Honeywell C7027A1049 MiniPeeper Ultraviolet Flame Sensor – Compact
The Honeywell C7027A1049 is a compact ultraviolet (UV) flame sensor designed for reliable flame detection in gas, oil, or combination burners. It is part of Honeywell’s MiniPeeper family of flame detectors, compatible with a wide range of Honeywell flame amplifiers and controls. Its compact design, durable construction, and long lead length make it ideal for both residential and commercial burner applications.
✅ Key Features
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✅ Compact MiniPeeper design for tight installation spaces
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✅ Wiring Connections: Two 8 ft (2.44 m), color-coded, NEC Class 1 leadwires rated for 221°F (105°C)
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✅ Ambient Operating Temperature: 0°F to 215°F
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✅ Compatible with Honeywell Flame Amplifiers: R7249A/B, R7849A/B, R7749B, R7259, R7290
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✅ Integral collar (internal 1/2-14 NPSM) for mounting on 1/2-inch sight pipe
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✅ Pressure rated for 5 psi when properly installed
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✅ Parallel wiring capability: Two detectors can be wired in parallel for difficult flame sighting installations
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✅ Detects ultraviolet radiation emitted by combustion flames for accurate flame supervision
📊 Specifications
| Parameter | Detail |
|---|
| Part Number |
C7027A1049 |
| Sensor Type |
Ultraviolet Flame Detector (MiniPeeper) |
| Lead Length / Wiring |
Two 8 ft (2.44 m), color-coded, NEC Class 1 leadwires, rated 221°F (105°C) |
| Operating Temperature |
0°F to 215°F |
| Mounting |
1/2" internal NPSM collar |
| Pressure Rating |
5 psi (properly installed) |
| Compatible Amplifiers |
R7249A/B, R7849A/B, R7749B, R7259, R7290 |
| Parallel Wiring |
Yes, up to two units (except C7927) |
⚠️ Common Symptoms Indicating Replacement
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Burner fails to ignite or maintain flame
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Flame supervision errors on Honeywell controls
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Visible damage or wear on the sensor tip or leads
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Intermittent flame detection or flame lockouts
❓ Frequently Asked Questions (FAQ)
Q: What is the purpose of the C7027A1049?
A: It detects ultraviolet radiation emitted by combustion flames and provides flame supervision for gas, oil, or combination burners.
Q: Which Honeywell amplifiers is this compatible with?
A: Compatible with R7249A/B, R7849A/B, R7749B, R7259, R7290, and other MiniPeeper-compatible controls.
Q: Can multiple sensors be wired in parallel?
A: Yes, two C7027A, C7035A, or C7044A detectors can be wired in parallel for difficult flame sighting installations. Note: C7927 cannot be wired in parallel.
Q: What is the lead length and wiring type?
A: Two 8 ft (2.44 m), color-coded, NEC Class 1 leadwires, rated for 221°F (105°C).
Q: What is the operating temperature range?
A: 0°F to 215°F ambient.
🛒 Shopping Tips
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Ensure your Honeywell amplifier/control is compatible with the MiniPeeper series.
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Check lead length and mounting requirements before installation.
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Inspect for visible damage or corrosion when servicing burners.
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Replace sensors at the first sign of intermittent flame detection to maintain safe burner operation.
