Product Manual B

4. Operation - PowerCommand 1.1 3-2018

NOTICE

Open the generator set main line circuit breaker to prevent the transfer

switch from transferring building load to the generator set. The

generator set display will still show the RA series ATS transfer;

however, the switch will not transfer if the generator set breaker is

open.

1. In normal operation, the utility power is running to the transfer switch and

then to the building load, and the generator set is off.

2. Manually start the generator set via the standard control (HMI211)

mounted on the generator set.

FIGURE 27. MANUAL START SCREEN, STANDARD OPERATOR PANEL

3. The generator set starts.

4. If the ambient temperature is below 20 °F (6.7 °C), the generator set will

idle at 800 rpm for up to 2 minutes to allow sufficient turbo lubrication

after which the generator will ramp up to rated speed.

• Idle time is linear from 2 minutes at -40 F (4 °C), or below to off at 20

°F (6.7 °C) or above.