5 FT. ABOVE UNIT — UNRESTRICTED for the interpretation of this information, nor can it assume any liability in connection with its use. The following instructions cover 4TWR4 & 4TWR2 Heat Pump Units. NOTE: These outdoor units are designed to be installed with approved/matched Trane indoor systems.
CAUTION is not the application used please refer to application If using existing refrigerant lines make certain that all joints bulletin “Trane APB2001-02”. are brazed, not soldered. 3. The support pad must NOT be in direct contact with any structure. Unit must be positioned a minimum of 12" from Condensing units have provisions for braze connections.
Installer’s Guide BRASS GAS LINE SERVICE VALVE GAS LINE SERVICE VALVE The Brass Gas Line Service Valve is shipped in the closed position to hold the factory refrigerant charge. The pressure 1/4 TURN ONLY COUNTERCLOCKWISE tap service port (when depressed) opens only to the field FOR FULL OPEN POSITION brazing side when the valve is in the closed position.
Installer’s Guide 3. Install a separate disconnect switch at the outdoor unit. NOTE: Unnecessary switching of hoses can be avoided and com- 4. Ground the outdoor unit per local code requirements. plete evacuation of all lines leading to sealed system can 5.
Installer’s Guide 2. TST = Test (Shorting TEST_COMMON to this pin I. OPERATIONAL AND speeds up all defrost board timings.) CHECKOUT PROCEDURES 3. FRC_DFT = Forced Defrost (Short TEST_COMMON to Final phases of this installation are the unit Operational and this pin for two (2) seconds to initiate a forced defrost.
Installer’s Guide 4TWR4 & 4TWR2 OUTLINE DRAWING NOTE: ALL DIMENSIONS ARE IN MM (INCHES). MODELS BASE FIG. 4TWR2018A 832 (32-3/4) 829 (32-5/8) 756 (29-3/4) 143 (5-5/8) 92 (3-5/8) 210 (8-1/4) 79 (3-1/8) 508 (20) 4TWR2024A 832 (32-3/4) 829 (32-5/8) 756 (29-3/4)
Installer’s Guide MOUNTING HOLE LOCATION NOTE: ALL DIMENSIONS ARE IN MM (INCHES). NOTE: For model base size, see table on page 6. From Dwg. D152637 Rev. 1 18-BC51D1-3...
S - Secondary Causes - 3 Phase Only P.I. 04/05 Trane A business of Trane has a policy of continuous product and product data improvement and it reserves the right to change American Standard Companies www.trane.com design and specifications without notice.