The new Seattle Energy Code does not permit gas or electric resistance as the primary space heating type for commercial and institutional buildings, typically requiring heat pumps instead. Learn how to select from among VRF systems, air source heat pumps, heat recovery chillers, and other types for both rooftop and central plant applications. Each of these comes with its own pros and cons regarding efficiency, cost, and space requirements. Code provisions and solutions for replacing existing HVAC systems will also be discussed.

You will hear the code requirements and multiple engineering solutions described, with advice and examples from experienced subcontractors and equipment suppliers.

Learning Objectives

Attendees will learn to:

  1. Visualize how the various code-compliant commercial heat pump options function
  2. Apply the exceptions for supplementary heat
  3. Select an optimal system type: efficiency, façade penetrations, refrigerant type, and space impacts
  4. Design to accommodate cold weather
  5. Understand options for heat pump installations in existing buildings

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