This hvac rooftop unit is published with the manufacturer’s full specification — type Air cooled chiller/heat pump system. Made by Shandong GRAD Group Co., Ltd. (20 years on the platform, factory-assessed). For a binding price and lead time, send the volume you need and where it ships to.
Key Features of This Hvac Rooftop Unit
- Warranty: Negotiated based on projects
- Place Of Origin: Shandong, China
- Application: /
- Type: Air cooled chiller/heat pump system
- Mounting Type: Floor Standing
- Fan Motors Type: AC
Technical Specifications
| Type | Air cooled chiller/heat pump system |
|---|---|
| Mounting Type | Floor Standing |
| Fan Motors Type | AC |
| Application | / |
| Key Selling Points | Explosion-proof, Eco-Friendly, Automatic, Low Maintenance Cost, Easy To Operate, Competitive Price, High-Accuracy, High Safety Level, High Productivity, Famous Brand Low Voltage Components, Remote Monitoring, Long Service Life, Remote Control, Patented Product, Energy Saving, Low Noise Level, Famous Brand Motor, Famous Brand PLC, Voice Navigation, Accurate Temperature Control |
| Warranty | Negotiated based on projects |
| Machinery Test Report | Provided |
| Video Outgoing-Inspection | Provided |
| Core Components | / |
| Place Of Origin | Shandong, China |
| Weight (Kg) | 0 |
| Brand Name | GRAD |
| Dimension(L*W*H) | / |
| Selling Units | Single item |
| Single Volume | 0 cm³ |
| Single Gross Weight | 0.0 kg |
Product Details


Rooftop package unit (RTU)
The working principle of a rooftop package unit (RTU) involves a single, self-contained system that conditions air in one central location and distributes it through ductwork. The unit is typically mounted on the building's roof for efficiency and
space-saving. It performs both cooling and heating functions through a combination of the vapor-compression refrigeration cycle and a heating module.
2. Precise frost measurement, rapid defrosting, reduced defrosting frequency, and shortened defrosting time.
3. Mobile APP operation, fault warning, and online diagnosis.
4. It operates efficiently within an ultra-wide ambient temperature range of -35℃ to 43℃.
5. COPh > 2.6 exceeds the national standard energy efficiency limit value, and IPLV(H) exceeds the national standard first-level energy efficiency.
small-scale commercial systems, warehouse systems, and factory systems, making them your ideal air conditioning solution.


A typical RTU is an "all-in-one" unit housing the following key components within a single cabinet:
Compressor: Compresses low-pressure refrigerant gas into high-pressure, high-temperature gas.
Condenser Coil and Fan: Releases heat from the hot refrigerant gas to the outdoors, turning it back into a liquid.
Expansion Valve/Metering Device: Regulates the flow of liquid refrigerant into the evaporator coil, reducing its pressure and temperature.
Heating Module: Depending on the unit type, this is typically electric heater or a heat pump reversing valve.
Filters: Clean the incoming return air before conditioning.
Blower/Supply Fan: Pushes the conditioned air through the supply ductwork into the building.
Return and Supply Air Openings: Connect to the building's ductwork system.




1. Small Commercial Systems: Suitable for small to medium-sized commercial spaces, such as small offices and retail stores, providing efficient cooling and heating solutions.
2. Warehouse Systems: Suitable for warehouses of all sizes, ensuring goods are stored in suitable temperature and humidity environments, improving warehouse management efficiency.
3. Factory Systems: Suitable for various factory workshops, providing a stable temperature-controlled environment to ensure smooth production processes.
Product Features:
2. Intelligent Control: Equipped with an intelligent control system, allowing for remote monitoring and temperature adjustment, and easy operation.
3. Durable and Reliable: Utilizes high-quality materials and advanced manufacturing processes to ensure long service life and stability.
4. Low Noise Operation: Optimized air duct design and sound insulation materials result in low operating noise, providing a quiet working environment.
5. Easy Maintenance: Reasonable structural design facilitates daily maintenance and cleaning, reducing maintenance costs.


1. Cooling Capacity: Cooling capacity is adjustable depending on the model to meet the needs of different locations.
2. Heating Capacity: Equipped with a high-efficiency heating system, suitable for temperature control during cold seasons.
3. Power Requirements: Multiple power supply configurations are available to adapt to different regional power conditions.
4. Installation Method: Rooftop installation saves indoor space and is easy to install.
Application Examples:
1. Small Office: A technology company installed GRAD rooftop air conditioner in its office, significantly improving employee comfort and work efficiency.
2. Large Warehouse: A phamacy factory used GRAD rooftop air conditioner in its warehouse to ensure the quality and safety of stored goods.
3. Manufacturing Plant: A bread factory installed GRAD rooftop air conditioner in its production workshop, ensuring a stable production environment and improving product quality.








A: Qingdao/Shanghai/Tianjin, China or else port as for your request.
Q2. What's your company's main products?
A: Our company is specialized in central air-conditioning, ventilation and GRP Composite material products.
Q3. What’s your payment term.
A:T/T,30% deposit,70% before delivery or 100% Irrevocable L/C at sight.
Q4. What’s your Warranty.
A:Warranty for 12 months from the date of shipment from the factory.
Ordering and Pricing
- Minimum order quantity: 1 set
- Volume pricing:
- 1+ set: US $1000 / set
- Ships from: China
- Customization: OEM and ODM accepted on qualifying volumes.
Frequently Asked Questions
What is the minimum order quantity for this hvac rooftop unit?
The standard minimum order quantity is 1 set. Trial orders can usually be arranged for buyers evaluating the product before a full production run.
What warranty is provided?
The manufacturer provides a Negotiated based on projects warranty. Spare parts and technical support remain available after the warranty period.
Do you accept OEM or custom branding?
Yes. Custom logo, colour, packaging and specification changes are accepted on qualifying order volumes. Send your artwork and technical requirements with your enquiry.
How long does production and delivery take?
In-stock configurations typically ship within 7–15 days. Customised or large-volume orders are usually produced in 25–35 days, confirmed on order.
About the Manufacturer
This product is produced by Shandong GRAD Group Co., Ltd., based in China. The company 20 years as a verified Alibaba.com supplier, operates its own manufacturing, passed third-party supplier assessment. Browse the full Shandong GRAD Group Co., Ltd. range on HVACR Nexus.
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