Honeywell RM7838A Wiring Diagrams page 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., ) for specific footnotes or a number in a triangle
A
(i.e., ) for general footnotes from page 4.
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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.
SPECIFIC FOOTNOTES:
If the neutral wire is on terminal 1 of the 26SJ5
A
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.
Install the High Fire Purge switch between Q7800
B
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.
Connect the hot supply wire of the Pilot Fuel Valve
E
to Q7800 Subbase terminal 8.
Connect the hot supply wire of the Main Fuel Valve
F
to Q7800 Subbase terminal 9.
Connect the starting interlocks and Low Fire Purge
G
Switch in series between Q7800 Subbase terminal 10
and terminal D of the S445 Start-Stop Switch.
Connect Q7800 Subbase terminal 21 to terminal A of
H
the S445 Start-Stop Switch.
If Dynamic Self Check has been selected for the
J
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.
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