Manuale d’uso / di manutenzione del prodotto RTU OPEN 11-808-427-01 del fabbricante Carrier
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R R T T U U O O p p e e n n I I n n s s t t a a l l l l a a t t i i o o n n a a n n d d S S t t a a r r t t - - u u p p G G u u i i d d e e CARRIER CORPORATION ©2010 A memb er of the United Technol ogies C orporati on family · Stock s ymbol UTX · Ca talog No.
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RTU Op en i Table of Co ntents Introduction .................................................................................................................................................................. 1 What is t he RT U Open co ntrolle r? .....
Table of Contents ii RT U Open Wir ing a sta tus switch ......................................................................................................................... 31 Wiring specificat ions ...............................................
Table of Contents RTU Op en iii Linka ge ................................................................................................................................................................ 71 I/O Poin ts ..................................
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RTU Op en 1 What is the RTU Ope n con trolle r? The RT U Open co ntroller i s availa ble as an integrat ed comp onent of a Carrier rooftop unit, or a s a field - installed retrofit product. Its in ternal application programming provides optimum rooftop performance and energy efficiency.
Introduction 2 RTU Op en.
RTU Op en 3 Specifi catio ns RTU Open dr iver drv_ rtuopn_std Power 24 Vac ±10%, 50 – 60 Hz 20 VA power consumption (26 VA with BAC view Access port attached) 26 Vdc (25 V min, 30 V max) Single Cla.
Introduction 4 RTU Op en Overall dimen sions A: B: 6- 1/2 in. (16.5 cm) 6- 1/2 in. (16.5 cm) Mounting d imension s 7 mounting holes in various positions Panel depth 2- 1/2 in.
RTU Op en 5 To install th e RTU Open: 1 Mount the controller (page 6). 2 Wire the controller for power (page 7). ○ Using the rooftop equipment control power tr ansformer (page 7). ○ Using an auxiliary control power transfor mer (page 8). 3 Set the controller's address (page 9).
Installat ion 6 RTU Op en To mou nt the RT U Open When you handle t he RTU Open: • Do not contami nate the p rin ted circ uit board with finge rprints , moisture, or any f oreign m ater ial. • Do not touch co mponents or leads. • Handle t he board by it s edges.
RTU Op en 7 Screw the RTU O p en into an enclos ed panel us ing the mo unting slots on t he cover p late. L eave a bout 2 in. ( 5 cm) on each side of t he controller for wiring. To wire the controller for power ○ The RTU Open is powered by a Class 2 power sou rce.
Installat ion 8 RTU Op en 3 If the rooftop equipment has therm ostat con nection t ermina ls, conne ct wiring harnes s J1 wire 1 to R, and J1 wire 3 to C. Alternately, connect the control power transformer wires to J1 connector wires 1 (24 Vac) and 3 (Gnd) .
RTU Op en 9 Option al * Safety chain dev ices, field - installed - n ormally close d. Apply 24 Vac to this terminal (jumper from J1 - 1 to J1 - 9) where no s afety devices are installed.
Installat ion 10 RTU Op en 1 Turn off the RT U Open's power . The controller r eads the address each time you apply power to it. 2 Using the rota ry switches, se t the MSB (SW1) ( 10's ) switch to the tens digit of the address, and set the LSB (SW2) ( 1's ) switc h to the ones digit.
RTU Op en 11 Inst all a B T485 on the first and last controll er on a network se gment t o add bi as and pre vent si gnal distortions due to echoing. See the MS/TP Netw orking and Wiring Inst allation Guide for mo re details.
Installat ion 12 RTU Op en Wiring inpu ts and o utputs RTU O pen Inputs a nd Outp uts Table Channel Number Type Signal Fun ctio n Part Number Wire/ Termina l Number s Input 1 Altern ate Termin als AI .
RTU Op en 13 Channel Number Type Signal Fun ctio n Part Number Wire/ Termina l Number s BO - 8 Altern ate Termin als BO N/A - Relay Power E xhaust N/A J11 N/A - 1 & 3 Legend AI - Analog Input AO - Analog Output BI - Digital Input BO - Digital Output * Safety Chai n Feedback - 24 Vac requi red at this wire to provide Run En abled status.
Installat ion 14 RTU Op en Binary outputs The RT U Open has 8 b inary o utputs. Y ou can co nnect e ach outp ut to a m aximum of 24 Vac/V dc. E ach output is a dry contact rated at 3 A, 24 V maximum , and is no rmally open.
RTU Op en 15 Optional * Safety chain dev ices, field - installed - n ormally close d. Apply 24 Vac to th is terminal (jumper from J1 - 1 to J1 - 9) where no safety devices are instal led.
Installat ion 16 RTU Op en NOTE J4 Analog In puts 1 an d 2 may be set for the following device types: ○ IAQ Sensor ○ OAQ Senso r ○ Space RH Sensor J5 Inputs The ter minals fo r Inputs 3 , 5, an .
RTU Op e n 17 These ter minals are availa ble for use in place o f the flying wir e leads at Molex conn ectors J1 and J2 . Binary i nputs are confi gurable a nd may be used fo r the following function.
Installat ion 18 RTU Op en NOTE Output relay conta cts r ated at 3A , 24V maxim um. I nstall p ilot rel ays requir ed by ap plicatio n. NOTE J20 An alog Inputs 10 and 11 are reserved for a 10k Ohm space temperature senso r with an optional 100k Oh m off set potentiometer u sed for setpoint adjustment.
RTU Op en 19 NOTE For roof top unit i nstalla tion, see t he base unit inst allati on instruc tions. Failure to foll ow this w arning co uld cause personal injury , deat h, and/o r equipme nt dama ge. ELECTRI CAL SHOCK HAZA RD Disconnect all power to the unit before performing maintenance or serv ice.
Installat ion 20 RTU Op en Wir ing a n SPT sensor The RTU Open is connected to a wall - mounted space temperature sensor to monitor room temperature. An i - Vu Open Control System of fers the followin.
RTU Op en 21 Voltage 300 Vac, power limited Listing UL: NEC CL2 P, or b etter To wire the SPT sensor to the controll e r 1 Partial ly cut, t hen bend a nd pull off the outer j acket of the Rnet cabl e(s). Do not nick t he inner i nsulatio n. Strip ab out .
Installat ion 22 RTU Op en Wiring speci fications Cable from sensor to co ntroller: If <100 ft (30.5 meters) 22 AWG, un shielded If >100 ft (30.5 meters) 22 AW G, shielded Maximum l ength: 500 feet (152 meters) To wire the SAT sensor to the c ontrol ler 1 Connect the wiri ng harne ss (OPN - RTUHRN).
RTU Op en 23 To wire a duct sensor to the controlle r 1 Connect the wiri ng harne ss ( Part#OPN - RTUHRN). For d etails, se e To wire inputs and outputs (page 14). 2 Wire the sensor to the wiring harness. See diagram below. 3 Connect to J2 wires 1 and 2.
Installat ion 24 RTU Op en 3 Connect to J2 wires 3 and 4. 4 Verif y your sensor readings. Wir ing a CO2 se nsor Part #33ZCSENCO2 (Display model) Part #33ZCT55CO2 (No display) Part #33ZCT56CO2 (No display) A CO 2 sensor monitor s carbon d ioxide le vels.
RTU Op en 25 Wirin g diagr a m for #33ZCSENCO2: Wiring diagram for #33ZCT55/56CO2: Wir ing a n Outd oor A ir Qu ality sens or Part #33ZCSENCO2 (Display model) An outd oor air q uality (O AQ) sen sor monit ors outs ide air c arbon dioxid e level s.
Installat ion 26 RTU Op en The sensor ha s a rang e of 0 – 20 00 ppm and a line ar 4 - 20 mA output. The CO2 sensor’s power requirements exceed what is ava ilable at J4 - 1 and 4. Provide a d edicated 24 Vac transformer or DC power s upply. Wiring speci fications Cable from sensor to co ntroller: If <100 ft (30.
RTU Op en 27 Wiring speci fications Cable from sensor to co ntroller: If <100 ft (30.5 meters) 22 AWG, un shielded If >100 ft (30.5 meters) 22 AW G, shi elded Maximum l ength: 500 feet (152 meters) To wire the RH sensor to the controll e r 1 Strip the outer jacket from the cable f or at least 4 inches (10.
Installat ion 28 RTU Op en To wire a humidis ta t to the controlle r 1 Strip the outer jacket from the cable f or at least 4 inches (10.2 cm). Strip .25 inch (.6 cm) of insulation from each wire 2 Wire the h umidistat to the c ontroller. See diagr am below.
RTU Op en 29 To wire an enthalpy sw i tch (outdoor air) to the controller An enhalpy s witch is typically m ounted in th e outdoor air inlet. Wirin g diagra m for a fie ld - install ed entha lpy switc h: NOTES • Factory - installed enthalpy switches termina te at J 2 wires 6 (switch input) and 7 (24 V ac).
Installat ion 30 RTU Op en Wiring diagram for f actory - install ed entha lpy switc h: NOTE Fac tory - installed enthalpy switches terminate at J2 wires 6 (switch input) and 7 (24 V ac).
RTU Op en 31 Wirin g diagra m for optio nal entha lpy sen sor moun ted in the r eturn air for diff erentia l enthalpy : Wir ing a stat us sw itch Filter - Part #33CSFS - 01 or field - supplied Fan sta.
Installat ion 32 RTU Op en To wire a status switc h to the controller NOTES • Binary inputs 3 , 5, 8, a nd 9 are confi gurable and may b e used fo r Fan Status , Filter Status , Remote Occupancy, or Door C ont acts , if t hey have not alread y been u sed fo r their de fault f unctions.
RTU Op e n 33 T o wire a compress or safety input to the c ontrol ler NOTES • An isolation relay may be required if the RTU Open is powered separately from the equipment's control power circuit. • Foll ow devic e manufactur er's i nstall ation and op erating instruct ions.
Installat ion 34 RTU Op en To wire an occupa ncy switch or door contact NOTES • Binary Inputs 3, 5, 8, a nd 9 are config urable and m ay be used for Fan Status , Filter Sta tus , Remote Occupancy , or Door C ontacts - provided they have not been utilized f or their default functions.
RTU Op en 35 To start up the RTU Open, you n eed one of the following user interfaces to the controller. The se items let you access the controller i nformation, read sensor val ues, and t est the controller.
Start - up 36 RTU Op en Serv ice Tes t Navigatio n: i- Vu / Field As sistant: BACvi ew: Propert ies > Equipm ent > Conf iguratio n > Service C onfigurat ion > Servic e Test HOME > CONFI.
RTU Op en 37 • Use Power Exh aust Test to activate and deactivate the power ex haust (BO - 8) output. • Use Econ omizer Test to s et the (AO - 1) economizer output to any value from 0 to 100% of configured output (2 - 10 Vdc or 4 - 20 mA). • Analo g Output 2 Test (AO - 2) is currently unused and doe s not r equire te sting.
Start - up 38 RTU Op en Point Name/Desc ript ion Defaul t/Range Input 2 F unction D: – The type of sensor (4 - 20 mA) connected to t erminals J4 – 1, 2, & 3. R: No Sensor No Sensor IAQ Sensor OAQ Sens or Space RH Sensor Input 3 F unction – The usage of Input 3.
RTU Op en 39 Point Name/Desc ript ion Defaul t/Range Input 9 Switch C onfigurati on D: – The normal (d e- energized) state for the set of contacts terminated at Input R: NO NO/NC (norm ally open/normally closed) Space s enso r type D: - The type of local space temperature sensor.
Start - up 40 RTU Op en Point Name/Desc ript ion Defaul t/Range Opti mal Star t D: – The earliest time, prior to occupan cy, at which t he Optimal Star t fun ction may begin to adjust the effective setpoints to achieve th e occupied setpoints by the time schedul ed occupanc y begi ns.
RTU Op en 41 Point Name/Desc ript ion Defaul t/Range Contin uous Occupi ed Exhaust – Configures the exhaust fan control strategy (BO - 8). If Yes , the powe r exhaust runs co ntinuousl y in occupi ed mod e and is off in unoccupi ed mode . If No , the power exhaust is controlled by the D: Power E xhaust Set point.
Sequence of Op eration 42 RTU Op en The RT U Open sup ports vari ous types of constant volume air source configur ations: • Standard heat/cool unit types with up to 2 - stages o f mechanic al cool i.
RTU Op en 43 Suppl y fan The RT U Open sup ply fan m ay be c onfigured for one o f t hree Fan Modes : • Auto - The fan cycles on/off in conjunction with heating or cooling • Contin uous - The fan .
Sequence of Op eration 44 RTU Op en The cooling relays are co ntrolled by the Cooli ng Control PID Loop and Cooli ng Stages Capacity algorithm. They calculate the desired number of stages need ed to s.
RTU Op en 45 Unocc upied F ree Coo ling Unocc Fre e Cool E nable allows rooftop equipment with an economizer damper to utilize outdoor air for free cooling dur ing unocc upied perio ds.
Sequence of Op eration 46 RTU Op en The actual equat ion that t he co ntroller us es to cal culate Optima l Start is nonlinear. An app roxim ation of t he result is s hown below. To change Optim al Start settings: 1 In the navigation tree, select the equipment th at you want to change.
RTU Op en 47 The following conditi ons must be true for the Indoor Air C O2 algorithm to operate: • The system is occupied • The sup ply fan has been started for at l east 30 seconds • The CO2 s.
Sequence of Op eration 48 RTU Op en Heat P ump o peration The RT U Open can c ontrol heat p umps HP O/B and Y1/W1 . HP O/B provid es a sep arate out put (B O - 7) to control a reversing valve. The reversing valve control may be confi gured to b e energized with a call f or heati ng (B) , or energ ized with a call for cooling ( O ).
RTU Op en 49 Dem and Limit The RTU Open may employ a demand limit strategy. Demand limiting in the RTU Open works through setpoint expansio n. The cont roller’s heat ing and c ooling setpoint s are ex panded i n steps or levels. The degree to which the setpoints are expanded is d efined by the Dema nd Lev el Setpoin ts .
Sequence of Op eration 50 RTU Op en Cool ing, heating, and sup ply fan outputs are not interrup ted exc ept where the RT U Open i s configure d for Heat Pum p operati on.
RTU Op en 51 • For a no n - Carrie r Heat Pum p, w hen configu red f or two sta ges of aux heat and two comp ressors, Compressor 1 is replaced by Aux Heat Stage 1 and Compressor 2 is replaced by Aux Heat Stage 2. The compressor output stays on wh en the safety alarm is present.
Sequence of Op eration 52 RTU Op en Functions 1 and 2 are configure d id enticall y. Neit her input may work reli ably a nd downstr eam c ontrol may be affe cted, d epending on the func tion dup licated . The alarm c lear s and norm al cont rol is rest ored w hen the input f unction dup lication i s corr ected .
RTU Op en 53 Linkag e The RTU Open may serve as an air source to a n Open Variable Volume Terminal (VVT) system. When the RTU Open is part of a VVT system and the controllers are wired together to form a network, the controllers may use a method of comm unicatio n known a s Linkag e™.
Sequence of Op eration 54 RTU Op en The system remains in that mode u ntil all zones of that d emand ar e satisfi ed or u ntil a fi xed 30 minute mod e reselect timer causes a forced re - evaluation of the system.
RTU Op en 55 If you have problems mounting, wiring, or addressing the RTU Open, contact Carrier Control Systems Support. Seria l numbe r If you ne ed the RT U Open's seri al number w hen tro uble.
Troublesh ooting 56 RTU Op en If Run LED shows... And Error LED shows... 14 flashes per second Status is.. 14 flashes per second, alternat ing with Run Brownout LED On On Failu re. Try th e following solution s: • Turn the RTU Op en off, th en on. • Format the RTU Open.
RTU Op en 57 FCC Co mplia nce T his equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasona ble protection against harmful interference when the equipment is operated in a co mmercial environm ent.
Appe ndix A: RTU Open Points/Pr operties 58 RTU Op en Status Navigatio n: i- Vu / Field As si stan t: BACvi ew: Propert ies > Equipm ent > Stat us HOME > STATU S Point Name/Desc ript ion Range System Mode R: – The control ler's cur rent operat ing status .
RTU Op en 59 Un it Conf igura tion Navigatio n: i- Vu / Field As sistant: BACvi ew: Propert ies > Equipm ent > Configu ration > Unit C onfigurati on HOME > CONFI G > UNI T Point Name/Desc ript ion Defaul t/Range Fan Mode Options: – The s upply f an's operat ing mode .
Appe ndix A: RTU Open Points/Pr operties 60 RTU Op en Point Name/Desc ript ion Defaul t/Range HP Rev Cyc le Lockout T emp D: – The outdoo r air temp erature at which re v erse cycle heating i s locked out. Req uires t hat the uni t is co nfigured as a H eat Pump.
RTU Op en 61 Point Name/Desc ript ion Defaul t/Range Input 8 F unction – The usage of Input 8. Y ou must al so set Input 8 S witch Confi guration Op tions: . No Funct ion – The input is not used. Entha lpy Switc h – Indicat es ent halpy st atus (hig h or lo w).
Appe ndix A: RTU Open Points/Pr operties 62 RTU Op en i- Vu / Field As sistant: Naviga tion: BACvi ew: Propert ies > Equipm ent > Configu ration > Setpo ints HOME > CONFI G > SETPOINT Select a color band on the setpoint graph to see the current setpoints in th e Hea ting and Cooling fields.
RTU Op en 63 Def ault R ange: - 40 to 245°F Demand L evel Point Name/Desc ript ion Occ upied 1 2 3 Occup ied Coo ling 1 – Yellow The space temperature must be greater t han the Occupi ed Coolin g 1 setpoint for the VVT Mas ter to consider th e zone a cooling caller in a linked system.
Appe ndix A: RTU Open Points/Pr operties 64 RTU Op en Point Name/Desc ript ion Defaul t/Range Heat ing Capa city D: – Used for Optimal Start, this is the rate at which the zone temperature changes w hen the heating sy stem runs at ful l capaci ty to mai ntain d esigned o ccupied he ating setpoint.
RTU Op en 65 Point Name/Desc ript ion Heat ing – (Occupied or Unoccupi ed, depending on mode) The current programmed Heat ing set point adjusted by any offset that may be in effect.
Appe ndix A: RTU Open Points/Pr operties 66 RTU Op en Point Name/Desc ript ion Defaul t/Range Uno ccupied High SPT Alar m Limit – The value that the space temperature must exceed to generate a Space T emperatur e Alarm D: in the unoccupied mod e. There is a fixed hysteresis of 1° F for retur n to normal.
RTU Op en 67 Point Name/Desc ript ion Defaul t/Range Compressor Stages D: – The number of mechanical cooling stages. R: One Stage One Stage Two Sta ges Economiz er Exists – Set to Yes D: to enable economizer control f or units equipped with an economi zer da mper.
Appe ndix A: RTU Open Points/Pr operties 68 RTU Op en Point Name/Desc ript ion Defaul t/Range Compress or 2 Tes t – Enable to test the controller's compressor 2 output. Se rvice Test must be set to Enable D: . R: Disable Disable/E nable Heat 1 T est – Enable to test the controller's heat 1 output.
RTU Op en 69 Point Name/Desc ript ion Defaul t/Range Fire S hutdown – Shutdow n R: indicates t hat a fi re shutd own is in eff ect. Run Enab led/ Shu tdown Compressor Sa fety Status – Tr oubl e R: indicates that th e compressor safety device has tripped.
Appe ndix A: RTU Open Points/Pr operties 70 RTU Op en Ala rms i- Vu / Field Ass istant: Naviga tion: BACvi ew: Propert ies > Equipm ent > Ala rms HOME > ALA RM Point Name/Desc ript ion Range Safety Chain R: – Indicates i f the Safety Chain c ircuit trips.
RTU Op en 71 Point Name/Desc ript ion Range Compre ssor 2 Ru ntime – Indicates if the compressor 1 runtime e xceeds the value of the Compress or 2 Servic e Alarm T imer R: .
Appe ndix A: RTU Open Points/Pr operties 72 RTU Op en i- Vu / Field As sistant: Naviga tion: BACvi ew: Propert ies > I/O Points N/A Point Name/Desc ript ion Space T emp – The value of the Opt ional SPT (Rnet) sens or. Also allows i - Vu & Field A ssistant use rs access to sen sor confi guration.
RTU Op en 73 Sin gle P oint Link age The RTU Open receives data from other Open co ntrollers when they are installed as part of an Open system. The dat a transf er may t ake the f orm of Si ngle Point Linkag e (SPL), w hich is automatic, or Dev ice Ad dress Bin ding, w hich you must c onfigure.
Appe ndix B: Single Point L inkage and Device Ad dress Binding 74 RTU Op en Devic e Address Bi nding As described previou sly, Device Addr ess B inding allows the RTU Open to receive data from other Open control lers whe n they are c onne cted by a network.
Index RTU Op en 75 B BACnet compliance • 57 BACnet port • 11 BT485 • 10 C Compliance • 57 D Duct Air Tempe rature sensor • 22 Duct sensors Duct Air Tempe rature sensor • 22 Supply Air Temp.
Index 76 RTU Op en Operating Mode • 58 Optimal Start • 39, 61 Outdoor Ai r CO2 • 58 Outdoor Ai r Temp Sensor Ala rm • 70 Outdoor Air Temperature • 58 Outdoor C O2 Sensor Value @ma x (ma) •.
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CARRIER COR PORATION ©2010 A memb er of th e Unit ed Tec hno logies C orporat ion fam ily · Sto ck symbol UTX · Catal og No. 11 - 808 - 427 - 01 · 11/19/2010.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Carrier RTU OPEN 11-808-427-01 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Carrier RTU OPEN 11-808-427-01 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Carrier RTU OPEN 11-808-427-01 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Carrier RTU OPEN 11-808-427-01 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Carrier RTU OPEN 11-808-427-01, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Carrier RTU OPEN 11-808-427-01.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Carrier RTU OPEN 11-808-427-01. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Carrier RTU OPEN 11-808-427-01 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
