Kussmaul 091-75 User Manual

FILE: 091-75 REV.B

DATE: 10-19-00

INSTRUCTION MANUAL

LOAD MANAGER

MARK IV

A 10 CHANNEL SEQUENCER

AND

LOAD SHEDDING CONTROLLER

MODEL# 091-75

INPUT: 12 VOLTS D.C.

3 YEAR WARRANTY

INTRODUCTION:

The Load Manager Mark IV is a 10-channel sequencer and load shedding
controller controlling 10 external relays that are supplied by the installer.
Provision has been made to permit the installer to sequence only a total of 5, 6,
7, 8, 9 or 10 channels. Those channels for which sequencing is not selected will
be energized constantly and controlled only by there own external, manually
controlled switches or by the load management circuits.

Load management for the 10 channels is completely independent of the
sequencing function. Ten “dip switches” are provided, one for each channel to
establish the load shedding priority. These switches permit an absolutely
arbitrary selection of the shedding sequence and in addition permit any of the
channels to be “locked out” and not be load shed under any circumstances.

INSTALLATION:

Install the Load Manager Mark IV in any convenient location where it is protected
from water or excessive temperatures. Figure 1 is an Installation and Wiring
Schematic illustrating the wiring of the manual control switches and relays.

NOTE
The LOAD MANAGER MARK IV is designed to operate relays. It is
not necessary to connect to all of the outputs. Any outputs at the
discretion of the installer may remain unused. Nothing need be
connected to the unused outputs. Relays must have a coil resistance
of 40 ohms or greater.

REV.A 10 /19/00

K10

LOAD MANAGER

CLOSE TO ENABLE

REDUCE

S10

YELLOW

THIS LINE POWERS THE LOAD MANAGER

GROUND

2

1

4

3

5

7

6

8

9

10

11

12

13

14

15

16

PROGRAMMING:

Recognizing that priorities may change after an installation is made, the LOAD
MANAGER MARK IV is designed so that the priority of load shedding may be
easily altered.

Sequencing of the loads occurs at approximately ½ second intervals starting with
the relay connected to terminal 1 and progressing to the relay connected to
terminal 10.

Note that sequencing of the loads is not programmable but is controlled by the
wiring connections to the LOAD MANAGER.

Ten sets of dipswitches are provided for setting the priority of load shedding.
Each set of dip switches controls one output and contains 10 individual switches.
Setting any one of the individual switches to the “ON” position determines the
load-shed priority of that output. That is, placing the #1 switch in the “ON”
position determines that this output will be the first load to shed. Placing #2
switch in the “ON” position will shed this output next. Note that any of the 10 sets
of dipswitches can be set to shed first and any other to be shed next. This
results in a completely random load shedding priority.

NOTE

IF THE INSTALLER DETERMINES THAT SOME LOADS SHOULD NOT
BE SHED UNDER ANY CIRCUMSTANCES, THEN THE DIP SWITCH
CONTROLLING THAT LOAD SHOULD BE ALL SET IN THE “OFF”
POSITION.

SEQUENCE CONTROL:

The installer wiring the relays to the LOAD MANAGER MARK IV controls load
sequencing. In order to limit the sequencing to fewer than 10 channels a 5­element dipswitch has been provided. This switch locks out the sequencing
function for channels 6, 7, 8, 9, and 10. Placing the #1 switch in the “ON”
position enables channel 6 instantly, not in sequence. Placing the #2 switch in
the “ON” position enables channel 7 and so forth. This sequencing lockout
control has no effect on the load shedding operation. Any or all the channels that
are removed from the sequencer are still controlled by their load shedding
program switches.

INSTALLATION RECORD & WARRANTY

Date Installed________________________________________
Installed By___________________________________________
Vehicle Identification_________________________________
Vehicle Owner________________________________________

WARRANTY

All products 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. Equipment
is to be returned, shipping charges prepaid and will be returned, after repair,
shipping charges paid.

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.