Technical Support for Air Source Heat Pumps

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General Advice & Videos
Troubleshooting
FAQs
Winter operation
What temperature is too cold for heat pumps?
How do air source heat pumps operate in very cold weather conditions?
How does the defrost cycle work on Grant Aerona³ heat pumps?
Weather compensation
What does SCOP for a heat pump mean?
What is weather compensation?
Is it a good idea to use both weather compensation and setback at the same time?
Accessories
How frequently should the flexible connection hoses be replaced?
Can the remote controller be fitted inside the heat pump?
Can the remote controller be fitted outside next to the heat pump?
Should the heating system pipework be insulated?
Should the external flexible hoses be insulated?
What type of heating system controls are used with Grant heat pumps?
What size power cable is required for the Aerona³ Heat Pump?
What is Grant's low loss header?
Refrigerant
How often should the refrigerant be replaced?
What is R32 refrigerant and what is the benefit?
Servicing
What is involved in servicing an air source heat pump?
General
What qualifications do I need to fit an air source heat pump?
Can a heat pump be installed in a shed or other building?
Should a heat pump only be used on a sealed heating system?
Is a volumiser required for a Grant air source heat pump?
Can a heat pump be connected to an existing hot water cylinder?
Do I need to notify local Building Control that I have installed a heat pump?
What is the life expectancy of an air source heat pump?
Are Grant air source heat pumps MCS approved?
Are Grant heat pumps Keymark approved?
Are Grant Heat Pumps Connect & Notify approved?
Manuals & Technical Info
Installation Manuals & User Guides
Aerona³ Heat Pump Range
Heat Meter Installation Instructions

Use with the Heat Meter for 13kW and 17kW ASHPs and Hybrid

Use with the Heat Meter for 6kW and 10kW ASHPs

For use of controller unit for heat meters HPIDHEATMETER & HPIDHEATMETER2

Wiring Centre Instructions
LLH & External Volumiser Instructions
Grant Aerona Smart Controller
Brochures & Data Sheets
Handover Guide
Associated Documents
Aerona³ Schematics – Remote Controller
System Schematics
Wiring Diagrams
Aerona³ Schematics – Smart Controller
System Schematics
Wiring Diagrams

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