Instruction/ maintenance manual of the product L404A-D Honeywell
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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 prot.
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 Specificat.
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.
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.
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 t.
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 boile.
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 ins.
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 scal.
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 boile.
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 cause.
An important point after buying a device Honeywell L404A-D (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Honeywell L404A-D yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Honeywell L404A-D - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Honeywell L404A-D you will learn all the available features of the product, as well as information on its operation. The information that you get Honeywell L404A-D will certainly help you make a decision on the purchase.
If you already are a holder of Honeywell L404A-D, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Honeywell L404A-D.
However, one of the most important roles played by the user manual is to help in solving problems with Honeywell L404A-D. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Honeywell L404A-D along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
