Gree and Daikin are two distinct companies in the HVAC industry, each with its own product lines and manufacturing capabilities. However, they do have a collaborative relationship through joint ventures. Gree Electric has two joint ventures with Daikin: Zhuhai Gree Daikin Device Co., Ltd., and Zhuhai Gree Daikin Precision Mold Co., Ltd.2. These joint ventures suggest a level of cooperation between the companies, but Gree does not manufacture systems specifically for Daikin. Instead, they produce their own branded products and may share some technology or components through their joint ventures.

In terms of manufacturing for other brands, Gree is known to produce air conditioners and heat pumps that are sometimes rebranded by other companies. For example, some products sold under brands like Lennox, Carrier, or Trane might be manufactured by Gree or Midea4. However, this does not imply that Gree makes systems specifically for Daikin. Daikin, being a major player in the HVAC industry, primarily focuses on its own brand and technology, including its proprietary systems and components.