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Grant Aerona3 HPID12R32 Installation And Servicing Instructions

12kw air to water high efficiency heat pump
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Grant Aerona³ HPID12R32
12kW Air to Water High Efficiency Heat Pump
Installation and Servicing Instructions
UK | DOC 0154 | Rev 1.0 | May 2019

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  • Page 1 Grant Aerona³ HPID12R32 12kW Air to Water High Efficiency Heat Pump Installation and Servicing Instructions UK | DOC 0154 | Rev 1.0 | May 2019...
  • Page 2 However, no responsibility of any kind for any injury, death, loss, damage or delay however caused resulting from the use of this manual can be accepted by Grant Engineering (UK) Limited, the author or others involved in its publication.

  • Page 3: Table Of Contents

    15 Disposal and recycling Solar Thermal Connection of Heating System Controls Connection of Remote Controller 16 Guarantee Grant Interface Relay Box Wiring Diagrams Appendix A - Parameters list 6.10 System Control Wiring Diagrams Appendix B - Wiring Diagrams remote controller...

  • Page 4: Introduction

    Please seek advice devices, buffers, etc. from Grant UK if any of these user, installation and servicing these instructions must be left with the product for future instructions cannot be followed for whatever reason.

  • Page 5: Heat Pump Components

    1.9 Heat Pump components HPID12R32 Air inlet is located in the left or in the back PCB (Main) PCB (Terminal) Wiring lid Terminal block Pressure relief valve Airpurge valve Screw High pressure switch Compressor Pump Air outlet figure 1-1: Main components - HPID12R32 section 1: Introduction Page 5...

  • Page 6: Technical Data

    2 technical Data 2.1 Heat Pump technical Data table 2-1: Technical data model Unit HPID12r32 Heating capacity (BS EN 14511 - air: 7°C / water: 35°C) 13.6 COP (BS EN 14511 - air: 7°C / water: 35°C) 5.25 SCOP (average climate conditions) - 35°C 5.93 Heating capacity (BS EN 14511 - air: 7°C / water: 55°C) 11.4...

  • Page 7: Main Supply Cable

    HPID10R32 75 70 2.2 mains supply cable 2.3 Base tray Heater Always assume maximum possible load when considering The factory fitted electric heater prevents condensate in the base cable sizing. of the heat pump from freezing. When the ambient temperature reaches 2.5°C, the base tray heater turns on and at 5.5°C turns off The cable supplying power from the consumer unit to the heat (ΔT of 3k).

  • Page 8: Remote Controller Dimensions

    2.5 remote controller Dimensions Mounting plate Door closed Door open 6-4.2×7 16.5 (116) Knock out hole figure 2-4: Remote controller dimensions Page 8 section 2: technical Data...

  • Page 9: Installation Information

    • If yes, what is the capacity of the buffer? • • The Grant Aerona³ heat pump should only be installed by a Has cavity wall insulation been installed? • competent person. Has loft insulation of 270mm been installed? •...

  • Page 10: Regulations

    3.3 regulations 3.4.2 noise level Installation of a Grant Aerona³ heat pump must be in accordance All heat pumps make a noise. Discuss the potential nuisance factor with the following recommendations: with the end-user when considering the final position of the heat •...

  • Page 11: Installing The Heat Pump

    Therefore, protect the heat exchanger using a the top of the concrete base must be either level with, or magnetic filter such as a Grant Mag-One. above, the surrounding ground level. After system assembly flush and clean the whole system, paying particular attention to the state of the filter.

  • Page 12: Volumiser Tanks

    This basically requires that all ASHPs must be fitted with one (or more) electricity meters to record and display the electricity used When a Grant Aerona³ HPID12R32 (12kW) heat pump is used with any model of Grant Heat Pump hot water cylinder, either a single • The ASHP or twin coil unit, a simple bypass MUST be fitted between the •...

  • Page 13: Hydraulic Diagram

    It is the responsibility of the system designer, not Grant UK, to determine the necessary components for and configuration of the particular system being designed including any additional equipment and safety devices to ensure compliance with building and safety code requirements.

  • Page 14: Before You Commission

    The level of frost protection depends on the percentage concentration used. Grant recommends using a suitable thermal fluid to give a MINIMUM level of frost protection of -9°C, and down to lower temperatures than this where local conditions are more severe.

  • Page 15: Completion

    3.13 Installation checklist Then, access the Service level: location and positioning Use the Up or Down q buttons to change these first two digits • The vibration damping feet/shoes are fitted (if supplied) to 99 and then press the + button o. •...

  • Page 16: Sealed Systems

    DRAWING No: SCALE: DRAWN BY: SCALED TO FIT SIMON VEITCH All Grant Aerona³ heat pumps must be used with sealed systems ASHP with volumiser table 4-2: Sealed System heating components key REVISION: DATE: complying with the requirements of BS EN 12828, BS EN 12831...

  • Page 17: Filling The Sealed System

    Pressure Gauge Auto air vent The pressure gauge must have an operating range of 0 to 4 bar. It must be located in an accessible place next to the filling loop for the system. Plug safety Valve The safety valve (provided with the heat pump) is set to operate at 3 bar.

  • Page 18: Domestic Hot Water

    The time limit for DHW can be set using parameter 3121. The correct Grant UK heat pump cylinder must be selected to match the default setting is 60 minutes but you may want to increase or heat pump output.

  • Page 19: Legionella

    For protection against Legionella the temperature can be mounted next to the cylinder. Thus the immersion element can be periodically raised to 60°C using the Grant Automatic DHW Boost programmed to operate for the required period on either a daily or Kit 2, available from Grant UK (product code: HPDHWBK2).
  • Page 20 5.4.2 setting to override the timeswitch To set the timeswitch use the following procedure: If timeswitch is ON - press the ‘override’ button to set timeswitch to OFF. to set the time and day: If timeswitch is OFF – press the ‘override’ button to set timeswitch Press and hold down the ‘clock’...
  • Page 21 TIMER OFF ON LCD display Day button Hours adjust button Timer Timer button Minutes adjust button Clock button Override button figure 5-3: Boost kit timeswitch ! nOtE ! Earth connections have been excluded for clarity. Ensure all earth connections are made prior to energising.

  • Page 22: Electrical

    6 Electrical 6.1 Wiring centre ! WaRninG ! Electric shock may cause serious personal injury or death. All electrical work must be undertaken by a competent person. failure to observe this legislation could result in an unsafe installation and will invalidate all guarantees. All electrical connections made on-site are solely the responsibility of the installer.

  • Page 23: Terminal Pcb Input/Output

    6.2 terminal PcB Input/output serial connections terminal function Analogue Input Digital Input Wire length is 1 - 2 - 3 Remote controller 1=S1, 2=S2, 3=GND maximum 100m with 1mm² shielded cables Analogue/Digital InPUts table 6-2: Terminal PCB input/outputs terminal function Analogue Input Digital Input 19 - 18...
  • Page 24 Consumer unit Lockable isolator figure 6-4: Heat pump, isolator and consumer unit ! nOtE ! cable and circuit breakers should be to En standards. 10 mm 30 mm table 6-5: Power supply cable and breaker capacity Stripped wire :10mm Power supply cable (mm²) Breaker model capacity...

  • Page 25: Tightening Torques

    Section 7. 6.8 Grant Interface relay Box The Grant EP002 heat pump interface box (supplied with the heat pump) is designed to provide the volt free switching required by the Aerona³, using the heating and hot water switched live outputs from the heating system wiring centre.

  • Page 26: System Control Wiring Diagrams

    ! nOtE ! Hot water Heating 18 and 21 Common this volt free remote contact is provided by the Grant EP002 Interface relay box. refer to sections 6.8 and 6.10. ASHP Terminals Common (Red) Hot Water (Yellow) Link Heating (Blue)
  • Page 27 ! nOtE ! terminals Hot water Heating this volt free remote contact is provided by the Grant EP002 18 and 21 Common Interface relay box. refer to sections 6.8 and 6.10. ASHP Terminals...
  • Page 28 ! nOtE ! Hot water Heating 18 and 21 Common this volt free remote contact is provided by the Grant EP002 Interface relay box. refer to sections 6.8 and 6.10. ASHP Terminals Common (Red) Hot Water (Yellow) Link Heating (Blue)
  • Page 29 ! nOtE ! terminals Hot water Heating this volt free remote contact is provided by the Grant EP002 18 and 21 Common Interface relay box. refer to sections 6.8 and 6.10. ASHP Terminals...

  • Page 30: Remote Controller

    7 remote controller 7.1 remote controller Remote controller The remote controller is used to: • switch the heat pump on and off Mounting plate • display room temperature • display outdoor temperature • display day/time (refer to Section 9.2 for setting the day and time) •...

  • Page 31: Connecting The Remote Controller

    7.4 connecting the remote controller to the Heat Pump Isolate the mains power supply for the heat pump from the power source. Do not connect the remote controller cable with the power on. Remove the wiring cover. Connect the remote controller cable to terminals 1 and 2 on the Terminal PCB.

  • Page 32: Buttons

    7.5 Buttons Door open figure 7-8: Remote controller (buttons) table 7-9: Remote controller (buttons) Button name Description Push and hold the button for 3 seconds to turn ON and turn OFF the heat pump. ON/OFF The green LED on the ON/OFF button is lit when the heat pump is ON. The red LED on the ON/OFF button blinks when an error alarm on the heat pump occurs.

  • Page 33: Display Panel

    7.6 Display Panel For guidance on the operation and setting of the remote controller, refer to Section 9 (Commissioning). table 7-11: Back light display Back light display Door of remote controller open Door of remote controller closed Door of remote controller open but no operation of buttons for 60 seconds To adjust the back light operation, refer to Section 9.8.

  • Page 34: Operation

    8 operation 8.1 Heat Pump operation compressor off→on control When the Outgoing water temperature reaches the set point and The heat pump control is based on: after the compressor is turned OFF, or when the conditions below Outgoing water temperature (measured by outgoing water are met, the compressor shall be turned ON.
  • Page 35 Based on Water temperature Heating mode Heat pump Maximum Compressor (Hz) minimum set temp. + 1 Water set temp. (°C) set temp. - 1 set temp. - Hysteresis Comp. OFF → ON Comp. OFF Water temperature is stable Heating ON set point + 1°C ×...

  • Page 36: Weather Compensation

    8.2 Weather compensation 8.2.3 fixed set Point 8.2.1 Water temperature control Point The heat pump is supplied with parameter 2100 set to a default The water temperature control point is based on a variable set point setting of 1 (Climatic curve operation). calculated automatically using climatic (weather compensation) For the heat pump to operate based on a fixed outgoing water set curves as described below.

  • Page 37: Water Pump Management

    8.3 Water Pump management the compressor stops, the pump will continue running for a time set by parameter, after which it will be switched OFF and will repeat the 8.3.1 main water pump detect cycles. Fundamentally, the ON/OFF of the main water pump links to ON/ OFF of the compressor, but the setting ON/OFF of the pump during The interval between one detect cycle and the next is set by a compressor OFF states, due to reaching the room set point shall be...
  • Page 38 8.3.5 Unblock pump function When the heat pump is stopped for more than 48 hours (parameter 4211), the water pump turns ON for 5 seconds (parameter 4212) to prevent seizing up and increases the life time of the pump. In the case of the main pump and the additional pump, the down time after the previous operation stop is counted individually.
  • Page 39 ! CaUtiOn ! ! nOtE ! the water flow rate must be sufficient to achieve an 8K In reference to option 3 above (and parameter 4220 in table difference between the flow and return water temperatures. 8-13), ‘off’ mode means there is a power supply to the heat pump but there is no heating or hot water demand.

  • Page 40: Frost Protection

    8.4 frost Protection 8.4.3 frost Protection based on room Air temperature Frost protection can be activated when the heat pump is in OFF This frost protection function is always active, even when the heat mode. pump is not operating (but the mains supply is switched on). This is based on either: The water pump is activated if the room air temperature (measured by the heat pump remote controller) is less than the start...
  • Page 41 table 8-17: Frost protection parameters Parameter Display and input value level function description remarks Group code Default Min. max. Unit Start temperature of frost protection on room air temperature 14.0 40.0 0.5°C Hysteresis of room air temperature of frost protection 0.5°C Start temperature of Frost protection on Outdoor air 10.0...

  • Page 42: On/Off Dhw Production Remote Contact

    DHW on/off remote contact to start heat pump for DHW. ! nOtE ! this volt free remote contact is provided by the Grant EP002 Interface relay box. refer to sections 6.8 and 6.10. table 8-22: DHW ON/OFF contact parameters...

  • Page 43: On/Off Heating Remote Contact

    ! nOtE ! the frost protection is active even when the heat pump is this volt free remote contact is provided by the Grant EP002 switched off from the on/off (heating) remote contact. Interface relay box. refer to sections 6.8 and 6.10.

  • Page 44: Night Mode

    8.7 night mode If there is a need to reduce the electricity consumption or noise produced by the compressor, e.g. in night-time operation, it is possible to activate the night mode function using an external contact, e.g. a timeswitch (with volt free contacts) connected between terminals 28-29 on the PCB terminal.

  • Page 45: Low Tariff

    8.8 low tariff The purpose of this function is to heat any thermal stores and DHW cylinders at a time when electricity rates are inexpensive. This can be achieved by using an external contact, e.g. a timeswitch (with volt free contacts) connected between terminals 30-31 on the PCB terminal.

  • Page 46: Commissioning

    9 commissioning 9.1 system setup The numbers in Figure 9-1 will be used for the system setup in this section. Door open figure 9-1: Remote controller buttons 9.1.1 turning the Heat Pump on and off Press ON/OFF switch for three seconds to turn the heat pump on or off.

  • Page 47: Access For Parameter Settings

    9.3 Access for Parameter settings number will blink to allow setting of another parameter, if required. The parameters are accessed and set using the remote controller. 10. To return to normal operation, press and hold the Menu l and There are two levels of access for parameter settings. the –...

  • Page 48: Parameters Input/Output

    9.7 Parameters Input/output The following parameter settings must be checked on commission- ing. table 9-2: Parameters input/output Parameter Display and input value level function description remarks Group code Default Min. max. Unit Terminal 19-18 : DHW remote contact 0=disable (Remote controller only) 1=enable ON/OFF by Terminal 20-21 : ON/OFF remote contact (CH)

  • Page 49: Weather Compensation

    9.9 Weather compensation Pump SW. During commissioning, the four climatic curve parameters MUST be checked and the default values adjusted to suit the design parameters for the system in question. Refer to Section 8.2.2 for details. Warm Weather operation If, during commissioning, the ambient air temperature is higher than the air temperature setting (te2) - parameter 2105 for the climatic curve, the weather compensation function will not Display...

  • Page 50: Servicing

    10.2 Air Inlet and outlet 10.1 General The air inlet grille and evaporator must be checked and leaves or Grant Aerona³ Heat Pumps require only the minimum of routine servicing and maintenance. any other debris removed from the space between the grille and the evaporator fins.

  • Page 51: Monitor Display Function

    10.7 monitor Display function The heat pump operating conditions, as listed in Table 10-3, can be displayed and checked on either the remote controller or Terminal PCB. Door open figure 10-1: Remote controller buttons Display on remote controller Pump SW. Press Return n button for three seconds to enter monitor Terminal PCB mode and display the user level value of parameter group 01.

  • Page 52: Fault Finding

    11 fault finding 11.1 Error code Display In the event that a fault is detected, a red LED on the ON/OFF switch of the remote controller will flash and a warning icon and error code will be displayed on LCD screen and also on the Terminal PCB display.

  • Page 53: Error Codes

    11.4 Error codes Error figure/ Error Error method of check troubleshooting code table reset Power supply Check the power supply Confirm the power supply Fuse CF1 Check the electric continuity of Fuse If CF1 is blown, Main PCB should be HPID12R32: CF1 by tester replaced...
  • Page 54 Error figure/ Error Error method of check troubleshooting code table reset Ensure the installation position to avoid blockage of air inlet & outlet Unreasonable Check the place of installation operation under/ (blockage of air inlet & outlet ) If excess gas is observed, collect all overload Check the excess gas refrigerant once, then recharge with...
  • Page 55 Error figure/ Error Error method of check troubleshooting code table reset Turn off the power supply, wait for about 3 minutes, then power up again If the same error code appears, Power Main PCB error Main PCB Main PCB should be replaced Check loose cable connections and contacts of reactor Outgoing water...

  • Page 56: Table Of Controller Pcb And Terminal Pcb Alarms

    11.5 table of controller PcB and terminal PcB Alarms Error figure/ Error Error method of check troubleshooting code table reset PCB(Controller) PCB(Controller) and PCB(EEPROM) Power EEPROM error should be replaced PCB(EEPROM) Sensor, DHW temperature If the sensor is faulty, it should be Figure temperature Check the resistance by tester...

  • Page 57: Error Codes And Pcb Alarm Figures And Tables

    11.6 Error codes and PcB Alarm figures and tables HPID12R32 Fuse CF1 (250V T30A) Main 0Ω Fuse CF3 0Ω (250V 3A) figure 11-3: Continuity of current Fuse on the Main PCB HPID12R32 LOWER: Fuse CF6 0Ω UPPER: LOWER Fan motor Fuse CF7 Measure voltage between the connector pins of connector (250V T3.15A)
  • Page 58 Pump (HPID12R32) Measure voltage between the connector pins of connector Connector shall be checked during heating operation. Measure voltage as follows without taking off the connector Between white and black Main PCB is normal Between brown and black Between red and black ,approx.
  • Page 59 temperature (°c) resistance (kΩ) temperature (°c) resistance (kΩ) table 11-14: Sensor, temperature flow and return circulating water (heat pump) temperature (°c) resistance (kΩ) table 11-11: Sensor, temperature outdoor (heat pump) temperature (°c) resistance (kΩ) table 11-12: Sensor, temperature discharge (heat pump) temperature (°c) resistance (kΩ) table 11-15: Sensor, temperature outdoor (Terminal PCB)

  • Page 60: Spare Parts

    12 spare Parts 12.1 Exploded Diagram - HPID12r32 Page 60 section 12: spare Parts...

  • Page 61: Spare Parts List - Hpid12R32

    12.2 spare Parts list - HPID12r32 Item Description Product code Item Description Product code Front panel assembly (left) HPID885255 O-ring (P14) HPID910164 Outlet grille HPID938106 O-ring (P16) HPID807213 Front panel assembly (right) HPID887304 O-ring (P22) HPID866473 Top panel assembly HPID884552 Sound proof material 1 HPID887233 Back panel assembly (right)

  • Page 62: Ec Declaration Of Conformity

    The Manufacturer declares that the following Products conform to the requirements of EU Directives, Regulations and Harmonized Standards as below stated. The Technical Construction Files are retained at the following Manufacturer’s location. Product: Air to Water Heat Pump model: Grant Aerona³ HPID12R32 low Voltage Directive: 2014/35/EU machinery Directive: 2006/42/EC EN 60335-2-40:...

  • Page 63: Health And Safety Information

    15 Disposal and recycling General recycling Grant UK air source heat pumps incorporate components In order for the heat pump to be recycled or disposed of it must be manufactured from a variety of different materials. However, most taken to a suitably licensed waste facility. You will need to contact a of these materials cannot be recycled as they are contaminated by qualified refrigeration engineer to do this for you.

  • Page 64: Guarantee

    If the air source heat pump has been installed for over two to tampering, system water contamination, misuse, trapped air years. or the failure of any external components not supplied by Grant • If the air source heat pump has not been installed, Engineering (UK) Limited, e.g.
  • Page 65 Your statutory rights entitle you to a one year guarantee period • only. Use of spare parts not authorised by Grant Engineering (UK) Limited. The UK mainland consists of England, Scotland and Wales • only. Please note that for the purposes of this definition,...

  • Page 66: Appendix A Parameters List

    Appendix A Parameters list Backlight display paramters Parameter Display and input value level function description remarks Group code Default Min. max. Unit Back light display at door open 0=OFF 1=ON Time to turn off the back light display 10 sec Time to back to normal display screen 10 sec Water temperature set points...
  • Page 67 Type of operation of additional water pump 0=disable 1=depending on main water pump setting 2=depending on main water pump setting but always OFF when the DHW mode is activated 3=always ON, apart from if any alarms are activated or if the heat pump is in OFF mode frost protection Parameter...

  • Page 68: Appendix B Wiring Diagrams

    Appendix B Wiring Diagrams Page 68 Appendix B - Wiring Diagrams...

  • Page 69: Appendix C - Commissioning Parameters Record

    Appendix c commissioning - Parameters record This section enables the installer/commissioning engineer to record details of any parameters that may have changed during commissioning. Refer to Appendix A for full details of parameter settings. Parameter Value set on level function description Default commissioning Group...
  • Page 70 DHW storage frost protection 0=disable 1=enable Terminal 11-12: thermal store temperature probe 0=disable 1=enable Terminal 19-18 : DHW remote contact 0=disable (Remote controller only) 1=enable Terminal 20-21 : ON/OFF remote contact (CH) Alarm input 0=disable 1=ON/OFF remote contact Terminal 28-29 : Night mode 0=disable 1=enable Terminal 30-31 : Low tariff...
  • Page 71 notEs notes Page 71...
  • Page 72 Grant EnGinEErinG (UK) LimitEd Hopton House, Hopton Industrial Estate, Devizes, Wiltshire, SN10 2EU Tel: +44 (0)1380 736920 Fax: +44 (0)1380 736991 Email: info@grantuk.com www.grantuk.com...

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