Generac Generator - Manual (Page 9)

7
3.1 TESTING 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
K1
K2
Customer
Selected
Load #1
Customer
Load #2
Selected
Control circuit
Connections
Control
Circuit #1
Control
Circuit #2
OWER aster
p
M
Load
Center
Transfer
Switch
Auxiliary
Contacts
Aux2 Aux1
Section 3 — Operation
PowerMaster Technical Manual