RATINGS
The ratings for the detector bases are provided in the following table; the UL Compatibility Identifier Number is listed in the CID column.
Detector Base Model or
P/N
CID Standby Voltage
(VDC)
Max. Alarm
Current (mA)
Max. Standby
Current (µA)
Typical Standby
Current (µA)
All Models
2-WIRE FE51A 10.2 - 36.8 100 70 55
2WRLT FE52A 10.2 - 36.8 100 70 55
2WRB FE53A 11.4 - 35.0 100 70 55
2WRB w/ LED FE55A 11.4 - 35.0 100 70 55
4WRB N/A 16.3 - 30.8 100 70 55
All models
with MA-001
Mechanical
Adapter Base
70-201000-001 FE01A 11.4 - 33.5 100 70 55
70-201000-002 FE02A 11.4 - 33.5 100 70 55
70-201000-003 FE03A 11.4 - 33.5 100 70 55
70-201000-005 FE05A 11.4 - 33.5 100 70 55
Note: Minimum Alarm Impedance = 195 ohms; Maximum Alarm Impedance = 630 ohms.
CONTROL UNIT SELECTION
For a complete list of UL Compatible Listed Control Panels refer Document No. 70.63 Detector-Control Panel Compatibility Listing. As per UL 268
Section 77.3.1(d) and UL 521 Section 54.3.1(d), this document also lists the maximum number of detectors that can be connected to each initiating
device circuit of the control unit. This includes any detectors that employ an integral component, such as a relay or sounder that consumes power
during an alarm condition.
DETECTOR INSTALLATION
SMOKE DETECTORS - OPEN AREA APPLICATIONS
Spacing
Smoke Detectors are UL Listed to be installed on maximum 30 foot (9.1 m) centers, typically on smooth ceilings up to 15 feet (4.6 m) high and will
operate with minimum air circulation. Resultant maximum 900 square foot (83.6 m
2
) spacing may be used as a reasonable guide for comparable
applications. Where special conditions exist (ceiling obstructions, high air exchange rates, etc.), reduced spacing must be used to achieve adequate
protection. Computer rooms and other such installations may require spacing with a maximum of 200 square feet (18.6 m
2
) due to high air exchange
rates. For additional information, consult NFPA 72 and the Fenwal Automatic Fire Detection Application Engineering Manual MC-402.
Per UL Listing, open area smoke detectors are intended for mounting on a ceiling not less than 6 inches (152 mm) from a wall, or on a wall not less
than 4 inches (102 mm) nor more than 6 inches (152 mm) from the ceiling.
The following locations should always be avoided: areas with excessive exhaust fumes, kitchen areas, near fireplaces or furnace rooms, within three
(3) feet of air supply ducts or air diffusers.
Air Velocities
Velocity Ratings of Detectors when used for Open Area protection are as follows:
Model Open Area (fpm) Model Open Area (fpm)
CPD-7051 0 - 300 PSD-7155P 0 - 4000
CPD-7051D 0 - 300 PSD-7155D 0 - 300
CPD-7054 0 - 300 PSD-7156 0 - 300
CPD-7054D 0 - 500 PSD-7157 0 - 300
PSD-7155 0 - 300 PSD-7157D 0 - 4000
Mounting
Bases are mounted directly on the electrical junction boxes (3, 3.5, and 4 inch octagonal; 3 inch round; 4 inch square) without any type of mechanical
adapter.
HEAT DETECTORS - OPEN AREA APPLICATIONS
Spacing
For UL/cUL applications, the Detectors are listed to be installed on 70 foot (21.3 m) centers, typically on smooth ceilings up to 15 feet (4.6 m) high and
will operate with minimum air circulation. Detectors are intended for mounting on a ceiling not less than 35 feet (10.7 m) from a wall or partition.
For FM applications, the listed spacing is 35 foot x 35 foot (10.7 m x 10.7 m). Where special conditions exist (ceiling obstructions, etc.), reduced
spacing must be used to achieve adequate protection.
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