Bosch GWH 425 EF manual

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26

Go to page of

A good user manual

The rules should oblige the seller to give the purchaser an operating instrucion of Bosch GWH 425 EF, 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 Bosch GWH 425 EF 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 Bosch GWH 425 EF. 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 Bosch GWH 425 EF should contain:
- informations concerning technical data of Bosch GWH 425 EF
- name of the manufacturer and a year of construction of the Bosch GWH 425 EF item
- rules of operation, control and maintenance of the Bosch GWH 425 EF 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 Bosch GWH 425 EF 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 Bosch GWH 425 EF, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Bosch 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 Bosch GWH 425 EF.

Why one should read the manuals?

It is mostly in the manuals where we will find the details concerning construction and possibility of the Bosch GWH 425 EF 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

  • Page 1

    Water heat ers for u se with Natural an d L.P.G. GWH 425 EF Flow Modulat ed wit h Elec t ronic I[...]

  • Page 2

    2 6 720 607 017 WARNING : Improper installation, adjustment , alteration , service or mainte[...]

  • Page 3

    3 6 720 607 017 425 EF LP and 425 EF NG Specifications W ater C onnection 1 /2” Thread [...]

  • Page 4

    4 6 720 607 017 M I N I M U M I N S T ALLA TIO N C LE AR AN C E S F R O M C O M B U STI B LE AN[...]

  • Page 5

    5 6 720 607 017 G E N E R AL R U LE S T O FOLL O W FOR SAF E OP E R A TION 1. Y ou should f[...]

  • Page 6

    6 6 720 607 017 COMBUSTION AIR REQUIREMENTS The 425 E F water heater holds cold water in [...]

  • Page 7

    7 6 720 607 017 Fig. 3 - Incandescent Part icle T ray Illust ration The incandescent particl[...]

  • Page 8

    8 6 720 607 017 VENTING WARNING: Do not reduce the vent pipe size and do not common vent [...]

  • Page 9

    9 6 720 607 017 Fig 4: S ome V enting Guide Suggest ions An approved side wall vent termina[...]

  • Page 10

    10 6 720 607 017 Fig 5: Side wall exit locations for mechanical draft vent terminals SOFFI[...]

  • Page 11

    11 6 720 607 017 Fig. 6 - Appliance pressure regulator (with directional arrow on reverse side po[...]

  • Page 12

    12 6 720 607 017 GAS PIPING, CONNECTIONS Before connecting the gas supply, chec k the rating[...]

  • Page 13

    13 6 720 607 017 Fig.7 - Water valve and water connectors, top view W A T ER C O NNEC T I[...]

  • Page 14

    14 6 720 607 017 ELECTRICAL CONNECTIONS WARNING: For safety reasons, disconnect the power supply t[...]

  • Page 15

    15 6 720 607 017 OPER A T ING INST RUC T IO NS Before operating the heater , make sure tha[...]

  • Page 16

    16 6 720 607 017 Fig. 1 2 - Charact eristic Pilot Flame Flame sensor Piezo Electrode W at e r[...]

  • Page 17

    17 6 720 607 017 3. Water flow is not sufficient to activate heater . W ater flow rate at fau[...]

  • Page 18

    18 6 720 607 017 Mineral deposits can eventually (3-5 years in hard water areas) corrode [...]

  • Page 19

    19 6 720 607 017 WA T E R I S T OO HOT 1 . T emperat ure Select ion t oo high T urn the [...]

  • Page 20

    20 6 720 607 017[...]

  • Page 21

    21 6 720 607 017 Fig . 1 5 - Diagram of 425 E F 1 . Heat exchanger 2. Pilot assembly 3. Burn[...]

  • Page 22

    22 6 720 607 017 Fig. 1 6 - I NTE R IOR COM PO N E NTS D IAGR AM AN D P ARTS LI ST[...]

  • Page 23

    23 6 720 607 017 Fig. 1 6 INTERIOR COMPONENTS DIAGRAM AN D P ARTS LIST 425 E F 1 Cover 8 [...]

  • Page 24

    24 6 720 607 017 Fig. 1 7 - Flow chart of 425 EF[...]

  • Page 25

    25 6 720 607 017 Fift een Y ear Limit ed Warranty General B O SC H P R O water heaters are [...]

  • Page 26

    VU L C AN O T ermodomésticos S.A . Estrada de Cacia 380 1 - 8 56 Aveiro - P O RTUGAL Recycled [...]