MIX-5251APA - Smoke detector Mircom - Free user manual and instructions
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| Type of product | Smoke detector |
| Brand | Mircom |
| Model | MIX-5251APA |
| Detection principle | Photoelectric |
| Power supply | 24 VDC (from fire alarm panel) |
| Dimensions (diameter) | 4.0 in (102 mm) |
| Height | 1.8 in (46 mm) |
| Weight | 0.3 lb (136 g) |
| Operating temperature | 32°F to 120°F (0°C to 49°C) |
| Humidity range | 10% to 95% non-condensing |
| Alarm output | Built-in piezoelectric sounder (≥85 dB at 10 ft) |
| LED indicator | Red LED blinks every 10 seconds for standby; steady on alarm |
| Compatibility | Compatible with Mircom MIX series fire alarm control panels |
| Mounting | Surface mount on standard electrical box (4 in octagon or square) |
| Wiring | 2-wire or 4-wire (model dependent) |
| Maintenance | Vacuum clean with soft brush at least once a year |
| Cleaning | Do not use solvents or water; use dry cloth |
| Safety certifications | UL 268 listed, CSFM approved |
| Warranty | 5 years limited |
| Replacement interval | Replace every 10 years from date of manufacture |
Frequently Asked Questions - MIX-5251APA Mircom
What voltage does the Mircom MIX-5251APA smoke detector require?
The detector operates on 24 VDC power supplied by a compatible Mircom fire alarm panel.
How often should I test the detector?
Test the detector at least once a month using the built-in test button. For full system testing, refer to the panel instructions.
Does the MIX-5251APA have a hush or silence feature?
Yes, the detector supports a temporary silence feature (hush) that can be activated from the panel or via a remote command, reducing nuisance alarms.
Can I clean the smoke detector myself?
Yes, you can gently vacuum the exterior vents with a soft brush attachment. Do not use water, solvents, or compressed air inside the detector.
What does the red LED blinking mean on the MIX-5251APA?
A slow blink every 10 seconds indicates normal standby operation. A steady red LED indicates an alarm condition.
How do I replace the detector?
Twist the detector counter-clockwise to remove from the base, disconnect the wiring, and install a new detector in the reverse order.
Is the MIX-5251APA compatible with third-party fire alarm panels?
It is designed for Mircom MIX series panels. Compatibility with other panels should be verified by a qualified technician.
What is the expected lifespan of the detector?
The detector should be replaced every 10 years from the date of manufacture, as sensor sensitivity degrades over time.
Can the detector be used in outdoor or high-humidity areas?
It is rated for indoor use only and humidity up to 95% non-condensing. Avoid installation in bathrooms or outdoors.
What should I do if the detector goes off without smoke (false alarm)?
First, press the test/silence button if available. Then check for sources like steam, dust, or cooking vapors. Clean the detector and ensure proper ventilation.
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USER MANUAL MIX-5251APA Mircom
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Product information
Brand : Mircom
Model : MIX-5251APA
Category : Smoke detector