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Carrier 50TCQA - page 1
50TCQA Si ngle Packa ge Rooftop Heat P ump with P uron r (R - - - 410A) Refrig erant S i z e s 0 4 --- 0 7 Installation Instructions NOTE : Read the entire instru ction manual before s tarting the ins tallation T ABLE OF CONTENTS SAFET Y CONSIDE RA TIONS 1 .................... INS T ALLA TION 4 ............................... Step 1 - - Plan fo r U ...
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Carrier 50TCQA - page 2
2 ELECTRIC AL SHOCK HAZARD Failure t o follow thi s warning could c ause personal injury or dea th. Before performi ng service or m ainte nance ope rati ons on unit, always turn off main power switc h to unit a nd install l ockout ta g. Unit may have more than one power switch. ! W ARNING UNIT OP ERA TIO N AND SAFE TY H AZARD Failure t o follow thi ...
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Carrier 50TCQA - page 3
3 Horizontal Connections / Economizer V ertical Connections / Economizer C09001 Fig. 1 - - Unit Dimensional Drawing – 04 — 07 Size Units 50TCQA ...
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Carrier 50TCQA - page 4
4 C09002 Fig. 1 - - Unit Dimensional Drawing – 04 — 07 Size Unit (cont.) INST ALLA TION Jobsite Survey Complete th e follow ing check s bef ore ins tallation. 1. Consult local buildi ng codes a nd the NEC (Nat ional Electrical Code) AN SI/N FP A 70 for special ins talla- tion requ irements . 2. Det ermine uni t loca tion (from proje ct plans) o ...
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Carrier 50TCQA - page 5
5 Roof moun t — Check bui lding code s for weight distribution requirem ents. Unit operat ing weight i s shown in T a ble 1. Ste p 2 — Plan for Seque nce of Unit Ins tallat ion The support me thod used for thi s uni t will di cta te different sequence s for the steps of unit i nstall ation. For exa mple, on curb- - mounted units, some accessori ...
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Carrier 50TCQA - page 6
6 50TCQA04-07 ROOFCURB ACCESSORY CRRFCURB001A02 CRRFCURB002A02 1’ - 2” [356] 2’ - 0” [610] UNIT SIZE C08548 Fig. 3 - - Roof Curb Details 50TCQA ...
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Carrier 50TCQA - page 7
7 A-B 0.5” (13) B-C 1.0” (25) A-C 1.0” (25) MAXIMUM ALL OWABLE DIFFERENCE IN. (MM) C06110 Fig. 4 - - Unit Lev eling T olerances Ste p 5 — Field Fabr icate Duct work Cabinet re turn-ai r static pre ssure (a negative condition) shall not exceed 0.35 in. wg (87 P a) w ith economizer or 0.45 in. wg (1 12 Pa) without e conomi zer . For verti cal ...
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Carrier 50TCQA - page 8
8 P o s i t i o n i n go nC u r b— Po sition unit on roof curb s o that the follow ing clearances are maintained : 1 / 4 in. (6.4 mm) clearance between the roof curb and the base rail inside the front and rear , 0.0 in. clearance betw een the roof cu rb and th e base r ail insid e on the duct en d of th e unit. This w ill r esult in the dis tance ...
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Carrier 50TCQA - page 9
9 T wo P osition Damper H ood Removal and Setup - - Factor y Option 1. T he hood is shipped i n knock - - down form a nd assembled t o a me tal support tray using plastic stretch w rap. Located in the return air compartmen t, the assembly ’ s metal tray is attached to the basep an and also attached to the damper usin g two plas tic tie - - wraps ...
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Carrier 50TCQA - page 10
10 Economize r Hood and T wo- - Position Hood — NOTE : If the pow er exhaus t access ory is to be ins talled on the unit , t he hood shipped with t he unit will not be used and mus t be dis carded. S ave the aluminu m filter for use in the powe r exhaust hood assembl y . 1. The i ndoor co il access panel will be used as the top of the hood. Rem o ...
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Carrier 50TCQA - page 11
11 NOTE: T rap should be deep enough to offset maximum unit static difference. A 4” (102) trap is recommended . MINIMUM PITCH 1” (25mm) PER 10’ (3m) OF LINE BASE RAIL OPEN VENT TO ROOF DRAIN DRAIN PLUG ROOF CURB SEE NOTE 2 ˝ (51) MIN C08022 Fi g. 14 - - Condensate Dr ain P i ping De ta il s All unit s mus t have an ex ternal trap f or conden ...
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Carrier 50TCQA - page 12
12 Un its wit h Factory- - Ins talled D iscon nect — The factory- - installed op tion dis connect sw itch is located in a weathe rproof enclosure loca ted under the m ain control box. The m anual sw itch handle is accessible through an opening in the access panel. Discard the factory tes t leads (see Fig. 16) . Units Without Disconnect Option Uni ...
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Carrier 50TCQA - page 13
13 Mount the weatherproof c over to t he backi ng pla te as sho wn in F ig. 18. Remove two s lot fillers in the bottom of the cove r to permit servic e tool cords to exit t he cover . Check f or full clos ing and latchin g. RECEPTACLE NOT INCLUDED COVER – WHILE-IN-USE WEATHERPROOF BASE PLATE FOR GFCI RECEPTACLE C09022 Fig. 18 - - W eatherproof Co ...
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Carrier 50TCQA - page 14
14 LOW VOL T AGE CONDUIT CONNECTOR HIGH VOL T AGE CONDUIT CONNECTOR C08637 Fig. 20 - - Thru- - Base Con nectio n Fittin gs Field - - suppli ed and fie ld - - i nstalle d liqui dtight conduit connec tors and conduit may be at tac hed to t he conne ctors on the bas epan. Pu ll correctly rated high voltag e and low voltage t hrough appropriat e condui ...
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Carrier 50TCQA - page 15
15 RACEW A Y HOLE IN END P ANEL (HIDDEN) C08027 Fig. 22 - - Fi eld Control Wiring Raceway El ectric H eaters 50TCQ units may be equippe d with fie ld - - insta lle d access ory electric heaters. The heaters a re modular in design, wit h heat er frame s holding open c oil re sistance wires s trung through ceramic in sulators, line - - break limit sw ...
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Carrier 50TCQA - page 16
16 TRACK FLANGE C08135 Fi g. 2 5 - - T y pic al M odul e Insta ll ati on Sing le Poi nt B oxe s and Suppl e me ntar y F uses — When the unit MO CP device value exceeds 60 - - A, unit- - mounted supplementary fuse s are required for each heater circuit. Thes e fuses ar e included in acces sory S ingle Point Boxes , with power distribut ion and fus ...
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Carrier 50TCQA - page 17
17 PremierLi nk t (Facto ry - - O pti on ) — C08199 Fig. 28 - - Premie rLink Controller The Premier Link contr oller (see F ig. 28 ) is compatib le with Car rier Comf ort Netw ork r ( CCN) dev ices. This contro l is designed to allow users the access and ability to change fact ory- - define d set tings, thus e xpanding t he function of t he stand ...
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Carrier 50TCQA - page 18
18 C09014 Fig. 30 - - PremierLin k W iring Sch ematic 50TCQA ...
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Carrier 50TCQA - page 19
19 Outdoor Air T e mpera ture (OA T) Sensor — T he OA T is fact ory- - mounte d in the EconoMi$er2 (FIOP or access ory) . It is a no minal 10k ohm ther mistor attached to an eyelet moun ting ring. EconoMi$er2 — T he PremierLi nk control is used w ith EconoMi$er2 (option or accessory) for outdoor air management. The damper position is contr olle ...
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Carrier 50TCQA - page 20
20 GJ 4 - 1 2 J4- 1 0 J4-8 Y1 Y2 2 R R 4 6 J4-6 J4-4 W2 C 8 10 C SP ACE THERMOST A T PL CTB THERMOST A T W1 TB1 CTB THERMOST A T C08119 Fig. 35 - - Space Th ermostat C onnect ions T ab le 3 – PremierL ink S ensor U sage APP LICATION OUTD OOR AIR TEMPERA TURE SEN SOR RETU RN AIR TEMPERA TURE SEN SOR OUTD OOR AIR EN THA LPY SE NSOR RETU RN AIR EN T ...
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Carrier 50TCQA - page 21
21 T abl e 4 – Space Se nsor M ode TB1 TERMINA L FIELD C ONNEC TION INPU T S IGNAL 1 T 5 5 --- S E N / T 5 6 --- S E N An alog (10k th erm istor) 2 RMTOC C Discrete, 24VAC 3 T 5 5 --- S E N / T 5 6 --- S E N An alog (10k th erm istor) 4 CMPS AF E Discrete, 24VAC 5 T56 - - - SET An alog (10k th erm istor) 6 FSD Discrete, 24VAC 7 L OOP - - - PW R A ...
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Carrier 50TCQA - page 22
22 If the 50 TCQ unit has an eco nomizer s ystem and free - - c ooling opera tion i s required, a sensor repre senting Return A ir T emperature mus t also be connected (field - - supplied and i nstall ed). T his s ensor may be a T - - 55 Space Sensor (see Fig. 31) insta lle d i n the space or in the return du ct, or it may be sens or PNO 33 ZCSEN S ...
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Carrier 50TCQA - page 23
23 8 7 6 5 4 32 1 2 1 HG 24 V AC OR 24 VDC NC ALARM RELA Y CONT ACTS COM NO } 0-10VDC SIG COM 4-20mA + + - + - J3 J4 C08635 Fig. 38 - - Indoor/Outdoor Air Quality (CO 2 )S e n s o r (33ZCSENC O2) - - T ypical Wiring Diagram T o accurately monitor th e quality o f the air in the conditio ned air sp ace, locate the senso r near a return- - air grille ...
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Carrier 50TCQA - page 24
24 On 50TCQ units equippe d with fact ory - - insta lled Smoke Detector (s) , the smoke detector co ntroller implemen ts the unit shutdown t hrough its NC conta ct set c onnect ed to the unit’ s CTB input. The FSD func tion is initiated via the smoke detec tor ’ s Alarm NO contact set . The Premie rLink communi cat es the smoke detector ’ s t ...
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Carrier 50TCQA - page 25
25 At any baud (9600, 19200, 38400 baud), the numbe r of contro llers is limited to 23 9 devices max imum. Bus leng th may not exceed 4000 ft, with no more than 60 total devic es on a ny 1000- - ft sect ion. Opti cal ly isolat ed RS- - 485 repea ters are re quired e very 1000 ft. NOTE : Ca rrier de vice de fault i s 9600 band. COMMU NICA TION BUS W ...
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Carrier 50TCQA - page 26
26 R TU - - MP contr ol system The R TU- - MP c ontrolle r , see Fig. 47, provides expanded stand - - al one operati on of the HV AC system plus connec tion and c ontrol t hrough communi cat ion with several Bui lding Automa tion System s (BAS) through popular thi rd - - part y network systems. T he availa ble network systems a re BACnet MP/TP , Mo ...
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Carrier 50TCQA - page 27
27 C09015 Fig. 49 - - RTU- - MP System Control W iri ng Diagram 50TCQA ...
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Carrier 50TCQA - page 28
28 T abl e 8 – RTU- - M P Cont roll e r Inputs and O utputs POI NT N AME BA Cnet O BJE CT NAME TYPE OF I/O CON NECTI ON PIN NUMB ERS INPU TS Space T em peratu re Sensor sptsens AI (10K T hermistor) J 2 0 --- 1 , 2 Supply Air T emperature sat AI (10K Thermistor) J2 - - - 1, 2 Loca l Outside Air T emper ature Sens or oatsens A I (10K Th ermistor) J ...
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Carrier 50TCQA - page 29
29 The raceway p rovid es the UL r equired clear ance betw een high - - and low- - volta ge wiring. Pass the control wires through the hol e provide d in the c orner post, t hen fee d the wires thorough the raceway to the R TU- - MP . Connect to the wire s to the rem ovable Phoenix c onnectors and t hen reconne ct the conne ctors to the board. Sp a ...
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Carrier 50TCQA - page 30
30 entha lpy sensor and the (SR) te rmina l on the e nthal py controll er . NOTE : The ent halpy control must be set t o the “ D” setting f or dif ferential enthalpy co ntrol to w ork pro perly . Indoor Air Quality (CO 2 sensor) — The indoor air quality sens or accesso ry monito rs sp ace carbon dio xide (CO 2 ) levels. This information is us ...
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Carrier 50TCQA - page 31
31 Remote Occ upancy The remote occup ancy access ory is a field- - installed access ory . This access ory ove rrides t he uno ccupied mode and put s the unit in occupied mode. When in stalling th is access ory , the unit mu st be configur ed for remote occupan cy by settin g MENU → Config → Inputs → input 3, 5, 8, or 9 to Rem ote Occupancy a ...
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Carrier 50TCQA - page 32
32 Loc al Access BACvie w 6 Handhel d The BA Cview 6 is a keypad/di splay inte rface used to connect to th e R TU- - MP to acces s the control inf ormation, read sensor values, and t est the R TU, see F ig. 57. This is an access ory inter face that does no t come with the MP controll er and c an only be used at the unit. Connect the BACview 6 to th ...
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Carrier 50TCQA - page 33
33 T able 9 – LEDs The LEDs on the R TU- - MP s how the s tatus of cer tain functio ns If th is LE D is on ... Statu s is... Power The R TU MP has power Rx The RTU MP is receiving data from the network segment Tx The R TU MP is tran smitting d ata over the n etwork segm ent DO# The digital output is active The Run and Error LEDs indicate contr ol ...
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Carrier 50TCQA - page 34
34 termi nal for c onnect ing to t he cont rolle r . Ea ch sensor has four LEDs (for Power , Trouble, Alarm and Dirty) and a manua l test/re set button (on the le ft - - side of the housing). Duct smoke sensor control ler Fast ener (2X) Cont rol ler co ver Conduit nuts (sup pli ed by instal ler ) Cond uit sup port pl ate Cover ga sket (ordering opt ...
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Carrier 50TCQA - page 35
35 dow nwar d, into the r eturn air s tream. The sampling tube is connec ted via t ubing to t he ret urn a ir sensor t hat i s mounted on a bracket high on the partition bet ween return filter and con troller locatio n. (This s enso r is ship ped in a flat - - mounting locat ion. Installat ion requi res t hat t his sensor be reloc ated to its opera ...
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Carrier 50TCQA - page 36
36 T abl e 10 – Uni t Wire/ M OCP Si z ing Da ta UNIT N O M . V --- P H --- H Z IFM TYPE ELECT RIC HEATER NO C.O. o r UNPWR D C.O . Nom (kW) FLA NO P .E. w/ P .E. (p wrd fr/u nit) MCA MO C P DISC. SIZ E MCA MO C P DISC. SIZ E FLA LRA FLA LRA 50TCQ *04 208/230 - - - 1 - - - 60 STD --- --- 30.7 45 30 121 32.6 50 32 123 3.3/4.4 15.9/18.3 50.6/53.6 6 ...
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Carrier 50TCQA - page 37
37 T abl e 10 — Uni t Wire/ M OCP Si z ing Da ta (c ont ) UNIT N O M . V --- P H --- H Z IFM TYPE ELECT RIC HEATER w/ PWRD C .O. Nom (kW) FLA NO P .E. w/ P .E. (p wrd fr/u nit) MCA MO C P DISC. SIZ E MCA MO C P DISC. SIZ E FLA LRA FLA LRA 50TCQ *04 208/230 - - - 1 - - - 60 STD --- --- 35.5 50 36 126 37.4 50 38 128 3.3/4.4 15.9/18.3 55.4/58.4 60/6 ...
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Carrier 50TCQA - page 38
38 T abl e 10 — Uni t Wire/ M OCP Si z ing Da ta (c ont ) UNIT N O M . V --- P H --- H Z IFM TYPE ELECT RIC HEATER NO C.O. o r UNPWR D C.O . Nom (kW) FLA NO P .E. w/ P .E. (p wrd fr/u nit) MCA MO C P DISC. SIZ E MCA MO C P DISC. SIZ E FLA LRA FLA LRA 50TCQ *05 208/230 - - - 1 - - - 60 STD --- --- 36.2 50 35 128 38.1 50 37 130 3.3/4.4 15.9/18.3 56 ...
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Carrier 50TCQA - page 39
39 T abl e 10 — Uni t Wire/ M OCP Si z ing Da ta (c ont ) UNIT N O M . V --- P H --- H Z IFM TYPE ELECT RIC HEATER w/ PWRD C .O. Nom (kW) FLA NO P .E. w/ P .E. (p wrd fr/u nit) MCA MO C P DISC. SIZ E MCA MO C P DISC. SIZ E FLA LRA FLA LRA 50TCQ *05 208/230 - - - 1 - - - 60 STD --- --- 41.0 60 41 133 42.9 60 43 135 3.3/4.4 15.9/18.3 60.8/63.8 70/8 ...
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Carrier 50TCQA - page 40
40 T abl e 10 — Uni t Wire/ M OCP Si z ing Da ta (c ont ) UNIT N O M . V --- P H --- H Z IFM TYPE ELECT RIC HEATER NO C.O. o r UNPWR D C.O . Nom (kW) FLA NO P .E. w/ P .E. (p wrd fr/u nit) MCA MO C P DISC. SIZ E MCA MO C P DISC. SIZ E FLA LRA FLA LRA 50TCQ *06 208/230 - - - 1 - - - 60 STD --- --- 41.7 60 40 145 43.6 60 43 147 4.9/6.5 23.5/27.1 71 ...
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Carrier 50TCQA - page 41
41 T abl e 10 — Uni t Wire/ M OCP Si z ing Da ta (c ont ) UNIT N O M . V --- P H --- H Z IFM TYPE ELECT RIC HEATER w/ PWRD C .O. Nom (kW) FLA NO P .E. w/ P .E. (p wrd fr/u nit) MCA MO C P DISC. SIZ E MCA MO C P DISC. SIZ E FLA LRA FLA LRA 50TCQ *06 208/230 - - - 1 - - - 60 STD --- --- 46.5 60 46 150 48.4 60 48 152 4.9/6.5 23.5/27.1 75.8/80.3 80/9 ...
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Carrier 50TCQA - page 42
42 T abl e 10 — Uni t Wire/ M OCP Si z ing Da ta (c ont ) UNIT N O M . V --- P H --- H Z IFM TYPE ELECT RIC HEATER NO C.O. o r UNPWR D C.O . Nom (kW) FLA NO P .E. w/ P .E. (p wrd fr/u nit) MCA MO C P DISC. SIZ E MCA MO C P DISC. SIZ E FLA LRA FLA LRA 50TCQ *07 208/230 - - - 3 - - - 60 STD --- --- 30.5 45 30 146 32.4 50 32 148 4.9/6.5 13.6/15.6 47 ...
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Carrier 50TCQA - page 43
43 T abl e 10 — Uni t Wire/ M OCP Si z ing Da ta (c ont ) UNIT N O M . V --- P H --- H Z IFM TYPE ELECT RIC HEATER w/ PWRD C .O. Nom (kW) FLA NO P .E. w/ P .E. (p wrd fr/u nit) MCA MO C P DISC. SIZ E MCA MO C P DISC. SIZ E FLA LRA FLA LRA 50TCQ *07 208/230 - - - 3 - - - 60 STD --- --- 35.3 50 35 151 37.2 50 37 153 4.9/6.5 13.6/15.6 52.3/54.8 60/6 ...
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Carrier 50TCQA - page 44
44 Legend and Notes for T able 10 LEG END: CO - - - Conve nie nt ou tl et DISC - - - Disconn ect FLA - - - Full load amp s IFM - - - Ind oor fan motor LRA - - - Locke d roto r amps MCA - - - Minimum cir cuit a mps MOC P - - - Maximu m over curr ent p ro tection P E --- P o w e r e x h a u s t UNP WR CO - - - Un p ower ed conv en ien t ou tlet NOT E ...
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Carrier 50TCQA - page 45
45 Step 12 — I n stal l Access ori es A vailable access ories includ e: Roof Curb Thru - - base c onnect ion kit (m ust be insta lle d before unit is set on c urb) Manual outside air da mper T wo- - Pos ition motor ized outsid e air damper EconoMi$er IV (with control and inte grate d barometric relie f) EconoMi$e r2 (without control/ for externa ...
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Carrier 50TCQA - page 46
46 50TCQA ...
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Carrier 50TCQA - page 47
47 50TCQA ...
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Carrier 50TCQA - page 48
48 Copyright 2009 Carrier Corp. D 7310 W . Morr i s St. D In dianapolis, IN 46231 Print ed in U.S.A. Edition Date: 02/10/09 Manufacturer reser ves the right to change , at any time, specifications and d esigns without notice and without ob ligations. Catal og No : 50TCQ - - - 01SI Replaces : NEW 50TCQA ...
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