Unlock Incremental Efficiencies and Savings.
Capitalize on Respective Strengths of TTAP and Compressor-based Central System, Simultaneously.
The premise is straight-forward. The operating conditions that enable optimal efficiency from HVAC units can vary greatly from unit to unit, and by dominant operating conditions.
Instead of selecting one unit that is generally efficient most of the time, deploy two smaller units that are perfectly right for the dominant workloads.
Consider the following illustration:
In this configuration, a downsized compressor-based central AHU (noted in red above) runs with minimal variation to offset the thermal baseload. This represents optimal efficiency for the AHU. For real-time demand fluctuations that occur frequently, but for which the central AHU is not optimally designed, the TTAP unit operates (noted in blue above) and delivers the necessary heating / cooling within its optimal COP.
Put differently, this approach avoids the historic paradigm of over-provisioning compressor-based units to allow them to cover the extreme conditions, despite the sub-optimal efficiencies and operating conditions at those extremes.
Such an approach is reflected above in the black line at 1200W.
The results?
The best of both worlds. No longer must the central unit be oversized to meet the peak load fluctuations, instead a downsized unit delivers heating and cooling at the non-peak conditions with lower CAPEX and lower ongoing maintenance costs. The BMS system ensures TTAP is operating in the optimum dT range, to empower building owners to achieve optimized building-level COP.
Where is this possible? ​
A better question is where is it NOT possible? ​
​After detailed review the team has identified several cities in the US where such a configuration unlocks most notable benefits. Please click below to see if your geography is a premier location! ​
Curious what this would look like in action?
Such solutions have been deployed in the US and EU to great effect.
At Pierre Charron, the solution has eliminated harmful refrigerants, lowered total cost of ownership, and improved occupant comfort … seamlessly.