Schneider Electric P541-BASE Installation Instructions

Application

100

°F

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

• 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

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

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).

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