D 151 TEMPERATURE CONTROLLER. RTF 31.. C1 Eng. COSTER. D RTF 31.. C1 Eng DA REV. 01

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1 COSER EPERAURE COROER D RF 31.. C1 Eng DA REV. 1 D DA REV. 1 RF 31.. C1 Eng. Cfigurable temperature ctrol: hree-wire modulating with PI ctrol acti - in e or two stages - proportial in e stage Power supply 23 V~ or 24 V~; DI rail mounting. 1. APPICAIO Ctroller RF 31.. is designed for hot or cold temperature ctrol in the following outlets: DHW producti; heating swimming pool water; underfloor heating panels or fan coils; heating horticultural beds; cvectors VERSIOIS : RF 318 : Power supply 23 V~ RF 314 : Power supply 24 V~ 2. FUCIOS he principal functis of RF 31.. are: emperature ctrol with room, air duct or immersi C 1 kω detectors: at a cstant value: detector (range 4 C); or detector (range 99 C); or detector (range 4 C) and flow detector (range 99 C) Ctrol output: three-wire modulating; - in e or two stages; - proportial in e stage. Adjustment of desired value by means of remote set-point adjuster. 3. DEECORS & REOE COROS o. Descripti ype Sensing element de Data sheet 1 or 2 emperature detector immersi type SIH 1 C 1 kω - 14 or room SAB 1 C 1 kω 111 or air duct SA 1 C 1 kω - 15 or cable type SAF 1 C 1 kω Optial : 1 Set-point adjuster CDB 1 Rt 1

2 D RF 31.. C1 Eng DA REV. 1 COSER 4. ECHICA DAA (factory settings in bold type) Electrical Power supply: RF V~ ± 1% RF V~ ± 1% Frequency 5 6 Hz Csumpti 3 VA Protecti IP4 Radio disturbance VDE875/871 Vibrati test with 2g (DI 4 46) Voltage-free output ctacts: aximum switched voltage 25 V~ aximum switched current 5 (1) A Cstructi standards Italian Electrotech. mmittee CEI Software Class A echanical Case DI 3E module ounting DI 35 rail aterials: Base O ver ABS Permitted ambient temperature: Operating 45 C Storage C Permitted ambient humidity Class F DI 44 Weight.27 kg Setting range (..) = cooling Desired temperature: With detector or + 2(25) 4 C With detector ly 2(25) 99 C Desired temperature adjustment: With detector o + ± 5 C With detector ly ± 1 C in. flow temperature limit 18(1) 99 C ax. flow temperature limit 5(3) 99 C Ctrol output: three-wire modulating - in e or two stages - proportial in e stage Actuator run time 6 ; 9 ; 12 ; 18 s Proportial bands : For detector ±,5 2(1) 4 C For detector ±,5 2(1) 4 C For detector (with + ) ± 1 2(1) 9 C Integral ime (2) 8 min. - differential ±,5 2(1) 4 C - proportial cycle time 5 ; 1 ; 2 ; 3 min. In the presence of electrical disturbances the output ctrols of the ctroller may change status but this will automatically return to normal. 5. OVERA DIESIOS 6. FRO PAE COSER EPERAURE COROER RF PB/ t HEA COO FOW I min max Protective cover for electric compents 2 Base with transformer, relay and terminal blocks 3 Screws for securing base and cover 4 DI rail securing elements 5 DI rail release lever 7. SIIG 1 - hree-figure numeric display and keys for adjusting parameters 3 - and keys for viewing parameters 4 - Ctrol output EDs 5 - Heating/oling ED EDs for data shown display: 6 - Proportial Band or differential 7 - Integral ime 8 - inimum limit range flow temperature 9 - aximum limit range flow temperature he ctroller must be installed in a dry locati that meets the ambient limits given under ECHICA DAA. If installed in spaces classified as Hazardous it must be mounted in a cabinet for electrical appliances cstructed according to the regulatis in force for the type of danger ccerned. he ctroller can be installed a DI rail or in a DI standard enclosure. 8. EECRICA COECIO Proceed as follows : Separate base from cover ount base DI rail and check that it is firmly anchored by the securing elements (5.4) Carry out the wiring as in the diagram and in compliance with the regulatis in force and using : 1.5 mm 2 cables for power supply and relay ctrol outputs. 1 mm 2 for detectors and remote ctrol. ply power (24 V~) and check its presence across terminals 24 and. Remove power, replace cover base/terminal block and secure it with the two screws supplied (5.3). ou are advised not to insert more than two wires in a single terminal of the ctroller and, if necessary, to use an external juncti box. 2

3 COSER D RF 31.. C1 Eng DA REV WIRIG DIAGRAS 9.1 With 3-wire modulating output 9.2 With - output in 2 stages 9.3 With - Proportial output e.g. : with run time of 12 secds e.g. : with cycle time of 5 minutes RF 314 RF 314 RF 314 RF Op Cl RF st 2 nd.3 RF 318 RF 31.. O RF 31.. O RF 31.. O B3 Heat ol B3 Heat ol B3 Heat ol Rt emperature detector C 1 kω with range 4 C emperature detector C 1 kω with range 99 C Rt emperature adjuster Remote seas changer pos. = ctrol excluded with valve closing Or Remote timer switch.1 3-wire modulating ctrol.2 wo-stage - ctrol.3 - ctrol with proportial cycle 9.4 Remote ctrol Always Always Ctrol by timer Seas anging Heating oling Heating oling By timer Or Heat ol Heat Or ol 3

4 D RF 31.. C1 Eng DA REV EXAPES OF ISAAIO 1.1 emperature ctrol by modulating ctrol of valve COSER RF 314 RF 318 RF 31.. O B3 RF 31.. RF 31.. RF 31.. RF 31.. RF 31.. Water temperature detector (...99 C) Ctrol valve 1.2 emperature ctrol by - ctrol of pumps 1.3 Ctrol of return temp. & flow water limits by - command of pump RF 314 RF 318 RF 314 RF 318 RF 31.. O RF 31.. O B3 B3 RF 31.. RF 31.. Water temperature detector ( 99 C) Primary circuit pump Swimming pool return water temp. detector ( 4 C) Swimming pool flow water temp. detector ( 99 C) Primary circuit pump 1.4 Ctrol temperature and limits flow water by modulating ctrol of valve RF 314 RF 318 RF 31.. O B3 RF 31.. RF 31.. RF 31.. Primary temperature detector ( 4 C) Flow water temperature detector ( 99 C) Ctrol valve 4

5 COSER D RF 31.. C1 Eng DA REV Ctrol Room temperature by - ctrol of heat generator in two stages 1.6 Ctrol Room temperature by - proportial ctrol of pump RF 314 RF 314 F F 1 St 2 St RF 318 RF 318 RF 31.. O RF 31.. O B3 B3 RF 31.. RF 31.. Room temperature detector ( 4 C) E wo-stage burner F Safety thermostat Room temperature detector ( 4 C) Plant pump 1.7 Ctrol of minimum boiler temperature for inclusi in sequence 1 2 RF 318 RF RF RF 31.. F1 F2 O O E1 E2 B3 K1 B3 K2 XCC B 2.1 Boiler 1 temperature detector ( 99 C) B 2.2 Boiler 2 temperature detector ( 99 C) 1 Boiler 1 valve 2 Boiler 2 valve K1 Boiler 1 relay K2 Boiler 2 relay 1 Boiler 1 pump 2 Boiler 2 pump K1 1 K1 XCC 62 K K2 2 5

6 D RF 31.. C1 Eng DA REV. 1 COSER 1.8 Ctrol heating or cooling room temperature by modulating ctrol terminal heating/cooling units 1.9 Ctrol mixed air temperature by modulating ctrol mixing dampers RF 314 RF 314 RF 318 RF RF 31.. O + RF 31.. O B3 B3 RF 31.. Risc Raff Risc Raff Room detector ( 4 C) Actuator terminal unit damper Seas switch RF 31.. ixed air detector ( 4 C) Actuator mixing dampers Seas switch 1.1 Ctrol heating or cooling room temperature or discharge air by modulating ctrol 1.11 Ctrol heating room temperature or discharge air by - in two stages RF 314 RF 318 O RF 31.. RF 314 RF 318 O RF B3 B3 RF 31.. Discharge or extract air or room ( 4 C) temp. detector Ctrol valve Seas switch Risc Raff RF 31.. Discharge or extract air or room ( 4 C) temp. detector Electric battery 1.12 Ctrol temperature room cooling or discharge air by - in two stages RF St 2 St RF 318 RF 31.. O B3 RF 31.. Discharge or extract air or Room ( 4 C) temp. detector Refrigerator compressor 6

7 COSER D RF 31.. C1 Eng DA REV Ctrol pre-heating temperature and room heating or discharge air temperature by modulating ctrol.2 RF 314 RF RF RF RF 31.. RF 31.. O O RF 31.. B3 B3.1 Pre-heating temp. detector ( 4 C).2 Discharge or extract air or room temp. detector ( 4 C) 1 Pre-heating ctrol valve 2 Post-heating ctrol valve Ctrol pre-heating temperature and room heating and discharge air limits temperature by modulating ctrol.2 RF 314 RF RF RF RF 31.. RF 31.. O O RF 31.. B3 B3.1 Pre-heating temp. detector ( 4 C).2 Room or extract air temp. detector ( 4 C) Discharge air temp. detector ( 99 C) 1 Pre-heating ctrol valve 2 Post-heating ctrol valve Ctrol of winter pre-heating temperature in an air handling plant F B3 B6 XU 644 B Pre-heating temp. detector ( 4 C) Discharge air temp. detector B3 Room or extract air temp. detector B6 Humidity detector F Frost protecti thermostat Pre-heating ctrol valve 1 Post-heating ctrol valve 2 oling ctrol valve 3 Humidificati unit Seas switch RF 314 F RF 314 O XU 644 B3 B3 B4 B5 B6 B7 G B8 E1 E2 D C C Inv Est H B B3 B6 RH Inv Est 7

8 D RF 31.. C1 Eng DA REV. 1 COSER 11. OPERAIO RF 31.. is a microprocessor-based digital ctroller for the ctrol of temperature measured by: Detector ly (C 1 kω, range 4 C) : room temp., chilled water temp., etc. or Detector ly (C 1 kω, range 99 C) : hot water temp., flow temp., etc. or Room or primary temp. detector and flow temp. detector. with acti : Heating if : or oling if : 11.1 Cfigurati with ctrol output: hree-wire modulating - in e or two stages - proportial in e stage O It is indispensable to cfigure the ctroller according to its use, by means of the dipswitches located the base. Bold type indicates the positi of the dipswitches cursor (actually white). delivery it is programmed for three-wire modulating ctrol with run time of 6 secds. o change the type of ctrol, positi ly the microswitches ccerned as indicated in the table. icro Functi Descripti icro positi 1 ype of ctrol output hree-wire modulating ctrol - ctrol 2 - ctrol type - in 1 or 2 stages (ly if 1 is ) - proportial 3-4 Valve run time 6 secds 3 and 4 (ly if 1 is ) 9 secds 3 and 4 12 secds 3 and 4 18 secds 3 and Half-load cycle time 5 minutes 3 and 4 (ly if 1 and 2 are ) 1 minutes 3 and 4 2 minutes 3 and 4 3 minutes 3 and Ctrol with e detector ( or ) he ctroller compares the desired temperature + (Heating) or (oling) with the temperature t measured by detector or and calculates the value of ctrol output in relati to the difference and the parameters set. hree-wire modulating output with PI mode Heating oling 1-2 : valve opening PB+ PB 3-4 : valve closure 1% 1% % + % + - output in e or two stages with PI mode Heating oling For P mode (pure differential) t + set Integral ime =. t 1-2 : 1 st stage 3-4 : 2 nd stage t 1-2 8

9 COSER D RF 31.. C1 Eng DA REV. 1 - output with Proportial cycle Heating oling 1-2 : ctrol Cycle time 1% PB+ % + t 1% PB % t 11.3 Ctrol with two detectors ( and ) he ctroller compares the desired temperature + (Heating) or (oling) with the temperature t measured by detector and calculates the desired flow temperature f + (Heating) or f- (oling) in relati to the difference and the variati range of the flow temperature. Heating oling f+ () PB+ f () PB f+ max. f max. ( f+ max. f+ min. ) ( f max. f min. ) 2 2 f+ min. f min. + + () () he ctroller compares the desired flow temperature f+ (Heating) or f (oling) with the flow temperature t f measured by detector and calculates the output value of ctrol in relati to the difference and the parameters set. hree-wire modulating output with PI mode Heating oling 1-2 : valve opening 3-4 : valve closure PBf+ PBf 1% 1% % f+ () t () % f () t () - output in e or two stages with PI mode For P mode (pure differential) set Integral ime =. Heating oling 1-2 : 1 st stage 3-4 : 2 nd stage t f+ t f f+ () t () f () t () - output with Proportial cycle Heating oling 1-2 : ctrol Cycle time 1% % PBf+ f+ () t () 1% % PBf f () t () 9

10 D RF 31.. C1 Eng DA REV. 1 COSER 12. SEIG PARAEERS hese parameters must be set after having completed the electrical wiring and carried out the cfigurati of the dipswitches (secti 11.1). he display normally shows the temperature measured by the detector: : if ly cnected or if and cnected. : if ly cnected. When there is a short or open circuit to the detector, or the value measured is outside limits, a dash appears the display. he and keys permit viewing the setting parameters (display flashing). he and keys permit adjusting the parameters shown the display. he type of parameter shown the display is indicated by the lighting up or flashing of the relative ED. If for 6 secds no key is pressed the temperature measured returns to the display. o return to the default (factory set) values switch power to the ctroller and re-power it while keeping pressed the and keys until the display appears Inl and the measured temperature; release the keys Ctrol with detector ly or ly he parameters for Heating and oling are separate: With ED HEA lit. Enter data for Heating. With ED COO lit. Enter data for oling. Display fixed with temperature measured by or. Press : Display flashing with desired temperature. Adjust with or (resoluti.5 C). If remote ctrol Rt cnected and a variati of more than ±5 C is set, the value includes the value of the correcti by the remote ctrol and ED "HEA" or "COO" flashes. Keep pressed until display appears, release the key: Display flashing with Proportial Band PB ED "PB/ t" lit. Adjust with or (resoluti.5 C). Press : Display flashing with Integral ime I ly if odulating or - in 1 or 2 stages. ED "I" lit. Adjust with or (resoluti 1 minute). Press : Display fixed with temperature measured by or. pears, however, if for 6 secds no key is pressed. 1

11 COSER D RF 31.. C1 Eng DA REV Ctrol with detector and detector he parameters for Heating and oling are separate: With HEA ED lit. Enter data for Heating. With COO ED lit. Enter data for oling. Display fixed with temperature measured by. Press : Display flashing with desired temperature (). Adjust with or (resoluti.5 C). If remote ctrol Rt cnected and a variati of more than ±.5 C is set, the value includes the correcti by the remote ctrol and ED "HEA" or "COO" flashes. Press : Display fixed with flow temperature measured by. FOW min and max ED flashing. Keep pressed until display appears, release the key: Display flashing with Integral ime I for detector ED "PB/ t" lit. Adjust with or (resoluti.5 C). Press : Display flashing with Integral ime I for detector, ly if odulating or - in 1 or 2 stages ED "I" lit. Adjust with or (resoluti 1 minute). Press : Display flashing with minimum flow temperature f min which defines the minimum limit of variati range of flow temperature. ED min FOW lit. Adjust with or (resoluti.5 C). Press : Display flashing with maximum flow temperature f max which defines the maximum limit of variati range of flow temperature. ED FOW max flashing. Adjust with or (resoluti.5 C). Press : Display flashing with Proportial Band PB for detector. ED "PB/ t" lit. ED FOW min and max flashing. Adjust with or (resoluti.5 C). Press : Display flashing with Integral ime I for detector, ly if odulating or - in 1 or 2 stages ED "I" lit. ED FOW min and max flashing. Adjust with or (resoluti 1 minute). Press : Display fixed with temperature measured by ; appears, however, if for 6 secds no key is pressed. 11

12 D RF 31.. C1 Eng DA REV. 1 COSER Amendment to data sheet Date Revisi o. Page Secti Details of amendments DA WIRIG DIAGRA he numbers of the terminals shown in the actuators have been eliminated COSER COROI EPERAURA EERGIA COSER ECOOGIE EEROICHE S.p.A. Sede egale: 2132 ilano - Via San G.B. De a Salle, 4/a Head ice & Sales Via San G.B. De a Salle, 4/a el ilano Fax Orders Fax Reg.. Central & Southern Via S. ganesi, 14 el Roma Fax Shipping Via Gen. reboldi, 19/192 el Edolo (BS) el info@coster.eu Web: ISO 91:2 HE IERAIOA CERIFICAIO EWORK Registrati umber: I CSQ - Certificate COEE D