Lennox R-454B Rooftop Units Comparison
Product Overview
This document provides a comprehensive comparison of Lennox R-454B rooftop units across different models: LTM, Lumière, Xion™, and Raider®. The comparison covers various aspects including electrical and gas/electric configurations, efficiency levels, control systems, accessibility, reliability, and indoor air quality features.
Model Specifications Comparison
Table A: Unit Specifications
| Brand | Modèle LTM | Lumière | Xion™ | Raider® |
|---|---|---|---|---|
| Electricity/Electric | 3 to 25 tons (LCM) | 3 to 30 tons (LCT) | 2 to 25 tons (LCX) | 3 to 12.5 tons (ZCD) |
| Gas/Electricity | 3 to 25 tons (LGM) | 3 to 30 tons (LGT) | 2 to 25 tons (LGX) | 3 to 12.5 tons (ZGD) |
| Heat Pump | - | 3 to 25 tons (LHT) | 2 to 20 tons (LHX) | 3 to 10 tons (ZHD) |
| Dual Fuel | - | 3 to 25 tons (LDT) | - | - |
| Efficiency Levels | Ultra-high | Maxi | Standard | Standard |
| Unit Controller | Lennox CORE® | Lennox® BASE | Lennox® CORE Lite | Base A2L Controller |
| Humidity Control | Humiditrol+™ (HGRH Modulating), EDH | Humiditrol® (HGRH On/Off) | Humiditrol® (HGRH On/Off) | - |
| Access Panels | Standard | Standard | Option (factory) | All models |
| Independent Circuits | All models | All models | All models | Replacement support |
| Footprint | Lennox | Lennox | Lennox | Raider® |
Control Types
| Modèle LTM | Lumière | Xion™ | Raider® | |
|---|---|---|---|---|
| Thermostat 24 V | Standard | Standard | Standard | Standard |
| Zone Sensor | Standard | Standard | Standard | - |
| Humidity Control | 24V, 0-10VDC, CS8500, BAS | 24V, 0-10VDC, CS8500, BAS | 24V, 0-10VDC, CS8500, BAS | - |
| BACnet® MS/TP | Standard | Standard | Standard | - |
| IP BACnet® | Option (field/factory) | Option (field/factory) | Option (field) - Q3 2025 | 3rd party (field) |
| LonTalk® | Option (factory) | Option (factory) | - | - |
| LSE Novar® | Option (factory) | Option (factory) | - | - |
| Return Air Control | Standard | MZVAV - Standard | Standard | - |
Box Size - A
| 3 to 6 tons | 3 to 6 tons | 2 to 6 tons | 3 to 6 tons | |
|---|---|---|---|---|
| Cooling Stages | Variable speed | 2 | 2-5 T (1) 6 T (2) | 3-5 T (1) 6 T (2) |
| Gas Heating Stages | 2 | Up to 2 | Up to 2 | Up to 2 |
| Fan Type | Direct drive | Direct drive, belt drive | Direct drive, belt drive | Direct drive, belt drive |
| Fan Control | SZVAV, MZVAV | MSAV® | CAV, MSAV® | CAV, MSAV® |
| SEER2/IEER (up to) | 21.2 / 23.1 | 17.5 / 17.3 | 14 / 15.5 | 13.4 / 15.5 |
| EER (up to) | 14.3 | 13.5 | 11.5 | 11.0 |
Box Size - B
| 7.5 to 12.5 tons | 6.5 to 12.5 tons | 7.5 to 12.5 tons | 7.5 to 12.5 tons | |
|---|---|---|---|---|
| Cooling Stages | Variable speed | 3 | 3 | 3 |
| Gas Heating Stages | 2 | 2 | 2 | 2 |
| Fan Type | Direct drive | Belt drive | Belt drive, belt drive | Belt drive, belt drive |
| Fan Control | SZVAV, MZVAV | MSAV®, MZVAV | VFD | VFD |
| IEER (up to) | 21.0 | 17.0 | 15.0 | 15.0 |
| EER (up to) | 12.7 | 12.7 | 11.2 | 11.2 |
Box Size - C/D
| 13 to 25 tons | 13 to 30 tons | 15 to 25 tons | S/O | |
|---|---|---|---|---|
| Cooling Stages | Variable speed | Up to 4 | Up to 4 | - |
| Gas Heating Stages | Up to 4 | Up to 4 | - | |
| Fan Type | Belt drive | Belt drive | Belt drive | Belt drive |
| Fan Control | SZVAV, MZVAV | MSAV®, MZVAV | MSAV® | MSAV® |
| IEER (up to) | 19.0 | 16.2 | 14.2 | - |
| EER (up to) | 12.2 | 12.2 | 11.0 | - |
Exterior Air Features
| Feature | Modèle LTM | Lumière | Xion™ | Raider® |
|---|---|---|---|---|
| ULL Economizer | Option (field/factory) | Option (field/factory) | Option (field/factory) | Option (field/factory) |
| Standard Economizer | - | - | - | - |
| Motorized OA | Option (factory) | Option (factory) | Option (factory) | Option (factory) |
| Manual OA | Option (factory) | Option (factory) | Option (factory) | Option (factory) |
| Exhaust Fan | Option (field/factory) | Option (field/factory) | Option (factory) | Option (factory) |
Reliability Features
| Feature | Modèle LTM | Lumière | Xion™ | Raider® |
|---|---|---|---|---|
| Refrigerant Leak Detection System (SDR) | Standard | Standard | Standard | Standard |
| High Pressure Switch | Standard | Standard | Standard | Standard |
| Indoor Coil Protection (Freeze) | Standard | Standard | Standard | Standard |
| Low Pressure Switch | Standard | Standard | Standard | Standard |
| 3-Strike Protection | Standard | Standard | Standard | Standard |
| SCCR up to 100kA | Option (factory) | Option (factory) | Option (factory) | - |
| Coil/Hail Protection | Option (field/factory) | Option (field/factory) | Option (factory) | Option (factory) |
| Drain Pan Overflow Switch | Option (field/factory) | Option (field/factory) | Option (factory) | Option (factory) |
| Dirty Filter Switch | Option (field/factory) | Option (field/factory) | Option (factory) | Option (factory) |
| Fan Verification | Standard | Standard | Standard | Standard |
| Standard Mechanical Cooling Range | 0-125 °F | 0-125 °F | 2-6T: 0-125 °F; 7.5-25 Ton: 45-125 °F | 45-125 °F |
Serviceability Features
| Feature | Modèle LTM | Lumière | Xion™ | Raider® |
|---|---|---|---|---|
| Hinged Access Panels | Standard | Standard | Option (factory) | - |
| Base Service Access | Standard | Standard | Standard | Standard |
| Accessible Heating | Standard | Standard | Standard | Standard |
| Slide-out Fan Motor | Standard | Standard | Standard | Standard (7.5-125 Ton) |
| Tool-less Filter Access | Standard | Standard | Standard | Standard |
| Fully Insulated Base | Standard | Standard | Standard | Standard |
| Compressor Isolation Compartment | Standard | Standard | Standard | Standard |
Indoor Air Quality Features
| Feature | Modèle LTM | Lumière | Xion™ | Raider® |
|---|---|---|---|---|
| Filters (up to MERV 16) | (Field/Factory) | (Field/Factory) | (Factory) | (Factory) |
| Smoke Detector(s) | Option (field/factory) | Option (field/factory) | Option (factory) | Option (factory) |
| NPBI - Ionizers | Option (factory) | Option (factory) | Option (factory) | Option (factory) |
| UVC Lamps | Option (factory) | Option (factory) | Option (factory) | Option (factory) |
| Fresh Air Conditioning | Option (field/factory) | Option (field/factory) | Option (factory) | Option (factory) |
