Honeywell 7800 Series EC7850A1072/U Burner Management Programming Control
- Voltage : 220 to 240 Vac (+10, -15%)
- Frequency: 60 Hz (±10%), 50 Hz
- Post Purge: 2 sec LHL-LF & HF Proven
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EC7850 Programming Control Meeting European Community Timings
The Honeywell EC7850 is a microprocessor-based burner control designed for automatic sequencing and safety monitoring of single atmospheric or fan-assisted burners on industrial and commercial heating systems.
Description
Microprocessor-based integrated burner control for full
modulation applications. Provides automatic burner sequencing,
flame supervision, system status indication, system or self diagnostics, and troubleshooting.
• Access for external electrical voltage checks.
• Application flexibility and communication interface capability.
• Five LEDs provide sequence information.
• Five function Run/Test Switch.
• Interchangeable plug-in amplifiers.
• Local or remote annunciation of operation and fault information
(optional).
• Non-volatile memory retains history files and lockout status after loss
of power.
• Compatible with existing Honeywell flame detectors.

Specifications
- ApplicationProgramming Control
- Flame Establishing Period - Main3 sec, or 5 sec, or Intermittent
- Flame Establishing Period - Pilot3 sec or 5 sec
- InterlocksLockout
- PreignitionYes
- PrePurgeDetermined by ST7800A Purge Timer Card
- Early Spark TerminationYes, 5 sec
- Required ComponentsQ7800A,B Universal Wiring Subbases. R7847, R7849, R7861, or R7886 Flame Signal Amplifier. ST7800A Plug-in Purge Timer Card.
- AirFlow CheckUser selectable
- Second Stage Pilot ValveIntermittent
- Pilot Type interrupted
- Vibration0.5 G environment
- Shipping and Storage Temperature Range-40°F to +140°F (-40°C to +60°C)
- Approximate, Dimensions5 in. wide x 5 in. high x 5 1/4 in. deep with Q7800A Subbase x 6 3/32 in. deep with Q7800B Subbase (127 mm wide x 127 mm high x 133 mm deep with Q7800A Subbase x 155 mm deep with Q7800B Subbase)
- Weight lb. (kg)1 lb 10 oz (0.7 kg)
- Approvals, Swiss REAcceptable
- Approvals, Factory MutualEC7830, EC7850, RM7830-Report No. 1V9AO.AF; RM7850-Report No. J.I. OYOA9.AF
- Approvals, Gastec/European:CE approved PIN-0063CT1466 against EN 298:2012 under GAR 2016/426.
Additional information
| Weight | 0.7 kg |
|---|---|
| Dimensions | 12.7 × 12.7 × 13.335 cm |





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