HydroHeat Supplies Hydronic System



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Melbourne Old Treasury Building

20 January 2010

Melbourne’s Old Treasury Building, built in the mid-19th century, had a boiler upgrade carried out by A.G. Coombs. The new system is comprised of 2 x 150kW Baxi PowerHT boilers controlled by a RVA47 Sequence Controller. The flue manifold system is polypropylene plastic with a stainless steel riser and is coupled into one common flue for both boilers. Each boiler has a shutter kit that prevents flue gasses spilling out where they shouldn’t and the condensate is treated and sent to the sewer via a condensate treatment tank.

Download Design Schematic:

System Design Schematic - 4 Power HT Cascade
Melb Old Treasury 001
Melb Old Treasury 002

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