Carrier 50CR manual

1 50CR Infinity t Single - - Pac kaged Heat Pump Units Wit h Puro n ® (R- - 410A) Refrigerant Sizes 024- - 060 Installation Instructions NOTE : Read the entire in structio n m anu al before starting th e installatio n. NOTE : Ins ta ll er : Ma ke sur e the Ow ner’ s Ma nual and Ser vic e Instru ction s are left with the u nit after in stallation[...]

2 SAFETY CONSIDERA TIONS Installatio n and serv icing o f this equ ipm ent can be hazar dous due to me cha nic al and el ec t ri ca l c ompone nts . Onl y tr ai ned and qua l if ie d per s onnel s hould ins ta ll , re pa ir , or se rvi ce t his e quipm ent . Untr a ine d per s onnel ca n pe rf orm bas ic ma int ena nc e f unct ions s uc h as cleani[...]

3 Gask et around outer edge Insulated deck pan Gask et around duct S/A R/A HVAC unit base *Gask eting outer flange Flashing field supplied Roofing material field supplied Cant str ip field supplied *Pro vided with roof curb Roof Ductwork field supplied I nsulation (field supplied) Roof curb* W ood nailer* Gask eting inner flange* Scre w (NO TE A) R[...]

4 A B C MAXIMUM ALLOW ABLE DIFFERENCE (in.) A-B B-C A-C 1/4 1/4 1/4 C99065 Fig . 3 - - U nit Lev eling T olera nces OPTIONAL RETURN AIR OPENING OPTIONAL SUPPL Y AIR OPENING EV AP . COIL COND . COIL 2" C99096 Fig. 4 - - Slab Mounti ng Detai l A06114 Fig. 5 - - Corne r W eight s (Lbs .) CORNER WEIGHTS (S MALL CABI NET) CORNER WEIGHTS (L ARGE CAB[...]

5 A05299 Fig. 6 - - 50CR024 - - 036 Unit Di mens i ons 50CR[...]

6 A05300 Fig. 7 - - 50CR042 - - 060 Unit Di mens i ons 50CR[...]

7 Ste p 4—Ri g and Place Unit Rig gin g and h and ling of this equ ipmen t can b e h azar dous for ma ny reason s du e to th e in stallation locatio n (roo fs, elevated structu res, etc.). Only t r ai ned, qual if ie d cr a ne ope ra tor s and gr ound support st a f f shoul d ha ndle and i nst al l t his equi pme nt. Wh en work ing w ith this eq [...]

8 DETAIL A C03017 Fig. 8 - - Riggi ng Br acke t Under U nit Rai n Lip A06113 UNIT S IZE MAX IMUM S HIPP ING WEI GHT Lb Kg 50CR024 372 169 50CR030 372 169 50CR036 395 179 50CR042 462 210 50CR048 485 220 50CR060 521 236 Fig. 9 - - Sugges te d Rigging 50CR 50CR[...]

9 Step 5 —Select an d Insta ll Du ctwo rk Th e desig n an d in stallation of th e d uct sy stem m ust be in acco rdance with th e stand ards of t he NF P A for in stallation of n on - - resid ence typ e air con ditio ning an d ven tilating sy stems, NF P A 90 A o r re s ide nce t ype, NFP A 90B and/or l oc al c odes a nd ordina nc es . Sel e ct a[...]

10 T able 1— Physi cal Dat a - - Unit 50CR UNIT SIZE 024 030 036 042 048 060 NOMINAL CAP ACITY (ton ) 2 2- -1/ 2 3 3- -1/ 2 4 5 OPERA TING WEIGHT (lb.) 350 350 373 440 463 499 Comp ressor Scr oll Refrigerant ( R- - 410A ) Quantit y (lb.) 7.5 8 9.5 10.8 11 . 5 14.0 REFRIGERANT METERING DEV ICE TXV ORIFICE O D (in.) 0.035 (2) 0.035 (2) 0.038 (2) 0.[...]

11 Duct Covers A05301 Fig. 1 1 - - 50CR wit h Duct Cove rs On 1” (25mm) MIN. 2” (50mm) MIN. TRAP OUTLET C99013 Fig. 12 - - Condens ate T r ap Step 7 —Insta ll Electrica l Con nectio ns ELECTRICAL SHOCK HAZARD Fai lur e to fol low this wa rni ng coul d re sul t i n per s onal i njur y or dea t h. The unit c abi ne t must have a n uni nte rr up[...]

12 Ta b l e 2 — E lectrical D ata —50 CR UNIT SIZE V - -P H - -H Z V O LTA G E RANGE CO MPRESSOR OFM FLA IFM FLA ELECT RIC HEAT SING LE POI NT POWER SUPPL Y NOMINAL FLA MCA MOC P MIN MAX RLA LRA kW* 024 208/230- - 1- - 60 187 253 13.5 61.0 0.9 4.3 -- / -- -- / -- 22.1/22.1 30/30 3.8/5 18.1/20.8 44.6/48.1 50/50 5.4/7.2 26.0/30.0 54.6/59.6 60/60 [...]

13 228 =1v 229 =2v 227 =2v LEGEND FLA — Full Load Amps LRA — Locked Rotor Amps MCA -- Minimum Circuit Amps MOCP — Maximum Overcurrent Protection RLA — Rated Load Amps NO TES: 1. In compliance with NEC (National Electrical Code) requirements for multimotor and combination load equipment (refer to NE C Articles 430 and 440), the ov ercurrent [...]

14 7.0 A05304 Fig. 15 - - Wi ri ng Schem ati cs- - 50CR Single Phas e 50CR[...]

15 5.0 A05259 Fig. 16 - - Wi ri ng Schem atic s- -50CR Thre e Phas e 50CR[...]

16 GROUND SCREW (IN SPLICE BO X) BLU YEL BLK GROUND LEAD SINGLE-PHASE CONNECTIONS T O DISCONNECT PER NEC 3-PHASE CONNECTIONS LEGEND NEC – National Electr ical Code Field Wiring Splice Connections NO TE: Use copper wire only . L1 L3 L2 C99057 Fig. 17 - - Line Powe r Conne ct ions A05303 Fig. 18 - - Contr ol Plate The low- -volt age c ir cui t is f[...]

17 SEC-2 SEC-1 F1 5 HK38EA002 ABCD 1 COMM 1 1 OAT HUM C W O Y R HEATER 1 MO TO R STATUS A03169 Fig. 19 - - Det ail of Pr int ed Cir cui t Board PRE- - ST AR T - - UP FIRE, EXPLOSI ON, ELECTRICAL SHOCK HAZARD Fai lur e to fol low this wa rni ng coul d re sul t i n per s onal i njur y or dea t h a nd/or pr oper ty dam age . 1. Fol low r e cogni ze d [...]

18 10 sec onds ). Onc e comm unic at ions wi th Us er I nte rf ac e ar e successfu l, CO MM LE D will b e lit and h eld on . At th e same time, am ber ST A TUS LED wi ll be li t a nd hel d c ontinuous l y on unti l a requ est for o peratin g mo de is receiv ed. Th e ST A TUS L ED w ill b e on any t im e uni t i s i n idl e m ode. If, at any tim e, [...]

19 Whe n the motor is comma nde d to stop, the M OTOR LED wil l be tur ned of f. The MOT OR LED wil l not fl as h to i ndic at e com mun ication s when it is tu rned o f f. Unit cont rol is const ant ly c ommuni ca t ing wi th t he mot or , e ve n whe n the mot or and MOT OR LED ar e of f. I f mot or does not ac knowl edge r eceipt o f co mmu nicat[...]

20 Ch eck system wirin g to be sure the User Interface is po wered and conne c ti ons a re ma de A to A, B t o B, e tc ., a nd wi ri ng is not short ed. Mi s- -wiri ng or short ing of the A BCD comm unic at ions wi ri ng wi ll no t allow su ccessful co mmu nicatio ns. Co rrecting w iring faults will clear the co de an d re - - establish co mmu nica[...]

21 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. 20 - - T ypic al Heat Pump Ope rat ion, Cool ing Mode COMPRESSOR ACCUMULATOR OUTDOOR COIL INDOOR COIL L[...]

22 CHECKING AND ADJ USTING REFRI GERANT CHARGE The r e fr ige ra nt s yst em is f ull y cha r ged wi th Pur on ( R - - 410A) refrigeran t an d is tested and facto ry sealed. NOTE : Adjus t ment of t he re f ri ger ant c har ge is not r equi r ed unle ss the uni t is s us pec te d of not having the prope r R- - 410A char ge. The chargin g label and [...]

23 75 (24) 82 ( 28) 85 (29) 95 (35) 105 (41) Pressure (psig) 5 1 01 52 02 5 Pressure (kPa) 3 6 8 11 14 024 10.3 ( 5.7 ) 9.8 ( 5.4 ) 9. 4 ( 5.2 ) 9 ( 5 ) 8.6 ( 4.7 ) 189 61 56 51 46 41 1303 16 13 11 8 5 030 9.3 ( 5. 2 ) 8. 8 ( 4.9 ) 8.6 ( 4.8 ) 7.8 ( 4.3 ) 7 ( 3.9 ) 196 63 58 53 48 43 1351 17 15 12 9 6 036 17.6 ( 9.8 ) 16.8 ( 9.3 ) 16. 5 ( 9.2 ) 15.[...]

24 Ta b l e 6 — E lectric Hea t Pressur e D r op T ab le Large C abine t: 042- - 060 CFM 1 100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 5kw 0.00 0.00 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10 0.1 1 0.12 7.2 kw 0.00 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10 0.1 1 0.12 0.13 10 kw 0.00 0.00 0.01[...]

25 The mi nimum mai nte na nce re quir eme nt s for this e quipm ent ar e as follo ws: 1. Insp ect air filter(s) each m on th. Clean or rep lace w hen necessary. 2. Ins pe ct i ndoor coi l, dr ai n pan, a nd conde nsa t e dra in each coo ling seaso n for cleanlin ess. Clean w hen n ecessary . 3. Insp ect blo wer mo tor an d wh eel for clean liness [...]

26 Balance Point Worksheet 0 10 20 30 40 50 60 70 -20 -10 0 10 20 3 0 40 50 60 Outdoor Air Temp (Deg F) Building Heat Loss, 1000BTUH Unit Integrated Heating Capacity, 1000BTUH 060 048 042 036 030 024 Based on Entering Indoor Air of 70 Deg. F and Rated CFM C03008 Fig. 25 - - 50CR Balance Poi nt W orks hee t Ste p 6—Ref rige rant Ci r cui t Ins pe [...]

27 ai rf low a cr oss i ndoor coi l, di rt y f ilters, etc. It o pens o n a p ressure drop at a bout 20 psi g. If s yst em pr es sur e is above thi s, s wi tc h shoul d be closed . T o check sw itch: 1. T urn of f al l power t o unit. 2. Dis c onnec t le ads on sw it ch. 3. Apply ohm me te r lea ds a cr oss sw it ch. Y ou shoul d have cont inui ty [...]

28 Step 1 4—S ystem In forma tion LOSS - - OF- - CHARGE SWI TCH Th e loss o f charge switch is a pro tective d evice w ired into co ntro l ci rc ui t (l ow volta ge) . It s huts of f the compr e ss or if abnor mal ly low pressu res are presen t in th e refrigeratio n circuit. NOTE : Becau se these sw itches are attached to refrig eration system u[...]

29 HEA T PUMP WITH PURON REFRIGERA T I ON SECTION QUI CK- - REFERENCE GUIDE Pu ron refrig erant o perates at 50 - - 7 0 p ercent h igher p ressures th an R - - 22 . Be su re that servicin g equ ipmen t and rep lacement co m ponent s ar e des igne d to oper at e w it h Puron. Puron r ef ri ger ant cyl inde rs ar e ros e c olor ed. S Puron r ef r ige[...]

30 Ta b l e 7 — T r ouble shoot ing Char t SYMPTOM CAUSE REMEDY Comp ressor and o ut door fan will no t start Powe r failure Call power c ompany Fuse blown or c ircuit break er tripped Replace fus e or reset c ircuit breaker Defectiv e contactor , trans former , control relay, defrost board, or high - - pres sure, loss - - of - - charge or low - [...]

31 T able 7— T r ouble shoot ing Chart ( Cont ’d) SYMPTOM CAUSE REMEDY Head pressure to o low Low refr i gerant c harge Chec k for leaks, repair and rechar ge Restr iction in l iquid tube Re move re stri cti on Excessive suctio n pressure (Cool) High Heat load Check f or sourc e and el iminate Rever sing valve hung up or leak i ng internally R [...]

32 ST ART -UP CHECKLIST (Remove and Store in Job File) I. Preliminary Information MODEL NO .:_________________________________ SERIAL NO .:__________________________________ D A TE:_______________________________________ TECHNICIAN:_________________________________ II. PRE-ST AR T -UP (Inser t chec kmark in bo x as each item is completed) ( ) VERIF[...]