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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Elro KT250, 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 Elro KT250 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 Elro KT250. 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 Elro KT250 should contain:
- informations concerning technical data of Elro KT250
- name of the manufacturer and a year of construction of the Elro KT250 item
- rules of operation, control and maintenance of the Elro KT250 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 Elro KT250 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 Elro KT250, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Elro 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 Elro KT250.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Elro KT250 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
MANUAL BA TTERY EX CLUSIVE 2 X AA A ALKALINE INDOOR MO- TU-WE- TH-FR 4 SETTINGS SA TURDAY 2 SETTINGS SUNDA Y 2 SETTINGS GUARANTEE 2 YEAR 5° 35° MAXIMUM MINIMUM MANUAL OVERIDE 250 VOL T 5(3) AMP ON-OFF SWITCH 22 °C .0 GB[...]
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Page 2
-1- -2- T ABLE OF CONTENT 1 INTRODUCTION………………………..………… 2 2 INST ALL A TION……………………………………. 4 3 SETTING CLOCK …………………………………. 11 4 SETTING PROGRAM……………………………... 12 5 MANUAL OVERRIDE …………………………...… 15 6 HEA TER OPERA TION……?[...]
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-3- -4- 1.3 Features Several useful functions and operating modes have been incorporated to adapt a variety of customer needs. - LCD shows the “NEED TO KNOW” information only , which is more easy to understand - 8 Changeable Programs (4 programs for weekday; 2 programs each for Saturday and Sunday) - Real Time Clock with Day of W eek Display - [...]
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-5- -6- 2 INST ALL A TION This thermostat has been designed for simple and quick installation requiring only a few tools. C AUTION: 1. The appliance can only be mounted on dry indoor places. 2. A suitable fuse with rating not exceeding 5A, should be in the power line. 3. Observe the national regulation for the wiring. 4. Qualified electrician is re[...]
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-7- -8- 2.3 Wire Labeling 1. Disconnect and identify each wire. 2. T ape the wires to the wall to keep them from slipping through the hole in the wall. If the hole in the wall is larger than necessary , fill it in order to prevent hot or cold air to penetrate the thermostat. In this manner , the thermostat will function perfectly . 2.4 Choosing a L[...]
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-9- -10- 2.6 Connecting the Wires 1. Connect the system wires to the terminals according to the wiring diagram shown in the section 2.7 “WIRING DIAGRAM”. 2.7 Wiring Diagram The T103 thermostat can be used with single stage heating system. Inside the thermostat, three terminals which label COM, NC and NO would be found. In most case, COM and NO [...]
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-11- -12- 2.9 T emperature Span Span is the temperature difference between the turn ON and OFF temperature. The factory pre-set span is 1°C. For example, control temperature setting is 20.0°C. The heater will be operated when the room temperature drops to 19.5°C and will be turned off when the temperature rises to 20.5°C. 2.10 T emperature Meas[...]
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-13- -14- 4 SETTING PROGRAM 4.1 Pre-recorded P rograms Program Day of W eek Time T emp for Heat Control 1 W eekday 6:00 20°C 2 (Mon - Fri) 8:30 14°C 3 16:00 20°C 4 22:00 14°C 5 Saturday 7:00 20°C 6 23:00 14°C 7 Sunday 7:30 20°C 8 22:00 14°C 1. After power up or reset, press P button to view the prerecorded programs. All the programs are fac[...]
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-16- -15- 6. P ress D button will turn on or off the program. F or example, you want to turn off program 2, press P button to select program 2. Then press D button. P rogram 2 is off as shown beside. Press D button again will turn on the program. 7. Hold H, M, or button about 3 seconds to fast advance the hour , minute, or temperature adjustment ra[...]
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-17- -18- 5 MANUAL OVERRIDE At the normal operation mode, the current temperature setting could be overridden until the next program comes. 1. Push / button to view the overriding temperature which is set last time. 2. Hold / button about 3 seconds and the temperature indicator will flash one time. 3. Push / button to decrease or increase the tempe[...]
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-19- -20- 6 HEA TER OPERA TION 6.1 Heater On Operation The heater will be turned on by setting programs or manual override. If the heater is turned on by setting programs, the Program Number , and the Heater On Icon will be displayed as shown. If the heater is turned on by manual override, only the Heater On Icon will be displayed as shown. 6.2 Out[...]
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GB -21- GB -22- 8.2 Electrical Characteristics P ower Source: AA A 1.5V Alkaline battery x 2 (not included) Switching Relay: Resistive load: 5 A a t 2 5 0 V A C Inductive load: 3 A a t 2 5 0 V A C Clock Accuracy: ±60 seconds/month T emperature Measurement: 0 - 40°C T emperature Accuracy: ±1.0°C T emperature Control: 5 - 35°C T emperature Contr[...]