Carrier 48TF004-007 manual

Manufa cturer res erves the righ t to disc ontinue , or chan ge at any tim e, spec ificati ons or des igns wi thout not ice and w ithou t inc urring obligations. PC 111 Catalog No. 534-8 0000 Print ed in U.S.A. Form 48TF- 1SI Pg 1 8-00 Repla ces: New Book 1 4 Ta b 1 a 6 a Installation, Star t-Up , and Ser vice Instr uctions CONTENTS Page SAFETY CON[...]

2 Curb should be level. Unit leveling tolerances are shown in Fig. 3. This is necessary for unit drain to function properly . Re- fer to Accessory Roof Curb Installa tion Instruct ions for addi- tional information as required. SLAB MOUNT (Horizontal Units Only) — Pr ovi de a le ve l concrete slab that extends a minimum of 6 in. beyond unit cabine[...]

3 Fig. 2 — Roof Curb Dimensions ROOF CURB A CCESSOR Y A UNIT SIZE CRRFCURB001A00 1 ′ -2 ″ [356 ] 48TF00 4-007 CRRFCURB002A00 2 ′ -0 ″ [610 ] NO TES: 1. Roof cur b accessor y is shipped disassem bled. 2. Insulate d panels. 3. Dimensions in [ ] are in millimeters. 4. Roof cur b , galvanized st eel. 5. Attach du ctwork to curb (flan ges of d[...]

4 Unit may be installed directly on wood floori ng or on Class A, B, or C roof-covering material when roof curb is used. Although unit is weatherproof, guard a gainst water from higher level runoff and overhangs. Flue vent discharge must have a minimum horizontal clear- ance of 4 ft from electric and gas meters, gas regulators, and gas relief equip[...]

5 Table 1 — Phys ical Data — 48TF004-007 L EGEND *Evaporator coil fin mater ial/condense r coil fin mater ial. Contact your local represen tative for details about co ated fins. †Weight of 14- in. roo f curb. **Singl e phase/th ree-phase. ††Rollout switch lo ckout is manually reset b y interrupting power to unit or resettin g ther mosta t[...]

6 Table 1 — Physi cal Data — 48TF004-007 (cont) L EGEND *Evaporator coil fin mater ial/condense r coil fin mater ial. Contact your local represen tative for details about co ated fins. †Weight of 14- in. roo f curb. **Singl e phase/th ree-phase. ††Rollout switch lo ckout is manually reset b y interrupting power to unit or resettin g ther [...]

7 Fig. 6 — Ba se U ni t Di me nsi ons UNIT STD UNIT WEIGHT DURABLADE ECONOMIZER WEIGHT ECONOMI$ER WEIGHT (A) CORNER WEIGHT (B) CORN ER W EIG HT (C) CORNER WEIGHT (D) CORNER WEIGHT “A” P ANEL LENG TH Lbs Kg Lbs Kg Lbs Kg L bs Kg Lbs Kg Lbs Kg Lbs K g 48TFN,T FM,TFF ,TFE004 460 209 34 15.4 47 21.3 140 63.5 105 47.6 159 72.1 56 25.4 1 ′ -10 3 [...]

8 Step 7 — Make Electrical Connections FI E LD P OW E R S U P PL Y — All units except 208/230-v units are factory wired for the voltage shown on the nameplate. If the 208/230-v unit is to be connected to a 208-v power sup- ply , the transformer must be rewired by moving the black w ir e with the 1 / 4 -in. female space connec tor from the 230-v[...]

9 RACEW A Y LOW V OL T A GE CONNECTIONS INTEGRA TED GAS UNIT CONTROLLER (IGC) HOLE IN END P ANEL (HIDDEN) LEGEND Fig. 9 — Power Wiring Connections C— Contactor COMP — Compressor NEC — National Electrical Code TB — T erminal Block LEGEND NO TES: 1. Connect Y2 when unit is equipped with an economizer . 2. Connect W2 when unit is equi pped w[...]

10 Table 2 — Elect rical Dat a LE GEND *Used to det ermine minimum disconnect per NEC . †Fus e or HACR circ uit b reaker. NO TES: 1. In complian ce with NEC requiremen ts for m ultimotor and combination load equipme nt (ref er to NEC Articles 430 and 440 ), the ov ercurren t protec ti v e de vice for th e uni t sha ll be f use o r HA CR breaker[...]

11 Step 8 — Make Outdoor-Air Adjustment s and Install Out door-Air Hood MANUAL OUTDOOR-AIR DAM PER — The out door-air hood and screen are attached to the basepan at the bottom of the unit for shipping. Assembly: 1. Determine quantity of ventilation required for building. Record amount for use in Step 8. 2. Remove and save outdoor air opening pa[...]

12 OP TIONAL DURABLADE ECONOMIZER — Th e op - tional economizer hood assembly is packaged and shipped in the filter section. Damper blades and control boards are in- stalled at the factory and the economizer is shipped in the verti- cal dischar ge position. NOTE: Horizontal dischar ge block-off plate is s hipped with the air hood package. If unit[...]

13 BLOCK-OFF PLA TE ECONOMIZER CONTROL BOARD ECONOMIZER PLUG ECONOMIZER M OTO R TOP SCREW BAROMETRIC RELIEF D AMPER WIRING HARNESS POSITION SETTING BRACKET U-SHAPED HOLE (NO T SHOWN) SHIPPING SCREW Fig. 19 — Horizontal Discharge Block-Off Plate Fig. 20 — Durablade Economizer Installe d in Unit EXAMPL E: Given — Negative Pressure . . . . . . .[...]

14 OP TIONAL ECONOMI$ER — Se e Fig . 25 for Ec onoMi $er component locations. 1. T o remove the existi ng unit filter access panel, raise the panel and swing the bottom outward. The panel is now disengaged from the tra ck and can be removed. Rem ove the indoor coil access panel and discard. See Fig. 26. If installing an optional Power Exhaust Ass[...]

15 5. Slide the o utdo or-air in let sc reens i nto th e scre en track on the hood side panels. While holding the screens in place , fasten the screen retainer to the hood using the scre ws provided. Repeat the process for t he barometric exhaust air screen. Do not attach completed (Fig. 29) hood as- sembly to unit at this time . 6. Slide the Econo[...]

16 OUTDOOR AIR SENSOR TEMP TEMP COM OUT PWR BROWN VIOLET WHITE RED BROWN TEMP TEMP COM OUT PWR RETURN AIR SENSOR VIOLET WHITE RED OA T COM OAH -15 V RA T COM RAH +15 V ECONOMI$ER CONTROLLER PINK TEMP TEMP VIOLET SUPPL Y AIR TEMPERA TURE SENSOR V+ 24 COM V AC SENSOR CO 2 (+) COM DA T COM REM POT COM LED COM CO 2 CO 2 LEGEND Fig. 32 — EconoMi$er Wi[...]

17 4-PIN CONNECTOR PLUG L1 L2 GREEN 1 1 22 33 44 GND 230 V AC 1 PHASE GREEN/ YELLOW 3 2 1 5 8 6 9 B A 7 4 L T . BLUE BLACK BROWN C1 BLUE GREEN/ YELLOW 3 2 1 5 8 6 9 B A 7 4 L T . BLUE BLACK BROWN C1 BLUE F AN 2 F AN 1 BLACK BLACK BLACK R1 24 V AC R2 24 V AC BLACK BLUE 1 2 3 BROWN ORANGE 3-PIN CONNECTOR PLUG YELLOW RED YEL H1 BLU GRA Y H4 SECONDARY [...]

18 CO 2 Control Setup — If a CO 2 sensor is n ot being used, pro- ceed to the next secti on. If a CO 2 sensor is being used, perform the following: 1. Determine the value at which you wa nt the minimum position of the dampers to begi n opening to allow a greater amoun t of outdoor air to enter . The range is 800 to 1,400 ppm . 2. Lo cate the CO 2[...]

19 Step 9 — Adjust Evaporat or -Fan Speed — Ad- just evaporator-fan rpm to me et jobsite conditions. T able 5 shows fan rpm at motor pulley settings. T able 6 shows motor performance. See T abl e 7 for Accessory/FIO P Static Pressure. Refer to T ables 8-29 to determine fan speed settings. DI R E C T - DR I V E M O TO R S — The evaporat or-fan[...]

20 Table 5 — Fan Rpm a t Motor Pulley Settings* *Appro ximate f an r pm shown. †Indic ates alte r nate moto r and driv e pac kage. **Indic at es high-static motor and drive pa ckage . ††Indic ates standard motor and driv e packag e . Table 6 — Motor Data LEGEND BHP — Brak e Horsepo wer *Extensiv e moto r and electrical testing on th ese[...]

21 Table 8 — Fan P erformance 48TF004 — Verti cal Discharge U nits, Standard Moto r L EGEN D NO TES: 1. V alues include losses for filters, unit casing, and wet coils. See T abl e 7 for acces sory/FIOP static pres sure inf ormation. 2. Ex tensiv e motor and electrical te sting on the se units en sures that the ful l range of the motor can b e u[...]

22 Table 10 — Fan P erformance 4 8TF004 — Vertical D ischarge Units, High-Static Mot or L EGEN D *Motor driv e range i s 1075 to 1455 rpm. All other rpms require a fie ld- supp l i e d dr i ve. NO TES: 1. Boldface indi cate s fiel d- suppl ied dr ive is requ ired . 2. V alues include losse s for filters, unit casing, and wet coils. See T abl e [...]

23 Table 12 — Fan Per formance 48TF005 — Vertical Disc harge Units, Altern ate Motor LEGEND *Motor d ri ve range is 835 t o 11 85 r pm. All othe r r p ms requ ire a fiel d-sup plied drive. NO TES: 1. Boldface indicates field-su pplied drive is required. 2. indicate s field-su pplied m otor and drive are requir ed. 3. V al ues includ e losses fo[...]

24 Table 14 — Fan Per formance 48TF006 — Vert ical Discharge Units, Standard Motor L EGEN D NO TES: 1. V alues include losse s for filters, unit casing, and wet coils. See T abl e 7 for acces sory/FIOP static pres sure inf ormation. 2. Ex tensiv e motor and electrical te sting on the se units en sures that the ful l range of the motor can b e u[...]

25 Table 16 — Fan P erformance 4 8TF006 — Vertical D ischarge Units, High-Static Mot or LE GEND *Motor driv e range i s 1300 to 1685 rpm. All other rpms require a fie ld- supp l i e d dr i ve. NO TES: 1. Boldface indi cate s fiel d- suppl ied dr ive is requ ired . 2. indicates field- supplied motor and drive are req uired . 3. V alues include l[...]

26 Table 17 — Fan Per formance 48TF007 — Vert ical Discharge Units, Standard Motor LE GEND *Motor driv e range i s 1070 to 1460 rpm. All other rpms require a fie ld- supp l i e d dr i ve. NO TES: 1. Boldface indi cate s fiel d- suppl ied dr ive is requ ired . 2. indicates fiel d-supplied motor and drive are requir ed. 3. V alues include loss es[...]

27 Table 18 — Fan P erformance 4 8TF007 — Vertical D ischarge Units, High-Static Mot or L EGEN D *Motor driv e range i s 1300 to 1685 rpm. All other rpms require a fie ld- supp l i e d dr i ve. NO TES: 1. Boldface indi cate s fiel d- suppl ied dr ive is requ ired . 2. indicates fiel d-supplied motor and drive are requir ed. 3. V alues include l[...]

28 Table 19 — Fan Perfor mance 48TF004 — H orizontal Discharge Units, Standard Motor LE GEND NO TES: 1. V alues include losse s for filters, unit casing, and wet coils. See T abl e 7 for acces sory/FIOP static pres sure inf ormation. 2. Ex tensiv e motor and electrical te sting on the se units en sures that the ful l range of the motor can b e [...]

29 Table 21 — Fan Performance 4 8TF004 — Horizontal Discha rge Units, High-Static Motor LEGEN D *Motor driv e range i s 1075 to 1455 rpm. All other rpms require a fie ld- supp l i e d dr i ve. NO TES: 1. Boldface indi cate s fiel d- suppl ied dr ive is requ ired . 2. V alues include losses for filters, unit casing, and wet coils. See T abl e 7 [...]

30 Table 22 — Fan Perfor mance 48TF005 — H orizontal Discharge Units, Standard Motor LE GEND NO TES: 1. V alues include losse s for filters, unit casing, and wet coils. See T abl e 7 for acces sory/FIOP static pres sure inf ormation. 2. Ex tensiv e motor and electrical te sting on the se units en sures that the ful l range of the motor can b e [...]

31 Table 24 — Fan Performance 4 8TF005 — Horizontal Discha rge Units, High-Static Motor LEGEN D *Motor driv e range i s 1075 to 1455 rpm. All other rpms require a fie ld- supp l i e d dr i ve. NO TES: 1. Boldface indi cate s fiel d- suppl ied dr ive is requ ired . 2. V alues include losses for filters, unit casing, and wet coils. See T abl e 7 [...]

32 Table 26 — Fan Perfor mance 48TF00 6 — Horizontal Discharge Units, Alternate Mo tor LEGE ND *Motor d rive range is 900 to 1300 rpm. All ot her rpms require a field- supp l i e d dr i ve. NO TES: 1. Boldface indi cate s fiel d- suppl ied dr ive is requ ired . 2. indicates fiel d-supplied motor and drive are requir ed. 3. V alues include los s[...]

33 Table 27 — Fan Performance 4 8TF006 — Horizontal Discha rge Units, High-Static Motor LEGE ND *Motor driv e range i s 1300 to 1685 rpm. All other rpms require a fie ld- supp l i e d dr i ve. NO TES: 1. Boldface indi cate s fiel d- suppl ied dr ive is requ ired . 2. indicates fiel d-supplied motor and drive are requir ed. 3. V alues include lo[...]

34 Table 28 — Fan Perfor mance 48TF007 — H orizontal Discharge Units, Standard Motor LEGE ND *Motor driv e range i s 1070 to 1460 rpm. All other rpms require a fie ld- supp l i e d dr i ve. NO TES: 1. Boldface indi cate s fiel d- suppl ied dr ive is requ ired . 2. indicates fiel d-supplied motor and drive are requir ed. 3. V alues include los s[...]

35 Table 29 — Fan Performance 4 8TF007 — Horizontal Discha rge Units, High-Static Motor LEGE ND *Motor driv e range i s 1300 to 1685 rpm. All other rpms require a fie ld- supp l i e d dr i ve. NO TES: 1. Boldface indi cate s fiel d- suppl ied dr ive is requ ired . 2. indicates fiel d-supplied motor and drive are requir ed. 3. V alues include lo[...]

36 ST ART -UP Unit Preparation — Make sure that unit has been in- stalled in acc ordance with these i nstallation i nstructions and applicable codes. Return-Air Filter s — Make sure correc t filters are in - stalled in filter tracks. See T able 1. Do not operate unit without return-air fil ters. Compressor Mounting — Compressors are internall[...]

37 If the limit swit ch trips at the start of the heating cycl e dur- ing the evaporator ON delay , the time per iod of the ON delay for the next cycle will be 5 seconds less than the time at which the sw itch t rippe d. (Exa mple : If the l imit switch trips at 30 sec- onds, the evaporator-fan ON delay for the next cycle will occur at 25 seconds.)[...]

38 HEA TING, UNITS WITH ECONOMIZER — W hen th e thermostat cal ls for heating, termi nal W1 is ene rgized. T o pre- vent thermostat short-cycling, the unit is locked into the Heat- ing mode for at least 1 minute when W1 is energized. The induced-draft motor is energized and the burner ignition se- quence begins. The indoor (evaporator) fan motor [...]

39 Lubricati on COM P RES SO RS — Each co mpre ssor i s char ged wit h the correct amount of oil at the factory . F A N M O TO R B E AR I NG S — Fan motor bearings are of the permanently lubricated type. No further lubrication is required. No lubrication of condenser or evaporator fan motors is required. Manual Outdoor -Air Damper — If outdoo[...]

40 4 TON UNIT CHARGING CHART 30 40 50 60 70 80 90 100 20 30 40 50 60 70 80 SUCTION LINE TEMPERA TURE (DEG. F) 207 276 345 414 483 552 621 689 - 7 - 1 4 1 01 62 12 7 SUCTION LINE TEMPERA TURE (DEG. C) OUTDOOR TEMP F C 125 52 11 5 46 105 41 95 35 85 29 75 24 65 18 55 13 45 7 SUCTION LINE PRESSURE (KILOP ASCALS) SUCTION LINE PRESSURE (PSIG) Fig. 46 ?[...]

41 5 TON UNIT CHARGING CHART 30 40 50 60 70 80 90 100 20 30 40 50 60 70 80 SUCTION LINE TEMPERA TURE (DEG. F) 207 276 345 414 483 552 621 689 -7 -1 4 10 16 21 27 SUCTION LINE TEMPERA TURE (DEG. C) OUTDOOR TEMP F C 125 52 1 15 46 105 41 95 35 85 29 75 24 65 18 55 13 45 7 SUCTION LINE PRESSURE (PSIG) SUCTION LINE PRESSURE (KILOP ASCALS) 30 40 50 60 7[...]

42 Combusti on-Air Blow er — Clean periodically to assure proper airflow and heating efficiency . Inspect blower wheel every fall a nd periodically during heating season. For the first heating season, inspect blower wheel bimonthl y to deter- mine proper cleaning frequency . T o access burner section, sli de the sliding burner partition out of t [...]

43 Fig. 51 — Burner Tr ay Details Fig. 52 — Spar k Adjustment LOW HEA T 48TFE004, 48TFD005-007 — 74,000 B TUH INPUT 48TFM004, 48TFL005-006 — 60,000 B TUH INPUT MEDIUM AND HIGH HEA T 48TFE005-007, 48TFF004 — 115,000 BTUH INPU T 48TFF005-007 — 150,000 BT UH INPUT 48TFN004, 48TFM005-006 — 90,000 BTUH INPUT 48TFN005-006 — 120,000 BTUH I[...]

44 TROUBLESHOO TING Table 32 — LED Error Code Ser vice Analysis LEGEND Table 33 — Hea ting Ser vice Analysis PROBLE M CA USE REMED Y Hard ware failure. (LED OF F) Loss of power to control m odule (IGC). Check 5 amp fuse on IGC , po wer to unit, 24-v circuit breaker , and transformer . Units without a 24-v circuit breaker hav e an internal ov er[...]

45 Table 34 — Cooling Se rvice Analysi s PROBLE M CA USE REMED Y Compressor and con denser fan will n ot start. P ower f ailure. Call power company . Fuse blown or circuit breaker tripped. Replace fuse or reset circuit brea ker . Def ective thermostat, contactor , transformer , or control relay . Replace component. Insufficient line voltage . Det[...]

46 Table 35 — Durablade Economizer Troubleshooting LEGEND PR OBLEM CA USE REMED Y Damper does not open. Indoor (evapor ator) f an is off . 1. Check to ensure that 24 vac is present at terminal C1 on the IFC or that 24 v ac is present at the IFO ter minal. Check whether 24 v ac is present at PL6-1 (red wire) and/or PL6-3 (blac k wire). If 24 vac i[...]

47 Table 36 — EconoMi$ er Troubleshooting LEGEND OA T — Outdoor -Air T emperature PR OBLEM CA USE REMED Y Damper does not open. Indoor (evapor ator) f an is Off . Check to ensure that 24 v ac is present at terminal C1 (Common P ower) on t he IFC (Indoor Evaporator F an Contactor) or that 24 vac is present at the IFO (Indoor Evapor ator F an On)[...]

48 Fig. 53 — Typical Wir ing Diagram and Component Arrangement[...]

49 LEGEND FOR FIG. 53 — TYPICAL WIRI NG SCHEMATIC AND C OMPONENT ARRANGEMENT IMPORT ANT: Refer to unit wiring label for actual unit wiring inf ormation. AHA — Adjustable Heat Anticipator C— Contactor , Compres sor CAP — Capac itor CC — Cooling Co mpensator COMP — Compresso r Motor D— Diode EC — Enthalp y Control ECON — Ec onomizer[...]

Manufa cturer res erves the righ t to disc ontinue , or chan ge at any tim e, spec ificati ons or des igns w ithout notice and w ithou t inc urring obligations. PC 11 1 Ca tal og No . 534 -8000 0 Pri nted in U .S. A. F orm 48TF -1SI Pg 50 8-00 Replace s: Ne w Book 1 4 Ta b 1 a 6 a Copyright 2 000 Carr ier Cor poration[...]

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Manufa cturer res erves the righ t to disc ontinue , or chan ge at any tim e, spec ificati ons or des igns w ithout notice and w ithou t inc urring obligations. PC 11 1 Ca tal og No . 534 -8000 0 Pri nted in U .S. A. F orm 48TF -1SI Pg CL -1 8-00 Rep laces : Ne w Book 1 4 Ta b 1 a 6 a Copyright 2 000 Carr ier Cor poration - - - - - - - - - - - - - [...]