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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Greenheck DFD-M150, 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.
What is an instruction?
The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Greenheck DFD-M150 one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.
Unfortunately, only a few customers devote their time to read an instruction of Greenheck DFD-M150. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.
What should a perfect user manual contain?
First and foremost, an user manual of Greenheck DFD-M150 should contain:
- informations concerning technical data of Greenheck DFD-M150
- name of the manufacturer and a year of construction of the Greenheck DFD-M150 item
- rules of operation, control and maintenance of the Greenheck DFD-M150 item
- safety signs and mark certificates which confirm compatibility with appropriate standards
Why don't we read the manuals?
Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Greenheck DFD-M150 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-M150, 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-M150.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Greenheck DFD-M150 item, and its use of respective accessory, as well as information concerning all the functions and facilities.
After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.
Table of contents for the manual
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Page 1
Model DFD-M150 Dynamic Rated Fir e Dampers 1 1 / 2 Hour Fire Resistance Rating (UL555) 4 Hour Fire Resistance Rating (BS476) APPLICA TION Model DFD-M150 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 fir e damper label. UL 555 classifies dynamic rated fire da[...]
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Page 2
H* P W* H* P 102 20 127 20 152 23 178 28 203 30 229 33 254 33 279 36 305 41 330 43 356 46 381 46 406 51 432 53 457 56 483 58 508 61 533 66 559 66 584 69 610 74 635 79 660 81 686 81 711 84 737 86 762 91 787 94 813 94 838 99 864 99 889 104 914 107 SIZE LIMIT A TIONS V ertical or Horizontal Single Multi- mm Section Section Minimum 102 x 102 NA Maximum[...]
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Page 3
SIZE LIMIT A TIONS V ertical or Horizontal Single Multi- mm Section Section Minimum 102 x 102 NA Maximum 914 x 813 1219 x 813 Installation of sizes larger than the maximums shown requir es approval of the authority having jurisdiction. DFD-M150 T ype B SIZING AND ASSEMBL Y DA T A Dampers larger than maximum single section size are supplied in 2 or [...]