Baxi ALYA WH-A Series Installation, User And Service Manual
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Baxi ALYA WH-A Series Installation, User And Service Manual

Reversible air/water "split inverter" heat pump
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Installation, user and service manual
Reversible air/water "Split Inverter" heat pump
ALYA WH-A
SYSMGR ALYA 4-6 E WH-A M
SYSMGR ALYA 4-6 E-EXP
SYSMGR ALYA 8-10 E WH-A M
SYSMGR ALYA 8-10 E-EXP
SYSMGR ALYA 12-16 E WH-A M
SYSMGR ALYA 4-6 H WH-A M
SYSMGR ALYA 8-10 H WH-A M
SYSMGR ALYA 12-16 H WH-A M

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  • Page 1 Installation, user and service manual Reversible air/water "Split Inverter" heat pump ALYA WH-A SYSMGR ALYA 4-6 E WH-A M SYSMGR ALYA 4-6 E-EXP SYSMGR ALYA 8-10 E WH-A M SYSMGR ALYA 8-10 E-EXP SYSMGR ALYA 12-16 E WH-A M SYSMGR ALYA 4-6 H WH-A M SYSMGR ALYA 8-10 H WH-A M SYSMGR ALYA 12-16 H WH-A M...

  • Page 2: Table Of Contents

    Contents Contents Safety instructions and recommendations ..............6 Safety .
  • Page 3 Contents 6.4.1 Accessing the indoor unit refrigerant system ..........45 6.4.2 Accessing the PCBs and connection terminal block .
  • Page 4 Contents 8.4.2 Configuring the cooling mode ............79 Configuring the backup boiler .
  • Page 5 Contents 10.5 Room temperature in a zone ..............125 10.5.1 Selecting the operating mode .

  • Page 6: 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 hazards involved.

  • Page 7: Electrical Wiring

    1 Safety instructions and recommendations Electrical wiring General Only a qualified installer or qualified service person are allowed to carry out the electrical work of the in­ door and outdoor units. Under no circumstances must this work be done by an unqualified individual since failure to carry out the work properly may result in electric shocks and/or electrical leaks.

  • Page 8: Refrigerant Piping

    1 Safety instructions and recommendations 1.4.2 Refrigerant piping Precautions Use tools and pipe components especially designed for use with R32 refrigerant. Use copper pipes deoxidised with phosphorus to carry the refrigerant. Store the refrigerant connection pipes away from dust and humidity (risk of damage to the compressor). Apply refrigerant oil to the beaded parts to facilitate tightening and improve the seal.

  • Page 9: Water Connections

    1 Safety instructions and recommendations Water connections General To drain the domestic hot water circuit. See chapter Maintenance. 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 10: Specific Instructions For Service, Maintenance And Breakdowns

    1 Safety instructions and recommendations Specific instructions for service, maintenance and breakdowns Precautions Maintenance work must be carried out by a qualified professional. Only a qualified professional is authorised to set, correct or replace the safety devices. For heat pumps with a refrigerant load of more than 5 tonnes of CO equivalent, the user must have an annual leak-tightness test performed on the refrigerant equipment.

  • Page 11: Standard Delivery

    2 Standard delivery Standard delivery Tab.1 Package Contents Outdoor unit An outdoor unit A manual Indoor unit An indoor unit Accessories bags containing: one outdoor temperature sensor a mounting rail, a protective shell for the refrigerant connections, one mechanical pressure gauge with a T-fitting, one hose, a key for maintenance operations on the magnetic filter, cable ties with fir tree mount,...

  • Page 12: Symbols Used On The Indoor Unit

    3 Symbols used Symbols used on the indoor unit Fig.1 Caution: Danger of electric shock, live parts. Disconnect the mains power (1) prior to carrying out any work (2). Fig.2 1 Protective earthing 2 Alternating current 3 Immersion heater (for SYSMGR ALYA E WH-A models) 4 230 VAC 50 Hz power supply 5 Earth MW-1002245-1...

  • Page 13: Technical Specifications

    Homologations 4.1.1 Directives Baxi hereby declares that the ALYA WH-A 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 14: Heat Pump

    4 Technical specifications Outdoor unit Associated/compatible indoor units HP Keymark Registration Number AWHP2R 16 MR SYSMGR ALYA 12-16 E WH-A M 007-DN0149 SYSMGR ALYA 12-16 H WH-A M AWHP2R 16 TR SYSMGR ALYA 12-16 E WH-A M 007-DN0149 SYSMGR ALYA 12-16 H WH-A M See also Product fiche, page 156 4.2.2...
  • Page 15 4 Technical specifications Tab.6 Cooling mode: outdoor air temperature +35 °C, water temperature at the outlet +18 °C. Certified performances at nominal load in accordance with EN 14511-2. Measurement Unit AWHP2R AWHP2R AWHP2R AWHP2R AWHP2R AWHP2R AWHP2R AWHP2R type 4 MR 6 MR 8 MR 10 MR...

  • Page 16: Heat Pump Weight

    4 Technical specifications 4.2.3 Heat pump weight Tab.9 Indoor unit with 1.5 kW heating element Indoor unit Unit SYSMGR ALYA 4-6 E WH-A SYSMGR ALYA 8-10 E WH-A Weight (empty) Tab.10 Indoor unit with 3-6 kW heating element Indoor unit Unit SYSMGR ALYA 4-6 E- SYSMGR ALYA 8-10...
  • Page 17 4 Technical specifications Product name Unit AWHP2R 4 AWHP2R 6 AWHP2R 8 ƞ Seasonal space heating energy efficiency under colder conditions ƞ Seasonal space heating energy efficiency under warmer conditions Declared coefficient of performance or primary energy ra­ tio for part load at an indoor temperature of 20 °C and outdoor temperature COPd = -7 °C...
  • Page 18 4 Technical specifications Product name Unit AWHP2R 10 AWHP2R 12 AWHP2R 12 Heat pump combination heater Prated Rated heat output under average conditions Prated Rated heat output under colder conditions Prated Rated heat output under warmer conditions Declared capacity for heating for part load at an indoor temperature of 20 °C and outdoor temperature = -7 °C 10.3...
  • Page 19 4 Technical specifications Product name Unit AWHP2R 10 AWHP2R 12 AWHP2R 12 Daily fuel consumption 0.000 0.000 0.000 fuel Annual fuel consumption (1) The rated heat output Prated is equal to the design load for heating Pdesignh , and the rated heat output of a supplementary heater Psup is equal to the supplementary capacity for heating sup(Tj) .

  • Page 20: Circulating Pump

    4 Technical specifications Product name Unit AWHP2R 16 MR AWHP2R 16 TR Type of energy input Electricity Electricity Other specifications Capacity control Variable Variable Sound power level, indoors - outdoors 37 – 56 37 – 56 Annual energy consumption under average conditions 7890 7890 Annual energy consumption under colder conditions...

  • Page 21: Sensor Specifications

    4 Technical specifications Fig.7 Available pressures 12-16 kW X Water flow rate (l/min) 1 Circulating pump speed 100% Y Available pressure (kPa) 4.2.6 Sensor specifications Outdoor temperature sensor specifications Tab.16 AF60 outdoor temperature sensor Temperature °C Resistance Ω 2392 2088 1811 1562 1342...

  • Page 22: Dimensions And Connections

    4 Technical specifications Dimensions and connections 4.3.1 SYSMGR ALYA WH-A Fig.8 Ø33 72.5 45 40 75 217.5 73.5 1 Heating circuit flow G 1" 5 1/4" or 3/8" refrigerant connection - liquid line 2 Heating circuit return G 1" 6 5/8" refrigerant connection - gas line 3 Flow to the backup boiler G1"...

  • Page 23: Outdoor Unit Awhp2R 4-6 Mr

    4 Technical specifications 4.3.2 Outdoor unit AWHP2R 4-6 MR Fig.9 1008 MW-1002152-1 1 1/4" refrigerant connection – liquid line 2 5/8" refrigerant connection - gas line 7802596 - v05 - 28062023 ALYA WH-A...

  • Page 24: Outdoor Unit Awhp2R 8-10-12-16 Mr 12-16 Tr

    4 Technical specifications 4.3.3 Outdoor unit AWHP2R 8-10-12-16 MR 12-16 TR Fig.10 1118 MW-1002153-1 1 3/8" refrigerant connection - liquid line 2 5/8" refrigerant connection - gas line Heat pump schematic diagram Fig.11 Refrigerant diagram in heating mode MW-1002274-1 ALYA WH-A 7802596 - v05 - 28062023...
  • Page 25 4 Technical specifications A Outdoor unit B Refrigerant connection pipes C Indoor unit Refrigerant circuit 1 Accumulator 2 Low pressure switch (1.4 bar) 3 Intake pipe temperature sensor 4 Rotary reciprocating compressor 5 Discharge pipe temperature sensor 6 Pressure sensor 7 4-way valve 8 High pressure switch (43 bar) 9 Outdoor ambient temperature sensor...

  • Page 26: Electrical Diagram

    4 Technical specifications Electrical diagram Fig.12 Configurations with 1.5 kW immersion heater Flowmeter + Condenser departure Condenser temp. sensor return temp. sensor 7768831 7214943 Frigorific liquid sensor 7802496 EHC-09 7802171 Frigorific Condensation sensor gas sensor So+/So- Energy counter BL2 Multifunction BL1 Multifunction R-BUS (Room Unit) Heating...
  • Page 27 4 Technical specifications Fig.13 Configurations with 3 -6 kW immersion heater Flowmeter + Condenser departure Condenser temp. sensor return temp. sensor 7768831 7214943 Frigorific liquid sensor 7802496 EHC-09 7802171 Frigorific Condensation sensor gas sensor So+/So- Energy counter BL2 Multifunction BL1 Multifunction R-BUS (Room Unit) Heating departure...
  • Page 28 4 Technical specifications Tab.20 Text on the diagram Description 230V~ 50Hz Power supply Backup Backup heater Backup power supply Power supply for the backup immersion heater BL1 Multifunction BL1 multifunction input BL2 Multifunction BL2 multifunction input Boiler Backup boiler Condensation sensor Condensation detection sensor Condenser return temp.

  • Page 29: Description Of The Product

    5 Description of the product Description of the product Data plates Fig.14 The data plates must be accessible at all times. They identify the product and provide important information: product type, date of manufacture (year - week), serial number, electrical power supply, operating pressure, electrical output, IP rating, refrigerant type.

  • Page 30: Main Components

    5 Description of the product Main components Fig.15 SYSMGR ALYA 4-6 E WH-A M, SYSMGR ALYA 4-6 E-EXP and SYSMGR ALYA 8-10 E WH-A M, SYSMGR ALYA 8-10 E-EXP with heating element 1 Electric panel 11 Mechanical pressure gauge 2 User interface bracket 12 Pressure sensor 3 User interface 13 Refrigerant circuit temperature sensor (gas line)
  • Page 31 5 Description of the product Fig.16 SYSMGR ALYA 12-16 E WH-A M with electric heating element 1 Electric panel 11 Mechanical pressure gauge 2 User interface bracket 12 Pressure sensor 3 User interface 13 Refrigerant circuit temperature sensor (gas line) 4 Automatic air vent 14 Refrigerant circuit temperature sensor (liquid line) 5 Electric heating element...
  • Page 32 5 Description of the product Fig.17 SYSMGR ALYA WH-A with backup boiler 1 Electric panel 10 Magnetic filter 2 User interface bracket 11 Mechanical pressure gauge 3 User interface 12 Pressure sensor 4 Automatic air vent 13 Refrigerant circuit temperature sensor (gas line) 5 Low-loss header 14 Refrigerant circuit temperature sensor (liquid line) 6 Heating flow temperature sensor...
  • Page 33 5 Description of the product Fig.18 Location of the PCBs - version with 1 EHC–09 main PCB: control system for the heat pump and the first 1.5 kW immersion heater heating circuit (direct circuit) 2 BLE Smart Antenna extension PCB: Bluetooth ®...
  • Page 34 5 Description of the product Fig.19 Location of the PCBs - version with 1 EHC–09 main PCB: control system for the heat pump and the first 3 -6 kW immersion heater heating circuit (direct circuit) 2 BLE Smart Antenna extension PCB: Bluetooth ®...

  • Page 35: Description Of The Connection Terminal Blocks

    5 Description of the product Fig.20 Location of the PCBs - version with 1 EHC–09 main PCB: control system for the heat pump and the first backup boiler heating circuit (direct circuit) 2 BLE Smart Antenna extension PCB: Bluetooth ® communication 3 Indoor unit power supply terminal block 6 SCB-04 extension PCB: management of a second heating circuit...

  • Page 36: Second Circuit Optional Pcb Scb-04

    5 Description of the product X21 Not used X22 Not used X23 Not used X24 230 V - 50 Hz power supply X25 Heating/domestic hot water 3-way directional valve connection X26 Circulating pump Zone 1 - maximum 450 W - only if a circulating pump is connected after a buffer tank X27 Power supply of main circulating pump of the PCB SCB-04 T out: outdoor temperature sensor...

  • Page 37: Description Of The Standby Screen

    5 Description of the product 5.4.2 Description of the standby screen Fig.25 The user interface on your appliance automatically goes into standby mode if no buttons are pressed for a period of 5 minutes: the backlighting is switched off and information relating to the general status of the appliance is displayed.

  • Page 38: Description Of The Carousel

    5 Description of the product Tab.22 Icons on the home screen and information Icon Information Description of the icon Air Src Heat Pump Heat pump flow temperature display Water pressure Current water pressure display Holiday Holiday mode in all circuits simultaneously Symbol representing the operation zone Zone 1/Zone 2 Temperature display for zone 1/2...

  • Page 39: Installation

    6 Installation Symbol Description of the symbols Description menu System settings Customising the user interface Version information Version information 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.

  • Page 40: Positioning The Indoor Unit

    6 Installation See also Preparing the refrigerant connections, page 56 Positioning the indoor unit 6.3.1 Choosing the location of the indoor unit Choose the ideal location of the indoor unit which will guarantee safety and accessibility in case of maintenance. Comply with current EN 60335-2-40 regulations to ensure adequate natural ventilation if using R32 refrigerant.

  • Page 41: Minimum Ground Surface Area And Surface Area Of Ventilation Openings

    6 Installation Fig.31 3. If the surface area of the installation is not sufficient, ventilation openings can be made to the outside, above ground level. 4. Leave a minimum distance of 1 metre from any source of flame or heat over 80 °C (open boiler, kitchen stove, etc.). Caution There is a risk that the R32 refrigerant will ignite in the event of a leak.

  • Page 42: Installing Ventilation Openings

    6 Installation Length of the refrigerant con­ Minimum unoccupied ground Surface area of the low ventila­ nection surface area S tion opening B AWHP2R 12/16 kW 2 - 15 0.03 10.4 0.07 12.5 0.08 0.08 14.7 (1) If the ground surface area of the installation room is insufficient, standard EN 60335-2-40 requires the installation of ventilation openings to adjacent rooms or to the outside.

  • Page 43: Installation In A Cupboard

    6 Installation 4. Define the surface area and the dimensions of the high ventilation opening A. The surface area of top opening A is at least equal to half of the surface area required for bottom opening B. Fig.34 5. Install ventilation grilles, if necessary. The air passage section of the grille must match the required ventilation surface area.
  • Page 44 6 Installation Fig.36 1. Drill 2 holes with a diameter of 10 mm. Extra holes are provided on the mounting rail in case one or other of the standard locating holes prevents the correct location of the plug. 2. Put the plugs in place. 3.

  • Page 45: Accessing The Internal Components

    6 Installation Accessing the internal components 6.4.1 Accessing the indoor unit refrigerant system Fig.38 1. Remove the front panel by unscrewing it and pulling upwards. MW-6070233-1 Fig.39 2. Pivot the PCB support. 3. Pivot the control panel support. MW-6070234-1 6.4.2 Accessing the PCBs and connection terminal block 1.
  • Page 46 6 Installation Fig.40 2. Remove the plate concealing the PCBs. MW-1001878-2 Fig.41 3. Pivot the PCB support for routing the cables and for making connections. 4. Pivot the control panel support to access the optional PCBs. MW-1001879-2 Fig.42 5. Remove the control panel rear cover. Important The control panel rear cover is secured with 3 anchoring points.

  • Page 47: Hydraulic Connections

    6 Installation Hydraulic connections 6.5.1 Special precautions for connecting the heating circuit Caution Hold the connection at the indoor unit end with a spanner to avoid twisting the pipe inside the appliance. Caution The hydraulic installation must be capable of handling a minimum flow rate at all times: If radiators are connected directly to the heating circuit, install a differential valve between the indoor unit and the heating circuit.

  • Page 48: Connecting The Hydraulic Circuits

    6 Installation Volume of the expansion vessel Check that the volume of the expansion vessel is appropriate for the volume of water in the heating circuit. To do this, refer to the NF DTU 65.11 and use the maximum circuit temperature in heating mode or, failing this, a minimum of 55 °C.
  • Page 49 6 Installation Fig.44 1/4" 5/8" 3/8" G1" G1" G1" G1" Ø 20mm Ø 16mm A Direct heating circuit 4 Mixing valve B Second heating circuit with mixing valve 5 Diverter valve 2 Thermostatic mixing valve 6 Filter 3 Safety unit 7802596 - v05 - 28062023 ALYA WH-A...

  • Page 50: Installing A Domestic Hot Water Tank

    6 Installation Tab.31 Circuit Connections to be made Install two stop valves. Direct heating If an external expansion vessel is required, fit it between the indoor unit and the stop valves. Install an automatic air vent at the highest point on the heating circuit. Radiators If all the radiators are equipped with thermostatic valves, fit a pressure actuated by­...

  • Page 51: Connecting The Condensate Drain

    6 Installation 6.5.4 Connecting the condensate drain A hose with the appropriate dimensions (not provided) must be used to drain the condensates. Fig.45 1. Connect the hose to the orifice located underneath the indoor unit. 2. Connect the outlet pipe to the waste water discharge. Caution The condensate drain must not be obstructed.

  • Page 52: Filling The Heating Circuit

    Unit ≤ 70 kW °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: Cillit™ CLimalife® Fernox Permo Sentinel® 6.7.2 Filling the heating circuit After flushing the installation and checking that the filters are clean, you can fill the heating circuit with water from the distribution network.

  • Page 53: Selecting The Location Of The Outdoor Unit

    6 Installation Fig.48 Tab.33 Outdoor unit Unit AWHP2R 4 MR 1000 AWHP2R 6 MR 1000 AWHP2R 8 MR 1500 AWHP2R 10 MR 1500 AWHP2R 12 MR 1500 AWHP2R 12 TR 1500 AWHP2R 16 MR 1500 AWHP2R 16 TR 1500 6.8.2 Selecting the location of the outdoor unit Fig.49 To ensure the outdoor unit operates correctly, its location must meet...

  • Page 54: 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 55: Installing The Outdoor Unit On The Wall Mounting Bracket

    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 56: Refrigeration Connections

    6 Installation Fig.55 2.1. Remove the access panel to the refrigerant components. x4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 x x x x x 4 x x x 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 x4 4 4 4 4 4 x4 4 4 4 4 4 4 4 Fig.56...

  • Page 57: Equipment

    6 Installation Important To avoid noise from pipes vibrating against each other, observe the following: Leave a space between the pipes during connection. Provide enough slack in the pipes. Use sufficient insulated pipe support clamps to prevent direct contact with light surfaces like wooden panels. Insulate the pipes with noise-damping rubber or other insulation.

  • Page 58: Flaring Work

    6 Installation 6.9.3 Flaring work Carry out flaring work using a flaring tool and compare the flared work with the figure provided. To guarantee leak-tightness, cut the flared section and repeat the flaring work if the flare fitting is faulty. Fig.58 Good example: a Smooth all around...

  • Page 59: Connecting The Refrigerant Connections To The Outdoor Unit

    6 Installation See also Protecting the refrigerant connections, page 62 6.9.5 Connecting the refrigerant connections to the outdoor unit Fig.62 Caution Use a second spanner to stop the refrigerant connection from twisting. MW-1002117-1 Fig.63 1. Remove the protective side panel from the outdoor unit. Fig.64 2.

  • Page 60: Testing The Leak-Tightness Of The Refrigeration Connections

    6 Installation 6.9.6 Testing the leak-tightness of the refrigeration connections Caution When conducting the leak test, the entire refrigerant circuit must be accessible. After the leak test, if a component is permanently deformed, it must be replaced. Fig.66 1. Remove the plug from the service connection on the stop valve. 2.

  • Page 61: Add Refrigerant If Necessary

    6 Installation Fig.69 1. Open the valve on the liquid line with an Allen key by turning counter- clockwise until it stops. 2. Put the cap back in place. Torque load 14-18 Nm. MW-1001819-1 Fig.70 3. Open the valve on the gas line with an Allen key by turning counter- clockwise until it stops.

  • Page 62: Protecting The Refrigerant Connections

    6 Installation 1. Stick the label in your language over the English text on the R32 field парниковым эффектом Fluoritud gaas Заправлен Gaz uorurat charge sticker. ja väljalaskmine: фторированным газом şi încărcarea: Latviešu Lietuviškai Malti 2. Fill in the R32 field charge sticker: Satur uorētās siltumnīcefekta gāzes Sudėtyje yra šiltnamio efektą...

  • Page 63: Checking The Refrigeration Circuit

    6 Installation Fig.72 2. Fold the protection over the pipes. 3. Secure the protection with the Velcro strip. 6.9.12 Checking the refrigeration circuit 1. Check the position of the outdoor unit, distance from the wall. 2. Check the tightness of the refrigerant connections. 3.

  • Page 64: Connecting The Electrical Circuits

    6 Installation 6.10.2 Connecting the electrical circuits Fig.73 SYSMGR ALYA WH-A with 1.5 kW or 3-6 kW immersion heater and AWHP2R 4-6-8-10-12-16 MR 12-16 TR outdoor unit 230V~ Laux Naux Typ C 3x1,5 mm² 2x0,35 mm² Tout < 30 m 1,5kW / 230 V~ Backup 3x1,5 mm²...

  • Page 65: Routing The Cables

    6 Installation Use compatible residual current circuit breakers (RCCB). Refer to the table below. Important The RCCB for the "inverter" outdoor unit must be compatible with high harmonics. The electrical characteristics of the mains power supply available must correspond to the values given on the data plate. Carefully determine the cables according to the following elements: Minimum cable cross sections, indicated on the figure.

  • Page 66: Connecting The Indoor Unit

    6 Installation Caution The 0-40 V sensor cables should be separated from the 230/400 V circuit cables. Fig.75 Important Cable ties with fir tree mounts are provided. These can be used to group the cables by voltage at the indoor unit output. 6.10.4 Connecting the indoor unit Fig.76...

  • Page 67: Connecting The Outdoor Unit To The Power Supply

    6 Installation 3. Connect the cable to the terminal block as shown in the figure. Press the push-button to allow the wire to be correctly inserted in the connector and locked. Fig.77 1 Live (L) 2 Neutral 3 Earth Important Stripping length: between 10 and 12 mm.

  • Page 68: Connecting The Outdoor Unit

    6 Installation 6.10.6 Connecting the outdoor unit Fig.79 230V 230V 230V 400V 230V 230V 230V 230V 230V 230V 230V 230V 230V 230V 230V 400V 1. Remove the service panel from the outdoor unit. 2. Connect a shielded BUS cable (minimum diameter: 3 x 0.5 mm between the terminal block P/Q/E on the outdoor unit and the terminal block P/Q/E on the indoor unit.

  • Page 69: Connecting A Backup Heater

    6 Installation Protected from direct sunlight. Easy to access. Fig.81 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:...

  • Page 70: Connecting A Backup Boiler

    6 Installation See also Connecting a backup boiler, page 70 Connecting the electric heating element power supply, page 70 Connecting the heating element power supply, page 71 6.10.9 Connecting a backup boiler Caution The connection of a hydraulic backup (backup boiler) or electrical backup (immersion heater) is essential to ensure comfort and the safety of the appliance.

  • Page 71: 6.10.11 Connecting The Heating Element Power Supply

    6 Installation 2. Connect the power supply. It is possible to connect the electric heating element to one of the 3 phases of a three-phase installation, if necessary. L1 Live 1 1,5kW 230V~ L2 Live 2 L3 Live 3 N Neutral Earth Important Stripping length: between 10 and 12 mm.
  • Page 72 6 Installation 2. Feed the heating element power supply cable into the cable duct reserved for the 230/400 V circuit cables. Fig.86 A Cable ties 3. Connect the power supply and change the bridge if necessary. It is possible to connect the heating element to one of the 3 phases of a three-phase installation, if necessary.

  • Page 73: 6.10.12 Connecting The Options

    6 Installation Tab.39 Electric heating element power supply Power supply for the heating Electric heating element output element Maximum output = stage 1 + Minimum output = stage 1 Stage 2 stage 2 Single-phase 3 kW = 3 kW + 0 kW 3 kW 0 kW 6 kW = 3 kW + 3 kW...

  • Page 74: 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.89 1. Download the Baxi START application on Google Play or on the App Store. ® 2. Activate the Bluetooth in the smartphone parameters.

  • Page 75: Commissioning Procedure Without Smartphone

    7 Commissioning Commissioning procedure without smartphone Caution Commissioning must only be performed by a qualified professional. 1. Select Country and language. 2. Configure Date and time. 3. Configure the Enable daylight save function. Fig.90 4. Set the CN1 and CN2 parameters. The values are available on the data plate of the indoor unit.

  • Page 76: Setting The Flow Rate Of The Direct Circuit

    7 Commissioning Tab.40 Outdoor unit 1.5 kW heating ele­ 3-6 kW heating ele­ Backup boiler ment ment AWHP2R 4 MR AWHP2R 6 MR AWHP2R 8 MR AWHP2R 10 MR AWHP2R 12 MR AWHP2R 12 TR AWHP2R 16 MR AWHP2R 16 TR See also Reset the configuration numbers CN1 and CN2, page 91 Setting the flow rate of the direct circuit...

  • Page 77: Final Instructions For Commissioning

    8 Settings Final instructions for commissioning 1. Check that the following installation components are switched on correctly: Circulating pumps Outdoor unit Backup electric heater or backup boiler depending on the type of installation 2. Check the flow rate in the installation. It must be above the minimum threshold.

  • Page 78: Setting The Circuit Function

    8 Settings 1. Follow the access path described below. Access path > Search 2. Enter the Installer access code (0012) if you are prompted to do so. 3. Enter the code for the required parameter or measured value using button. 4.

  • Page 79: Configuring The Cooling Mode

    8 Settings Fig.93 1. Follow the access path described below. MW-6001008-1 Access path > Installer > Installation setup > Zone 1 > Heat curve 2. Set the following parameters. Parameter Description Adjustment required Zone Heating Curve Value of the heating curve gradient Underfloor heating circuit: gradient between 0.4 CP230 and 0.7...

  • Page 80: Configuring The Backup Boiler

    8 Settings 4. To enable the zone concerned to be cooled, configure the Cooling mode parameter (AP028) or Forced cooling mode (AP015). Parameter Description Adjustment required Cooling mode Configuration of the cooling mode Active cooling on AP028 Only enables cooling if summer mode is active, by default when the outdoor temperature is above 22 °C: value modifiable via the Summer Winter parameter (AP073).
  • Page 81 8 Settings Fig.94 Influence of outdoor temperatures C COP: Coefficient of performance and bi-valency. Threshold COP: if the coefficient of performance of the heat pump is higher than the threshold coefficient of performance, the heat pump takes priority. Otherwise only the boiler backup is enabled. The heat pump COP depends on the outdoor temperature and the heating water setpoint temperature.

  • Page 82: Drying Screed With Or Without An Outdoor Unit

    8 Settings 3. Choose energy consumption optimisation. Tab.42 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 83: Configuring A Room Thermostat

    8 Settings 2. Configure the phase 1 screed drying parameters: Parameter Description Adjustment required Screed drying time 1 Set the number of days spent in the first screed Number of screed drying days in phase 1 ZP000 drying step Screed start temp 1 Set the start temperature for the first step of Phase 1 drying start temperature ZP010...

  • Page 84: Configuring A Thermostat With A Heating/Cooling Control Contact

    8 Settings 1. Follow the access path described below. Access path > Installer > Installation setup > Zone 1 > General 2. Configure the R-Bus input for using an on/off thermostat (24 V dry contact) Parameter Description OTH LogicLev contact Configuration of the on/off input contact direction for heating mode.

  • Page 85: Configuring The Anti-Legionella Function

    8 Settings 4. Follow the access path described below. Access path > Installer > Installation setup > Air Src Heat pump > Blocking input 5. Configure the heat pump parameters. Parameter Description Adjustment required BL function BL input function selection (BL1) Heating Cooling AP001 BL1 contact config.

  • Page 86: Configuring A Buffer Tank

    8 Settings 6. Adjust the duration of the anti-legionella programme cycle. Parameter Description Adjustment required DHW anti-leg runtime Duration for maintaining the setpoint temperature. Can be set from 0 Min to 360 DP410 Duration for which the setpoint temperature can be maintained to ensure Legionella bacteria are eliminated.

  • Page 87: Configuring Silent Mode

    8 Settings Tab.46 Improving hot water comfort Parameter Description Adjustment required Max DHW duration Maximum duration of the domestic hot water Increase the maximum authorised duration for DP047 production. domestic hot water production. Longer period of hot water production. Min CH before DHW Minimum heating duration between two periods Reduce the minimum heating duration between DP048...

  • Page 88: Configuring Sources Of Energy

    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, which is higher than level 1...

  • Page 89: Supplying The Heat Pump With Photovoltaic Energy

    8 Settings Number of pulses per Values to be configured for the Elec pulse value (HP033) parameter 1000 The electrical energy measurements are read on the meters CH energy consumed (AC005), DHW energy consumed (AC006) and Cool energy consumed (AC007). The thermal energy from the backup boiler or heating element is factored in to provide the full tally of restored thermal energy.
  • Page 90 8 Settings Tab.49 Operation of the heat pump in a Smart Grid BL1 IN input BL2 IN input Operating Inactive Inactive Normal: the heat pump and the backup electric heater operate normally Active Inactive Off: the heat pump and the electric heating element are switched off Inactive Active Economy: the heat pump voluntarily overheats the system without the...

  • Page 91: Resetting Or Re-Establishing The Parameters

    8 Settings 9. Configure the temperature offsets for the voluntary overheating by configuring the Offset heating - PV (HP091) and Offset DHW - PV (HP092) parameters. Parameter Adjustment required Offset heating - PV Heating setpoint temperature offset when photovoltaic energy is available HP091 Offset DHW - PV Domestic hot water setpoint temperature offset when photovoltaic energy is available...

  • Page 92: Installer > Installation Setup > Air Src Heat Pump

    8 Settings 8.13.1 > Installer > Installation setup > Air Src Heat Pump In the Air Src Heat Pump sub-menu, you will find all parameters related to the behaviour of the heat pump. AP : Appliance Parameters = Appliance parameters HP : Heat pump Parameters = Heat pump parameters PP : Pump Parameters = Pump parameters Tab.50...
  • Page 93 8 Settings Tab.52 > Appoint Parameters Description of the parameters Factory setting EHC–09 Bivalent temperature Above the bivalent temperature, the backup energy source is not 5 °C HP000 allowed to operate Can be set from -10 °C to 20 °C Backup type Type of backup used in the heat pump Backup boiler: Boiler...
  • Page 94 8 Settings Parameters Description of the parameters Factory setting EHC–09 Cool.Setpoint offset Maximum offset applied to the cooling setpoint when a 0-10V 5 °C HP079 humidity sensor is used Can be set from 0 °C to 15 °C Humidity level Relative humidity level over which the offset is added to the cooling HP080 setpoint...
  • Page 95 8 Settings Parameters Description of the parameters Factory setting EHC–09 BL2 function BL2 input function selection Partial blocking AP100 Full blocking Partial blocking User reset locking Backup relieved Generator relieved Gen.&Backup relieved High, Low Tariff Photovoltaic HP Only PV HP And backup Smart Grid ready Heating Cooling Offset heating - PV...

  • Page 96: Installer > Installation Setup > Zone 1 Or Zone 2

    8 Settings Tab.59 > Advanced Parameters Description of the parameters Factory setting EHC–09 Long HP pipe The heat pump refrigerent pipe length is more than 10m HP159 8.13.2 > Installer > Installation setup > Zone 1 or Zone 2 The parameters for the Zone 1 circuit are linked to the EHC-09 PCB and the parameters for the Zone 2 circuit are linked to the SCB-04 PCB.
  • Page 97 8 Settings Parameters Description of the parameters Factory setting Factory setting Zone 1 Zone 2 Zone HCZP Reduced footpoint of the temperature of heat curve of the 15 °C 15 °C Reduced circuit CP220 Can be set from 15 °C to 90 °C Zone Heating Heating curve temperature gradient of the zone Curve...
  • Page 98 8 Settings Parameters Description of the parameters Factory setting Factory setting Zone 1 Zone 2 RevContactOTH Reversed OpenTherm contact in cooling mode for heat cool demand per zone CP690 Control strategy Selection of the control strategy for the zone Automatic Automatic CP780 Automatic : adapts the regulation strategy based on the sen­...

  • Page 99: Installer > Installation Setup > Domestic Hot Water (Domestic Hot Water)

    8 Settings Tab.65 > Advanced Parameters Description of the parameters Factory setting Factory setting Zone 1 Zone 2 Opening Valve The time needed by the valve to be fully opened 60 Sec Time Can be set from 0 Sec to 240 Sec CP330 Zone Power Power setpoint per zone...

  • Page 100: Installer > Installation Setup > Outdoor Temperature

    8 Settings Tab.68 > Backup Parameters Description of the parameters Factory setting EHC–09 Delay time for starting backup Delay time for starting the backup energy source for DHW for DHW Can be set from 0 Min to 120 Min DP090 DHW management ECO mode;...
  • Page 101 8 Settings Tab.71 Parameters Description of the parameters Factory setting Factory setting Zone 1 Zone 2 Outdoor sensor Enable outdoor sensor AF60 AF60 AP056 No outside sensor AF60 QAC34 Summer Winter Outdoor temperature; Upper limit for heating 22 °C 22 °C AP073 Can be set from 10 °C to 30.5 °C in increments of 0.5 °C...

  • Page 102: Installer > Installation Setup > Scb-01

    8 Settings 8.13.5 > Installer > Installation setup > SCB-01 Tab.72 Parameters Description of the parameters Factory setting SCB-01 Status relay func. Status relay function 1 No Action EP018 No Action Alarm Alarm Inverted Generator on Generator off Reserved Reserved Service request Generator on CH Generator on DHW...
  • Page 103 8 Settings Tab.73 > Zone 1 / Zone 2 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...
  • Page 104 8 Settings Signals Description of the signals DHW setpoint Domestic Hot Water temperature setpoint in °C DM029 DHW active Is the appliance currently in domestic hot water production mode? AM001 Tab.76 > 0-10 volt or PWM Signals Description of the signals Power setpoint Power setpoint in % of maximum GM011...

  • Page 105: Installer > Counters

    8 Settings Signals Description of the signals BL1 contact position BL1 contact position HM004 Open Closed BL2 contact position BL2 contact position HM005 Open Closed Compressor Compressor operation HM008 Backup1 First stage of backup operation HM012 HP cooling setpoint Heat pump flow temperature setpoint in cooling mode in °C HM033 Tab.80 >...

  • Page 106: Description Of The Parameters

    8 Settings Meters Description of the meters DHW energy delivered Thermal energy delivered for domestic hot water in kWh AC009 Cool energy deliver. Thermal energy delivered for cooling in kWh AC010 Pump running hours Counter that shows the number of pump running hours AC026 Pump starts Counter that shows the number of pump starts...

  • Page 107: Running The Back-Up In Domestic Hot Water Mode

    8 Settings Fig.98 Time delay curve for starting the t Time (minutes) backup T Outdoor temperature (°C) 1 Delay Min.Outdoor T. (HP047) = 8 minutes 2 Delay Max.Outdoor T (HP048) = 30 minutes T (°C) 3 Min.Outdoor T.backup (HP049) = -10 °C 4 Max.Outdoor T.backup (HP050) = 15 °C In this example of a time delay to starting the backup when Delay StartBackup CH HP030 is set to 0, with the factory-set parameters, if the...

  • Page 108: Operation Of The Switch Between Heating And Production Of Domestic Hot Water

    8 Settings If DHW management (DP051) is set to Comfort (HP+Boiler) the domestic hot water production mode gives priority to comfort by accelerating domestic hot water production by simultaneously using the heat pump and the backup boiler or the electric heating element. In this mode, there is no maximum time for domestic hot water production as the use of the backups helps to ensure domestic hot water comfort more quickly.

  • Page 109: Switching Logic For The Buffer Tank Heating Demand

    8 Settings Phase Description of the phase Operating description Heating only When the Hysteresis DHW (DP120) differential is reached, domestic hot water production is triggered. If there is not enough domestic hot water (e.g. if the domestic hot water does not heat up quickly enough): reduce the trip differential (hysteresis) by modifying the value of the Hysteresis DHW (DP120) parameter.

  • Page 110: Connection And Installation Examples

    9 Connection and installation examples Connection and installation examples Installation with electric heating element, underfloor heating and domestic hot water tank 9.1.1 Hydraulic diagram Fig.101 400V~50Hz 230V~50Hz 230V~50Hz MW-1002226-1 1 TXM connected thermostat 5 1/4" - 5/8" or 3/8" - 5/8" refrigeration connection kit 2 Wiring kit for direct underfloor heating 6 Differential valve 3 Kit comprising heating/DHW reversing valve +...

  • Page 111: Connecting And Configuring The Heat Pump

    9 Connection and installation examples 9.1.2 Connecting and configuring the heat pump Fig.102 400V~50Hz 400V~50Hz 230V~50Hz 230V~50Hz 230V~50Hz 230V~50Hz MW-1002227-1 1 Outdoor temperature sensor 4 Heating/domestic hot water reversal valve 2 Wiring kit for direct underfloor heating 5 Domestic hot water sensor 3 TXM connected thermostat 8 Outdoor unit bus connection 1.
  • Page 112 9 Connection and installation examples 3. Configure the underfloor heating parameters (Zone 1). Parameter Description Adjustment required Zone Function Functionality of the zone Mixing Circuit CP020 Fan Convector Only these 2 settings are used for cooling. Heat curve Zone Heating Curve Value of the heating curve gradient Set it between 0.4 and 0.7 (for an un­...

  • Page 113: Installation With Electric Heating Element, Two Circuits And A Buffer Tank Used As A Low-Loss Header

    9 Connection and installation examples Installation with electric heating element, two circuits and a buffer tank used as a low-loss header 9.2.1 Hydraulic diagram Fig.103 400V~50Hz 230V~50Hz 230V~50Hz MW-1002228-1 1 TXM connected thermostat - radiator circuit 5 Three-way valve circuit kit with circulating pump 2 TXM connected thermostat - underfloor heating 6 Low-loss buffer tank circuit...

  • Page 114: Connecting And Configuring The Heat Pump

    9 Connection and installation examples 9.2.2 Connecting and configuring the heat pump Fig.104 CIRC A CIRC B 400V~50Hz 400V~50Hz 230V~50Hz 230V~50Hz 230V~50Hz 230V~50Hz MW-1002229-1 Laux Naux 1 Outdoor temperature sensor 8 Outdoor unit bus connection 2 Safety thermostat for underfloor heating flow 9 230 V power supply connection between the EHC–...
  • Page 115 9 Connection and installation examples 4. Configure the radiator circuit parameters (Zone 1). Parameter Description Adjustment required Zone Function Functionality of the zone Direct (factory setting) CP020 This setting does not enable cooling. Heat curve Zone Heating Curve Value of the heating curve gradient 1.5 (for a radiator circuit) CP230 Adapt the values of the heating curve...

  • Page 116: Installation With Electric Heating Element, Two Circuits And A Low-Loss Header

    9 Connection and installation examples Installation with electric heating element, two circuits and a low-loss header 9.3.1 Hydraulic diagram Fig.105 400V~50Hz 230V~50Hz 230V~50Hz MW-1002230-1 1 TXM connected thermostat - radiator circuit 5 Low-loss header 2 TXM connected thermostat - underfloor heating 6 1/4"...

  • Page 117: Connecting And Configuring The Heat Pump

    9 Connection and installation examples 9.3.2 Connecting and configuring the heat pump Fig.106 CIRC A CIRC B 400V~50Hz 400V~50Hz 230V~50Hz 230V~50Hz 230V~50Hz 230V~50Hz MW-1002231-1 Laux Naux 1 Outdoor temperature sensor 8 Outdoor unit bus connection 2 Safety thermostat for underfloor heating flow 9 230 V power supply connection between the EHC–...
  • Page 118 9 Connection and installation examples 4. Configure the radiator circuit parameters (Zone 1). Parameter Description Adjustment required Zone Function Functionality of the zone Direct (factory setting) CP020 This setting does not enable cooling. Heat curve Zone Heating Curve Value of the heating 1.5 (for a radiator circuit) CP230 curve gradient.

  • Page 119: Installation With Backup Boiler And One Direct Circuit

    9 Connection and installation examples Installation with backup boiler and one direct circuit 9.4.1 Hydraulic diagram Fig.107 230V~50Hz 230V~50Hz 230V~50Hz MW-1002232-1 1 TXM connected thermostat 4 1/4" - 5/8" or 3/8" - 5/8" refrigeration connection kit - 2 Wiring kit for direct underfloor heating length 10 m 3 Differential valve 7802596 - v05 - 28062023...

  • Page 120: Connecting And Configuring The Heat Pump

    9 Connection and installation examples 9.4.2 Connecting and configuring the heat pump Fig.108 230V~50Hz 230V~50Hz 230V~50Hz 230V~50Hz 230V~50Hz 230V~50Hz MW-1002233-1 1 Outdoor temperature sensor 4 Backup boiler pump 2 Underfloor heating wiring kit - direct circuit 5 ON/OFF contact for the backup boiler 3 TXM connected thermostat 8 Outdoor unit bus connection 1.

  • Page 121: Installation With A Swimming Pool

    9 Connection and installation examples 3. Configure the underfloor heating parameters (Zone 1). Parameter Description Adjustment required Zone Function Functionality of the zone Mixing Circuit CP020 Fan Convector Only these 2 settings are used for cooling. Heat curve Zone Heating Curve Value of the heating curve gradient Set it between 0.4 and 0.7 (for an un­...

  • Page 122: 10 Operation

    10 Operation 2. Configure the parameters for Zone2. Parameter Description Adjustment required Zone Function Functionality of the zone Swimming pool CP020 Zone TSwimmPool setp Setpoint of swimming pool when Zone is configured on Swimming Pool 26 °C CP540 Important Backup operation follows the same logic as heating mode. If necessary, it is possible to block operation of the backups with the BL inputs.

  • Page 123: Personalising The Zones

    10 Operation Fig.111 1. Press the button. 2. Select System settings. 3. Select Display settings. 4. Modify the value of the Child lock parameter: Child lock activated Child lock deactivated MW-6000946-01 10.3 Personalising the zones 10.3.1 Definition of the term "zone" Fig.112 Zone: term given to the different hydraulic circuits.

  • Page 124: Personalising The Activities

    10 Operation 10.4 Personalising the activities 10.4.1 Definition of the term "Activity" Activity: this term is used when programming time ranges. It refers to the client's desired comfort level for different activities during the course of the day. One set point temperature is associated to each activity. The last activity of the day remains valid until the first activity of the following day.

  • Page 125: Room Temperature In A Zone

    10 Operation Fig.118 1. On the home screen, select the icon for the relevant zone. 2. Press the button. MW-6000950-2 Fig.119 3. Select one of the following menus: Set heating temperatures to change the temperature for the activities used for programming the heating mode Set cooling temperatures to change the temperature for the activities used for programming the cooling mode 4.

  • Page 126: Setting A Constant Room Temperature

    10 Operation Fig.120 1. On the home screen, select the icon for the relevant zone. 2. Press the button. MW-6000950-2 Fig.121 3. Select Operating mode. MW-1001915-1 Fig.122 4. Select the desired operating mode. MW-1001934-1 10.5.2 Setting a constant room temperature Manual mode is used to set a constant temperature in a selected zone.

  • Page 127: Activating And Configuring A Timer Programme For Heating

    10 Operation Fig.125 4. Select Temporary temperature change. 5. Set the desired temperature for the zone. 6. Select Confirm to confirm the temperature. MW-1002360-1 10.5.3 Activating and configuring a timer programme for heating A timer programme can be used to vary the room temperature in a living zone depending on activities during the day.

  • Page 128: Activating And Configuring A Timer Programme For Cooling

    10 Operation 7. Carry out the following actions according to your needs: Tab.89 Action Procedure Modify the timer settings for programmed activi­ Select a programmed activity. ties. Press the button. Change the start time and/or the associated activity. Select Confirm to save the modification. Add a new time range.

  • Page 129: Changing The Room Temperature Temporarily

    10 Operation Fig.131 4. Select the day to be modified. 5. Carry out the following actions according to your needs: MW-6000954-1 Tab.90 Action Procedure Modify the timer settings for programmed activi­ Select a programmed activity. ties. Press the button. Change the start time and/or the associated activity. Select Confirm to save the modification.

  • Page 130: Domestic Hot Water Temperature

    10 Operation Fig.133 3. Select Operating mode. MW-1001915-1 Fig.134 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-1001934-1 10.6 Domestic hot water temperature 10.6.1...

  • Page 131: Activating And Configuring A Timer Programme For Domestic Hot Water

    10 Operation 4. Select the desired operating mode: Tab.91 Operating mode Description Programming The domestic hot water is produced according to the defined timer programme. The domestic hot water temperature remains at the comfort temperature perma­ Manual nently The production of domestic hot water is forced to the comfort temperature until the Temporary temperature change defined time The domestic hot water temperature is reduced during an absence period to save...

  • Page 132: Forcing Domestic Hot Water Production (Override)

    10 Operation 5. To change the timer programming, select the programme you wish to Fig.140 change. The programmed activities for Monday are displayed. The last activity of the day remains active until the first activity of the following day. MW-6000972-2 Fig.141 6.

  • Page 133: Modifying The Domestic Hot Water Setpoint Temperatures

    10 Operation Fig.142 1. On the home screen, select the icon for the relevant zone. 2. Press the button. MW-6000957-1 Fig.143 3. Select Operating mode. MW-6000958-1 Fig.144 4. Select Temporary temperature change. 5. Indicate the time when the override will end. 6.

  • Page 134: Managing The Heating, Cooling And Domestic Hot Water Production

    10 Operation Fig.145 1. On the home screen, select the icon for the relevant zone. 2. Press the button. MW-6000957-1 Fig.146 3. Select DHW temperature setting. 4. Change the required set point temperature: DHW comfort setpoint DHW reduced setpoint MW-6000974-1 10.7 Managing the heating, cooling and domestic hot water production 10.7.1...

  • Page 135: Forcing Cooling

    10 Operation 10.7.2 Forcing cooling In the Programming operating mode, the Cooling timer programme is activated automatically when the average outdoor temperature has been greater than 22 °C. If you wish, you can force Cooling mode on regardless of the outdoor temperature. Fig.149 1.

  • Page 136: Shutting Off Domestic Hot Water Production

    10 Operation 10.7.4 Shutting off domestic hot water production If you wish, you can shut off the domestic hot water production whilst continuing to use the heating and cooling functions. Fig.153 1. From the home screen, press the button. MW-6000976-1 Fig.154 2.
  • Page 137 10 Operation Fig.156 1. On the home screen, select the suitcase icon to access the Holiday menu. MW-6000986-1 Fig.157 2. Enter the start and end dates and times for the absence period. 3. Select Confirm to confirm the setting. MW-6000988-1 Activating Holiday mode for a zone If you will not be using a zone within your home for several weeks, you can reduce the room or domestic hot water temperature in this zone to...

  • Page 138: Frost Protection

    10 Operation Fig.160 4. Select Holiday. MW-1001927-1 Fig.161 5. Enter the start and end dates and times for the absence period. 6. Indicate the temperature required throughout the absence period. Important For a domestic hot water zone, the setpoint temperature during an absence period is set automatically to the DHW reduced setpoint parameter.

  • Page 139: Starting And Stopping The Heat Pump

    10 Operation Fig.163 3. Select Energy counter. The energy consumed since the last energy consumption meter reset is displayed: MW-6000994-1 Tab.94 Parameter Description CH energy consumed Energy consumed for central heating DHW energy consumed Energy consumed for domestic hot water Cool energy consumed Energy consumed for cooling CH energy delivered...

  • Page 140: 11 Maintenance

    11 Maintenance 11 Maintenance 11.1 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 of the equipment. To provide an installation which offers the user optimum comfort over time.

  • Page 141: List Of Inspection And Maintenance Operations

    11 Maintenance Subject Details Presence of fire extinguisher If any hot work is to be conducted on the refrigerating equipment or any associated parts, appropriate fire extinguishing equipment shall be available to hand. Have a dry powder or fire extinguisher adjacent to the charging area. No ignition sources Do not smoke on the premises during maintenance operations.

  • Page 142: Check The Hydraulic Pressure

    11 Maintenance Check Operations to be carried out Filters Clean the filters. Flow rate in heating mode Check the flow rate on the various heating circuits. Flow rate in domestic hot water mode Check the flow rate in domestic hot water mode. Target flow rate: 16 l/min Hydraulic pressure Recommended hydraulic pressure 0.15 to 0.2 MPa (1.5 to 2 bar).

  • Page 143: Cleaning The Magnetic Sieve Filters

    11 Maintenance 11.6 Cleaning the magnetic sieve filters See also Final instructions for commissioning, page 77 11.6.1 Flushing the magnetic screen filters (quick annual maintenance) The magnetic filters on the heating circuit returns prevent fouling and clogging of the plate heat exchanger. These must be cleaned every year to ensure that water is able to flow correctly within the installation.

  • Page 144: Draining The Heating Circuit

    11 Maintenance 6. Refit the filter observing the keyway of the plastic part. Fig.167 Caution Risk of breakage: align the notch with the pin. 7. Check that the gasket is correctly positioned before tightening with the key. 8. Re-commission the appliance and check the pressure and the flow rate.

  • Page 145: 12 Troubleshooting

    12 Troubleshooting 1. Remove the front panel by pulling firmly upwards. 2. Tilt the control panel support forwards. Fig.171 3. Remove the metal support for the optional PCBs. MW-1002081-1 Fig.172 4. Remove the battery located on the rear of the control panel by pushing it gently.

  • Page 146: Warning Codes

    12 Troubleshooting Tab.100 Type of code Code format Colour of the display Warning Axx.xx Continuous red Blockage Hxx.xx Continuous red Lockout Exx.xx Flashing red 12.1.2 Warning codes A warning code signals that the optimal operating conditions are not fulfilled. The system continues to operate safely, but there is a risk of shutdown if the situation continues to deteriorate.
  • Page 147 12 Troubleshooting Code Message Description H00.34 TOutside Missing Outside temperature sensor was expected but not detected Wired sensor: 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. Replace the sensor if necessary.
  • Page 148 12 Troubleshooting Code Message Description H02.05 CSU CU mismatch CSU does not match CU type Software change (software number or version parameter inconsistent with the mem­ ory). H02.07 Water Press Error Water Pressure Error active Check the hydraulic pressure in the heating circuit. Check the wiring between the central unit PCB and the pressure sensor.
  • Page 149 12 Troubleshooting Code Message Description H06.07 BL CompLowPressure A low pressure anomaly has stopped the compressor Error code shown on the digital display of the outdoor unit: HP The system's refrigerant level is too low. Add the appropriate quantity. In heating or DHW mode, the outdoor heat exchanger is dirty or clogged. Clean the exchanger.
  • Page 150 12 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: EA 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 151 12 Troubleshooting Code Message Description H06.43 DIP switch The DIP switch on the interface board has a configuration error interface panel = EHC–09 PCB H06.53 Tambiant air minimum The ambient air temperature is below the allowed minimum Error code shown on the digital display of the outdoor unit: E5 The connector of sensor T3 is loose.

  • Page 152: Lockout Codes

    12 Troubleshooting Code Message Description H06.65 HP high temp cooling HP refrigerant outlet temperature is too high in cooling mode Error code shown on the digital display of the outdoor unit: Pd The heat exchanger cover has not been taken off. Remove it. The heat exchanger is dirty or clogged.

  • Page 153: Displaying And Clearing The Error Memory

    12 Troubleshooting Code Message Description E02.13 Blocking Input Blocking Input of the Control Unit from device external environment Input BL open. Check the wiring Check the component connected to the BL contact Check the component connected to the AP001 and AP100 contact E02.24 System flow locking System water flow locking active...

  • Page 154: Resetting The Safety Thermostat

    13 Decommissioning and disposal 1. Follow the access path described below to access this information. Access path > Version information 2. Select the component for which you would like to see the version information. Tab.104 Component Description EHC–09 Main PCB for the heat pump SCB-04 PCB for controlling a second circuit (option) MK2.2...

  • Page 155: Disposal And Recycling

    13 Decommissioning and disposal 13.2 Disposal and recycling Fig.174 Warning Removal and disposal of the heat pump must be carried out by a qualified professional in accordance with prevailing local and national regulations. 1. Switch off the heat pump. MW-3000179-03 2.

  • Page 156: Labelling

    14 Product fiche and package fiche 13.4 Labelling Equipment shall be labelled stating that it has been de-commissioned and emptied of refrigerant. The label shall be dated and signed. 13.5 Recovery equipment When removing refrigerant from a system, either for servicing or decommissioning, it is recommended good practice that all refrigerants are removed safely.
  • Page 157 14 Product fiche and package fiche AWHP2R 4 AWHP2R 6 AWHP2R 8 Seasonal space heating energy efficiency under average climate conditions Water heating energy efficiency under average climate condi­ 135.00 135.00 130.00 tions Sound power level L indoors Ability to off-peak hours functioning Rated heat output, under colder - warmer climate conditions 3 –...

  • Page 158: Product Fiche - Temperature Controller

    14 Product fiche and package fiche Tab.107 Product fiche for heat pump combination heaters AWHP2R 16 MR AWHP2R 16 TR Space heating - Temperature application Medium Medium Water heating - Declared load profile Seasonal space heating energy efficiency class under average climate conditions Water heating energy efficiency class under average climate conditions (Prated or Psup)

  • Page 159: Package Fiche - Combination Heaters (Boilers Or Heat Pumps)

    14 Product fiche and package fiche 14.3 Package fiche - Combination heaters (boilers or heat pumps) Fig.175 Package fiche for combination heaters (boilers or heat pumps) indicating the water heating energy efficiency of the package Water heating energy effi ciency of combination heater ‘I’...

  • Page 160: Package Fiche - Medium-Temperature Heat Pumps

    14 Product fiche and package fiche 14.4 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 161: 15 Appendix

    15 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 162: Refrigerant Installation Pre-Commissioning Checklist For 12-16 Kw Applications

    Category (according to dimension (ND) pressure (bar) Directive 2014/68/EU) Pressurised equipment BDR Thermea France AWHP2R: ⊠ II S.A.S Baxi SpA SYSMGR ALYA WH-A: N/A ⊠ II Connection pipes for indoor/outdoor unit Art. 4.3 ALYA WH-A 7802596 - v05 - 28062023...

  • Page 163: Name And Symbol Of The Zones

    15 Appendix Tab.114 Inspection of the conformity of the installation (according to Directive 2014/68/EU) Checklist Inspected Conformity Observations Check that the pressurised □ Yes □ Yes equipment documentation is □ No □ No available □ Not applicable □ Not applicable Check the conformity of the □...

  • Page 164: Name And Temperature Of The Activities

    15 Appendix 15.4 Name and temperature of the activities Tab.117 Name and temperature of the activities for heating Factory-set name Factory-set tempera­ Activities Name and temperature defined by the customer ture Activity 1 Sleep 16 °C Activity 2 Home 20 °C Activity 3 Away 6 °C...
  • Page 165 15 Appendix 7802596 - v05 - 28062023 ALYA WH-A...
  • Page 166 15 Appendix ALYA WH-A 7802596 - v05 - 28062023...
  • Page 167 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 168 36061 BASSANO DEL GRAPPA (VI) - ITALY Via Trozzetti, 20 Servizio clienti: Tel +39 0424 517800 - Fax +39 0424 38089 www.baxi.it 7802596 - v05 - 28062023 7802596-001-05...

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