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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Chromalox PK407-4, 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 Chromalox PK407-4 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 Chromalox PK407-4. 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 Chromalox PK407-4 should contain:
- informations concerning technical data of Chromalox PK407-4
- name of the manufacturer and a year of construction of the Chromalox PK407-4 item
- rules of operation, control and maintenance of the Chromalox PK407-4 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 Chromalox PK407-4 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 Chromalox PK407-4, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Chromalox 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 Chromalox PK407-4.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Chromalox PK407-4 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
(Supersedes PK407-3) PK407-4 AR 161-562793-001 MARCH, 2004 4 and Installation, Operation RENEWAL PARTS IDENTIFICATION T ype AR Industrial Thermostat (Thr ee Phase) © 2010 Chromalox, Inc. 2-21/32" Length (Refer to Specifications T able A) Dia. Bulb 2" O.D. T yp. Capillary 2-21/32" 4-3/32" Sensing Bulb with 7’ Standard Capillar[...]
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Page 2
GENERAL NOTICE: T ype AR Thermostats are designed for temperature control service only . Because they do not fail safe, they should not be used for temperature limiting duty . The system designer is responsible for the safety of this equipment and should install adequate back-up controls and safety devices with their electric heat- ing equipment. W[...]
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Page 3
ELECTRIC SHOCK HAZARD. Disconect all power to heater before installing or servicing thermostat. Failure to do so could result in personal injur y or property damage. Thermostat must be installed by a qualified person in accordance with the National Electrical Code, NFP A 70. 1. Electric wiring to heater must be installed in accordance with local an[...]
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Page 4
1347 HEIL QUAKER BL VD., LA VERGNE, TN 37086 Phone: (615) 793-3900 www .chromalox.com RENEW AL P ARTS IDENTIFICA TION 027-057548-00 Mounting Brack 119-114623-003 152-025660-004 Housing 1423 Thermostat Thermostat Model Sub-Assembly Dial Knob Cover Base AR-2153 300-047848-002 169-019604-001 080-024763-001 015-013819-001 AR-2153P 300-047848-002 169-01[...]