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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Honeywell R7851, 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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The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Honeywell R7851 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 Honeywell R7851. 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 Honeywell R7851 should contain:
- informations concerning technical data of Honeywell R7851
- name of the manufacturer and a year of construction of the Honeywell R7851 item
- rules of operation, control and maintenance of the Honeywell R7851 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 Honeywell R7851 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 Honeywell R7851, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Honeywell 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 Honeywell R7851.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Honeywell R7851 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
PRODUCT DATA 65- 0109- 8 ® U.S. Registered T rademark Copyright © 2002 Honeywell • All Rights Reserved R7824, R7847, R7848, R7849,R7851,R7861, R7886 Amplifiers for 7800 SERIES Relay Modules APPLICATION The R78 24C Rect ification Flam e Ampl ifier is a solid stat e plug-in amplifi er that resp onds to a rectif ied signal from a C7024E ,F Self- C[...]
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Page 2
R7824 , R7847, R784 8, R7849 ,R7851,R7 861, R7886 AMPLIFIERS F OR 7800 SERIES RELAY MODULES 65-0109—8 2 ORDERING INFORMATION When purc hasing re placement a nd mod ernizatio n product s from your TRADEL INE® wholes aler or dis tributor , refer to the TRADELINE® Ca talog or price s heets for c omplete ordering nu mber . If you hav e additi onal [...]
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Page 3
R7824 , R7847, R78 48, R7849,R 7851,R786 1, R7886 AMPLIFIERS FO R 7800 SERI ES RELAY MODU LES 3 65-0109—8 T able 2. Flame De tection System s. a Flame F ailure Resp onse Time (FFRT) depen ds on sele ction of am plifier and 78 00 SER IES Relay Module . b R7824C is used only w ith the 24 Vd c RM7824 Relay M odule an d C7024E ,F Flame D etectors . c[...]
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Page 4
R7824 , R7847, R784 8, R7849 ,R7851,R7 861, R7886 AMPLIFIERS F OR 7800 SERIES RELAY MODULES 65-0109—8 4 CAUTION Equipment Da mage Hazard . Incorrect co mbination of relay modu le, amplifie r and flame detector can cause equip ment damag e. In infrare d applic ations (C 7015 Infra red Flame Detect or and R784 8 Amplifie r) using th e RM78 90 Relay[...]
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Page 5
R7824 , R7847, R78 48, R7849,R 7851,R786 1, R7886 AMPLIFIERS FO R 7800 SERI ES RELAY MODU LES 5 65-0109—8 Fig. 3. Flam e detect or wiring. BLUE YELLOW WHITE WHITE WHITE WHITE BLACK BLACK F G 22 L2 L1 L2 M20309 BLUE BLUE WHITE WHITE F F G G WHITE BROWN F G INFRARED (C7015) ULTRAVIOLET (C7027/C7035/C7044) OPTICAL C7927A SOLID STATE SELF-CHECKING UL[...]
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Page 6
R7824 , R7847, R784 8, R7849 ,R7851,R7 861, R7886 AMPLIFIERS F OR 7800 SERIES RELAY MODULES 65-0109—8 6 3. Disconnect power supp ly before making wiring connections to prevent elec trical shock and equipment damage. 4. All wi ring must c omply wi th app ropriate el ectrical c odes, ordin ances and reg ulations in cluding N EC Class 1 (Line V olta[...]
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Page 7
7 65-0109—8 T able 3. Flame signal. a This mi nimum or st ronger si gnal can b e easily ob tained if the detect or is correct ly instal led and positione d to prope rly sense the flame. O btain th is voltag e before c ompletin g check out. b The flam e amplif iers are Am pli-Check ® type. c Adjust s lightly , or face the pipe do wn, or extend th[...]
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Page 8
65-0109—8 G.R. Rev . 01-02 www .honeywell.com Printed in U.S.A. on recycled paper containing at least 10% post-consumer paper fibers. Automatio n and Control Sol utions Honeywell In ternational Honeywell Eu rope S.A. Honeywell Lat in American Honeywell Honeywell Limited-Honeywell Limitée Control Products 3 Avenue du Bourget Region 1985 Douglas D[...]