Baxi HP40/50-4-1PHMB Installation And Service Manual
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Baxi HP40/50-4-1PHMB Installation And Service Manual

Heat pump air/water 'inverter'
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United Kingdom
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Please read & understand all these instructions before commencing installation.
Please leave this manual with the customer for future reference.
Installation and Service Manual
Heat Pump air/water 'inverter'
IMPORTANT
HP40/50-4-1PHMB
HP40/50-5-1PHMB
HP40/50-7-1PHMB
HP40/50-8-1PHMB
HP40/50-11-1PHMB
HP40/50-13-1PHMB
HP40/50-11-3PHMB
HP40/50-13-3PHMB
1

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Summary of Contents for Baxi HP40/50-4-1PHMB

  • Page 1 United Kingdom Installation and Service Manual Heat Pump air/water ‘inverter’ HP40/50-4-1PHMB HP40/50-5-1PHMB HP40/50-7-1PHMB HP40/50-8-1PHMB HP40/50-11-1PHMB HP40/50-13-1PHMB HP40/50-11-3PHMB HP40/50-13-3PHMB IMPORTANT Please read & understand all these instructions before commencing installation. Please leave this manual with the customer for future reference.

  • Page 2: Table Of Contents

    Contents Abbreviations: Tbt1: Buffer tank upper temperature sensor 1 Safety Precautions & Liabilities Tbt2: Buffer tank lower temperature sensor · 1.1 Safety Precautions (for optional) · 1.2 Manufacturer's liability Tsolar: Solar temperature sensor · 1.3 Installer's liability DHW tank water temperature ·...
  • Page 3 HP40/50-4-1PHM 1-phase HP40/50-7-1PHMB 1-phase HP40/50-5-1PHMB 1-phase HP40/50-8-1PHMB 1-phase HP40/50-11-1PHMB 11kW 1-phase HP40/50-13-1PHMB 13kW 1-phase HP40/50-11-3PHMB 11kW 3-phase HP40/50-13-3PHMB 13kW 3-phase Please remove the transportation plate after installation IMPORTANT: On 11 & 13kW models remove the transportation support Failure to do so could damage the compressor.

  • Page 4: Safety Precautions & Liabilities

    1 Safety Precautions & Liabilities WARNING Safety Precautions Servicing shall only be performed as recommended by the equipment manufacturer. Maintenance and repair The precautions listed here are divided into the requiring the assistance of other skilled personnel shall following types. They are important, so be sure to be carried out under the supervision of the person follow them carefully.
  • Page 5 DANGER • Make sure all wiring is secure. Use the specified wires and ensure that terminal connections or wires are • Before touching electrical terminal parts, isolate from protected from water and other dangers. the mains power. When wiring the power supply, form the wires so that •...
  • Page 6 Do not install the unit in the following places: Confirm that the installation area (walls, floors, etc.) • • has no concealed services such as water, electricity, - Where there is mist of mineral oil, oil spray or and gas, before wiring/pipes. vapors.

  • Page 7: Manufacturer's Liability

    Manufacturer's liability Our products are manufactured in compliance with the requirements of various Regulations applicable. They are therefore delivered with the marking and any documents necessary. In the interests of the quality of the products, we strive constantly to improve them. We therefore reserve the right to modify the specifications given in this document.

  • Page 8: Important Information About The Refrigerant

    2 Important information about the refrigerant Factory charged refrigerant volume in the unit Model Refrigerant/kg Tonnes CO equivalent 1.40 0.95 1.40 0.95 1.40 0.95 1.40 0.95 11kW 1.75 1.18 1.75 1.18 13kW This product contains R32, a fluorinated greenhouse The refrigerant inside the unit is flammable and toxic. gas (volume of Global Warming Potential: 675).

  • Page 9: General Introduction

    3 General Introduction Domestic hot water tank (field supply) A domestic hot water tank (with or without booster heater) can be connected to the unit. • These units are used for heating applications and domestic hot water tanks. They can be combined The requirement of the tank is different for different with fan coil units, floor heating applications, low unit and material of heat exchanger.
  • Page 10 Operation range In DHW mode, the water flowing temperature (TW_ out) range in different outdoor temperature (T4) is listed below: Outlet water (Heating mode) +12 ~ +65°C Outlet water (Cooling mode) +5 ~ +25°C Domestic hot water +12 ~ +60°C Ambient temperature -25 ~ +43°C Water pressure...

  • Page 11: Accessories

    4 Accessories 4.1 Accessories supplied with the unit 4.2 Additional accessories available from Baxi Name Shape Quantity Installation Fittings Name Shape Quantity Thermistor for buffer tank (Tbt1) Installation, user and service manual Extension wire fo r Tbt1 (this book) Thermistor for Zone 2 flow temp.

  • Page 12: Before Installation

    5 Before Installation The position of centre of gravity for different units can be seen below. Before Installation Be sure to confirm the model name and the serial number of the unit. They are pasted on the side panel of the unit body. Handling Due to relatively large dimensions and heavy weight, the unit should only be handled using lifting tools with...

  • Page 13: Installation Site

    6 Installation Site - Frequent frost acceleration in heating operation. - Disruption of operation due to rise of high pressure. WARNING - When a strong wind blows continuously on the front There is flammable refrigerant in the unit and it should of the unit, the fan can start rotating very fast until it be installed in a well-ventilated site.

  • Page 14: Selecting A Location In Cold Climates

    • When installing the unit in a place frequently exposed to snow, pay special attention to elevate the foundation as high as possible. 6.1 Selecting a location in cold climates Refer to ‘Handling’ in section 4 Before installation. NOTE When operating the unit in cold climates, be sure to follow the instructions described below.

  • Page 15: Installation Precautions

    7 Installation Precautions 7.1 Dimensions Fig. 10 4/5kW 7/8/11/13kW Model A (mm) B (mm) C (mm) D (mm) E (mm) F (mm) G (mm) 4/5kW 1295 7/8/11/13kW 1385 7.3 Drain hole position 7.2 Installation requirements Drain hole • Check the strength and level of the installation ground so that the unit may not cause any vibrations or noise during its operation.

  • Page 16: Servicing Space Requirements

    7.4 Servicing space requirements 7.4.1 In case of stacked installation 1. In case obstacles exist in front of the outlet side. 2. In case obstacles exist behind the outlet side. >500mm >300mm >200mm >500mm >200mm Fig. 11 Model A (mm) Fig.

  • Page 17: Typical Applications

    8 TYPICAL APPLICATIONS The application examples given below are for illustration only. 8.1 Application 1 ROOM CONTROL BACK-UP HEATER / AHS ASSURE ASHP CYLINDER Fig. 14 Assembly unit Assembly unit Main unit T5: Domestic water tank temperature sensor (Accessory) User interface Expansion vessel (Field supply) SV1: 3-way valve (Field supply) Domestic hot water tank (Field supply)
  • Page 18 Space heating NOTE The ON/OFF signal and operation mode and temperature setting are set on the user interface. P_o keeps running as long as the unit is ON for space Make sure to fit the (SV1) 3-way valve correctly. heating, SV1 keeps OFF. For more details, (see 9.7.6 Connection for other components).
  • Page 19 8.2 Application 2 ROOM THERMOSTAT Control for Space heating or cooling need to be set on the user interface. It can be set in three ways: MODE SET/ONE ZONE/DOUBLE ZONE. The monobloc can be connected to a high voltage room thermostat and a low voltage room thermostat.
  • Page 20 8.2.2 Mode set control Fig. 16 Assembly unit Assembly unit Main unit Drainage valve (Field supply) User interface Magnetic filter Buffer tank (Field supply) Collector/distributor (Field supply) Automatic air purge valve Bypass valve (Field supply) Drainage valve Thermostat transfer board (Optional) P_o: Outside circulation pump (Field supply) SV2: 3-way valve (Field supply) Expansion vessel (Field supply)

  • Page 21: Cascade System

    8.3 Cascade system Zone 1 23.1 23.2 FHL1 FHL2 FHLn Zone 2 11.2 11.1 Power 11.3 Fig. 17 Assembly unit Assembly unit Master unit 11.3 Coil 2, heat exchanger for Solar energy 1.2...n Slave unit Filter (Accessory) User interface Check valve (Field supply) SV1: 3-way valve (Field supply) Shut-off valve (Field supply) Buffer tank (Field supply)
  • Page 22 Domestic water heating TBH (Tank booster heater) Control Only master unit (1.1) can operate in DHW mode. TBH should be set via the dip switches on the main T5S is set on the user interface (2). In DHW mode, board (see 10.1). TBH is only controlled by the master SV1 (3) keeps ON.

  • Page 23: Buffer Tank Volume Requirement

    9 Overview of the unit 8.4 Buffer tank volume requirement 9.1 Disassembling the unit Model Buffer tank (L) Door 1 To access the compressor, electrical parts and 4/5/7/8kW >25 hydraulic compartment. 11/13kW >40 Cascade system >40*n n = number of outdoor units 4/5kW Fig.

  • Page 24: Main Components

    9.2 Main components 9.2.1 Hydraulic module Fig. 20 Fig. 21 4/5kW 7/8/11/13kW Assembly unit Explanation Automatic air purge valve Remaining air in the water circuit will be automatically removed from the water circuit. Provides additional heating capacity when the heating capacity of the Backup heater (optional) heat pump is insufficient due to very low outdoor temperature.

  • Page 25: Electronic Control Box

    9.3 Electronic control box NOTE The picture is for reference only, please refer to the actual product. Inverter Module Control Board (PCB A) Main Control Board Main Control Board of Heat Pump System (PCB B) of Hydraulic Module Fig. 22 4/5kW Inverter Module Control Board (PCB A)
  • Page 26 Inverter Module Control Board (PCB A) Main Control Board Main Control Board of Heat Pump System (PCB B) of Hydraulic Module Fig. 24 11/13kW 1-phase Inverter Module Control Board (PCB A) Main Control Board of Heat Pump System (PCB B) Filter Board (PCB C) (at Back of the Main Control Board PCB B, Only for 3 Phase Unit)
  • Page 27 9.3.1 Main control board of hydraulic module CN24 CN21 CN16 CN28 CN13 CN32 CN15 CN29 CN18 CN25 CN42 DIS1 CN40 CN31 CN41 CN22 CN35 CN36 CN17 1 2 3 4 31 32 8 9 10 CN11 CN30 Fig. 26 Port Code Assembly unit Port...
  • Page 28 9.3.2 1-phase for 4-13kW units PCB A, 4-8kW Inverter module 4-6kw, two capacitors CN501 CN502 CN20 CN19 CN302 CN32 Fig. 27 Port Assembly unit Port Assembly unit Compressor connection CN302 Reserved Compressor connection CN32 Port for communication with PCB B Compressor connection CN502 Input port N for rectifier bridge...
  • Page 29 PCB B, Main control board of heat pump system CN10 CN27 CN11 CN22 CN24 DISP1 CN28 CN17 CN26 CN13 CN55 CN14 CN18 CN29 CN7 CN5 CN6 CN16 CN19 CN21 CN33 CN2 CN30 CN36 CN37 CN38 CN21 Fig. 29 Port Assembly unit Port Assembly unit CN28...
  • Page 30 9.3.3 3-phase for 11-13kW units PCB A, Inverter module CN16 CN22 CN15 CN23 CN17 CN18 CN20 CN19 Fig. 30 Port Assembly unit Port Assembly unit CN20 Output port for +15V CN16 Power Input port L1 CN19 Compressor connection port W Input port P_in for IPM module CN18 Compressor connection port V...
  • Page 31 PCB B, Main control board of heat pump system CN36 CN26 CN24 CN41 CN21 DSIP1 CN18 CN31 CN29 CN10 CN35 CN11 CN28 CN20 SW3 SW4 CN37 CN27 6 7 8 CN22 CN30 CN38 CN53 CN109 Fig. 31 Port Assembly unit Port Assembly unit CN38...
  • Page 32 PCB C, Filter board CN20 CN205 CN206 CN30 CN213 CN214 CN202 CN211 CN200 CN201 CN203 CN212 Fig. 32 PCB C 3-phase 11/13kW Port Assembly unit Port Assembly unit CN201 Power supply L2 Port for communication with PCB B CN200 Power supply L3 CN204 Power filtering L3 CN203...
  • Page 33 9.3.4 Control parts for backup heater (Optional) A26D-30-01 (G) A26D-30-01 (G) 1-phase 4/5kW with backup heater (1-phase 3kW) A26D-30-01 (G) A26D-30-01 (G) A26D-30-01 (G) A26D-30-01 (G) A26D-30-01 (G) 1-phase 7-13kW with backup heater (1-phase 3kW) 1-phase 7-13kW with backup heater (3-phase 3 or 4.5kW) 3-phase 11-13kW with backup heater (1-phase 3kW) 3-phase 11-13kW with backup heater (3-phase 3 or 4.5kW) Fig.

  • Page 34: Water Piping

    9.4 Water piping All piping lengths and distances have been taken into consideration. Requirements The maximum allowed thermistor cable length is 10m. This is the maximum allowable distance between the domestic hot water tank and the unit (only for installations with a domestic hot water tank). The thermistor cable supplied with the domestic hot water tank is 10m in length.
  • Page 35 Before continuing the installation of the unit, check the following: NOTE • The maximum water pressure < 3 bar (0.3 MPa). In most applications this minimum water volume will be satisfactory. The maximum water temperature < 65°C according to • safety device setting.
  • Page 36 9.4.3 Water circuit connection 9.4.4 Water circuit anti-freeze protection Water connections must be made correctly in All internal hydraulic parts are insulated to reduce heat accordance with labels on the outdoor unit, with loss. Insulation must also be added to the external respect to the water inlet and water outlet.

  • Page 37: Filling Water

    9.6 Water piping insulation WARNING The complete water circuit including all piping, must • Glycol can be used to prevent freezing, with a be insulated to prevent condensation during cooling maximum concentration of 30% monopropylene glycol operation and reduction of the heating and cooling in the unit.
  • Page 38 • Make sure no external pressure is applied to the • This unit is equipped with an inverter. Installing a terminal connectors. phase advancing capacitor not only will reduce the power factor improvement effect, but also may cause • When installing the ground fault circuit interrupter abnormal heating of the capacitor due to high- make sure that it is compatible with the inverter frequency waves.
  • Page 39 Assembly unit Assembly unit Main unit P_d:DHW pump(field supply) Solar energy kit (field supply) SV2:3-way valve(field supply) User interface SV1:3-way valve for domestic hot water tank(field supply) High voltage room thermostat (field supply) Booster heater P_s: Solar pump (field supply) Contactor P_o: Outside circulation pump (Field supply) Power supply...
  • Page 40 4/5kW 7-13kW Fig. 41 Assembly unit High voltage wire hole Low voltage wire hole Drainage pipe hole Water outlet Water intlet...
  • Page 41 Field wiring guidelines Most field wiring on the unit has to be connected • on the terminal block inside the switch box. To gain access to the terminal block, remove the switch box service panel. WARNING Switch off all power including the unit power supply and backup heater and domestic hot water tank power supply (if applicable) before removing the switch box service panel.
  • Page 42 Table 9-2 1-phase 4-13kW standard and 3-phase 11-13kW standard Outdoor Unit Power Current Compressor Model Voltage Min. Max. TOCA 220-240 11.50 0.10 0.50 220-240 13.50 0.10 0.50 220-240 14.50 0.17 1.50 220-240 15.50 0.17 1.50 220-240 23.50 0.17 1.50 11kW 13kW 220-240 25.50...
  • Page 43 9.7.5 Remove the switch box cover 1-phase 4-13kW standard and 3-phase 11-13kW standard Model 11kW 13kW 11kW 3-ph 13kW 3-ph Maximum overcurrent protector (MOP) (A) Wiring size (mm Fuse Fuse Unit Power Supply Unit Power Supply 1-Phase 1-Phase Fuse Fuse L1 L2 L3 N L1 L2 L3 N Unit Power Supply...
  • Page 44 Slave unit MENU ON/OFF Master unit BACK UNLOCK (LONG PRESS) Please use shielded wire and the shield layer must be grounded. P Q E H1 H2 CN30 H1 H2 H1 H2 H1 H2 Master unit Slave unit 1 Slave unit 2 Slave unit x Only the last IDU requires adding the...
  • Page 45 When connecting to the power supply terminal, use the circular wiring terminal with the insulation casing (Fig. 46). Circular Wiring Terminal Insulation Tube Power Cord Fig. 46 Use power cord that conforms to the specifications and connect the power cord firmly. To prevent the cord from being pulled out by external force, make sure it is fixed securely.
  • Page 46 9.7.6 Connection for other components 1OFF 2OFF AHS1 AHS2 IBH1 3OFF DFT2 DFT1 CN11 CN30 Fig. 49 Print Connect to Print Connect to Solar energy input signal Wired controller Room thermostat input (high voltage) CN30 Outdoor unit 1OFF SV1 (3-way valve) Internal machine cascade 2OFF...
  • Page 47 For 3-way valve SV1, SV2 and SV3. 10 11 12 25 26 27 28 3 4 5 13 14 15 17 18 19 20 21 22 23 24 29 30 31 32 6 7 8 9 10 10 11 12 25 26 27 28 3 4 5 CN11...
  • Page 48 Procedure. Voltage 220-240VAC • Connect the cable to the appropriate terminals as Maximum running current (A) shown in Fig. 53-55. 0.75 Wiring size ( • Fix the cable reliably. Type 2 Control port signal type For remote shut down. Procedure. •...
  • Page 49 C.1 When unit detects voltage is 230VAC between H and L1, zone 1 turns on. When unit detects voltage is 10 11 12 25 26 27 28 3 4 5 0VAC between H and L1, zone 1 turns off. 13 14 15 17 18 19 20 21 22 23 24 29 30 31 32...
  • Page 50 C.1 When unit detects voltage is 12VDC between HT and COM, zone 1 turns on. When unit detects voltage CN24 CN21 CN28 CN16 is 0VDC between HT and COM, zone1 turns off. CN13 CN32 CN15 CN29 CN18 CN25 C.2 When unit detects voltage is 12VDC between CL CN42 and COM, zone 2 turns on according to climate temp CN40...
  • Page 51 For defrosting signal output. Voltage 220-240VAC Maximum running current (A) 10 11 12 25 26 27 28 3 4 5 0.75 Wiring size ( 13 14 15 16 17 18 19 20 21 22 23 24 29 30 31 32 6 7 8 9 10 CN11 CN30...
  • Page 52 Procedure Connect the cable to the appropriate terminals as • shown in the picture. Fix the cable with cable ties to the cable tie mountings • to ensure stress relief. 10) For Smart Grid (installation only). The unit has smart grid function, there are two ports on PCB to connect for SG and EVU signals as following: CN24 CN21...

  • Page 53: Start-Up & Configuration

    10 Start-up & Configuration The unit should be configured by the installer to match the installation environment (outdoor climate, installed options, etc.) and user requirements. CAUTION It is important that all information in this chapter is read sequentially by the installer and that the system is configured as applicable.

  • Page 54: Initial Start-Up At Low Outdoor Ambient Temperature

    10.2 Initial start-up at low outdoor ambient temperature • Damaged equipment: Check the inside of the unit for damaged components or squeezed pipes. During initial start-up and when water temperature is low, it is important that the water is heated gradually. Refrigerant leak: Check the inside of the unit for •...

  • Page 55: The Circulation Pump

    Q (m /h) 10.4 The circulation pump Available external static pressure (ESP) as a function of water flow rate (Q) The relationships between the head and the water flow rates, the PMW Return and the water flow rates are shown in Figs. 70-71 below. (H = height, Q = water flow rate) Head Max Speed...

  • Page 56: Field Settings

    Failure diagnosis at first installation About FOR SERVICEMAN FOR SERVICEMAN is designed for the installer to set • If nothing is displayed on the user interface, it is the parameters. necessary to check for any of the following abnormalities before diagnosing possible error codes. •...
  • Page 57 10.5.1 DHW MODE SETTING 10.5.2 Cool mode setting DHW = domestic hot water Go to MENU> FOR SERVICEMAN> 2. COOL MODE SETTING. Press OK. Figs. 84-86 will be displayed: Go to MENU> FOR SERVICEMAN> 1. DHW MODE SETTING. Press OK. Figs. 79-83 will be displayed: 2 COOL MODE SETTING 2.1 COOL MODE 2.2 t_T4_FRESH_C...
  • Page 58 10.5.4 Auto mode setting If you set DOUBLE ZONE to YES and set ROOM Go to MENU> FOR SERVICEMAN> 4. AUTO MODE TEMP. to NON, irrespective of the WATER FLOW SETTING. Press OK. Fig. 90 will be displayed. TEMP. setting, Figs 96-97 will be displayed. 4 AUTO.
  • Page 59 10.5.7 Other Heating source 9 SERVICE CALL The OTHER HEATING SOURCE is used to set the PHONE NO. *************** parameters of the backup heater, additional heating MOBILE NO. ****************** sources and solar energy kit. Go to MENU> FOR SERVICEMAN> 7. OTHER CONFIRM ADJUST Fig.
  • Page 60 If YES is selected, Fig. 109-110 will be displayed. When in air purge mode, SV1 will open, SV2 will close. 1 minute later the pump in the unit (PUMPI) will operate for 10 minutes during which the flow switch 11 TEST RUN will not work.
  • Page 61 During HEAT MODE test running, the default target Go to MENU> FOR SERVICEMAN> 12. SPECIAL outlet water temperature is 35°C. The IBH (internal FUNCTION. backup heater) will turn on after the compressor runs for 10 minutes. This can assist initial start-up in cold Before floor heating, if a large amount of water conditions.
  • Page 62 During preheating for floor, all the buttons except OK are invalid. To turn off the preheating for floor, please 12.3 FLOOR DRYING UP press OK. Fig. 123 will be displayed. The unit will operate floor drying up on 09:00 01-02-2023. 12.1 PREHEATING FOR FLOOR Do you want to turn off the preheating for floor function?
  • Page 63 10.5.17 HMI address set 14 POWER INPUT LIMITATION How to set the HMI ADDRESS SET 14.1 POWER LIMITATION Go to MENU> FOR SERVICEMAN> 16. HMI ADDRESS SET 17 HMI ADDRESS SET 17.1 HMI SET MASET 17.2 HMI ADDRESS FOR BMS ADJUST Fig.
  • Page 64 10.5.18 Setting parameters The parameters related to this chapter are shown in the table below. Setting Order No. Code State Default Min. Max. Unit interval DHW MODE Enable or disable the DHW mode: 0=NON, 1=YES DISINFECT Enable or disable the disinfect mode: 0=NON, 1=YES DHW PRIORITY Enable or disable the DHW priority mode: 0=NON, 1=YES DHW PUMP...
  • Page 65 Setting Order No. Code State Default Min. Max. Unit interval HEAT MODE Enable or disable the heating mode t_T4_FRESH_H The refresh time of climate related curves for heating mode Hours T4HMAX The maximum ambient operating temperature for heating mode °C T4HMIN The minimum ambient operating temperature for heating mode °C...
  • Page 66 Setting Order No. Code State Default Min. Max. Unit interval 12.4 t_DRYUP The day for warming up during floor drying up The continue days in high temperature during 12.5 t_HIGHPEAK floor drying up The day of dropping temperature during floor 12.6 t_DRYD drying up...

  • Page 67: Final Checks & Test Run

    11 Test run & Final checks • Do not touch any conductive parts. It is mandatory for the installer to verify the correct operation of unit after installation. Do not rinse the unit. It may cause electric shock or • fire.

  • Page 68: Trouble Shooting

    • Use of glycol (see 9.4.4 “Water circuit anti-freeze protection”) Document the glycol concentration and the pH-value in the system at least once a year. - A PH-value below 8.0 indicates that a significant portion of the inhibitor has been depleted and that more inhibitor needs to be added.

  • Page 69: General Symptons

    13.2 General symptoms Symptom 1: The unit is turned on but the unit is not heating or cooling as expected Possible causes Corrective action The temperature setting Check the parameters. T4HMAX,T4HMIN in heat mode. is not correct. T4CMAX,T4CMIN in cool mode. T4DHWMAX,T4DHWMIN in DHW mode. •...
  • Page 70 Symptom 5: The water pressure relief valve leaks Possible causes Corrective action Check for correct operation of the pressure relief valve by turning the red knob on the valve counter clockwise: Dirt is blocking the water pressure relief valve • outlet.

  • Page 71: Operation Parameter

    Symptom 9: DHW mode heat pump stop work but setpoint not reached, space heating require heat but unit stays in DHW mode Possible causes Corrective action Surface of coil in the tank not large enough. Refer to Symptom 7. Heat pump will stay in DHW mode until “t_DHWHP_MAX” reached or TBH or AHS not available.

  • Page 72: Error Codes

    13.4 Error codes When a safety device is activated, an error code (which does not include external failure) will be displayed on the user interface. A list of all errors and corrective actions can be found in the table below. First, apply the relevant corrective action, then reset the safety device by turning the unit OFF and back In case this procedure for resetting the safety is not...
  • Page 73 Error Malfunction or Protection Failure cause and corrective action Code Check the resistance of the sensor. The Tsolar sensor connector is loose, reconnect it. Solar temp.sensor (Tsolar) fault The Tsolar sensor connector is wet or has water in, remove the water, dry the connector. Add waterproof adhesive.
  • Page 74 Error Malfunction or Protection Failure cause and corrective action Code The signal wires of slave units and master unit are not effectively connected. After checking all signal wires are well connected and making sure there is no strong electricity or strong magnetic interference, power on again. There are two or more outdoor units connected to the wired controller.
  • Page 75 Error Malfunction or Protection Failure cause and corrective action Code Phase loss or neutral wire and live Check the power supply cables are firmly connected, avoid phase loss. wire are connected reversely (only for Check whether the sequence of neutral wire and live wire are connected reversely. three phase unit) The T3 sensor connector is loose.
  • Page 76 Error Malfunction or Protection Failure cause and corrective action Code Low pressure protection in cooling Refer to P0. Pe < 0.6 occurred 3 times in an hour. System is lacking of refrigerant. Charge the refrigerant in right volume. When in heating mode or DHW mode, the outdoor heat exchanger is dirty or blocked on the surface.
  • Page 77 Error Malfunction or Protection Failure cause and corrective action Code After 5 minutes of power-off interval, power on again and observe whether it can be recovered; PED PCB failure If it cannot be restored, replace PED safety plate, power on again and observe whether it can be restored;...

  • Page 78: Final Checks & Test Run

    14 Technical Specifications 14.1 General 1-phase 1-phase 1-phase 3-phase Model 4/5kW 7/8kW 11/13kW 11/13kW Nominal capacity Refer to the Technical Data Dimensions H x W x D 792 × 1295 × 429mm 845 × 1385 × 526mm 845 × 1385 × 526mm 845 ×...

  • Page 79: Information Servicing

    15 Information servicing 8) Checks to the refrigeration equipment Refrigerant components should be changed by an F-Gas qualified engineer using only genuine Baxi 1) Checks to the area parts. At all times the manufacturers maintenance and Prior to beginning work on systems containing service guidelines shall be followed.
  • Page 80 not made to original specification, damage to seals, removed or extinguished. If a leakage of refrigerant is incorrect fitting of glands, etc. found which requires brazing, all of the refrigerant shall be recovered from the system or isolated (by means of •...
  • Page 81 • Extreme care shall be taken not to overfill the 18) Labelling refrigeration system. Equipment shall be labelled stating that it has been de-commissioned and emptied of refrigerant. The label • Prior to recharging the system it shall be pressure shall be dated and signed.
  • Page 82 Storage of packed (unsold) equipment. Protection should be provided such that mechanical damage to the equipment inside. The package will not cause any leak. The maximum number of pieces of equipment permitted to be stored together will be determined by local regulations.
  • Page 83 Annex B: To install the E-heating tape at the drainage outlet (by client) Connect the wires of E-heater tape which works for the drainage outlet pipe to the wire joint XT3. To the heating tape of drainage outlet Fig. 138 4/5kW 7/8kW Fig.
  • Page 84 Annex B: 11/13kW (1-phase) Fig. 140 To the heating tape of drainage outlet 11/13kW (3-phase) NOTE Figs. 138-141 are for reference only, please refer to To the heating tape the actual product. of drainage outlet Fig. 141 The power of the E-heating tape shall not exceed 40W/200mA, supply voltage 230VAC.
  • Page 85 Annex C: Temperature sensor resistance characteristics Table 1: T4, T3, T2, T2B, Th sensor resistance characteristics Temp. (°C) Resistance (kΩ) Temp. (°C) Resistance (kΩ) Temp. (°C) Resistance (kΩ) Temp. (°C) Resistance (kΩ) 144.266 16.079 2.841 0.708 135.601 15.313 2.734 0.686 127.507 14.588 2.632...
  • Page 86 Table 2: Tp sensor resistance characteristics Temp. (°C) Resistance (kΩ) Temp. (°C) Resistance (kΩ) Temp. (°C) Resistance (kΩ) Temp. (°C) Resistance (kΩ) 542.7 68.66 13.59 3.702 511.9 65.62 13.11 3.595 483.0 62.73 12.65 3.492 455.9 59.98 12.21 3.392 430.5 57.37 11.79 3.296 406.7...
  • Page 87 Table 3: T5, TW_out, TW_in, T1 temperature sensor resistance characteristics Temp. (°C) Resistance (kΩ) Temp. (°C) Resistance (kΩ) Temp. (°C) Resistance (kΩ) Temp. (°C) Resistance (kΩ) 867.29 98.227 17.600 4.4381 815.80 93.634 16.943 4.3022 767.68 89.278 16.315 4.1711 722.68 85.146 15.713 4.0446 680.54...
  • Page 88 Benchmark Commissioning & Warranty Validation Service Record for the United Kingdom 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 89 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) MCS installer registration Number (if applicable)
  • Page 90 ADDITIONAL SYSTEM INFORMATON (Tick the appropriate boxes/Measure and Record) Water flow rate setting of the heat pump at commissioning (l/min) Additional heat sources connected: Gas Boiler Oil Boiler Electric Heater Solar Thermal Other: 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 91 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 92 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 93 Notes :...
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