FILE: 091-150-115
DATE:07-15-08
REV.A
INSTRUCTION MANUAL
AC AUTO PUMP TIMER
A TIMER TO LIMIT THE RUNNING TIME
OF AC AUTO PUMPS
5
MODEL# 091-150-115
INPUT: 115 VOLTS, A.C.
OUTPUT: 115 VOLTS AC, 5 AMPS AC
3 YEAR WARRANTY
KUSSMAUL ELECTRONICS CO., INC.
170 CHERRY AVE., WEST SAYVILLE, N.Y. 11796
TEL: in NY 631-567-0314 TOLL FREE: 800-346-0857 FAX: 631-567-5826 EMAIL:Sales@Kussmaul.com
INTRODUCTION
The Model 091-150-115 Auto Pump Timer limits the duty cycle of the Auto Pump to 1 hour “ON”
and 1 hour “OFF”. In normal operation the pump runs for less than 1 hour so the timer is not
called upon to perform the shutdown function. However, on vehicles with exceptionally large
tanks or excessive leaks the pump running cycle is extended. At times, with larger leaks the
pump will be forced to run continuously. This creates excessive heat in the pump cylinder and
subsequently higher wear on the piston seal. The Pump Timer provides a 1 hour cool down
time after 1 hour of operation to materially extend the life of the seal.
TYPES OF INSTALLATION
The motors used in the (2)different AC Auto Pumps are not identical. Therefore they have
different starting and running characteristics. The Model 091-9HP contains a permanent split
capacitor motor that has an inherently high starting torque. The Model 091-9B-1 utilizes a
shaded pole motor with a lower starting torque. The 091-9B-1 thus requires that the cylinder
head pressure must be relieved prior to starting. This pressure relief function is provided by the
Auto Drain and therefore the Auto Drain must be added to the Model 091-9B-1 when the
A.C. Auto Pump timer is installed. The 091-9HP will start without the Auto Drain.
CAUTION
DO NOT OPERATE THE MODEL 091-9B-1
WITH AUTO PUMP TIMER WITHOUT
AN AUTO DRAIN INSTALLED
INSTALLATION
1. Mount the unit using the four holes provided (see Figure 3).
2. Open the Pressure Switch assembly (mounted on the Auto Pump). Move the black or
brown wire( line wire) from the pressure switch to the first position of the terminal strip
(see Figure 1 or 2).
3. Connect a 16AWG wire from the second position of the terminal strip to the open
terminal on the pressure switch as seen in Figure 1 or 2.
4. Connect a white or blue wire (neutral wire) to the third position of the terminal strip and
the pressure switch on the pump.
5. Check all wiring before proceeding.
6. Close the Pressure Switch assembly.
INSTALLATION WIRING DIAGRAM FOR 091-9B-1-AD
Auto Pump
Air Compr essor
Note: make sure
Auto Pump is
mounted vertical
091-150-115
AUTO PUMP TIMER
Auto Drain
Solenoid
Range
Nut
Shore Line
115 VAC
Figure 1
Installation Wiring
Pres sure
Switch
BLACK
WHITE
LINE
PUMP LINE
NEUTRAL
Termin al Strip
INSTALLATION WIRING DIAGRAM FOR 091-9HP AND 091-HP-AD
Auto Pump
Air Compr essor
Note: make sure
Auto Pump is
mounted vertical
091-150-115
AUTO PUMP TIMER
Range
Nut
BLUE
BLUE
BLUE
Pres sure Switch
Auto Drain
Solenoid
(Optional)
BROWN
BROWN
GREEN/YELLOW
GREEN/YELLOW
Shore Line
115 VAC
BROWN
Figure 2
Installation Wiring
Note: The Auto Pump HP uses CE rated line cords.
Wire the pump as followed: Brown wire -Line
Blue wire- Neutral
Green/Yellow wire-Ground
LINE
PUMP LINE
NEUTRAL
Termin al Strip
OUTLINE
Input Power: 115 VAC
Input Current Draw: 20 ma. with pump running, 5 ma. with pump resting.
Relay Contact Rating: 5 amps @ 115 VAC
Weight: 10 ounces
Figure 3
Outline Dimensions
INSTALLATION RECORD & WARRANTY
Date Installed
Installed By
Vehicle Identification
Vehicle Owner
WARRANTY
All product of Kussmaul Electronics Company Inc. are warranted to be free
of defects of material or workmanship. Liability is limited to repairing or
replacing at our factory, without charge, any material or defects which
become apparent in normal use within 3 years from the date the equipment
was shipped.
Kussmaul Electronics Company, Inc. shall have no liability for damages of
any kind to associated equipment arising from the installation and /or use of
the Kussmaul Electronics Company, Inc. products. The purchaser, by the
acceptance of the equipment, assumes all liability for any damages which
may result from its installation, use or misuse, by the purchaser, his or its
employees or others.
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