eFlowNBV - Power Supply/Chargers
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Installation Instructions:
Wiring methods shall be in accordance with the National Electrical Code/NFPA 70/NFPA 72/ANSI, the Canadian
Electrical Code and with all local codes and authorities having jurisdiction . Product is intended for indoor use only .
1 . Mount the eFlowNBV power supply/charger in desired location/enclosure (mounting hardware included) .
Use metal standoffs for the bottom mounting holes to provide sufficient grounding for the board .
2 . Set desired DC output voltage by setting SW1 to the appropriate position on the power supply board
(Fig. 1i, pg. 5) .
3 . Connect unswitched AC power (220VAC, 50/60Hz) to terminals marked [L, G, N] (Fig. 1a, pg. 5) .
Use 14 AWG or larger for all power connections . Secure green wire lead to earth ground .
Keep power-limited wiring separate from non power-limited wiring (220VAC, 50/60Hz Input,
DC Output (refer to Specifications chart pg. 3), Battery Wires).
Minimum 0.25” spacing must be provided.
CAUTION: Do not touch exposed metal parts.
Shut branch circuit power before installing or servicing equipment.
There are no user serviceable parts inside. Refer installation and servicing to qualified service personnel.
4 . Measure output voltage before connecting devices . This helps avoiding potential damage .
5 . Connect devices to be powered to terminals marked [– DC +] (Fig. 1h, pg. 5) .
For auxiliary device connection this output will not be affected by Low Power Disconnect or Fire Alarm
Interface . Connect device to terminals marked [+ AUX –] (Fig. 1f, pg. 5) .
6 . For Access Control applications batteries are optional . When batteries are not used, a loss of AC will result
in the loss of output voltage . When the use of stand-by batteries is desired, they must be lead acid or gel type .
Connect battery to terminals marked [– BAT +] (Fig. 1g, pg. 5) . Use two (2) 12VDC batteries connected in
series for 24VDC operation (battery leads included) . Use batteries - Casil CL1270 (12V/7AH), CL12120
(12V/12AH), CL12400 (12V/40AH), CL12650 (12V/65AH) batteries or UL recognized BAZR2 batteries of
an appropriate rating .
Note: Separate enclosure must be used for housing 40AH or 65AH batteries .
7 . Connect appropriate signaling notification devices to AC FAIL & BAT FAIL (Fig. 1b, pg. 5) supervisory
relay outputs .
8 . To delay AC reporting for 2 hrs ., set SW2 to appropriate DIP switch position [AC Delay] (Fig. 1c, pg. 5) .
9 . To enable or disable Low Output Power Shutdown set SW2 to appropriate DIP switch position [Shutdown]
(Fig. 1c, pg. 5) .
10 . A short or NO or NC input triggers FACP [Trigger EOL Shutdown] (Fig. 1d, pg. 5) .
11 . Place a jumper for non-latching FACP . A momentary short on these terminals resets FACP latching
[Trigger EOL Shutdown] (Fig. 1e, pg. 5) .
Fig. 1 - eFlowNBV configuration
L
G
N
NC C NO NC C NO
BAT FAIL
AC FAIL
---
DC
+
AC
AC1
DC
---
BAT
+
+ AUX –
TRIGGER EOL
SUPERVISED
Input
Fuse
Battery Fuse
NO GND
RESET
OFF
---
24
V
ON
---
12
V
enable
disable
1 min.
2 hr.
AC DELAY SHUTDOWN
O
N
1a
1b
1g
1h
1e
1f
1d
1c
1i
ON
