Date: March 21, 2025 Time: 12 pm – 1 pm Location: Virtual PDH: 1.0 PDH Trainer: Robert Barrett What makes CO2 refrigerant attractive? How does CO2 compare to R-454B Temperature Considerations: Lime, Health, Safety Operating Delta-T and Energy Balance Operating Profiles Operating Delta-T & ASHP schematic designs CO2 R-454B Equipment Efficiency: CO2 v R-454B System Efficiency […]
Date: June 6, 2025 Time: 12 pm – 1 pm Location: Virtual PDH: 1.0 Trainer: Robert Barrett This presentation provides an overview of real world DHW data for high-rise multi-family housing in NYC and compares the real world data to ASHRAE predictions. Detailed load provides are presented, review of peak-hour and non-peak hours considerations […]
Date: June 20, 2025 Time: 12 pm – 1 pm Location: Virtual PDH: 1.0 Trainer: Robert Barrett This presentation covers the fundamentals of heat transfer, dissecting each variable. It covers fixture accounting, occupancy assumptions, fixture schedules, DHW percentages and cold-water requirements, fixture units, diversity factors, and high level assumptions. Take-away: Learn to be comfortable with […]
Date: July 18, 2025 Time: 12 pm – 1 pm Location: Virtual PDH: 1.0 Trainer: Chris Abbott -Pumps -System curve -Head overestimation impact -Minimum flow -Expansion tank -Expansion tank types -System pressure -Tank location -Plate and frame heat exchangers -Fouling factor and excess surface area -Balancing -Why balancing -Direct and reverse return system -Impact […]
Date: July 25, 2025 Time: 12 pm – 1 pm Location: Virtual PDH: 1.0 Trainer: Robert Barrett -The combustion processes -Heat loss schematic -Benefit of condensing boiler -Factors influence in condensing boiler -Typical water temperatures application -NYC ASHRAE BIN data -Heating curve analysis -Product selection Who should attend – HVAC engineers 1.0-PDH Time: 1-hour […]
