Educational Facilities


 Mountain Region


Project: SISD Combo School No. 5
Equipment: 1000T Packaged CHW and HW Central Plant and 21 Central Station Air Handling Unit
Sales Office: Commercial El Paso/ AZME
Owner: Socorro Independent School District
Mechanical Engineer: Alegro Engineering
Mechanical Contractor: Funk and Company


The Sigler Commercial Division in El Paso Texas took on the challenge to assist in the design, layout and component selection of a 1000 Ton Packaged Central Plant used to heat and cool the new K-8 Combo School in El Paso.  The owner’s LEED Gold goal underlined the importance of the most efficient, flexible and serviceable Packaged Chiller/Boiler plant available.

Using Carrier’s Foxfire Tri-rotor Variable Speed compressor 23XRV chillers (two; 500 Ton each) in series counter-flow, the team was able to deliver just what the Engineer and Owner were looking for; the most efficient and reliable chiller plant possible!

The bar was set high, operating an entire plant (pumps, chillers, towers, VFDs etc.) at or as close to the ASHRAE 90.1 – 2010 Chiller minimum efficiency requirements of .639kW/Ton.

The team successfully executed the task and achieved the results below.  During witness performance testing of the plant these levels were exceeded by as much as 25% from specified.

Mtn Region Image