On-Off Primary Ctrl with Pre/Post-Purge
Microprocessor-based integrated full-function 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.
Functions include automatic burner sequencing, flame supervision, system status indication, system or self-diagnostics and troubleshooting.
Subbase, amplifier and purge card 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.
15 second postpurge.
Five LEDs provide sequence information.
Interchangeable plug-in flame amplifiers.
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 recycle or lockout on loss of airflow or flame.
Shutter drive output.
Airflow switch check.
Delayed main valve.
Application:On-Off Primary Control with Pre and Post purge
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
Weight (lb):1 lb 15 oz
Weight (kg):0.9 kg
Comments:Includes Pre- and Post -Purge.
Frequency:50 Hz; 60 Hz (±10%)
Approvals, Underwriters Laboratories Inc.:Component Recognized, File No. MP268; Guide No. MCCZ.
Approvals, CSA:Certified, File No. LR95329-3.
Voltage:120 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
Approvals, Federal Communications Commission:FCC Part 15, Class B, Emissions.
Flame Establishing Period – Pilot:4 sec or 10 sec
Flame Establishing Period – Main:10 sec
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
Vibration:0.5 G environment
Approvals, Swiss RE:Acceptable
Approvals, Factory Mutual: Report No. OX4A5.AF.
Shipping Weight: 2 kg