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Carrier 50VT-A manual

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Table of contents for the manual

  • Page 1

    1 50VT - - - A Pe r fo rm a n c e t 14 SEER Sing le - - - P ack aged He at Pump Syste m wit h Puron ® (R - - - 410A) Re frige rant Sing le and Thre e Phase 2 --- 5 N o m i n a l T o n s ( S i z e s 2 4 --- 6 0 ) Installation Instructions NOTE : Read the en tire instru ction m anual b efore starting th e installatio n. NOTE : I nst al le r: Ma ke s[...]

  • Page 2

    2 Rec ogniz e sa fe ty inf orma ti on. This is t he sa fe ty- - a le rt s ymbol . Whe n you se e t his sym bol on the unit and i n ins tr uct ions or m anu- al s, be ale rt to the pote nti al f or per sona l inj ury . Under st and the se si gnal words: DANGER, W ARNING, a nd CAUTION. These words ar e used wit h the sa fet y - -ale rt symbol. DANGER[...]

  • Page 3

    3 A09410 Fig. 2 - - 50VT- - A24- - 30 Unit Di me nsions 50VT - - A[...]

  • Page 4

    4 A09411 Fig. 3 - - 50VT- - A36- - 60 Unit Di me nsions 50VT - - A[...]

  • Page 5

    5 RETURN AIR SMALL BASE UNIT SUPPL Y AIR LARGE BASE UNIT UNIT PLACEMENT ON COMMON CURB L ARGE CURB SMALL OR LARGE BASE UNIT SMALL/COMMON CURB ROOF CURB DET AIL Wood nailer* Roofcurb* Insulation (field supplied) *Provided with roofcurb Cant strip field supplied Roofing material field supplied Flashing field supplied HVAC unit base rails Roofcurb Sea[...]

  • Page 6

    6 A CCESS P ANELS MUST BE IN PLACE WHEN RIGGING. P ANNEA UX D'A CCES DOIT ÊTRE EN PLA CE POUR MANIPULA TION. 50CY502286 2.0 CA UTION - NOTICE TO RIGGERS PRUDENCE - AVIS AUX MANIPULATEUR Use top skid as spreader bar. / Utiliser la palette du haut comme barre de répartition SEAL STRIP MUST BE IN PLACE BEFORE PLACING UNIT ON ROOF CURB DUCTS DET[...]

  • Page 7

    7 Step 5 — Sel ect and I nsta ll Ductwo rk Th e d esign an d installatio n of the duct system must be in accord ance w ith th e standard s of the N FP A fo r installatio n of no n - - resid ence type air cond ition ing an d ven tilating system s, NFP A 90A or res ide nce- - type , NFP A 90B and/or l oca l code s and ordi nanc es . Sel ec t a nd s[...]

  • Page 8

    8 sc rewe d or bolt ed t o duct fl ange s. Use s uita ble gas ket s to ensu re weath er- - tig ht an d airtig ht seal. 4. All u nits m ust hav e field - - su pplied filters or accessory filter rack installed in th e return - - air side of the u nit. Reco mmen ded sizes for filters are sho wn in T able 1. 5. Siz e all ductwor k for maxi mum requi re[...]

  • Page 9

    9 POWER SUPPL Y FIELD-SUPPLIED FUSED DISCONNECT HIGH VOLT AGE POWER LEADS (SEE UNIT WIRING LABEL ) EQUIP GR CONTROL BO X LOW-V OLT AGE POWER LEADS (SEE UNIT WIRING LABEL ) W1 Y G R C WHT(W1) YEL(Y) GRN(G) RED(R) BRN(C) THERMOST A T (TYPICAL) ORN(O) 3-PHASE SHOWN 1-PHASE USES TWO POWER LEADS W2 VIO (W2) O SPLICE BOX DH BLU(DH) 3-Phase Only GRA(Y2) A[...]

  • Page 10

    10 T able 1 – Phys ic al Dat a - - Unit 50VT- -A 50VT - A24 50VT - A30 50VT - A36 50VT - A42 50VT - A48 50VT - A60 Unit S ize 2 2.5 3 3.5 4 5 Sh ipping Weigh t (lb) (kg) 354 161 346 157 426 193 472 214 460 209 506 230 Co mpre sso r Quantity 1 Ty p e Scroll Refri gerant R -410A Re frige rant Quantity ( lb) Quantity ( kg) 11.1 5.0 10.3 4.7 9.9 4.5 [...]

  • Page 11

    11 A11002 Fig. 12 - - Conne cti on Wi ri ng Sche mati cs 208/ 230 - - 1 - - 60 50VT - - A[...]

  • Page 12

    12 A11001 Fig. 12 Cont. - - Ladde r W iri ng Sche mati cs 208/230- - 1- - 60 50VT - - A[...]

  • Page 13

    13 A11006 Fig. 13 - - Connec ti on Wi ri ng Sche mati cs - - 208/230- -3 - -60 50VT - - A[...]

  • Page 14

    14 A11005 Fig. 13 Cont. - - Ladde r W iri ng Sche mati cs - - 208/230- - 3- - 60 50VT - - A[...]

  • Page 15

    15 A10195 Fig. 14 - - Connec ti on Wi ri ng Diagr am 460 - -3 - -60 50VT - - A[...]

  • Page 16

    16 A10195 Fig. 14 Cont. - - Ladde r W iri ng Diagr am 460- - 3- - 60 50VT - - A[...]

  • Page 17

    17 PRE - - ST AR T - - UP FIRE, EXPLOSION, ELECTRI CAL SHOCK AND ENVIRONMENT AL HAZARD Fai lur e t o fol low t his w arni ng coul d re sul t i n per sona l i njury , death o r prop erty dam age. 1. Fol low r ec ogniz ed s af et y pra ct ic es and we ar prot ec ti ve goggle s w hen c hec king or se rvi ci ng re fr ige ra nt s yst em. 2. Re lie ve an[...]

  • Page 18

    18 turn ing b ackw ards, the difference between co mpresso r suction an d dis cha r ge pres sur es m ay be nea r ze ro. Ch eckin g and A dju stin g Refrig erant Charge The re fr ige ra nt sys te m is f ully cha r ged wit h Puron ( R - - 410A) refrigeran t and is tested and factory sealed . NOTE : Adjust me nt of the re fr ige ra nt char ge is not r[...]

  • Page 19

    19 4. Remove the vi nyl ca p off of t he des ir ed s pee d tap wi re (Re fer t o T able 3 for color c oding) for t he norm al c ooling fan speed an d place desired sp eed tap wire on “HIG H” on the i nte rf ac e boar d. 5. R efer to airflow tab les (T ab le 4) to determin e allo wab le speed s for the deh um idificatio n coolin g fan speed . In[...]

  • Page 20

    20 HIGH LOW COM QC5 QC4 QC3 KZ KL 07 09 08 0L0 ALO R13 C8 R11 Q1 Q3 D2 AL2 DCR QCR QC1 C RL 01 G1 G2 Z1 A7 R9 AB A15 C4 C9 C0 QIL Z2 06 04 U1 C3 R4 RL4 JWZ C7 D5 D3 R3 R5 R6 R2 JW5 QCB Y R W 2 Y C W 3W 3W 2 W 2C JW4 P2 JW3 P4 P1 W2 W3 Y2 Y1 Y DH GC R SSTZ -8 P3 SDL 24VAC/R 3AMP CDM/C F1 STD DEHUM A09059 Fig. 16 - - Int er fac e Fan Boar d (I FB) CO[...]

  • Page 21

    21 T a ble 4 – Dry Co il Air Deliv ery CF M* - - Ho rizon tal Discha rge - - Un it 5 0V T - - A2 4 - - 6 0 Unit M otor S peed Wire Co lor Exte rnal Static Pres sure (i n W .C) 0.1 0.2 0.3 0.4 0.5 0. 6 0.7 0.8 0.9 50VT - A24 Low Blue cf m 754 650 536 429 --- --- --- --- --- Med-Low Pin k cfm 851 777 675 591 475 --- --- --- --- Medium 1 Red cf m 94[...]

  • Page 22

    22 T able 7 – Horiz ontal and Do wnf low Disc harge W et Coil Pr es sur e Dr o p (I N. W .C.) UNIT S IZE STANDARD C FM (SC FM) 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 24 0.030 0.037 0.044 0.053 0.063 ---------- - - 30 - - - 0.053 0.063 0.072 0.081 0.105 ------- - - 36 - - - - 0.045 0.050 0.060 0.065 0.075 [...]

  • Page 23

    23 MAINTENANCE T o ensur e c onti nuing hi gh per for manc e, and to mini miz e t he po ssibility of p rematu re equ ipmen t failure, p eriod ic main tenan ce mus t be per for me d on this equi pment . Thi s he at pump uni t shoul d be in spected at least o nce each y ear by a qu alified serv ice perso n. T o troubl es hoot uni t, re fe r t o T abl[...]

  • Page 24

    24 A09412 Fig. 18 - - Cooli ng Chargi ng T able- -Subcool ing 50VT - - A[...]

  • Page 25

    25 OF2 OF1 ON QUIET SHIFT 120 30 60 60 30 90 INTER V AL TIMER OFF P3 DFT O R W 2 Y C T2 C C O DFT T1 Y P1 J1 SPEEDUP Speedup Pins Defrost inter v al DIP s witches Quiet Shift A08020 Fig. 19 - - Defr ost Cont r ol 50VT - - A[...]

  • Page 26

    26 Step 2 — Outdoor Coil, Indoor Coil, an d Conde nsat e Dra in Pan Ins pec t the conde nse r coil , eva pora tor coi l, a nd conde nsa te dr ai n pan at least o nce each y ear . Th e co ils are easily cleaned w hen dry ; th erefore, insp ect and clean the co ils either befo re or after each co olin g seaso n. Rem ove all obst ruc ti ons, i ncl u[...]

  • Page 27

    27 Step 8 — Pressu r e Sw itches Pre ss ure s wit che s ar e prote ct ive de vic es wir ed int o c ontr ol cir cui t (l ow volta ge) . They shut of f compre ssor i f abnor mal ly high or low pressu res are presen t in th e refrigeratio n circu it. Th ese p ressure sw itc hes ar e spec ifi ca ll y des igne d t o oper at e with Pur on ( R - -410A) [...]

  • Page 28

    28 Puron (R- - 410A) Refri gerant Charging Ref er to unit inf orma ti on pla te a nd cha r ging char t. Some R - -410A re fr ige ra nt c yli nder s c onta in a dip t ube t o al low l iqui d re fr ige ra nt to fl ow f rom c yli nder i n upri ght posi ti on. For c ylinde rs e quipped wit h a di p tube , c har ge Pur on unit s wit h cyl inde r in upri[...]

  • Page 29

    29 PURON R (R- -410A) QUICK REFERENC E GUIDE S Pu ron refrig erant o perates at 5 0 - - 70 p ercent h igh er pressu res than R - - 22 . Be su re that serv icing eq uip men t and rep lacement com ponent s a re des igne d to ope ra te wit h Puron S Puron re fr ige ra nt cyl inde rs a re r ose c olor ed. S Rec over y cyl inde r s er vic e pr es sur e [...]

  • Page 30

    30 T able 10 – T r ouble shoot ing Char t SYMPTOM CAUSE REMEDY Comp ressor and c ondenser fan will not star t. Power f ailure Call power c ompany Fuse blown or c ircuit breaker tr ipped Replace fus e or reset c ircuit break er Defectiv e contactor , trans former , or high - - pres sure, lo ss - - o f- -charg e or lo w - -pressur e swit ch Replace[...]

  • Page 31

    31 ST AR T - - UP CHECKLIST (Re move and St or e i n Job File s) I. PRELI MINAR Y INFORMA TION MODEL NO.: SERIAL NO. : DA TE: TECHNICI AN: II. PRE ST A RT - - UP (In sert ch eck ma rk in bo x as each item is comp leted) ( ) VERIFY THA T ALL P ACKING MA TERIALS HA VE BEEN REMOVED FROM UNI T ( ) REMOVE ALL SHIPPING HOLD DOW N BOL TS AND BRACKETS PER [...]

  • Page 32

    32 Copyright 2011 Carrier Corp. S 7310 W . Morris St. S In dianapolis, IN 46231 Edition Date: 01/11 Manufacturer reser v es the right to change, at any time , specifications and designs without notice and without ob ligations. Catal og No: 50VT - - - 09SI Replaces : 50VT - - - 08SI 50VT - - A[...]