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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Carrier 48TM020, 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 Carrier 48TM020 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 Carrier 48TM020. 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 Carrier 48TM020 should contain:
- informations concerning technical data of Carrier 48TM020
- name of the manufacturer and a year of construction of the Carrier 48TM020 item
- rules of operation, control and maintenance of the Carrier 48TM020 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 Carrier 48TM020 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 Carrier 48TM020, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Carrier 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 Carrier 48TM020.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Carrier 48TM020 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
Manufactu rer reser ves the rig ht to dis continue , or chan ge at a ny time, spec ificat ions or des igns without notice an d withou t inc urring obligations. PC 111 Catalo g No. 534-8011 2 Pr inted in U.S .A. Form 48T M-1SO Pg 1 5-02 Replaces: New Book 1 4 Ta b 1 a 6 a User’ s Inf or mation Man ual NO TE T O INST ALLER This manual should be lef[...]
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Page 2
2 T O SHUT UNIT OFF See Fig. 1 for l ocation of gas valve. Refer to Fig. 3 w hile proceeding with the following steps. Step 1 — Set r o om th e r mo st at to lowest temperat ur e setting and set SYSTEM switch to OFF position. Step 2 — Close the external manual gas valve. Step 3 — T urn off the electrical powe r supply to the unit. Step 4 — [...]
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Page 3
3 STEP 1 STEP 2 STEP 3 STEP 4 STEP 5 STEP 6 STEP 7 STEP 8 STEP 9 STEP 10 Fig. 2 — To Light Unit[...]
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Page 4
4 STEP 1 STEP 2 STEP 3 STEP 4 48TFD0 05-009 48TFE 004-007 48TFL00 5,006 48TFM00 4-006 48TFF004 -012 48TFD0 12,014 48TF E00 8,01 4 48TF N00 4-00 6 STEP 5 48TFD00 5-009 48TFE004-0 07 48TFL005, 006 48TFM004 -006 48TFF004-0 12 48TFD01 2,014 48TFE008,0 1 4 48TFN00 4-006 STEP 6 STEP 7 STEP 8 STEP 9 STEP 10 Fig. 2 — To Light Unit STEP 1 STEP 2 STEP 3 ST[...]
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Page 5
5 Heat Exc hanger — T o ensure depe ndable and efficient heating operation, the heat exchanger should be checked by a qualified maintenance person before each heating season, and cleaned when nec essary . This chec kout should not be attempt - ed by anyone not having the required expertise and e quipment to do the j ob properly . Checking and/or [...]
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Page 6
6 3. Using a flashlight, carefully inspec t the burner areas for dirt, soot, rust, or scale. 4. When you have completed your inspection, follow the start-up procedures in this manual t o restore your unit to operation. 5. Observe unit heating operation, a nd watch the burner flame with the access panel removed, to see if it is bright blue. If you o[...]
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Page 7
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Page 8
Manufactu rer reser ves the rig ht to dis continue , or chan ge at a ny time, spec ificati ons or des igns without notice an d wit hout inc urring obligations. PC 111 Catalo g No. 534-8011 2 Pr inted in U.S .A. Form 48T M-1SO Pg 8 5-02 Replaces: New Book 1 4 Ta b 1 a 6 a Copyright 20 02 Car rier Cor po ration[...]