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On-Off Primary Control with PrePurge - Intermittent Pilot
Overview
Microprocessor-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
Flame Establishing Period - Pilot 4 sec or 10 sec
Flame Establishing Period - Main Intermittent
Interlocks selectable
PrePurge Determined by ST7800A Purge Timer Card
Required Components Q7800A,B Universal Wiring Subbases. R7847, R7848, R7849, R7851, R7861, or R7886 Flame Signal Amplifier. ST7800 Plug-in Purge Timer Card.
Voltage 120 Vac (+10, -15%)
Frequency 50 Hz
Frequency 60 Hz (±10%)
Delayed Main Valve No
Pilot Type intermittent
Vibration 0.5 G environment
Ambient Temperature Range (F) -40 F to +140 F
Ambient Temperature Range (C) -40 C to +60 C
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
Approvals, Underwriters Laboratories Inc Component Recognized, File No. MP268; Guide No. MCCZ.
Approvals, Canadian Standards Association Certified, File No. LR95329-3.
Approvals, Control Safety Devices Acceptable: CSD-1
Approvals, Federal Communications Commission FCC Part 15, Class B, Emissions.
Approvals, Industrial Risk Insurers IRI Acceptable
Approvals, Factory Mutual Report No. J.I.OX4A5.AF.
Used With 7800
Cost New $798 US Dollar = 400.438 British Pound
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:65/0
