FireClass Prescient III - Oltages for Batteries; P Owersonic Vrla Batteries

EQUIPMENT: FIRECLASS Prescient III WRITTEN BY: RKP
PUBLICATION: OMFCPRES3IN CHECKED BY: AP
ISSUE No. & DATE: 0 02/02/12
PAGE 23 of 43
Figure 6 – Power Supply Connection Details
TB2
SVR1
NTC
J9
+V
GND
B-
L
B+
L
N
Connection to
Control Board
28V
Output
Voltage
Adjust
Negative Temperature Coefficient
Thermistor Input Connector.
Fix Thermistor to battery lead directly
above battery (use cable tie provided)
240
VAC IN
L
E
N
Mains
Terminal
Block
Mounted on
the Enclosure
backbox
Incoming Mains Cable
Secured with a cable tie
Internally Wired
Mains Cable
5A Power
Supply Unit
Mounted on
Chassis
Earth Lead to Earth Bar
Earth Wire
to Chassis
Table 3 – Float Charge Voltages for Powersonic VRLA batteries
Ambient
Temperature
Charger Set voltage
Float Charge Voltage
(2x12V Batteries in series)
-10
o
C (14
o
F)
28.32 – 28.42V
27.84 – 28.44V
0
o
C (32
o
F)
27.82 – 27.92V
27.60 – 28.20V
+10
o
C (50
o
F)
27.45 – 27.55V
27.36 – 27.96V
+20
o
C (68
o
F)
27.20 – 27.30V
27.12 – 27.72V
+25
o
C (77
o
F)
27.10 – 27.20V
27.00 – 27.60V
+30
o
C (86
o
F)
27.03 – 27.13V
26.88 – 27.48V
+40
o
C (104
o
F)
26.91 – 27.01V
26.64 – 27.24V
+50
o
C (122
o
F)
26.84 – 26.94V
26.40 – 27.00V