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name: hvac-domain-knowledge description: Technical expertise in HVAC (Heating, Ventilation, and Air Conditioning) specifically tailored for heat pump installations in Norway.

HVAC & Heat Pump Domain Knowledge (Norway)

This skill provides the domain context required to build and maintain the Digital Befaring system for Bergen Inneklima.

Core Concepts

Heat Pump Types

• Luft-til-luft (Air-to-Air): Most common. Distributes heat via indoor units.
• Luft-til-vann (Air-to-Water): Heats water for underfloor heating or radiators.
• Væske-til-vann (Geothermal/Ground-source): High efficiency, high installation cost.

Efficiency Metrics

• COP (Coefficient of Performance): Instantaneous efficiency (e.g., 4.0 means 1kW electricity = 4kW heat).
• SCOP (Seasonal COP): Average efficiency over a full heating season.
• SEER (Seasonal Energy Efficiency Ratio): Efficiency for cooling.

Technical Specifications (Survey Checklist)

When assisting with "Befaring" (Surveys), always consider:

Installation Environment

Outdoor Considerations

• Vibration: Need for "vibrasjonsdempere" (mounting dampers).
• Drainage: "Varmekabel i dryppanne" (heat cable in tray) for preventing ice buildup.
• Clearance: Minimum distance from corners/ground for optimal airflow.

Norwegian Regulations

F-gass Forordningen

• Only certified technicians can handle refrigerants.
• Logs must be kept for installations and leaks.

Enova Subsidies

• Certain high-efficiency heat pumps (mostly liquid-to-water) qualify for national subsidies.

Terminology (Norwegian/English)

• Innerdel / Innedel: Indoor Unit (IDU)
• Utedel: Outdoor Unit (ODU)
• Kjølemedie: Refrigerant (e.g., R32)
• Varmekabel: Heating cable
• Fundament: Foundation / Mounting base
• Kanaler: Trunking / Conduit for pipes