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CNT -S VX07C-EN Installation and Oper ation T r acer ™ ZN521 Zone Contr oller ...
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Installation and Oper ation T r acer ™ ZN521 Zone Contr oller CNT -SVX07C-EN Apr il 20 05 ...
CNT -S VX07C-EN ...
CNT -SVX07C-EN T racer ZN521 Zon e Controller Installation and Operation This guide and th e information in it are the property of America n Standard Inc. and m ay not be used or reproduced in w hole or i n p art, without the written permission of American Standard Inc. Trane , a business of American Standard, Inc., has a policy of continuo us prod ...
CNT -S VX07C-EN NO TICE: W arn ings an d Caution s appea r at appr opriate sectio ns th roughou t this manual. Read th ese carefully: W ARNING Indicate s a potentially hazar dous situation, which, if not a voided, could r esult in death or ser ious injury . CA UTION Indicate s a pot e ntially haza rdous sit uation, which, if not av oided, m ...
CNT -SVX07C-EN i Cont ents C ha p t e r 1 Overview a nd sp ecificat ions . . . . . . . . . . . . . . . . . . 1 Product de scription . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Storage environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Dimensions . . . . . . . . . ...
Conte nt s ii CNT -S VX07C-EN Analog inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 GND: Ground terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 ZN: Zone tempera ture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 SET : Local setpoin ...
Contents CNT -SVX07C-EN iii Modulating outdoor/return air dampers . . . . . . . . . . . . . . . . . . . . . . . . . 43 ASHRAE Cycle 1 conforma nce . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 ASHRAE Cycle 2 conforma nce . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Economizing (free cooling) . . . . . . . . . . . . . ...
Conte nt s iv CNT -S VX07C-EN C ha p t e r 7 T r ou bleshooti ng . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 Inde x . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 ...
CNT -SVX07C-EN 1 Chapt e r 1 Ov erview and specifications This guid e provides i nstallation an d configuratio n information f or the Trac er ZN521 zone co ntrolle r , as wel l as a desc riptio n of its ope ratio ns. The overvi ew includes a pro duct description, sp ecifications , and descrip- tions of ancillary products that may be necessary . Pr ...
Chapter 1 Overview and specific ations 2 CNT -S VX07C-EN St or age en vir onment If a Tracer ZN521 zone co ntroller is to be s tored for a su bstantial amo unt of tim e, store it in an indo or envi ronment that me ets th e follow ing requirements: • T emperature: –40° to 185°F (–40° to 85°C ) • Relative humidity: 5–95%, noncon densing ...
Clearan ces CNT -SVX07C-EN 3 Figur e 1 . Plas t ic- cove r model dimensions and clear a nce s Figur e 2. Metal-co ver model dime nsions and clearance s 4 in. (1 02 mm) 5.625 in ( 1 43 mm) 1 in (25 mm) 6.87 5 in (1 75 mm) 1 in (25 mm) 4 in (1 02 mm) 4 in (1 02 mm) 6.31 (1 60 mm) 2 in. (5 1 mm) 5.62 5 in. (1 43 mm) 9 in. (229 mm) 2.25in. (58 mm) 1 in ...
Chapter 1 Overview and specific ations 4 CNT -S VX07C-EN A g ency l isting/compliance CE—Immunity: EN 50082-1:1997; EN 50082-2:1 995 CE—Emiss ions: EN 500 81-1:1992 (C ISPR 22) Clas s B UL and C-UL 916 l i ste d: Energy management system UL 94-5V (UL flammability rati ng for plenum use ) FCC P a rt 15, Class A ASHRAE Cycle 1 & Cycle 2 contr ...
Additional components CNT -SVX07C-EN 5 returns the valve to normall y open or clos ed (dependent on th e desired default po sition). F o r modula ting valve control , use tri-state modul ating actuators w ith or with out a spring return, as requ ired by the ap plication. D amper actuators Damper ac tuators canno t exceed 12 V A draw at 24 V a c . F ...
Chapter 1 Overview and specific ations 6 CNT -S VX07C-EN ...
CNT -SVX07C-EN 7 Chapt e r 2 Gener al wir ing inf or mation This chapte r provides sp ecifications and general in formation about w ir- ing the Tracer ZN521 zone controller . The controller requires wiring for: • Inpu t/output t erminals • AC power to the controller • Communication-link wiring , if the cont roller is to communicate with a bui ...
Chapter 2 General wir i ng infor mation 8 CNT -S VX07C-EN CAUTION Complet e input/output wir ing bef ore a pply ing po wer t o the T racer ZN521 zone con tr o ller . F ailure to do so may cau se damage to the con- tro ller or powe r transf or mer due to inadve rtent connections to po wer circuits . IMP OR T ANT Do not sh ar e 24 V ac between c ontr ...
Communication-link wiring a nd addressing CNT -SVX07C-EN 9 Commun ication-lin k wir ing an d addr e ssing The T racer ZN5 21 zone co ntroller communica tes wi th the BAS an d with other LonT alk controllers by means of a LonT alk communication link. IMP OR T ANT F or important instr uctions on networ k wiring, r efer t o the Tr a c e r S u m - mi t ...
Chapter 2 General wir i ng infor mation 10 CNT -S VX07C-EN ...
CNT -SVX07C-EN 11 Chapt e r 3 Mounting the contr oller This chapter gives recommendat i ons and requiremen ts for mounting a Tracer ZN521 zone control l er . Location r eco mm endation s Trane recommends locating the Tracer ZN5 21 zone controller: • Near the contro l led piec e of equipment to reduce wiring costs • Where it is easily accessible ...
Chapt er 3 Mounting the con troller 12 CNT -S VX07C-EN Mounting r ecommendations Mounting recomme ndations are as follows: CAUTION Mount the T r acer ZN521 z one controller with the co ver on t o av oid the possibility of damaging the circuit board dur ing installation. • Moun t the con troller in any position , other t han wi th the fr ont of th ...
CNT -SVX07C-EN 13 Chapt e r 4 Input/output functions and wir ing f or typical applications This chap ter provide s informatio n about the f unction o f inputs an d out- puts and examp l es of wiring for typical applicati ons. Applicat ions sup- ported b y the Tracer Z N521 zone contro ller are sh own in T able 2. Figures 7 through 17 (pages 23 thro ...
Chapt er 4 Input/output func tions and wir ing for typical applications 14 CNT -S VX07C-EN Binary inpu ts The Tracer ZN521 cont roller includes four binary inputs . Each binary input a ssociates an in put signal o f 0 V a c with open contacts and 24 V ac with clos ed contacts . Y ou can use the Rover se rvice tool to confi gure each of th e input s ...
Binary inputs CNT -SVX07C-EN 15 BI3: Occupancy or gener ic binary inpu t The BI3 binary input can function as either: • The o ccupa ncy i nput • A generic binary input The functi on of occupancy is to sa ve energy by spre ading zone setp oints when the zone is unoccupied . As the occupancy input, BI3 can be used for two related functions . F or ...
Chapt er 4 Input/output func tions and wir ing for typical applications 16 CNT -S VX07C-EN Analog inputs The Tr acer ZN521 con troller includes seven anal og inputs. T able 4 describes thei r functions . Each function is explained in the following para graphs . F or an explan ation of the diag nostics gener ated by e ach ana- log input, see “Diag ...
Analog inputs CNT -SVX07C-EN 17 SET : Local setpoint The SET anal og input functions as the local (hard-wire d) temperature setpoin t input for ap plications u tilizing a Trane zone senso r with a tem- perature setpoint t humbwheel. T he local setp oint input i s configura ble (as ena bled or disable d) using the Rov er service tool. A setpoint val ...
Chapt er 4 Input/output func tions and wir ing for typical applications 18 CNT -SVX07C-EN F or units not configured as cha ngeover units , the entering wat er temper- ature va lue is used for i nformation and t roubleshooti ng only and doe s not affect t he operation of th e controller . AI2: Dischar g e air t emperatur e The AI2 ana log input func ...
Analog inputs CNT -SVX07C-EN 19 Economi zing ( free cooling ) is a f unction whereby o utdoor air is used as a source of co oling before hyd ronic or DX cool ing is used. The T racer ZN521 uses the o utdoor air temperature val ue to determine whe ther economiz- ing is f easible. Economizing is not possible without a v alid outdoo r air temperature ...
Chapt er 4 Input/output func tions and wir ing for typical applications 20 CNT -SVX07C-EN is estab lished and then is no lo nger present, the controller g enerates a Generic AIP F ailure diagnostic. Fo r t h e C O 2 measurement configuration, a 4–20 mA sensor must be hard- wire d to the AI4 termi nal as sh own in Fi gure 5. T he senso r will tr a ...
Binary outputs CNT -SVX07C-EN 21 Binary ou tputs The ZN521 zo ne controller supp orts fan coil, b lower coil, and unit ventila- tor applica tions that ma y include the following compo nents: • Suppl y fan with up to three sp eeds • Hydroni c cooling an d/or heati ng coils wit h two-posi tion or tri- state modulating co ntrol valve • DX coolin ...
Chapt er 4 Input/output func tions and wir ing for typical applications 22 CNT -SVX07C-EN Over r iding binary outpu ts The Tracer ZN521 control ler includes a manual output test and a w ater valve overri de feature. Use the manual output test to manua lly control the outputs i n a defined sequence . F or information , see “Manual output test” o ...
Wiring requirements and optio ns CNT -SVX07C-EN 23 Figur e 7 . T w o-pipe hy dronic-cooling unit Lon T a lk in Ente ring water temper ature Outdoor a ir or generi c temperature 24 V † Exha ust (or fan, mediu m speed) 24 V † Fan, low speed 24 V † Cooling va lve 24 V † Fa n, high speed Low -coil- temperature detect ion (clo sed=no rmal)* Cond ...
Chapt er 4 Input/output func tions and wir ing for typical applications 24 CNT -SVX07C-EN Figur e 8. T wo-pipe hy dronic-he a ting unit in Enteri ng water tempera t u re Outdoor a ir or gene ric tempe rat ur e 24 V † Exhau st (or f an, medi um spee d) 24 V † Fan, low speed 24 V † Fan, high speed Condensa te ov erfl o w (closed=normal )* Occup ...
Wiring requirements and optio ns CNT -SVX07C-EN 25 Figur e 9. T wo-pipe h ydr onic heating/cooling unit wit h auto c hangeo ver LonT alk Enter ing w ater temp erat ure Outdoor air or generi c temperature 24 V † Exhaus t (or fan, medium speed) 24 V † Fan, low speed 24 V † Fan, high speed Low -coil- temperature detect ion (clo sed=no rmal)* Con ...
Chapt er 4 Input/output func tions and wir ing for typical applications 26 CNT -SVX07C-EN Figur e 1 0. F our -pipe hy dronic heating/cooling unit Lon T a lk in Enteri ng w ater temp erat ure Outdoor a ir or generi c temperature 24 V † Exhaus t (or fan, medium speed) 24 V † Fan, low speed 24 V † Fa n, high speed Low -coil-t emperature detectio ...
Wiring requirements and optio ns CNT -SVX07C-EN 27 Figur e 1 1 . Four -pipe heating/cooling unit with aut o chang eover LonT alk in Outdoor a ir or generi c temperature 24 V † Exhaus t (or fan, medi um speed) 24 V † Fa n, lo w speed 24 V † Fan, high speed Lo w -coil- temper atur e detecti on (closed=no rmal)* Condensate ov erflow (closed =nor ...
Chapt er 4 Input/output func tions and wir ing for typical applications 28 CNT -SVX07C-EN Figur e 12. T wo-pipe heating unit with DX cooling LED A B B A AI4 +20 GND AI2 AI3 FA N GND AI1 ZN GND LED SET PIN ZONE SENSOR SERVICE ANALOG INPUTS COMM5 COMM5 AC POWER 24V 24V GND 24V BINARY INPUTS BI3 BI1 BI2 BI4 BINARY OUTPUTS 2 1 4 3 7 6 5 8 9 LED ST A TU ...
Wiring requirements and optio ns CNT -SVX07C-EN 29 Figur e 13. Electr ic heat unit with DX cooling LED A B B A AI4 +20 GND AI2 AI3 FA N GND AI1 ZN GND LED SET PIN ZONE SENSOR SERVICE ANALOG INPUTS COMM5 COMM5 AC POWER 24V 24V GND 24V BINARY INPUTS BI3 BI1 BI2 BI4 BINARY OUTPUTS 2 1 4 3 7 6 5 8 9 LED ST A TUS 10 5 4 3 2 1 On Cancel 6 } LonT alk in E ...
Chapt er 4 Input/output func tions and wir ing for typical applications 30 CNT -SVX07C-EN Figur e 14. Electr ic heat unit LonT alk in Enteri ng water temperature Outdoor air or generi c temperature 24 V † Exhau st 24 V † Fan, high speed Low -coil- temperature detect ion (cl osed=no rmal)* Condens ate ov er flow (closed=norm al)* Occupancy (o pe ...
Wiring requirements and optio ns CNT -SVX07C-EN 31 Figur e 15. T wo-pipe heating unit with f ace-and-b ypass damper LonT alk in Enteri ng w ater temp erat ure Outdoor air or generi c temperature 24 V † Exhaus t (or fan, medium speed) 24 V † Fa n, lo w speed 24 V † Fan, high sp eed Low -coil- temperature det ection (cl osed=no rmal)* Cond ensa ...
Chapt er 4 Input/output func tions and wir ing for typical applications 32 CNT -SVX07C-EN Figur e 16. T wo-pipe heating/cooling unit with face -and-bypass damper LonT alk in Enteri ng water temper ature Outdoor air or generi c temperature 24 V † Exha ust (or fan, mediu m speed) 24 V † Fa n, lo w speed 24 V † Fa n, high speed Lo w-coil-t emper ...
Wiring requirements and optio ns CNT -SVX07C-EN 33 Figur e 17 . Four -pipe h e atin g/cooling unit wit h f ace-and- bypass damper LonT alk in Enteri ng water tem perat ure Outdoor ai r or generic tempera t ure 24 V † Exha ust (or fan, mediu m speed) 24 V † Fan, low speed 24 V † Fa n, high speed Low -coi l-temperature det ection (clo sed=no rm ...
Chapt er 4 Input/output func tions and wir ing for typical applications 34 CNT -SVX07C-EN ...
CNT -SVX07C-EN 35 Chapt e r 5 Sequence of oper ations The Trace r ZN521 zone controlle r will operate to maintain th e zone tem- pera ture setpoi nt. This chapter discusse s many of the op erationa l sequences used by the controlle r to accomplish this goal. P ow er -up sequen ce When 24 V ac po wer is initially applied to t he Tracer ZN521 zone co ...
Chapt er 5 Sequence of oper ations 36 CNT -SVX07C-EN Occupanc y modes Occupancy modes can be controlled by any of the follow i ng: • The state of the local (hard-wired) occupancy binary input BI3 (see “BI3: Occupancy or generic binary input” on page 15) • A timed ove rride request fro m a Trane zone s ensor (see “Timed over- ride control? ...
Timed over ride control CNT -SVX07C-EN 37 The fan will run as confi gured (continuous or cycling ) for occupied mode. The control ler alwa ys uses the stored de fault setpoi nt values (config- urable usi ng the Rover servic e tool), regardless of hard-wired or commu- nicated se tpoint values . In add ition, the outdoo r air damper uses the Economi ...
Chapt er 5 Sequence of oper ations 38 CNT -SVX07C-EN Zone temper a t ur e cont r o l The Tracer ZN 5 21 zone con troller uses two methods of zone tempera ture control: • Cascade zone cont rol—used in th e occupied, occupied b ypass, and occupied sta ndby modes • Simplified zone co nt rol—us ed in the unoccupied mode Cascade zone contr ol Ca ...
Disc har ge air t emperi ng CNT -SVX07C-EN 39 Disc har ge air t emper ing If the cont roller is i n cooling mode , cascade zone control initiates a dis- charge air tem pering f unction when t he disch arge ai r temper ature falls below the Discharge Air Control P oin t L ow Limit (configu rable using the Rover service tool) and all cooling capacity ...
Chapt er 5 Sequence of oper ations 40 CNT -SVX07C-EN In heating and cooling mode, the control ler maintain s the zone tempera- ture based o n the active he ating setpoi nt and the active cool ing setpoint, respec tively . The active hea ting and coolin g setpoints are determined by the occupan cy mode of the controller . F or two-pipe and four -pip ...
Exhaust cont rol CNT -SVX07C-EN 41 fan configur ation. The co ntroller can be conf igured to auto, to a sp ecific fan speed, or t o off . If both a communicated and hard-wired valu e (fan- speed swi tch) is present, t he communicated value ha s priority . When the controller rece ives a communi cated aut o signal (or the associ- ated f an-speed s w ...
Chapt er 5 Sequence of oper ations 42 CNT -SVX07C-EN • The exhau st output is de-e nergized if the outdoor air dampe r position drops 10% below the Exha ust F an/Da mper Ena ble Setpoint. • If the Exhaust F an/Damper Enable Setpoint is les s than 10%, the exhaust output is energize d if the outdoor ai r damper position i s at the setp oint and ...
Modulating outdoor /return air dampers CNT -SVX07C-EN 43 T wo-position v alve operation The T racer ZN5 21 supp orts tw o-posit ion va lves with a single binary out- put for each va lve. Contro llers used for two-pipe a pplications support heating, cooling, or heat /cool changeover with a sing le valve/coi l. Control- ler used for four -pipe applic ...
Chapt er 5 Sequence of oper ations 44 CNT -SVX07C-EN low-spee d fan operatio n. A controlle r can also receive a BAS-communi- cated outdoor air damper minimum position. A BAS-communi cated minimum position setpoin t has priority over all locally conf igured setpoint s . When a communicated minimum position setpoint is n ot p resent, the contro ller ...
Modulating outdoor /return air dampers CNT -SVX07C-EN 45 ASHRAE Cy cle 1 confor mance Tracer ZN521 applicati ons with an outside air damper support ASH RAE Cycle 1 confo rmance. ASHR AE Cycle 1 operati on admits 100% outdoo r air at all times except during a warm-up cyc le. A tri-state modulating damper actu ator is req uired for this operation . F ...
Chapt er 5 Sequence of oper ations 46 CNT -SVX07C-EN T w o-position contr ol of a modulating outdoor ai r damper The Tracer ZN 521 does not suppo rt a two-posit ion outdoor air da mper actu ator . However , a modulatin g outdoor/retu rn air damper actuat or can be used for two-pos ition control. Two-position control can be accomplis hed by not pr o ...
Electric heat operation CNT -SVX07C-EN 47 Electr ic heat oper ation The Tracer ZN 521 supports both singl e-stage and two- stage electr ic heat. Electri c h eat is cycled on and o ff to maintain the dis charge air tempera- ture at the activ e heating setpoint. T wo-pipe changeove r units w ith elec- tric hea t use the electri c h eat only when hot ...
Chapt er 5 Sequence of oper ations 48 CNT -SVX07C-EN P e er -t o-peer communication Tracer ZN 521 zone con trollers have the ability to share da ta with o ther LonT alk -based controllers . Multiple controllers ca n be bo und as pee rs , using the R over ser vice to ol, to s hare: • Setpo int • Zone temperature • Heating/ cooling mode • F a ...
Unit protection strategies CNT -SVX07C-EN 49 Smart r es et The Tr acer ZN521 w ill auto matically restart a unit that is locke d-out as a result of a Low Coil T emp Detection (BI1) diagnostic. Referred to a s “smart reset,” this autom atic rest art will o ccur 30 m inutes af ter the diag - nostic occurs . If the unit is successf ully resta rted ...
Chapt er 5 Sequence of oper ations 50 CNT -SVX07C-EN Filter -maintenance timer The filter -maintenance timer tracks the amount of time (in hours) that the fan is en abled. The Maintenance Require d Timer Setpoint (config - urable using the Rover service t ool) is used to s et the amount of time until mainte nance (typical ly , a filter cha nge) is ...
CNT -SVX07C-EN 51 Chapt e r 6 Stat us indicat ors f or oper ation and communication This chapter describes the operation and communication status indica- tors on the Tracer ZN521 controller , including: • A descripti on of the location and function of th e T est button a nd Ser- vice pin butt on and the light- emittin g diode s (LEDs) located o n ...
Chapt er 6 Status indicat ors for oper ation and communicati on 52 CNT -SVX07C-EN Manual output test The manual output test se quentially turns on and off all binary outputs to verif y their operatio n. The test override s normal operation of t he con- troller , which is su spended while the test is b eing performe d. Use the man ual output test to ...
Manual output test CNT -SVX07C-EN 53 T able 1 1 . Manual output t est sequence fo r non-f ace-and-b ypass configur ations St ep Result BOP1 BOP2 BOP3 BOP4 BOP5 BOP6 BOP7 BOP8 BOP9 BOP1 0 Number of times T est butt on is pr essed F an high 1)F an medium 2)Exhaust Fa n l ow 1) Co ol in g/ cha nge over valve, open 2)T wo-position cooling/ changeover v ...
Chapt er 6 Status indicat ors for oper ation and communicati on 54 CNT -SVX07C-EN 11 : E x i t 5 1 The controller tu rns of f all fan and electri c heat outputs and drives all d ampers and valves closed. 2 The controller attempts to clear all diagnostics. 3 If configured fo r a 3-speed fan, t he medium fan speed output wi ll energize at step 3. If ...
Manual output test CNT -SVX07C-EN 55 T able 12. Manual output t est sequence f or f ace-and-b ypass configuration s (two-position iso lation v alves only) Step Result BOP1 BOP2 BOP3 BOP4 BOP5 BOP6 BOP7 BOP8 BOP9 B O Number of ti mes T e st butto n is pr essed F an high 1)F an medium 2)Exhaust f an Fan l ow T wo -position cool/ cha nge over valve Fa ...
Chapt er 6 Status indicat ors for oper ation and communicati on 56 CNT -SVX07C-EN Service pin but ton The Servi ce pin button is locat ed as shown in Figure 19 on page 51. The Servic e pin butt on is us ed to: • Identif y a de vice (see “Identify ing a device” in the Ro ver Installat ion/ Operation/Pro gramming guide (EMTX- SVX01A-EN) • Add ...
Interp reting LED s CNT -SVX07C-EN 57 The gr een (status) L ED on the Trace r ZN521 controll er (see Figure 19 on page 51) indicates whether the controller has powe r a pplied to it and if the controller is in manual test mode ( see T ab le 14). The yell ow (communication s) LED on the Tracer ZN5 21 controlle r (see Figure 19 on page 51) indicate t ...
Chapt er 6 Status indicat ors for oper ation and communicati on 58 CNT -SVX07C-EN Diagnostics Diagnosti cs are info rmational messa ges that indi cate the operat ional sta- tus of the controller . In response to m ost diag nostics, the controll er attemp ts to protec t the equipment by enabli ng or disabling , or op ening or closi ng, sp ecific out ...
Diagnostics CNT -SVX07C-EN 59 Smart r eset diagnostics After the contro l ler detects the first smart reset diagnostic, the unit w aits 30 minutes before init iating the smart reset functi on. If another diagnos- tic of this type occurs again within 24 hours after an aut omatic clearing , you must clea r the diagnostic manually by usi ng any of the ...
Chapt er 6 Status indicat ors for oper ation and communicati on 60 CNT -SVX07C-EN Space T emperatu r e F ailure Invalid or missing value for z one temperature Fan off Va l v e s closed Outdoor air damper clos ed Fac e and bypass da mper by pa ss DX/elec tric heat of f Baseboard hea t of f Automatic Entering W ater T emp F ailure Inv alid or missing ...
Diagnostics CNT -SVX07C-EN 61 Generic AIP Failure Inv alid or missing value for generic analog input Fan unaffec t e d Va l v e s unaffec t e d Outdoor air damper unaf f ected Fac e and bypass da mper unaf fected DX cooling/e lectric heat unaf fected Baseboard hea t unaf fected Informational Local Fan Mode Failure Invalid or missing fan- speed swit ...
Chapt er 6 Status indicat ors for oper ation and communicati on 62 CNT -SVX07C-EN ...
CNT -SVX07C-EN 63 Chapt e r 7 T r oubleshooting Use T able 17 thro ugh T able 22 to assist you in diag nosin g any of th e fol- lowing operat i ona l problems that you might encounte r with the Tracer ZN521 zone controller: • F an do es not en ergize (T able 17) • V alv es remain clos ed (T able 18 o n page 64) • V alves remain o pen (T able ...
Chapt er 7 T roubleshooting 64 CNT -SVX07C-EN Cycling fa n operation/ continuous The control ler operates the fa n continuously when in the occupied, o ccupied standby , or occupie d bypass mode. Whe n the controller is in th e unoccupied mode, the fan is cycled between high spe ed and off with capacity . Unoccupie d operation Even if the controlle ...
T roubleshooting CNT -SVX07C-EN 65 T abl e 19. V alves r em ain open Pr obable cause Explanation Unit wirin g The wiring between the co ntroller outputs and the valve(s) must be present and cor rect for normal valve operation. R efer to applicable wiring diagram. Fai led end device The valves mus t be c hec k ed to ensure proper operation s. Normal ...
Chapt er 7 T roubleshooting 66 CNT -SVX07C-EN R equested mode of f Y ou can communic ate a desired operati ng mode (suc h as of f, hea t, and cool) to the con- troller . If of f is communicated to the controller , the unit shuts off the c ompressor or elec- tric heat. Fr eeze avo idance When the fa n is off w ith no demand for capacity (0%) and the ...
T roubleshooting CNT -SVX07C-EN 67 Normal operati on The control ler opens and cl oses the outdoo r air damper based on th e controller’ s occu- pancy mo de and fan status. N ormally , the outdoor a ir damper is open d uring occupied mode whe n the fan is runnin g and closed during unoccupied mod e. (See “Mo dulating outdoor/return a ir dampers ...
Chapt er 7 T roubleshooting 68 CNT -SVX07C-EN ...
CNT -SVX07C-EN 39 Index Numer ics 24 V ac wiring, 7 A A C-power wiring, 7 Actuators Damper , 5, 46 V alve, 4 Additional a pplication-depend ent comp onents , 4–5 Addressing LonT alk commun ication, 9 Neuron IDs, 9 Agency lis ting/complianc e, 3 Analog inputs, 16–20 AI1 (Entering w ater temperature), 17 AI2 (Dis c harge air temp erature), 18 AI3 ...
Index 40 CNT -SVX07C-EN Electri c h eat, 1 Fac e-and-bypass dam pers, 1 Outdoor/return air dampers, 1 R over service to ol, 1 T ri-state m odulating dampers, 1 T ri-state m odulating valves , 1 T wo-position valves, 1 Current- sensin g switches, 4 D Dampers Actuators, 5 Exhaust, 41 Fac e-and-bypass, 1, 21, 46 Modulating outdo or/return air , 43, 46 ...
Ind ex CNT -SVX07C-EN 41 Low-coil -temper atur e det ection Diagnostic , 14, 59 Input, 14 M Manual ou tput test, 52 Modulating outdo or/return air dampers, 43 Modulat ing valves Calibration, 42 Oper ation, 4 2 Morning coo l-down, 39 Morning w arm-up, 39 Mounting Cover , 12 Diagram, 12 Locat ion, 11 Operating en vironmen t, 11 Pr ocedures, 12 N Nati ...
Index 42 CNT -SVX07C-EN Switc hing devices Condensat e overflow , 4, 14 Cur rent sensing, 4 Fan st at us , 4 Fr eeze pr otection, 4, 14 Low-coil -temper atur e, 4 Occupa ncy , 4, 15 T T emperature s ensors T able o f options, 5 W ater and d uct, 4 Zone, 4 T ermin ation re sistor s, 9 T est bu tton, 51– 52 Time cl oc k, 15 Timed over ride control, ...
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T rane has a policy of continuous product and product data impro vement and reserves the right to c hange design and sp ecifications without notice. Only qualified techni cians should perform the installa- tion and servicing of equipment refer red to in this publication. Literature Order Number CNT -SVX07C -EN File Number SV -ES-BAS-CNT -SVX-0 7C-E ...
Trane N512のメーカーから受け取ることができるドキュメントは、いくつかのグループに分けられます。その一部は次の通りです:
- #BRANDの図面#
- N512の取扱説明書
- Traneの製品カード
- パンフレット
- またはTrane N512の消費電力シール
それらは全部重要ですが、デバイス使用の観点から最も重要な情報は、Trane N512の取扱説明書に含まれています。
取扱説明書と呼ばれる文書のグループは、Trane N512の取り付け説明書、サービスマニュアル、簡易説明書、またはTrane N512のユーザーマニュアル等、より具体的なカテゴリーに分類されます。ご必要に応じてドキュメントを検索しましょう。私たちのウェブサイトでは、Trane N512の製品を使用するにあたって最も人気のある説明書を閲覧できます。
Trane N512デバイスの取扱説明書はどのようなものですか？
取扱説明書は、ユーザーマニュアル又は単に「マニュアル」とも呼ばれ、ユーザーがTrane N512を使用するのを助ける技術的文書のことです。説明書は通常、全てのTrane N512ユーザーが容易に理解できる文章にて書かれており、その作成者はその分野の専門家です。
Traneの取扱説明書には、基本的な要素が記載されているはずです。その一部は、カバー/タイトルページ、著作権ページ等、比較的重要度の低いものです。ですが、その他の部分には、ユーザーにとって重要な情報が記載されているはずです。
1. Trane N512の説明書の概要と使用方法。説明書にはまず、その閲覧方法に関する手引きが書かれているはずです。そこにははTrane N512の目次に関する情報やよくある質問、最も一般的な問題に関する情報を見つけられるはずです。つまり、それらはユーザーが取扱説明書に最も期待する情報なのです。
2. 目次。Trane N512に関してこのドキュメントで見つけることができる全てのヒントの目次
3. Trane N512デバイスの基本機能を使うにあたってのヒント。 Trane N512のユーザーが使い始めるのを助けてくれるはずです。
4. トラブルシューティング。Trane N512に関する最も重要な問題を診断し、解決するために役立つ体系化された手続き
5. FAQ。よくある質問
6. 連絡先。一人では問題を解決できない場合に、その国におけるTrane N512のメーカー/サービスへの連絡先に関する情報。
Trane N512についてご質問がありますか？
次のフォームを使用してください
見つけた説明書を読んでもTrane N512の問題を解決できない場合、下記のフォームを使用して質問をしましょう。ユーザーのどなたかがTrane N512で同様の問題を抱えていた場合、その解決方法を共有したいと考えるかもしれません。