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nVent RAYCHEM Elexant 3500i Electronic Thermostat Installation Guide
Configuration
The Elexant 3500i electronic thermostats can be configured in a number of ways. The communicating, current sensing, and ground fault
detecting variants can be configured locally by means of a handheld programming device using the Elexant Connect application or from
a central location using the Touch 1500 or nVent RAYCHEM Supervisor software. For more information about configuring the Elexant
3500i using these software programs, please refer to the Elexant Connect Operations Manual (EU2191), Touch 1500-EX Operations Manual
(H58682), or the nVent RAYCHEM Supervisor Operations Manual (H57576). After programming, all settings are permanently stored in the
nonvolatile memory of the Elexant 3500i, avoiding loss of data in the event of power failure or after a long-term power shutdown.
The Standard and Alarm variants of the Elexant 3500i can be programmed via the digital switches and rotary dial located here:
Starting from the left, the first dipswitch is to set temperature sensor failure behavior. In the case of sensor failure the Elexant 3500i can
switch to an on or an off state, depending upon the users requirement. Setting the dipswitch up towards the filled circle will program the
Elexant 3500i to fail on, while setting the dipswitch down towards the empty circle will program the Elexant 3500i to fail off. By default, the
Elexant 3500i is shipped with a fail off setting, meaning in the event of a sensor failure, the Elexant 3500i will not energize the heat trace
circuit. Setting the dipswitch up towards the filled circle will program the Elexant 3500i to energize the heat trace circuit in the event of a
sensor failure.
Note that the Standard and Alarm variant of the Elexant 3500i will display a sensor failure alarm via a red status LED and the Alarm variant
will engage the alarm relay in the event of a sensor failure.
The second dipswitch is used to switch between Celsius and Fahrenheit. By default, the Elexant 3500i is shipped with this dipswitch down
towards the Celsius.
Finally the rotary dials are used to select a setpoint temperature. The Elexant 3500i monitors the sensor temperature and compares it to the
setpoint temperature. If the measured temperature is above the control temperature setpoint by more than the Deadband value, (by default
3°C / 5°F) the output is turned off. If the control temperature falls below the control temperature setpoint, the output is turned on. When the
control sensor temperature is within the dead band, the output does not change its state.
nVent.com/RAYCHEM
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| General | Details |
|---|---|
| Name | nVent RAYCHEM Elexant 3500i Electronic Thermostat Installation Guide |
| Make | nVent RAYCHEM |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.26 MB |
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