Murphy Swichgage Shutdown Panels Wai Series Users Manual

WAI Series to the manual 37d73d49-aa3b-4ccb-85b6-4fc307416552

2015-02-05

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Swichgage® Shutdown Panels for
Mobile Equipment of All Kinds

WAI-94032B
Revised 05-06
Catalog Section 30

WAI Series
■ Get the Same Original Equipment

WAI-271

Specified by Major OEM’s
■ Swichgage Instruments Include
Built-in Light Pipe Illumination
■ Prewired and Ready to Install
■ Alarm Only Model Saves Money on
Applications Not Requiring Shutdown
■ Available for 12 or 24 Volts

WAI-8

Description

Models Available

Application

WAI Series Murphy panels offer engine protection for on and off road mobile equipment.

WAI-2: Completelly enclosed and with convenient under-dash mounting provides
Swichgage instruments for low oil pressure
and high coolant temperature; visual and
audible alarms before automatic shutdown.
Includes a 270°pivoting, mounting bracket.

Trucks, buses, fork lifts, loaders, earthmovers–any engine powered mobile unit,
such as delivery vans, farm and construction
equipment, street sweepers.

WAI-3: Same as WAI-2 panel with a 3rd
Swichgage instrument for block coolant
pressure (0-15 psi).

Warranty

You get accurate engine readings and timedelayed automatic shutdowns. Flashing light
and mini-siren signal a warning before the
shutdown. Alarm-only panels (without shutdown capabilities) are also available.
WAI panels are easy to install and function
test without the need for expensive auxiliary
equipment. Each is a cost competitive and
effective system for engine protection.
The WAI Series Panels are complete diagnostic, engine-protection systems. Any vehicle or
engine can be monitored and in case of potentially damaging conditions an alarm will operate before the engine is shut down. WAI Panels
feature direct-reading, mechanical Swichgage
instruments (gauge and limit switch in one)
and Selectronic relays and alarms. Swichgage
instruments are internally lighted for night illumination.

WAI-4: Same as WAI-2 panel with a 3rd
Swichgage instrument for transmission temperature (140-300°F).
WAI-7: Open style panel same as WAI-2.
WAI-8: Open style panel provides
Swichgage instruments for low oil pressure,
coolant pressure and high coolant temperature; visual and audible alarms before automatic shutdown.
WAI-9: Open style panel same as WAI-8
with transmission temperature Swichgage
instrument instead of coolant pressure.
WAI-271: Open style panel similar to WAI-7
but for alarm-only.

WAI-94032B page 1 of 4

A limited warranty on materials and workmanship
is given with this FW Murphy product. A copy of
the warranty may be viewed or printed by going to
www.fwmurphy.com/support/warranty.htm

WAI-2
• Enclosed Panel
• Oil Pressure Swichgage instrument
• Coolant Temperature* Swichgage instrument
• Mini-siren
• FL3/TL2 flasher and light
• 760AF Magnetic Switch with 30 second time delay for alarm
before shutdown; 12 VDC, (optional 24 V)

WAI-3 / WAI-4
• Enclosed Panels
• Oil Pressure Swichgage instrument
• Coolant Temperature* Swichgage instrument
• Block Coolant Pressure* Swichgage instrument (WAI-3 only 0-15psi)
• Transmission Temp.* Swichgage instrument (WAI-4 only 140-300°F)
• Mini-siren
• FL3/TL2 flasher and light
• 760AF Magnetic Switch with 30 second time delay for alarm
before shutdown; 12 VDC, (optional 24 V)

WAI-7
• Open Style Panel
• Oil Pressure Swichgage instrument
• Coolant Temperature* Swichgage instrument
• Mini-siren
• TL7, Flasher Alarm Light
• 760AF Magnetic Switch with 30 second time delay for alarm
before shutdown; 12 VDC, (optional 24 V)

WAI-8 / WAI-9
• Open Style Panel
• Oil Pressure Swichgage instrument
• Coolant Pressure* Swichgage instrument (WAI-8 only 0-15psi)
• Transmission Temp.* Swichgage instrument (WAI-9 only 140-300°F)
• Coolant Temperature* Swichgage instrument
• Mini-siren
• TL7, Flasher Alarm Light
• 760AF Magnetic Switch with 30 second time delay for alarm
before shutdown; 12 VDC, (optional 24 V)
*Temperature capillary length is standard 6 ft. (1.8 m). Specify longer lengths.

WAI-94032B page 2 of 4

WAI-271
• Alarm-Only, Open Style Panel
• Oil Pressure Swichgage instrument
• Coolant Temperature* Swichgage instrument
• Mini-siren
• TL7, Flasher Alarm Light
• Available for 12 VDC or 24 VDC

*Temperature capillary length is standard 6 ft. (1.8 m). Specify longer lengths.

How to Order
Order by using the model number
(also see the quick reference guide below):

WAI-2
WAI-3
WAI-4
WAI-7
WAI-8
WAI-9
WAI-271

Options like 24 VDC, special capillary length,
delay time, etc, can be specified.

Enclosed, easy-mount panel
Open, easy-mount panel
201P-1-75 Engine oil pressure SWICHGAGE®
202T-1-220 Engine coolant temperature SWICHGAGE® (6 ft. [1.83 m] capillary)
202P-1-15 Engine coolant pressure SWICHGAGE®
203T-1-300 Transmission temperature SWICHGAGE® (6 ft. [1.83 m]) warning-only
760AF SELECTRONIC® relay (30 second time delay, 12V)
TL7 SELECTRONIC® flashing alarm (12V, negative ground)
TL2 and FL3 alarm light
SAH MINI-SIREN®
Diode 65010098, isolates transmission temperature for warning-only

WAI-94032B page 3 of 4

W
AI
2
W
AI
3
W
AI
W 4
AI
W 7
AI
W 8
AI
9

STANDARD PANEL ASSEMBLIES AND KITS ~ QUICK REFERENCE GUIDE

Typical Dimensions
WAI-7

WAI-2
8-31/64 in.
(216 mm)

8-1/64 in.
(203 mm)

4-9/16 in.
(116 mm)

5-57/64 in.
(149 mm)
3-29/32 in.
(99 mm)

213/16 in.
(71 mm)

7-3/8 in.
(187 mm)

6-7/32 in.
(158 mm)

2x 9/32 in. (7 mm) dia.

1-1/16 in.
(27 mm)

9/16 in.
(14 mm)
2x 5/16 in. (8 mm) slot
15/32 in.
(12 mm)

A

S WI CH

G

PH

A

Y

S WI CH

G

A
G

3-3/16 in.
(81 mm)

E®

1/2-14 NPT

Y

E®

1-1/2 in.
(38 mm)

PH

G

E®

E®

26 in. long
(660 mm)

NOTE: Process Connection on pressure
SWICHGAGE® is 1/8-27 NPT
5/8-18 UNF

3-43/64 in.
(93 mm)

R

G

F

MU

S WI CH

R

Y

MU

PH

P.S.I.

MU

A

R

G

MU

R

S WI CH

2-49/64 in.
(70 mm)

Y

G

PH

G

3-29/64 in.
(88 mm)

F

P.S.I.

1-21/32 in.
(42 mm)

WAI-8 / WAI-9

11/32 in.
(9 mm) Diameter

9-7/8 in.
(251 mm)

8-23/64 in.
(221 mm)

4-9/16 in.
(116 mm)

WAI-3 / WAI-4
10-63/64 in.
(279 mm)

10-33/64 in.
(267 mm)

1-1/16 in.
(27 mm)

9/16 in.
(14 mm)
2x 5/16 in. (8 mm) slot
15/32 in.
(12 mm)

Y

S WI CH

G

A

R

A

PH

Y

S WI CH

MU

NOTE: Process Connection on pressure
SWICHGAGE® is 1/8-27 NPT
5/8-18 UNF

A

1-21/32 in.
(42 mm)

8-7/16 in.
(214 mm)

7-3/8 in.
(187 mm)

9/16 in.
(14 mm)

S WI CH

G

A

PH

Y

S WI CH

G

1-1/16 in.
(27 mm)

A
G
E®

E®

MU

Y

G

PH

P.S.I.

www.fwmurphy.com

3-3/16 in.
(81 mm)

15/32 in.
(12 mm)

11/32 in.
(9 mm) Diameter

918.317.4100 Email: sales@fwmurphy.com

A

2x 5/16 in. (8 mm) slot

R

1-1/2 in.
(38 mm)

26 in. long
(660 mm)

G

WAI-271

R

1/2-14 NPT

G

F

P.S.I.

MU

R

G

E®

MU

S WI CH

E®

E®

MU

Y

G

PH

G

R

A
G

3-29/64 in.
(88 mm)

G

S WI CH

E®

E®

E®

S WI CH

2-25/32 in.
(71 mm)

Y

Y

F

P.S.I.

PH

PH

G

PH

R

A

MU

G

R

S WI CH

MU

Y

G

PH

G

3-43/64 in.
(93 mm)

MU

2x 9/32 in. (7 mm) dia.

R

4-7/64 in.
(105 mm)

3-1/16 in.
(78 mm)

8-25/64 in. (213 mm)

F

3-3/4 in.
(95 mm)

In order to consistently bring you the highest quality, full featured products, we reserve the right to change our
specifications and designs at any time. MURPHY, the Murphy logo, and Swichgage® are registered and/or common law trademarks of Murphy Industries, Inc. This document, including textual matter and illustrations, is copyright protected by Murphy Industries, Inc., with all rights reserved. (c) 2006 Murphy Industries, Inc.

In order to consistently bring you the highest quality, full featured products, we reserve the right to change our specifications and designs at any time.
Printed in U.S.A.

WAI-94032B page 4 of 4



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