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Optimizing Ducted Heat Pumps for Residential Electrification: Load Calculations, Equipment Selection, System Airflow and Layout, March 19
Event Description
This three-hour class will deal with design, equipment choice and layout issues. The relevant performance factors are: system capacity, refrigerant charge and system airflow. We will review design, installation and commissioning details for each of these performance factors. These performance factors can be applied to both conditioning and ventilation system ducts. We have designed, built and commissioned both retrofit and new construction projects that exemplify the concepts covered in class. Course content will include design examples, photos, installations, and test results from commissioning.
Learning Objectives -
The objective of this course is that at the conclusion, participants will be able to:
Image - Constant Home Comfort
System Capacity
How much capacity do we need
Should we use a heat pump
Mini-split VS conventional
If you do use gas for heat what system is best
How do we design so our customers can shift to time of use billing without negative consequences
What is a load calculation and what do they tell us
Do we pick the same equipment type regardless of the load
Zoning strategies for high efficiency buildings
System Airflow
System capacity defines duct size
What will fit in a given building
Large ducts lead to losses and complexity issues
Small ducts lead to low airflow and performance issues
Layout strategies for high airflow systems
Refrigerant Charge
Line set building and preparation
Nitrogen pressure testing
Vacuum testing
Charge adjustment – super heat, sub cool, weigh in
Dan Perunko is cofounder of Balance Point Home Performance Company. In 2006, along with Gavin Healy, Dan started a successful company providing full service home performance analysis, retrofits, consultations, and trainings. Dan works on new and existing construction designs and hands on installations of enclosures, mechanical, plumbing, and indoor air quality components based on tested performance outcomes. Dan especially enjoys improving existing homes to provide homeowners with levels of comfort and energy consumption that they have not believed possible. Dan is a professional trainer who designs and delivers full and multi day courses for California’s Utility Companies (energy training centers) and ACI national and regional conferences. Dan brings his experience from construction, design and building analysis, to make his class materials relevant, useful and understandable regardless of the attendees’ level of experience.
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