POMPANO BEACH, Fla. – Oct. 12, 2009 – Dometic Marine now offers three new models of Cruisair’s TWC Compact tempering units, expanding the product range from 24,000- (2-ton) to 72,000- (6-ton) BTU/hr capacities.
The new model sizes include 48,000- (4-ton), 60,000- (5-ton) and 72,000- (6 ton) BTU/hr units, and occupy the same compact footprint as the lower-capacity TWC 36,000 model.
“The TWC features a compact and enclosed, high-performance design that has proven to be cost effective for boatowners,” said Doug Curtis, director of marketing for Dometic Marine. “These three new models add to the versatility of this line, and allow for larger capacities by multiplexing several units.”
The TWC Compact is a high-performance, reverse-cycle tempering unit for cooling and heating. Each unit includes a chilled water (CW) flow switch, high- and low-refrigerant pressure switches, and inlet and outlet CW temperature sensors. The TWC does not include a CW modulating flow control, which means air handlers with or without flow controls can be used. The unit features a brazed platecoil evaporator and coaxial cupronickel seawater condenser allowing for superior cooling and heating performance.
All TWC chillers come with R410A, the preferred environmentally safe refrigerant used in modern, high-efficiency air conditioning systems. This “green gas” refrigerant fully complies with the environmental mandates that go into effect in 2010, as set forth in the Montreal Protocol. R410A is Dometic’s choice for all product reengineering and new product designs because of its impressive thermodynamic properties.
Two control systems are available for the chillers – the standard Digital Diagnostic Control that provides simple, single-stage operation, and the Tempered Water Logic Control for multiplexed systems. An electrical box mounted on top of the chiller houses the control board as well as starting components, and can be mounted remotely up to 6 feet (1.8 meters) away.