Product Overview
The Raychem HWAT-T55 thermostat is designed to work with Raychem self-regulating cables. It is capable of monitoring and controlling the temperature for hot water maintenance in small pipe networks or branches up to 50 meters. The thermostat ensures the desired hot water pipe temperature is maintained efficiently.
Key Features
- Monitors and controls temperature using a pipe line sensor.
- DIN-Rail mountable (35 mm).
- Manual ON/OFF functionality.
- Easy-to-read digital display for temperature and alarms.
- Three operation modes: ON, ECO, and OFF.
- Three preset temperatures: 55°C, 50°C, and 45°C, which can be modified.
- Built-in timer function for ECO mode.
- Displays actual pipe temperature.
- Switches off the heating system in case of alarm or sensor failure.
Installation and Operation
Installation and commissioning should be performed by authorized personnel, adhering to local electrical codes. The thermostat connects to a 230 VAC supply. Sensor installation involves positioning the NTC line sensor tip on the hot water pipe. The document details how to set the operating mode (Comfort, Eco, Off) and adjust preset temperatures, including accessing parameter settings for advanced configurations like Eco mode timing and sensor correction.
Troubleshooting
The manual includes a troubleshooting section that addresses common issues such as sensor defects (E01), high pipe temperature (E02), and internal thermostat temperature issues (E04). It provides remedies for each error code, including checking sensor contacts, adjusting temperatures, and verifying cable lengths.
Technical Data
Key technical specifications include a supply voltage of 230 VAC, compatibility with heating cables up to 16 A (resistive load), and a power consumption of 5 VA. The terminal size is 2.5 mm² screwed. The temperature setting range is 40°C - 60°C, with a default of 55°C. The ambient temperature range during operation is 0°C to +40°C.
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