Service Facts Split System Cooling 4TTB18E1000A, 4TTB24E1000A 4TTBD1000B, 4TTB36D1000B 4TTB3-SF-1B CAUTION UNIT CONTAINS R-410A REFRIGERANT R-410A OPERATING PRESSURE EXCEEDS THE LIMIT OF R-22. PROPER SERVICE EQUIPMENT IS REQUIRED. FAILURE TO USE PROPER SERVICE TOOLS MAY RESULT IN EQUIPMENT DAMAGE OR PERSONAL INJURY. SERVICE USE ONLY R-410A REFRIGERANT AND APPROVED POE COMPRESSOR OIL. IMPORTANT This document contains a wiring diagram, a parts list, and service information. This is customer property and is to remain with this unit. Please return to service information pack upon completion of work. WARNING: HAZARDOUS VOLTAGE - DISCONNECT POWER and DISCHARGE CAPACITORS BEFORE SERVICING OUTDOOR UNIT 12 POWER CONNS. V/PH/HZ 3 MIN. BRCH. CIR. AMPACITY BR CIR PROT RTG MAX. (AMPS) COMPRESSOR. USED -. SPEEDS VOLTS/PH/HZ R.L. AMPS 7 - L.R. AMPS FACTORY INSTALLED START COMPONENTS 8 INSUL/SOUND BLANKET COMPRESSOR HEAT OUTDOOR FAN DIA. (IN.) -. USED TYPE DRIVE -. SPEEDS CFM @ 0.0 IN. W.G. 4. MOTORS - HP MOTOR SPEED R.P.M. VOLTS/PH/HZ F.L. AMPS OUTDOOR COIL TYPE ROWS - F.P.I. FACE AREA (SQ. FT.) TUBE SIZE (IN.) REFRIGERANT LBS R-410A (O.D. UNIT) 5 FACTORY SUPPLIED LINE SIZE - IN. O.D. GAS 6 LINE SIZE - IN. O.D. LIQ. 6 CHARGING SPECIFICATION SUBCOOLING DIMENSIONS CRATED (IN.) WEIGHT SHIPPING (LBS.) NET (LBS.) PRODUCT SPECIFICATIONS 4TTB18E1000A 4TTB24E1000A 8/2/1/ 8/2/1/ 9 12 RECIP RECIP 1-1 1-1 8/2/1/ 8/2/1/ 6.4-40 8.9-48.5 PROPELLER 23-1 DIRECT - 1 2745 1-1/8 8 0/2/1/ 0.74 SPINE FIN 1-24 12.89 4 LBS., OZ. 5/8 8 F H X W X D 34 x.1 x 33 191 165 PROPELLER 23-1 DIRECT - 1 2745 1-1/8 8 0/2/1/ 0.74 SPINE FIN 1-24 12.89 WARNING 5 LBS., 8 OZ. 5/8 10 F H X W X D 34 x.1 x 33 196 169 4TTBD1000B 8/2/1/ RECIP 1-1 8/2/1/ 11.3-68.2 PROPELLER 23-1 DIRECT - 1 2745 1-1/8 8 0/2/1/ 0.74 SPINE FIN 1-24 12.89 5 LBS., 2 OZ. 3/4 10 F H X W X D 34 x.1 x 33 0 173 THIS INFORMATION IS INTENDED FOR USE BY INDIVIDUALS POSSESSING ADEQUATE BACKGROUNDS OF ELECTRICAL AND MECHANICAL EXPERIENCE. ANY ATTEMPT TO REPAIR A CENTRAL AIR CONDITIONING PRODUCT MAY RESULT IN PERSONAL INJURY AND OR PROPERTY DAMAGE. THE MANUFACTURER OR SELLER CANT BE RESPONSIBLE FOR THE INTERPRETATION OF THIS INFORMATION, R CAN IT ASSUME ANY LIABILITY IN CONNECTION WITH ITS USE. 4TTB36D1000B 8/2/1/ 18 RECIP 1-1 8/2/1/ 14.0-63 PROPELLER 23-1 DIRECT - 1 2805 1-1/8 8 0/2/1/ 0.74 SPINE FIN 1-24 18.75 6 LBS., 9 OZ. 3/4 10 F H X W X D 38 x.1 x 33 217 190 LINE TYPE 1 Certified in accordance with the Air-Source Unitary Air-conditioner Equipment certification program, which is based on AHRI standard 210/240. 2 Rated in accordance with AHRI standard 270. 3 Calculated in accordance with Natl. Elec. Codes. Use only HACR circuit breakers or fuses. 4 Standard Air Dry Coil Outdoor 5 This value approximate. For more precise value see unit nameplate. 6 Max. linear length ft.; Max. lift - Suction ft.; Max lift - Liquid ft. For greater length consult refrigerant piping software Pub. No. 32-3312- 0* (* denotes latest revision). 7 This value shown for compressor RLA on the unit nameplate and on this specification sheet is used to compute minimum branch circuit ampacity and max. fuse size. The value shown is the branch circuit selection current. 8 No means no start components. Yes means quick start kit components. PTC means positive temperature coefficient starter. HOT SURFACE DO T TOUCH TOP OF COMPRESSOR. May cause minor to severe burning. CONTAINS REFRIGERANT SYSTEM CONTAINS OIL AND REFRIGERANT UNDER HIGH PRESSURE. RECOVER REFRIGERANT TO RELIEVE PRESSURE BEFORE OPENING SYSTEM. Failure to follow proper procedures can result in personal illness or injury or severe equipment damage. TUBING INFORMATION REFRIGERANT TO ADD AT SPECIFIED ADDITIONAL LENGTH Suction Liquid ft ft 40 ft 50 ft ft 5/8" " 3 oz 8 oz 14 oz oz oz 3/4" " 3 oz 9 oz oz 21 oz 27 oz CAUTION CAUTION CAUTION RECONNECT ALL GROUNDING DEVICES. ALL PARTS OF THIS PRODUCT CAPABLE OF CONDUCTING ELECTRICAL CURRENT ARE GROUNDED. IF GROUNDING WIRES, SCREWS, STRAPS, CLIPS, NUTS OR WASHERS USED TO COMPLETE A PATH TO GROUND ARE REMOVED FOR SERVICE, THEY MUST BE RETURNED TO THEIR ORIGINAL POSITION AND PROPERLY FASTENED. TICE: The manufacturer has a policy of continuous product and product data improvement and it reserves the right to change design and specifications without notice. 11 Trane 09/11
SCHEMATIC DIAGRAM 2 4TTB3-SF-1B
WIRING DIAGRAM 4TTB3-SF-1B 3
SUBCOOLING CHARGING IN COOLING ABOVE 55 F OD AMBIENT The manufacturer has always recommended installing matched indoor and outdoor systems. All split systems are AHRI rated with only TXV indoor systems. The benefits of installing approved indoor and outdoor split systems are maximum efficiency, optimum performance and the best overall system reliability. The following charging methods are therefore prescribed for systems with indoor TXVs. 1. Subcooling (in the cooling mode) is the only recommended method of charging above 55 F ambient temperatures. 2. For best results the indoor temperature should be kept between 70 F to 80 F. Add system heat if needed. 3. At startup, or whenever charge is removed or added, the system must be operated for a minimum minutes to stabilize before accurate measurements can be made. 4. Measure Liquid Line Temperature and Refrigerant Pressure at service valves. 5. Determine total refrigerant line length, and height (lift) if indoor section is above the condenser. 6. Determine the Design Subcool Charging Temperature from the unit nameplate. 7. Locate this value in the appropriate column of the Subcooling Charging Table. Locate your liquid line temperature in the left column of the table, and the intersecting liquid line pressure under your nameplate subcool value column. Add refrigerant to raise the pressure to match the table, or remove refrigerant to lower the pressure. Again, wait minutes for the system conditions to stabilize before adjusting charge again. 8. When system is correctly charged, you can refer to System Pressure Tables (on page 7) to verify typical performance. LIQUID TEMP ( F) R-410A REFRIGERANT CHARGING CHART DESIGN SUBCOOLING ( F) 8 9 10 11 12 13 14 LIQUID GAGE PRESSURE (PSI) 55 179 182 185 188 191 195 198 195 198 1 4 8 211 2 65 211 2 218 222 2 229 232 70 229 232 236 240 243 247 1 75 247 1 5 9 263 267 271 80 267 271 275 279 283 287 291 85 287 291 296 0 4 9 313 90 9 313 318 322 327 331 336 95 331 336 341 346 351 355 3 100 355 3 365 370 376 381 386 105 381 386 391 396 402 407 413 110 407 413 418 424 429 435 441 1 435 441 446 452 458 464 470 1 464 470 476 482 488 495 501 1 495 501 507 514 5 527 533 Refer to Service Facts or Installer's Guide for charging method. From Dwg. D4557P01 Rev. 2 1 1/2 Ton SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE) 2 Ton SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE) REFRIGERANT LINE LIFT (FEET) 50 40 10 0 Add 3 Add 2 Add 1 of Subcooling Use Design Subcool Value 10 40 REFRIGERANT LINE LIFT (FEET) 50 40 10 0 Add 4 Add 2 Add 1 of Subcooling Use Design Subcool Value 10 40 TOTAL REFRIGERANT LINE LENGTH (FEET) TOTAL REFRIGERANT LINE LENGTH (FEET) 2 1/2 Ton 3 Ton SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE) SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE) REFRIGERANT LINE LIFT (FEET) 50 40 10 0 Add 4 Add 3 Add 2 of Subcooling Add 1 of Subcooling Use Design Subcool Value 10 40 TOTAL REFRIGERANT LINE LENGTH (FEET) REFRIGERANT LINE LIFT (FEET) 50 40 10 0 Add 5 Add 4 Add 3 of Subcooling Add 2 Add 1 of Subcooling Use Design Subcool Value 10 40 TOTAL REFRIGERANT LINE LENGTH (FEET) 4 4TTB3-SF-1B
TROUBLESHOOTING Compressor fails to start Contactor check Is contactor energized? (contacts closed) Go To: Compressor won t run Check for 24 volts AC across contactor coil Is voltage present at contactor coil? Replace contactor Check control transformer and control fuse Is the control transformer and fuse good? Jumper R to Y low voltage terminals at thermostat sub base. Does the contactor energize? Replace the room thermostat Repair or replace transformer or fuse. Investigate cause for failure (possible short in field wiring) Repair or replace connecting wiring Single Pole Contactor (MS)* Double Pole Contactor (MS)* OUT T2 T1 T2 T1 OUT HIGH VOLTAGE Contactor Coil 24 VAC HIGH VOLTAGE IN L2 L1 L2 L1 IN *Refer to Wiring Diagram to determine if a single pole or double pole contactor is used. Compressor won t run Contactor is closed Check for high voltage to contactor Is high voltage present at T1 and T2? Check power supply from disconnect and/or breaker panel. Check for open IOL (Internal Overload) Check resistance of C to S and C to R Does the resistance check show an open circuit from C to S or C to R? Check for open windings. Does a resistance check show an open circuit between R and S? Check for locked rotor Is voltage present at C to S and C to R with locked rotor amps on C? Check wiring to compressor C, S and R Allow compressor time to cool and re-test Replace the compressor Check Start- Capacitor and Relay (if present) and Run Capacitor Do the start components and run capacitor check good? Replace start components and/ or run capacitor Replace the compressor 4TTB3-SF-1B 5
REFRIGERANT CIRCUIT 4TTB018 24E1, 0D1 Printed from C145989 4TTB36D1 Printed from D5887 6 4TTB3-SF-1B
PRESSURE TABLES FOR 4TTB***1 4TXC****BC Cooling with Thermal Expansion Valve Outdoor Temperature (Degree F) Outdoor Size & Coil OD *** 18E 24E D 36D 42D 3 48D D Coil **** A018 B0 B031 B036 C043 C049 D064 Liquid Pressure (PSIG) 1 4 475 490 495 495 495 505 110 435 450 455 4 465 4 475 105 405 4 435 440 435 435 450 100 380 395 405 410 405 405 4 95 355 365 380 380 380 380 390 901 3 340 355 355 355 4 350 365 85 5 3 3 335 3 3 340 80 285 295 310 310 5 5 3 75 265 275 285 290 290 285 295 70 245 5 270 270 5 265 280 65 2 235 0 0 245 245 5 210 2 2 2 2 2 235 Outdoor Size & Coil OD *** 18E 24E D 36D 42D 3 48D D Coil **** A018 B0 B031 B036 C043 C049 D064 Outdoor Temp. (Degree F) 110 100 90 1 80 70 Indoor Wet Bulb (Degree F) Suction Pressure (PSIG) 71 8 7 2 3 2 3 0 67 148 0 143 144 142 145 141 63 139 143 135 135 133 136 132 59 1 135 126 127 124 128 124 71 4 4 147 148 147 149 146 67 144 145 139 140 138 140 136 63 135 138 1 131 129 131 128 59 126 131 122 123 121 123 119 71 149 149 144 145 144 145 142 67 2 140 141 135 136 135 4 136 132 63 131 134 127 127 126 128 124 59 123 128 119 119 117 1 116 71 146 146 141 141 141 142 138 67 137 139 132 133 132 129 129 63 128 132 124 1 123 1 121 59 1 1 116 117 1 117 113 71 143 143 138 138 138 138 135 67 134 135 129 1 129 1 126 63 1 129 121 122 121 122 118 59 117 122 113 114 112 114 110 71 140 140 134 135 135 135 132 67 131 132 126 127 126 127 123 63 122 1 118 119 118 119 1 59 114 119 110 110 110 112 107 COOLING PERFORMANCE CAN BE CHECKED WHEN THE OUTDOOR TEMP IS ABOVE 65 DEG F. TO CHECK COOLING PERFORMANCE, SELECT THE PROPER INDOOR CFM, ALLOW PRESSURES TO STABILIZE. MEASURE INDOOR WET BULB TEMPERATURE, OUTDOOR TEMPERATURE, LIQUID AND SUCTION PRESSURES. ON THE TABLE LOCATE OUTDOOR TEMPERATURE (1); LOCATE INDOOR WET BULB (2); LOCATE MODEL OUTDOOR. (3); FIND INTERSECTION BETWEEN 1, 2, & 3 (4) FIND TARGET PRESSURE. EXAMPLE: (1) OUTDOOR TEMP. 90 F. (2) INDOOR WET BULB 67 F. (3) OD 4TTB42 ACTUAL: (4) LIQUID PRESSURE IS 355 PSIG LIQUID PRESSURE SHOULD BE +/- 10 PSI OF CHART (5) SUCTION PRESSURE IS 135 PSIG SUCTION PRESSURE SHOULD BE +/- 3 PSIG OF CHART 4TTB3-SF-1B 7
The manufacturer has a policy of continuous product and product data improvement and it reserves the right to change design and specifications without notice. 09/11