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Automatic Tests:
• Unit tested once every month (28 days) for one minute duration
• Unit tested every six months alternating between 30 and 60 minute duration.
• Pressing the test button will end an automatic test routine
Load-Learn Function:
The unit has the capability to automatically detect and store the total connected load.
The unit can also re-learn the connected load should the output load need to be increased or decreased at a later
time. The initial automatic load-learn function is performed when the batteries have reached full charge (27.4V).
A manual load-learn function can also be initiated by holding down the test switch for 3 seconds. The manual load-
learn function should only be performed when the batteries have reached full charge.
During automatic or manual load-learn functions the status indicator LED will alternate between green/red blinks.
Depressing the test switch for 3 seconds during the load-learn function cancels the function. If the manual load-learn
function is canceled the unit will begin another automatic load-learn function when the batteries have reached full
charge.
201.2 Trouble Shooting Service Alert Code Faults
Battery not connected:
• battery string wiring is incomplete
• battery fuse (FUSE1) on inverter pcb open
Battery fault:
• battery voltage below 24V following one minute test
• battery voltage below 21V following all longer duration tests
Charger fault:
• battery voltage not at minimum 27.4V after 72 hour charge
• battery voltage greater than 28.4V
Transfer fault /No load detection:
• output fuse open (120 or 277V)
• connected output load is less than 25W
Lamp/load failure:
• 10% or greater reduction in connected load - see Load-Learn Function
The Service Alert Code will continue until the fault is corrected. Once the fault is corrected initiate the one minute or
90 minute test, as required, and the service alert code should be cleared.
202. Remote Test Switch Accessory
202.1 Installation
The contractor is to install the Remote Switch Plate as shown in Figure 201-1. Lead extensions are to be added
between the switch plate and the connectors provided in the kit with wire nuts. Once the extensions are added, the
connector from the yellow LED should be connected to HDR7, the green LED connector to HDR5, and the switch
Service Alert Code
One blink on/pause
Battery not connected
Two blinks on/pause
Battery fault
Three blinks on/pause
Charger fault
Four blinks on/pause
Transfer fault or No load detected
Five blinks on/pause
Lamp/load failure