SKU: RM7840L1075
Order QuantityUnit Price
EachRestricted Product
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Restricted by Honeywell, Inc., contact us for information

• Functions include automatic burner sequencing, flame supervision, system status indication, system or self-diagnostics and trouble shooting.
• Access for external electrical voltage checks.
• Application flexibility and communication interface capability.
• Five LEDs provide sequence information. Power LED blinks fault code on Lockout.
• Five function Run/Test Switch.
• Interchangeable plug-in flame 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.
• RM7800 comes with S7800A1142 Keyboard Display Module.
• Keyboard required to setup Valve Proving Feature and change post purge time.

OverviewMicroprocessor-based integrated burner control for automatically fired gas, oil, coal or combination fuel single burner applications. Provides safety, functional capability and features beyond conventional controls. With Valve Proving Feature. RM7800L com
Approvals, Federal Communications CommissionFCC Part 15, Class B, Emissions
ApplicationProgramming Control w/VPS
Flame Establishing Period - Pilot4 sec or 10 sec
Flame Establishing Period - Main10 sec or 15 sec
Approvals, Underwriters Laboratories IncComponent Recognized, File No. MP268; Guide No. MCCZ.
PrePurgeDetermined by ST7800A Purge Timer Card
PostPurgeprogrammed with S7800A1142 display
Required ComponentsQ7800A,B Universal Wiring Subbases. R7847, R7848, R7849, R7851, R7852, R7861, or R7886 Flame Signal Amplifier. ST7800A Plug-in Purge Timer Card.
Voltage120 Vac (+10, -15%)
Frequency60 Hz (±10%)
AirFlow CheckUser selectable
Second Stage Pilot Valveselectable
Pilot Typeinterrupted
Vibration0.5 G environment
Early Spark TerminationYes, 5 sec
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 10 oz
Weight (kg)0.7 kg
Approvals, Factory MutualReport No. 1V9AO.AF.
CommentsRequires S7800A1142 Display, LHL-LF&HF Proven
List Price3813.47

Product Family

Model NumberDecriptionManufacturerPriceAvail. Qty 
RM7840L1075 AUTOMATIC PROGRAMMING CONTROL Honeywell, Inc. Restricted.
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