Section 2 — Operation
Carrier
2.5MANUAL TRANSFER OPERATION
2.5.1 TRANSFER TO GENERATOR POWER SOURCE
To start the generator and activate the transfer switch manually, proceed as follows:
1.Set the generator’s AUTO/OFF/MANUAL switch to OFF.
2.Set the generator’s main circuit breaker to its OFF (or open) position.
3.Turn OFF the utility power supply to the transfer switch using the means provided (such as a utility main line circuit breaker).
DANGER
Do not attempt to activate the transfer switch manually until all power voltage supplies to the switch have been positively turned off. Failure to turn off all power voltage supplies may result in extremely hazardous and possibly fatal electrical shock.
4.Use the manual transfer handle inside the transfer switch to move the main contacts to their “Standby” position, i.e., loads connected to the standby power source (Figure 2.2).
Figure 2.2 – Manual Transfer Switch Operation
5.To crank and start the engine, set the AUTO/OFF/MANUAL switch to MANUAL.
6.Let the engine stabilize and warm up for a few minutes.
7.Set the generator’s main circuit breaker to its ON (or closed) position. The standby power source now powers the loads.
2.5.2 TRANSFER BACK TO UTILITY POWER SOURCE
When utility power has been restored, transfer back to that source and shut down the generator. This can be accomplished as follows:
1.Set the generator’s main circuit breaker to its OFF (or open) position.
2.Let the engine run for a minute or two at
3.Set the generator’s AUTO/OFF/MANUAL switch to its OFF (or open) position. The engine should shut down.
4.Check that utility power supply to the transfer switch is turned OFF.
DANGER
Do not attempt to activate the transfer switch manually until all power voltage supplies
to the switch have been positively turned off. Failure to turn off all power voltage supplies may result in extremely hazardous and possibly fatal electrical shock.
5.Use the manual transfer handle inside the transfer switch to move the main contacts back to their UTILITY position, i.e., loads connected to the utility power source (Figure 2.2).
6.Turn ON the utility power supply to the transfer switch using the means provided.
7.Set the system to automatic operation as outlined in “Automatic Transfer Operation,” Section 2.3.
2.6SETTING THE EXERCISE TIMER
This generator is equipped with an exercise timer. Once it is set, the generator will start and exercise once every seven days, on the day of the week and at the time of day the following sequence is completed. During this exercise period, the unit runs for approximately 12 minutes and then shuts down. Transfer of loads to the generator output does not occur during the exercise cycle.
A switch on the control panel (see Figure 2.1) permits selection of the day and time for the system to exercise. At the chosen time, perform the following sequence to select the desired day and time of day the system will exercise.
1.Verify that the AUTO/OFF/MANUAL switch is set to AUTO.
2.Hold down the “Set Exercise Time” switch until the generator starts (approximately 10 seconds) and then release.
3.The generator will start and run for approximately 12 minutes and then shut down on its own. The exerciser will then be set to run at that time of day every week.
Carrier 11
