MGC SD-100 Series Photoelectric Smoke Detectors Instruction Manual

: June 12, 2024
: MGC

Table of Contents

GENERAL DESCRIPTION
TYPICAL WIRING DIAGRAMS
INSTALLING THE BASE
INSTALLING THE HEAD
MAINTENANCE
SPECIFICATIONS
WARRANTY
References
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25 Interchange way, Vaughan Ontario. L4K 5W3
Phone: 905.660.4655; Fax: 905.660.4113
Web: www.mircomgroup.com

INSTALLATION AND MAINTENANCE INSTRUCTIONS

GENERAL DESCRIPTION

Model SD-100-2WT: 2-Wire Photoelectric Smoke Detector with Heat Sensor and Remote Indicator
Model SD-100-4WT: 4-Wire Photoelectric Smoke Detector with Heat Sensor
Model SD-100-2WP: 2-Wire Photoelectric Smoke Detector with Remote Indicator
Model SD-100-4WP: 4-Wire Photoelectric Smoke Detector
All models incorporate a microprocessor with an advanced optical sensing chamber. Models SD-100-2WT and SD-100-4WT feature a restorable, fixed temperature (135°F/57.2°C) thermal detector. SD-100 Series detectors are designed to provide open area protection.

TYPICAL WIRING DIAGRAMS

FIGURE 1: Typical wiring diagram of the 2-wire multiple-station smoke detector system

MGC SD 100 Series Photoelectric Smoke Detectors -
diagram

NOTE: IF REMOTE INDICATOR IS NOT USED, REVERSING POLARITY ON DETECTOR IS PERMITTED.

FIGURE 2: Typical wiring diagram of the 4-wire multiple-station smoke detector system

MGC SD 100 Series Photoelectric Smoke Detectors - detector
system

CAUTION: DO NOT USE LOOPED WIRE UNDER TERMINALS 2 AND 5. BREAK WIRE RUN TO PROVIDE SUPERVISION OF CONNECTIONS.
MISE EN GARDE: POUR LE CONTRÔLE DES SYSTÈMES – POUR LES BORNES 2 ET 5, NE PAS UTILISER DE FIL ENROULÉ SOUS LES BORNES. COUPER LE CÂBLAGE POUR ASSURER LA SURVEILLANCE DES RACCORDEMENTS.

WARNING

TO PREVENT DETECTOR CONTAMINATION AND SUBSEQUENT WARRANTY CANCELLATION, THE SMOKE DETECTOR MUST REMAIN COVERED UNTIL AREA IS CLEAN AND DUST REE.
AVERTISSEMENT

POUR ÉVITER LA CONTAMINATION DU DÉTECTEUR ET ANNULER LA GARANTIE, LE DÉTECTEUR DE FUMÉE DOIT RESTER COUVERT TANDIS QUE L’ENDROIT EST PROPRE ET SANS CONTAMINER DES POUSSIÈRE.

INSTALLING THE BASE

Notes: The end-of-line devices shown in Figures 1 and 2 must be compatible with the control panel. The end-of-line supervisory relay must be rated for the DC power voltage used.
Open area smoke detectors are intended for mounting on a ceiling or a wall in accordance with the fire standard in your country.
There is a limit of 21 smoke detectors on one loop.

Ensure that all wires are properly identified, and fasten the wires away from the connector terminals.
If you used a jumper wire to connect the poles of terminals 2 and 5 when testing the detector loop continuity, remove the jumper wire before you install the detector head.
Mount the base of the smoke detector directly onto an electrical junction box such as an octagonal (3”, 3.5” or 4”), a round (3”), or a square (4”) box without using any type of mechanical adapter.

INSTALLING THE HEAD

Thoroughly clean the area of construction debris and dust.
Align the mark on the detector head with the short mark on the base and twist the head clockwise to secure it. The mark on the head should line up with the long mark on the base.

FIGURE 4: Attaching detector head onto base

MGC SD 100 Series Photoelectric Smoke Detectors - head

ALARM AND SMOKE SENSOR TESTING

Disengage all the alarm signal services, releasing devices, and extinguisher systems during testing.
Energize the detector head for approximately one minute.
Make sure that the LED flashes green once every 5-7 seconds.
If it is not flashing, the detector is not functioning or the wiring is faulty. Re-check the wiring or replace the detector if necessary.
Position the test magnet against the side of the detector opposite the side marked DO NOT PAINT for at least 10 seconds.
The LED should illuminate steady red.
Reset the control panel to return to normal operation.
Allow smoke from a cotton wick or a test smoke aerosol to enter the detector-sensing chamber for at least 10 seconds.
When sufficient smoke has entered the chamber, the LED illuminates steady red. If it does not, then the detector requires service.
Reset each detector and control panel before testing any additional detectors in the same zone.
Re-engage all the alarm signal services, releasing devices, and extinguisher systems immediately after testing.

HEAT SENSOR TESTING (SD-100-2WT and SD-100-2WT)

Switch on a flow of hot air at a temperature between 65°C and 80°C.
This requirement can be met by some domestic hair dryers. Check that the temperature is correct and stable.
From a distance of several inches, direct the airflow at the guard protecting the thermistor. The detector should sound its alarm within 30 seconds. FIGURE 5: Heat sensor testing

MGC SD 100 Series Photoelectric Smoke Detectors -
sensor

When the alarm sounds, immediately remove the heat source and check that the LED is illuminated red.
Reset the detector from the control panel.
If the detector fails to sound its alarm within 30 seconds, it is too insensitive. Return it to the distributor for servicing.
Check that the system is set for normal operation and notify the appropriate authorities that the testing operation is complete and the system is active again.

NOT SUITABLE FOR INSTALLATION IN AREAS WHERE AIR VELOCITIES EXCEED 300 ft./min.

MAINTENANCE

The recommended minimum requirement for detector maintenance consists of an annual cleaning of dust from the detector head by using a vacuum cleaner. All maintenance operations must comply with NFPA-72A standards.
CAUTION: DO NOT ATTEMPT DISASSEMBLY OF THE FACTORY SEALED SMOKE DETECTOR. THIS ASSEMBLY IS SEALED FOR YOUR PROTECTION AND IS NOT INTENDED TO BE OPENED FOR SERVICING BY USERS. OPENING THE DETECTOR HEAD WILL VOID THE WARRANTY.
FOR MORE INFORMATION, REFER TO THE TECHNICAL BULLETIN LT-5267 SD-100-2W/4W.

SPECIFICATIONS

Model| 214 wire| Thermal| Voltage DC| Standby Current (Max.)| Alarm Current
(Max.)| Surge Current (Max.)| Start-Up Time (Max.)| Permissible Current (Max.)| Frequency| Alarm contact| Base model
---|---|---|---|---|---|---|---|---|---|---|---
SD-100-2WP| 2| –| 12.0-28.0V| 140pA| 90mA| 200pA| 60 Seconds| 90mA| 5-7 Seconds| —| SDB-104 SDB-106-4- or
4
SD-100-2WT| 2| 57.2 °C| 12.0-28.0V| 140pA| 90mA| 200pA| 60 Seconds| 90mA| 5-7 Seconds| —| SDB-104 SDB-106-4- or
4
SD-100-4WP| 4| –| 10.5-33.0V| 140pA| 48mA| 200pA| 60 Seconds| 48mA| 5-7 Seconds| Form A| SDB-104 SDB-106-4- or
4
SD-100-4WT| 4| 57.2 °C| 10.5-33.0V| 140pA| 48mA| 200pA| 60 Seconds| 48mA| 5-7 Seconds| Form A| SDB-106-4 or
SDB-104-4

Accessories: RSR-100 Remote Sensitivity Meter for SD-100 Detectors (LT-1146)