Tankless Waters Solution

Tankless Series

Model ETX Light Industrial Tankless

The Model ETX Electric Tankless Water Heater provides high volume tepid water for safety drench systems with flow rates as high as 40 gpm. The heater contains high-powered heating elements that heat water only when there is a demand for tepid water. When tepid water is needed, a built-in flow sensor measures the exact flow rate, and that data, combined with temperature readings at the heater’s inlet and outlet, is processed by the electronic temperature controller. This data is continuously transmitted to the temperature controller, which constantly calculates the precise amount of power (kW) needed to achieve the desired temperature. A zero-crossing firing signal is sent to the fast-acting triacs in order to modulate the heating elements to the precise level needed to meet demand. The Model ETX heater uses only as much power as is needed, while delivering accurate and consistent hot water temperature.

HEAVY DUTY CONSTRUCTION
Constructed with high-grade materials to ensure long operating life
Simple to specify and easy to install, and operate
Factory packaged heater provides trouble-free installation and operation
NEMA 4 construction standard

RELIABILITY
Engineered for your specific application to ensure reliable operation
Wide selection of sizes to meet the needs of even the most demanding applications

HIGH EFFICIENCY
On-demand heating eliminates costly and cumbersome storage tanks
Instantaneous design reduces stand-by heat loss and significantly lowers operating costs compared to traditional storage systems.

Download Light Industrial Tankless ETX Brochure Below:

Light Industrial Tankless ETX

More Model ETX Tech Support Questions…

NEMA 4 CONSTRUCTION STANDARD

ANSI/ISEA Z358.1-2014 STANDARD

98%+ HIGH EFFICIENCY DESIGN

AVAILABLE IN 2, 3, and 6 ELEMENTS

HIGH GRADE MATERIALS FOR LONGEVITY

DIGITAL TEMPERATURE CONTROLS

The TWS Tankless TXA water heater can provide flow rates up to 40GPM with a temperature range of 32–194°F Available up to 162 kW in three phase voltage img

TEMPERATURE CONTROLLER

A sophisticated electronic temperature controller with LED digital display provides the user interface. The temperature controller processes all flow and temperature data and calculates power input to meet demand.

FULL HEATER MODULATION

Each heating element is switched on/off using a fast-acting solid-state TRIAC with zero-crossing over-firing control. This switching action provides full modulation of each heating element, regulating heat input to meet demand. To improve operating efficiency and component longevity, each triac is mounted to a heat sink located on the incoming supply piping so that heat generated by the triac during the switching process is dissipated into the water.

PROPER POWER INTEGRITY

All TWS Tankless water heaters, including all 3 phase models, are engineered to operate as a balanced load and operate at 0.999 Power Factor. All TWS 3 phase models are designed for 3 wire (3 live, 1 ground) and 4 wire power systems and draw equal current across all conductors to maintain the power integrity of the users electrical system. TWS does not recommend the use of heaters that operate as an unbalanced load. All load switching in TWS tankless models is performed as zero cross over, eliminating phase angle firing interference and associated EMI issues.

FULL RESOURCE STAGING

The TWS Tankless control system ensures that usage is equalized across all heating circuits. To achieve this, once the controller has calculated kW required, all circuits are energized proportionally, independently, and then time staggered between circuits. This full resource staging reduces EMI output, increases component longevity, and provides highly accurate and consistent hot water temperatures. For three-phase models, all circuits are fully modulated and synchronized to operate as a balanced load.

BACnet MODULE

The TWS BACnet interface unit implements the BACnet MS/TP protocol. The device comes from the factory ready to be operated. The unit can be reconfigured easily with a USB cable and the BACnet Network Utility program located on the TWS web page. The BACnet includes features such as set temperature, power limiting, power setting, temperature in and out, flow rate, flowmeter error, and leak detections. Note that internet protocol is not supported.

BUILDING MANAGEMENT INTEGRATION

Remote Control: Ability to remotely enable or inhibit the heating operation of the unit using one of the following two methods:

  1. The supplied 24VDC signal is user-configured for either Inhibit Mode or Normal Operation Mode.
  2. The supplied volt-free contact is user-configured for either Inhibit Mode or Normal Operation Mode.

Priority Control: An integrated SPDT potential free dry contact (NO/NC 10A @ 240VAC) energizes when the unit is heating and de-energizes when not heating. This feature is useful when it is desirable to give the water heater priority over another electrical load to ensure that both are not operational at the same time.

Technical Documents

Dimensions & kW Amperage Charts

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