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BEAMHK

Heating Kit for use with the Transmitter/

Receiver Unit of Reﬂected Beam Smoke Detectors

INSTALLATION AND MAINTENANCE INSTRUCTIONS

3825 Ohio Avenue, St. Charles, Illinois 60174

1-800-SENSOR2, FAX: 630-377-6495

www.systemsensor.com

GENERAL DESCRIPTION

The BEAMHK allows the transmitter/receiver of the reflected beam smoke

detectors to operate in environments prone to the formation of condensation.2

Condensation forming on the beam detector unit may result in trouble or

false alarm conditions. BEAMHK will lessen the likelihood of condensation by

maintaining the unit at a temperature that is slightly higher than the surround-

ing air. The kit requires the use of an additional power supply for intelligent

units that do not have the automatic test feature. Heaters used in conventional

units, or intelligent units with the automatic test feature, will operate from a

power supply already used to operate the beam unit.

The kit includes the following parts:

Qty. Description

1 Transmitter/Receiver Heater Assembly

MOUNTING AND WIRING INSTRUCTIONS

1. Open front cover of the transmitter/receiver unit. Refer to the installation

manual provided with the beam smoke detector for instructions.

2. Plug the transmitter/receiver heater assembly PCB into the provided slot

on the optical assembly as shown in Figure 1. Insure that the connector

is on the left side, and the resistors are facing outward as shown.

3. Plug the connector into pin-header labeled HEATER on the transmit-

ter/receiver PCB as shown in Figure 2. Pin orientation does not matter.

Please insure that the connector is installed properly on all three pins,

or the heater will not work.

4. Connect the heater power supply wires as described below. If adding

the heater kit to an existing installation, insure that the power supply

connected to the beam detector is adequately rated for the additional

power consumption of the heater.

ELECTRICAL SPECIFICATIONS

Voltage: 15 to 32 V

Current: 92mA max at 32 V1

Power Consumption:

Nominal: 1.6 W at 24 V

Maximum: 3 W at 32 V

INTELLIGENT UNITS

Power is provided through terminal block T3-1 and T3-2 as shown. For units

with the automatic test feature, this power is provided to both the automatic

test feature and the heater. See illustration below.

CONVENTIONAL UNITS

Power is provided through terminal block T1-1 and T1-2 as shown in Figure

3. Power for the beam unit is also provided at these terminals. See illustration

below.

5. Align/realign beam smoke detector. Refer to the installation manual pro-

vided with the beam smoke detector for alignment instructions.

T3 T2 T1

(+)

Intelligent Conventional

(–) (–)(+)

FRONT

INSERT

FIGURE 1:

FIGURE 3:

FIGURE 2:

FRONT

INSERT

FRONT

INSERT

HEATER

C0761-00

C0765-00

C0761-00

C0760-00

NOTES:

1. The electrical current specified is the requirement for the heater only.

The power supply must be capable of powering the heater, and other

devices that may be supplied through the same terminals.

2. The heater is intended for the prevention of condensation only. It is not

intended to increase or reduce the specified operating temperature range

of the beam smoke detector.

I56-2556-001

System Sensor warrants its enclosed heating kit to be free from defects in materials and

workmanship under normal use and service for a period of three years from date of

manufacture. System Sensor makes no other express warranty for this heating kit. No

agent, representative, dealer, or employee of the Company has the authority to increase

or alter the obligations or limitations of this Warranty. The Company’s obligation of this

Warranty shall be limited to the repair or replacement of any part of the heating kit which

is found to be defective in materials or workmanship under normal use and service

during the three year period commencing with the date of manufacture. After phoning

System Sensor’s toll free number 800-SENSOR2 (736-7672) for a Return Authorization

number, send defective units postage prepaid to: System Sensor, Repair Department, RA

#__________, 6581 Kitimat Road, #6, Mississauga, Ontario, L5N-3T5. Please include a

note describing the malfunction and suspected cause of failure. The Company shall not

be obligated to repair or replace units which are found to be defective because of damage,

unreasonable use, modifications, or alterations occurring after the date of manufacture.

In no case shall the Company be liable for any consequential or incidental damages for

breach of this or any other Warranty, expressed or implied whatsoever, even if the loss

or damage is caused by the Company’s negligence or fault. Some states do not allow the

exclusion or limitation of incidental or consequential damages, so the above limitation

or exclusion may not apply to you. This Warranty gives you specific legal rights, and you

may also have other rights which vary from state to state.

THREE-YEAR LIMITED WARRANTY

D400-87-00 1 I56-2556-001

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BEAMHKHeating Kit for use with the Transmitter/Receiver Unit of Reﬂected Beam Smoke DetectorsINSTALLATION AND MAINTENANCE INSTRUCTIONS 3825 Ohio Avenu

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