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 de-ener- gize reconnecting the load(s) connected to the PowerMaster assembly.

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

 

 

pOWER

M

 

 

aster

Load

 

 

K1

 

 

 

Center

 

 

 

 

 

 

Customer

 

 

 

Selected

 

 

 

Load #1

 

 

 

K2

Transfer

 

 

Switch

 

Customer

Auxiliary

 

Selected

Contacts

 

Load #2

Aux1

Aux2

Control circuit

 

Connections

 

 

 

 

Control

Circuit #1

Control

Circuit #2

7

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Generac Generator technical manual Testing the Powermaster Operation, POWER Aster

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