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963db2ae23
Simulated case 6 (P960-0001-001431, dual oil boiler 51% rads + 49% underfloor) worksheet (231) = 356 = (230c) central-heating pump 156 + (230d) oil boiler pump 200. (230c) decomposes per SAP 10.2 Table 4f note c) (PDF p.175): "Where there are two main heating systems include two figures from this table" — Main 1 41 kWh (pump age "2013 or later") + Main 2 115 kWh (pump age unknown). The cascade summed only Main 1's circulation pump, giving (231) = 241. cert_to_inputs now adds the second main's circulation pump, gated on a lodged main_heating_fraction > 0 (a genuine second SPACE-heating main — the same test §9a uses to split space-heating demand). This excludes DHW-only second mains (cert 000565 Main 2 = gas combi via WHC 914, fraction 0); without the gate 000565's worksheet pins regressed +115 kWh. Re-pin: golden 0240 (dual-main oil combi, API-only, no worksheet) gains its Main 2 pump too (pumps_fans 315 → 430). Spec-correct per note c and validated by the case-6 worksheet; SAP cont 72.55 → 72.18 (integer 73 → 72, resid +0 → -1), PE +1.9459 → +2.8092, CO2 +0.1226 → +0.1385. The lodged 73 carries Elmhurst's own residual; the worksheet- backed case 6 is the spec authority for the archetype. Note: the boiler-interlock −5pp per-main determination the prior handover flagged as the priority is already implemented (S0380.141 cylinder-thermostat path + S0380.177 room-thermostat path) — case 6 already produces (206)=79 / (207)=84 exactly, and 0240 is a combi with no cylinder so correctly unpenalised. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> |
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| .. | ||
| addresses | ||
| data_transformation | ||
| epc | ||
| fuel_rates | ||
| geospatial | ||
| property | ||
| property_baseline | ||
| sap10_calculator | ||
| sap10_ml | ||
| tasks | ||
| postcode.py | ||