Carrier 48TC*D08 manual

48TC*D08 - - - D14 Nominal 7.5 to 12.5 T ons Wi t h Pu ro n  (R - - - 410A) Refrigerant Se rvice and Mainte nance Ins truct ions T ABLE OF CONTENTS SAFET Y CONSIDE RA TIONS 1 .................... UNIT ARRANGE ME NT AND ACCESS 2 ........... SUPPL Y F AN (BLOW ER ) SE CTI ON 4 .............. COOLI NG 6 .................................... PURON R [...]

2 FIRE, EXPL OSIO N HAZ ARD Failure t o follow thi s warning could result in personal inj ury , dea th and/or prope rty dam age. Refer to the User ’ s Informa tion Manual provide d with this un it for more details. Do not s tore or use gasoline or ot her flam mable vapor s and liqu ids in the vicinity o f this or any o ther applian ce. What to do[...]

3 BLOWER ACCESS PANEL FLUE OPENING CONTROL BOX COMPRESSOR C08450 Fig. 2 - - T yp ical Acces s Pan el Loca tion ( Fron t) Rout ine Ma inte nance These ite ms should be part of a routine mai ntenanc e program, to be chec ked eve ry month or t wo, until a specif ic sched ule for each can be identified fo r this installatio n: Quarterl y Inspection (an[...]

4 22 3/8 (569 mm) HOOD DIVIDER OUTSIDE AIR CLEANABLE ALUMINUM FILTER BAROMETRIC RELIEF FILTER CAP FILTER C08634 Fig. 3 - - Filter In sta llation T o remov e the filter , open the spring clip s. Re - - install the filter by placin g the frame in its track, then closin g the spri ng c li ps. Ma nual Out side Ai r Ho od Scree n This inlet scr een is s[...]

5 T o rep lace the belt: 1. Use a belt w ith s ame section ty pe or s imilar size. D o not s ubs titute a “FHP ” type belt. When installing th e new be lt, do not use a tool (screwdriver or pry- - ba r) to force the bel t over the pull ey flanges, t his will stress the belt and caus e a reduction in belt life. 2. Loosen the m otor mounti ng pla[...]

6 Changing fa n wheel speed by c hanging pul leys: The horsepower rati ng of the bel t is pri maril y dict ate d by t he pitch diameter of the smaller pulley in the drive sys tem (typica lly t he motor pul ley i n these unit s). Do not instal l a replacement motor pulley with a smaller pitch diameter than provided on the original fa ctory pul ley .[...]

7 Rou tin e Clean ing o f NOV A TION C ond ens er Coil Surf ace s T o cle an the NOV A T ION condenser coil , chem ica ls are NOT to be used; only water i s approve d as the cl eaning solution. O nly cl ean pot able wat er is aut horize d for clea ning NOV A TION condensers. Carefull y remove any foreig n objects or debr is attached to the coil fac[...]

8 5. Finned surfaces should rem ain wet with cleaning solution for 10 mi nutes. 6. Ensur e surfaces are not allowed to dr y befor e rins ing. Reapp ly cleaner as needed to en sure 10- - minute satur- ation is achieved. 7. Thoroghly rinse all surf aces w ith low velocity clean water using downward rinsing mot ion of wate r s pray nozzle. P rotect fi[...]

9 1/2-20 UNF RH 30 0.596 .47 5/8” HEX SEA T CORE WASHE R DEPRESSOR P ER AR I 720 +.0 1 /- .0 35 FROM FACE OF BODY 7/16- 20 UNF RH O-RING 45 torqued into the seat. Appropriate handling i s required to not scratch or dent the surface. 1/2" HEX This surface provides a metal to metal seal when o o (Part No . EC39EZ067) C08453 Fig. 9 - - Co reMax[...]

10 COOLING C HARGING CHAR TS C08669 Fig. 10 - - Cooling Charging Charts (D08) 48TC[...]

11 COOLING C HARGING CHAR TS C08670 Fig. 1 1 - - Cooling Charging Charts (D 12) 48TC[...]

12 COOLING C HARGING CHAR TS C09151 Fig. 12 - - Coolin g Ch arging C hart s (D 14 - - Circu it A) 48TC[...]

13 COOLING C HARGING CHAR TS C09152 Fig. 13 - - Coolin g Ch arging C hart s (D 14 - - Circu it B) 48TC[...]

14 T ab le 1 – Coolin g Service A nalys is PROBLEM CAUSE REMED Y Compressor a nd Conden ser Fa n W i ll Not S ta r t. Pow er f a il u re . Cal l power c ompany . F use bl own o r ci rcui t brea ker t rippe d. Replace fuse or reset circui t breaker . Defectiv e ther mostat, conta ctor , tran sfor mer , or control r elay . Repl ace c ompo nent. Ins[...]

15 Compr essors Lu bricatio n Compressors are charged with the c orrect a mount of oil a t the factor y . UNIT DAMAG E HAZ ARD Failur e to follow th is caution may res ult in d amage to compone nts. The compre ssor is in a Puron R refrige rant system and uses a pol yolester (POE) oil. This oi l is e xtrem ely hygroscopic, me aning it absorbs water [...]

16 CONVENIENCE OUTLETS ELECTRIC AL OPERA TION HAZARD Failure t o follow thi s warning c ould result i n personal injury or dea th. Units with c onvenie nce outlet ci rcuit s may use multiple disconnects. Check convenience outlet for power status before opening unit for service . Locate its disconnec t switch, i f appropriat e, and ope n it. T ag- -[...]

17 Ma inte nance Perio dically test the G FCI recep tacle by pr ess ing th e TEST button on the face of th e receptacle. This should cause th e internal cir cuit of the r eceptacle to trip an d o pen the receptacle. Ch eck for proper grounding wires and pow er line ph asing if the G FCI receptacle does not trip as required. Press the RESET but ton [...]

18 The sens or uses a pro cess called dif ferential sen sing to prevent gra dual environm enta l changes from triggering false ala rms. A rapid change in e nvironment al condit ions, such as s moke from a fi re, ca uses the sensor to s igna l an alarm state b ut dus t and deb ris accumu lated over time does not. Duct smo ke sensor See Detail A Exha[...]

19 Return Air Sampling T ube C08129 Fig. 22 - - Return Air Samp ling T ube Location Compl etin g In stal lati on of Return Ai r Smoke Sens or: SCREWS EXHAUST TUBE FLEXIBLE EXTENSION TUBE SAMPLING C08126 Fi g. 23 - - Ret urn Air De te ct or Shi pping Po sit ion 1. Unscrew the two screws hol ding the Return Air Sensor detect or plat e. (See Fig. 23. [...]

20 A E F C D B C08246 Fig. 25 - - T ypical S mok e Detect or Sys tem W iring Highlight C: 24 - - v power signal via ORN lead is remove d at Smoke Dete ctor input on L CTB; all unit operat ions cease immedi ately . Premier Link t and R TU - - MP Controls: Unit operat ing functions (fan, cool ing and hea ting) are te rmina ted as described above . In[...]

21 OP ERA TIO NAL TEST H AZARD Failure to fol low t his caut ion m ay result in pe rsonnel and aut hority conc ern. This test places the duct detector into the alarm state. Dis connect all au xiliary equ ipment fr om the contr oller before performi ng the test. If the duc t dete ctor is connec ted to a fi re al arm system, noti fy the proper author[...]

22 SD- - TRK4 Rem ote Al ar m T est P roc edur e 1. Tur n the key switch to the RESET/TES T pos ition for seven seconds. 2. V erify that th e tes t/reset s tation’ s Alarm LED turns on. 3. Reset the sensor by turning the ke y switch to t he RESET/TES T position for two seconds . 4. V erify that th e tes t/reset s tation’ s Alarm LED turns off. [...]

23 INDICA TORS Norm al State The smoke dete ctor operates in the normal s ta te in the absence of any trouble conditions and when its sensing chambe r is free of smoke . In the normal state , the Power LED on both the sensor and t he cont roller a re on and all other L EDs are off. Alarm State The smoke dete ctor ent ers the alarm state when the am[...]

24 T ab le 3 – Detecto r Ind icators CON TROL OR IN DI CATO R DESCRI PTIO N Magnetic test /reset switch R esets the sen sor wh en it is in th e alar m or tr oub le state. Activ ates or tests th e sen sor wh en it is in the n ormal sta te. Alarm LED Indi cate s the sens or is in the al arm stat e. Tr o u b le L E D Indi cate s the s ensor i s in t[...]

25 Conde nser F an Mot or Pr otection The conde nser fa n motor is int ernall y protect ed aga inst overtem perat ure. Cont r ol Cir cuit, 24- - V The cont rol circui t is protect ed against overcurrent conditi ons by a circ uit bre aker mounted on control trans former TRA N. Reset is manual. GAS H EA TING SYS TEM Gen eral The heat ex changer s yst[...]

26 48TCDD08 onl y C08238 All 48T C*D except DD08 C08239 Fi g. 31 - - L P L ow P ressure Swi tc h (Insta ll ed) PNK W2 TST A T GRA BRN IGC J2-12 IGC J2-1 1 BRN C NO MGV C LP LPS C08285 Fi g. 3 2 - - LP Suppl y Li ne Low Pressure Swi tc h W ir i ng This switch al so prevents opera tion when t he propane tank level is low w hich can res ult in gas w i[...]

27 HEATER TUBE ASSEMBLY SEAL STRIPS, SPONGE RUBBER REGULATOR GASKET REGULATOR RETAINER WIND CAP ASSEMBLY (SHOWN INVERTED, AS SHIPPED) BURNER ASSEMBLY INDUCER FAN-MOTOR ASSEMBLY SUPPORT INSULATION ASSEMBLY C08227 Fig. 33 - - He at Exchanger Assembly Bu rn ers an d Ig ni ters EQUIP M ENT DAMAG E H AZARD Failur e to follow th is caution may result in [...]

28 MANIFOLD PRESSURE TAP GAS VALVE BURNERS C09154 Fig. 35 - - Burner T ray De tails 6. Remove igniter wir es and sens or wires at the Integ- rated G as U nit Con troller ( IGC) . (See F ig. 36 .) 7. Remove the 2 s crews that attach the b urner rack to the ves tibule plate. (S ee Fig . 33.) 8. Slide the burner tra y out of the unit. (See Fig. 35. ) [...]

29 125,000/90,000 BTUH INPUT 180,000/120,000 BTUH INPUT 240,000/180,000 BTUH INPUT 250,000/200,000 BTUH INPUT C08447 Fig. 37 - - Spark Adjus tment (08 - - 14) Bu rn er Ign i tion Unit is equipped w ith a direct spark ignitio n 100% lockout sys tem. Integ rated Gas Unit Co ntroller (IGC ) is located in the control box. (See Fig. 36. ) T he IGC conta[...]

30 C08240 C08241 48TCDD08 onl y All 48T C*D except DD08 Fig. 38 - - Gas V alve Orif ice Re placem ent This unit uses orific e type LH32RFnnn (where nnn indicates orifice refer ence size). When rep lacing unit orifices , order the neces sar y parts via Car rier RCD . S ee T able 1 1 for availab le orifice sizes . See T able 12 for orifice sizes fo r[...]

31 Red LED-Status C08452 Fig. 39 - - Integrated G as Contr ol (IGC) Boar d T abl e 10 – IG C Conne ct ions TERMIN AL LABEL POINT D ESC RIPT ION SENSOR LOCA TION TYPE OF I/O CON NE CTI ON PIN N UMB ER INPU TS RT , C In pu t pow er f rom T RA N 1 control box 24 VAC — SS Speed sensor gas sect ion analo g input J1, 1- 3 FS, T1 Fla me se nso r gas s[...]

32 T ab le 1 1 – Orifice Sizes ORIFICE DRILL S IZE CARRIE R PA R T N U MB ER DRIL L DIA. (in.) #30 LH 32RF 129 0.1285 1/8 LH 32RF 125 0.1250 #31 LH 32RF 120 0.1200 #32 LH 32RF 116 0.1160 #33 LH 32RF 113 0.1130 #34 LH 32RF 111 0.1110 #35 LH 32RF 110 0.1100 #36 LH 32RF 105 0.1065 #37 LH 32RF 104 0.1040 #38 LH 32RF 102 0.1015 #39 LH 32RF 103 0.0995 [...]

33 Minim um Heatin g En tering A ir T emperat ur e When oper ating on fir st stage heating, the minimum temperatur e of air entering th e dimpled heat exchang er is 50 _ F cont inuous and 45 _ F intermittent for standar d heat exchan gers and 40 _ F continuous and 35 _ F intermittent for stain less s teel heat exchan gers . T o operate at lower mix[...]

34 T able 14 – IGC Board LED Alarm Codes LED FLASH CODE DESCR IPTI ON AC TION TAKEN BY CON TR OL RESET M ETHO D PRO BA BLE CA USE On Normal Op eration — — — Off Hardw are Failure No gas he ati ng. — Loss of pow er to the I GC. Check 5 a mp fuse on IGC, power t o unit, 24V circ uit b r e a k e r, t r a n s f o r m e r, a n d w i r i n g t [...]

35 CONDENSER COIL SER VICE Conde nse r Coil The conde nser coil is ne w NO V A T ION Heat Exc hanger T echnol ogy . This is a n all - - aluminum constructi on with louvere d fins over singl e - - de pth crosstubes. The crosstubes have multiple small pa s sages t hrough which the refrig erant pas ses fr om header to header on each end. Tubes and fin[...]

36 PR EMIERLINK t CONTROL The Premier Link contr oller (see F ig. 41 ) is co mpatible with Car rier Comf ort Netw ork r (C CN) devices . This contro l is designed to allow users the access and ability to change fact ory - - defined settings, t hus expa nding the function of t he standa rd unit c ontrol board. CCN service access too ls include Syste[...]

37 C08665 Fig. 43 - - T ypical Pr emierLink t Sys tem Co ntr ol W iring D iagram 48TC[...]

38 T ab le 15 – T hermis tor R esist ance v s T emp eratu re V al ues for Spa ce T e mpe r ature Se nsor , Supply Air T emp eratu re S ens or , and Outd oor A ir T emp eratur e Senso r TEMP (C) TEMP (F) RE SIST ANCE (Oh ms) --- 4 0 --- 4 0 335,651 --- 3 5 --- 3 1 242,195 --- 3 0 --- 2 2 176,683 --- 2 5 --- 1 3 130,243 --- 2 0 --- 4 96,974 --- 1 5[...]

39 T ab le 16 – Prem ierLink S ens or Us age 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 THA LPY SE NSOR Differen tial Dry Bulb Te m p e r a t u r e w i t h PremierLink (PremierL ink requires 4- - -2 0 m A A c t u a t o r ) I n c l u d e d --- CRTE M PSN001A 00 R e[...]

40 T able 18 – Thermostat Mode TB1 TERMINA L F IELD C ONNEC TION INPU T S IGNAL 1 RAT S EN An alog (10k th erm istor) 2 G Discrete, 24VAC 3 RAT S EN An alog (10k th erm istor) 4 Y1 Discrete, 24VAC 5 6 Y2 Discrete, 24VAC 7 L OOP - - - PWR Analog, 24VDC 8 W1 Discrete, 24VAC 9 I A Q --- S E N A n a l o g , 4 --- 2 0 m A 10 W2 Discrete, 24VAC 11 I A [...]

41 Configure the unit for Therm ostat Mode — Conne ct t o the CCN bus using a CCN service t ool and naviga te to Premier Link Con figuratio n s creen for Operatin g Mode. Defau lt setting is S enso r Mod e (value 1 ). Change the value t o 0 to reconfigure t he controlle r for T hermostat Mode. When the Premie rLink is configured for Thermostat Mo[...]

42 The CO 2 sensors are all fa ctory set for a range of 0 t o 2000 ppm and a l inea r mA output of 4 to 20. Refer t o the instr uctions s upplied with the CO 2 s ensor for electrical requirem ents and t ermina l loc ations. See Fig. 51 for typica l CO 2 sensor wiring schemat ic. C07134 Fig. 51 - - Indoor/Outdoor A ir Q uality (CO 2 )S e n s o r (33[...]

43 Refer to the Ro oftop P remierLink Ins tallation, Start- Up, and Configuration Instruct ions (Form 33CS - - 58SI), Premier Link Installation , Start- - up, and Con figur ation Instructions, for deta iled c onfigurat ion informa tion. Smoke Detec tor/Fire Shutdown (FSD) — This funct ion is avail able only when Prem ierLi nk is configure d for ([...]

44 Power Exhaust J8-3 15 C TB1 THERMOST A T PL PEC TA N GRA LCTB C08120 Fig. 58 - - PremierLin k t Power Exhaus t Output Con nect ion Space Rel ative Humi dity Sensor — The RH sensor is not used w ith 48TC models at this time. CCN Commu nication Bus — The PremierLink co ntroller connec ts to t he bus in a da isy c hain a rrangem ent. Negative p[...]

45 C07129 Fig. 60 - - R TU- - MP Multi - - Pr otocol Control Board 48TC[...]

46 C09163 Fig. 61 - - T ypical R TU - - MP System Contr ol W ir ing Diagram 48TC[...]

47 T abl e 21 – RTU - - MP Cont roll e r Inputs and O utputs POI NT N AME BA Cnet OB JE CT NAME TYPE OF I/O CON NE CTI ON PI N NUMB ERS INPU TS Space T emperatu re Sensor sptsens A I (10K Th ermistor) J 2 0 --- 1 , 2 Supply Air T emperature sa t AI (10K T hermistor) J 2 --- 1 , 2 Loca l Outside Air T emper ature Sens or oatsens A I (10K Th ermist[...]

48 Outdoor air m anagem ent func tions can be e nhance d with field- - ins tallation of th ese access ory contr ol devices : Enthal py control (outdoor ai r or differential sensors) Sp ace CO 2 sensor Outdoor air CO 2 sensor Field Co nnections - - Field connectio ns for accesso ry sensors and i nput devi ces a re made the R TU- - MP , at plugs J1, [...]

49 Loca te the ent halpy control in the economiz er hood. Locate two G RA leads in the factory harn ess and conn ect these lea ds to ent halpy c ontrol sensors 2 and 3. (See Fig. 49.) Connec t the e nthal py control powe r input te rmina ls to econo mizer actuator pow er leads RED (connect to TR) and BLK (conne ct to T R1). The outdoor ent halpy ch[...]

50 T o conn ect the senso r to the contr ol, identify the positiv e (4 to 20 mA) and ground (SIG COM) terminal s on the OAQ sensor . See Fig. 51. Connect t he 4 to 20 m A terminal to R TU- - M P J 4- - 5. Connect the S IG CO M terminal to R TU - - M P J 4- - 6. (See F ig. 66.) SEN COM J4-5 J4-6 OAQ Sensor/RH Sensor 24 V AC C08463 Fig. 66 - - R TU- [...]

51 SW3 Protocol Selection PROTOC OL DS8 DS7 DS6 DS5 DS4 DS3 DS2 DS1 BAC ne t MS/TP (Ma ster) Unused OF F OFF OFF ON OF F Select B au d Select Bau d Modb us (Slave) Unused OF F OFF ON ON OFF Select Bau d Select Bau d N2 (Slave) Unused OF F OFF OF F ON ON OFF OF F LonWorks Unuse d ON ON OFF ON OFF OFF OFF NOTE: DS = Dip Sw itch BACnet MS/TP SW3 examp[...]

52 C07170 Fig. 69 - - BACview 6 Handhe ld Co nnec ti ons T able 22 – LEDs The LEDs on the R TU- - MP s how th e status of certain function s If this L ED 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 da ta over the n etwork segm ent DO# The digital outp[...]

53 T abl e 23 – T rouble shoot ing Al ar ms POINT NAME BAC ne t OBJECT NAM E ACTION T AKEN B Y CON TROL RESET METHOD PROBA BLE CAUSE Saf ety C hain A larm sa fe ty_ cha in Alarm Generated Immed iate Shut down Automa tic Over load Indoor Fan or El ectric Heater o verheat. Fire Shutdown Alarm fire_alarm Alarm Generated Immed iate Shut down Automa t[...]

54 Alarms Alarms can be checked t hrough t he net work and/ or the local acces s. All th e alarms are lis ted in T able 23 with name , object na me, ac tion taken by control, re set method, and pr obable cause. There are help screen s for each alarm on the local access dis play and listed in R TU- - MP Controls, Start - - Up, O pera tion, and Troub[...]

55 Device Instance: 0160001 1 PRGs loaded. 1 PRGs running. Module status: Firmware sections validated in flash memory ============================================ Boot16-H - v2.06:001 Jun 19 2007 RTU-MP DRIVER - v2.09:050 Jun 26 2007 Reset counters: 11 Power failures 0 Brownouts 18 Commanded warm boots 22 Commanded cold boots 0 System errors 0 Watc[...]

56 T abl e 24 – M anuf ac ture Date When t roubleshooting, you ma y need t o know a control m odule’ s manufa cture da te Obta in the m a nu f ac tur e da te f ro m a... Note s Mo dule st atus re port (m odst at) T o obtain a modstat with BA Cview 6 : 1. Press F uncti on (FN) key and hold. 2. Then p ress period (.) 3. R elease both b utton s. T[...]

57 NOTE : See R TU - - MP 3rd Party Inte grati on Guide (or alternatively R TU- - M P 3rd Party I ntegration Guid e (or alternatively R TU- - MP Con trols, S tart- - Up, Operation , and Troubleshooting Instruc tions (Form 48 - - 50H- - T - - 2T), Appendix) for Modbus Protocol Conformanc e Stat eme nt. N2 1. V erify that the BA S and contr oller are[...]

58 C09023 Fig. 73 - - EconoMi $er IV Wiring 4 3 5 2 8 6 7 1 10 11 9 12 PINK VIOLET BLACK BLUE YELLOW NOTE 1 NOTE 3 RUN 500 OHM RESISTOR 50HJ540573 ACTUA TOR ASSEMBL Y RED WHITE ECONOMISER2 PLUG DIRECT DRIVE ACTUA TOR 4-20mA SIGNAL OA T SENSOR 4-20 mA TO J9 ON PremierLink BOARD 24 V AC TRANSFORMER GROUND NO TES: 1. Switch on actuator must be in run [...]

59 T abl e 27 – E co noM i$e r IV Input/ O utput Lo gic INPU TS OU TP UTS Demand Contro l V entilation (DCV) Ent hal py* Y1 Y2 Compressor NT e r m i n a l † Ou tdoor Retu rn Sta ge 1 Stage 2 Occu pied Unoccupied Damper Below set (D CV LED Off) High (Free Coolin g LE D Off) Low On On On On Minimu m position Closed On Off On Off Off Off Off Off L[...]

60 Supply Air T em per ature ( SA T ) Sensor The supply a ir tem perat ure sensor is a 3 K therm istor locat ed at the inl et of the i ndoor fan. (See Fig. 76. ) This sensor is fact ory installe d. The operat ing ra nge of temperatur e measurement is 0  to 158 _ F( - - 1 8 _ to 70 _ C). See T able 15 fo r sen sor temp erature/res istan ce values[...]

61 Diff eren tial Dry Bu lb Con tro l For differential dry bul b control the sta ndard outdoor dry bulb sensor is used in conjunc tion wit h a n addit ional access ory dr y b ulb sen sor (part nu mber CR TEMPSN002A 00). T he accessory se nsor must be mounted i n the return ai rstream . (See Fig. 80.) W i ring is provided in t he Ec onoMi$er IV wiri[...]

62 TR1 24 V ac COM TR 24 Va c HOT 12 3 4 5 EF EF1 + _ P1 T1 P T N EXH 2V 10V EXH Set Set 2V 10V 2V 10V DCV DCV Free Cool B C A D SO+ SR+ SR SO AQ1 AQ DCV Min Pos Open Max N1 C06038 Fig. 82 - - EconoMi $er IV Control Dif fere nti al E nthal py Control For differential e nthal py control, the EconoMi$e r IV controll er uses t wo entha lpy sensors (HH[...]

63 Adju st the minimum po sition po tentiometer to allow the minim um am ount of outdoor ai r , a s required by local codes , to enter the bu ilding. Make min imum p osition adjus tments w ith at least 1 0 _ F temperatur e dif ference betwee n the outdoor a nd return-a ir tem perat ures. T o determin e the minimum positio n setting, per form the fo[...]

64 The same e quation ca n be used to determ ine the occupie d or maximum ven tilation rate to the build ing. For example, an output of 3. 6 volts to t he ac tuat or provides a base ventilation r ate of 5% and an output of 6.7 volts provides the maximum ventilation rate of 20% ( or base plus 15 cfm per person). Use Fig. 83 to determi ne the maximum[...]

65 T ab le 29 – E conoMi$ er IV Sens or U sage APPLICATION ECONOMI$ ER IV WIT H OUTDOOR A IR DRY BULB SE NSOR Acces sories Required Ou tdoor Air Dry Bu lb None . The outd oor air d ry b ulb sensor is fa ctory in stalle d. Di fferenti al Dry Bu lb C RTEMPSN002A00* Sing le Enth alp y HH57AC 078 Di fferenti al Enthalpy HH 57AC078 an d C RENTDIF004A0[...]

66 5. Tur n the DC V setp oint poten tiometer CW until the DCV LED turns off. The DCV LE D should turn off when the poten tiometer is approximately 9- - v . The actua tor should drive fully c losed. 6. Turn the DCV and E xhaust potenti omet ers CCW unti l the Exhaust LE D turns on. T he e xhaust c ontac ts will close 30 to 120 se conds after t he E[...]

67 C09156 Fig. 84 - - 48TC T ypical Unit W iri ng D iagram - - Power (D08, 208/230 - - 3- - 60) 48TC[...]

68 C09157 Fig. 85 - - 48TC T ypical Unit Wiring Diagram - - Contr ol (D08, 208/230 - - 3 - - 60) 48TC[...]

69 PRE- -ST AR T - - UP PERSO NAL INJ URY HAZARD Failure t o follow thi s warning c ould result i n personal injury or dea th. 1. Follow recogniz ed safety pra cti ces and wear protec tive goggl es when chec king or servici ng refrigera nt system. 2. Do not operate compre ssor or provide a ny el ect ric power to unit unless compressor termi nal cov[...]

70 UNIT OP ERA TIO N AND SAF ETY H AZARD Failure t o follow thi s warning c ould result i n personal injury or dea th. Disconnect gas piping from uni t when l eak testing at pres sur e greater than 1/2 ps ig. P res sures greater than 1/2 ps ig will cause gas valve damage resulting in hazardous conditi on. If gas valve is subjected to pres sur e gre[...]

71 NOTE : The defaul t va lue for the e vaporat or - - fan mot or on/off del ay is 45 seconds. The Inte grate d Gas Unit Controller (IGC) m odifies this value when abnormal limit sw itch cycles occur . Based upon unit operatin g conditions, the on de lay c an be re duced t o 0 sec onds a nd the off delay can be exte nded to 180 seconds. If the limi[...]

72 Field Service T est mode has t he following cha nges from normal opera tion: S Outdoor air tempe rature limits for cooling c ircuits, economi zer , a nd heat ing are ignored. S Nor mal compres sor time guar ds and oth er stagin g delays are ignored. S The status of A larms (excep t Fire and Safety chain) is ignored but all alerts and alar ms are[...]

73 Cooling/Econ SA T Low Setpt The supply air tem perat ure must rema in above this value to allow coo ling with th e economizer and/o r comp ress ors . There is 5 _ F plus and mi nus dea dband to t his point. If the SA T fall s below t his value during cooling, al l compressors will be staged of f. The economizer will star t to ramp dow n to minim[...]

74 T55 /56 Override D uratio n This sets t he oc cupanc y override durati on when the override button is pushed on the space sensor . Facto ry Defau lt = 1 hr Range = 0 - - 24 hr IAQ Low Reference @ 4mA This is used when an IAQ sensor is insta lle d on Input 1 or 2. This value is disp layed and used wh en 4mA is s een at the input. Facto ry Defau l[...]

75 OPERA TING SEQUENCES Base Un it Con tr ols Cooling, Un its Wit hout E conomize r When thermostat calls for Stage 1 cooling , terminals G and Y1 are e nergized. T he indoor - - fan contact or (IF C), outdoor fan cont act or (OFC) and Compre ssor 1 conta ctor (C1) are e nergized and indoor-fan motor, outdoor fan and Compressor 1 start. The outdoor[...]

76 DCV operation is availa ble in Occupied and Unoccupied periods with EconoMi$e r IV . However , a c ontrol modific ati on will be re quired on the 48TC unit to imple ment the Unocc upied pe riod functi on. Supplem ent al Co ntr ols Compressor Loc kout Rel ay (CL O) - - The CLO is a vail able as a facto ry-in stalled op tion or as a field- - insta[...]

77 Routine No. 2: If DXLOCK (or DX Cooling Loc kout is disabled) < OA T  68 _ F when Y1 input i s e nergized, t he econom izer wil l be m odulate d to mainta in SA T at SASP = SA TLO1 + 3 _ F. I f t h e S A T > S A S P + 5 _ F a nd the economizer position > 85% th en the economizer will close th e to minimum p osition for thr ee minutes[...]

78 Indoor Fan — The indoor fa n will be turned on whenever any one of the following condit ions are met : S If the Premi erLi nk controll er is in t he occupi ed mode and ASHR AE 90. 1 Supply Fan i s confi gured for Y es in the CON FI G table. This will be determined by its own interna l occupa ncy schedule i f it is programmed to follow its loca[...]

79 T able 30 – A vailable Cooli ng Stages NUMB ER OF ST AGES 0 1 (ECO NOM IZ ER *) 2 3 Compressor 1 Off Off On On Compressor 2 Off Off Off On * If conditi ons are suit able for economi zer operati on. Any time the compress ors ar e running, the PremierLink controll er will loc kout the compre ssors if t he SA T become s too low . The se user conf[...]

80 If the OA T is between D XLO CK and 6 8 _ F ( DXLOCK < OA T < 68 _ F) and addit ional cool ing is required, the economizer w ill close the to minimu m position f or th ree minute s, the e conomi zer int egrat or will the n be reset t o 0 and begi n modulat ing to ma inta in the SASP aft er the stage has been e nergized for about 90 sec ond[...]

81 There is als o a SA T temperin g routine that will act as SA T low limit saf ety to preven t the SA T fro m becoming to o cold should the economiz er fail to close. One stage of heating w ill be ener gized if it is n ot in the Cooling or Free Cooling mode and the OA T is below 55 _ F and the SA T is below 40 _ F . It will deener gize when the SA[...]

82 T empe rature Compensate d Start — This function will run when t he cont rolle r i s in unoc cupie d state and will calculate early star t bias time (SB T) based on space tempe rature de viat ion from occ upied set points i n minut es per degree . The foll owing conditions will be me t for t he function t o run: S Unit is in unocc upied sta te[...]

83 The Pr emierLink t controller wil l genera te a Li nkage Commu nication Failure alarm if a failure occurs for 5 consecut ive minut es once a Linka ge has previously been establis hed. It will then revert back to its own SP T , setpoints and occupa ncy schedule for cont rol. For this reason, Ca rrier strongl y recomm ends that an SPT be install e[...]

84 The Holida y schedule is creat ed to overri de the Dai ly schedule and ide ntify a specific day and month of the year to start a nd stop the uni t and change control t o the unoccupi ed heat ing and cooling set points. Follow the same ste ps to turn on one of the twelve Holiday schedul es and s tart and s top times. Nex t, select one out of the [...]

85 Economize r The Ec onomiz er dampers are used t o provide free c ooling and Indoor Air Quality , if optional CO 2 sens or is installed, when the outside condit ions are suitabl e. The following condi tions must be t rue for economi zer operati on: S Indoor Fan has been on for a t lea st 30 seconds. S Enthal py is L ow if t he Ent halpy input i s[...]

86 T abl e 33 – T orque V al ue s Supply fan motor mounti ng 120 ¦ 12 in - - - lbs 13.5 ¦ 1.4 N m Sup ply f an m otor ad ju stment p late 120 ¦ 12 in - - - lbs 13.5 ¦ 1.4 N m Motor pu lley setscrew 72 ¦ 5 i n --- l b s 8.1 ¦ 0.6 N m Fan pulley setscrew 72 ¦ 5 i n --- l b s 8.1 ¦ 0.6 N m Blower wheel hub setscrew 72 ¦ 5 i n --- l b s 8.1 [...]

87 APP ENDIX I. MODEL NUMBER SIGNIFICANCE Mo del Num ber N ome ncla tur e 123456789 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 4 8 T C D D 0 8 A 1 A 5 -- 0 A 0 A 0 ____ ____ ____ Unit Heat T ype 48 = Coolin g/Gas Heat RT U Brand / P ackagi ng 0=S t a n d a r d Tier / Model 1=L T L TC = Entry tier (wit h Puron R refrigerant) El ec tri ca l Opti on s A=N o [...]

88 APP ENDIX II . PHYSICAL DA T A Physical Data (Cooling) 7.5 - - 12.5TONS 48TC*D08 48TC*D12 48TC*D14 Refr igera tion System #C i r c u i t s/#C o m p ./T y p e 2/2/S c r o l l 2/2/S c r o l l 2/2/S c r o l l Puron R refrig. (R - - - 410A) charge per c i r c u i t A / B ( l b s --- o z ) 4 --- 6 / 4 --- 6 6 --- 0 / 6 --- 0 7 --- 6 / 8 --- 0 Oil A /[...]

89 APP ENDIX I I. P HYSICAL DA T A (cont. ) Physical Data (Heating) 7.5 - - 12.5TONS 48TC**08 48TC**12 48TC**14 Gas Connect ion #o f G a sV a l v e s 111 Nat. ga s supply line press (in. w .g.)/(PSIG) 4 --- 1 3 / 0 . 1 8 --- 0 . 4 7 4 --- 1 3 / 0 . 1 8 --- 0 . 4 7 4 --- 1 3 / 0 . 1 8 --- 0 . 4 7 LP sup ply line p ress (in. w .g.)/(PSIG) 11 - - - 13[...]

90 APP ENDIX III. F AN PERF ORMANCE 48TC**08 3 PHASE 7.5 TON HORIZONT AL SUPPL Y CFM A V A I L A B L EE X T E R N A LS T A T I CP R E S S U R E( i n .w g ) 0.2 0.4 0.6 0.8 1. 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BH P Standard Static Option Medium St atic Op tio n 2250 505 0.52 586 0.73 657 0.97 722 1.22 782 1.50 2438 533 0.62 610 0.85 679 1.09 742[...]

91 F AN P ERFORMANCE (cont .) 48TC**12 3 PHASE 10 TON HORIZONT AL SUPPL Y CFM A V A I L A B L EE X T E R N A LS T A T I CP R E S S U R E( i n .w g ) 0.2 0.4 0. 6 0.8 1.0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BH P F i e l d --- S u p p l i e d D r i v e 1 Standar d Static Option Medi um Stati c Opt ion 3000 579 0.70 660 0.89 732 1.09 799 1.29 860 1.50[...]

92 48TC**14 3 PHASE 12.5 TON HORIZONT AL SUPPL Y CFM Ava i la ble E xte r na l Sta ti c Pre ss ur e (i n . wg) 0.2 0.4 0. 6 0.8 1.0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BH P Standard Static Option Medium St atic Op tio n 3438 639 0.98 713 1.20 781 1.43 843 1.65 901 1.88 3750 683 1.23 753 1.47 817 1.71 877 1.96 933 2.21 4063 728 1.52 794 1.78 855 2.0[...]

93 APP ENDIX III. F AN PERF ORMANCE ( cont .) Pulle y Adjus tme nt UNI T MOTOR/DRIVE COMB O MOTOR PULLEY TUR NS OPEN 0.0 0.5 1. 0 1.5 2.0 2. 5 3. 0 3.5 4. 0 4.5 5. 0 08 3p h a s e Stand ar d Static 747 721 695 670 644 618 592 566 541 515 489 Mediu m Static 949 927 906 884 863 841 819 798 776 755 733 High Stat ic 1102 1083 1063 1044 1025 1006 986 96[...]

94 ELECTRICAL INFO RMA TION 48TC*D08 2 - - - Stage C ool ing 7.5 T ons V --- P h --- H z VOL TAGE RANGE COMP ( Cir 1) COMP (Cir 2) OFM (ea) IFM RLA LRA RLA LRA WAT TS FLA TYPE Max WAT TS Max AMP Draw EFF at F ull Load FLA MIN MAX 2 0 8 --- 3 --- 6 0 187 253 13.6 83 13.6 83 325 1.5 STD 1448 5.5 80% 5.2 MED 2278 7.9 81% 7.5 HIGH 4400 15.0 81% 15.0 2 [...]

95 MCA/ MOCP D ETERMINATION NO C. O. OR U NP WRD C. O. UNI T NOM . V --- P h --- H z IFM TYPE COMB USTION FAN MOTOR FLA POWER EXHA UST FLA NO C. O . or UNPWRD C. O . NO P .E . w/ P .E. (pwr d fr / un it) MCA MOCP DISC. SIZE MCA MOCP DISC. SIZE FLA LRA FLA LRA 48TC*D08 208/230 - - - 3 - - - 60 STD 0.48 3.8 43.6 50 46 198 47.4 60 51 202 MED 45.9 50 4[...]

96 APP ENDIX IV . WIRING DIAGRAM LIST Wir ing Diagrams 48TC SIZ E VOL TA GE CONT RO L POWER D08 208/230 - - - 3 - - - 60 48TM501325 48TM501326 460 - - - 3 - - - 60 48TM501325 48TM 501326 575 - - - 3 - - - 60 48TM501325 48TM 501327 D12 208/230 - - - 3 - - - 60 48TM501325 48TM501326 460 - - - 3 - - - 60 48TM501325 48TM 501326 575 - - - 3 - - - 60 48T[...]

97 APP ENDIX V . MOTORMASTER SENSOR LOCA TIONS C09158 Fig. 86 - - 48TC*D08- - D12 Outd oor Circuiting NOTE : The low ambient kit for the 12.5 ton unit utilizes a pres sure tran sducer , and th erefore there is no Motor master temperatur e sens or location fo r this unit. Copyright 2009 Carrier Corp. S 7310 W . Morris St. S I ndianapolis, IN 46231 P[...]

98 UNIT ST AR T -UP CHECKLIST I. PRE LI MINAR Y INFORMA T IO N: MODEL NO.: DA TE: ______________ SERIAL NO: _____________________________________ TECHNI CIAN: ___________________________________ BUILDI NG LO CA TIO N:____________________________ II. PRE -ST AR T -UP (in sert check ma rk in b ox as each i tem is compl eted): j VERIFY THA T ALL P ACK[...]