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Siemens REV23

Siemens REV23
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CE1N2264en
23.04.2002
Siemens Building Technologies
HVAC Products
2
264
Self-learning Room
Temperature Controller
REV23
5 operating modes, heating / cooling functions and menu selection via roller selector
Mains-independent room temperature controller
Straightforward, self-explanatory menu selection via roller selector
Self-learning 2-position controller providing PID mode (patented)
Choice of operating modes:
automatic with maximum 3 heating or cooling periods, continuously comfort
mode, continuously economy mode, frost protection with one 24-hour operat-
ing mode and one heating or cooling period
In automatic mode, one temperature setpoint can be adjusted for each heating
or cooling period
Control of cooling equipment
Use
For the control of the room temperature in:
Apartments, single-family or holiday houses
Offices, individual rooms, consulting rooms or commercially used spaces
For control of the following pieces of equipment:
Solenoid valves of instantaneous water heaters
Solenoid valves of atmospheric gas burners
Forced draft gas or oil burners
Circulating pumps in heating systems, zone valves
Electric direct heating systems or fans of electric storage heaters
Thermic actuators
Cooling and refrigeration equipment

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Siemens REV23 Specifications

General IconGeneral
DisplayLCD
Protection classIP30
Control OutputRelay
Temperature control range5 to 30 °C
Power supply230V AC
Switching capacity10 A
Operating Voltage230V AC
MountingWall
Switching Differential±0.5 °C

Summary

Product Functions and Features

Functions Overview

Details the various operational functions and capabilities of the controller, including PID control and switching cycles.

Advanced Control and Settings

Time Switch Programming

Details programming options for the time switch, including day selection and heating/cooling periods.

Heating Engineer Settings

Provides access to advanced settings for system calibration, control modes, and optimizations.

Sensor Calibration

Explains how to calibrate the temperature sensor for accurate room temperature readings.

Optimum Start Control

Describes the function that optimizes heating start times to reach setpoint by the desired time.

Control Mode Selection (2-Position, PID)

Explains the different control modes available, including 2-position and PID self-learning.

Operating Modes Explained

24-Hour Operating Mode

Explains how the controller generates a 24-hour operating schedule from the current program.

Remote Operation and Factory Settings

Remote Operation

Explains how to switch the controller using remote operating devices and the display indicators.

Heating Engineer Level Details

Sensor Calibration Procedure

Provides detailed steps for recalibrating the temperature sensor for accurate readings.

Optimum Start Control Explanation

Details the optimization of heating start times based on system dynamics and setpoint.

Self-Learning PID Mode

Explains the self-learning PID mode, its adaptive capabilities, and how it optimizes control parameters.

PID Mode Operation

Describes the PID mode, its self-learning adaptation to building systems, and parameter optimization.

Control Modes, Functions, and Reset

PID and 2-Point Control Modes

Explains PID 12, PID 6, and 2-Pt control modes with their respective switching cycles and applications.

PID 12 Mode

Details PID 12 mode for normal or slow controlled systems with a 12-minute switching cycle.

PID 6 Mode

Details PID 6 mode for fast controlled systems with a 6-minute switching cycle.

Reset Functions

Details how to reset user-defined data or all factory settings using buttons behind the pin opening.

Installation and Commissioning Notes

Technical Specifications

General Unit Data

Lists general specifications like operating voltage, battery life, and relay switching capacity.

Safety and Sensing Elements

Details safety class, sensing element type, and measuring range of the controller.

Wiring and Application Examples

Connection Diagram

Illustrates the electrical connections for the room temperature controller and its components.

Application Examples

Shows wiring diagrams for connecting the controller to various HVAC equipment like water heaters and burners.

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