Section 3 — Operation
PowerMaster Technical Manual
3.1TESTING THE POWERMASTER
OPERATION
The PowerMaster assembly can be functionally tested using the following steps:
Note: the following steps will reference a central air conditioner being used as the high demand appliance controlling the PowerMaster assembly.
1.Ensure the Utility supply is available and the transfer switch is in the utility position.
•Ensure the Central air conditioner is not run- ning.
•Check for proper operation of the load(s) con- nected to the PowerMaster assembly.
2.Run the Central air conditioner.
•Check for proper operation of the load(s) con- nected to the PowerMaster assembly.
3.Stop the central air conditioner.
•Check for proper operation of the load(s) con- nected to the PowerMaster assembly.
4.Simulate a utility loss.
•Wait for the generator to start and run.
•Wait for the transfer switch to transfer to the Standby position.
•Ensure the Central air conditioner is still not running.
•Check for proper operation of the load(s) con- nected to the PowerMaster assembly.
5.Run the central air conditioner.
•Contactors K1 and K2 should both energize disconnecting the load(s) connected to the PowerMaster assembly.
•Verify the load(s) connected to the PowerMaster assembly no longer operate.
6.Stop the central air conditioner.
•Contactors K1 and K2 should both
•Check for proper operation of the load(s) con- nected to the PowerMaster assembly.
7.Return the utility supply.
•Wait for the transfer switch to return to the utility position.
•Wait for the generator to go through it’s cool down period and shut off.
•Check for proper operation of the load(s) con- nected to the PowerMaster assembly.
Testing completed.
Figure 3 — System Diagram
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| pOWER | M |
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| aster | |
Load |
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| K1 |
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Center |
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| Customer |
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| Selected |
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| Load #1 |
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| K2 |
Transfer |
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Switch |
| Customer | |
Auxiliary |
| Selected | |
Contacts |
| Load #2 | |
Aux1 | Aux2 | Control circuit |
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Connections |
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Control
Circuit #1
Control
Circuit #2
7
