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By certification 
High efficency. Adopt good quality heat exchanger and fan , heat exchanging capacity and efficiency.
Symmetric-design allows it the change the outlet pipe in left or right side according to actual installation.
2 pipes & 4 pipes systems in all range.
2-way and 3-way valve kits are optional for 2-pipe system and 4-pipe system.
Symmetric-design allows it the change the outlet pipe in left or right side according to actual installation.
2 pipes & 4 pipes systems in all range.
2-way and 3-way valve kits are optional for 2-pipe system and 4-pipe system.
