gas Ltd.

This manual is also suitable for:

Mono 2 awhp 4mrMono 2 awhp 6mrMono 2 awhp 8mr

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