Estimated Lead Time: 6 – 8 Weeks.
RM7850A1027/U
Programming Control meeting European Community Timings-LHL, HF/LF Proving
Microprocessor-based integrated burner control for full modulation applications. Provides automatic burner sequencing, flame supervision, system status
indication, system or self-diagnostics, and troubleshooting.
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:30 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.
Shipping Weight: 2 Kg
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