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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Lochinvar GKT2055, 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.
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Unfortunately, only a few customers devote their time to read an instruction of Lochinvar GKT2055. 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.
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First and foremost, an user manual of Lochinvar GKT2055 should contain:
- informations concerning technical data of Lochinvar GKT2055
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Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Lochinvar GKT2055 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 Lochinvar GKT2055, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Lochinvar 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 Lochinvar GKT2055.
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Table of contents for the manual
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Page 1
L TV V AL VE APPLICA TION INSTRUCTIONS FOR LOW TEMPERA TURE PROTECTION COPPER-FIN AND POWER-FIN MODELS CB 495 - 2066 / CH 401 - 2071 AND PB 501 - 2000 INS7238 Rev C Kit components: V AL30000 - 1 1/2" V AL VE Models: CB 45 - 500 • V AL20000 1 1/2" L T V V alv e • INS7238 Instruction Sheet V AL3048 - 2" V AL VE Models: CB 495 - 745[...]
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Page 2
2 of 8 T ypical piping applications: Figure 4 _Primary/Secondary Piping of a Single Boiler - 1 1/2" V alve Figure 5_ Primary /Secondary Piping of Multiple Boilers - 1 1/2" V alve for each boiler DET AIL DET AIL C = SYSTEM RETURN WATER B = FROM BOILER OUTLET A = BLENDED WATER *Best practice for Indoor/Outdoor reset. **Best practice for set[...]
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Page 3
3 of 8 T ypical piping applications (cont.): Figure 6_ Primary /Secondary Piping of a Single Boiler - 2" V alve Figure 7 _Primary/Secondary Piping of Multiple Boilers - 2" V alve for each boiler Note: V alve must be installed with proper port orientation. Failure to observe port markings on the valve body prior to installing the valve cou[...]
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Page 4
T ypical piping applications (cont.): Figure 8 _Primary/Secondary Piping of a Single Boiler - 2 1/2" V alve Figure 9 _Primary/Secondary Piping of Multiple Boilers - 2 1/2" V alve for each boiler DET AIL DET AIL Note: V alve must be installed with proper port orientation. Failure to observe port markings on the valve body prior to installi[...]
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Page 5
Figure 1 1 _2" L TV V alve - Up to 750,000 Btu/hr Figure 12 _2 1/2" L TV V alve - 990,000 Btu/hr and up Figure 10 _1 1/2" L TV V alve - 45,000 - 500,000 Btu/hr PORT "A" PORT "B" PORT "C" 6.125 3.750 5.250 A B C SIDE TOP 5 of 8 INS7238 Rev C[...]
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Page 6
Figure 14 _2" - Flow vs. Pressure Drop Figure 15 _2 1/2" - Flow vs. Pressure Drop FLOW vs. PRESSURE DROP FLOW IN U.S. GPM Pressure Drop, PSID Figure 13 _1 1/2" - Flow vs. Pressure Drop 6 of 8 INS7238 Rev C Maintenance instr uctions The L T V valv e is maintenance fr ee. It does not r equire r egular cleaning or calibration. I n most [...]
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Page 7
7 of 8 INS7238 Rev C Notes[...]
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Page 8
Revision Notes: Revision A (INS7238 Rev A) reflects the addition of the 1 1/2" valve. Revision B (INS7238 Rev B) reflects the addition of the maintenance instructions. Revision C (ECO C02335) reflects the revision of FIG .’s. 1, 2, 3, 4, 6 & 8. 10/08 - Printed in U.S.A.[...]