description the CPD-7051 dual chamber ionization smoke detector senses both visible and invisible products of combustion and is designed for 2-wire and 4-wire system operation. the 360 o smoke entry characteristic permits maximum smoke response from any direction. to assure that the detector is functioning, an led pulses approximately every 4 seconds to allow for visual supervision of the detector. under alarm condition, the led lights constantly at full brilliance. an optional base is available to provide a remote led function. a unique gated output circuit design provides improved stability and transient suppression. special signal processing techniques verify the presence of smoke before the detector will alarm. installation of the detector is easy and quick because of non-polarized connections. the detector head is fixed to the base by a twist-lock action. both functional and sensitivity testing of the device may be accomplished by means of a test magnet. this simulates the effect of smoke (approximately 1.3 % per foot obscuration) entering the chamber. in addition, the actual sensitivity of the detector may be measured in direct readout of percent per foot obscuration with a sensitivity tester and standard voltmeter without the necessity of removing the detector. an insect screen protecting the chamber is used to avoid potential nuisance alarms. CPD-7051 ionization detectors may be inter-changed with psd-7155 or psd-7156 photoelectric detectors. optional bases are available for remote test, indication, 4-wire operation and/or control functions. see table 1. in addition, an ma-001 adapter is available to enable the CPD-7051 to mount in existing cpd series bases. approvals ul (std 268) s 1913 factory mutual 0w3a2.ay c.s.f.m. 7271-1076:115 new york city mea 346-92-e features ? high air flow dual chamber ? flashing led for visual supervision ? remote and local functional test capability ? in-place sensitivity measurement in percent per foot obscuration ? two and four-wire low current design ? non-polarized ? surface mount technology ? high altitude operation ? interchangeable bases CPD-7051 ionization smoke detector gamewell-fci 12 clintonville road, northford, ct 06472 - tel: (203) 484-7161 - fax: (203) 484-7118 www.gamewell-fci.com technical specifications nominal sensitivity 1.3 %/ft. standby voltage 10.2 to 36.8 vdc (24 vdc nominal) standby current 45 ua. (typical) 100 ua. peak @ 24 vdc operating temperature 32 o to 100 o f(0 o to 49 o c) humidity 0-93% relative humidity (non-condensing) air velocity 1,000 feet per minute, gusts to 2,000 fpm per ul268 altitude up to 7,500 feet area of coverage 30 ft. centers (900 sq. ft. max.) (smooth ceilings) radioactive source 0.7 microcuries americium 241 (sealed) 9020-0303 rev. h 1 of 2
installation installation is simple because of the non-polarized connection. the detector mounts to the base by a twist-to-lock action. a removable locking tab secures the head to the base to provide a degree of vandal resistance. units mount directly on a 3-inch round box, 3, 3.5 or 4-inch octagonal box, and 4-inch square box. no adapters required. note: the number of two-wire smoke detectors which can be accommodated per zone varies with the different control panels. consult the control panel instruction manual to determine the capacity. refer to n.f.p.a. 72, chapter 5-3 ?smoke sensing fire detectors? for spacing, location of detectors and other guidelines. maintenance cleaning programs should be adapted to the individual environment in conformance with nfpa standard 72. we recommend, at the least, an annual cleaning of dust from the detector head by using the suction from a vacuum cleaner. refer to the installation instructions for the complete procedure. 2of2 9020-0303 rev. h dimensional data table i detector base options model compatibility description identifier 2-wire fe51a connects to 2-wire detection circuit via screw terminals. 2wrlt fe52a as above except has output for remote test and led indicator. 2wrb fe55a connects to 2-wire detection circuit via wire-leads. has remote test feature, led indicator and spdt auxiliary relay rated 1 amp. @ 30 vdc. minimum alarm current: .019 amp. (maximum of 1 per zone) 4wrb n/a connects to 4-wire detection circuit via wire-leads. equipped with spdt auxiliary relay rated 2 amp. @ 30 vdc. minimum alarm current .015 amp. specifications are provided for information only, are not intended to be used for installation purposes, and are believed to be accurate. however, no responsibility is assumed by gamewll-fci for their use. specifications subject to change without notice. ? 2006 all rights reserved. table ii ordering information model compatibility description identifier CPD-7051 i51fe1 ionization smoke detector. ma-001 adapter to allow mounting to existing cpd series bases. 2wrm relay component of 2wrb. 4wrm relay component of 4wrb 2040-24 end of line supervisory relay, 24 vdc. rai-2 remote alarm indicator. rcm-500 remote alarm indicator /key test switch. warning: to prevent detector contamination during construction, smoke detectors must be protected from dust and contamination until the area is clean and dust free. see nfpa 72 caution: do not attempt disassembly of the factory sealed smoke detector. this assembly is sealed for your protection and is not to be opened for servicing. opening of the detector will void the warranty.
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