Electronic timeswitch - Siemens Center

Electronic timeswitch
RWB1007
To control combination boilers and single zone applications together with the
appropriate thermostat.
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Easy-to-read backlit display
Time programming 7-day
2/3 ON/OFFs
Advance and 1-hour boost
Clock with auto summer/winter changeover
Selectable time formats: 24-hour and 12-hour
LED “ON” lamps
Ideal for combination boilers
Industry standard backplate
Battery back-up
Service interval capable
Audio and visual service reminder
Siemens AG
Building Technologies
Use
The RWB1007 electronic timeswitch is designed to control combination boilers and single zone
applications together with the appropriate thermostat.
Functions
Service interval reminder function
The boiler service interval reminder function complies with Regulation 36 of the Gas Safety
(Installation and Use) Regulations 1998, requiring landlords to carry out a safety check at
intervals of no more than 12 months.
If the function is enabled, a message is displayed on screen, informing you about the number of
days remaining until the next boiler service is due, up to 50 days prior to the actual service date
(the prewarning period is set by the engineer, default is 50 days). Normal functions continue
during this stage.
The amount of prewarning days has to be entered by the installer, maintenance engineer, or
the landlord. Contact them when you see the warning for the first time. From then, the display
will switch between the normal display and the amount of remaining days. The RWB will also
emit a 5-second sound hourly between 09:00 and 21:00.
If the RWB goes past the service day, the system will be switched off with only the one-hour
“boost” feature working, and the display will switch between the real time and OFF.
Mechanical design
The unit consists of the following parts:
● Plastic housing with electronics (inputs, outputs), operating elements (HMI) and DIP
switches
● An industry standard backplate with screws
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Operation and settings
Switch 1: Programming switch. When all programming has been done, this switch must be in
RUN.
Switch 2: This switch allows you to choose how the RWB operates.
1. Constant: The RWB is permanently ON.
2. ALL DAY: The RWB switches on at the first ON and off at the last OFF.
3. AUTO: The RWB switches automatically at the programmed times.
Boost: The RWB switches on for one hour if it is in an OFF period, or adds an hour if it is
already in an ON period.
Advance: The RWB brings forward the next ON or OFF period. This feature only works in
AUTO or ALL DAY.
Type summary
Product number
Stock number
Description
RWB1007
BPZ:RWB1007
Electronic timeswitch
Delivery
When ordering, indicate the product number, stock number and description.
Equipment combinations
Description
Product number
Data sheet*)
Room thermostat
RAA21…
N3562
*) The documents can be downloaded from http://siemens.com/bt/download.
Product documentation
Siemens AG
Building Technologies
Topic
Title
Document ID
Installation and commissioning
RWB1007 User instructions
A6V10464930
Standards and directives
CE declarations
8000078260
Environmental compatibility
Environmental declarations
A6V101118376
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Related documents such as environmental declarations, CE declarations, etc., can be
downloaded at the following Internet address:
http://siemens.com/bt/download
Notes
Security
CAUTION
National safety regulations
Failure to comply with national safety regulations may result in personal injury and property
damage
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Observe national provisions and comply with the appropriate safety regulations.
Mounting
NOTICE
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Do not install the unit where either extremes of heat or cold exist.
Steam, water or oil cannot splash onto or enter the unit or its backplate.
Installation
NOTICE
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All external wiring must comply with current IEE regulations.
Only competent electricians may wire this unit.
Do not use this unit to control immersion heaters.
Comply with local regulations to wire, protect and earth the unit.
WARNING
No internal line protection for supply lines to external consumers
Risk of fire and injury due to short circuits!
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Adapt the line diameters as per local regulations to the rated value of the installed overcurrent protection device.
The AC 230 V mains supply must have an external circuit breaker with a rated current of no
more than 3 A.
Commissioning
Setting the On/Off times
Before leaving the factory, the RWB1007 was programmed with the correct date and time with
the following switching times dependent on the DIP switch setting on the back of RWB (factory
default 2 On/Off).
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Monday - Friday
Weekend
2 On/Off switching times
3 On/Off switching times
2 On/Off switching times
3 On/Off switching times
- On 06:00 Off 08:30
- On 16:30 Off 22:30
- On 06:00 Off 08:30
- On 12:00 Off 14:00
- On 16:30 Off 22:30
- On 07:00 Off 09:00
- On 16:30 Off 23:00
- On 07:00 Off 09:00
- On 12:00 Off 14:00
- On 16:30 Off 23:00
NOTICE
Press RESET after any DIP switch change.
Time format
The RWB1007 can display time in 24- or 12-hour format, with 24 hours as factory setting. To
change the format, press the RESET button on the front of the unit, and set to the desired
option.
Maintenance
The unit is designed for maintenance-free operation.
Disposal
The device is considered an electronic device for disposal in accordance with
the European Guidelines and may not be disposed of as domestic garbage.
● Dispose of the device through channels provided for this purpose.
● Comply with all local and currently applicable laws and regulations.
● Dispose of empty batteries in designated collection points.
Instructions for the replacement of lithium button batteries
WARNING
Explosion due to fire or short-circuit, even with discharged battery
Risk of injury due to flying parts
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Prevent the battery from coming into contact with water.
Do not extinguish a burning battery with water.
Do not recharge the battery.
Do not damage or disassemble the battery.
Do not heat the battery over 100°C.
WARNING
Leakage of electrolyte
Severe burns
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Handle damaged batteries only wearing suitable protective gloves.
In case of contact with electrolyte, rinse eyes immediately with plenty of water. Consult a
doctor.
Observe the following:
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Building Technologies
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Use only a battery of the same type as a replacement.
Observe the polarities (+/-).
The battery must be new and undamaged.
Store, transport and dispose of the battery in compliance with local requirements, regulations
and laws. Also observe the instructions of the battery manufacturer.
Warranty
Technical data on specific applications are valid only together with Siemens products listed
under "Equipment combinations". Siemens rejects any and all warranties in the event that thirdparty products are used.
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Technical data
Power supply
Operating voltage
AC 230 V
Switching voltage
AC 12…240 V
Frequency
50 Hz
Power consumption
50 mA
Backup battery
Type
CR2032 lithium battery
Life
Min. 3 years
Max. external supply line fusing: 3 A
Outputs
Contact rating
- Resistive: max. 6 A
- Inductive: max. 2 A
Environmental conditions
Moisture and dust ingress
IP30
Operating humidity
20…80% r.h., 90% r.h. non-condensing
Operating ambient temperature
0...50 ℃
Storage ambient temperature
-20...60 ℃
Standards, directives and approvals
EU conformity (CE)
8000078260 *)
Safety class
as EN60730-2-7 standard
Housing
as IEC 730 standard
Environmental compatibility
The product environmental declaration (A6V101118376 )
contains data on environmentally compatible product
design and assessments (RoHS compliance, materials
composition, packaging, environmental benefit, disposal).
*) The documents can be downloaded from http://siemens.com/bt/download.
General
Siemens AG
Building Technologies
Connection terminals
2.0 mm dia.
Housing
Fire retardant, ABS material
Weight without/with packaging
289 g/332.5 g
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Diagrams
Connection terminals
L
Live, AC 230 V
N
Neutral, AC 230 V
1
Switching input, hot water (HW)
2
Switching input, central heating (CH)
3
Switching output, hot water (HW), normally open (NO), voltage-free contact
4
Switching output, hot water (CH), normally open (NO), voltage-free contact
Wiring diagrams
Shutdown of heating ONLY when service due
Shutdown of heating and hot water when service due
Note:
● If AC 230 V direct mains switching is required, link L to 2.
● The voltage applied to terminal 2 is switched to terminal 4 when RWB is in the ON position.
● If wiring up as Service Interval Reminder for a combi-boiler, a new backplate supplied must
be used.
WARNING
The mains supply must be isolated before replacing an existing timeswitch.
Failure to do so may cause damage to the RWB and will invalidate any warranty claims.
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Application examples
Combination boiler
1 Combination boiler
2 Timeswitch, RWB
3 Room thermostat, RAA…
4 Heating circuit
Dimensions
Dimensions in mm
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Building Technologies
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Issued by
Siemens Switzerland Ltd
Building Technologies Division
International Headquarters
Gubelstrasse 22
CH-6300 Zug
Tel. +41 58 724 2424
www.siemens.com/buildingtechnologies
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Siemens AG
Building Technologies
Document ID
A6V10424353_b
Edition
2017-11-27
© Siemens Switzerland Ltd, 2017
Technical specifications and availability subject to change without notice.
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