130KW Air Cooled Modular Chiller Heat Pump for Commercial Central HVAC Systems and Industrial Cooling Water Solutions

Product introduction：

Air source heat pump is a kind of energy-saving device that can make the heat flow from the low heat source air to the high heat source.

GRAD air source heat pump/chiller has accumulated nearly two decades of engineering practical application experience,condensed the essence of design,manufacturing and application,the unit has a number of core technologies such as low temperature and strong heat,multiple antifreeze,intelligent defrosting,intelligent control,high operational reliability,wide operating range,product diversity,Widely used in hotels,shopping malls,office buildings, exhibition halls, airports,stadiums and other public places,and it can meet the electronic,pharmaceutical,biological, light textile,chemical industry,metallurgy,electric power,machinery and other industries of technology on the different use of air conditioning system requirements.

About us

Shandong GRAD Group Co., Ltd., established in 1993, is a large-scale industrial enterprise headquartered in Dezhou, Shandong Province, China. It has a manufacturing facility of 700,000 sqm. As a leading entity in China HVAC and composite material industry, GRAD has total assets of USD 400 million and achieves an annual sales volume of approximately USD 495 million.

GRAD focuses on design, fabrication, sales, installation and maintenance of Central Air Conditioning (HVAC) systems, Environmental Protection Equipment, and Composite Materials (FRP/GRP) products. GRAD main products are Chillers, Air Handling Units (AHU), Fan Coil Units (FCU), Cooling Towers, Ventilators, central air conditioning accessories, Combined Water Tanks and fiberglass winding Pipes. With 2,280 employees, 380 R&D engineers, GRAD maintains a robust technical edge supported by over 1000 intellectual patents.

GRAD factories operate under a strict quality management system certified by ISO 9001, ISO 14001, and OHSAS 18001, and many products get CE and AHRI certificates for international compliance. GRAD Group provides comprehensive OEM and ODM services, featuring full customization from design to production. Its global service network covers major markets in Southeast Asia, Middle East, Middle Asia, south Asia, African and south America, ensuring professional technical support and efficient logistics for international business.

FAQS

Q1: What is the Minimum Order Quantity (MOQ) for industrial HVAC units?

A: Our MOQ is flexible depending on the product category. For standard central air conditioning products like fan coil units or ventilators, the MOQ is 1 unit. For customized fiberglass composite material products, the MOQ may start at 10 to 50 pieces/sets, based on specific product. We offer a tiered pricing structure where bulk orders for large-scale projects receive significant volume discounts. Please specify your project requirements for a detailed quote.

Q2: Can you provide customized designs for complex engineering projects?

A: Yes. We specialize in full OEM and ODM services. Our team of 380 R&D engineers can design HVAC systems and composite structures based on your technical drawings, site conditions, or specific performance parameters. We use advanced simulation software to ensure energy efficiency and structural integrity before manufacturing begins.

Q3: What is the typical lead time for large-scale equipment orders?

A: For standard products, the production cycle is 7 to 15 days. For large-scale customized equipment such as industrial chillers or large cooling towers, the lead time typically ranges from 25 to 45 days. We provide a detailed production schedule upon order confirmation and ensure an on-time delivery rate exceeding 95% through our integrated supply chain management.

Q4: How does GRAD Group ensure product quality and durability?

A: We implement a 100% inspection protocol for raw materials and finished products. Our testing center is equipped with advanced laboratories for performance testing, pressure resistance, and material analysis. Every unit is assigned a unique tracking code for life-cycle quality traceability. We also welcome third-party inspections like SGS or Intertek before shipment.

Q5: Which international certifications do your products carry?

A: Our manufacturing processes are certified under ISO 9001 and ISO 14001. Our air handling units, fan coil units, ventilators, dampers, air vents and diffuser are CE listed. Our air handling units and fan coil units are AHRI listed. Our square type cross flow cooling tower and closed cooling tower are CTI listed. Our fiberglass winding pipes are ASTM tested and KS listed. Our combined water tank is WRAS listed.

Q6: What are your accepted payment terms and trade conditions?

A: We typically operate on EXW, FOB, CIF, or CFR terms. We can accept the following payment term:

1. T/T term: 30% deposit, balance before delivery.

2. 30% T/T deposit in advance, balance can be paid by L/C at sight.

3. L/C at sight

Q7: How are heavy industrial products packaged and shipped?

A: All equipment is packed according to international export standards using reinforced plywood cases, moisture-proof wrapping, and anti-vibration fixings. For oversized items like FRP pipes or AHU modules, we coordinate specialized container loading (FR/OT containers) to ensure safe transit. We work with leading global carriers to provide reliable sea, air, and land transportation options.

Q8: What kind of after-sales support and warranty do you provide?

A: we offer warranty of 18 months after delivery or 12 months after installation, whichever comes first. Within warranty period, we offer free replacement parts for any manufacturing defects. For complex systems, we offer free remote/online technical guidance for installation and commissioning. We also maintain a database of technical manuals and videos to assist your local maintenance teams in long-term system optimization. We can also offer free training for your technical personnel in our Dezhou factory. If necessary, we can send our engineer to work on site for the units installation and commissioning, under cost bearing of clients.