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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
2
A
= 5 kW (1 phase)
B
= 6 kW (3 phase)
C
= 9 kW (3 phase)
2
D
= 10 kW (1 phase)
E
= 12 kW (3 phase)
2
F
= 14 kW (1 phase)
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:
Applicable 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
RT-SVX21AC-EN
Digit 11 — Minor Design Sequence
3
A
= First Sequence
4
B
= Second Sequence
Digit 12, 13 — Service Sequence
** = Factory Assigned
Digit 14 — Fresh Air Selection
0
= No Fresh Air
A
= Manual Outside Air Damper
5
0–50%
B
= Motorized Outside Air Damper
6
0–50%
C
= Economizer, Dry Bulb 0–100%
without Barometric Relief
D
= Economizer, Dry Bulb 0–100% with
7
Barometric Relief
E
= Economizer, Reference Enthalpy
0–100% without Barometric Relief
F
= Economizer, Reference Enthalpy
0–100% with Barometric Relief
G
= Economizer, Comparative Enthalpy
0–100% without Barometric Relief
H
= Economizer, Comparative Enthalpy
0–100% with Barometric Relief
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
9
0
= Standard Drive
1
= Oversized Motor
2
= Optional Belt Drive Motor
11,12
6
= Single Zone VAV
7
= Multi-Speed Indoor Fan
E
= VAV Supply Air Temperature
Controls Standard Motor
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
13
Condenser Coil
3
= Black Epoxy Coil Pre-Coated
Condenser Coil with Hail Guard
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
Note:
Applicable to Digit 1, Y models
only.
B
= Through-the-Base Gas Piping
C
= Through-the-Base Electric and Gas
Piping
Digit 19 — Disconnect/Circuit
7
Breaker (three-phase only)
0
= No Disconnect/No Circuit Breaker
1
= Unit Mounted/Non-Fused
Disconnect
7,8
2
= Unit Mounted Circuit Breaker
Digit 20 — Convenience Outlet
7,8
0
= No Convenience Outlet
7,8
A
= Unpowered Convenience Outlet
B
= Powered Convenience Outlet
7,8
(three-phase only)
Digit 21 — Communications
8
Options
0
= No Communications Interface
1
= Trane® Communications Interface
2
= LonTalk® Communications
Interface
3
= Novar 2024 Controls
4
= Novar 3051 Controls without Zone
Sensor
5
= Novar 3051 Controls Interface with
18
DCV
10
6
= BACnet® Communications
Interface
13
7
= Trane® Air-Fi® Communications
Interface
12
Digit 22 — Refrigeration System
Option
0
= Standard Refrigeration System
B
= Dehumidification Option
Digit 23 — Refrigeration Controls
Note:
Applicable to Digit 7 = E, F, G,H.
0
= No Refrigeration Control
1
= Frostat™
Digit 24 — Smoke Detector
0
= No Smoke Detector
A
= Return Air Smoke Detector
B
= Supply Air Smoke Detector
C
= Supply and Return Air Smoke
Detectors
D
= Plenum Smoke Detector
Digit 25 — System Monitoring
Controls
0
= No Monitoring Control
14
1
= Clogged Filter Switch
2
= Fan Filter Switch
3
= Discharge Air Sensing Tube
4
= Clogged Filter Switch and Fan
Filter
Switch
15
16
16
15
15
17
18
18
19
20
21,22
23
24,25
26
27,28
27,28
29
29
29
29
29
7
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