9
Operation
To select automatic transfer operation, do the following:
1. Set 50 Amp circuit breaker feeding the transfer switch
to “
ON
” position.
2. Install 15 Amp fuse in generator’s control panel.
3. Set generator’s circuit breaker to “
ON
” position.
4. Set generator’s system switch to “
AUTO
” position.
The system will now be in automatic operation mode.
NEMA 3R Enclosure Door
To open door, press the spring-load door lock to the right
and pull down on the door.
To close and latch door, push door closed against enclosure.
While in this position, push door upwards. This will cause
spring-load door lock to engage and latch door in place.
Enclosure door MUST be closed and latched at all times
except when system is being serviced.
Testing the Automatic Transfer Switch
Turn the 50 Amp utility disconnect circuit breaker in the
main distribution panel to the “
OFF
” position. The automatic
sequence will follow. To go back to utility power, turn the
50 Amp utility disconnect circuit breaker “
ON
”.
Automatic Sequence
Utility Fail
Utility voltage sensor senses when utility voltage is below
70% of nominal. Engine start sequence is initiated after
6 second time delay.
Engine Warm-Up
Time delay to allow for engine warm-up before transfer. Use
jumper on control board to select delay of 20 seconds or
50 seconds.
Transfer
Transfer from utility to generator supply occurs after
generator voltage is above set levels. Minimum engine run
time is 5 minutes after transfer.
Utility Pickup
Voltage pickup level is 80 percent of nominal voltage.
Retransfer
Retransfer from generator to utility power is approximately
10 seconds after utility voltage supply is above pickup level
and minimum run time is completed.
Engine Cool Down
Engine will run for 60 seconds after retransfer.
Maintenance
The transfer switch is designed to be maintenance free under
normal usage. However, inspection and maintenance checks
should be made on a regular basis. Maintenance will consist
mainly of keeping the transfer switch clean.
Visual inspections should be done at least once a month.
Access to transfer switch must not be obstructed. Keep
3 feet (92 cm) clearance around transfer switch. Check
for an accumulation of dirt, moisture and/or corrosion
on and around the enclosure, loose parts/hardware,
cracks and/or discoloration to insulation, and damaged or
discolored components.
Exercise the transfer switch at least once every three months
as described in
Testing the Automatic Transfer Switch
unless a power outage occurs and home generator has gone
through an automatic sequence. Allow generator to run for at
least 30 minutes.
Contact a licensed electrical professional to inspect and clean
the inside of the enclosure and other components of your
home generator system at least once a year.
When Calling for Assistance
You must have the Model Number and Serial Number from
the unit ID label at hand if it is necessary to contact a local
service center regarding service or repair of this unit. Obtain
this information from the unit ID label located on or inside
the enclosure.
To contact Briggs & Stratton call (800) 743 4115, between
8:00 AM and 5:00 PM CT.
Installation Inspection
Before placing the system into service, inspect the entire
installation carefully.
Complete the ”Installation Checklist” as you make the
inspection. Ensure all items have been filled-in and all
signatures have been obtained. Instruct the owner to mail
the white copy to the address shown on the checklist.
Not
for
Reproduction
