Ideal head pressure using R22 on reverse cycle heating


I am currently designing a system and I wish advise on what would be the ideal head pressure using R22 for heating.

The cooling is is no problem but I wish to set up pressure switches so as to have the best possible head pressure for the system to be most efficient.

The condenser is a bit oversized and has multiple fans on it

The system has TX valves for both cooling and heating, plus a reciever so it has the ability to be able to be a bit flexable.

The system is in a fairly warm part of the country and so icing up will not be a problem.