Honeywell RM7838A Wiring Diagrams Download Page 9

SPECIFIC FOOTNOTES:

A

If the neutral wire is on terminal 1 of the 26SJ5
control, then the system is 208 Vac or 240 Vac. The
system will have to be recontrolled to 120 Vac to use
the 7800 SERIES control.

B

Install the High Fire Purge switch between Q7800
Subbase terminals 7 and 19. If no High Fire Purge
switch is used, then install a jumper between Q7800
Subbase terminals 7 and 19. Note that installing a
jumper will add 30 seconds to the purge timing.

C

Connect the hot supply wire of the alarm through one
pole of the double pole/single throw alarm silencing
switch (if used) to Q7800 Subbase terminal 3.

  

D

Connect terminal B of the S445A Start-Stop Switch
through the other pole of the double pole/single
throw alarm silencing switch (if used) to Q7800
Subbase terminal 6.

E

Connect the hot supply wire of the Pilot Fuel Valve
to Q7800 Subbase terminal 8.

F

Connect the hot supply wire of the Main Fuel Valve
to Q7800 Subbase terminal 9.

G

Connect the starting interlocks and Low Fire Purge
Switch in series between Q7800 Subbase terminal 10
and terminal D of the S445 Start-Stop Switch.

H

Connect Q7800 Subbase terminal 21 to terminal A of
the S445 Start-Stop Switch.

 J

If Dynamic Self Check has been selected for the
flame amplifier, then connect one of the shutter leads
(white) of the C7012E,F or C7076A,D Flame Detec-
tor to Q7800 Subbase terminal 22.

9

Specific instructions and footnotes for converting from

the Fireye 26SJ56000, 6052, 6152 to the RM7838A. The
footnotes will be designated with a letter in a triangle
(i.e.,  

A

 

 )  for specific footnotes or a number in a triangle

(i.e.,   

1

  ) for general footnotes from page 4.

1.

The following components will be needed in addition
to the 7800 SERIES control.
• S445A Start-Stop Switch.
• Double pole/single throw switch (if alarm

silencing is desired).

2.

Locate, label and disconnect the hot supply (120 V
supply) wire for the:
• Alarm
• Ignition Transformer
• Main Fuel Valve
• Pilot Valve

3.

Remove and discard the following:
• Alarm Silencing Switch (if used).
• Start Switch.
• Purge Timer (TA).
• Main Flame Timer (TB).
• Pilot Timer (TC).
• Purging Indicator Lamp.
• Flame OFF Indicator Lamp.
• Flame ON Indicator Lamp.
• Leadwires that are on terminals 5, 7, 8, 9, 10, 11,

12, A, C and L.

4.

Note General Footnotes.

5.

Wires that can be moved from the Fireye 26SJ5
terminals to the RM7838A terminals are shown in
the tabs.

6.

Connect the hot supply wire of the ignition trans-
former to terminal C of the S445 Start-Stop Switch.

7.

If there was an auxiliary load on terminal 6 of the
26SJ5 device, then connect this load to terminal B of
the S445 Start-Stop Switch. Note that if the combined
load of the ignition transformer and the auxiliary load
is greater than 4.5A, then an external relay will have
to be used to switch the auxiliary load. Connect the
relay coil (120 Vac) to terminal B of the S445 Start-
Stop Switch.

Summary of Contents for RM7838A

Page 1: ...inning 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...

Page 2: ...he Canadian De partment of Communications NORMAL OPERATION Pilot Flame Establishing Period Device Initiate Standby Purge PFEP Run RM7838A 10 sec 4 or 10 sec STANDBY and RUN can be an infinite time period PURGE will be determined by which ST7800A Purge Card is selected APPROVAL BODIES Underwriters Laboratories Inc listed File No MP268 Guide No MCCZ Canadian Standards Association certified LR9S329 3...

Page 3: ... 60 SEC ST7800A1062 90 SEC ST7800A1070 2 5 MIN ST7800A1088 4 MIN ST7800A1096 6 MIN ST7800A1104 9 MIN ST7800A1112 12 MIN ST7800A1120 15 MIN ST7800A1138 22 MIN ST7800A1146 30 MIN R7847A1025 0 8 Sec FFRT RECTIFICATION USE W FLAME RODS OR PHOTOCELLS R7847A1033 3 0 Sec FFRT RECTIFICATION USE W FLAME RODS PHOTOCELLS OR C7012A C R7847B1023 0 8 Sec FFRT RECTICATION USE W FLAME RODS OR PHOTOCELLS R7847B103...

Page 4: ... without external relay logic to isolate the safety critical loads test of the RM7838 4 Select proper prepurge card based on the purge timing of the control being replaced or the external purge timer 5 Select proper flame amplifier according to the cross reference table or to meet the needs of the application 6 Selectproperflamedetectorwhenconvertingfroma competitive control to Honeywell or if a d...

Page 5: ...838 CONTROL IF THE R4138 HAS AN ALARM SILENCING RELAY CONNECT THE R4138 SUBBASE TERMINAL 15 TO Q7800 TERMINAL 3 LOCATE L1 CONNECTION TO ALARM SILENCING RELAY AND WIRE NUT THIS LEADWIRTE WITH THE ALARM LEADWIRE THAT IS CONNECTED TO THE R4138 SUBBASE TERMINAL 16 IF THERE IS NO SILENCING RELAY CONNECT THE R4138 SUBBASE TERMINAL 16 TO THE Q7800 SUBBASE TERMINAL 3 AND IGNORE THE JUMPER FROM THE R4138 S...

Page 6: ...____________ DEVICE TO BE MODERNIZED O S NUMBER OF RELAY MODULE TO BE USED 12 Q7800 13 14 15 16 18 17 19 20 21 22 G L2 9 8 7 6 5 4 3 10 F G L2 L1 3 E W124 RM7838A M2669 1 2 5 6 8 3 4 7 B C GENERAL FOOTNOTES SEE PAGE 4 10 9 7 2 10 8 D F 6 G H 5 A L1 Specific Instructions on page 7 ...

Page 7: ...r to terminal C of the S445 Start Stop Switch 6 Note General Footnotes SPECIFIC FOOTNOTES A Install the High Fire Purge switch between Q7800 Subbase terminals 7 and 19 If no High Fire Purge Switch is used then install a jumper wire between Q7800 subbase terminals 7 and 14 Note installing the jumper will add 30 seconds to the purge timing B Connectthehotsupplywireofthealarmthroughone pole of the do...

Page 8: ...VICE TO BE MODERNIZED M3306 RM7838A O S NUMBER OF RELAY MODULE TO BE USED TO 12 Q7800 13 14 15 16 18 17 19 20 21 22 G L2 9 8 7 6 5 4 3 10 F 15 2 C 4 3 E F 1 2 5 3 7 8 4 A D GENERAL FOOTNOTES SEE PAGE 4 1 2 10 9 8 10 L1 B G H J 5 6 13 14 6 7 8 Specific Instructions on page 9 ...

Page 9: ...6A DFlameDetec tor to Q7800 Subbase terminal 22 9 Specific instructions and footnotes for converting from the Fireye 26SJ56000 6052 6152 to the RM7838A The footnotes will be designated with a letter in a triangle i e A for specific footnotes or a number in a triangle i e 1 for general footnotes from page 4 1 Thefollowingcomponentswillbeneededinaddition to the 7800 SERIES control S445A Start Stop S...

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Page 12: ...n U S A Home and Building Control Home and Building Control Honeywell Inc Honeywell Limited Honeywell Limitée 1985 Douglas Drive North 740 Ellesmere Road Golden Valley Minnesota 55422 Scarborough Ontario M1P 2V9 ...

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