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Carrier 48TFF008-012 manual

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  • Page 1

    Manufactu rer reser ves the rig ht to dis continue , or chan ge at a ny time, spec ificat ions or des igns without notice an d withou t inc urring obligations. Catalog No . 004-8 16 Print ed i n U .S.A. Form 48 TF-C1 SI Pg 1 1-01 Replaces: New Book 1 4 Ta b 1 a 6 a Installation, Star t-Up and Ser v ice Instr u ctions CONTENTS Page SAFETY CONSIDERA [...]

  • Page 2

    2 SLAB MOUNT (Horizontal Units On ly) — Pr ovi de a le vel concrete slab that extends a m inimum of 152 mm (6 in.) beyond unit cabinet. Install a gravel apron in front of con- denser coil air inlet t o prevent gras s and foliage from obstruct - ing airflow . NOTE: Horizontal units may be installed on a roof curb if required. Step 2 — Field Fabr[...]

  • Page 3

    3 CONNECT OR PKG. A CCY . BC D AL T DRAIN HOLE GAS PO W ER CONTROL CRBTMPWR001A00 2 ′ -8 7 / 16 ″ [827 ] 1 ′ -10 15 / 16 ″ [583 ] 1 3 / 4 ″ [44.5] 3 / 4 ″ [19] NPT 3 / 4 ″ [19] NPT 1 / 2 ″ [12. 7] CRBTMPWR002A00 1 1 / 4 ″ [31. 7] CRBTMPWR003A00 1 / 2 ″ [12.7] NPT 3 / 4 ″ [19] NPT 1 / 2 ″ [12. 7] CRBTMPWR004A00 3 / 4 ″ [19][...]

  • Page 4

    4 Although unit is w eatherproof, gua rd against water from higher level runoff and overhangs. Position unit on roof curb s o that the following clearances are mainta ine d: 7 mm ( 1 / 4 -in.) clearance betwe en roof curb and base rails on each side and duct end of unit; 84 mm (3 5 / 16 -in.) clearance be tween roof curb and condenser coil end of u[...]

  • Page 5

    5 Tab le 1 A — P hysi cal Da ta ( SI) LEGEND *Weight of 356 mm (14- in.) ro of curb. NOTE: The 48TF uni ts have a loss-of-charg e (low pre ssure) switch located in the liquid line. UNIT S IZE 48TF 008 012 014 Low Heat (D) , Medi um He at (E ), Hi gh He at (F ) D E F D E F D E NOMINAL CAP ACITY (kW) 21.5 29.2 35 .9 OPERA TING WEIGHT ( kg) Unit 395[...]

  • Page 6

    6 Table 1B — Phys ical Data (E nglish) LEGEND *Weight of 356 mm (14- in.) ro of curb. NOTE: The 48TF uni ts have a loss-of-charg e (low pre ssure) switch located in the liquid line. UNIT S IZE 48T F 008 012 014 Low Heat (D) , Medi um He at (E ), Hi gh He at (F ) D E F D E F D E NOMINAL CAP ACITY (tons) 6.1 8.3 10 .2 OPERA TING WEIGHT ( lb) Unit 8[...]

  • Page 7

    7 BO TTOM PO WER CHART , THESE HOLES REQUIRED FOR USE WITH ACCESSOR Y P ACKA GES — CRBTMPW R002A00 ( PO WER AND CONTROL) AND CRBTMPWR004A00 (POWER, CONTR OL, AND GAS) THREADED CONDUIT SIZE WIRE USE REQURED HOLE SIZES (MAX.) 1 / 2 ″ ″ ″ ″ [12.7] 24 V 7 / 8 ″ ″ ″ ″ [22.2] 1 1 / 4 ″ ″ ″ ″ [31.7] Po w e r 1 3 / 4 ″ ″ ″ ?[...]

  • Page 8

    8 Step 5 — Install Flue Hood — Flue hood is shipped screwed to the burner compartment access panel. Remove from shipping location and, using screws provided, install flue hood and screen in location shown in Fig. 7. Step 6 — Install Gas Piping — Unit is equipped for use with type of gas sh ow n on nameplate. Refer to local building codes . [...]

  • Page 9

    9 Table 2 — E lectrical Data LEG END *Fuse or HACR circuit breaker . NO TES: 1. In compliance wit h NEC requirements (U .S.A. Standard) for multimotor and combination load equipment (refer to NEC Ar ti- cles 430 and 440), the ov e rcurrent protective de v ice f or the unit shall be fuse or HACR breaker . 2. Unbalanc ed 3- Phas e Suppl y V oltage [...]

  • Page 10

    10 INTEGRA TED GAS UNIT CONTROLLER (IGC) RACEW A Y UNIT LOW VOL T AGE CONNECTION BOARD COMPRESSOR NO.1 COMPRESSOR NO. 2 Fig. 9 — Power Wiring Connections LEGEND C— Contactor IFC — Indoor (Evaporat or) F an Contacto r NEC — National Electrical Code (U .S.A. Standard) Splice Connection (F actor y Supplied) Equipment Ground Field Wiring F acto[...]

  • Page 11

    11 Step 8 — Adjust Fact or y-Installed Options AP O L LO C O N T RO L — The optional Apollo control is used to actively monitor all modes of operation as well as indoor (evaporator) fan status, filter status, and indoor-ai r qual ity . T he Apollo control is designed to work with Carrier TE MP and VVT ® systems. The thermostat must be wired to[...]

  • Page 12

    12 OP TIONAL DUR ABLADE ECONOMIZER — T h e o pt io n- al econom izer hood asse mbly is pac kaged a nd shipped in the fil- ter se ction. Damp er blades and cont rol boa rds are inst alled at the factor y and the econo mizer i s shipped in the v ertica l disch arge position. NOTE: Horizontal discharge block-off plate is shipped with the air hood pa[...]

  • Page 13

    13 ECONOMIZER CONTROL BOARD ECONOMIZER PLUG ECONOMIZER M OTO R TO P SCREW SHIPPING SCREW ECONOMIZER CONTROL BOARD ECONOMIZER MO T OR POSITION SETTING BRACKET BLOCK-OFF PLA TE Fig. 18 — Outdoor-Air Hood Details Fig. 19 — V ertical Di scharg e Block-Off Plate (48TF012, 014 Units Only) Fig. 20 — Durablade Economizer Installed in Unit Fig. 21 —[...]

  • Page 14

    14 4 3 2 1 0 5 6 7 8 9 UNIT TOP OA T (TERMINALS ARE UP) OUTSIDE AIR SCREEN MINIMUM POSITION OPEN 3 1 T P P1 T1 4 2 5 S S O D C TR B RE V .B 1 9 8 8 1 8 A % H U M I D I T Y 90 70 60 30 10 D C B A 60 65 70 75 55 50 85 8 0 DAMPER DAMPER CLOSED OPEN OUTDOOR TEMP . ° F R E V . 9 7-36 72 CW – SETPOINTS – CCW CONT A CTS SHO WN IN HIGH ENTHALPY R U S [...]

  • Page 15

    15 OP TIONAL ECO NOMI$ER — See Fig . 28 fo r Ec onoMi$er component locations. 1. T o remove the existing unit filter access panel, raise the panel and swing the bottom outward. The panel is now disengaged from the track and can be removed. Remove the indoor coil access panel and di scard. See Fig. 29. NOTE: If installing an optional Power Exhaust[...]

  • Page 16

    16 5. Slide the outdoor air inlet screens into the screen track on the hood side panels. While holding the scre ens in place , fasten the screen r etainer to the hood usi ng the screws provided. Repeat the process for t he barometric exhaust air screen. Do not attach hood assembly to unit at this time. 6. For 48TF014 units, install the ret urn air [...]

  • Page 17

    17 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$ER CONTROLLER PINK TEMP TEMP VIOLET SUPPL Y AIR TEMPERA TURE SENSOR V+ 24 COM V AC SENSOR CO 2 (+) COM DA T COM REM POT COM LED COM CO 2 CO 2 Fig. 36 — EconoMi$er Wiring Fi[...]

  • Page 18

    18 SUPPL Y AIR TEMPERA TURE SENSOR MOUNTING LOCA TION SUPPL Y AIR TEMPERA TURE SENSOR 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 BLU[...]

  • Page 19

    19 CO 2 Control Set Up — If a C O 2 sensor is not being used, pro- ceed to t he next sect ion. If a CO 2 sensor is being used, perform the following: 1. Determine the val ue at which you want the minimum position of the dampers to begi n opening to allow a great- er amount of outdoor air to enter . The range i s 800 to 1,400 ppm. 2. Loca te the C[...]

  • Page 20

    20 Step 9 — A dju st Evapor ator-Fan Sp eed — Ad- just evaporator-fan speed to mee t jobsite requirement. T able 6 shows motor perform ance. T ables 7 and 8 show fan rpm at motor pulley settings, T able 9 shows motor efficiencies and T able s 10 and 1 1 give accessory static pressure drops. Re- fer to T ables 12-23 to determine fan speed settin[...]

  • Page 21

    21 Table 7 — Fan R/s at Motor Pull ey Settings (SI) Table 8 — Fan Rpm at Motor P ulley Settings (English) Table 9 — Evaporat or-Fan M otor E fficien cy NO TE: Con v er t watts to bhp using the f ollowing f or mula: Table 10 — Acces sory/F IOP St atic Pre ssure Drop (Pa) — 4 8TF008 -014 Table 11 — Acces sory/F IOP Stat ic Pressu re Drop [...]

  • Page 22

    22 Table 12 — Fan Performance , 48TF008 — Vertical D ischarge Un its (SI) LEGEND NO TES: 1. Boldface indicates field-supplied dr ive required. (See Note 5.) 2. indicates field-supplied moto r and drive are required. 3. V alues include losses f or filters, unit casing, and wet coils. 4. Use of a field-supplied motor may aff ect wire sizing. Cont[...]

  • Page 23

    23 Table 13 — Fan Performance , 48TF012 — Vertical D ischarge Un its (SI) LEGEND NO TES: 1. Boldface indicates field-supplied dr ive required. (See Note 5.) 2. indicates field-supplied mot or and drive are required. 3. V alues include losses f or filters, unit casing, and wet coils. 4. Use of a field-supplied motor may affect wire sizing. Conta[...]

  • Page 24

    24 Table 14 — Fan Performance , 48TF014 — Vertical D ischarge Un its (SI) LEGEND NO TES: 1. Boldface indicates field-supplied dr ive required. (See Note 5.) 2. indicates field-supplied moto r and drive are required. 3. V alues include losses f or filters, unit casing, and wet coils. 4. Use of a field-supplied motor may aff ect wire sizing. Cont[...]

  • Page 25

    25 Table 15 — Fan Performance, 48TF008 — Horizontal Discharg e Units ( SI) LEGEND NO TES: 1. Boldface indicates field-supplied dr ive required. (See Note 5.) 2. indicates field-supplied mot or and drive are required. 3. V alues include losses f or filters, unit casing, and wet coils. 4. Use of a field-supplied motor may affect wire sizing. Cont[...]

  • Page 26

    26 Table 16 — Fan Performance, 48TF012 — Horizontal Discharg e Units (SI) LEGEND NO TES: 1. Boldface indicates field-supplied dr ive required. (See Note 5.) 2. indicates field-supplied moto r and drive are required. 3. V alues include losses f or filters, unit casing, and wet coils. 4. Use of a field-supplied motor may aff ect wire sizing. Cont[...]

  • Page 27

    27 Table 17 — Fan Performance, 48TF014 — Horizontal Discharg e Units ( SI) LEGEND NO TES: 1. Boldface indicates field-supplied dr ive required. (See Note 5.) 2. indicates field-supplied mot or and drive are required. 3. V alues include losses f or filters, unit casing, and wet coils. 4. Use of a field-supplied motor may affect wire sizing. Cont[...]

  • Page 28

    28 Table 18 — Fan Performance, 48TF00 8 — Vertical D ischarge Units (English) LEGEND NO TES: 1. Boldface indicates field-supplied dr ive required. (See Note 5.) 2. indicates field-supplied moto r and drive are required. 3. V alues include losses f or filters, unit casing, and wet coils. 4. Use of a field-supplied motor may aff ect wire sizing. [...]

  • Page 29

    29 Table 19 — Fan Performance, 48TF01 2 — Vertical D ischarge Units (English) LEGEND NO TES: 1. Boldface indicates field-supplied dr ive required. (See Note 5.) 2. indicates field-supplied mot or and drive are required. 3. V alues include losses f or filters, unit casing, and wet coils. 4. Use of a field-supplied motor may affect wire sizing. C[...]

  • Page 30

    30 Table 20 — Fan Performance, 48TF01 4 — Vertical D ischarge Units (English) LEGEND NO TES: 1. Boldface indicates field-supplied dr ive required. (See Note 5.) 2. indicates field-supplied moto r and drive are required. 3. V alues include losses f or filters, unit casing, and wet coils. 4. Use of a field-supplied motor may aff ect wire sizing. [...]

  • Page 31

    31 Tab le 2 1 — Fan Performance, 48TF008 — Horizontal Discharge Units (English) LEGEND NO TES: 1. Boldface indicates field-supplied dr ive required. (See Note 5.) 2. indicates field-supplied mot or and drive are required. 3. V alues include losses f or filters, unit casing, and wet coils. 4. Use of a field-supplied motor may affect wire sizing.[...]

  • Page 32

    32 Tab le 2 2 — Fan Performance, 48TF012 — Horizontal Discharge Units (English) LEGEND NO TES: 1. Boldface indicates field-supplied dr ive required. (See Note 5.) 2. indicates field-supplied moto r and drive are required. 3. V alues include losses f or filters, unit casing, and wet coils. 4. Use of a field-supplied motor may aff ect wire sizing[...]

  • Page 33

    33 Tab le 2 3 — Fan Performance, 48TF014 — Horizontal Discharge Units (English) LEGEND NO TES: 1. Boldface indicates field-supplied dr ive required. (See Note 5.) 2. indicates field-supplied mot or and drive are required. 3. V alues include losses f or filters, unit casing, and wet coils. 4. Use of a field-supplied motor may affect wire sizing.[...]

  • Page 34

    34 ST ART -UP Unit Preparation — Make sure that unit has been in- stalled in acc ordance with thes e installat ion instructions and applica ble codes . Make sure that St art-Up Checkli st, loca ted on back page of this booklet , has been completed and fi lled out. Return-Air Filters — M ake sure correct filt ers are in- stalled in filter tracks[...]

  • Page 35

    35 5. After a call for heating, the main burners should light within 5 seconds. If the burners do not light, then there is a 22-second delay before another 5-second ignition try . If the burners st ill do not light, t he time delay is repeate d. If the burners do not l ight within 15 minutes, t here is a lockout. T o reset the control, break the 24[...]

  • Page 36

    36 If the outdoor air al one cannot satisfy the cooling require- ments of the condi tioned space, economizer cooling is integrat - ed with mechanical cooling, providing second-stage cooling. Compressor no. 1 a nd the condense r fan wi ll be energized and the position of the economizer da mper will be de termined by the supply-air temperature. Compr[...]

  • Page 37

    37 Lubricatio n CO M P RE S SO R S — Each compressor i s charged with the correct amount of oil at the factory . F AN-MOTOR BEARINGS — Fan-motor bearings ar e of the permanently lubricated type. No f urther lubrication i s r e- quir ed. No lubrication of condenser- or evapor ator-fan motors is required. Condenser -Fan Adjustmen t (Fig. 48) 1. S[...]

  • Page 38

    38 Fig. 49 — Cooling Charging Char ts, 48TF008 Units Fig. 50 — Cooling Charging Charts, 48TF012 Units[...]

  • Page 39

    39 Flue Gas P assagewa ys — T o inspect the flue collec- tor box and upper areas of the heat excha nger: 1. Remove the combustion blower whe el and motor assem- bly according to directions in Combustion-Air Blower section below . 2. Remove the flue cover to inspect the he at exchanger . 3. Clean all surfaces as required using a wire brush. Combus[...]

  • Page 40

    40 Main Burner s — At the begi nning of each heat ing sea- son, inspect for deterior ation, blockage due to cor rosion or oth- er causes. Observe the mai n burner flames and replac e burners if necessary . REMOV AL AND REPLACEMENT OF GAS TRAIN (Fig. 52 and 53) 1. Shut off manual gas valve. 2. Shut off power to unit and tag disconnect. 3. Slide ou[...]

  • Page 41

    41 NO TE: Dimensions in ( ) are m illimeters . Fig. 54 — Spark Gap Adjust ment 48TFD008 31.4/21.1 kW INPUT (107,000/72,000 BTUH) 48TFE008, 48TFD012 50.4/31.9 kW INPUT/ (172,000/109,000 BTUH) 48TFD014, 48TFE012, 48TFF008 59.8/39.8 kW IN PUT (204,000/136,000 BTUH) 48TFE014, 48TFF012 65.6/43.9 kW IN PUT (224,000/150,000 BTUH)[...]

  • Page 42

    42 TROUBLESHOO TING Table 26 — LED Error Code Service Analysis LEGEND PROBLEM CA USE REMED Y Har dware fa ilure. (LED OF F) Loss of pow er to control module (IGC). Check 5- amp fuse on IGC , power to unit, 24-v circuit break er, and transf orm er . Units w ithout a 24-v circuit breaker hav e an internal ov erload in the 24-v transf or mer . If th[...]

  • Page 43

    43 Table 27 — Cooling Service Troubleshooting PROBLEM C A USE REMED Y Compressor and condenser fan will n ot start. P ower f ailure. Call power compan y . Fuse blown or circuit breaker tripped. Rep lace fuse or reset circ uit breaker . Def ectiv e thermos tat, contactor , transf o rm er , or control rela y . Replace component. Insufficient line v[...]

  • Page 44

    44 Table 28 — Heating Service Troubleshooting Table 29 — EconoMi$er Troubleshooting LEGEND PROBLEM CA USE REMED Y Burners will n ot ignite. Misaligne d spar k ele ctrode s. Check flame ignitio n and sensor electrod e positio ning. Adjust as neede d. No gas at main bur ners. Check gas l ine for air purge as nec essar y . After purgin g gas l in [...]

  • Page 45

    45 Table 30 — Durablade Economizer Troubleshooting LEG END PROBLEM C A USE RE MED Y Damper does not open . Indoor (ev aporator) f an is off . 1. Check to ensure that 24 v ac is prese nt at terminal C1 on the IFC or that 24 v a c is present at the I FO term inal. Chec k whether 24 v ac is present at PL6-1 (red wire) and/or PL6-3 (b lack wire). If [...]

  • Page 46

    Manufactu rer reser ves the rig ht to dis continue , or chan ge at a ny time, spec ificati ons or des igns without notice an d wit hout inc urring obligations. Cata log No. 004-816 Print ed in U.S.A. F o r m 48TF- C1SI Pg 46 1-01 R eplaces: New Book 1 4 Ta b 1 a 6 a Copyright 20 01 Car rier Cor po ration Fig. 55 — Typic al Unit Wiring Schematic L[...]

  • Page 47

    [...]

  • Page 48

    Manufactu rer reser ves the rig ht to dis continue , or chan ge at a ny time, spec ificati ons or des igns without notice an d wit hout inc urring obligations. Catalog N o . 004-8 16 Pr inted in U.S.A. Form 48TF-C 1SI Pg CL- 1 1-01 Repla ces: N ew Book 1 4 Ta b 1 a 6 a Copyright 20 01 Car rier Cor po ration - - - - - - - - - - - - - - - - - - - - -[...]