Key specification for this heat pumps: refrigerant R407C, type Chiller. Everything below is reproduced from the factory data sheet. Made by Shandong GRAD Group Co., Ltd. (20 years on the platform, factory-assessed). Quantity and destination market determine the final price — tell us both for a firm quote.
Heat Pump Manufacturer Residential Air Source Geothermal Heat Pump Water Heater
The GRAD Air source heat pump unit is equipped with a self-developed NB-iot Internet of Things remote intelligent control module. It can be operated via a mobile phone APP and does not require dedicated personnel to stand by. It also features fault prediction Warning alerts and online diagnosis. It can operate efficiently in an ambient temperature range of -30 ° C to 43 ° C, with a maximum water outlet temperature of 60 ° C. It comes in various terminal forms and is suitable for radiators and floors Radiation, central air conditioning for cooling and heating. The national patented intelligent defrosting technology accurately detects frost, quickly defrosts, significantly reduces the frequency of defrosting, and greatly shortens the defrosting time. In addition, this unit also has unique advantages such as modular customization, no need to build a machine room, environmental protection and energy conservation, high efficiency and low noise, and wide application range.
* Large diameter heat exchanger, low temperature operation effectively reduce refrigerant flow resistance, increase evaporation pressure, inhibit frost;
* Large distance aluminum foil design, low temperature operation effectively reduce air flow resistance, increase evaporation pressure, inhibit frost;
* Fin flow independent control, accurate control, more thorough defrosting;
* Concentrated a variety of innovative technologies, distributed defrosting system and piston type four-way directional valve effectively avoid the suction of traditional air-cooled heat pump units With liquid, defrosting incomplete, four way directional valve stuck and so on.
Working Principle
When the air-cooled water chiller is working, the refrigerant absorbs the heat from the cooled object in the evaporator and vaporizes. The compressor continuously draws the gas generated in the evaporator and compresses it into high-temperature and high-pressure vapor. The refrigerant vapor is then sent to the condenser to exchange heat with the air. After releasing heat, it condenses into liquid. The liquid refrigerant is decompressed after passing through the expansion valve. Then it enters the evaporator to absorb the heat of the cooled object and vaporizes again. This heat exchange process is repeated until the industrial water is cooled to the required temperature.
Choose our customized central air conditioning air-cooled system service and enjoy professional, efficient, and energy-saving air conditioning solutions to provide the best air conditioning experience for your project.
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About us
GRAD sales network covers over 100 countries and regions like America, Australia Indonesia, Malaysia, UAE, Thailand, Nigeria etc. and has established branch company in USA, and set up offices in Cambodia and Thailand to make overall layout of global market.
Shandong GRAD Group Co., Ltd. is a leading global manufacturer specializing in HVAC (Heating, Ventilation, and Air Conditioning) solutions. With over 30 years of production experienceand 16+ years in international business, we have built a strong reputation for innovation, reliability, and excellence. Our products are exported to 100+ countries, demonstrating our commitment to quality and customer satisfaction worldwide. Operating from a 500,000 sqm state-of-the-art production facility, we employ 2,000+ skilled professionals dedicated to delivering cutting-edge HVAC technologies. GRAD Group holds 1,000+ patents, underscoring our leadership in R&D and technological advancement. Whether for commercial, or industrial applications, we provide energy-efficient, sustainable, and high-performance HVAC solutions tailored to global market needs.
Why Choose GRAD? ✔ 30+ Years of HVAC Expertise ✔ Strong International Presence (100+ Countries) ✔ Advanced Manufacturing with 500,000 sqm Facility ✔ 1,000+ Patents for Innovative Solutions ✔ Commitment to Quality & Sustainability At GRAD, we strive to create comfortable, efficient, and environmentally friendly climate control systems for a better future. For more information, visit our official website or contact us directly.
Ordering and Pricing
Minimum order quantity: 1 set
Volume pricing:
1–9 set: US $5000 / set
10+ set: US $3000 / set
Ships from: China
Customization: OEM and ODM accepted on qualifying volumes.
Frequently Asked Questions
What is the minimum order quantity for this heat pumps?
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.
Specifications, certifications and images on this page are as published by the manufacturer and have not been
independently tested or verified by HVACR Nexus. Confirm the full specification and the approvals valid in your
market in writing before ordering.
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