Summary of the content on the page No. 1
L404F,T,V
®
PressureTrol Controllers
PRODUCT DATA
FEATURES
• Models available in a series of control ranges, and
pressure scales in kPa and psi.
• All models automatically reset and have an adjustable
differential.
• Models have snap switch to open or close a circuit on
a pressure rise.
• Case has a clear plastic cover so setpoints can be
observed.
• 1/4 inch—18 NPT connection for pipe on diaphragm
assembly.
• Ground screw terminal.
L404F:
• Controllers may be used with steam, air, or
nonc
Summary of the content on the page No. 2
® L404F,T,V PRESSURETROL CONTROLLERS SPECIFICATIONS Model: ® L404F,T,V PressureTrol Controllers. See Table 1. Table 1. Models with kPa—psi and Other Pressure Scales. Maximum Diaphragm a Operating Ranges Subtractive Differential pressure Model Number kPa psi kPa psi kPa psi L404F1060 15 to 100 2 to 15 15 to 40 2 to 6 170 25 L404F1078 35 to 350 5 to 50 40 to 100 6 to 14 590 85 b L404F1094 140 to 2070 20 to 300 140 to 345 20 to 50 2410 350 L404F1102 70 to 1035 10 to 150 70 to 150 10 to 22 1550 225
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® L404F,T,V PRESSURETROL CONTROLLERS Table 2. Conversion Table. Operating Range Conversions Subtractive Differential Conversions 2 2 kg/cm kPa psi kg/cm kPa psi 0.1 to 1.05 15 to 100 2 to 15 0.15 to 0.4 15 to 40 2 to 6 0.4 to 3.5 35 to 350 5 to 50 0.4 to 1.0 40 to 100 6 to 14 0.7 to 10.0 70 to 1035 10 to 150 0.7 to 1.6 70 to 150 10 to 22 1.5 to 20.0 140 to 2070 20 to 300 1.5 to 3.5 150 to 300 20 to 50 Table 3. Switch Ratings (Amperes). Switching Action: Snap switch breaks R-B (closes R-W) on pr
Summary of the content on the page No. 4
® L404F,T,V PRESSURETROL CONTROLLERS Pressure Gauge Mounting INSTALLATION To mount beside a pressure gauge, remove the gauge, and install in its place the steam trap with a tee on top. Mount the ® When Installing This Product… PressureTrol unit and pressure gauge on the side of the tee 1. Read these instructions carefully. Failure to follow them by means of nipples and elbows (see Fig. 2). could damage the product or cause a hazardous condition. Remote Mounting 2. Check on the ratings given
Summary of the content on the page No. 5
® L404F,T,V PRESSURETROL CONTROLLERS MAIN STRAINER OIL ATOMIZER LINE MANUAL SHUTOFF LOW OIL OIL LOW OIL HIGH OIL TO OIL MANUAL VALVE PRESSURE PUMP WITH TEMPERATURE RECIRCULATING PRESSURE BURNER SHUTOFF CONTROLLER PRESSURE RELIEF VALVE AND SAFETY CONTROLLER VALVE SHUTOFF VALVE ATOMIZING MEDIUM M17861 (AIR OR STEAM) Fig. 3. Typical locations of pressure controllers in an oil burner system. WIRING OIL PRESSURE WARNING CONTROLLER (AT RIGHT Electrical Shock Hazard. ANGLES TO THE Can cause severe
Summary of the content on the page No. 6
® L404F,T,V PRESSURETROL CONTROLLERS LINE VOLTAGE OTHER L404F PRESSURETROL THERMOSTAT CONTROLLERS, OIL PRESSURE LIMITS, AND 2 CONTROLLER INTERLOCKS FLAME R L1 SAFEGUARD (HOT) W CONTROL L2 L2 B M9790 MOTOR Fig. 10. Hookup of an oil pressure controller used on a single burner or multiburner system with an external oil pump. L1 L2 (HOT) POWER 1 SUPPLY SETTINGS AND ADJUSTMENTS 1 PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. When the pressure at the control rises above the L404
Summary of the content on the page No. 7
® L404F,T,V PRESSURETROL CONTROLLERS However, if recalibration is necessary, remove the cover and loosen the setscrews which hold the scaleplate. Adjust the DIFFERENTIAL PRESSURE ADJUSTING SCREW ADJUSTING SCREW plate up or down, as required, to bring the device into GROUND SCREW calibration. Tighten the setscrews securely and replace the SCALEPLATES cover. MAIN SCALE CHECKOUT PRESSURE INDICATOR After the controller has been installed, wired and adjusted, it DIFFERENTIAL should be tested wit
Summary of the content on the page No. 8
® L404F,T,V PRESSURETROL CONTROLLERS Automation and Control Solutions Honeywell International Inc. 1985 Douglas Drive North Golden Valley, MN 55422 Honeywell Limited-Honeywell Limitée 35 Dynamic Drive ® U.S. Registered Trademark Toronto, Ontario M1V 4Z9 © 2010 Honeywell International Inc. 71-2429—06 M.S. Rev. 09-10 customer.honeywell.com Printed in U.S.A.
