COMPONENT
ACTION
OPERATION
Fire-suppression system abort
Prevents the fire-suppression system from dumping due to a false alarm.
Control Power Available
light illuminated (green)
Control system is powered via TB1 positions (1 & 2) or (3 & 4).
Control Power Available
light is NOT illuminated
No power going to the control panel
Main Circuit Breaker with Shunt Trip
Assembly (If applicable)
•
To enable power flow
to the control panel,
flip the breaker switch
to the UP position
(On/Closed)
•
To disable power flow
to the control panel,
flip the breaker switch
to the DOWN position
(Off/Open)
Eliminates power to all loads connected to and downstream of the load distribution center
both locally and remotely.
IMPORTANT! The shunt trip assembly requires a dedicated, field-supplied source of
120-V power to TB1 pins 9 & 10.
If the breaker is tripped (EPO activation), you must reset the breaker before beginning the
restart protocols. See
Recovering from EPO Circuit Activation
below,for details.
Table 7.1 Component operation for the DCR Control Panel and Fire Suppression System (continued)
7.2 Recovering from EPO Circuit Activation
In the event that the EPO circuit is activated by the local EPO button on the SmartRow DCR or by a field-
supplied REPO button and the system is shut down, the following steps must be taken to recover:
1. If a Shunt-Trip Main Circuit Breaker is being used, reset the Shunt-Trip Main Circuit Breaker.
2. Disengage the EPO circuit:
NOTE: You must reset the EPO or REPO button that activated the circuit to reset the circuit. Pressing a
button that did not originally trigger the circuit will not reset the circuit.
a. If the local EPO button on the DCR activated the circuit:
•
For a Non-latching EPO button on the DCR: Push the EPO button to disengage the
circuit.
•
For a Latching EPO button on the DCR: Pull the button back to disengage the circuit.
b. If a remote EPO (REPO) button activated the circuit, reset the REPO button that
activated the circuit using the reset function of the field-supplied button.
Once cleared, the thermal-management units in the SmartRow DCR automatically start via
their dedicated power supply.
3. Turn the Local Emergency Power Off Override Timer past the 1/2-hour position.
NOTE: If needed, you may turn the timer to a maximum of 2 hours. If time is running low, turn the timer
past the 1/2-hour mark again to continue the bypass.
Vertiv
| SmartRow DCR Installer/User Guide |
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Содержание SmartRow DCR
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