Saying that it is the largest capacity the HVAC industry currently offers, Seresco has announced expanding its Protocol NP-Series line of indoor swimming pool dehumidifiers to accommodate sizes of 90 to 140-tonne units.

A recent 25% capacity expansion to Seresco’s Ottawa, Ontario-based manufacturing factory helped facilitate an additional production line, the company revealed. It also added that it had previously offered custom-built large units, however, now the 90 to 140-tonne systems are catalogue selections, which offer customers more competitive pricing and shorter production times.

The manufacturer listed the following product features and benefits:

• The Protocol NP-Series units typically come as rooftop package units and the new sizes now offer airflows of up to 65,000-cfms.
• The series is ideal for a large one-piece configuration, because it substitutes hundreds of pounds of vapour compression refrigerants commonly used in traditional natatorium dehumidifiers with propylene glycol, Glycol is up to 95% less expensive than refrigerants and is an environmentally-preferred heat transfer fluid for LEED and other sustainable building projects.
• The refrigerant reduction, which can surpass 800 pounds of refrigerant in the largest units, does not affect performance because Seresco’s proprietary heat rejection design makes the series equally efficient as DX systems on summer design days and five to seven per cent more efficient throughout the rest of the year.
• The series also includes the WebSentry system, the world’s only web browser-based software/hardware application that is onboard all Seresco commercial dehumidifiers and allows 24/7 real-time data transmission and extranet access.