Carrier 48VT(N) manual

1 48VT( N) - - - A Pe r f or m a n c e t 14 SEE R Si ngl e - - - P ack age d HYBR ID HEA T ® Du al F uel S ystem w ith P ur on r (R - - - 410A) R efri ge rant Sing le An d Three 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 ctio n man ual b efo re startin g th e installatio n[...]

2 si gnal words: DANGER, W ARNING, a nd CAUTION. These words ar e used wit h the sa fet y - - al er t symbol. DANGER ide ntifi es the m ost serio u s hazard s wh ich w ill re sul t in se ver e pe rs onal i njur y or d eath . W A RN ING sig n ifies hazard s wh ich cou ld resu lt in per- sona l i njur y or de at h. CAUTI ON i s us ed t o ide nti fy u[...]

3 A09146 Fig. 2 - - 48VT- - A24- - 30 Unit Di mens ions 48VT - - A[...]

4 A09147 Fig. 3 - - 48VT- - A36- - 60 Unit Di mens ions 48VT - - A[...]

5 C B A F D E L ARGE CURB C B A F D E SMALL 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 Sealing Gasket HVAC unit basepan Anchor screw A09090 A09095 A09110 A09111 UNIT S IZ E CATALO G N[...]

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[...]

7 3. Att ac h a cle vis of suf fi ci ent str engt h in the middl e of the st ra ps. Adj ust t he cl evi s l oca ti on to e nsur e unit i s li ft ed l eve l wit h the ground. After the u nit is placed on th e ro o f curb or m ounti ng pad, re move the to p skid . Ste p 6 — Conne ct C ondensa te D rain NOTE : When in stalling c ondens at e dra in c[...]

8 OUT TEE NIPPLE CAP IN C99020 Fig . 7 - - S edim ent T ra p 5. In stall an accessib le, ex ternal, m anu al main shuto ff valv e in gas supply pi pe w ithi n 6 ft (1. 8 m) of he at ing s ec ti on. 6. Inst al l ground- - joi nt union cl ose t o hea ti ng s ec ti on bet we en unit m anua l shut of f a nd exte rna l m anua l mai n s hut- - of f val v[...]

9 T able 1 – Phys ic al Dat a - - Unit 48VT - -A UNIT SIZE 024040 024060 030040 030060 036060 036090 042060 042090 NOMINAL CAP ACITY - - - t on 2 2 2 --- 1 / 2 2 --- 1 / 2 3 3 3 --- 1 / 2 3 --- 1 / 2 SHIPPING WEIGHT - - - lb. (kg) 368 167 368 167 378 171 378 171 450 204 450 204 491 223 491 223 COMPRES SORS Scro ll Qu anti ty 1 REFRIG ERA NT ( R -[...]

10 T able 1 - - Physic al Data - - Uni t 48VT- - A Cont’ d) UNIT S IZE 048090 048115 048130 060090 060115 060130 NOMI NAL C AP A CI TY - - - to n 444555 SHI PPING WEI GH T - - - lb (kg) 513 233 513 233 513 233 543 246 543 246 546 246 COMP RESSORS Sc roll Quantity 1 RE FRIG ER ANT (R - - - 410A) Quantity - - - lb (kg ) 17.0 7.7 17.0 7.7 17.0 7.7 1[...]

11 4. A ll un its mu st hav e field- - su pp lied filters o r accesso ry filter rack in stalled in the return - - air sid e of th e un it. Reco mm end ed sizes for filters are sho wn in T able 1. 5. Siz e al l duc twor k f or maxi mum r equi re d ai rf low ( ei the r hea ti ng or cooli ng) for uni t bei ng ins ta ll ed. A void a brupt du ct size in[...]

12 mor e t han 100 ft ( 30.5 m) from t he uni t (a s m ea sur ed a long the cont rol vol ta ge wir es ), us e no. 16 A WG col or- - c oded, i nsul at ed (35 _ C m inim um ) wires. Loca te t he se ven (e ight on 3 - -phas e) l ow volt age t her most at le ads in 24 volt s pli ce box. Se e Fi g. 10 for conne c tion di agr am . Run the low- -volta ge [...]

13 e. Ensur e w ire s do not t ouch r ef ri ger ant tubi ng or s har p sheet m etal edg es. f. Insp ect coil fins. If d am aged d urin g sh ipp in g and handl ing, ca ref ull y st ra ight en f ins wit h a f in c omb. FIRE, EXPLOSI ON HAZARD Fai lur e t o fol low t his war ning c ould r es ult in pers onal inj ury , death o r pro perty d amag e. Do [...]

14 Pipe Plug Manifold A07679 Fig . 11 - - B u rner A ssemb ly MANIFOLD BURNER BURNER FLAME C99021 Fig . 1 2 - - Mo no po rt B urn er Ch eck Heatin g Contr ol Sta rt a nd c hec k the uni t f or pr oper hea ting c ontr ol oper at ion a s follo ws (see fu rn ace ligh ting in structio ns located on th e insid e of the co n trol access pan el): 1. P lac[...]

15 REGULA TOR COVER SCREW ADJUSTMENT SCREW REGULA TOR SPRING (PROP ANE - WHITE) NA TURAL - SIL VER) GAS PRESSURE REGULA TOR ADJUSTMENT MANIFOLD PRESSURE T AP INLET PRESSURE T AP ON/OFF SWITCH PLASTIC ( A07751 Fig. 13 - - Singl e- - Stage G as V alve If l ar ger a djus tme nts a re r equi re d, cha nge mai n burne r orif ic es fol lowi ng the re c o[...]

16 com pletes th e co ntro l circu it. Th e direct - - spark ign itio n system cyc le s a nd the uni t r et urns to nor ma l hea ting ope ra ti on. T a ble 5 – LED I ndicat ions ST ATUS CO DE LE D INDI CATI ON Norm al Operatio n 2 On No Po wer Hardware Fai lu re Off Limit S witch Fault 2 Flas hes Flam e Sen se Fault 3 Flas hes Four Con secutive L[...]

17 ELECTRICAL SHOCK HAZARD Fai lur e t o fol low t his war ning c ould r es ult i n per sona l inj ury or dea th. Bef ore maki ng any i ndoor wir ing adj ust me nts , s hut of f gas suppl y . Then disc onnec t ele ct ri ca l powe r to the unit a nd ins ta ll l ockout t ag bef ore c ha nging blowe r spe ed. ! W ARNING This uni t has i ndepe ndent f [...]

18 COM LOW HIGH GAS HEA T Q1 R1L C8 RL3 Q3 DCR QCR QC1 G1 G2 A7 D4 D6 C2 OILL R9 AB A15 C4 C9 C0 R4 RL4 C7 R2 R3 R5 R6 QCB Y Y R U C 24VAC JW1 P2 P1 W2 Y2/ Y1/ Y DH GC R SSTZ -8 P3 SDL 24V AC/R CDM/C F1 QC6 QC7 QC4 QC3 K2 K1 D2 RI0 RI2 JM6 RI DL JM5 U1 C3 D3 D5 JW3 JW2 JW4 JW7 3 AMP C A09058 Fig. 14 - - Inte rf ace Fan Board (I FB) T a ble 7 – F [...]

19 T able 10 – Dr y Coil Air Deli ver y* - - Hori zont al and Downf low Dis char ge - - Unit 48VT - -A24 - -60 UNIT HEA TI NG RISE RANGE MOTOR SPEED WIRE COL OR EXTER NAL STATIC PR ESSU RE ( in. W .C.) 0.1 0.2 0.3 0.4 0.5 0. 6 0.7 0.8 0.9 48VT(-,N)A24040 30 - 60 o F (17 - 33 o C) Low Blue CFM 741 638 547 415 --- --- --- --- --- Heating Rise ( o F[...]

20 T able 10 - - Dry Coil Air De live ry* - - Hori zont al and Downf low Di sc harge - - Uni t 48VT - -A24 - - 60 Cont UNIT HEA TI NG RISE RANGE MOTOR SPEED WIRE COL OR EXTER NAL STATIC PR ESSU RE ( in. W .C.) 0.1 0.2 0.3 0.4 0.5 0. 6 0.7 0.8 0.9 48VT(-,N)A30060 25 - 55 o F (14 - 31 o C) Low Blue CFM 741 638 547 415 --- --- --- --- --- Heating Rise[...]

21 T able 10 - - Dry Coil Air De live ry* - - Hori zont al and Downf low Di sc harge - - Uni t 48VT - -A24 - - 60 Cont UNIT HEA TI NG RISE RANGE MOTOR SPEED WIRE COL OR EXTER NAL STATIC PR ESSU RE ( in. W .C.) 0.1 0.2 0.3 0.4 0.5 0. 6 0.7 0.8 0.9 48VT(-,N)A42060 25 - 55 o F (14 - 31 o C) Low 1 Blue CFM 1295 1234 1182 1126 1075 1016 955 898 857 Heat[...]

22 T able 10 - - Dry Coil Air De live ry* - - Hori zont al and Downf low Di sc harge - - Uni t 48VT - -A24 - - 60 Cont UNIT HEA TI NG RISE RANGE MOTOR SPEED WIRE COL OR EXTER NAL STATIC PR ESSU RE ( in. W .C.) 0.1 0.2 0.3 0.4 0.5 0. 6 0.7 0.8 0.9 48VT(-,N)A48115 30 - 60 o F (17 - 33 o C) Low Blue CFM 1445 1389 1341 1281 1236 1189 1139 1072 1027 Hea[...]

23 T able 10 - - Dry Coil Air De live ry* - - Hori zont al and Downf low Di sc harge - - Uni t 48VT - -A24 - - 60 Cont UNIT HEA TI NG RISE RANGE MOTOR SPEED WIRE COL OR EXTER NAL STATIC PR ESSU RE ( in. W .C.) 0.1 0.2 0.3 0.4 0.5 0. 6 0.7 0.8 0.9 48VT(-,N)A60115 30 - 60 o F (17 - 33 o C) Low Blue CFM 1448 1362 1296 1226 1168 1108 1071 998 905 Heati[...]

24 A09068 Fig. 15 - - 208/230- - 1- - 60 Wi ri ng Diagr am, Unit 48VT- -A 48VT - - A[...]

25 A09209 Fig. 16 - - 208/230- - 3- - 60 Wi ri ng Diagr am, Unit 48VT- -A 48VT - - A[...]

26 50VT500173 REV 4.0 A09099 Fig. 17 - - Cooling C hargin g T able- -Subcooli ng 48VT - - A[...]

27 MAINTENANCE T o ensur e c onti nuing hi gh per for manc e and t o mi nimi ze the po ssib ility o f p rematu re equ ipm ent failure, p eriod ic main ten ance mu st be p erform ed o n th is eq uip men t. Th is co mb inatio n hea ti ng/c ooli ng unit shoul d be ins pec te d at le as t onc e each y ear b y a qual if ie d s er vic e per son. T o trou[...]

28 Integrated Gas Unit Controller (IGC) Induced Draft Motor Rollout Switch Mounting Screw Burner Rack Inducer Blower Housing Flue Collector Box Interface Fan Board (IFB) Auto T ransformer fuses used on 460 volt units only . (Hidden) Fan P artition Mounting Bracket A09199 Fig. 18 - - Blowe r Housi ng and Flue Coll ec tor Box Compressor Access Panel [...]

29 BLOWER HOUSING 2 SETSCREWS (HIDDEN) C99085 Fig. 20 - - Rem oval of Motor and Blowe r Whee l A07680 Fig. 21 - - Burne r Rack Re moved FEEDER TUBE STUB TUBE DEFROST THERMOST A T C99029 Fig. 22 - - De fr ost The rmos tat Loc ati on Outdoor Fan UNIT OPERA TION HAZARD Failu re to follow th is caution m ay result in dam age to u nit com ponent s. Ke e[...]

30 If no ref ri ger ant lea ks a re f ound and low c ooli ng pe rf orma nce is susp ected , refer to th e C heck in g and A dju sting R efrigeran t C harge se ct ion. Gas Input The gas i nput does not re quir e che cki ng unle s s impr oper hea ti ng perfo rman ce is su spected . If a p ro blem exists, refer to th e S tart- - U p se ct ion. Ind oor[...]

31 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. 23 - - De fr ost Cont r ol Copel and Scr oll Com pr es sor ( Pur on Re fri ger ant) The c ompr es sor use d in t his produc t i s s pec if ic al ly de si gned t o [...]

32 C99097 Fig. 24 - - Ref ri ger ant Cir cui t COMPRESSOR ACCUMULATOR OUTDOOR COIL INDOOR COIL LCS LEGEND HPS – High Pressure Switch LCS – Loss of Charge Switch Accurater ® Meter ing De vice Arro w indicates direction of flo w TXV in Metering Position Bypass P osition HP S C03011 Fig. 25 - - T ypic al Heat Pump Ope rat ion, Cool ing Mode 48VT [...]

33 COMPRESSOR ACCUMULATOR OUTDOOR COIL INDOOR COIL LCS LEGEND HPS – High Pressure Switch LCS – Loss of Charge Switch Accurater ® Meter ing De vice Arro w indicates direction of flo w TXV in Bypass Position Metering  P osition HP S C03012 Fig . 2 6 - - T yp ica l Hea t Pu mp Op eratio n , Hea ting Mo de UNIT OPERA TION AND SAFETY HAZARD F[...]

34 PURON R (R- -410A) QUICK REFERENC E GUIDE S Pu ro n refrig erant o p erates at 50 - - 7 0 p ercen t hig her p ressu res than R - - 2 2 . Be su re that serv icing eq ui pm ent an d rep lacemen t 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 [...]

35 T able 1 1 – T r ouble shoot ing Gui de - - Cooling or He at Pump He ati ng Mode SYMPTOM CAUS E REMED Y Compr essor an d Outd oor fan will n ot star t. Po w e r Fa il u r e Cal l power co mpan y . Fuse blown o r circu it bre aker tr ipped R e p l a c ef u s eo rr e s e tc i r c u i tb r e a k e r . Def ective th ermo stat, conta ctor , tr ansf[...]

36 T able 12 – T r ouble shoot ing Gui de–He ati ng SYMPTOM CAUSE REMEDY Burners will n ot ign ite W ater in gas line Drain. Ins tall drip leg. No power to fur nace Check pow er supply fus es, wir ing or circ uit breaker. No 24 - - v power s upply to c ontrol circ uit Check tr ansformer. NOT E: Some transformer s hav e internal over - - cur ren[...]

37 ST AR T - - UP CHECKLIST (Re move and Stor e i n Job Fil es ) I. PRELI MINAR Y INFORMA TION MODEL NO.: SERIAL NO. : DA TE: TECHNICI AN: II. PRE ST ART - - U P (Insert check m ark in b o x as each item is com pleted ) ( ) 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 [...]

38 Copyright 2009 Carrier Corp. S 7310 W . Morris St. S In dianapolis, IN 46231 Edition Date: 04/09 Manufacturer reser ves the right to chang e, at any time, spe cific ations and de signs without notice and without obligations. Catal og No: 48VT - - - 05SI Replaces : 48VT - - - 04SI 48VT - - A[...]