The Honeywell C7027A1031 Flame Sensor -40-215F
Overview
The Honeywell C7027A1031 is a “Minipeeper” ultraviolet flame sensor designed for flame supervision in combustion systems. It detects UV radiation emitted by a flame and is used in burner control and safety systems. With a compact form and ½-inch mounting, it is well suited for tight or constrained installations.
Specifications
| Parameter | Value |
|---|---|
| Model | C7027A1031 |
| Sensing Type | Ultraviolet (UV) |
| Mounting | ½-inch sight pipe / integral collar |
| Temperature Range | Typically 0 °F to 215 °F |
| Maximum Pressure (sealed) | 5 psi (when properly installed) |
| Lead / Cable Length | Approx. 8 ft |
| Parallel Wiring | May support up to 2 sensors wired in parallel for improved flame path coverage |
| Application | Gas, oil, or combined burner systems requiring UV flame detection |
Features & Benefits
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Compact “Minipeeper” design allows installation in tight spaces
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UV flame detection works even under low-flame or intermittent flame conditions
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Parallel wiring option helps extend flame coverage through multiple sight paths
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Rugged construction ensures durability in combustion environments
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Integral ½-inch collar simplifies mounting to sight pipes
Applications
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Boiler and furnace flame monitoring
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Burner systems where sight line or space is limited
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Retrofit or replacement of older UV flame detectors
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Systems requiring reliable flame detection with compact sensors
Installation & Maintenance Notes
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Mount on a metallic sight pipe to maintain flame path integrity
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Avoid locating sensor near high-voltage wiring during installation
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Periodically inspect and clean the optical path to prevent signal degradation
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If flame detection reliability degrades, replace sensor rather than attempt field repairs






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