Trane Zone Controller manuel d'utilisation

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84

Aller à la page of

Un bon manuel d’utilisation

Les règles imposent au revendeur l'obligation de fournir à l'acheteur, avec des marchandises, le manuel d’utilisation Trane Zone Controller. Le manque du manuel d’utilisation ou les informations incorrectes fournies au consommateur sont à la base d'une plainte pour non-conformité du dispositif avec le contrat. Conformément à la loi, l’inclusion du manuel d’utilisation sous une forme autre que le papier est autorisée, ce qui est souvent utilisé récemment, en incluant la forme graphique ou électronique du manuel Trane Zone Controller ou les vidéos d'instruction pour les utilisateurs. La condition est son caractère lisible et compréhensible.

Qu'est ce que le manuel d’utilisation?

Le mot vient du latin "Instructio", à savoir organiser. Ainsi, le manuel d’utilisation Trane Zone Controller décrit les étapes de la procédure. Le but du manuel d’utilisation est d’instruire, de faciliter le démarrage, l'utilisation de l'équipement ou l'exécution des actions spécifiques. Le manuel d’utilisation est une collection d'informations sur l'objet/service, une indice.

Malheureusement, peu d'utilisateurs prennent le temps de lire le manuel d’utilisation, et un bon manuel permet non seulement d’apprendre à connaître un certain nombre de fonctionnalités supplémentaires du dispositif acheté, mais aussi éviter la majorité des défaillances.

Donc, ce qui devrait contenir le manuel parfait?

Tout d'abord, le manuel d’utilisation Trane Zone Controller devrait contenir:
- informations sur les caractéristiques techniques du dispositif Trane Zone Controller
- nom du fabricant et année de fabrication Trane Zone Controller
- instructions d'utilisation, de réglage et d’entretien de l'équipement Trane Zone Controller
- signes de sécurité et attestations confirmant la conformité avec les normes pertinentes

Pourquoi nous ne lisons pas les manuels d’utilisation?

Habituellement, cela est dû au manque de temps et de certitude quant à la fonctionnalité spécifique de l'équipement acheté. Malheureusement, la connexion et le démarrage Trane Zone Controller ne suffisent pas. Le manuel d’utilisation contient un certain nombre de lignes directrices concernant les fonctionnalités spécifiques, la sécurité, les méthodes d'entretien (même les moyens qui doivent être utilisés), les défauts possibles Trane Zone Controller et les moyens de résoudre des problèmes communs lors de l'utilisation. Enfin, le manuel contient les coordonnées du service Trane en l'absence de l'efficacité des solutions proposées. Actuellement, les manuels d’utilisation sous la forme d'animations intéressantes et de vidéos pédagogiques qui sont meilleurs que la brochure, sont très populaires. Ce type de manuel permet à l'utilisateur de voir toute la vidéo d'instruction sans sauter les spécifications et les descriptions techniques compliquées Trane Zone Controller, comme c’est le cas pour la version papier.

Pourquoi lire le manuel d’utilisation?

Tout d'abord, il contient la réponse sur la structure, les possibilités du dispositif Trane Zone Controller, l'utilisation de divers accessoires et une gamme d'informations pour profiter pleinement de toutes les fonctionnalités et commodités.

Après un achat réussi de l’équipement/dispositif, prenez un moment pour vous familiariser avec toutes les parties du manuel d'utilisation Trane Zone Controller. À l'heure actuelle, ils sont soigneusement préparés et traduits pour qu'ils soient non seulement compréhensibles pour les utilisateurs, mais pour qu’ils remplissent leur fonction de base de l'information et d’aide.

Table des matières du manuel d’utilisation

  • Page 1

    CNT -S VX07C-EN Installation and Oper ation T r acer ™ ZN521 Zone Contr oller[...]

  • Page 2

    [...]

  • Page 3

    Installation and Oper ation T r acer ™ ZN521 Zone Contr oller CNT -SVX07C-EN Apr il 20 05[...]

  • Page 4

    CNT -S VX07C-EN[...]

  • Page 5

    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[...]

  • Page 6

    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[...]

  • Page 7

    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 . . . . . . . . .[...]

  • Page 8

    Conte nt s ii CNT -S VX07C-EN Analog inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 GND: Ground terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 ZN: Zone tempera ture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 SET : Local setpoin[...]

  • Page 9

    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) . . . . . . . . . . . . . [...]

  • Page 10

    Conte nt s iv CNT -S VX07C-EN C ha p t e r 7 T r ou bleshooti ng . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 Inde x . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69[...]

  • Page 11

    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 [...]

  • Page 12

    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[...]

  • Page 13

    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[...]

  • Page 14

    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[...]

  • Page 15

    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[...]

  • Page 16

    Chapter 1 Overview and specific ations 6 CNT -S VX07C-EN[...]

  • Page 17

    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[...]

  • Page 18

    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[...]

  • Page 19

    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[...]

  • Page 20

    Chapter 2 General wir i ng infor mation 10 CNT -S VX07C-EN[...]

  • Page 21

    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[...]

  • Page 22

    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[...]

  • Page 23

    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[...]

  • Page 24

    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[...]

  • Page 25

    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[...]

  • Page 26

    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[...]

  • Page 27

    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[...]

  • Page 28

    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[...]

  • Page 29

    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 [...]

  • Page 30

    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[...]

  • Page 31

    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[...]

  • Page 32

    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[...]

  • Page 33

    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[...]

  • Page 34

    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[...]

  • Page 35

    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[...]

  • Page 36

    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[...]

  • Page 37

    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[...]

  • Page 38

    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[...]

  • Page 39

    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[...]

  • Page 40

    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[...]

  • Page 41

    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[...]

  • Page 42

    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[...]

  • Page 43

    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[...]

  • Page 44

    Chapt er 4 Input/output func tions and wir ing for typical applications 34 CNT -SVX07C-EN[...]

  • Page 45

    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[...]

  • Page 46

    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?[...]

  • Page 47

    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 [...]

  • Page 48

    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[...]

  • Page 49

    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[...]

  • Page 50

    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[...]

  • Page 51

    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[...]

  • Page 52

    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 [...]

  • Page 53

    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[...]

  • Page 54

    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[...]

  • Page 55

    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[...]

  • Page 56

    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[...]

  • Page 57

    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 [...]

  • Page 58

    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[...]

  • Page 59

    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[...]

  • Page 60

    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 [...]

  • Page 61

    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[...]

  • Page 62

    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[...]

  • Page 63

    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[...]

  • Page 64

    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 [...]

  • Page 65

    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[...]

  • Page 66

    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[...]

  • Page 67

    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[...]

  • Page 68

    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[...]

  • Page 69

    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[...]

  • Page 70

    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[...]

  • Page 71

    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[...]

  • Page 72

    Chapt er 6 Status indicat ors for oper ation and communicati on 62 CNT -SVX07C-EN[...]

  • Page 73

    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 [...]

  • Page 74

    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[...]

  • Page 75

    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[...]

  • Page 76

    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[...]

  • Page 77

    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[...]

  • Page 78

    Chapt er 7 T roubleshooting 68 CNT -SVX07C-EN[...]

  • Page 79

    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[...]

  • Page 80

    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[...]

  • Page 81

    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[...]

  • Page 82

    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,[...]

  • Page 83

    [...]

  • Page 84

    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[...]