Trane Odyssey TTA0724 A/D B Series Application Manual page 26

Parts
Table 3. Component selection for TWA heat pump units 6–20 tons
Unit TWA0724*A
Refrigerant ckts
1
Minimum step (tons)
6
Tube diameter (in.)
Horizontal (& drops)
1 1/8
Vertical (up)
7/8
Schraeder valve
(a)
Access port 3/ckt
w/core
Tube diameter (in.)
1/2
(b)
Filter drier
DHY01608
Sight glass 1/ckt
GLS00853
Schraeder valve
(a)
Access port 2/ckt
w/core
Additional oil charge
0 oz
Notes:
1. On Access ports 2/ or 3/ckt: Valve body VAL01483, valve core COR00006, valve cap CAP00072
2. On Filter drier: 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.".
3. Check valve selections: 3/8 - VAL08459, 1/2 - VAL08460, 5/8 - VAL01722, 7/8 - VAL07030. (see "Check Valves")
Table 4. Expansion valves for TTA/TWA applications 6–20 tons
Refrigerant
Manufacturer
Sporlan
R-410A
Sporlan
R-410A
Sporlan
R-410A
Sporlan
R-410A
Sporlan
R-410A
Sporlan
R-410A
Sporlan
R-410A
Sporlan
R-410A
Sporlan
R-410A
Sporlan
R-410A
Notes:
1. See Expansion Valves
2. The RZE valves may also be called BBIZE.
3. The tonnage range is the maximum design tonnage for the system. The TXV is capable of additional turn down below the maximum capacity.
Contact your local Trane office for questions on TXV turndown. When sizing TXVs, select the TXV where the design tonnage is close to the
middle of the device.
26
TWA0724*D TWA0904*A
2 1
3 5
3/4 1 1/8
3/4 1 1/8
Schraeder valve Schraeder valve
w/core w/core
3/8 1/2
DHY01467
DHY01608
(Qty 2)
GLS00852 GLS00853
Schraeder valve Schraeder valve
w/core w/core
0 oz 0 oz
Tonnage
Model Number
Range
2-3 RZE-2-GA
3-4 RZE-3-GA
4-5 RZE-4-GA
5-6 RZE-5-GA
6-8 RZE-6-GA
8-11 RZE-8-GA
11-14 RZE-12-1/2-GA
14-17 RZE-15-GA
17-23 OZE-20-GA
23-28 OZE-25-GA
TWA0904*D TWA1204*A
2 1
3.75 6.7
GAS LINE
7/8 1-3/8
7/8 1 1/8
Schraeder valve Schraeder valve
w/core w/core
LIQUID LINE
3/8 1/2
DHY01467
DHY01608
(Qty 2)
GLS00852 GLS00853
Schraeder valve Schraeder valve
w/core w/core
0 oz 0 oz
Model Number w/
Trane Part
Check Valve
VAL09476 RCZE-2-GA
VAL09477 RCZE-3-GA
VAL09478 RCZE-4-GA
VAL09479 RCZE-5-GA
VAL09480 RCZE-6-GA
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VAL09481
———
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VAL09482
———
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VAL09483
———
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VAL09585
———
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VAL09583
———
TWA1204*D TWA1804*D
2 2
6.7 7.5
1 1/8 1 1/8
7/8 1 1/8
Schraeder valve Schraeder valve
w/core w/core
1/2 1/2
DHY01467 DHY01608
(Qty 2) (Qty 2)
GLS00853 GLS00853
Schraeder valve Schraeder valve
w/core w/core
0 oz 0 oz
Trane Part
VAL08085
VAL08086
VAL08087
VAL08088
VAL08089
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SS-APG008H-EN
TWA2404*D
2
10
1 3/8
1 1/8
Schraeder valve
w/core
1/2
DHY01608
(Qty 2)
GLS00853
Schraeder valve
w/core
0 oz