2098-9649 | Simplex Duct Detector Housing Gray, 2/4-Wire for Fire/HVAC Systems

Simplex · Fire & Life Safety

2098-9649 | Simplex Duct Detector Housing Gray, 2/4-Wire for Fire/HVAC Systems

Description  The Simplex 2098-9649 is a discontinued gray duct detector housing designed for use with compatible smoke detector heads in HVAC applications. It supports both 2-wire and 4-wire configurations to monitor airflow for smoke presence in duct systems.     Technical Specifications  Condition New/Never Used Surplus Brand Simplex Category HVAC Part Number 2098-9649 Subcategory Air Duct Sensor Housing Color Gray Compatible Detector Simplex 4098-9681 smoke detector head Operation Modes 2-wire or 4-wire DC Input Voltage (2W) 15–32 VDC, polarized Input Voltage (4W) 18–32 VDC, polarized Input Voltage (AC) 120 VAC, 60 Hz with external transformer Ripple Tolerance 20% maximum Alarm Current 50 mA at 24 VDC Standby Current 24–40 µA (depending on configuration) Alarm Impedance 300 ohms (with remote alarm LED) Relay Contacts Rated 2A at 120 VAC or 28 VDC resistive Inlet Tube 3/4 in diameter, 24 in length (Model 2098-9797) Exhaust Tube 3/4 in diameter, 12 in length Weight 1.25 lbs     Information About 2098-9649 The 2098-9649 is a Simplex duct detector housing designed for use in combination with model 4098-9681 sensor heads. It provides reliable smoke detection in air handling systems by sampling air through inlet and exhaust tubes. The housing accommodates 2-wire and 4-wire DC operation and includes integrated relay contacts for alarm initiation and control. Though discontinued, the 2098-9649 remains a vital service component for existing Simplex HVAC smoke detection systems. Key Features: Duct Detector Housing: Provides a secure mount for compatible Simplex smoke detector heads. Gray Enclosure: Durable construction for HVAC duct installations. 2-Wire DC Support: Operates with 15–32 VDC input, polarized. 4-Wire DC Support: Operates with 18–32 VDC input, polarized. AC Option Available: Supports 120 VAC operation with optional transformer. Integrated Relays: Includes alarm and trouble relay contacts for control functions. Supervision Features: Self-contained relay ensures reliable supervision of detector and power supply. LED Compatibility: Supports remote alarm LED indicators when equipped. Legacy System Role: Designed for use with 4098-9681 and similar Simplex fire detection products. The 2098-9649 delivers the reliability and precision required for duct-mounted smoke detection in HVAC fire safety systems.

Brand: Simplex · Category: Fire & Life Safety

Key features

Specifications

Manufacturer part number2098-9649
ConditionNew/Never Used Surplus
BrandSimplex
CategoryHVAC
Part Number2098-9649
SubcategoryAir Duct Sensor
Housing ColorGray
Compatible DetectorSimplex 4098-9681 smoke detector head
Operation Modes2-wire or 4-wire DC
Input Voltage (2W)15–32 VDC, polarized
Input Voltage (4W)18–32 VDC, polarized
Input Voltage (AC)120 VAC, 60 Hz with external transformer
Ripple Tolerance20% maximum
Alarm Current50 mA at 24 VDC
Standby Current24–40 µA (depending on configuration)
Alarm Impedance300 ohms (with remote alarm LED)
Relay ContactsRated 2A at 120 VAC or 28 VDC resistive
Inlet Tube3/4 in diameter, 24 in length (Model 2098-9797)
Exhaust Tube3/4 in diameter, 12 in length
Weight1.25 lbs
Product typeAir Duct Sensor

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