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Khalim Conn-Kowlessar f77229e4b4 §5 slice 7: (70) pumps_fans_monthly_w — Table 5a 9-row dispatch 
Implements Table 5a row-by-row leaf functions:
  central_heating_pump_w     pump install-date bucket (3/7/10 W)
  liquid_fuel_boiler_pump_w  10 W when oil-fuel pump inside dwelling
  liquid_fuel_warm_air_pump_w  10 W for liquid-fuel warm-air systems
  warm_air_heating_fan_w     SFP × 0.04 × V (heating-season)
  piv_fan_w                  IUF × SFP × 0.12 × V (year-round)
  balanced_mv_no_hr_fan_w    IUF × SFP × 0.06 × V (year-round)
  heat_interface_unit_w      PCDB kWh/day × 1000 / 24 (year-round)

Plus pumps_fans_monthly_w(heating_season_w, year_round_w) which applies
the Table 5a footnote-a seasonal mask (Jun-Sep = 0 W heating-season
contribution per Elmhurst worksheet convention).

PumpDateCategory enum maps from EpcPropertyData.central_heating_pump_age_str
("Pre 2013" / "Post 2013" / "Unknown" / etc.) at the orchestrator layer.

MVHR and MEV systems intentionally have no leaf fn — gains are zero per
Table 5a notes (MVHR effect is in MVHR efficiency; MEV simply omitted).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-20 18:37:14 +00:00
..
src/domain §5 slice 7: (70) pumps_fans_monthly_w — Table 5a 9-row dispatch 2026-05-20 18:37:14 +00:00
pyproject.toml slice 13: to_rows(properties) returns pd.DataFrame 2026-05-16 16:43:28 +00:00
README.md added potential file scaffolding: 2026-05-15 10:56:53 +00:00

README.md

domna-domain

Shared domain types — Property, Properties, BaselinePerformance, Plan, PlanPhase, Scenario, ScenarioPhase, ScenarioSnapshot, Recommendation, OptimisedPackage, EpcPropertyData, etc.

Boundary: types only. No persistence, no IO, no business logic. Other packages and services depend on domna-domain; this package depends on nothing internal.

Domain definitions live in ../../CONTEXT.md. New types added here must match the glossary terms.

Layout

src/domain/
├── __init__.py
├── property.py             # Property, Properties, PropertyIdentity
├── site_notes.py
├── landlord_overrides.py
├── baseline_performance.py # lodged + effective pair (ADR-0004)
├── plan.py                 # Plan, PlanPhase, OptimisedPackage
├── scenario.py             # Scenario, ScenarioPhase, ScenarioSnapshot (ADR-0005)
├── recommendation.py
├── geospatial.py
├── solar.py
├── anomaly_flags.py
└── ml/
    ├── __init__.py
    ├── transform.py        # EpcMlTransform (versioned per §8.3)
    └── schema.py

When datatypes/epc/domain/ folds in, the EPC schema types move under src/domain/epc/.