Brand new unused complete in box with manual. Manufacturers Part No: 0020028514 The Wireless Programmable Room Control VRT 392F permanently monitors the room temperature and adapts the boiler output to maintain the desired room temperature. Therefore the VRT 392f achieves fuel savings by delivering the right amount of energy to maintain a constant room temperature by constantly adjusting the boiler to the required output level. The vaillant VRT 392F wireless programmable control has a blue back lit display allowing clear viewing of the text information. Two click and turn control knobs make any needed adjustments a simple task.
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