Testing The Automatic Transfer Switch; Te Sting The Symphony™ Ii Power Management System - Briggs & Stratton 071048 Guide D'installation Et D'utilisation

Testing the Automatic Transfer Switch

WARNING Testing must only be performed by
qualified personnel. Equipment contains high
voltage that can cause personal injury or death.
• Despite the safe design of the system, operating this
equipment imprudently, neglecting its maintenance or
being careless can cause possible injury or death.
Turn the utility service disconnect circuit breaker feeding the
transfer switch contactor to the "OFF" position. The system's
automatic sequence described below will initiate. To return to
utility power, turn the utility service disconnect circuit breaker
to the "ON" position.
Utility Fail
The generator senses when utility voltage is below
70 percent 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 transfer switch control board to select delay of
20 seconds or 50 seconds.
Transfer
Transfer from utility to generator supply occurs after voltage
is above set levels. The transfer switch control board LED
lights will change from green (utility) to red (generator)
and the Symphony II status light will change blink status
from Blink Blink_Pause_Blink Blink to Blink_Pause_Blink.
Minimum engine run time is 5 minutes after transfer.
Load Management
Five minutes after transfer to generator power, the remote
modules energize connected load(s) if generator power is
available, starting with the highest priority (1) through the
lowest priority (8). There is a 10 second delay between each
sequential activation.
The P1 through P8 LED's (A) on the Symphony II control
board will illuminate to show loads being added.
Loads connected to remote modules set to priorities 9 and
10 remain off for the duration of a utility power outage.
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. All remote module(s) will
remain OFF for five minutes after the power transfer.
Engine Cool Down
Engine will run for 60 seconds after retransfer.
14
Te sting the Symphony™ II Power
Management System
WARNING Testing must only be performed by
qualified personnel. Equipment contains high
voltage that can cause personal injury or death.
• Despite the safe design of the system, operating this
equipment imprudently, neglecting its maintenance or
being careless can cause possible injury or death.
The Symphony II system can be tested under either utility
power or generator power. Only one priority LED and
associated remote module will be powered (ON) at a time
during test mode.
• If TEST is not pressed again within 4 minutes AND
testing is being done under utility power, all managed
loads will resume operation under utility power after a
five minute delay.
• If TEST is not pressed again within 4 minutes AND
testing is being done under generator power, managed
loads will be added in the priority order set for
each load.
The test procedure in generator mode is as follows:
1. Turn the utility service disconnect circuit breaker
feeding the transfer switch contactor to the
"OFF" position.
2. After transfer to generator power, verify communication
LED is green on each remote module.
3. Press the TEST button (B) on the Symphony II system
control board. The Symphony II system control board
priority 1 LED (C) and load connected to remote
module set to priority 1 will turn ON.
B
A C
D
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