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china ground source low noise heat pump unit for central heating
Ground source heat pump unit is a kind of new type energy utilization technology which uses shallow ground energy to make heating or cooling and it is one of heat pumps.
Heat pump unit generally means to transfer the heating or cooling from underground to the required places. Generally, heat pumps are used for refrigeration and heating. Ground source heat pump has also utilized the strong heat and coldness storing capacity of the underground soil, to transfer the heat in underground soil to the inner buildings and to transfer the heat in the buildings to underground. One circle, one year.
Components
1. Semihermetic screw refrigeration compressor, with simpler structure, even and continuous inlet and exhaust air, small running shock, high stability and long life span.
2. Shell & tube evaporator and condenser
3. Expansion valve: electronic expansion valve control system can meet as much as 2600 steps control precision, which can make the unit keep optimal condition.
4. All the assembly work will be finished in the factory and the unit can be delivered after qualified operation and trial test.
5. Microcomputer control system.
The standard operation conditions:
Cooling conditions:the underground water inlet temperature: 25°C, outlet temperature:30°C; cold water inlet temperature 12°C, outlet temperature 7°C.
Heating conditions: the underground water inlet temperature: 0°C, outlet temperature:/°C; hot water inlet temperature 40°C, outlet temperature / °C.
The outlet temperature under heating conditions depends on the water flow under cooling conditions.
Usually we use plywood package or naked package. Some of the products like fan coil unit or table tennis board have standard carton package. The shipping terms are LCL, 20’ container, 40’ container
Before-sale services:
(1) Tell customers how to use our products and matters needing attention.
(2) Guide customers to choose the best and economic product, recover the investment within short time.
(3) Site inspection if you need.
In-Sale services:
(1)Quality control must be inspected strictly.
(2)In accordance with the agreements stipulated in the contract.
After-sale services:
(1) If the project needs our installation guidance, we can send our engineer and translator. We can also send customers installation video to teach them how to fix and operate with
our product.
(2) Usually, our product warranty is 18 months after leaving factory or 12 months after installation. within this months, all parts broken will be responsible for our factory.
(3) Regular contact with customer, consult with the customer feedback, come true with
the customer's two-way communication.
Shandong GRAD Group Co., Ltd. is located in Dezhou city, Shandong Province,covering an area of 450,00 square meters. It is a large modern enterprise group with central air-conditioning, ventilation, FRP products research development, design, production, sales, installation and maintenance.It is the backbone enterprise of "Dezhou • Central air-conditioned city" named by China Refrigeration and Air Conditioning Industry Association(CRAA).
GRAD Group products include: central air conditioning series products(chillers, air conditioners, fan coils, cooling towers, ventilators and accessory products), FRP series products (FRP winding pipes and storage tanks), SMC moulding products (water tanks, table tennis boards, basketball boards, manhole covers, etc) . All products have been inspected by the national quality inspection department.
If you have any question,please fell free to contact with following information.
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