Service Manual

Table Of Contents

3. Startup 10-2019

3.10 Automatic Load Management

NOTICE

The capability to automatically add or remove specific electrical loads from

the generator set requires that load management devices be wired to the

generator set load management outputs.

When the generator set is started automatically in Standby mode due to a loss of

utility or manually by the operator, the control will energize all four load

management outputs, disconnecting the associated loads from AC power. Once

the transfer switch transfers to generator set power, the generator set control will

evaluate the total load on the generator set versus a set point programmed into the

control (80% of rated).

If the generator set’s total load is below the set point, the generator set control will

sequentially add the highest priority managed load every three minutes. Managed

loads will continue to be added as long as the size of the next priority load to be

added won’t increase total generator set load above the set point. The control

measures and stores the size of each managed load in its memory. Load priorities

are in the following order:

• Priority #1: load control 1

• Priority #2: load control 2

• Priority #3: load control 3

• Priority #4: load control 4

If the load on the generator set is reduced at any time to below the set point, the

control will add the next highest priority managed load in three minutes provided it

does not increase the total generator set load above the set point.

If the load on the generator set exceeds 95% of its rating, the generator set control

will begin disconnecting the lowest managed priority loads in sequence every

second until the load on the generator set is below 95% of its rating.

Priority #1 load is always the first added and the last disconnected; therefore, it

should be wired to the managed load deemed most critical to the homeowner.

Priority #2 load cannot be added before priority #1 load, nor can it be disconnected

before priority #3 or #4, etc.

3.11 Startup

1. Verify that the installation was completed correctly.

2. Read the operator manual. Perform the pre-start checks as instructed.

3. Connect the battery cables to the battery with the positive (+) cable first.

Immediately cover the battery post and terminal with the red cover provided on

the battery cable.