Schneider Electric P541-BASE Installation Instructions

Application

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.

The compact size, versatility, and ample capability 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 series receiver-controller

•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 connections

Applicable Literature

•P541, Receiver-Controller General Instructions, F-23895

•P341, Receiver-Controller General Instructions, F-23894

•Pneumatic Products Catalog, F-27383

P541-BASE

Mounting Base

General Instructions

P541-BASE

15	20
10	25
5	30
0

	50	60
		70
	40	80
		90
		100
0	°F

P541-BASE

with one P-541 Series Receiver-Controller, one 1-1/2" Pressure Gauge, and one 2"

Receiver-Gauge mounted

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	Schneider
		Electric
	Electric		Description
		Uni-Line
	Model No.
		Model No.
	K541	22-171	Cover for P541 series receiver-controllers
	N100-0010	21-038	Restrictor tee for 1/4 in. (6.4 mm) O.D. poly tubing, 1.0 SCFH
			(plastic, barbed, red)
	N4-32	20-944	Restrictor tee for 1/4 in. (6.4 mm) O.D.copper tubing (brass
			compression type)
	N100-2501	21-153	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
	A253-12	2422-003	be displayed with the selection of a 23-XX series adhesive
			receiver-gauge dial.
			Series of adhesive receiver-gauge dials to fit A253-12 receiver-
	23-XX	NA	gauges, to indicate ranges other than 0 to 100° F (printed on dial
			face).
	A201-02	2420-001	Pressure gauge, 0 to 30 psi scale, 1-1/2 in. diameter
			(Robertshaw logo)
	AL-362	NA	Pressure gauge, 0 to 30 psi (0 to 200 kPa), 1-1/2 in. diameter
			(Barber-Colman logo)
	M-101	20-983	1/8" MPT plug (for unused gauge ports)
	MCS-G	22-133	Gasket (one is included with P541-BASE)
			No. 6, 1/2 in. (13 mm) long, Plastite double-helix screw, for
	MCS-SCREW	22-134	attaching P541 or P541-RA receiver-controller to P541-BASE
			(four included with P541-BASE)

TOOLS

Appropriate drill and drill bit for mounting screws

Appropriate screwdrivers and wrenches

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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 control-point adjustment, input signal port (C).

F-26081-4

Copyright 2010 Schneider Electric All Rights Reserved.

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