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