Honeywell L404T User Manual
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:
APPLICATION
L404F PressureTrol® Controllers provide operating control
with automatic limit protection for pressure systems of up to
2070 kPa, or 300 psi.
L404T,V PressureTrol® Controllers are for use on oil burner
systems for pressures up to 1035 kPa or 150 psi.
• Controllers may be used with steam, air, or
noncombustible gases, or fluids noncorrosive to the
pressure sensing element.
L404T:
• High pressure limits, break a circuit on oil pressure
rise above setpoint.
L404V:
• Low pressure limits, makes a circuit on oil pressure
rise above setpoint.
Contents
Application ........................................................................ 1
Features ........................................................................... 1
Specifications ................................................................... 2
Ordering Information ........................................................ 2
Installation ........................................................................ 3
Settings and Adjustments ................................................. 6
Checkout .......................................................................... 7
® U.S. Registered Trademark
© 2004 Honeywell International Inc.
All Rights Reserved
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L404F,T,V PRESSURETROL® CONTROLLERS
SPECIFICATIONS
Model:
L404F,T,V PressureTrol
®
Controllers. See Table 1.
Table 1. Models with kPa—psi.
Maximum Diaphragm
pressure
Model Number
Operating Ranges Subtractive Differential
a
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
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
c
L404F1219
L404F1243
L404F1227
L404F1235
L404F1300
15 to 100 2 to 15 15 to 40 2 to 6 170 25
c
35 to 350 5 to 50 40 to 100 6 to 14 590 85
c
70 to 1035 10 to 150 70 to 150 10 to 22 1550 225
c
140 to 2070 20 to 300 140 to 345 20 to 50 2410
c
415 to 1240 60 to 180 40 fixed 6.0 Fixed 1550 225
350
L404F1326 0 to 100 0 to 15 15 to 40 2 to 6 170 25
L404F1334 0 to 350 0 to 50 40 to 100 6 to 14 590 85
L404F1342 35 to 1000 5 to 145 70 to 150 10 to 22 1550 225
L404F1359 70 to 2000 10 to 290 140 to 345 20 to 50 2410
350
L404F1367 7 to 55 1 to 8 5 to 14 0.75 to 2 170 25
d
L404F1375
L404F1383
L404F1391
L404F1409
35 to 350 5 to 50 40 to 100 6 to 14 590 85
d
70 to 1035 10 to 150 70 to 150 10 to 22 1550 225
d
140 to 2070 20 to 300 140 to 345 20 to 50 2410
d
15 to 100 2 to 15 15 to 40 2 to 6 170 25
350
L404T1055 35 to 350 5 to 50 40 to 100 6 to 14 590 85
L404T1063 70 to 1035 10 to 150 70 to 150 10 to 22 1550 225
d
L404V1087
L404V1095
a
Nominal at midscale operating range.
b
Brass bellows instead of stainless steel diaphragm.
c
Models with 1/4-19 BSPT thread instead of 1/4-18 NPT thread.
d
Make-on-rise models with terminal B omitted for miswiring compliance.
70 to 1035 10 to 150 70 to 150 10 to 22 1550 225
d
35 to 350 5 to 50 40 to 100 6 to 14 590 85
b
b
b
b
ORDERING INFORMATION
When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the
TRADELINE® Catalog or price sheets for complete ordering number.
If you have additional questions, need further information, or would like to comment on our products or services, please write or
phone:
1. Your local Honeywell Automation and Control Products Sales Office (check white pages of your phone directory).
2. Honeywell Customer Care
1885 Douglas Drive North
Minneapolis, Minnesota 55422-4386
In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9.
International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France,
Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.
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L404F,T,V PRESSURETROL® CONTROLLERS
Table 2. Conversion Table.
Operating Range Conversions Subtractive Differential Conversions
kg/cm
2
kPa psi kg/cm
2
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).
Switch State 120 Vac 240 Vac
Full Load 8.0 5.1
Locked Rotor 48.0 30.6
Pressure Sensing Element: Stainless steel diaphragm (140
to 2070 kPa models) has brass bellows.
Maximum Ambient Temperature: 66°C (150°F). Also, refer
to note under Mounting.
Adjustment Means: Screws on top of control case. Scales
are marked in psi or kPa.
SCREW
1
1-3/16
(30)
3-3/4
(95)
DIMENSION
PSI
RANGE
2 TO 15
5 TO 50
10 TO 150
20 TO 300
"A"
(SEE TAB)
DIMENSION
3-7/8
(99)
2-3/4 (70)
HOLE FOR
1/2 INCH
CONDUIT
13/16 (21)
3-1/4 (83)
DIFFERENIAL
ADJUSTMENT
Mounting Means: 1/4 inch-18 NPT connection on diaphragm
assembly; or surface mounts using holes in back of case.
Dimensions: See Fig. 1.
Switching Action: Snap switch breaks R-B (closes R-W) on
pressure rise. Make-on-rise devices omit terminal B.
Grounding Means: Ground screw terminal marked with a
circled ground symbol.
Accessories:
14026 Steam Trap (118023 for BSPT models).
33312B Knurled Knob—fits on top of adjusting screws.
129564 Range Stop—range stop screw, Part No. 107194, and
wrench, Part No. 23466, to limit setpoint range.
4-1/2 (115)
4-11/32 (111)
1-61/64 (50) 1-15/16 (49)
MAIN SCALE
ADJUSTMENT
SCREW
"A"
123
126
126
146
3/16 X 11/32
(5 X 9)
KNOCKOUT
1-13/16
(46)
CLEAR
PLASTIC
COVER
1-1/16 (27)
1
1-1/2 (38)
1 15 TO 100 kPa (2 TO 15 PSI) SCALE MODELS ONLY.
Fig. 1. L404F,T,V approximate dimensions in inches (millimeters in parentheses).
INSTALLATION
When Installing This Product…
1. Read these instructions carefully. Failure to follow them
could damage the product or cause a hazardous
condition.
2. Check on the ratings given in the instructions and
1/4 –18 NPT
2-1/8 (54)
M19635B
marked on the product to make sure the product is
suitable for your application.
3. Installer must be a trained, experienced service
technician.
4. After installation is complete, check out the product
operation as provided in these instructions.
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