Siemens RDF270, Manual

Page 1: ... Mode of operations Internal and external air circulations Bypass function for external air circulation Special FAU ECO mode for fresh air flow control Simple delay off timer for max 23 hours Keylock function Returning to previous operating mode ON Normal mode or OFF for power down Adjustable commissioning and control parameters Mounting on recessed square 86 mm box with 60 3 mm fixing centers and...

Page 2: ...on P24 Enable selection of internal and external air circulations P25 Select fresh air flow control via FAU ECO mode P02 2 P26 Operating mode after power resumed Previous mode ON or OFF P27 Enable delay off timer up to 23 hours P28 Set maximum and minimum fan output for ECM fan P55 P56 Set minimum on time for fan P59 3 speed fan only Reload factory settings for commissioning and control parameters...

Page 3: ... fan speed mode Setting On Off Type summary Product no Stock no Operating volt age 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 A5W00161028A RCM A5W00161038A Environme...

Page 4: ...ors or above or near heat sources Avoid direct solar radiation and drafts Avoid unheated uncooled building area such as outside walls Seal the conduit box or the installation tube if any as air currents can affect sensor read ings Adhere to allowed ambient conditions A mounting plate is provided for fitting onto a square conduit box with 60 3 mm fixing cen ters A conduit box of at least 50 mm in d...

Page 5: ...ting of external circulation only and 3 speed manual fan P53 3 i e P02 1 P24 0 P25 0 and P26 1 See Control parameters 6 Alternatively some fresh air units or purifiers are equipped with ECM fan P53 8 This al lows user selection of low medium and high fan speeds Bypass function When P24 1 bypass heat recovery function is enabled i e users can select external circu lation without bypass and with byp...

Page 6: ...the outside temperature is cooler or warmer simply letting the outside temperature in to maintain a comfort level via the bypass function or no heat exchanging with exhaust air is extremely useful and economical FAU ECO function Eco balance FAU ECO is an automatic function to switch between internal and external air circulation and therefore P25 must be enabled or P25 1 In addition to enable this ...

Page 7: ...d hold the button until Pxx is displayed Press the or or button to access the desired parameter and the value of the selected parameter is displayed at the same time Press the button to edit the value of the required parameter Press the or button to increase decrease or select the value of the current parameter during editing Press the button to confirm the new value or press to cancel the change ...

Page 8: ...io within one hour 1 1 1 5 2 2 4 3 3 3 4 4 2 5 5 1 P27 Operating mode after power failure 0 0 Previous operating mode 1 OFF 2 ON Normal mode P28 Timer with delay Off 0 up to 23 hours 0 5 h 1 0 Disable 1 Enable The parameters are critical and must be set according to the selected equipment during commissioning Expert level Parameter Description Factory setting Setting range P53 Maximum VRF fan spee...

Page 9: ...BYPASS i e fresh air will bypass heat recovery unit When P24 1 there is an additional selection available Internal circulation i e no fresh air from outside FAU ECO mode P02 2 P25 1 FAU ECO mode can be enabled via setting P02 2 i e FAU ECO can be selected and P25 1 i e external and internal circulations must be enabled When FAU ECO mode is selected the fresh air fan controller automatically switch...

Page 10: ...the or button to change the time and press the button to confirm the new value The timer runs according to the new value Operating mode setting upon power down If the FAU is disconnected from AC 230 V power and reconnected the unit returns to same operating mode before powering down if P27 0 If P27 1 the unit is in OFF mode If P27 2 the unit resumes Normal mode ON Disposal The device is considered...

Page 11: ...ous development to make it more secure Siemens strongly recommends that updates are applied as soon as they are available and that the latest versions are used 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 othe...

Page 12: ... AC 230 V 5 2 A ECM fan Type Voltage Maximum current Y50 Modulating DC 0 10 V 1 0 5 0 10 0 mA CAUTION If fans must be connected in parallel connect one fan directly for additional fans one relay for each speed Wiring connections Diameter Wire 1 5 mm2 Solid or stranded Ambient conditions and protection classification Classification as per EN 60730 Function of automatic control devices Degree of con...

Page 13: ... and approvals Electromagnetic compatibility For residential commercial and industrial environments EU conformity CE A5W00161028A RCM conformity A5W00161038A REACH Regulation EC No 1907 2006 Registration Evaluation Authorization and Restriction of Chemicals REACH RoHS Directive 2011 65 EU restriction of the use of certain hazardous substances in electronic equipment Environmental compatibility The...

Page 14: ...ed 1 AC 230 V Q2 Output fan speed 2 AC 230 V Q3 Output fan speed 3 AC 230 V Q4 Output bypass circulation Q5 Output external internal circulation Connection diagrams RDF270 3 speed or ECM fan L N AC 230 V operating voltage M Input reference ground for Y50 Q1 Q2 Q3 3 speed fan output relay output Q4 BYPASS output Q5 External internal circulation output Y50 DC 0 10 V output M1 3 speed fan DC 0 10 V f...

Page 15: ...al without BYPASS only Single duct fresh air unit FAU 1 1 0 Operating mode ON OFF Fan speed 1 2 3 Air circulation mode via manual selection 1 External without BYPASS 2 External with BYPASS Dual duct FAU only 1 0 1 Operating mode ON OFF Fan speed 1 2 3 Air circulation mode via manual selection 1 External without BYPASS 2 Internal 1 1 1 Operating mode ON OFF Fan speed 1 2 3 Air circulation mode via ...

Page 16: ...s select other icons like fan On Off users can edit fan speed 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 2 1 1 Operating mode ON FAU ECO OFF Fan speed 1 2 3 Air circulation via manual selection when ON mode is selected 1 External without BYPASS 2 External with BYPASS 3 Intern...

Page 17: ...17 Siemens A6V12068497_en _a Smart Infrastructure 2021 04 16 Dimensions mm ...

Page 18: ... Global Headquarters Theilerstrasse 1a CH 6300 Zug 41 58 724 2424 www siemens com buildingtechnologies Siemens Switzerland Ltd 2021 Technical specifications and availability subject to change without notice Document ID A6V12068497_en _a Edition 2021 04 16 ...