Honeywell L404A-D manual

1
2
3
4
5
6
7
8
9
10

Go to page of

A good user manual

The rules should oblige the seller to give the purchaser an operating instrucion of Honeywell L404A-D, 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 Honeywell L404A-D 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 Honeywell L404A-D. 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 Honeywell L404A-D should contain:
- informations concerning technical data of Honeywell L404A-D
- name of the manufacturer and a year of construction of the Honeywell L404A-D item
- rules of operation, control and maintenance of the Honeywell L404A-D 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 Honeywell L404A-D 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 Honeywell L404A-D, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Honeywell 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 Honeywell L404A-D.

Why one should read the manuals?

It is mostly in the manuals where we will find the details concerning construction and possibility of the Honeywell L404A-D 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

    I I i i I I Honeywell L404A D F L604A L M Pressuretrol@ Controllers IA04 and L604 PressuretrofFJ Con trollers are li7J evoltage pressure controllers thatprovide oper ating control automatic limit protection ormanual reset limit protection for pressure systems of up to 300 psi 21 1 kglcm2 or 2068 kpa Ii Can be used with steam air non combustible gas[...]

  • Page 2

    04A D F L604A L M JECIFICATIONS ORDERING INFORMATION TRADELINE@ MODELS TRADELINE@ models are selected and packaged to provide ease of stocking ease of handling and maximum replacement value Specifications of TRADELlNE@ con trols are the same as those of standard models except as noted below TRADELINE@ MODELS A V All ABLE L604A Pressuretrol@ Control[...]

  • Page 3

    L404A D F L604A L M SPECIFICATIONS I I I Switching Midscale Subtractive Differential a Maximum Surge Action on Pressure Rise Operating Ranges a Adjustable Pressure Model to Setpoint psi kglem2 kPa psi kgfcm2 kPa psi kglem2 kPa L404A spst breaks 2to 15b c 14to1 0 14 to 103 2to6 14 to 41 14to4 35 345 circuit 5 to 50 35 to 3 5 34 to 345 4 to 12 28 to [...]

  • Page 4

    404A D F L604A L M JPECIFICA nONS DIMENSIONS See Fig 1 See Fig 2 for mounting s trap siphon loop WEIGHT 2 me 0 91 kg FINISH Gray APPROVALS Underwriters Laboratories Inc listed IA04 A B C D F L604A L M only file no MP466 v01 l0 guide no MBPR Canadian Standards Association certified LA04A B C D F L604A L only file no LR1620 guide noAOO E O REPLACEMEN[...]

  • Page 5

    l404A D F l604A l M INSTALLATION Installation WHEN INSTALLING TIllS PRODUCT 1 Read these instructions carefully Failure to follow them could damage the product or cause a hazardous condition 2 Check the ratings given in the instructions and on the prod ct to make sure the product is suitable for your application 3 Installer must be a tramed expenen[...]

  • Page 6

    L404A D F L604A L M INSTALLATION Mounting on a Boiler If it is not convenient to mount the controller alongside the pressure gauge install a steam trap siphon loop in the fitting provided by the boiler manufactUrer If there is no fitting mount the steam trap at a location recommended by the boiler manufacturer Screw the controller directly to the s[...]

  • Page 7

    Fig 6 l404 with a low voltage relay LOW VOLTAGE RELAY 24 VOLT THERMOSTAT L1 HOT POWER 1 SUPPLY a L2 LOAD PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED M8940 Fig 7 l404F l604A Oump r installed used as a high limit with an alarm circuit SPOT CONTROUER LOW UMfT Ll HOT POWER SUP PLY 12 FlAME SAFEGUARD CONTROL MOTOR OR OTHER LOAD PROVIDe [...]

  • Page 8

    04A D F L604A L M ETTING AND CHECKOUT Setting and Checkout SETIING In all models the differential is subtractive from the main scale set point The upper operating point is deter mined by the main scale set point while the lower operat ing point is determined by the main scale setting less the differential setting The L404F and L604A with jumper ins[...]

  • Page 9

    Boiler Installation If the controller is being used on a boiler installation test it as follows 1 Note the boiler pressure by checking the boiler pres sure gauge To perform this testproperly the boiler should have a pressure reading near the middle of the controller s main scale range 2 Turn the main scale adjusting screw Fig 11 until the m rlnscal[...]

  • Page 10

    Q4A D F L604A L M RVICE INFORMATION Service Information CALmRATION The controller was carefully calibrated during manufac turing and should not require recalibration Most calibra tion errors are caused by improper leveling The controller should be level when the pointer on the leveling indicator is directly over the index mark Fig 11 In some cases [...]