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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Honeywell DT90, 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 Honeywell DT90 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 DT90. 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 DT90 should contain:
- informations concerning technical data of Honeywell DT90
- name of the manufacturer and a year of construction of the Honeywell DT90 item
- rules of operation, control and maintenance of the Honeywell DT90 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 DT90 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 DT90, 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 DT90.
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 DT90 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
EN0H 8578 UK07 R1 12/08 DT90 DIGITAL ROOM T HERMOSTAT PRODUCT SPECIFICA TION SHEET The new DT90 fam ily of digital room thermostats is a range of mark et leading products designed to provide comf ort with economy in modern heating sy stem s. Its large display and simple button inte rface m ake DT90 extremely easy to use. Energy efficiency is addres[...]
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Page 2
DT90 DIGITAL ROOM THERM OSTAT 2 EN0H 8578 UK07 R1 12/08 SPECIFICATIONS CONTROLS / DISPLAY LAY OUT ELECTRICAL Power supply 2 x 1.5V IEC LR6 (AA) Alkalin e cells Battery life Typically 4 years, mini mum 2 years (with correctly sp ecified alka line cells) Battery low warning Display will indic ate when battery power reserve is lo w. Unit w[...]
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DT90 DIGITAL ROOM THERM OSTAT 3 EN0H 8578 UK07 R1 12/08 ORDERING SPECIFICAT I ON Extra-Large Display The DT 90 displ ay i s m ore than doubl e the size of its predecessor, ensuring it is even easier to read and allowi ng more inform ation to be display ed, w hen required. The large characters and high contrast screen are especially important for th[...]
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DT90 DIGITAL ROOM THERM OSTAT EN 0H 8578 UK07 R1 12/08 4 INSTALLATION Location DT90 is for use in norm al domestic environments, and so should be located insi de the house or building w here the ambient temperature is within the range 0 to 40°C. Avoid locati ons with high levels of condensing moisture. As the temperature control element in the hea[...]
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DT90 DIGITAL ROOM THERM OSTAT EN 0H 8578 UK07 R1 12/08 5 a. Boiler b. Boiler (potential free connection) c. Therm al actuator d. Zone valve e. Electric actuator f. Electric heat (maxim um 1.6kW direct switching) WIRING CONNECTIONS PRODUCT DIMENSIONS[...]
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DT90 DIGITAL ROOM THERM OSTAT EN 0H 8578 UK07 R1 12/08 6 INSTALLER MODE – APPLICATIONS SETT INGS The DT 90 has a special In staller Mode where some features can be adjusted to suit the application an d the needs or lifesty le of the user. Each adjustable feature is called a Parameter. T hese are described below . Specific A pplications Setting Wh[...]
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DT90 DIGITAL ROOM THERM OSTAT EN 0H 8578 UK07 R1 12/08 7 INSTALLER MODE – HOW TO SET PARAMETERS Each parameter is identified by a 2-letter code , and has a range of values. Thes e are shown in the ta ble below, followed by instructions on ho w to enter Installer Mod e, how to select a parameter and change its val ue, and finally how to exit In st[...]
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DT90 DIGITAL ROOM THERM OSTAT Honeywell Control Systems Ltd. Newhouse Industri al Estate , Motherwell M L1 5SB , United Kingd om http://euro pe.hbc.honeywell.com EN0H 8578 UK07 R1 12/08 ENERGY EF FICIENCY AND THE ENVIR ONMENT Home energy use is currently responsible for m ore than ¼ of the tota l carbon emiss ions w hich contribute to climate chan[...]