RT-SVX21AC-EN 7
Model Number Descriptions - 3 to 10 Tons (T/Y)
Digit 1 — Unit Type
T = DX Cooling
Y = DX Cooling, Gas Heat
Digit 2 — Efficiency
S = Standard Efficiency
H = High Efficiency
Digit 3 — Airflow
C = Convertible
Digit 4,5,6 — Nominal Gross
Cooling Capacity (MBh)
036 = 3 Ton
048 = 4 Ton
060 = 5 Ton
072 = 6 Ton
074 = 6 Ton, Dual Compressor
090 = 7.5 Ton, Single Compressor
092 = 7.5 Ton, Dual Compressor
102 = 8.5 Ton
120 = 10 Ton
Digit 7 — Major Design Sequence
Digit 8 — Voltage Selection
1 = 208/230/60/1
3 = 208–230/60/3
4 = 460/60/3
W = 575/60/3
Digit 9 — Unit Controls
E = Electromechanical
R = ReliaTel™ Microprocessor
Digit 10 — Heating
Note: Applicable to Digit 1, T models
only.
0 = No Electric Heat
A = 5 kW (1 phase)
2
B = 6 kW (3 phase)
C = 9 kW (3 phase)
D = 10 kW (1 phase)
2
E = 12 kW (3 phase)
F = 14 kW (1 phase)
2
G = 18 kW (1 and 3 phase)
J = 23 kW (3 phase)
K = 27 kW (3 phase)
N = 36 kW (3 phase)
P = 54 kW (3 phase)
Note: App
licable to Digit 1, Y
models
only.
L = Low Heat
M = Medium Heat
H = High Heat
X = Low Heat, Stainless Steel Heat
Exchanger
Y = Medium Heat, Stainless Steel Heat
Exchanger
Z = High Heat, Stainless Steel Heat
Exchanger
Digit 11 — Minor Design Sequence
A = First Sequence
3
B = Second Sequence
4
Digit 12, 13 — Service Sequence
** = Factory Assigned
Digit 14 — Fresh Air Selection
0 = No Fresh Air
A = Manual Outside Air Damper
0–50%
5
B = Motorized Outside Air Damper
0–50%
6
C = Economizer, Dry Bulb 0–100%
without Barometric Relief
7
D = Economizer, Dry Bulb 0–100% with
Barometric Relief
7
E = Economizer, Reference Enthalpy
0–100% without Barometric Relief
7,8
F = Economizer, Reference Enthalpy
0–100% with Barometric Relief
7,8
G = Economizer, Comparative Enthalpy
0–100% without Barometric Relief
7,8
H = Economizer, Comparative Enthalpy
0–100% with Barometric Relief
7,8
K = Low Leak Economizer with
Barometric Relief
M = Low Leak Economizer with
Barometric Relief
P = Low Leak Economizer with
Comparative Enthalpy with
Barometric Relief
Digit 15 — Supply Fan/Drive Type/
Motor
0 = Standard Drive
9
1 = Oversized Motor
2 = Optional Belt Drive Motor
10
6 = Single Zone VAV
11,12
7 = Multi-Speed Indoor Fan
13
E = VAV Supply Air Temperature
Controls Standard Motor
12
Digit 16 — Hinged Service Access/
Filters
0 = Standard Panels/Standard Filters
A = Hinged Access Panels/Standard
Filters
B = Standard Panels/2” MERV 8 Filters
C = Hinged Access Panels/2” MERV 8
Filters
D = Standard Panels/2” MERV 13
Filters
E = Hinged Access Panels/2” MERV 8
Filters
Digit 17 — Condenser Coil
Protection
0 = Standard Coil
1 = Standard Coil with Hail Guard
2 = Black Epoxy Coil Pre-Coated
Condenser Coil
13
3 = Black Epoxy Coil Pre-Coated
Condenser Coil with Hail Guard
14
4 = CompleteCoat™ with Condenser
Coil
5 = CompleteCoat™ with Hail Guard
Digit 18 — Through-the-Base
Provisions
Note: Applicable to Digit 1, T or Y
models only.
0 = No Through-the-Base Provisions
A = Through-the-Base Electric
15
Note: Applicable to Digit 1, Y models
only.
B = Through-the-Base Gas Piping
16
C = Through-the-Base Electric and Gas
Piping
16
Digit 19 — Disconnect/Circuit
Breaker (three-phase only)
0 = No Disconnect/No Circuit Breaker
1 = Unit Mounted/Non-Fused
Disconnect
15
2 = Unit Mounted Circuit Breaker
15
Digit 20 — Convenience Outlet
0 = No Convenience Outlet
A = Unpowered Convenience Outlet
B = Powered Convenience Outlet
(three-phase only)
17
Digit 21 — Communications
Options
8
0 = No Communications Interface
1 = Trane® Communications Interface
2 = LonTalk® Communications
Inter
face
3 = Novar 2024 Controls
18
4 = Novar 3051 Controls without Zone
Sensor
18
5 = Novar 3051 Controls Interface with
DCV
18
6 = BACnet® Communications
Interface
7 = Trane® Air-Fi® Communications
Interface
19
Digit 22 — Refrigeration System
Option
0 = Standard Refrigeration System
20
B = Dehumidification Option
21,22
Digit 23 — Refrigeration Controls
Note: Applicable to Digit 7 = E, F, G,H.
0 = No Refrigeration Control
23
1 = Frostat™
24,25
Digit 24 — Smoke Detector
26
0 = No Smoke Detector
A = Return Air Smoke Detector
27,28
B = Supply Air Smoke Detector
C = Supply and Return Air Smoke
Detectors
27,28
D = Plenum Smoke Detector
Digit 25 — System Monitoring
Controls
0 = No Monitoring Control
29
1 = Clogged Filter Switch
29
2 = Fan Filter Switch
29
3 = Discharge Air Sensing Tube
29
4 = Clogged Filter Switch and Fan
Filter
Switch
29