Related Manuals for Grant Aerona HPAW110
Summary of Contents for Grant Aerona HPAW110
- Page 1 Grant Aerona Air Source Heat Pump Air to Water Heat Pump Range Installation & User Instructions Tested to BS EN 14511 Part No. DOC.87 Rev.00 January 2010...
- Page 2 STOP! Before continuing with the installation of your new Aerona Heat pump, please spend a few minutes confirming the suitability of the Heat Pump to your system. Failure to do so may result in poor performance and wasted time. Has a heat loss calculation been carried out?
- Page 3 R407C is a mixture of three refrigerants, each of which boil at different temperatures. R407C has a range or glide of approximately 5ºC. The lubricating oils used in this heat pump are known as Polyolester or POE oils. They are considered to be superior oils, less liable to breakdown however they are more hygroscopic –...
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Page 4: Table Of Contents
Sealed Systems Electrical 8.1 General 8.2 Basic Circuits – Making the Connection 8.3 Controller 8.4 Mains Supply Cable 8.5 Heat Pump Wiring Diagram 8.6 System Control Wiring Diagrams 8.7 Wiring Diagrams 8.8 Bivalent Systems 8.9 Extending the Electrics Domestic Hot Water 9.1 Temperature Control... -
Page 5: Introduction
1 Introduction & General Information 1.1 General Information The Grant Aerona Heat Pump is a low water content – low temperature heat source, designed to be highly efficient when installed and used in line with these installation and user instructions. -
Page 6: Specifications And Controls
Water Connections COP @ Air 7˚C/Water 35˚C Weight (empty) Weight (full) 2.2 Dimensions 1120 Front View Figure 2-1: HPAW65 model 1120 Front View Figure 2-2: HPAW85, HPAW110 & HPAW130 models HPAW65 HPAW85 6.78 8.73 1.62 2.20 7.36 10.0 Single Single... -
Page 7: Main Components
(cover removed) Trace heater Condensor element in base of unit (not shown) Notes: Condensate deflector omitted from below heat pump casing controller BTC controller omitted from control panel for clarity Flow Electrical inlet glands Position of Immersion heater with Auto air vent... -
Page 8: Specifications And Controls
Figure 2-6: Grant HPAW85 Water Flow Temperature 35˚C 50˚C Air Temperature in ˚C Figure 2-7: Grant HPAW110 Figure 2-8: Grant HPAW130 Figure 2-9: Grant HPAW155 All Grant Aerona heat pumps have been independently third party tested to BS EN 14511. The COP data given above is based on 7˚C... -
Page 9: Pump Curves
2.5 Pump Curves Figure 2-10: Pump curve for HPAW65, HPAW85, HPAW110 & HPAW130 15.5kW Pump Curve Figure 2-11: Pump curve for HPAW155 2.6 Heat Pump Operating Sequences Pump Comp Demand (on) Figure 2-12: Normal operating sequence Wilo-Classic Star Flow (m... -
Page 10: Controls
The BTC allows for 2 different design temperatures to be entered, maximising the efficiency of the Grant Aerona heat pump. The details of these settings can be found in Section 11 of this manual. All other controls (programmers,... -
Page 11: Siting The Heat Pump
Always ensure at least 200mm vertical clearance between the surrounding ground level and the underside of the heat pump to allow for adequate air movement. Refer to Figure 3-1 for details. 100mm 200mm min above... -
Page 12: Orientation
South face followed by either South East or South West, then by East or West. Only install on a North face if there is no other alternative. North East South Figure 3-2: Location of air source heat pump... -
Page 13: Hydraulic Diagrams
Grant Aerona Heat Pump Figure 4-1: Monovalent system - with S-Plan type controls 4.2 Extended S-Plan Type - Monovalent Heat Pump Outside wall... -
Page 14: S-Plan Type - Bivalent
The following are examples of suitable systems 4.3 S-Plan Type - Bivalent Heat Pump Grant Aerona Heat Pump Primary Flexible Pump pipe... -
Page 15: Extended S-Plan Type - Bivalent
4.4 Extended S-Plan Type - Bivalent Heat Pump Flow Grant Aerona Heat Pump Isolating valve Primary Flexible Pump pipe Isolating valve Return Figure 4-6: Bivalent system - with boiler manifold and extended S-Plan type controls Internal wiring centre Cylinder Stat... -
Page 16: Buffer Tanks
Figure 4-7: Monovalent system - with Buffer and S-Plan type controls 4.5 Buffers Tanks The use of a buffer with the current Aerona heat pump is not necessary in the majority of installations. However, it is possible to utilise a buffer if the end-user wishes to store hot water when there is no other demand placed on the system. -
Page 17: Extended S-Plan With Buffer - Monovalent
4.7 Extended S-Plan with Buffer - Monovalent Heat Pump Flow Grant Aerona Heat Pump Isolating valve Flexible Primary pipe Pump Isolating valve Return Figure 4-8: Monovalent system - with Buffer and extended S-Plan type controls NOTE The hydraulic diagrams do not show... -
Page 18: System Design Criteria
5 System Design Criteria Unlike a typical condensing oil or gas fired boiler that operates at a flow of 70˚C and a return of 50˚C, a heat pump operates with a flow of between 30˚C and 60˚C. The return temperature will depend on the load of the system at a given point in time. -
Page 19: Calculating Radiator Sizes
82ºC flow and 71ºC return with the connections being flow at the top and return at the opposite bottom corner. Below is a typical radiator conversation factor table* and a worked example of sizing radiators for use with a heat pump ºC Correction Factor 0.050 0.123... -
Page 20: Sealed Systems
7 Sealed Systems The following components are required to use the Grant Aerona heat pump as part of a sealed heating system. Due to the lack of space these components are not located within the heat pump, but have to be fitted external to the unit. -
Page 21: Electrical
8.1 General The Grant Aerona Heat Pump is very simple to install and to wire. The units are designed to meet the need for simplicity – both in installation and in servicing. As a result, the wiring involved is both minimal and simple compared to other heat pumps available. - Page 22 8 Electrical Programmer Figure 8-2: S-Plan type system for connection to Aerona heat pump NOTE Note that both wires from Gr (grey) now terminate on their own at position 8. The wires from O (orange) from each valve now terminate on their own at positions 9 and 10.
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Page 23: Controller
Using the 5m of umbilical cable, connect the controller (right) to the heat pump (left). The controller fits all standard single patresses (surface and flush). Use one of the cable glands at the rear of the heat pump to protect this cable. To extend (if required) simply splice a new section into the middle, ensuring all connections are sound and water proof. -
Page 24: Heat Pump Wiring Diagram
Compressor Heater Compressor 4-way valve Power Supply Terminal 3 Connection points for installer Figure 8-7: Heat pump connection diagram for 3kW electrical element ATC controller S-Plan controls socket connections Figure 8-8: Location of connections in control panel 24 Vac Orange... - Page 25 Compressor Heater Compressor 4-way valve Power Supply Terminal 3 2 1 ATC Controller Socket 3 Connection points for installer Figure 8-9: Heat pump connection diagram for 6kW electrical element Model Start HPAW65 1620 22.09 7.36 HPAW85 2200 30.00 10.00 HPAW110 2610 35.59...
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Page 26: System Control Wiring Diagrams
Figure 8-10: Domestic hot water connection diagram 230V 50Hz Figure 8-11: Central Heating connection diagram 9 10 Room Thermostat 9 10 Room Programmer Thermostat Limit Control Heat pump S-Plan controls connections Limit Control Heat pump S-Plan controls connections Cylinder Thermostat... -
Page 27: Wiring Diagrams
Compressor 230V 50Hz Figure 8-12: Bivalent system connection diagram Return sensor Supply sensor Outdoor sensor Zone Valve Limit Control Cylinder Thermostat Heat Pump Relay 2 in heat pump control Controller Heat pump S-Plan controls HW CH C connections Boiler panel... - Page 28 Circulating Pump Compressor 230V 50Hz Figure 8-13: Monovalent system connection diagram Zone Valve 6 7 8 9 10 Limit Control Cylinder Thermostat Room Heat Pump Controller Return sensor Supply sensor Outdoor sensor Heat pump S-Plan controls HW CH C connections...
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Page 29: Bivalent Systems
IMPORTANT Do not take the Neutral from the heat pump to feed the boiler circuit. This will create an imbalance at the MCB and cause nuisance tripping. Always take the neutral supply from the existing S-Plan wiring centre. -
Page 30: Domestic Hot Water
9.3 Temperature Boost It is possible to use the heat pump to raise the DHW temperature to 60ºC. During the summer, this may be preferable, when the external ambient air temperature is high. - Page 31 Refer to Figures 9-1 and 9-2 for electrical connection details. With the cylinder thermostat set to 45°C, when the heat pump raises the DHW cylinder to this temperature, the cylinder thermostat switches to the ‘satisfied’ position. The resulting...
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Page 32: Filling The System
1. To vent the heat pump – All Grant Aerona heat pumps are fitted with a single automatic air vent on the top of the electric immersion element housing. -
Page 33: Commissioning
When putting the heat pump into use for the first time, watch the refrigerant pressure gauge on the side of the heat pump. The needle will rise over time when the temperature of the refrigerant increases. However, if this happens very quickly (e.g. -
Page 34: Setting The Atc Controller
DHW temperatures, even if they each have different target temperatures. There are 3 main conditions the ATC can be set in: 1. OFF – no signal to the heat pump, irrespective of other heating controls. THE HEAT PUMP WILL NOT OPERATE IN THIS CONDITION. - Page 35 6°C. 2. When ambient air temperature is less than 0°C AND the return water temperature is less than 5°C, the heat pump will start. The Heat pump will stop when return water temperature is above 8°C.
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Page 36: Setting The Btc Controller
This provides a very efficient way to weather compensate the heating system which will add to the heat pump and the system efficiency. NOTE This increase in efficiency has NOT been taken into account in the COP’s... - Page 37 BTC Settings Menu Item Access OUTDR Start OUTDR DSGN BOIL START BOIL DSGN BOIL MAX BOIL MIN MASS DIFF DHW BOIL TARGET ‘pump’ DLY WWSD (Warm Weather Shut Down) Notes: a) Access = 1 is available at all times. To access settings menu with access = 0, remove the front control panel cover then remove the screw at the base of the BTC.
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Page 38: Record Of Atc And Btc Settings
11 Commissioning 11.4 Record of ATC and BTC Settings Please complete the following settings: Parameter Return water temperature to start electrical heater Desired Return water temperature setting Coil temperature point to start defrosting Coil temperature point to stop defrosting Max time for defrosting Restart after power failure Water pump working mode 0 = Cont, 1 = Normal... -
Page 39: Servicing And Maintenance
This basically consists of a visual check of the unit and should be regularly carried out (e.g. annually) to ensure that the heat pump continues to operate in a safe and efficient manner. 12.2 Air Inlet and Outlet The air inlet grille and evaporator must... -
Page 40: Fault Finding
Does BTC show Can this fault code any fault code? Check pressure gauge Is the power at on side of heat pump the component? - see note 5 Has heat pump Is there power to the tripped on high or... -
Page 41: General Notes
S-Plan Controls Connections voltage present. Voltage on these wires will do irreparable damage to the heat pump and will not be covered by the warranty. 3. WWSD (warm weather shut down) happens only under 2 conditions. 1 – when the ambient air temperature is at 24˚C or equal to... - Page 42 If the heat pump goes out on high pressure, it will almost certainly be as a result of an air-lock. An air-lock...
- Page 43 Temperature Resistance Temperature ˚C ˚C 490.813 405.710 336.606 280.279 234.196 196.358 165.180 139.402 118.018 100.221 85.362 72.918 62.465 53.658 Figure 13-3: BTC sensor resistance table Protection/failure Inlet water temperature sensor failure Coil temperature sensor failure Ambient temperature sensor failure Winter anti-freeze protection High pressure Low pressure Flow switch...
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Page 44: 14 Spare Parts
14 Spare Parts List 12 Vac Transformer 24 Vac Transformer Figure 14-1: Heat pump control panel components Part Number Description HPAS10 Power capacitor 50µF HPAS11 Power Capacitor 60µF HPAS12 Power Capacitor 70µF HPAS13 Power capacitor 100µF HPAS14 Fan Capacitor 4µF HPAS15 Fan Capacitor 6µF... -
Page 45: Accessories
15 Accessories Figure 15-1: Sealed system kit 15.1 Sealed System Kits These are required when the Grant Aerona Heat Pump is used as part of sealed heating system – refer to Section 7 for further details. Kit 1 (Grant Ref. HPAW55K12) -
Page 46: Glossary Of Terms
Two heat exchangers are housed within the heat pump, one for the hot side (the condenser which transfers the heat to the heating circuit) and one for the cold side (the evaporator). -
Page 47: Warranty
Provided that the card is completed and returned to Grant UK, the heat pump is installed In full accordance with the installation instructions provided and it is serviced after 12 months operation. - Page 48 GRANT ENGINEERING (UK) LTD Hopton House, Hopton Industrial Estate, Devizes, Wiltshire. SN10 2EU Telephone: 01380 736920 Fax: 01380 736991 Email: info@grantuk.com Website: www.grantuk.com...
- Page 49 To be Completed by the Householder Title Initials Address Town Tel: Home Heat Pump Model System Type: Monovalent If Bivalent System - other heat source(s): Gas Boiler Oil Boiler Heating System (tick all that apply): Radiators only Underfloor only Hot Water Cylinder...
- Page 50 Tel: 01380 736920 Fax: 01380 736991 Email: sales@grantuk.com www.grantuk.com BUSINESS REPLY SERVICE Licence No. SCE15739 Grant Air Source Heat Pump Guarantee Air to Water Heat Pump Range • 2 years parts and labour cover on all electrical and mechanical components •Extended warranty available.
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