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packaged rooftop unit

Rooftop Packaged Unit

REF-ROOFTOP
The Refria rooftop air conditioning unit is a high-efficiency, all-in-one HVAC system designed for commercial and residential buildings. Each packaged rooftop unit combines cooling and heating functions in a single durable housing for easy installation and maintenance.
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Packaged Rooftop Unit Manufacturer | Commercial Rooftop Package Unit Systems

Refria is a professional manufacturer of packaged rooftop units (RTU) for commercial HVAC systems. Our rooftop package unit systems provide efficient heating and cooling for offices, retail stores, schools, hotels, and other commercial buildings.
Commercial HVAC3-130 Ton CapacityEnergy EfficientEasy Installation
★★★★☆4.7/5 Rating189 customer reviews
Packaged Rooftop Unit Overview

A packaged rooftop unit (often called RTU or rooftop package unit) is a complete, self-contained HVAC system installed on the roof of commercial buildings. Unlike split systems, all components including compressor, condenser, evaporator, and air handler are housed in a single weatherproof enclosure.

Refria manufactures high-quality packaged rooftop unit systems designed for commercial applications. Our rooftop package unit solutions save valuable indoor space, simplify installation, and provide reliable climate control for various building types.

What is a Packaged Rooftop Unit?

A packaged rooftop unit consolidates all HVAC components into one rooftop-mounted enclosure. This integrated design eliminates the need for separate indoor and outdoor units, making it ideal for commercial buildings where indoor space is limited.

The rooftop package unit provides complete climate control including cooling, heating, ventilation, and air filtration. All components are engineered to work together efficiently, ensuring optimal performance and energy savings.

Modern packaged rooftop unit systems feature advanced controls, variable speed fans, and high-efficiency coils that adapt to changing building loads, reducing energy consumption while maintaining comfort.

Our rooftop package unit systems serve diverse commercial applications including retail stores, office buildings, schools, healthcare facilities, and light industrial spaces.

Refria manufactures packaged rooftop unit systems with capacities ranging from 3 to 130 tons, allowing us to match the right system to your building's specific requirements.

Proper installation by qualified HVAC professionals is essential for optimal rooftop package unit performance. Our units are designed for straightforward installation with pre-wired controls and clearly labeled connections.

Key Features of Our Rooftop Package Unit

Refria's packaged rooftop unit systems incorporate features designed for commercial reliability and efficiency:

Space-Saving Design

These units install entirely on the roof, freeing up valuable indoor space for other uses. No need for mechanical rooms or indoor equipment.

High Efficiency Operation

Our systems achieve SEER ratings up to 18, reducing energy costs while maintaining comfortable indoor environments.

Simplified Installation

These units arrive as complete, pre-assembled systems with factory-tested components, reducing installation time and complexity.

Durable Construction

Our rooftop HVAC systems feature weather-resistant cabinets, corrosion-protected coils, and robust components designed for rooftop service life.

Flexible Configuration

These units can be configured with various options including economizers, different heating types, and custom control packages.

Quiet Operation

Our rooftop HVAC systems incorporate sound attenuation features and low-vibration components to minimize rooftop noise transmission.

These features make Refria's rooftop package unit systems a reliable choice for commercial building owners and facility managers seeking efficient, space-saving HVAC solutions.

How a Packaged Rooftop Unit Works

The packaged rooftop unit operates through a continuous cycle of air intake, conditioning, and distribution:

Step 1: Air Intake
The rooftop HVAC system draws return air from the building interior through ductwork. Fresh air can also be introduced through an economizer when conditions permit.
Step 2: Air Conditioning
The system conditions the air by cooling (via refrigerant cycle) or heating (via electric, gas, or heat pump), while also filtering and dehumidifying as needed.
Step 3: Air Distribution
The conditioned air is pushed by the blower through supply ducts back into the building, maintaining the desired temperature and air quality throughout the occupied spaces.

This closed-loop cycle repeats continuously, with the unit automatically adjusting its operation based on thermostat settings and building load conditions. Modern rooftop HVAC systems include intelligent controls that optimize performance for energy efficiency and comfort.

Technical Specifications

Refria rooftop HVAC systems are available in a comprehensive range of configurations:

Cooling Capacity

3-130 Tons
Multiple sizes available

Energy Efficiency

10-18 SEER
Depending on model

Electrical Requirements

208-575V
3-phase, 50/60Hz

Sound Level

65-78 dBA
At full operation

Heating Options

Electric/Gas/HP
Multiple heat sources

Refrigerant

R-410A
Environmentally friendly

Warranty Period

12 Months
Component dependent

Dimensions

Custom
Based on capacity
Professional Installation Required:

Our rooftop HVAC systems require professional installation by qualified HVAC technicians. Proper installation ensures optimal performance, efficiency, and safety. We provide detailed installation manuals and can recommend certified installers in your area.

Additional Technical Details:

These units include a complete weatherproof enclosure housing compressor, condenser and evaporator coils, blower assembly, filters, and control system. Our rooftop HVAC systems are designed specifically for commercial applications with features like corrosion-resistant coatings, high-static blowers, and flexible duct connections.

Why Choose Refria Packaged Rooftop Units?

When selecting a rooftop HVAC system for your commercial building, consider these advantages of Refria systems:

Proven Reliability

Our rooftop HVAC systems are built with commercial-grade components selected for durability and long service life in rooftop environments.

Energy Cost Savings

High-efficiency models can significantly reduce energy consumption compared to older systems, providing a strong return on investment.

Factory Testing

Every unit undergoes comprehensive factory testing before shipment, ensuring reliable operation from day one.

Technical Support

Our experienced technical team provides support for system selection, installation guidance, and troubleshooting assistance.

Customization Options

We can customize configurations to meet specific project requirements, including special controls, filters, or accessories.

Competitive Pricing

As a direct manufacturer, we offer competitive pricing on our systems without compromising on quality or features.

Choosing the right rooftop HVAC system involves considering your building's specific needs, local climate conditions, and operational requirements. Our team can help you select the optimal system for your application.

Commercial Applications

Refria rooftop HVAC systems are ideal for various commercial and institutional buildings:

Office Buildings

Provides consistent comfort for workspaces, meeting rooms, and common areas in single or multi-story office complexes.

Retail & Shopping Centers

Maintains comfortable shopping environments in stores, malls, supermarkets, and other retail establishments.

Educational Facilities

Controls temperature and ventilation in classrooms, libraries, gymnasiums, and administrative buildings.

Hospitality Industry

Provides guest comfort in hotels, motels, resorts, conference centers, and restaurant dining areas.

Healthcare Facilities

Suitable for medical offices, clinics, outpatient centers, and other healthcare environments with proper filtration.

Light Industrial

Conditions manufacturing spaces, warehouses, distribution centers, and workshop areas.

These diverse applications demonstrate the versatility of rooftop HVAC systems. These units offer a practical HVAC solution for virtually any commercial building type with accessible rooftop space.

Installation Considerations

Proper installation is critical for optimal performance of your rooftop HVAC system. Follow these key considerations:

Roof Structure Assessment

Verify the roof can support the weight of the unit plus any accumulated snow or ice. Structural reinforcement may be required for some installations.
Consult with structural engineer if needed

Proper Unit Placement

Position the system to allow adequate clearance for service access, airflow, and duct connections. Consider prevailing winds and sun exposure.
Follow manufacturer spacing guidelines

Ductwork Design

Design duct systems to minimize static pressure while delivering adequate airflow to all spaces. Properly seal and insulate rooftop ducts.
Optimize for energy efficiency

Always employ qualified HVAC professionals to install rooftop HVAC systems. Professional installers understand local codes, manufacturer requirements, and best practices for safe, efficient installation.

Maintenance Guidelines

Regular maintenance extends the life and efficiency of rooftop HVAC systems:

Filter Maintenance

Check air filters monthly and replace or clean as needed. Clean filters improve airflow and efficiency.

Coil Cleaning

Clean condenser and evaporator coils annually to maintain heat transfer efficiency. Dirty coils reduce system performance.

Drain System Check

Ensure condensate drains are clear and functioning properly to prevent water damage and microbial growth.
Professional Maintenance Recommended:

While some basic maintenance can be performed by facility staff, we recommend annual professional maintenance for rooftop HVAC systems. HVAC technicians can inspect electrical components, check refrigerant charge, test safety controls, and identify potential issues before they cause system failure.

Frequently Asked Questions

What is the difference between a packaged rooftop unit and a split system?
A packaged rooftop unit contains all HVAC components in a single rooftop enclosure, while split systems separate the condenser (outside) from the air handler (inside). The rooftop unit saves indoor space and simplifies installation but requires adequate roof access and structural support.
What building types are best suited for packaged rooftop units?
Our rooftop HVAC systems work well for single-story or low-rise commercial buildings with accessible, structurally sound roofs. Ideal applications include retail stores, offices, schools, restaurants, and light industrial facilities. These systems are particularly advantageous when indoor mechanical space is limited.
How do I determine the right size packaged rooftop unit for my building?
Proper sizing of a rooftop HVAC system requires a professional load calculation considering building size, insulation, windows, occupancy, equipment, and local climate. Oversized or undersized systems lead to comfort problems, short cycling, and reduced efficiency. Our technical team can assist with sizing recommendations.
What heating options are available with rooftop package units?
Refria rooftop HVAC systems offer multiple heating options: electric resistance heat strips, natural gas or propane furnaces, or heat pump systems. The optimal choice depends on local fuel costs, climate, and building requirements. Some models can be configured with multiple heat sources for flexibility.
How long does a packaged rooftop unit typically last?
With proper installation and regular maintenance, a quality rooftop HVAC system can provide 15-20 years of reliable service. The actual lifespan depends on operating hours, maintenance frequency, environmental conditions, and initial installation quality. Regular maintenance significantly extends system life.

Request More Information

Our HVAC specialists can help you select the right rooftop HVAC system for your commercial building. Contact us for detailed specifications, pricing, and application guidance.
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sharon.pan@refria.com

1112 Tianji International Building , No.5 Renchang Road , Beijiao Town , Shunde District , Foshan City , Guangdong Province , China