Control unit for air conditioner Dometic Marine Air
Tempered Water Logic Control

The Tempered Water Logic Control (TWLC) is an advanced, microprocessor-based controller that provides precise monitoring and coordination for up to 6 chiller stages. All cooling, heating, and safety functions are controlled, as well as features such as automatic temperature staging, switching of lead unit to equalize run times, and hour meter for each compressor. The LCD display supplies the user with important system information through an easy, menu-driven interface.

In the TWLC system, a dedicated power/logic board connects to each chiller, and the boards are networked together to form an integrated system. This design ensures that a single board or network failure will not shut down the entire system. The power/logic board has LEDs to help with system monitoring and troubleshooting, and a replaceable EPROM for future software upgrades.

*Diagnostic faults include refrigerant high and low pressure, flow switch, low voltage, freeze warning, and high temperature limit. Special software sub-routines reduce nuisance faults

*Automatic control of both seawater and circulation pumps

*The user interface has a 4-button control and a 4-line backlit LCD display

*Power/Logic board is protected against static interference and RF noise, and conformal coated for corrosion resistance

*Connect to an on-board computer or modem for remote monitoring and control

*Single-unit TWLC panels are often used on smaller boats or retrofits.

*Multi-unit panels are custom built for each system with circuit breakers and contactors for up to six chillers, and the circulation and seawater pumps

More specifications...