Schneider Electric P541-BASE Installation Instructions
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P541-BASE
P541-BASE
with one P-541 Series Receiver-Controller,
one 1-1/2" Pressure Gauge, and one 2"
Receiver-Gauge mounted
The P541-BASE is a mounting base designed to permit
stand-alone field-mounting of either the P541
(2341-501), direct acting — or the P541-RA
(2341-502), reverse acting — three-input
receiver-controller. It also provides for the mounting of
up to two receiver-gauges and two pressure gauges.
P541-BASE
Mounting Base
General Instructions
The compact size, versatility, and ample capabili
ty of a
base-mounted P541 or P541-RA receiver-controller
allows field-mounting of same for either new
construction; additions or modifications to existing
control systems; or the replacement of most existing
receiver-controllers.
Features
• Features compact size and ample capacity when
combined with a mounted P541 seri
re
ceiver-controlle
r
es
• Durable glass-filled nylon construction
• Barbed connections for 1/4 in. (6.8 mm) poly tubing
• Ports for gauges with 1/8 in. MNPT, center-back
con
nections
Applicable Literature
• P541, Receiver-Controller General Instructions,
F-23895
• P341, Receiver-Controller General Instructions,
F-23894
• Pneumatic Products Catalog, F-27383
Printed in U.S.A. 6-10 Copyright 2010 Schneider Electric All Rights Reserved. F-26081-4
SPECIFICATIONS
Construction: : Glass-filled nylon.
Maximum Air Pressure: : 30 psig (207 kPa).
Ambient Temperature Limits: :
Shipping and Storage, , -40 to 140° F (-40 to 60° C).
Operating, , 35 to 140° F (2 to 60° C).
Air Connections: : Five barbed fittings for 1/4 in. (6.4 mm) poly tubing.
Gauge Ports: : Four ports for center-back gauges with 1/8 in. MNPT fittings.
Mounting Dimensions (with P541 Series Controller and Gauges Mounted): :
5-3/8 H x 5-13/16 W x approx. 3-3/4 D in. (137 H x 148 W x approx. 95 D mm).
ACCESSORIES
See Accessories Chart, Table-1.
Table-1 Accessories Chart.
Schneider
Electric
Model No.
K541 22-171 Cover for P541 series receiver-controllers
N100-0010 21-038
N4-32 20-944
N100-2501 21-153
A253-12 2422-003
23-XX NA
A201-02 2420-001
AL-362 NA
M-101 20-983 1/8" MPT plug (for unused gauge ports)
MCS-G 22-133 Gasket (one is included with P541-BASE)
MCS-SCREW 22-134
Schneider
Electric
Uni-Line
Model No.
Description
Restrictor tee for 1/4 in. (6.4 mm) O.D. poly tubing, 1.0 SCFH
(plastic, barbed, red)
Restrictor tee for 1/4 in. (6.4 mm) O.D.copper tubing (brass
compression type)
Restrictor, in-line, for 1/4 in. (6.4 mm) O.D. poly tubing, 1.0 SCFH
(plastic, red)
Receiver-gauge, 2 in. diameter (0 to 100° F). Other ranges may
be displayed with the selection of a 23-XX series adhesive
receiver-gauge dial.
Series of adhesive receiver-gauge dials to fit A253-12 receivergauges, to indicate ranges other than 0 to 100° F (printed on dial
face).
Pressure gauge, 0 to 30 psi scale, 1-1/2 in. diameter
(Robertshaw logo)
Pressure gauge, 0 to 30 psi (0 to 200 kPa), 1-1/2 in. diameter
(Barber-Colman logo)
No. 6, 1/2 in. (13 mm) long, Plastite double-helix screw, for
attaching P541 or P541-RA receiver-controller to P541-BASE
(four included with P541-BASE)
TOOL S
Appropriate drill and drill bit for mounting screws
Appropriate screwdrivers and wrenches
2 Copyright 2010 Schneider Electric All Rights Reserved. F-26081-4
INSTALLATION
Inspection Inspect the package for damage. If damaged, notify the appropriate carrier immediately. If
undamaged, open the package and inspect the device for obvious damage. Return
damaged products.
Requirements • Piping diagrams
• Tools (not provided):
– Appropriate drill and drill bit for mounting screws
– Appropriate screwdrivers and wrenches
• Training: Installer must be a qualified, experienced technician
• Other accessories as appropriate
Caution:
• Use a refrigerated air dryer, particulate filter, and a coalescing filter to provide the
required clean, dry, oil-free air (refer to EN-123).
• The compressor oil must be non-paraffin, mineral base or naphtha base. The use of
synthetic or paraffin base oils will destroy pneumatic controls and void the warranty.
• Make all connections in accordance with the piping diagram.
• Avoid locations where excessive oil, dust, moisture, corrosive fumes or vibration is
present.
Mounting The mounting base provides for the mounting of one P541 or P541-RA receiver-controller
and four gauges having 1/8 in. MNPT, center-back connections. Refer to Figure-1.
Gauges
A selection of gauges may be installed onto the mounting base. Thread the desired gauges
into the 1/8 in. MNPT fittings and tighten, using an appropriate wrench. Refer to Figure-1.
Caution: Do not overtighten when installing a gauge or plug onto the mounting base.
Overtightening can cause the port to crack.
The gauges, and the ports to which they may be mounted, are as follows:
• Two 2 in. diameter, 3 to 15 psig (21 to 103 kPa) receiver-gauges for the primary (S) and
secondary (R) transmitter input ports.
• Two 1-1/2 in. diameter, 0 to 30 psig (0 to 207 kPa) pressure gauges for the branch output
signal port (B) and the remote con
trol-point adjustment, input signal port (C).
F-26081-4 Copyright 2010 Schneider Electric All Rights Reserved. 3
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