Briggs & Stratton 071132, Installation And Operator'S Manual

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14 BRIGGSandSTRATTON.COM
System Setup
You must perform the following before operating the system:
• If generator is installed in an area regularly subjected to
temperatures below 40°F (4°C), select a 50 second warm up
time by moving jumper JP2 ( C ) installed on transfer switch
control board from ‘20’ position to ‘50’ position.
• Set the DPSW1 ( A ) and DPSW2 ( B ) dipswitches on the
transfer switch control board to match the kW rating of the
home standby generator, as described in Setting Dipswitches.
Setting Dipswitches
Dipswitches are used to adjust control board operation based
on generator capacity. DPSW1 and DPSW2 switches are set to
correspond to total system kW rating. Dipswitch DPSW1 ( A ) has
units of 1,000 watts; Dipswitch DPSW2 ( B ) has units of
10,000 watts.
Set dipswitches with power removed from the transfer switch to
ensure proper control system operation. If dipswitches are set
when power is present at transfer switch, a power reset needs to be
performed before the new dipswitch settings will take effect. Power
reset is when all power is removed from the transfer switch and
then reintroduced after 30 seconds.
NOTICE A transfer switch fault message will occur on standby
generator control board if dipswitches are not properly established
as noted above.
To properly establish the dipswitches, make sure that only one
dipswitch is set to “ON” position for DPSW1 and one dipswitch for
DPSW2. For example a 20kW generator, set DPSW2 dipswitch 20
to “ON” position and DPSW1 dipswitch 0 to “ON” position.
20,000 plus 0 equal 20,000 watts.
The “On” position for the dipswitches is the switch number ON
THE TRANSFER SWITCH CONTROL BOARD, not on the switch. For
example, for an 18,000 watt generator, set DPSW2 dipswitch 10 to
“On” position. Set DPSW1 dipswitch 8 to “On” position. 10,000 plus
8000 equals 18,000 watts. Set only one switch to “On” position
on DPSW1 and DPSW2.
Refer to following chart for proper switch selection(s).
NOTICE Air density is less at high altitudes, resulting in less
available engine power. Specifically, engine power will decrease 3.5%
for each 1,000 feet (300 meters) above sea level and 1% for each 10°
F (5.6°C) above 77°F (25°C). Generators located in these conditions
must have the transfer switch programmed appropriately for this
power decrease.
NOTICE Use extreme caution when setting dipswitches or
damage to control board will result.
• Use a pencil or small piece of plastic to set the dipswitch.
• NEVER use a screwdriver or any type of metal object to set
dipswitches.
CT1
CT2
DPSW2
DPSW1
J6
J5
J4
J3
J2
J1
C A B
kW Rating
of
Generator
DPSW
#1 “ON”
Position
DPSW
#2 “ON”
Position
7kW 7 0
8kW 8 0
9kW 9 0
10kW* 0 10
11kW* 1 10
12kW 2 10
13kW* 3 10
14kW 4 10
15kW 5 10
16kW 6 10
17kW 7 10
18kW 8 10
19kW 9 10
20kW 0 20
30kW 0 30
45kW 5 40
48kW 8 40
50kW 0 50
60kW 0 60
* For generators with a rating that includes 500 Watts, round down to
next lowest rating
(example: 13.5 kW set to 13kW)
A
B
A
B