Instruction/ maintenance manual of the product 50VT-A Carrier
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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.
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.
3 A09410 Fig. 2 - - 50VT- - A24- - 30 Unit Di me nsions 50VT - - A.
4 A09411 Fig. 3 - - 50VT- - A36- - 60 Unit Di me nsions 50VT - - A.
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.
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.
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 .
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.
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) GR.
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.
11 A11002 Fig. 12 - - Conne cti on Wi ri ng Sche mati cs 208/ 230 - - 1 - - 60 50VT - - A.
12 A11001 Fig. 12 Cont. - - Ladde r W iri ng Sche mati cs 208/230- - 1- - 60 50VT - - A.
13 A11006 Fig. 13 - - Connec ti on Wi ri ng Sche mati cs - - 208/230- -3 - -60 50VT - - A.
14 A11005 Fig. 13 Cont. - - Ladde r W iri ng Sche mati cs - - 208/230- - 3- - 60 50VT - - A.
15 A10195 Fig. 14 - - Connec ti on Wi ri ng Diagr am 460 - -3 - -60 50VT - - A.
16 A10195 Fig. 14 Cont. - - Ladde r W iri ng Diagr am 460- - 3- - 60 50VT - - A.
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.
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 .
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 .
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.
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 .
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.
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.
24 A09412 Fig. 18 - - Cooli ng Chargi ng T able- -Subcool ing 50VT - - A.
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.
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.
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.
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.
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.
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 .
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 .
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.
An important point after buying a device Carrier 50VT-A (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Carrier 50VT-A yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Carrier 50VT-A - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Carrier 50VT-A you will learn all the available features of the product, as well as information on its operation. The information that you get Carrier 50VT-A will certainly help you make a decision on the purchase.
If you already are a holder of Carrier 50VT-A, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Carrier 50VT-A.
However, one of the most important roles played by the user manual is to help in solving problems with Carrier 50VT-A. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Carrier 50VT-A along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
