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 2 line VDF keyboard display module, DATA CONTROLBUS™ MODULE, remote display module, and 4-LINE LCD keyboard display module.
- Five LEDs provide sequence information.
- Interchangeable plug-in flame amplifiers.
- Optional 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 | Programming Control |
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 13 oz |
Weight (kg) | 0.8 kg |
Comments | LHL-LF&HF Proven |
Frequency | 50 Hz; 60 Hz (±10%) |
Approvals, Underwriters Laboratories Inc. | Component Recognized, File No. MP268; Guide No. MCCZ. |
Approvals, Canadian Standards Association | 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 or 15 sec |
Interlocks | Lockout |
Preignition | Yes |
PrePurge | Determined by ST7800A Purge Timer Card |
PostPurge | 15 sec |
Early Spark Termination | Yes, 5 sec |
Required Components | Q7800A,B Universal Wiring Subbases. R7847, R7848, R7849, R7851, R7852, R7861, or R7886 Flame Signal Amplifier. ST7800A Plug-in Purge Timer Card. |
AirFlow Check | User selectable |
Second Stage Pilot Valve | Interrupted |
Pilot Type | interrupted |
Vibration | 0.5 G environment |
Approvals, Control Safety Devices | Acceptable: CSD-1 |
Approvals, Swiss RE | Acceptable |
Approvals, Factory Mutual | Report No. OX4A5.AF. |
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