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Conversion Wiring Diagrams
for RM7895
The diagrams and instructions contained in this booklet are for converting the following models of primaries
and programmers to RM7895 microprocessor based integrated burner control.
TABLE OF CONTENTS
Honeywell R7795 ................................................................................................................................................................ 5
Honeywell R4795 ................................................................................................................................................................ 6
Honeywell RA890 ............................................................................................................................................................... 7
Honeywell R4140P .............................................................................................................................................................. 8
Honeywell R4140Y ............................................................................................................................................................. 9
Fireye UVM/TFM (all models)/M-SERIES II ............................................................................................................... 10
Fireye UVM—1 (prior to 1968) ..................................................................................................................................... 11
Fireye UVM—2 (prior to 1968) ..................................................................................................................................... 12
WARNING
Improper configuration jumper selection could cause a fire or explosion hazard that could lead to property
damage, severe injury or death.
CAUTION
1. Installer must be a trained, experienced, flame safeguard control service technician.
2. Disconnect power supply before beginning installation to prevent electrical shock and equipment damage. More
than one power supply disconnect may be involved.
3. All wiring must comply with applicable local electrical codes, ordinances, and regulations.
4. All line voltage terminal wiring shall be no. 14, 16 or 18 copper conductor TTW (60C) or THW (75C) or THHN
(90C), 600 volt insulation wire. A maximum of two conductors can be wired to each Q7800 Subbase terminal.
5. Voltage and frequency of the power supply and flame detector(s) connected to this control must agree with those
marked on the device.
6. Loads connected to the control terminals must not exceed ratings listed in Specification sheet 65-0086, or on the
RM7895 label.
7. All external timers must be listed or component recognized by authorities having jurisdiction for the specific purpose
for which they are used.
8. Perform all required checkout tests after installation is complete.
B.M. • 3-92 • ©Honeywell Inc. 1992 • Form Number 65-0125
Page

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   Related Manuals for Honeywell RM7895 Series

   Summary of Contents for Honeywell RM7895 Series

  • Page 1 7. All external timers must be listed or component recognized by authorities having jurisdiction for the specific purpose for which they are used. 8. Perform all required checkout tests after installation is complete. B.M. • 3-92 • ©Honeywell Inc. 1992 • Form Number 65-0125...
  • Page 2 IMPORTANT: found to comply with the limits for a Class B computing 1. For on-off gas-fired systems, some authorities having device of Part 15 of FCC rules which are designed to jurisdiction prohibit the wiring of any limit or operat- provide reasonable protection against such interfer- ing contacts in series between the flame safeguard ence when operated in a commercial environment.
  • Page 3 PRODUCT SELECTION MATRIX INTERMITTENT PILOT INTERRUPTED PILOT STANDARD STANDARD RM7895A1006 - 50 HZ RM7895C1004 - 50 HZ RM7895A1014 - 60 HZ RM7895C1012 - 60 HZ SELECT A RELAY DYNAMIC AIR FLOW CHECK DYNAMIC AIR FLOW CHECK MODULE RM7895B1005 - 50 HZ RM7895D1003 - 50 HZ RM7895B1013 - 60 HZ RM7895D1011 - 60 HZ...
  • Page 4 11. If a low voltage airflow switch is used on the R4795, control being replaced. Pay close attention to footnotes. The replace it with a line voltage switch such as the Honeywell symbol “ 1 “ indicates a footnote. C645.
  • Page 5 7800 SERIES CONVERSION WIRING DIAGRAM FROM__________________________ TO ____________________ R7795 RM7895 (DEVICE TO BE MODERNIZED) (O.S. NUMBER OF RELAY MODULE TO BE USED) Q7800 SELECT PROPER RELAY MODULE PER CROSS REFERRENCE TABLE. THE LINE VOLTAGE AIRFLOW SWITCH IS TO BE INSTALLED BETWEEN Q7800 SUBBASE TERMINAL 6 AND TERMINAL 7.
  • Page 6 7800 SERIES CONVERSION WIRING DIAGRAM FROM__________________________ TO ____________________ R4795 RM7895 (DEVICE TO BE MODERNIZED) (O.S. NUMBER OF RELAY MODULE TO BE USED) Q7800 SELECT PROPER RELAY MODULE PER CROSS REFERRENCE TABLE. CONNECT 120 VAC POWER TO TERMINAL 5 (L1). IF A LOW VOLTAGE AIR FLOW SWITCH IS USED ON THE R4795, REMOVE IT AND REPLACE IT WITH A LINE VOLTAGE AIR FLOW SWITCH.
  • Page 7 7800 SERIES CONVERSION WIRING DIAGRAM FROM__________________________ TO ____________________ RA890 RM7895 (DEVICE TO BE MODERNIZED) (O.S. NUMBER OF RELAY MODULE TO BE USED) Q7800 IF THE APPLICATION HAS EXTERNAL PURGE TIMING AND/OR ON AN EXTERNAL INTERRUPTED PILOT RELAY, THEN CONVERT TO RM7895. OTHERWISE CONVERT RA890 TO RM7890.
  • Page 8 7800 SERIES CONVERSION WIRING DIAGRAM FROM__________________________ R4140P TO ____________________ RM7895 (DEVICE TO BE MODERNIZED) (O.S. NUMBER OF RELAY MODULE TO BE USED) Q7800 GENERAL FOOTNOTES, SEE PAGE 4. SELECT PROPER RELAY MODULE PER CROSS REFERENCE TABLE. (L1) M6013...
  • Page 9 7800 SERIES CONVERSION WIRING DIAGRAM FROM__________________________ R4140Y TO ____________________ RM7895 (DEVICE TO BE MODERNIZED) (O.S. NUMBER OF RELAY MODULE TO BE USED) Q7800 GENERAL FOOTNOTES, SEE PAGE 4. SELECT PROPER RELAY MODULE PER CROSS REFERENCE TABLE. (L1) M6014...
  • Page 10 7800 SERIES CONVERSION WIRING DIAGRAM FIREYE UVM FROM__________________________ TO ____________________ RM7895 M - SERIES II (DEVICE TO BE MODERNIZED) (O.S. NUMBER OF RELAY MODULE TO BE USED) Q7800 SELECT PROPER RELAY MODULE PER CROSS REFERRENCE TABLE. INSTALL THE LINE VOLTAGE AIRFLOW SWITCH BETWEEN Q7800 SUBBASE TERMINALS 6 AND 7.
  • Page 11 7800 SERIES CONVERSION WIRING DIAGRAM FIREYE UVM -1 FROM__________________________ TO ____________________ (PRIOR TO 1968) RM7895 (DEVICE TO BE MODERNIZED) (O.S. NUMBER OF RELAY MODULE TO BE USED) Q7800 IF THE APPLICATION HAS EXTERNAL PURGE TIMING AND/OR ON AN EXTERNAL INTERRUPTED PILOT RELAY, THEN CONVERT TO RM7895.
  • Page 12 7800 SERIES CONVERSION WIRING DIAGRAM FIREYE UVM-2 FROM__________________________ TO ____________________ (PRIOR TO 1968) RM7895 (DEVICE TO BE MODERNIZED) (O.S. NUMBER OF RELAY MODULE TO BE USED) Q7800 SELECT PROPER RELAY MODULE PER CROSS REFERRENCE TABLE. CONNECT 120 VAC POWER TO TERMINAL 5 (L1). (L1) M6017 GENERAL FOOTNOTES, SEE PAGE 4.

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