SS-APG008-EN 21
Parts
Table 3. TWA component selection summary
Table 4. Expansion valves for TTA/TWA 6- through 20-ton applications*
UNIT TWA073D TWA090D TWA120D TWA180E TWA240E
Refrigerant ckts 11122
Minimum step (tons)
67.510 7.5 10
GAS LINE
Tube diameter (in.)
Horizontal (& drops) 1 1/8 1 3/8 1 3/8 1 3/8 1 3/8
Vertical (up)
1 1/8 1 3/8 1 3/8 1 3/8 1 3/8
Access port 3/ckt
Schraeder
valve w/core*
Schraeder
valve w/core*
Schraeder
valve w/core*
Schraeder
valve w/core*
Schraeder
valve w/core*
LIQUID LINE
Tube diameter (in.) 1/2 5/8 1/2 1/2 5/8
Filter drier
DHY01123
(QTY 2)**
DHY01232
(QTY 2)**
DHY01123
(QTY 2)**
DHY01123
(QTY 2)**
DHY01232
(QTY 2)**
Sight glass 1/ckt
GLS00853 GLS00830 GLS00853 GLS00853 GLS00853
Access port 2/ckt
Schraeder
valve w/core*
Schraeder
valve w/core*
Schraeder
valve w/core*
Schraeder
valve w/core*
Schraeder
valve w/core*
Check valve selections (see “Check Valves,” p. 6)
3/8 - VAL08459
1/2 - VAL08460
5/8 - VAL01722
* Valve body VAL01483, valve core COR00006, valve cap CAP00072
** The heat pump products require two filters and two check valves: one set-oriented for liquid in the cooling direction, and one set-oriented for liquid in the heating direction. For units
with line lengths in excess of 80 ft, the included filters must be removed and filters from the table must be installed close to the air handler. See “Liquid Filter Drier,” p. 5.
Refrigerant Manufacturer Tonnage Range Model Number Trane Part
Model Number
w/Check Valve Trane Part
R-410A Sporlan 2-3 ERZE-2-ZGA VAL09476 RCZE-2.0-ZGA VAL08085
R-410A Sporlan 3-4 ERZE-3-ZGA VAL09477 RCZE-3.0-ZGA VAL08086
R-410A Sporlan 4-5 ERZE-4-ZGA VAL09478 RCZE-4.0-ZGA VAL08087
R-410A Sporlan 5-6 ERZE-5-ZGA VAL09479 RCZE-5.0-ZGA VAL08088
R-410A Sporlan 6-8 ERZE-6-ZGA VAL09480 RCZE-6.0-ZGA VAL08089
R-410A Sporlan 8-11 ERZE-8-ZGA VAL09481 ----------------- -----------------
R-410A Sporlan 11-14 ERZE-12-1/2-ZGA VAL09482 ----------------- -----------------
R-410A Sporlan 14-17 ERZE-15-ZGA VAL09483 ----------------- -----------------
R-410A Sporlan 17-23 OZE-20-ZGA VAL09585 ----------------- -----------------
* See “Expansion Valves,” p. 9.
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