Honeywell L404T Manuel D’Utilisation
L404F,T,V PRESSURETROL
®
CONTROLLERS
3
71-2429—2
Table 2. Conversion Table.
Table 3. Switch Ratings (Amperes).
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.
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.
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
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.
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
Switch State
120 Vac
240 Vac
Full Load
8.0
5.1
Locked Rotor
48.0
30.6
3-3/4
(95)
1-1/16 (27)
13/16 (21)
1-3/16
(30)
HOLE FOR
1/2 INCH
CONDUIT
DIFFERENIAL
ADJUSTMENT
SCREW
1-1/2 (38)
2-1/8 (54)
M19635B
1-13/16
(46)
4-1/2 (115)
4-11/32 (111)
1-61/64 (50)
1-15/16 (49)
3/16 X 11/32
(5 X 9)
KNOCKOUT
MAIN SCALE
ADJUSTMENT
SCREW
1/4 –18 NPT
CLEAR
PLASTIC
COVER
3-7/8
(99)
2-3/4 (70)
3-1/4 (83)
DIMENSION
"A"
(SEE TAB)
1
1
1 15 TO 100 kPa (2 TO 15 PSI) SCALE MODELS ONLY.
PSI
RANGE
2 TO 15
5 TO 50
2 TO 15
5 TO 50
10 TO 150
20 TO 300
20 TO 300
DIMENSION
"A"
123
126
126
146
126
126
146