Siemens REA23.03RF User manual

2218
REA23.03RF REA-R.03/1
REA23R/ST
Self-learning room
temperature controller REA23.03RF
Receiver REA-R.03/1
Consisting of controller (with integrated radio transmitter) and receiver
(switching unit with relay outputs)
•Mains-independent room temperature controller
•Straightforward, self-explanatory menu selection via setting knob
•Self-learning 2-position controller providing PID mode (patented)
•Choice of operating modes:
Automatic with maximum 3 heating or cooling periods, continuous comfort, continu-
ous economy, frost or overheat protection with one 24-hour operating mode including
one heating or cooling period
•In automatic mode, one temperature setpoint can be entered for each heating or
cooling period
•Optional control of cooling equipment
•Advantageous for retrofitting and upgrading projects
(wireless room unit)
Use
For 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
CE1N2218en
17.04.2007
Building Technologies
HVAC Products

•Solenoid valves of atmospheric gas burners
•Forced draft gas or oil burners
•Circulating pumps of heating systems, zone valves
•Electric direct heating systems or fans of electric storage heaters
•Thermal actuators
•Cooling and refrigeration equipment
Functions
•Radio signal transmission
•PID control with self-learning or selectable switching cycle
•2-position control
•Automatic mode with 7-day switching program for 24-hour, working day, weekend or
7-day operation with up to 3 heating or cooling periods per day
•Each heating or cooling period has its own temperature setpoint
•One 24-hour operating mode with one heating or cooling period
•Override button
•Sensor calibration and reset function
•Frost protection or overtemperature protection
•Limitation of the minimum setpoint
•Holiday mode
•Heating or cooling mode
•Periodic pump run
•Optimum start control with the first heating period
Type summary
Radio signal equipment consisting of:
Room temperature controller (transmitter), receiver (switching unit)
and support REA23R/ST
Room temperature controller (transmitter) and support REA23.03RF
Receiver (switching unit) REA-R.03/1
Ordering
When ordering, please give the type references according to «Type summary».
The controller / transmitter REA23.03RF is supplied complete with batteries.
Technical design
Display and
operating elements
+
ESC OK
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Operating elements
Selection of operating mode (see below)
«Warmer» button
«Colder» button
Override button (see below)
ESC
Leaving the current menu level and returning to the menu
level previously active (settings currently displayed will be
accepted)
The rotary knob is only operable within the menus.
Move from menu to menu, modify adjustable variables (tem-
perature in increments of 0.2°C and time in hours and minutes)
and select functions.
OK
Access the menus, enable a menu, save inputs, switch to the
next menu item and acknowledge with the OK button.
Displays
Time of day
° C Room temperature
Change batteries (display appears about 3 months before bat-
teries are exhausted)
Holiday mode active
Selection of operating mode (only one operating mode active)
Automatic mode
Comfort mode
Economy mode
Frost protection or overheat protection
Special day (24-hour mode with one heating or cooling phase.
The switch-on and switch-off time and the setpoint for the pha-
se are set manually).
Temporary change of the current setpoint temperature
(change only active until the next switching point is reached)
° C
Press the + or – button once to display the adjusted tempera-
ture setpoint. It can be readjusted in increments of 0.2 °C (max.
+/- 4 °C)
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Override button
In operating modes and , this button can be used to manually switch
from comfort to economy temperature, or vice versa. The selection is automati-
cally reset when the next switching point is reached or when the operating
mode is changed
Menu-driven user settings: 4 main menus are available
Time of day and weekday Main menu Submenu Settings
OK
hCurrent time
ESC
Current weekday
Temperature Main menu Submenu Default settings – heating / cooling
T Setpoint of comfort mode 19 °C 23 °C
OK
ESC
Setpoint of economy mode 16 °C 29 °C
Setpoint frost or
overtemperature protection 5 °C 35 °C
Setpoint remote operation is
not used with this unit (10 °C) (30 °C)
Time switch Main menu Submenu Settings
Selection of weekday, working day,
weekend or week
OK
ESC
Selection of the number of heating
or cooling periods (max. 3 periods
per day)
h
Selection of the heating / cooling period’s start and end time
° C
T
Selection of the heating / cooling period temperature setpoint
Absence Main menu Submenu
OK
ESC
Entry of holidays or periods of absence. Number of
days with economy mode setting / max. 99 days
Temperature setpoint during absence.
Default setting is 12 °C for heating and 30 °C for
cooling
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Menu-driven heating
engineer settings Menu items 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, self-learning
PID mode, switching cycle 6 or 12 minutes
/Periodic pump run off / on
Heating / cooling mode
Temperature
setpoints In automatic operating modes, the temperature setpoints can be individually adjusted
for every comfort period and for the continuous operating modes. The temperature
setpoint of economy mode is the same in automatic and continuous operation.
Protective function
In frost or overtemperature protection mode, the room temperature is constantly moni-
tored. If it falls (rises) below (above) the adjusted setpoint, control to the adjusted frost
or overtemperature protection setpoint will be ensured.
The "special" day is a 24-hour exception mode with one heating or cooling phase. The
switch-on and switch-off time and the setpoint for the (heating or cooling) phase are set
manually.
The settings for the "special" day (exception) are not linked to any particular day, and
remain in memory until you modify these settings yourself. You can then select this
preset special day operating mode quickly and easily with the operating-mode selector
button . It will remain active until another operating mode is selected.
Special day
Switching program
The switching program can be used as a 7-day or 24-hour 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 program, all individual days, working days (1-5), weekend (6-7), or the
entire week (1-7) can be programmed.
For each heating / cooling period, 3 different switching patterns are available.
There is a choice of 1, 2 or 3 heating / cooling periods. For each heating / cooling pe-
riod, the start time, end time and comfort setpoint are to be entered.
In between heating / cooling periods, the same economy temperature setpoint is al-
ways used. This economy temperature setpoint can be adjusted on the temperature
menu.
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2261Z02
16
°C
18
20
22
08 10 18 22 h
Heizphase 1
Heizphase 2
Example with 2 heating
periods per day
Holiday function
The holiday function is to be selected on the user menu. Set the start of the holiday
period (day of departure / /weekday), the duration of the holiday period and
the temperature setpoint ( ). This will enable the controller to maintain the adjusted
temperature for a period of up to 99 days. Every day at midnight, the counter subtracts
one day.
When the holiday period is over, the counter reads 00, and the controller will automati-
cally resume the operating mode selected last.
Remote operation
To be flexible, the REA23.03RF has no connection facility for remote operation.
Factory settings
Switching times Temperatures in ° C
1st
period
2nd
period
3rd
period
Oper-
ating
mode
Block /
week-
days 1st period 2nd period 3rd period
Auto
1-5
Mo-Fr
6-7
Sa-Su
06:00
07:00
08:00
23:00
11:00 13:00 17:00 22:00
19
19
23
23
20
23
21
23
16
16
29
29
1-7
Mo-Su 00:00 24:00 19 23
1-7
Mo-Su 00:00 24:00 16 29
1-7
Mo-Su 00:00 24:00 5 35
1-7
Mo-Su 07:00 23:00 19 23
Absence 12 30
Setpoint limitation
Factory settings
Heating engineer level Control mode 2-Point control
Optimum start control OFF
Periodic pump run OFF
Heating active
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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
CAL
If the displayed temperature does not agree with the room temperature effectively
measured, the temperature sensor can be recalibrated (recalibration to be made on the
heating engineer level.)
The displayed temperature can be matched to the effective room temperature in incre-
ments of 0.2 °C (max. ± 2 °C).
Setpoint limitation
Minimum setpoint limitation to 16 °C prevents undesired heat transfer to neighboring
apartments in buildings with several heating zones. The setting is to be made on the
heating engineer menu.
Optimum start control
Optimization brings forward the switch-on point of the first heating period such that the
adjusted setpoint will be reached at the required time.
The setting depends on the type of controlled system, that is, on heat transmission
(type of piping system, radiators), building dynamics (building mass, insulation), and
heat output (boiler capacity, flow temperature).
Optimum start control is switched off at
Example using an actual
room temperature of 18 °C
and a setpoint of 20 °C
t
T
17
18
19
- 4 - 2
2264D03
16
- 3
1/4h/°C
1/2h/°C
1h/°C Start
- 2 - 1 - ½ - 1½
- 1 - ½ - ¼
- ¾
Pon
20
°C
- 1 h
h
h
TRx
h
h
h
h
h
h
h
h
h
1st heating period
(slow controlled system)
(medium controlled system)
(fast controlled system)
(no impact)
Optimum start controll Off
T
T Temperature (°C) TRxActual valve of room temperature
t Forward shift of switch-on point (h) Pon Starting point of optimum start control
Control REA23.03RF is a 2-position controller providing PID mode. The room temperature is
controlled by the cyclic switching of an actuating device.
The controller generates the positioning signals depending on the deviation of the set-
point from the actual value acquired by the built-in temperature sensor.
The rate of response to the deviation depends on the selected control algorithm:
Self-learning mode If self-learning operating mode is active, the controller automatically adapts to the con-
trolled system (type of building construction, heating capacity, type of heaters, room
size etc.). After a learning period, the controller self-optimizes the parameters and then
operates in accordance with the newly learned parameters.
PID 12 mode Switching cycle of 12 minutes for normal or slow controlled systems
(massive building structures, large spaces, cast-iron radiators, oil
burners).
PID 6 mode Switching cycle of 6 minutes for fast controlled systems (light building
structures, small spaces, plate radiators or convectors, gas burners).
2-Pt mode The (factory-set) default mode is 2-Pt mode: simple on/off controller
with a switching differential of 0.5+°C (±0.25 °C) for very difficult con-
trolled systems with large fluctuations in the outdoor temperature.
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Periodic pump run
/
Protects the pump against seizing during longer off periods. Periodic pump run is acti-
vated for one minute every 24 hours at midnight. This function can be selected on the
heating engineer menu.
Periodic pump run active: / periodic pump run inactive:
Operating mode
Heating / cooling
/
The controller is suited for cooling applications.
The function can be selected on the heating engineer menu.
The controller comes set for heating operation (refer to section «Factory settings»).
User-defined data:
Press the button behind the pin opening for at least one second: This resets the user-
specific settings to their default values (heating engineer settings will not be changed).
The clock starts at 12:00. During the reset time, all sections of the display are lit, ena-
bling them to be checked.
All user-defined data plus the heating engineer settings:
Press the button behind the pin opening together with the warmer and colder buttons
for at least one second.
After the reset, all factory settings will be reloaded (also refer to section «Factory
settings»).
Mechanical design
Controller The REA23.03RF has a plastic housing with a large display and easily accessible op-
erating elements. The controller is removed from its base by sliding it upward. It is thus
possible to replace the two type AA 1.5 V alkaline batteries contained in the compart-
ment at the rear of the controller.
About 3 months before the batteries are exhausted, battery symbol appears on
the display, but all functions are fully maintained. When replacing the batteries, the
current data will be retained for a maximum of one minute.
Battery change
Receiver
REA-R.03/1 Plastic housing with easily accessible operating elements and removable cover. The
unit can be fitted to all commercially available recessed conduit boxes or directly on the
wall. A relay with a potential free changeover contact, the connection terminals and the
receiving antenna are integrated in the housing.
Base The base can be fitted to most types of commercially available recessed conduit boxes
or directly on the wall.
Support The support supplied with the controller enables the unit to be put on a shelf. It can be
easily fitted to the controller with no need for tools.
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Note
•The room unit should be located in the main living room (on the wall or free-standing
using the support provided) while giving consideration to the following points:
Planning
controller / transmitter
REA23.03RF •The distance to the receiver should not exceed 20 m or 2 floors
•The unit should be located such that the sensor is able to capture the room tempera-
ture as accurately as possible, without getting affected by direct solar radiation or
other heat or refrigeration sources (in the case of wall mounting, about 1.5 m above
the floor)
•The unit should be located such that it can transmit signals with as little interference
as possible. For this reason, the following points should be observed:
−Do not mount the unit on metal surfaces
−Not in the vicinity of electrical cables and equipment such as PCs, TV sets, mi-
crowave appliances, etc.
−Not in the vicinity of large metal structures or construction elements with fine
metal meshes like special glass or special concrete
•The control mode can be changed via the menu-driven heating engineer settings.
•If the room temperature displayed does not agree with the room temperature effec-
tively measured, the temperature sensor should be recalibrated (refer to «Calibration
of sensors»).
Wall mounting of
controller / transmitter
REA23.03RF
•In the case of wall mounting, ensure that there is sufficient clearance for removing the
controller from its base, and for replacing it
First, fit the base. Then, engage the controller from the top. The base can be fitted to
most commercially available recessed conduit boxes or directly on the wall
min.
10 cm
2261Z03
Support of
REA23.03RF
•Refer to the Installation Instructions printed on the package.
Planning
Receiver
REA-R.03/1
•The receiver and switching unit should preferably be mounted near the controlled
device
•The unit should be located such that it can receive signals with as little interference
as possible. For this reason, the following points should be observed (same as with
the transmitter):
−Not in control panels
−Not on metal surfaces
−Not in the vicinity of electrical cables and equipment such as PCs, TV sets, mi-
crowave appliances, etc.
−Not in the vicinity of large metal structures or construction elements with fine
metal meshes like special glass or special concrete
•The location where the unit is mounted should be dry and free from splash water
•The unit can be fitted to most commercially available recessed conduit boxes or di-
rectly on the wall
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The receiver must be wired with the power supply switched off.
Mains voltage may be switched on again only after the unit is completely
mounted.
Mounting and
installation of receiver
REA-R.03/1
•When mounting the unit, the base must first be fitted and wired (L/N = AC 230 V
mains supply, LX/L1 = consumers). Then, engage the unit at the top, swing it down-
ward and secure it with a screw
•For more detailed information, refer to the Installation Instructions supplied with the
unit
For the electrical installation, the local safety regulations must be complied with.
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LED_1 (green / red):
Indication for
- Signal strength
- Receiver linked to
cotroller/transmitter
Commissioning
controller/transmitter
REA23.03RF
and receiver
REA-R.03/1
LED_2 (orange):
Indication for
- Learning mode
- Telegram reception
- Status of relais contact
Override button and
test telegram
SET button
ESC button and
learnin
g
tele
g
ram RESET button
1. Switch on
REA23.03RF
•Remove the battery transit tab: As soon as the battery transit tab is removed, the
unit starts to operate.
2. Mount REA-R.03/1
temporarily
•If possible, mount receiver temporarily in a first run (e.g. double coated tape). Doing
that, location of best RF reception can be identified later on. See clause “5 Find lo-
cation of best reception“
•Completely wire and mount REA-R.03/1 temporarily (please also close front cover)
a) Switch on power at REA-R.03/1: LED_1 lights always in red or flashes in red
3. Link REA-R.03/1
with REA23.03RF b) Press the "RESET“ button on REA-R.03/1 for about 4 seconds: The orange LED_2
will flash very fast and briefly (stored address of REA23.03RF will be erased)
c) Press the "SET“ button (set / learn) for about 3 sec. until the orange LED_2 starts
flashing slowly and continuously: Receiver is now in learning mode
d) The receiver stays max. 25 minutes in learning mode. If no learning telegram from
REA23.03RF is received during that period of time, repeat steps b) and c) again
e) Press the ESC button on REA23.03RF for about 4 seconds. Learning telegram is
transmitted
f) If REA-R.03/1 receives learning telegram, the orange LED_2 flashes fast and
briefly
g) If the orange LED_2 is steady on, the relay is energized (= controlled device ON)
h) If the orange LED_2 is dark, the relay is de-energized (= controlled device OFF)
i) Depending on the operating state, REA23.03RF repeats the ON or OFF control
telegram every 3 minutes. With this the relay will be switched ON or OFF according
to control telegram latest after 3 minutes
j) If REA-R.03/1 does not receive any correct control telegram within 60 minutes,
controlled device is being switched off and LED_1 flashes in red
k) In the event of a power failure at the REA-R.03/1, the relay will be de-energized.
HVAC Products 17.04.2007

4. Site REA23.03RF •Site REA23.03RF at preferred location for mounting at wall or setting up with stand
•Also refer to “Mounting and siting notes REA23.03RF and REA-R.03/1“
a) Switch off power at REA-R.03/1
5. Find location of
best RF reception b) Switch on REA23.03RF, site at preferred location and press override button for
about 4 seconds: REA23.03RF transmits test telegrams every 2 seconds.
Transmission of test telegrams stops automatically after 10 minutes or after press-
ing either “ESC” button or override button
c) Switch on power at REA-R.03/1
d) Observe both LEDs on REA-R.03/1 from a distance of 2…3 meters
e) Orange LED_2 must flash briefly every 2 seconds. If LED_2 does not flash every
2 seconds, distance between REA23.03RF and REA-R.03/1 is too far. Mount
REA-R.03/1 closer to REA23.03RF
f) LED_1 shows received signal strength of last telegram:
LED_1 flashes red: Signal is too weak to get a durable link. Mount REA-R.03/1
closer to REA23.03RF
LED_1 flashes green: We distinguish between three signal strengths:
Very good (flashes 3x), Good (flashes 2x) and
Satisfactory (flashes 1x).
As soon as LED_1 flashes in green, link between
REA23.03RFand REA-R.03/1 is basically ok.
g) Move REA-R.03/1 within an area of approximately 1 square meter to find location of
best RF reception. Always observe LEDs from a distance of 2…3 meters. To get a
durable link, we recommend that REA-R.03/1 be placed in a location where the sig-
nal strength is at least “Good”.
6. Explanations
to LEDs
No REA
23.03RF
link
ed
LED_1 lights always
in red
Red on
Red off
Signal
strength too weak
LED_1 flashes in red
Red on
Red off
Si
g
nal stren
g
th: Ver
y
g
ood
1 2 3
Starting
sequence
Starting
sequence
1 2 3
LED_1 flashes
3 times in green Green on
Green off
Si
g
nal stren
g
th: Good
1 2 1 2
Starting
sequence Starting sequence Starting
sequence
LED_1 flashes
2 times in green
Green on
Green off
Si
g
nal stren
g
th: Satisfactor
y
11
Starting
sequence Starting
sequence Starting
sequence
1
LED_1 flashes
1 time in green Green on
Green off
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Controlled device OFF
LED_2 is always off
Orange on
Orange off
HVAC Products 17.04.2007

Controlled device ON
LED_2 is always on
Orange on
Orange off
Learning mode active
LED_2 flashes
continuously
Orange on
Orange off
Repetition of control telegram
LED_2 flashes briefly
a) Switch off power
7. Finishing
mounting of
REA-R.03/1 b) Mark location where REA-R.03/1 is currently fixed
c) If necessary loosen wiring
d) Mount receiver at location marked before, wire completely and close housing
e) Switch on mains power
Notes •If, during normal operation, the REA-R.03/1 receives either a very weak control
telegram from REA23.03RF or no control telegram for longer than 25 minutes,
LED_1 starts to flash in red.
If the control telegram is still understood correctly, the receiver continues with nor-
mal operation. If the control telegram is no longer understandable, the relay re-
mains in the last switching position.
As soon as the REA-R.03/1 does receive a correct control telegram from the
REA23.03RF again, the receiver continues with normal operation
•In case of error, REA-R.03/1 switches off the relay approximately 60 minutes after
receipt of the last correct control telegram. The controlled device is also switched
off and LED_1 flashes in red.
As soon as the REA-R.03/1 does receive a correct control telegram from
REA23.03RF again, the receiver continues with normal operation
•In the event of a power failure at the REA-R.03/1, the relay is de-energized.
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Technical data controller / transmitter REA23.03RF
Operating voltage DC 3 V
Batteries (alkaline AA)
Battery life
Backup for battery change
2 x 1.5 V
Approx. 2 years
Max. 1 min
General data
controller / transmitter
Sensing element NTC
Measuring range
Time constant
NTC 10 kΩat 25 °C ±1 %
0…50 °C
Max. 10 min
Setpoint setting ranges
Normal temperature
Economy temperature
5 … 29 °C
5 … 29 °C
Frost protection setpoint
Setting range
Factory setting
5...29 °C
5 °C
Resolutions of settings and display
Setpoints
Switching times
Measurement of actual value
Display of actual value
Display of time
0.2 °C
10 min
0.1 °C
0.2 °C
1 min
General data controller
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SRD band
Transmit frequency REA23.03RF
Max. transmitter power
Max. data throughput
Modulation
Frequency stability
Address range
(preset in the factory)
868.7 to 869.2 MHz
868.95 MHz
< 10 mW / typically 4 mW
19200 symbol/s = 38400 bps
Binary frequency changeover BFSK
< ±20 ppm (±17 kHz)
16 bit (0...65535)
General data transmitter
Operation
Climatic conditions
Temperature
Humidity
To IEC 60 721-3
Class 3K3
5...+40 °C
<85 % r. h.
Transport
Climatic conditions
Temperature
Humidity
Mechanical conditions
To IEC 60 721-3
Class 2K3
−25...+70 °C
<93 % r. h.
Class 2M2
Environmental
conditions
conformity
EMC directive
R&TTE directive
89/336/EEC
EN 301 489-3
Product safety
Radio equipment EN 301 489-3
Automatic electrical controls for
household and similar use EN 60 730-1
Electromagnetic compatibility
Immunity
Emissions
Radio equipment
EN 61 000-6-1
EN 61 000-6-3
EN 300 220-3
Approvals
In the following countries 0359 ! All ECC countries,
Norway, Iceland and Switzerland
Devices of safety class
Degree of pollution II to EN 60 730-1 normal
Norms and standards
HVAC Products 17.04.2007

Weight (incl. package)
REA23.03RF
REA23R/ST
0.37 kg
0.68 kg
Color
Housing Signal white RAL 9003
Base GrYy RAL 7038
Dimensions 140x103x30 mm
Technical data receiver REA-R.03/1
Operating voltage
Power AC 230 V +10/−15 % < 10 VA
Frequency 45...65 Hz
Switching capacity of relays
Voltage
Current
AC 24...250 V
6 (2.5) A
General unit data
Operation
Climatic conditions
Temperature
Humidity
To IEC 60 721-3
Class 3K3
0...+45 °C
<85 % r. h.
Storage and transport
Climatic conditions
Temperature
Humidity
Mechanical conditions
To IEC 60 721-3
Class 2K3
−25...+70 °C
<93 % r. h.
Class 2M2
Environmental conditions
conformity
EMC directives
Low-voltage directives
R&TTE directives
89/336/EEC
2006/95/EEC
EN 301 489-3
Product safety
Radio equipment
Automatic electrical controls
for household and similar use
Special requirements placed on
energy controllers
EN 301 489-3
EN 60 730-1
EN 60 730-2-11
Electromagnetic compatibility
Immunity
Emissions
Radio equipment
EN 61 000-6-1
EN 61 000-6-3
EN 300 220-3
Approval
In the following countries 0359 ! All ECC countries,
Norway, Iceland and Switzerland
Devices of safety class
Degree of pollution II to EN 60 730-1 Normal
Weight (incl. package)
REA-R.03/1
REA23R/ST
0.24 kg
0.68 kg
Color
Unit front
Base
Signal white RAL 9003
Grey RAL 7038
Dimensions 83x104x32 mm
Norms and
standards
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Connection diagram receiver REA-R.03/1
L Live conductor, AC 230 V
N Neutral conductor, AC 230 V
Lx Live, AC 24...250 V
L1 N.O. contact,
AC 24...250 V / 6 (2.5) A
L2 N.C. contact,
AC 24...250 V / 6 (2.5) A
M1 Circulating pump
N2 Receiver REA-R.03/1
Lx
L1
Y1 M1
N2
Nx
L
NL2
2255A01
AC 230 V
AC 24...250 V
Lx
Nx
N
L
Y1 Actuating device
Application examples
T
TF1
F2
N2
M1
Y2
2255S01
N1
T
F1
F2
N2
M1
Y2
2255S02
T T
T
N1
Instantaneous hot water heater Atmospheric gas burner
N1
Y4
2255S03
Y3
N2
T
N4
T
N3
TN1
2255S05
E1
N2
Zone valve Cooling equipment
Y1
2252S04
M1
N2
T
N1
Circulating pump with precontrol by manual mixing valve
E1 Cooling unit N3 Room temperature controller (transmitter)
REA23.03RF
F1 Thermal reset limit thermostat N4 Receiver REA-R.03/1
F2 Safety limit thermostat Y1 3-port valve with manual adjustment
M1 Circulating pump Y2 Solenoid valve
N1 Room temperature controller (transmitter)
REA23.03RF Y3 Motorized 3-port valve
N2 Receiver REA-R.03/1 Y4 Motorized 2-port valve
15/16
Building Technologies Room temperature controller REA23.03RF CE1N2218en
HVAC Products 17.04.2007

Dimensions
Controller / transmitter REA23.03RF
+
123
140
78.8
99
83.50
56
12
11.75
2216M01
30
Ø
60
Receiver REA-R.03/1
84
104
32
2265M01
60
60
2265M02
16/16
Building Technologies Room temperature controller REA23.03RF CE1N2218en
©2007 Siemens Switzerland Ltd. Sub
j
ect to alteration
HVAC Products 17.04.2007