4098-XAD-110 Single Inlet Duct Sensor Housing – HVAC Duct Mount Smoke Detector Enclosure for Commercial Air Handling Systems
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4098-XAD-110 Single Inlet Duct Sensor Housing – HVAC Duct Mount Smoke Detector Enclosure for Commercial Air Handling Systems

$2,550.00

Specifications

The 4098-XAD-110 is a Simplex UL/ULC-listed specialty duct sensor housing with one inlet and one smoke sensor, supervised multi-relay output, and 24 VDC operation ideal for standard-width HVAC ducts requiring code-aligned duct detection.

  • Model: 4098-XAD-110 Single Inlet Duct Sensor Housing
  • Brand: Simplex
  • Inlet Configuration: Single inlet
  • Sensor Count: One smoke sensor
  • Includes: Duct probe kit
  • Certifications: UL 268, UL 268A; ULC S529
  • Power Requirement: Separate 24 VDC input
  • Output Type: Supervised output for multiple remote relays
  • Relay Control: Programmed at fire alarm control panel
  • Test Feature: Bypass mode for unobtrusive system testing
  • Typical Use: Standard-width HVAC supply/return ducts
  • Application Category: Specialty duct detection on Simplex platforms

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4098-XAD-110 Single Inlet Duct Sensor Housing – HVAC Duct Mount Smoke Detector Enclosure for Commercial Air Handling Systems
4098-XAD-110 Single Inlet Duct Sensor Housing – HVAC Duct Mount Smoke Detector Enclosure for Commercial Air Handling Systems
$2,550.00

4098-XAD-110 Single Inlet Duct Sensor Housing

The 4098-XAD-110 Single Inlet Duct Sensor Housing is a Simplex specialty duct detection housing designed around a single inlet and one smoke sensor a right-sized solution for standard HVAC ducts where one sampling point delivers representative airflow coverage. It ships with an included duct probe kit, is UL Listed to Standards 268 and 268A, and carries ULC listing to Standard S529, which makes it appropriate for projects specifying NFPA 72 and Canadian-code compliant duct detection. Operating power is separately supplied at 24 VDC, and its supervised output supports multiple remote relays, whose behavior is programmed at the fire alarm control panel including manual activation, cross-alarm triggering, or bypass for unobtrusive system testing.

Features

  • Single inlet housing with one integrated smoke sensor
  • Duct probe kit included for out-of-the-box installation
  • UL Listed to Standards 268 and 268A
  • ULC Listed to Standard S529 for Canadian-code compliance
  • Supervised output for controlling multiple remote relays
  • Panel-programmable relay behavior (manual, event-driven, or bypass)
  • Separate 24 VDC power input for reliable relay operation

Benefits

The 4098-XAD-110 addresses a practical design question on many commercial HVAC jobs: when the duct width fits within the single-sensor coverage envelope, this housing delivers UL-compliant detection with the fewest components and the cleanest wiring. The supervised multi-relay output is particularly valuable for projects where HVAC shutdown, damper closure, and auxiliary equipment control all need to respond to one duct alarm and integrators prefer to program that cascade logic centrally at the FACP rather than hard-coding it at the duct. Test bypass mode is a quiet but meaningful benefit: the integrator can validate commissioning without actually triggering building-wide relays, cutting the disruption of acceptance testing dramatically.

Why Choose QuickShipFire?

  • Availability of specialty duct housings Simplex integrators often struggle to source
  • Clear duct-probe-kit inclusion so installers aren’t hunting for separate parts
  • Guidance on whether XAD-110 single-inlet fits your duct width or if XAD-210 is required
  • Coordinated 24 VDC supply recommendations for compliant commissioning
  • Fast-turnaround handling on specialty-duct orders tied to AHJ deadlines
What's the key UL and ULC listing story on the 4098-XAD-110?
It's UL Listed to Standards 268 and 268A and ULC Listed to Standard S529, which means it's designed to meet common U.S. and Canadian code requirements for duct smoke detection.
Why is a separate 24 VDC feed required for this housing?
The supervised relay output requires its own 24 VDC source to drive the relay reliably; the communication side from the panel does not carry enough current for the relay's needs.
How is relay behavior defined for the XAD-110 after installation?
Relay control is programmed at the fire alarm control panel integrators define how the relay responds to alarms, cross-zone triggers, manual commands, or test bypass mode.
What's the advantage of the bypass-for-testing feature?
Bypass mode lets you verify duct detection and communication without firing the relay-driven HVAC shutdowns, so acceptance testing doesn't interrupt tenant operations.
Is the duct probe length in the included kit adjustable for different duct widths?
Probe kits typically include components sized for a range of standard duct widths; verify the exact kit contents against your specific duct dimensions before install.
Can this housing share a supervised relay output with other housings?
The XAD-110 drives its own supervised output; multiple housings are typically each wired to their own outputs, with panel programming coordinating cross-device behavior.
Is the 4098-XAD-110 an appropriate fit for retrofitting older Simplex duct sites?
Yes, for sites already on Simplex platforms seeking updated UL 268/268A and ULC S529 listings, the XAD-110 is a natural specialty-duct upgrade from older housings.
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