Greenheck DFD-155 manual

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The rules should oblige the seller to give the purchaser an operating instrucion of Greenheck DFD-155, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.

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First and foremost, an user manual of Greenheck DFD-155 should contain:
- informations concerning technical data of Greenheck DFD-155
- name of the manufacturer and a year of construction of the Greenheck DFD-155 item
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- safety signs and mark certificates which confirm compatibility with appropriate standards

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Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Greenheck DFD-155 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Greenheck DFD-155, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Greenheck service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Greenheck DFD-155.

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Table of contents for the manual

  • Page 1

    Model DFD-155 Dynamic Rated FIRE DAMPERS 100% Free Area - Sealed for High Pressure Systems 1 1 ⁄ 2 Hour Fire Resistance Rating Application Model DFD-155 is approved for use in walls, floors and partitions with fire r esistance ratings less than 3 hours. This model carries a 1 1 ⁄ 2 hour UL fire damper label. UL 555 classifies dynamic rated fire[...]

  • Page 2

    Inches (mm) T ype CR T ype CO & C T ype R* 1 Minimum Maximum Minimum Maximum Minimum Maximum Single Section V ertical 3 (76) 31 (787) 3 x 3 (76 x 76) 34 x 31 (864 x 787) 3 (76) 34 (864) Multi Section V ertical** NA 55 (1397) NA 70 x 44 (1778 x 1118) or 58 x 55 (1473 x 1397) NA 58 (1473) Single Section Horizontal 3 (76) 25 (635) 3 x 3 (76 x 76) [...]