OverviewMicroprocessor-based integrated primary burner control for automatically fired gas, oil, or combination fuel single burner applications. Provides level of safety, functional capability and features beyond conventional controls. Features- Functions include automatic burner sequencing, flame supervision, system status indication, system or self diagnostics and troubleshooting.
- Subbase, amplifier, and prepurge timer are required for operation.
- Options include PC interface, keyboard display module, DATA CONTROLBUS™ MODULE, remote display module, first-out expanded annunciator, and COMBUSTION SYSTEM MANAGER™ software.
- Five LEDs provide sequence information.
- Interchangeable plug-in flame amplifiers.
- Optional local or remote annunciation of operation and fault information.
- Nonvolatile memory retains history files and sequencing status after power loss.
- Optional remote reset capability.
- Optional report generation. Selectable relight or lockout on loss of flame.
- Airflow switch check.
Product Specifications- Application
- On-Off Primary Control with Prepurge
- Dimensions (in.)
- 5 in. wide x 5 in. high x 5 1/4 in. deep with Q7800A Subbase x 6 3/32 in. deep with Q7800B Subbase
- Dimensions (mm)
- 127 mm wide x 127 mm high x 133 mm deep with Q7800A Subbase x 155 mm deep with Q7800B Subbase
- Used With
- 7800 Series Amplifiers
- Weight (lb)
- 1 lb 15 oz
- Weight (kg)
- 0.9 kg
- Frequency
- 60 Hz (±10%),50 Hz
- Voltage
- 220 to 240 Vac (+10, -15%)
- Shipping and Storage Temperature Range (F)
- -40 F to +140 F
- Shipping and Storage Temperature Range (C)
- -40 C to +60 C
- Flame Establishing Period - Pilot
- 4 sec or 10 sec
- Flame Establishing Period - Main
- 10 sec
- Interlocks
- Selectable
- PrePurge
- Determined by ST7800A Purge Timer Card
- Required Components
- Q7800A,B Universal Wiring Subbases. R7847, R7848, R7849, R7851, R7852, R7861, or R7886 Flame Signal Amplifier. ST7800A Plug-in Purge Timer Card.
- Delayed Main Valve
- Yes
- Pilot Type
- interrupted
- Vibration
- 0.5 G environment
- Approvals, Factory Mutual
- Report No. 1D0A1.AF
Product code use: EC7850A1064/U, EC7850A1072/U, EC7850A1080/U, EC7850A1122/U
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