User Manual

ManualsBrandsSiemens ManualsThermostats (temperature controller with sensor)Self-learning room temperature controller REV23M

217

Self-learning room

temperature controller

REA23M

Boiler control with OpenTherm Plus interface

• Straightforward, self-explanatory menu selection via setting knob

• Permanent self-learning, adaptive control providing PID mode

• Choice of operating modes:

Automatic with maximum 3 heating periods, continuous comfort mode, con-

tinuous economy mode, frost protection with one 24-hour operating mode with

one heating period

• In automatic mode, one temperature setpoint can be adjusted for each heating

period

Use

In combination with Boiler Management Units (BMU) or heating controllers with Open-

Therm Plus interface. For the control of the room temperature in:

• Apartments, single-family or 2-family houses

• Smaller multifamily houses

• Holiday houses and villas

For use in all standard heating systems, such as radiator or convector heating systems.

Especially suited for heating plants with pump heating circuits. If the boiler control sys-

tems feature integrated mixing valve control, it is also possible to control mixing heating

circuits.

pplication

CE1N2217en

17.04.2007

Building Technologies

HVAC Products

Summary of content (14 pages)

PAGE 1
2 Self-learning room temperature controller 217 REA23M Boiler control with OpenTherm Plus interface • Straightforward, self-explanatory menu selection via setting knob • Permanent self-learning, adaptive control providing PID mode • Choice of operating modes: Automatic with maximum 3 heating periods, continuous comfort mode, continuous economy mode, frost protection with one 24-hour operating mode with one heating period • In automatic mode, one temperature setpoint can be adjusted for each heating peri
PAGE 2
Functions • • • • • • • • • • • • • • • • • • Delivery of the flow temperature setpoint Pure room temperature control Permanent self-learning PID control for normal and fast control loops 2-position control for difficult controlled systems Automatic mode with 7-day switching program for 24-hour, working day, weekend or 7-day operation with up to 3 heating periods per day (4th priority for actual valid temperature setpoint) Integrated 7-day time switch One temperature setpoint for each heating period One 2
PAGE 3
Operating elements Selection of operating mode (4th priority for actual valid temperature setpoint) Warmer button Colder button Override button (3rd priority for actual valid temperature setpoint) Leaving the current menu level and returning to the previously active menu level (the settings currently displayed will be accepted) ESC The rotary knob is only operable within the menus. Move from menu to menu, modify adjustable variables (temperature in increments of 0.
PAGE 4
Error display Permanent display: Communication with BMU incorrect or REA23M is not placed on its base. Flashing display: BMU reports an error Flashing display: BMU reports an error and writes its error code on display.
PAGE 5
Menu-driven user settings: 4 main menus available Time of day and day Main menu OK Submenu Settings Current time of day h ESC Current day of week Temperature OK Main menu ESC OK T Main menu Time switch Factory settings Submenu Setpoint comfort mode 19 °C Setpoint economy mode 16 °C Setpoint frost protection 5 °C Setpoint economy mode remote operation 10 °C Submenu Settings Selection of day of week, working day, weekend or week ESC Selection of the number of heating periods, max.
PAGE 6
Menu-driven heating engineer settings Main menu Settings CAL Sensor calibration Setpoint limitation OK ESC Optimum start control for the first heating period (in unit of time per 1 °C) 2-position control PID mode, permanent-self-learning PID6 mode for fast and PID12 mode for normal controlled systems Temperature setpoints In automatic operating modes, temperature setpoints can be individually adjusted for every comfort period and for the continuous operating modes.
PAGE 7
Switching program The switching program can be used as a 7-day or 24-hour switching program, depending on programming. It is also possible to select one of the continuous operating modes with which the switching program is not used. With the 7-day switching program, it is possible to program all days individually, the working days (1-5), the weekend (6-7), or the entire week (1-7). When a heating period is programmed, 3 different switching patterns are available.
PAGE 8
Transmission of actual operating mode to Siemens boiler management unit When REA23M recognizes a connected boiler management unit LMU33, LMU36, LMU54, LMU55, LMU64, LMU65 from Siemens (refer to user guide), the actual operating mode of the REA23M is being transmitted to the boiler management unit. Connecting other Siemens boiler management units or boiler management units from other manufacturers, the actual operating mode of the REA23M is not being transmitted. This procedure runs automatically.
PAGE 9
Heating engineer level Access The heating engineer level will be enabled by pressing simultaneously the warmer and colder buttons and by turning the setting knob counter-clockwise and then clockwise. Sensor calibration If the displayed temperature does not agree with the effective room temperature, the temperature sensor can be recalibrated (recalibration to be made on the heating engineer menu). The displayed temperature can be matched to the effective room temperature in increments of 0.2 °C (max.
PAGE 10
Exceptions Reset functions In exceptional cases, in which the permanent-self-learning mode may not be ideal, PID 12, PID 6 or 2-Pt mode can be selected: PID 12 mode For normal or slow controlled systems (massive building structures, large spaces, cast-iron radiators, oil burners). PID 6 mode For fast controlled systems (light building structures, small spaces, plate radiators or convectors, gas burners). 2-Pt mode Simple 2-position control with a switching differential of 0.5 °C (±0.
PAGE 11
2261Z03 min. 10 cm Mounting and installation • When installing the controller, the base must first be fitted and wired.
PAGE 12
Technical data Power supply Battery data Data backup (unit removed from base / no batteries inserted) Safety data Sensing element various features Norms and standards OpenTherm bus Connection Length of cable Resistance of cable Power consumption Batteries (Alkaline AA) Battery life Backup for battery change Data backup (unit removed from base / no batteries inserted) User settings Actual time (without batteries) Safety class Degree of protection of housing Pollution Sensing element Measuring range Tim
PAGE 13
Environmental conditions Weight Color Size Operation Climatic conditions Perm. Ambient temperature Humidity Storage and transport Climatic conditions Temperature Humidity Mechanism Incl. package Housing Base Housing 3K3 to IEC 60 721-3 5…40 °C < 85 % r.h. 2K3 to IEC 60 721-3 -25…70 °C < 93 % r.h. 2M2 to IEC 60 721-3 0.31 kg Signal white RAL9003 Gray RAL7038 140 x 104.
PAGE 14
30 Dimensions 2216M01 Ø 60 56 78.8 99 140 123 12 + 11.75 83.50 14/14 Building Technologies HVAC Products ©2007 Siemens Switzerland Ltd. Room temperature controller REA23M Subject to alteration CE1N2217en 17.04.