Heat-pump COP: useful condenser duty / compressor work. COP_heat = COP_cool + 1 in an ideal cycle.
Formula
$$ \text{COP}\text{heat} = \frac{Q\text{cond}}{W_\text{comp}} = \text{COP}_\text{cool} + 1 \text{ (ideal)} $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $Q_\text{cond}$ | Heat rejected at condenser | kW | rating plate |
| $W_\text{comp}$ | Compressor work | kW | electrical |
Sources
- ASHRAE Handbook - Refrigeration.