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Digit 19 — Ambient Control
0 = Standard
1 = 0° Fahrenheit
Digit 20 — Agency Approval
0 = None (cULus Gas Heater, see note)
1 = cULus
Note: Includes cULus classified gas heating
section only when second digit of Model
No. is a "F."
Digit 21 — Miscellaneous
0 = Unit Mounted Terminal Block
A = Unit Mounted Disconnect Switch
B = Unit Mounted Disconnect Switch with High
Fault SCCR
D = Unit Mounted Disconnect Switch with
Convenience Outlet
E = Unit Mounted Disconnect Switch with High
Fault SCCR and Convenience Outlet
Digit 22 — Refrigeration Options
0 = Without Hot Gas Bypass
B = Hot Gas Bypass
Digit 23 — Economizer Control Options
C = Economizer Control with Comparative Enthalpy
D = Economizer with Differential Dry Bulb
Z = Economizer Control with Reference Enthalpy
W = Economizer Control with Dry Bulb
Digit 24 — Damper Options
0 = Standard Dampers
E = Low Leak Economizer Dampers
U = Ultra Low Leak Economizer Dampers and Ultra
Low Leak motorized relief dampers
Digit 25 — Power Meter
0 = None
1 = Power Meter
Digit 26 — Efficiency Options
0 = Standard Efficiency Unit
H = High Efficiency Unit
Digit 27 — Condenser Coil Options
0 = Air Cooled Aluminum Condenser Coil
J = Corrosion-Protected Condenser Coil
Digit 28 — Rapid Restart
0 = Non-Rapid Restart
R = Rapid Restart
RT-SVX072D-EN
Digit 29 — Miscellaneous
0 = Motors without Internal Shaft Grounding
A = Motors with Internal Shaft Grounding
Digit 30 — Expansion Module
0 = None
E = Expansion Module
Digit 31 — Miscellaneous
N = Ventilation Override Module
Digit 32 — Service Options
0 = None
R = Extended Grease Lines
3 = Stainless Steel Sloped Drain Pan
4 = Stainless Steel Sloped Drain Pan with Grease
Lines
Digit 33 — Cabinet Options
0 = Standard Panels
1 = Standard Panels with Double Wall
T = Hinged Access Doors
2 = Hinged Access Doors with Double Wall
U = IRU - with Standard Panels
3 = IRU - with Standard Panels with Double Wall
W = IRU - with Hinged Access Doors
4 = IRU - with Hinged Access Doors with Double
Wall
Y = IRU with SST - with Standard Panels
5 = IRU with SST - with Standard Panels with
Double Wall
Z = IRU with SST - with Hinged Access Doors
6 = IRU with SST - with Hinged Access Doors with
Double Wall
Digit 34 — Filter Monitor
0 = None
1 = Pre-Evaporator
2 = Pre-Evaporator and Final Filter
Digit 35 — BAS/Communication Options
0 = None
7 = Trane LonTalk Communication Interface
Module
8 = ModBus®
M = BACnet® Communication Interface (BCI)
Module
W = Air-Fi® Wireless
Digit 36 — Isolators
8 = Spring Isolators
Model Number Description
Digit 37 —Airflow
A = Downflow Supply/Upflow Return
B = Horizontal Right Supply/ Horizontal End Return
C = Horizontal Right Supply/Upflow Return
E = Downflow Supply/Horizontal End Return
11
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