Heatpump discharging on condensor

[pumpmann]

Hi
Is it good practice to discharge cold air of hot water heatpump onto air cooled condensor air Suction for " heat recovery"?
Are you aware of literature on the subject?

 

[EnergyProfessional]

you could jsut use a heat recovery chiller...or oemthign liek that.

if you do that outside, msot of the cold air will disspate before it hits the condneser. If you duct it, you need to make sure both run at the same time or that the condenser gets fresh air otherwise. When ducting, the added ai pressure drop and more fan energy may offset any savings.

Not sure hwat isze of system, but whne you simultaneous heat and cool there are ready-made solutions.

 

[NegativeZero]

and what do you do when the heat pump is in cool mode? I don't think there is any written material on this design build setup.

 

[EnergyProfessional]

obviously you will need some sort of heat rejection. 99.999999% of the time heating and cooling load won't match.