Det-Tronics EQP Fire and Gas Detection/Releasing System - Manual (Page 44)

3-25 14.1 95-8533
6. Connect the “B” terminal on the power supply
monitor to the negative (–) side of the backup
battery. Connect a correctly sized circuit breaker in
the battery circuit as shown in Figure 3-21. The
circuit breaker must be rated between 130% and
250% of the total load.
7. Connect the “C” terminal on the power supply
monitor to the negative (–) side of the power supply.
8. Wire the power distribution circuit breakers to the output
of the power supply. Circuit breaker ratings must be
between 130% and 250% of the full load rating.
9. Set the device network address for the power
supply monitor.
NOTE
For additional information, refer to the power
supply manufacturer’s instruction manual
provided with the support documentation
received with the Eagle Quantum Premier
system.
STARTUP
Turn on the power supply and allow the voltage to
stabilize at 27 volts before closing the circuit to the
battery.
1
4
C
B
AC BREAKER DC BREAKER
H
N
G
–
+
24 VDC
OUTPUT
POWER SUPPLY MONITOR 12
11
10
9
8
7
6
5
4
3
2
1
EQ21XXPS POWER SUPPLY
(See Note 9)
– +
12 VDC
– +
12 VDC
NRTL DISTRIBUTION CABINET
BATTERY
CIRCUIT
BREAKER
–
+ –
–
–
–
+
+
+
+
POWER DIST CKT #1
POWER DIST CKT #2
POWER DIST CKT #3
POWER DIST CKT #4
NOTES
1. AC INPUT SELECTABLE (THROUGH THE OIS) FOR 120 / 208 / 240 VAC.
2. BATTERY SIZE CALCULATED BASED ON SYSTEM LOAD.
3. CIRCUIT BREAKER SHALL PROTECT AGAINST EXCESSIVE CURRENT LOAD.
4. REMOVAL OF TERMINAL PLUG WITH POWER APPLIED TO TERMINALS B AND C
WILL DAMAGE POWER SUPPLY MONITOR.
5. NRTL DISTRIBUTION CABINET IS KEY LOCKED ENCLOSURE.
6. DASH LINES DENOTE PROTECTION AGAINST PHYSICAL DAMAGE.
7. ANY PRIMARY AND SECONDARY POWER SUPPLY UNITS MAY BE INSTALLED
EXTERNALLY TO THE NRTL DISTRIBUTION CABINET, PROVIDED THEY ARE
PROTECTED AGAINST PHYSICAL DAMAGE. ALL DEDICATED BRANCH CIRCUITS
AND CONNECTIONS BETWEEN PRIMARY AND SECONDARY POWER SUPPLY UNITS
AND THE NTRL DISTRIBUTION CABINET SHALL ALSO BE PROTECTED AGAINST
PHYSICAL DAMAGE.
8. SUPERVISION (SINGLE OPENS & GROUNDS) OF THE INTERCONNECTIONS
BETWEEN POWER SUPPLY (24 VDC OUTPUT) TO NRTL DISTRIBUTION CABINET
AND BACKUP BATTERIES TO NRTL DISTRIBUTION CABINET IS PERFORMED BY
EQ2100PSM POWER SUPPLY MONITOR.
9. THE CIRCUIT DISCONNECTING MEANS (AC & DC BREAKERS) SHALL BE
ACCESSIBLE ONLY TO AUTHORIZED PERSONNEL.
10. AC WIRING CABLE MUST BE ≤20 FEET IN CONDUIT.
E1951
AC MONITOR
BACKUP BATTERIES
AC POWER
See Notes 1 & 3
See Note 3
See Note 2
See Note 4
See Note 10
See Note 6
TERMINAL J1
Figure 3-21— Wiring Connections for a Power Supply Monitor, EQ21XXPS Series Power Supply and Backup Batteries