Product News: HVAC

QTC4 Air-Cooled Screw Chillers come with microchannel-type condenser.

Press Release Summary:

March 10, 2017 -

Available in 150-360 tons range, QTC4 Screw Chillers reduce sound levels up to 16 dBA. Meeting ASHRAE 90.1-2013 full load efficiency standards, units support BACnet (MS/TP), Modbus, and N2 communications. QTC4 chillers come with hybrid falling-filling-type evaporator and microchannel-type condenser.

Original Press Release

Quantech™ Extends QTC4 Air-Cooled Variable-Speed Screw Chillers to 360 tons

Press release date: March 6, 2017

Quantech has expanded its line of QTC4 Air-Cooled Variable-Speed-Drive Screw Chillers to a total of 21 models ranging from 150 to 360 tons. With the expanded line, Quantech now covers 90% the air-cooled chiller market with many models in-stock ready to ship within three to five days to enable immediate chiller replacement. The Quantech Quick Ship program significantly shortens lead times, especially for 275-ton and larger screw chillers where eight- to nine-week lead times are common.

The QTC4 line (150-360 tons) employs advanced variable-speed technology to deliver market-leading part load efficiency (IPLV or NPLV) while meeting or exceeding ASHRAE 90.1-2013 full load efficiency standards. The variable-speed drive capability enables 25% to 50% energy savings. It also dramatically cuts sound levels at off-design conditions by up to 16 dBA. An advanced hybrid falling-filling-type evaporator and microchannel-type condenser optimize heat transfer and minimize the refrigerant charge.

To minimize pump energy consumption, QTC4 chillers can be utilized in variable primary flow (VPF) systems which reduce the chiller flow to match the load. QTC4 options include variable-speed-drive (VSD) condenser fans to further enhance part-load efficiency and reduce part-load sound. Native communications capability supports BACnet (MS/TP), Modbus, and N2 with optional support for LON communications.

In addition to QTC4 variable-speed-drive air-cooled screw chillers, the Quantech line includes QTC2 (15-50 tons) and QTC3 (55-200 tons) air-cooled scroll chillers, plus QWC3 (50-200 tons) water-cooled scroll chillers.

For more information or to contact a Quantech manufacturer representative, visit http://go.quantech-hvac.com/QTC4Exp.

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