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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Chromalox PN401, 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 PN401 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 PN401. 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 PN401 should contain:
- informations concerning technical data of Chromalox PN401
- name of the manufacturer and a year of construction of the Chromalox PN401 item
- rules of operation, control and maintenance of the Chromalox PN401 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 PN401 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 PN401, 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 PN401.
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 PN401 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
PN401 FXTH 161-051300-001 FEBRUARY, 2008 4 and Installation, Operation RENEWAL PARTS IDENTIFICATION Ch ro m alox ® Chr omalox T ype FXTH Flexible T ank Heater Amp / T ube Catalog Number of Recommended Minimum Heater Heater No. T ubes Approx OCC or WCC Control Centers Manhole Length Width and Catalog Net Wt. kW 240 480 Size (In.) B C Circuits Numbe[...]
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Page 2
GENERAL UNCRA TING AND HANDLING OF HEA TER The Chromalox FXTH Flexible T ank Heater is designed for heat- ing viscous liquids in large steel, concrete or fibrous glass tanks with normal manhole entry . Standard equipment with every heater includes flexible pipe and 14’ riser(s), two lifting cables, 4” high sludge legs and a 50-250° non-indicat[...]
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Page 3
PREP ARA TION OF T ANK TO RECEIVE HEA TER INST ALLA TION OF HEA TER ASSEMBL Y IN T ANK Manhole Cover 3/8” Min. 8 - 3/8” - 11 Drilled and T apped Equally Spaced Holes on 11-3/4” B.C. 22-1/2” 9-1/2” ± 1/4” Dia. Hole By Customer Conduit Opening 13” Dia. (See Note 1) By Customer Figure B Figure C Machining of Manhole Cover to Receive FXT[...]
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Page 4
INST ALLA TION OF HEA TER ASSEMBL Y IN T ANK (cont’d.) 5. Begin lowering heater into tank as per Figure G, Step 1 thru 3 (end manhole) or Figure H, Step 4 thru 7 (center manhole). Once the heater has touched bottom, use pulling wire (front lifting cable) to pull heater toward far end of tank. 6. Before lowering back end of heater , visually gage [...]
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Page 5
INST ALLA TION OF HEA TER ASSEMBL Y IN T ANK (cont’d.) G. Carefully unwind and straighten thermostat capillary tube. The capillary must be reasonably straight. Be absolutely certain the bulb is seated at bottom of well. Carefully coil any excess capil- lary and position next to thermostat and away from electrical con- nections. Repeat same proced[...]
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Page 6
ELECTRICAL AND OPERA TIONAL CHECKS A. Having circuit breaker and power switch in “off” position, make sure proper voltage supplied matches voltage of control panel and elements. B. Adjust controlling thermostat in terminal housing to a 50°F read- ing. Increase setting until thermostat switch just “clicks”. This setting is to be used for in[...]
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Page 7
OPTIONAL EQUIPMENT T emperature Indicators (Suffix “D”) (FXTH Heater Assembly and Control Center will have suffix "D" e.g. FXTH-1 1206D, WCG15-213D) MOUNTING T emperature indicators are balanced for accurate reading in a normal vertical position unless specified otherwise. All pyrometers labeled "shielded meter" may be used [...]
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Page 8
FXTH-11206 6 063-115244-004 063-115244-002 FXTH-11508 8 063-115244-003 063-115244-004 FXTH-11510 10 063-115244-005 063-115244-006 FXTH-11512 12 063-115244-009 063-115244-010 FXTH-12010 10 063-115244-007 063-115244-008 FXTH-12012 12 063-115244-011 063-115244-012 FXTH-12015 15 063-115244-013 063-115244-014 FXTH-12718 18 063-115244-015 063-115244-016 [...]
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Page 9
REPLACEMENT P AR TS FOR OCC AND WCC CONTROL CENTER (cont’d.) Qty . Description Part Number OCC or WCC-15-413, 480V , 1-3ø, 10 & 12 kW 1 Circuit Breaker , 480V , 20 Amp, 3 pole ........................104-071818-018 1 Contactor , 600V , 20 Amp, 3 pole ................................072-120812-005 2 Fuses, FNQ 1/2 (F1 and F2).................[...]
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Page 10
REPLACEMENT P AR TS FOR OCC AND WCC CONTROL CENTER (cont’d.) Qty . Description Part Number OCC or WCC-35-413, 480V , 1-3ø, 27 kW 1 Circuit Breaker , 480V , 45 Amp, 3 pole ........................104-071818-023 1 Contactor , 600V , 60 Amp, 3 pole ................................072-120812-002 2 Fuses, FNQ V2 (F1 and F2)...........................[...]
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Page 11
11[...]
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Page 12
1347 HEIL QUAKER BL VD., LA VERGNE, TN 37086 Phone: (615) 793-3900 www .chromalox.com Limited Warranty: Please refer to the Chromalox limited warranty applicable to this product at http://www .chromalox.com/customer -service/policies/termsofsale.aspx.[...]