Lennox Raider ZHD Rooftop Units
The Lennox Raider ZHD Series offers efficient and reliable packaged heat pump units designed for commercial applications. These units provide both cooling and heating capabilities, with standard efficiency ratings and utilizing R-454B refrigerant.
Key Features and Benefits
- Cooling/Heating System: Designed to maximize sensible and latent cooling performance, operating across a wide ambient temperature range (35°F to 125°F).
- R-454B Refrigerant: Features a low Global Warming Potential (GWP) and zero Ozone Depletion Potential (ODP).
- Compressor: Scroll compressors ensure high performance, reliability, and quiet operation, mounted on resilient rubber grommets.
- Compressor Crankcase Heater: Protects the compressor from refrigerant migration during low ambient or off-cycle periods.
- Refrigerant Metering Orifice: Accurately meters refrigerant for precise system control.
- Filter/Drier: High-capacity filter/drier protects the system from moisture and contaminants.
- High/Low Pressure Switches: Protect the compressor from overload and low-pressure conditions.
- Reversing Valve: A 4-way valve facilitates rapid changeover between cooling and heating modes.
- Coil Construction: Features copper tube coils with enhanced rippled-edge aluminum fins and silver-soldered construction for durability and efficiency.
- Indoor Coil: Cross-row circuiting with rifled tubing optimizes sensible and latent cooling capacity.
- Antimicrobial Condensate Drain Pan: Sloped composite pan with an antimicrobial additive to improve indoor air quality and prevent drain line blockage.
- Outdoor Coil Fan Motor: Thermally protected, totally enclosed, and permanently lubricated with shaft-down orientation.
- Cabinet Construction: Heavy-gauge steel panels and a full-perimeter galvanized steel base rail provide robust construction.
- Airflow Choice: Units are shipped in downflow configuration but can be field-converted to horizontal airflow.
- Electrical: Marked and color-coded wiring with positive connection electrical plugs for easy installation and maintenance.
- Economizer: Available in downflow or horizontal configurations, with features like barometric relief dampers and exhaust hoods. Demand Control Ventilation (DCV) ready.
- Indoor Air Quality: Optional CO2 sensors available for Demand Control Ventilation.
- Thermostats: A range of optional conventional and BACnet compatible thermostats are available.
Model Identification
The model number provides detailed information about the unit's configuration:
ZHD060 S5 B N 1 Y
- ZHD: Brand/Family (Raider®)
- 060: Nominal Cooling Capacity (5 Tons)
- S: Cooling Efficiency (Standard Efficiency)
- 5: Refrigerant Type (R-454B)
- B: Blower Type (Belt Drive)
- N: Factory Installed Electric Heat (No Heat)
- 1: Minor Design Sequence (1st Revision)
- Y: Voltage (575V-3 phase-60Hz)
Specifications Overview
| Model | Nominal Tonnage | Cooling Capacity (Btuh) | Heating Capacity (Btuh) | Refrigerant Type | Sound Rating Number (dBA) |
|---|---|---|---|---|---|
| ZHD036S5B | 3 | 35,000 | 32,600 | R-454B | 79 |
| ZHD048S5B | 4 | 45,000 | 42,500 | R-454B | 78 |
| ZHD060S5B | 5 | 57,000 | 55,000 | R-454B | 82 |
Options and Accessories
A wide range of factory and field-installed options and accessories are available, including:
- Electric Heat (5 kW to 22.5 kW)
- Economizers (Standard and High Performance)
- Outdoor Air Dampers
- Power Exhaust Fans
- Indoor Air Quality Sensors (CO2)
- Roof Curbs
- Ceiling Diffusers
- Various Drive Kits for Blower Motors
Unit Clearances
Specific service and minimum operation clearances are provided for downflow and horizontal economizer configurations to ensure proper unit operation and access for maintenance.
Weight Data
Base unit weights and maximum unit weights (with all options installed) are provided in pounds (lbs.) and kilograms (kg) for different models.
Dimensions
Detailed dimensional drawings and corner weight information are included for each model, illustrating the unit's physical layout and key measurements.
