Systems Envelope – A10 and A20

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  • Summary
  • Applications

    Automated chiller plant control optimizing variable primary flow water-cooled chiller plants.

    The Systems Envelope A10 and A20 works in a variable primary configuration and keeps the entire plant, including air-cooled chillers and chilled water pumps, running smoothly.

  • Description

    The Armstrong Systems Envelope – A10 and A20 boosts energy efficiencies of new and existing chiller plant installations to leading class levels. It works with all variable primary configurations, keeping the entire plant - including both air-cooled chillers and chilled water pumps - running at optimum performance and occupant comfort. 

  • Configuration

    Integrates with all brands of chillers, pumps, and automation systems. Installs directly with chiller plant equipment. If preferred, the SE-A10 and A20 connects seamlessly with any central building automation system (BAS) maintaining full control of the chilled water plant through the BAS 

  • Performance Range

    Controls up to five chillers and five pumps. No limitations in plant size and cooling capacity 

  • PowerNo limitations in plant cooling capacity

Better temperature stability, better energy performance, better predictability

  • Supports Building Management Systems with performance-mapping, enabling best-efficiency staging using feedforward control to modulate and stage every component
Design Envelope

Lowest installed cost. Lowest operating cost.

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Avoid start-up delays and cost overruns.Simple, short commissioning process delivers transparent plant operations, ensuring optimal system performance from day one.

  • SE-A is a pre-engineered and pre­ programmed solution enabling rapid deployment and reduced on-site installation time

Energy savings of up to 30% on an existing variable- primary flow, variable speed chiller plant. Payback of less than 2 years on a retrofit installations

  • Data-reporting systems validate and right-size future system designs, ensuresing optimal building operation. Prolonged building lifecycle performance and efficiency through cloud-based predictive performance analytics. Optimizes the control of systems fitted with up to three different sizes of chiller.

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