EC 7850 A 1122

EC 7850 A 1122

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).
Nonvolatile memory retains history files and lockout status after loss of power.
Compatible with existing Honeywell flame detectors.

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 10 oz
Weight (kg): 0.7 kg
Comments: LHL-LF&HF Proven
Frequency: 50 Hz; 60 Hz (±10%)
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: 3 sec or 5 sec
Flame Establishing Period – Main: 3 sec, or 5 sec, or Intermittent
Interlocks: Lockout
Preignition: Yes
PrePurge: Determined by ST7800A Purge Timer Card
PostPurge: 15 sec
Required Components: Q7800A,B Universal Wiring Subbases. R7847, R7849, R7861, or R7886 Flame Signal Amplifier. ST7800A Plug-in Purge Timer Card.
AirFlow Check: User selectable
Second Stage Pilot Valve: Intermittent
Pilot Type: interrupted
Vibration: 0.5 G environment
Approvals, Swiss RE: Acceptable
Approvals, Factory Mutual: Report No. J.I. OYOA9.AF.
European Directives: Complies with Gas Appliance Directive (90/396/EEC). Low Voltage Directive (73/23/EEC). EMC Directive (89/336/EEC).
Approvals, Gastec/European: GASTEC: CE-63AP3070/1, Approved to EN298.


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