nVent RAYCHEM HWAT-ECO V5 Control Unit


The nVent RAYCHEM HWAT-ECO V5 control unit is used for energy-efficient temperature maintenance of hot water in a building’s single pipe network. It is used to optimize the operation of nVent RAYCHEM HWAT-R/-M/-L self-regulating heating cables .

Key benefits:

  • Energy savings: additional savings up to 21%
    • 7 specific building type programmes with typical ‘on’ and ‘off’ modes for these buildings
    • Integrated clock function to define ‘on’ and ‘off’ times
  • Integrated Standard/Economy and "Tap time" set-back timer functions to lower power output (e.g. during the night) or switch-off (e.g. during periods of high water usage like mornings)
  • Safety
    • Monitors boiler storage temperature (to assure that the heating cable is used to maintain (not heat-up) the water temperature) and pipe temperature (to ensure minimum water temperature and assure hygienic requirements)
    • Low and high boiler temperature alarm to warn for boiler defects or incorrect settings
    • Heat-up cycle mode up to 70°C is possible e.g. for legionella prevention measures
  • Easy to connect and to operate
    • 5" colour touch screen
    • Pre-set up in power-off mode by external power bank/charger via USB connection
    • Terminal with 6mm² spring clamps
    • In wall or panel mounted
    • Customized panel configurations on demand with built-in HWAT-ECO units, circuit breakers…
  • Connectivity
    • Alarm relay with changeover contact to signal power, temperature or communication problems

Technical Specifications

Nominal voltage 180-253 VAC; 50/60Hz
Selectable maintain temperature 37 ° C to 65 ° C in max. 24 time blocks/day
Max. switching capacity 20 A 230 VAC, +10/-15%
IP rating IP 54
Mounting Wall mount with 2 screws or DIN rail /panels
Approvals / Certifications VDE according to EN 60730 (pending)
Compatible components HWAT-Sensor-NTC-10 m
Programmes 7 building specific time/temperature programmes. User specific programmes possible.
Temperature can set in 60 minutes blocks to any desired temperature between:
  • OFF Economy
  • T ° Maintain
  • T ° heat-up cycle (100% powered, increased risk of scalding)
Temperature Sensor
Sensor type NTC 2KOHM at 25°C
Diameter of sensor cable 4 mm
Sensor length total 3 m ( Standard delivery/Boiler sensor)
Connection and Protection