Heat Pump Balance Point
Balance temperature from heating capacity and heat loss.
Formula and source
Outdoor temperature at which heat-pump heating capacity equals the building heat-loss line. Solve C_design × (T_in − T_bp) = HP_capacity(T_bp) by interpolation across the manufacturer capacity-vs-OAT table.
ACCA Manual J, 8th edition. manufacturer heat-pump capacity tables by name.
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