Vertiv SmartRow DCX, Installation Manual

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6.7 Fire Detection and Suppression System Operation Overview
The Vertiv™ SmartRow™ DCX Control Panel and Fire Suppression System monitors the air in the Vertiv SmartRow DCX for
evidence of combustion. If the smoke detector, mounted in the rear expansion channels down the entire row of equipment,
senses combustion products, the system activates the audible horn and visual strobe on the upper right corner of the Vertiv
SmartRow DCX Control Panel and Fire Suppression System panel (see Figure 6.1 on page 21).
After a 30-second delay, the system releases fire-suppression agent into the cabinets, locks out the Emergency Fans and
shuts down any connected UPS’s and the Liebert® CRV. This sequence may differ if NFPA 2001 is applicable and
coordinated with the local fire officials.
NFPA 2001 authorizes discretion of the owner and local fire officials to leave UPS and cooling systems operational when the
system is protected by a clean fire-suppression agent.
The Vertiv SmartRow DCX Control Panel and Fire Suppression System should be field-connected as a separate zone to the
building fire detection system.
6.8 Restarting after Vertiv™ SmartRow™ DCX Control Panel and Fire Suppression System Has
Shut Down
If the Vertiv SmartRow DCX Control Panel and Fire Suppression System Rack Supply has shut down:
1. Turn Emergency Power Off Override timer beyond the 1/2 hour position (see Figure 6.2 on page 22 and Vertiv
SmartRow DCX Control Panel and Fire Suppression System timers).
2. Confirm that input power is available.
a. If the Vertiv SmartRow DCX is powered by a stand-alone Liebert UPS and will not restart, put the UPS in
bypass and restart the remaining equipment. Call 800-543-2378 for assistance in putting the UPS in
bypass and for service support. For a Liebert three-phase UPS, call 800-543-2378 and for a Liebert
single-phase UPS, call 800-222-5877, option #1.
b. If the Vertiv SmartRow DCX controls, emergency fans and emergency-fan controls are connected to
rack-mounted UPSs, manually restart the UPSs.
The Vertiv SmartRow DCX Control Panel and Fire Suppression System have an internal battery for the fire suppression
system. The system will continue operating on this battery up to 48 hours unless power is restored earlier.
The Liebert® CRV is set up to restart when power is restored.
Fire Suppression Control Bypass Timer
To allow servicing the Vertiv™ SmartRow™ DCX Control Panel and Fire Suppression System, this timer is turned to its
maximum position by a qualified service representative. The timer provides a normally closed circuit bypassing the
internal, normally closed relays in the fire suppression panel. Once the timer expires, the circuit is returned to its normal
setting (Off).
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