Trane 2TTB3 user manual

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2TTB-SVN01A-EN
18-AC56D1-1
Installer’s Guide
Condensing Units
2TTB3
ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES
IMPORTANT — This Document is customer property and is to remain with this unit. Please return to service information
pack upon completion of work.
These instructions do not cover all variations in
systems nor provide for every possible contingency to
5 FT. ABOVE UNIT — UNRESTRICTED
1
be met in connection with installation. All phases of
this insta

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Installer’s Guide b. Isolation hangers should also be used when refriger- BASEPAN TAB REMOVAL ant lines are run in stud spaces or enclosed ceilings. 2 c. Where the refrigerant lines run through a wall or sill, they should be insulated and isolated. d. Isolate the lines from all ductwork. D. SERVICE VALVE OPERATION BRASS LIQUID AND GAS LINE SERVICE VALVES The Brass Liquid and Gas Line Service Valves are factory shipped in the seated position to hold factory charge. The pressure tap service port

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Installer’s Guide LIQUID LINE SERVICE VALVE GAS LINE SERVICE VALVE 3 After the brazing operation of refrigerant lines to both the 9. The liquid line shut-off valve can now be opened. Remove outdoor and indoor unit is completed, the field brazed shut-off valve cap. Fully insert hex wrench into the stem connections must be checked for leaks. Pressurize through and backout counterclockwise until valve stem just touches the service valve ports, the indoor unit and field refrigerant rolled edge (a

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O.D. FAN SPEED SWITCH REF. CIRCUIT RESTRICTIONS RESTRICTED I.D. AIRFLOW SUPERHEAT TXV STUCK OPEN O.D. AIR RECIRCULATION RESTRICTED O.D. AIRFLOW NONCONDENSABLES EXCESSIVE EVAP. LOAD REFRIGERANT OVERCHARGE REFRIGERANT UNDERCHARGE INEFFICIENT COMPRESSOR STUCK COMPRESSOR LOW VOLTAGE FUSE CONTACTOR COIL CONTROL TRANSFORMER LOW VOLTAGE WIRING CONTACTOR CONTACTS START RELAY START CAPACITOR RUN CAPACITOR COMPR. IOL HIGH VOLTAGE WIRING POWER SUPPLY Installer’s Guide E. ELECTRICAL CONNECTIONS G. OPERATION

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Installer’s Guide TYPICAL FIELD HOOK-UP DIAGRAMS PRINTED FROM B152901 P02 NOTE * PRINTED FROM B152903 P02 W2 present only on 2 stage * thermostat and furnace Notes: 1. Be sure power supply agrees with equipment nameplate. LEGEND 2. Power wiring and grounding of equipment must comply with local codes. 3. Low voltage wiring to be No. 18 AWG minimum conductor. FACTORY WIRING 4. ODT-B must be set lower than ODT-A. 5. If outdoor thermostats (ODT) are not used, connect W1 to W2 and W3. FIELD WIRING 1

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Installer’ Installer’s Guide s Guide SUBCOOLING CHARGING IN COOLING ABOVE 55°F OD AMBIENT The Trane company has always recommended installing Trane approved matched indoor and outdoor systems. R-22 SUBCOOLING CHARGING TABLE All 13 SEER Trane split systems are ARI rated with only DESIGN SUBCOOLING VALUES (°F) TXV indoor systems. LIQUID TEMP. 810 12 14 The benefits of installing approved indoor and outdoor split (°F) systems are maximum efficiency, optimum performance and LIQUID LINE PRESSURE (psi

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Installer’s Guide 2TTB3 OUTLINE DRAWING NOTE: ALL DIMENSIONS ARE IN MM (INCHES). MODELS BASE FIG. A B C D E F G H J K 2TTB3018A 2 2 651 (25-5/8) 724 (28-1/2) 651 (25-5/8) 5/8 1/4 127 (5) 57 (2-1/4) 181 (7-1/8) 44 (1-3/4) 457 (18) 2TTB3024A 2 2 832 (32-3/4) 724 (28-1/2) 651 (25-5/8) 3/4 5/16 137 (5-3/8) 65 (2-5/8) 210 (8-1/4) 57 (2-1/4) 457 (18) 2TTB3030A 3 2 832 (32-3/4) 829 (32-5/8) 756 (29-3/4) 3/4 5/16 137 (5-3/8) 86 (3-3/8) 210 (8-1/4) 79 (3-1/8) 508 (20) 2TTB3036A 3 2 832 (32-3/4) 829 (32-5

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