UTC Fire and Security FenwalNET 8000-ML User Manual

P/N 06-237041-001 A-3 February 2011
Note: FenwalNET 8000-ML systems must comply with Table A-2 in order to satisfy UL and FM
requirements.
Note: The maximum battery capacity that can be charged per UL 864, ULC S527 and FM requirements
is 165-AH, derated by 20-percent.
A-2 EXAMPLE
An example is shown below which uses the worksheet provided in Table A-1 (entries shown in red):
Table A-2. Duration Times for Standby and Alarm
Type of System Standby Alarm
Local Fire Alarm Systems per NFPA 72 24 hours 5 minutes
Clean Agent Suppression Systems per NFPA 12, 12A, 12B, and 2001 24 hours 5 minutes
Deluge or Pre-Action Water Spray Systems per Factory Mutual 90 hours 10 minutes
Unit Description Qty
Unit Standby
Current
(A)
Unit Alarm
Current
(A)
Total
Standby
Current
Total Alarm
Current
FenwalNET 8000-ML Components:
MCB (with Keypad/Display) 1 0.158 0.300 0.158 0.300
PMU Board 1 0.070 0.090 0.070 0.090
Expansion Cards:
R-NAC 1 0.021 0.1325 0.021 0.1325
Relay 2 0.012 0.0796 0.024 0.160
SLC Devices:
PSD-7152 12 0.000405 0.000445 0.005 0.005
Solenoid-Based Devices:
897494-000 1 -1.500 - 1.5
897494-530 2 -1.500 - 3.0
Notification Appliances:* (enter below)
NS-24MC (w/110 cd) 30 - 0.174 - 5.22
ENTER TOTAL STANDBY CURRENT (Sum of column)=
0.278
ENTER TOTAL ALARM CURRENT (Sum of column)=
10.407
Calculations:
REFERRING TO TABLE A-2, ENTER STANDBY TIME REQUIRED (in hours) = 24 hours
REFERRING TO TABLE A-2, ENTER ALARM TIME REQUIRED (in minutes) = 5 mins.
CONVERT ALARM TIME REQUIRED TO HOURS (using formula below):
(minutes)/60 = 0.083
hours
CALCULATE TOTAL AMPERE HOURS (using formula below):
((TOTAL STANDBY CURRENT) x (STANDBY TIME REQUIRED in hours)) + ((TOTAL ALARM
CURRENT x ALARM TIME REQUIRED in hours)) = ______TOTAL AMPERE HOURS
(0.278 x 24) + (10.407 x 0.083) =
6.67 + 0.864 = 7.5
3 Ampere Hours
CALCULATE BATTERY CAPACITY WITH A DE-RATING FACTOR OF 20%
(using formula below):
1.2 x 7.53 AH = 9.036 AH BATTERY CAPACITY = 12-AH
Batteries
REFERRING TO TABLES A-3 AND A-4, DETERMINE NUMBER OF POWER SUPPLIES NEEDED:
NOTE: If TOTAL ALARM CURRENT > 5.4 A, then 2 or more PSUs are required.
10.407 A > 5.4 A = 2
PSUs required

UTC Fire and Security FenwalNET 8000-ML Specifications

General

Brand	UTC Fire and Security
Model	FenwalNET 8000-ML
Category	Control Unit
Language	English