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Fresh air fan controller with touch buttons
RDF270
A6V12068497_en--_a
2021-04-16
Fresh air unit (FAU)
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Slim (8 mm thickness) touch button design
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AC 230 V supply voltage, large LCD backlit display
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Separate ON and OFF power button
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Fan type selection: 3-speed or ECM
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Manual fan speed adjustment at max. 3 speeds
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Mode of operations: Internal and external air circulations
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Bypass function for external air circulation
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Special FAU ECO mode for fresh air flow control
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Simple delay-off timer for max. 23 hours
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Keylock function
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Returning to previous operating mode, ON (Normal mode) or OFF for power down
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Adjustable commissioning and control parameters
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Mounting on recessed square 86 mm box with 60.3 mm fixing centers and mini-
mum 50 mm depth
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Related Manuals for Siemens RDF270
Summary of Contents for Siemens RDF270
- Page 1 Fresh air fan controller with touch buttons RDF270 Fresh air unit (FAU) ● Slim (8 mm thickness) touch button design ● AC 230 V supply voltage, large LCD backlit display ● Separate ON and OFF power button ● Fan type selection: 3-speed or ECM ●...
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Page 2: Advanced Functions
The FAU unit consists of two parts: ● LCD display ● Mounting plate to fit onto a square conduit box with 60.3 mm fixing centers. Operating and setting elements Chinese text display can be disabled via P98. Note Siemens A6V12068497_en--_a Smart Infrastructure 2021-04-16... - Page 3 Description RDF270 S55770-T441 AC 230 V Fresh air fan controller with touch buttons Ordering When ordering, specify both product number / stock number and name: e.g. RDF270 / S55770-T441 FAU unit Product documentation Title Document ID Operating instruction A6V12101240 CE declaration...
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Page 4: Mounting And Installation
A conduit box of at least 50 mm in depth is recommended to accommodate all wire connections. After installing the mounting plate, wire all unit terminals. Secure the unit to the mounting plate as described in the installation and operating instructions (Document ID: A6V12101240) enclosed with the unit. Siemens A6V12068497_en--_a Smart Infrastructure 2021-04-16... -
Page 5: Bypass Function
The mode setting repeats automatically within one hour. Other ratios can be selected via P26. When FAU ECO mode is selected and P24 = 0, operation mode is external circulation with- out bypass function. Otherwise, when P24 = 1, operation mode is external circulation with bypass function. Siemens A6V12068497_en--_a Smart Infrastructure 2021-04-16... - Page 6 P26. For example, the factory setting (P26 = 1:5) means that within one hour, RDF270 stays in external air circulation for 10 minutes, then switches to internal circulation for 50 minutes. The setting repeats as long as FAU-ECO mode is active.
- Page 7 Press the (✓) button to confirm the new value or press ) to cancel the change, and repeat steps 3 to 5 to change more parameters. Press the ( ) button to exit parameter setting mode. Siemens A6V12068497_en--_a Smart Infrastructure 2021-04-16...
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Page 8: Reload Factory Setting
0 = Disable 1 = Reload start P98 * Enable Chinese text display 0 = Disable 1 = Enable * The parameters are critical and must be set according to the selected equipment during Note commissioning. Siemens A6V12068497_en--_a Smart Infrastructure 2021-04-16... -
Page 9: Operation
Only 3 manual fan speeds can be selected (low, medium and high) for 3-speed fan and ECM fan. Keylock Keylock can be activated or deactivated via parameter P14 (see Control parameters [ when the controller is in ON and OFF mode. Siemens A6V12068497_en--_a Smart Infrastructure 2021-04-16... -
Page 10: Operating Modes
Comply with all local and currently applicable laws and regulations. Cyber security disclaimer Siemens provides a portfolio of products, solutions, systems and services that includes secu- rity functions that support the secure operation of plants, systems, machines and networks. In the field of Building Technologies, this includes building automation and control, fire safe- ty, security management as well as physical security systems. -
Page 11: Warranty
Use of versions that are no longer supported, and failure to apply the latest updates may increase your exposure to cyber threats. Siemens strongly recom- mends to comply with security advisories on the latest security threats, patches and other re- lated measures, published, among others, under https://www.siemens.com/cert/en/cert-... - Page 12 Solid or stranded Ambient conditions and protection classification Classification as per EN 60730 Function of automatic control devices Type 1 Degree of contamination Overvoltage category Design type Device suited for use with equipment of safety class II. Siemens A6V12068497_en--_a Smart Infrastructure 2021-04-16...
- Page 13 (RoHS compliance, materials composition, packaging, environmental benefit, disposal). General Weight without/with package 182 g / 253 g Housing front color White, RAL 9003 Housing flammability class according to UL94 The documents can be downloaded from http://siemens.com/bt/download. Siemens A6V12068497_en--_a Smart Infrastructure 2021-04-16...
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Page 14: Connection Terminals
Diagrams Connection terminals RDF270 L, N AC 230 V operating voltage Input reference ground for Y50 DC 0…10 V output Output, fan speed 1, AC 230 V Output, fan speed 2, AC 230 V Output, fan speed 3, AC 230 V... - Page 15 Application setup based on selection of Fresh Air Unit or Equipment Settings of these parameters, P02, P24 and P25 determine the RDF270 functionalities: Typical applications / Available function & user adjustment equipment Factory settings Single duct fresh air ● Operating mode (...
- Page 16 / mode or turn on / off device and all new settings for FAU-ECO mode is saved. Or if users wait for timeout, all new settings are saved, and device returns to Normal display. Siemens A6V12068497_en--_a Smart Infrastructure...
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Page 17: Dimensions (Mm)
Dimensions (mm) Siemens A6V12068497_en--_a Smart Infrastructure 2021-04-16... - Page 18 Issued by © Siemens Switzerland Ltd, 2021 Siemens Switzerland Ltd Technical specifications and availability subject to change without notice. Smart Infrastructure Global Headquarters Theilerstrasse 1a CH-6300 Zug +41 58 724 2424 www.siemens.com/buildingtechnologies Document ID A6V12068497_en--_a Edition 2021-04-16...