Related Manuals for Baxi Assure AWHP-IDU 4–8 E
Summary of Contents for Baxi Assure AWHP-IDU 4–8 E
- Page 1 Installation and Service Manual Air/water "Split Inverter" heat pump Baxi Assure Assure AWHP-IDU 4–8 E...
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Page 2: Table Of Contents
Contents Contents Safety instructions and recommendations ..............5 Safety . - Page 3 Contents 6.6.2 Connecting the heating circuit ............31 6.6.3 Connecting the safety valve drain pipe .
- Page 4 Contents Menu tree ................67 List of parameters .
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Page 5: Safety Instructions And Recommendations
1 Safety instructions and recommendations Safety instructions and recommendations Safety Operation Danger 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 haz... -
Page 6: General Instructions
1 Safety instructions and recommendations Domestic wa Caution Draining the domestic hot water tank: 1. Shut off the domestic cold water inlet. 2. Open a hot water tap in the installation. 3. Open a valve on the safety unit. 4. When the water stops flowing, the domestic hot water tank has been drained. -
Page 7: Refrigerant Safety
1 Safety instructions and recommendations Danger Danger of electric shock: the length of the conductors between the traction arrester device and the terminal blocks must be such that the active conductors are put under tension before the earth conductor. Only qualified professionals may carry out electrical connections, always with the power off. -
Page 8: Hydraulic Safety
1 Safety instructions and recommendations Limit temperature at the draw-off point: the maximum domestic hot water temperature at the draw-off point is subject to special regulations in the various countries in which the appliance is sold in order to protect the user. -
Page 9: Liabilities
1 Safety instructions and recommendations Removal and disposal of the heat pump must be carried out by a qualified professional in accordance with prevailing local and national regulations. After maintenance or repair work, check the entire heating system to ensure that there are no leaks. Remove the casing only to perform maintenance and repair work. -
Page 10: Symbols Used
Symbols used on the data plate Fig.3 1 Information concerning the heat pump: refrigerant type, maximum allowable operating pressure 2 The symbol indicates compatibility with the Baxi uSense connected thermostat. 3 Information on the electrical back-up: power supply and maximum output... -
Page 11: Technical Specifications
3 Technical specifications Technical specifications Homologations 3.1.1 Directives This product complies with the requirements of the following European Directives and Standards: Pressure Equipment Directive 2014/68/EU Low Voltage Directive 2014/35/EU Generic standard: EN 60335-1 Relevant standards: EN 60335-2-40, EN 60335-2-21 Electromagnetic Compatibility Directive 2014/30/EU Generic standards: EN 61000-6-3, EN 61000-6-1 Relevant Standard: EN 55014 This product complies with the requirements of European Directive... -
Page 12: Heat Pump Weight
3 Technical specifications Tab.3 Outdoor unit conditions of use Limit operating temperatures AWHP 4.5 MR AWHP 6 MR-3 AWHP 8 MR-2 Water in heating mode +18 °C/+55 °C +18 °C/+60 °C +18 °C/+60 °C Outdoor air in heating mode -15 °C/+35 °C -15 °C/+35 °C -20 °C/+35 °C Tab.4... -
Page 13: Combination Heaters With Medium-Temperature Heat Pump
3 Technical specifications Tab.8 Outdoor unit Outdoor unit Unit AWHP 4.5 MR AWHP 6 MR-3 AWHP 8 MR-2 Weight 3.2.4 Combination heaters with medium-temperature heat pump Tab.9 Technical parameters for heat pump combination heaters (parameters declared for medium-temperature application) Product name AWHP 4.5 AWHP 6 AWHP 8... -
Page 14: Sensor Specifications
3 Technical specifications Product name AWHP 4.5 AWHP 6 AWHP 8 MR-3 MR-2 Supplementary heater Psup Rated heat output Type of energy input Electricity Electricity Electricity Other specifications Capacity control Variable Variable Variable Sound power level, indoors - outdoors 43 - 58 43 - 65 51 - 65 Annual energy consumption under average conditions... -
Page 15: Dimensions And Connections
3 Technical specifications Fig.4 Variable pressure P Available pressure (kPa) D Water flow rate in cubic metres per hour (m 3 Speed 3 4 Speed 4 6 Speed 6 7 Speed 7 8 Speed 8 Fig.5 Constant pressure P Available pressure (kPa) D Water flow rate in cubic metres per hour (m 2 Speed 2 3 Speed 3... -
Page 16: Awhp 4.5 Mr Outdoor Unit
3 Technical specifications 3.3.2 AWHP 4.5 MR outdoor unit Fig.7 (417.5) 417.5 10 X 21 MW-1000430-2 1 1/4" refrigerant fluid connection 2 1/2" refrigerant fluid connection 3.3.3 AWHP 6 MR-3 outdoor unit Fig.8 404.5 23.2 22.3 193.5 154.5 MW-1000919-2 1 1/4" refrigerant fluid connection 2 1/2"... -
Page 17: Awhp 8 Mr-2 Outdoor Unit
3 Technical specifications 3.3.4 AWHP 8 MR-2 outdoor unit Fig.9 MW-M001442-4 1 3/8" refrigerant fluid connection 2 5/8" refrigerant fluid connection 7762758 - v05 - 19082020... -
Page 18: Electrical Diagram
PC SERVICE PORT Service Tool connector PUMP CH Heating circulating pump PUMP EXCHANGER Heat pump circulating pump ROOM UNIT CIRCA0 Baxi uSense connected room thermostat, on/off thermostat, modulating thermostat or OpenTherm thermostat for the CIRCA0 direct zone 7762758 - v05 - 19082020... - Page 19 3 Technical specifications SCB-10 PCB for controlling the additional heating and domestic hot water circuits SENSOR LIQUID Exchanger refrigerant temperature sensor SENSOR TARGET Water temperature sensor on the exchanger outlet SO+/SO- ENERGY COUNTER SO+/SO- energy meter WATER SENSORS Temperature sensors 7762758 - v05 - 19082020...
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Page 20: Description Of The Product
4 Description of the product Description of the product Operating principle The outdoor unit produces heat and transfers it to the indoor module via the refrigerant in the plate exchanger. The indoor module is equipped with a specific control system which is used to adjust the temperature of the heating water to the needs of the home. -
Page 21: Standard Delivery
4 Description of the product Standard delivery Tab.14 Package Contents Outdoor unit An outdoor unit A manual Indoor unit An indoor unit An accessories bag containing: One outdoor temperature sensor One mechanical pressure gauge with a T fitting One domestic hot water sensor An installation and service manual A user guide Package EH146... -
Page 22: Connecting Diagrams And Configuration
5 Connecting diagrams and configuration Connecting diagrams and configuration Installation with electrical back-up, two circuits and a domestic hot water tank Fig.13 Connect CIRC A0 to EHC–05 and CIRC B1 to SCB-10 CIRCB1 CIRCA0 230V - 400V 50Hz MW-1001774-1 1 Outdoor unit 7 Indoor unit 3 Three-way internal valve kit 8 Safety thermostat... -
Page 23: Applying The Parameters
5 Connecting diagrams and configuration Fig.14 Connect CIRC A0 to EHC–05 and CIRC B1 to SCB-10 CIRCB1 CIRCA0 SCB-10 X23 X19 EHC-05 MW-1001775-1 3 X19: Control signal for the immersion heater, used to 8 Domestic hot water recirculating pump control the immersion heater on the reversal valve kit 9 Safety thermostat for underfloor heating flow 4 X25: Reversal valve from the reversal valve kit: A0/ 10 X12 R-Bus: Thermostat connected to A0 circuit... -
Page 24: Connecting A Swimming Pool
5 Connecting diagrams and configuration 6. Configure the parameters of the (DHW) domestic hot water tank. Tab.17 Access Parameter Adjustment required DHW tank > Parameters, Max. DHW duration (DP047) 3 hours counters, signals > Parameters Maximum duration of the DHW Adjust the duration according to need production Min. - Page 25 5 Connecting diagrams and configuration The electrical connection of a swimming pool is made to the optional AD249 PCB. Fig.15 1. Connect the swimming pool's secondary pump to terminal block the selected circuit (CIRCA1, CIRCB1 or CIRCC1). Three-way valve terminal block Connecting the pump Earthing connector Earth wire...
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Page 26: Installation
6 Installation Installation Installation regulations Warning The components used for the connection to the cold water supply must comply with the prevailing standards and regulations in the country concerned. Pursuant to European Regulation 517/2014, the equipment must be installed by a certified operator whenever the refrigerant load is in excess of 5 tonnes of CO equivalent or when a refrigerant connection is necessary (the case with split systems, even when fitted with a quick... -
Page 27: Positioning The Indoor Unit
6 Installation Fig.18 1. Respect distances A, B and C between the outdoor unit 1 and the indoor module 2. Tab.20 A: Maximum/ B: Maximum C: Maximum minimum length height differ number of el ence bows AWHP 4.5 MR 2 to 30 m 30 m AWHP 6 MR-3 2 to 40 m... -
Page 28: Fitting The Assembly Rail
6 Installation 6.4.2 Fitting the assembly rail Fig.20 1. Drill 2 holes with a diameter of 8 mm. Important Extra holes are provided in case one or other of the standard locating holes prevents the correct location of the plug. Important Check that the wall is able to bear the weight of the indoor unit. -
Page 29: Selecting The Location Of The Outdoor Unit
6 Installation Fig.22 1. Respect the minimum positioning distances of the outdoor unit from the wall. Tab.21 Minimum distances in mm AWHP 4.5 MR 1000 AWHP 6 MR-3 1000 AWHP 8 MR-2 1000 6.5.2 Selecting the location of the outdoor unit Fig.23 To ensure the outdoor unit operates correctly, its location must meet certain conditions. -
Page 30: Choosing The Location Of A Noise Abatement 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 31: Installing The Outdoor Unit On The Ground
6 Installation 2. Ensure the base meets the following specifications: Specifications Reason Maximum width equal to the width of the outdoor unit. Height at least 200 mm greater then the average depth of the This helps to protect the exchanger from snow and prevent covering of snow. -
Page 32: Connecting The Safety Valve Drain Pipe
6 Installation 3. Calculate the volume of water in the heating circuit and check the volume of the appropriate expansion vessel. Use the maximum temperature of the circuit in heating mode or, failing that, a minimum of 55 °C. If the volume of the integrated 10-litre expansion vessel is not sufficient, add an external vessel to the heating circuit. -
Page 33: Connect The Refrigerant Connections To The Indoor Unit
6 Installation 6.7.2 Connect the refrigerant connections to the indoor unit Fig.29 Caution Keep the refrigerant connection in place on the indoor unit with a spanner so as not to twist the internal pipe. Fig.30 5/8" 5/8" 3/8" 3/8" EH146 100015480 1/2"... -
Page 34: Connecting The Refrigerant Connections To The Outdoor Unit
6 Installation 6.7.3 Connecting the refrigerant connections to the outdoor unit Fig.32 1. Remove the protective side panels from the outdoor unit. 2. Unscrew the nuts on the stop valves. Caution Keep the refrigerant connection in place on the outdoor unit with a spanner so as not to twist the internal pipe. -
Page 35: Testing The Leak-Tightness Of The Refrigerant Connections
6 Installation Tab.26 Quantity of refrigerant fluid to be added Length of refrigeration pipe 11 to 20 m 21 to 30 m 31 to 40 m 41 to 50 m 51 to 60 m 61 to 75 m AWHP 6 MR-3 0.2 kg 0.4 kg 0.6 kg... -
Page 36: Opening The Stop Valves
6 Installation 6.7.7 Opening the stop valves Once the leak-tightness has been checked and the refrigerant circuit evacuated, open the stop valves to allow the refrigerant fluid to circulate. Fig.36 1. Remove the cap from the refrigerant fluid stop valve, fluid end. 2. -
Page 37: Recommended Cable Cross Section
6 Installation Caution Secure the cable with the cable clamp provided. Be careful that you do not invert any of the wires. 6.8.2 Recommended cable cross section The electrical characteristics of the mains power supply available must correspond to the values given on the data plate. The cable will be carefully chosen according to the following information: Maximum intensity of the outdoor unit. -
Page 38: Routing The Cables
6 Installation 6.8.3 Routing the cables Caution Separate the sensor cables from the 230/400 V circuit cables. Secure all the cables exiting the indoor unit using the traction arrester devices supplied in the accessories bag. Fig.37 1 230 V~ circuit cables 2 0-40 V safety extra-low voltage cables 3 230 - 400 V electrical back-up power supply cables (only for models with an electrical back-up) - Page 39 X10 Speed control signal for the heat pump circulating pump BL2 IN X12 Options So+ So- R-Bus: Baxi uSense connected room thermostat, on/off Condensation thermostat, modulating thermostat or OpenTherm thermostat for the CIRCA0 direct zone BL1 / BL2: multifunction inputs...
- Page 40 6 Installation Description of the SCB-10 PCB Fig.39 12 11 10 1 R-Bus: Baxi uSense connected room thermostat, 11 System sensor 2 on/off thermostat, modulating thermostat or 12 System sensor 1 OpenTherm thermostat - CIRCA1 circuit 13 Pump and safety thermostat - CIRCA1 circuit...
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Page 41: Accessing The Pcbs
6 Installation Fig.40 1 CIRCC1 three-way valve 2 CIRCC1 circuit pump 3 CIRCC1 safety thermostat. Factory fitted bridge 4 CIRC AUX1 auxiliary pump 6.8.5 Accessing the PCBs Fig.41 1. Unscrew the two screws under the front panel by a quarter turn. 2. -
Page 42: Connecting The Cables To The Pcbs
6 Installation Fig.43 5. Remove the screw and the control panel cover. 6. Unclip the PCB cover. MW-1001205-1 6.8.6 Connecting the cables to the PCBs Fig.44 Keyed connectors are present on different terminal blocks as standard. Use these to connect the cables to the PCBs If there are no connectors on the terminal block to be used, take the connector provided with the kit. -
Page 43: Electrically Connecting The Outdoor Unit
6 Installation 6.8.7 Electrically connecting the outdoor unit Fig.45 MW-1001351-1 1 Power supply A AWHP 4.5 MR 2 Communication bus B AWHP 6 MR-3 / AWHP 8 MR-2 7762758 - v05 - 19082020... -
Page 44: Connecting The Indoor Module
6 Installation Fig.46 D AWHP 4.5 MR E AWHP 6 MR-3 F AWHP 8 MR-2 1. Remove the service panel. 2. AWHP 4.5 MR only: remove the earth connection screw from the appliance and discard. 3. Check the cross-section of the cable used, as well as its protection in the electric panel. -
Page 45: Connecting The Outdoor Unit Bus
6 Installation 6.8.9 Connecting the outdoor unit bus Fig.47 1. Connect the outdoor unit bus between the S2 and S3 terminals on the X23 connector in the indoor unit's EHC–05 central unit PCB. 2. Position the SW8–3 switch (except for AWHP 4.5 MR) for the outdoor unit PCB to ON. -
Page 46: Connecting The Outdoor Temperature Sensor
6 Installation Fig.49 1/2 Z 1/2 H (min. 2,5 m) MW-8800N001-3 1/2 H (min. 2,5 m) 1 Optimum location H Inhabited height controlled by the sensor 2 Possible position Z Inhabited area controlled by the sensor Positions to be avoided Avoid placing the outside sensor in a position with the following characteristics: Masked by part of the building (balcony, roof, etc.). -
Page 47: Connecting And Configuring The Electrical Back-Up
6 Installation 6.8.12 Connecting and configuring the electrical back-up Accessing the indoor module terminal blocks Fig.52 1. Remove the retaining screw. 2. Remove the protective cover. MW-1001223-1 Connecting the electrical back-up to the indoor unit Caution The length of the conductors between the cable clamp and the terminals must be such that the active conductors are put under tension before the earth conductor. -
Page 48: Connecting Options
Not used Tab.34 Connecting the options to X12 X12 connector Description R-Bus terminals Connection of the Baxi uSense connected ther mostat, an on/off thermostat (ON/OFF) or a MW-1001206-1 X13 X6 X7 X8 modulating thermostat. BL1 IN and BL2 IN Connection of multi-function dry contact inputs... -
Page 49: Connecting An On/Off Or Modulating Thermostat
6 Installation X12 connector Description SO+/SO- input Connection of an electrical energy meter Condensation ter Connection of a condensation sensor for under minals floor cooling 6.9.1 Connecting an on/off or modulating thermostat The on/off or modulating thermostat is connected to the R-Bus terminals on the EHC–05 PCB or the optional SCB-10 PCB. - Page 50 6 Installation 2. Configure the heat pump parameters Tab.37 Access Parameter Description Adjustment re quired Air Src Heat BL function BL input function selection Heating Cooling 23.5 pump > (AP001) Parameters, BL1 contact config. BL1 input contact configuration Closed counters, signals > (AP098) Closed: function active when BL contact is closed Adv.
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Page 51: Filling The Heating Circuit
10 to 500 Chlorides mg/litre ≤ 50 Other components mg/litre < 1 °f 7 - 15 Total water hardness °dH 4 - 8.5 mmol/l 0.7 - 1.5 If water treatment proves necessary, Baxi recommends the following manufacturers: 7762758 - v05 - 19082020... - Page 52 6 Installation Cillit Climalife Fernox Permo Sentinel 7762758 - v05 - 19082020...
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Page 53: Commissioning
7 Commissioning Commissioning General The heat pump is commissioned: When it is used for the first time; after a prolonged shutdown. Commissioning of the heat pump allows the user to review the various settings and checks to be made to start up the heat pump in complete safety. -
Page 54: Commissioning Procedure
7 Commissioning Commissioning procedure Caution Initial commissioning must be performed by a qualified professional. 1. Refit all the panels, fascias and covers on the indoor unit and outdoor unit. 2. Arm the circuit breakers on the electric panel: Outdoor unit circuit breaker Indoor unit circuit breaker Electrical back-up circuit breaker Fig.57... - Page 55 7 Commissioning 2. Check the flow rate in the installation. It must be above the minimum threshold. 3. Check the setting of the thermostatic mixing valve (for domestic hot water production). 4. Shut down the heat pump and carry out the following operations: After about 10 minutes, vent the air in the heating system.
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Page 56: Operation
8 Operation Operation Use of the control panel 8.1.1 Description of the user interface Fig.59 1 Rotary knob to select a menu or setting 2 Validation button 3 Back key to return to the previous level or previous menu 4 Main menu key 5 Display screen 6 LED for status indication: continuous green = normal operation... -
Page 57: Starting And Stopping The Heat Pump
8 Operation Icon Information Description of the icon DHW tank Temperature display for the domestic hot water Outdoor temperature Outdoor temperature display Starting and stopping the heat pump 8.2.1 Starting the heat pump 1. Switch on the outdoor unit and the indoor module. 2. -
Page 58: Settings
9 Settings Settings Accessing the Installer level 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. Select the icon. -
Page 59: Resetting Or Re-Establishing The Parameters
9 Settings 1. Press the key. 2. Select Advanced Service Menu > Save as commissioning settings. 3. Select Confirm to save the settings. When you have saved the commissioning settings, the option Revert commissioning settings is available in the Advanced Service Menu. 9.2.4 Resetting or re-establishing the parameters Configuring the type of outdoor unit and the type of back-up... -
Page 60: Improving Domestic Hot Water Comfort
9 Settings 1. Adjust the following domestic hot water production setting parameters: Tab.47 Access Parameter Description Adjustment required Hysteresis DHW Hysteresis temperature Increase the set point tem (DP120) relative to the DHW perature differential trigger DHW tank > temperature setpoint ing the domestic hot water Parameters, counters, tank to be charged... -
Page 61: Drying Screed Without The Heat Pump Outdoor Unit
9 Settings Fig.62 Number of days of drying Drying start temperature ° C Drying end temperature Important If the return water temperature is below 10 °C, screed drying will start using the electrical back-up until the return water reaches a 00:00 00:00 00:00... -
Page 62: Installing A Buffer Tank
9 Settings 9.2.9 Installing a buffer tank A buffer tank is used to separate the heating circuits or to store energy. The buffer tank is used with one or two temperature sensors. The CIRCA0 circuit cannot be used at the same time as a buffer tank. 1. -
Page 63: Configuring The Buffer Tank For Storage
9 Settings 5. Select the operating mode for the buffer tank. Buffer tank operating mode Adjustment required Buffer tank used as a low-loss By default, the buffer tank is managed as a low-loss header and does not require any spe header. - Page 64 9 Settings Tab.58 Buff Tank HC Strat. (BP002) Adjustment required Description Fixed setpoint The buffer tank set point temperature is equal to the value for the parameter Stp Buffertank Heat (BP003) or Setp Buffertank Cool (BP004). Example: 55 °C Calculated setpoint The buffer tank set point temperature is equal to the highest set point for the connected heating circuits with the overheating temperature set by the parameter BufferTankTcalOffset (BP013).
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Page 65: Configuring And Using The Cb04 Auto-Filling Option Kit
9 Settings 4. Configure the temperature set point parameters for the buffer tank load: Tab.61 Parameters to configure Access Parameter Description Default value > Installation Setup > Stp Buffertank Heat Temperature setpoint for buffer 70 °C Buffer tank > Parameters (BP003) tank in heating mode From 5 °C to 100 °C... -
Page 66: Supplying The Heat Pump With Photovoltaic Energy
9 Settings 2. If necessary, start filling the installation: Tab.65 Access Parameter Start water filling: Select this parameter to start filling the installa > Installation Setup > Heating circuit autofill > tion. The parameter Filling Inst Timeout (AP023) defines the maxi mum duration authorised to obtain a pressure of 0.3 bar during the first water fill with the auto-filling kit. -
Page 67: Reducing The Noise Level Of The Outdoor Unit
9 Settings 5. In order to voluntarily overheat the installation and benefit from low- tariff electricity, set the set point temperatures that can be exceeded. Tab.68 Voluntary overheating parameters Access Parameter Description Adjustment required Offset heating - PV Heating setpoint Set the authorisation to exceed (HP091) temperature offset when... -
Page 68: Installation Setup > Stratified Dhw Tank > Parameters, Counters, Signals
9 Settings Tab.70 Parameters menu Parameter Description Factory setting MaxZoneTFlowSetpoi Maximum Flow Temperature setpoint zone Electrical back-up: 75 nt (CP000) CIRCA0: can be set from 7 °C to 75 °C Zone Function Type of CIRCA0 connected to the EHC–05 PCB: Direct (CP020) Disable = heating circuit deactivated... -
Page 69: Installation Setup > Circa1/Circb1/Dhw1/Circc1/Circaux1 > Parameters, Counters, Signals
9 Settings Parameter Description Factory setting DHW management ECO mode: use of the heat pump only. Comfort mode: use of the heat pump ECO (Only HP) (DP051) and backup energy sources: ECO (Only HP): use of the heat pump only Comfort (HP+Boiler): use of the heat pump and back-ups Hysteresis DHW Hysteresis temperature relative to the DHW temperature setpoint... - Page 70 9 Settings Tab.74 Parameters menu Parameter Factory setting for each circuit Description MaxZoneTFlowS CIRCA1: Electrical back-up: 50 Maximum Flow Temperature setpoint zone etpoint CIRCB1: Electrical back-up: 50 For circuit A: Can be set from 7 °C to 100 °C (CP000 DHW1: Electrical back-up: 95 CP001 CIRCC1: Electrical back-up: 50...
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Page 71: Installation Setup > Air Src Heat Pump > Parameters, Counters, Signals
9 Settings Tab.75 Adv. Parameters menu Parameter Factory setting for each circuit Description ConfigZonePump CIRCA1: Zone output Configuration of Zone Pump Output CIRCB1: Zone output Zone output (CP290 DHW1: DHW mode CH mode CP291 CIRCC1: Zone output DHW mode CP292 CIRCAUX1: DHW looping Cooling mode CP293... - Page 72 9 Settings Tab.77 Adv. Parameters menu Parameter Description of the advanced parameters EHC–05 factory setting Max. HP Flow T. Maximum flow temperature of the heat pump without backup energy sources. (HP002) Can be set from 20 °C to 65 °C Min.
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Page 73: Installation Setup > Cascade Management B > Parameters, Counters, Signals
9 Settings Parameter Description of the advanced parameters EHC–05 factory setting Manual Heat Enable manual heat demand function. Demand (AP002) In this mode, the temperature set point used will be that for the AP026. Setpoint manual Flow temperature setpoint for manual heat demand. HD (AP026) Can be set from 7 to 70 °C Set point used when manual mode is active (AP002 = 1) -
Page 74: Installation Setup > Outside Temp > Parameters, Counters, Signals
9 Settings Parameter Description Factory setting SCB-10 CascInterStageTim Switch on and switch off timing for the producer of the cascade e (NP009) Can be set from 1 Min to 60 Min CascTOutsideCool Outdoor start temperature cooling of all stages in parallel mode Para (NP010) Can be set from 10 °C to 40 °C CascadeTypeAlgo... -
Page 75: Installation Setup > Analogue Input > Parameters, Counters, Signals
9 Settings Tab.81 Parameters Parameter Description Factory setting SCB-10 Digital input config Sets the general configuration of the digital input Stop heating + DHW (EP046) Stop heating + DHW Stop heating Stop DHW Forced setpoint Buffer Tank input Logic level Digi In Sets the logic level contact of the Smart Control Board digital input Closed (EP056) -
Page 76: Installation Setup > Appliance Status > Parameters, Counters, Signals
9 Settings Parameter Description Factory setting SCB-10 Min Setp Volt 0-10V Minimum voltage for 0-10 V input corresponding to the minimum set point (EP034) Can be set from 0 V to 10 V Max Setp Volt 0-10V Maximum voltage for 0-10 V input corresponding to the maximum set point (EP035) Can be set from 0 V to 10 V 9.4.10... - Page 77 9 Settings Tab.86 Access Parameter Description Value Delay StartBackup CH Delay time for starting the 20 minutes (HP030) backup energy source for the Air Src Heat pump > 23.5 heating circuits Parameters, counters, signals Can be set from 1 to 600 mi >...
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Page 78: Running The Back-Up In Domestic Hot Water Mode
9 Settings Back-up operation if an error occurs on the outdoor unit In case of an error on the outdoor unit, the electrical back-up starts immediately to guarantee heating comfort. Back-up operation when defrosting the outdoor unit When the outdoor unit is defrosting, the control unit ensures the protection of the system by starting up the back-up if necessary. - Page 79 9 Settings Tab.89 Access Parameter Description Adjustment required BL function BL input function selection The operation of the BL1 blocking input can (AP001) be set to: Air Src 23.5 Heat pump > Full blocking Parameters, Partial blocking counters, User reset locking signals >...
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Page 80: Operation Of The Switch Between Heating And Production Of Domestic Hot Water
9 Settings 9.5.3 Operation of the switch between heating and production of domestic hot water The system does not allow the simultaneous production of heating and domestic hot water. The switch logic between domestic hot water mode and heating mode operates as follows: Fig.72 A Min. - Page 81 9 Settings Tab.92 Configuration of the domestic hot water Access Parameter Description DHW management (DP051) ECO mode: use of the heat pump only. Comfort mode: use of the heat pump DHW tank > Parameters, counters, and backup energy sources signalsParameters > DHW comfort setpoint (DP070) Comfort temperature setpoint from the Domestic Hot Water tank...
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Page 82: 10 Maintenance
10 Maintenance 10 Maintenance 10.1 Accessing information on the hardware and software versions Information about the hardware and software versions of the different appliance components is stored in the user interface. To access: 1. Press the key. 2. Select the Version Information menu. 3. -
Page 83: Standard Inspection And Maintenance Operations
10 Maintenance 10.4 Standard inspection and maintenance operations Caution Only qualified professionals are authorised to carry out maintenance work on the heat pump and the heating system. Caution Before working on the refrigeration circuit, switch off the appliance and wait a few minutes. Certain items of equipment such as the compressor and the pipes can reach temperatures in excess of 100°C and high pressures, which may cause serious injuries. -
Page 84: Magnetic Filter Annual Maintenance
10 Maintenance 10.5.1 Magnetic filter annual maintenance 1. Switch off the appliance and close the valves for the heating circuits on the plate. Fig.73 2. Remove the magnet from the filter. The magnetic particles stuck inside the filter will drop to the bottom and be ejected via the drain. -
Page 85: Full Cleaning Of The Magnetic Filter
10 Maintenance Fig.77 6. Check the pressure in the installation. If the pressure is less than 1.5 bar, top up the water. 7. Open the valves on the connection plate. 8. Power the appliance back on. 9. Check the pressure in the installation. If the pressure is less than 1.5 bar, top up the water. - Page 86 10 Maintenance Fig.81 6. Disassemble the different parts of the mud pot. The magnetic particles stuck inside the filter body will drop to the bottom. MW-1001313-1 Fig.82 7. Clean the various parts with clean water. MW-1001314-1 Fig.83 8. Refit the sludge collector. Caution Risk of breakage.
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Page 87: Specific Maintenance Operations
10 Maintenance 10.6 Specific maintenance operations 10.6.1 Draining the heating circuit Fig.84 1. Connect a hose (internal diameter: 8 mm) to the drain valve on the heating circuit. 2. Open the drain valve. 3. Await the complete drainage of the heating circuit. 10.6.2 Replacing the battery in the control panel If the indoor module is switched off, the control panel battery takes over to... -
Page 88: 11 Troubleshooting
11 Troubleshooting 11 Troubleshooting 11.1 Resetting the safety thermostat Danger Before carrying out any work on the indoor unit, cut off its power supply and the electrical back-up immersion heater. If you suspect that the safety thermostat was triggered: 1. Cut off the power supply to the indoor unit and the electrical back-up immersion heaters by lowering the circuit breakers on the electric panel. - Page 89 11 Troubleshooting Tab.96 List of temporary error codes Error Message Description code H00.17 DHW sensor Closed Domestic Hot Water tank temperature sensor is either shorted or measures a temperature above range Check the wiring between the central unit PCB and the sensor. Check that the sensor has been fitted properly.
- Page 90 11 Troubleshooting Error Message Description code H00.57 T DHW Top Open Domestic Hot Water top temperature sensor is either removed or measures a temperature below range Check the wiring between the central unit PCB and the sensor. Check that the sensor has been fitted properly. Check the Ohmic value of the sensor.
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Page 91: Scb-10 Error Codes
11 Troubleshooting Error Message Description code H02.23 System flow error System water flow error active Flow problem Insufficient flow: open a radiator valve. The circuit is clogged: Check that the filters are not obstructed and clean them if necessary. Clean and flush the installation, No circulation: Check that the valves and thermostatic valves are open, Check that the circulating pump is working,... - Page 92 11 Troubleshooting Code Display text Description H00.72 TbufferTankTopClosed Buffer Tank top temperature sensor is either shorted or measures a temperature above range H00.74 TBufferTankMissing Buffer Tank temperature sensor was expected but not detected H00.75 TBufferTankTop Miss Buffer Tank Top temperature sensor was expected but not detected H00.76 TcascadeFlow Open...
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Page 93: Fault Codes
11 Troubleshooting Code Display text Description H10.29 Sensor Zone DHW open Temperature sensor Zone DHW open H10.30 T Zone DHW closed Domestic Hot Water temperature sensor Zone DHW closed H10.36 Sensor Zone AUX open Flow temperature sensor Zone AUX open H10.37 Sens. -
Page 94: Alarm Codes
11 Troubleshooting Tab.99 List of alarm codes Error code Message Description A02.06 Water Press Warning Water Pressure Warning active A02.18 OBD Error Object Dictionary Error A02.22 System flow warning System water flow warning active A02.55 Inval or miss SerNR Invalid or missing device serial number A02.80 Missing Cascade Ctrl Missing Cascade controller... -
Page 95: 12 Decommissioning And Disposal
12 Decommissioning and disposal 12 Decommissioning and disposal 12.1 Decommissioning procedure To decommission the heat pump temporarily or permanently: 1. Switch off the heat pump. 2. Shut off the electrical power supply to the heat pump: outdoor unit and indoor module. 3. -
Page 96: 13 Spare Parts
13 Spare parts 13 Spare parts 13.1 General If inspection or maintenance work reveals the need to replace a heat pump component, use only recommended spare parts and equipment. Caution Only genuine spare parts may be used. Important To order a spare part, give the reference number shown on the list. -
Page 97: Control System
13 Spare parts Markers Reference Description 7693224 Earth wire, length 1000 mm 7665153 Earthing connection nut 13.2.2 Control system Fig.89 Control panel MW-3000611-2 Tab.102 List of spare parts for the control panel Marker Reference Description S100860 SCU casing 7704493 SCB-10 PCB 7632096 White 2-pin connector 7632095... - Page 98 13 Spare parts Marker Reference Description 7681470 Oblong grommet membrane 7695390 MK3 display for heat pump 7676020 Control panel 115525 Cord for control panel 7675263 Grey complete On/Off switch Fig.90 PCBs 7705849 7744748 7673502 7673502 7750990 7750947 MW-1001291-2 Tab.103 List of spare parts for the PCBs Marker Reference Description...
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Page 99: Other Components
13 Spare parts 13.2.3 Other components Fig.91 MW-1001317-2 Tab.104 Markers Reference Description 300025284 Tank unit 300025388 Quick-connection T-shaped piece 7762758 - v05 - 19082020... - Page 100 13 Spare parts Markers Reference Description 300025387 T-shaped safety valve 200022010 3.5 bar safety valve 7674063 Heating flow pipe, tank 7709960 Eltek pressure gauge 7674060 Heating return pipe 300025325 Quick-release T connection plug 300025392 DN8 flexible hose, l450 300025395 9510-762 expansion vessel 0295174 Drain valve 1/4"...
- Page 101 13 Spare parts Markers Reference Description 94950198 Brass plug G1" female 300025231 Preheater pipe, tank 300025332 12 kW preheater 300025400 Male-female hexagonal spacer 7676000 Electrical back-up support 7679295 Terminal connection block, immersion heater 96568001 Finder relay, 220 V 30 A 200018815 COTHERM BSDP 0002 thermostat and syringe kit 95320950...
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Page 102: Outdoor Unit
13 Spare parts 13.3 Outdoor unit 13.3.1 AWHP 4.5 MR Fig.92 MW-1000573-2 Tab.105 Marker Reference Description 7652649 Top panel 7652667 Coil (evaporator/condenser) 7652668 Fan motor 7652669 Fan rotor 7652670 Grip 7652671 Front panel 7652672 Fan grate 7652673 Base frame 7652674 Compressor anti-vibration mount kit 7652675 SNB130FGBMT compressor... -
Page 103: Awhp 6 Mr-3
13 Spare parts Marker Reference Description 7652685 Sensor support 7652686 RT65 outdoor temperature sensor 7652687 RT68 coil temperature sensor 7652688 RT61–RT62 sensor kit 7652690 Fuse holder 7652691 T20AL / 250 V fuse 7652692 Supply terminal 7652693 Central unit PCB 7652694 Side panel, right 7652695 L61 coil... - Page 104 13 Spare parts Marker Reference Description 7673308 Hatch 7673309 Rear protection grid 7673310 Side panel, right 7673311 Motor bracket 7673312 Top panel Fig.94 Electric part MW-1000874-1 7762758 - v05 - 19082020...
- Page 105 13 Spare parts Tab.107 Marker Reference Description 7673314 Fan motor 7673315 Fan rotor 7604150 7673316 Self ACL 7673317 TH4–TH34 temperature sensor 7673318 SNB130FTCM2 compressor 7673319 Power receiver 7673320 CPLT 1/4 F - 1/2 F stop valves 7673321 LEV-B coil 7673322 LEV-A coil 7673323 TH3 temperature sensor...
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Page 106: Awhp 8 Mr-2
13 Spare parts 13.3.3 AWHP 8 MR-2 Fig.95 AWHP 8 MR-2: base frame MW-2000061-1 Tab.108 Marker Reference Description Model 7614219 Side panel, left 7614220 Fan grid 7614221 Front panel 7614222 Base panel SERVICE REF. : AWHP 8 MR-2 7705552 Base panel SERVICE REF. - Page 107 13 Spare parts Fig.96 AWHP 8 MR-2: electric part MW-2000062-1 Tab.109 Marker Reference Description Model 7614234 Fan motor SERVICE REF. : AWHP 8 MR-2 7705558 Fan motor SERVICE REF. : AWHP 8 MR-2 R2.UK 7614236 7614237 7614238 Battery (evaporator/condenser) 7614239 High pressure pressure switch 7614240 Compressor TNB220FLHMT...
- Page 108 13 Spare parts Marker Reference Description Model 7614245 Stop valve 5/8" 7614246 Output reserve header 7614247 Filter 7614248 High pressure sensor 7614250 Expansion valve 7614251 Linear expansion valve coil 7614252 Linear expansion valve coil 7614253 Outside sensor battery TH6/7 7614254 4-way valve 7614255 Coil...
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Page 109: 14 Reference
14 Reference 14 Reference 7762758 - v05 - 19082020... - Page 110 Benchmark Commissioning & Warranty Validation Service Record It is a requirement that the heat pump is installed and commissioned to the manufacturers’ instructions and the data fields on the commissioning checklist completed in full. To instigate the warranty the heat pump needs to be registered with the manufacturer within one month of the installation.
- Page 111 AIR TO WATER HEAT PUMP COMMISSIONING CHECKLIST Address: Heat Pump make and model: Heat Pump serial number: Commissioned by (PRINT NAME): Certified Operative Reg number (1): Company name: Telephone number: Company email: Company address: Commissioning date: Heating and hot water system complies with the appropriate Building Regulations? DNO notification? Building Regulations Notification Number (if applicable) (2) MCS installer registration Number (if applicable)
- Page 112 ADDITIONAL SYSTEM INFORMATON (Tick the appropriate boxes/Measure and Record) Water flow rate setting of the heat pump at commissioning (l/min): Gas Boiler Oil Boiler Electric Heater Other: Additional heat sources connected: Solar Thermal ALL INSTALLATIONS All electrical work complies with the appropriate Regulations The heat pump and associated products have been installed and commissioned in accordance with the manufacturer’s instructions The operation of the heat pump and system controls have been demonstrated to and understood by the customer The manufacturer’s literature, including Benchmark Checklist and Service Record, has been explained and left with the customer...
- Page 113 SERVICE RECORD It is recommended that your heating system is serviced regularly and that the appropriate Service Interval Record is completed. Service provider Before completing the appropriate Service Record below, please ensure you have carried out the service as described in the manufacturer’s instructions. Always use the manufacturer’s specified spare part when replacing controls.
- Page 114 SERVICE RECORD It is recommended that your heating system is serviced regularly and that the appropriate Service Interval Record is completed. Service provider Before completing the appropriate Service Record below, please ensure you have carried out the service as described in the manufacturer’s instructions. Always use the manufacturer’s specified spare part when replacing controls.
- Page 115 Original instructions - © 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 116 FOR UNITED KINGDOM For Baxi Customer Support and Technical Advice, contact us at 0344 871 1545 Please note calls may be monitored or recorded www.baxi.co.uk Open Monday - Friday: 8am - 6pm Weekends & Bank Holidays: 8.30am - 2pm Baxi, Brooks House Coventry Road, Warwick, CV34 4LL.