R7140G,L,M BURNER CONTROL MODULES
7
66-1153—2
Final Wiring Check
1.
Check the power supply circuit. The voltage and
frequency tolerance must match those of the R7140. A
separate power supply circuit may be required for the
R7140. Add the required disconnect means and
overload protection.
2.
Check all wiring circuits and complete the Static
Checkout, Table 8, before installing the R7140 on the
subbase.
3.
Install all electrical connectors.
4.
Restore power to the panel.
Service Notes:
Check the Q520 Wiring Subbase terminals against the typical
wiring drawings, Figures 7, 8, 12, 13, 17, or 18.
If wires are attached to terminals that are unused in the
figures,
DO NOT INSTALL THE R7140
until you have
identified the connections’ functions. Most likely the old
subbase terminals were used as tie points, so removing the
wires, capping with a wire nut, and tucking the wire down into
the subbase is all that needs to be done.
Make sure the wiring subbase of the old device is a
20-terminal Q520 (four rows of 5 terminals).
Make sure the system Controller is connected to the correct
terminal on the Q520 wiring subbase. It may be in a wire nut
tucked into the subbase. It needs to be connected to a
terminal (like terminal 4 or 16).
Make sure there is an electrical service ground wire
connection to the G terminal in the wiring subbase.
Replacing GP201 or GP301 devices:
— High Fire (or Purge Rate) Switch may be connected to
terminal D.
— Identify, remove, and connect to terminal M.
Replacing GP101 devices:
— Check wiring subbase. If D is jumpered to 8, remove
the jumper.
Replacing R4140 programmers on Carlin 1050 and 1150
burners:
— Remove jumper from 6 to 7.
— Remove jumper from L2 to 12 and wire nut the wires
together. Note: There will be no wire on terminal 12.
R4140M replacements:
Check terminal 13 of the Q520 wiring subbase.
— If nothing is on 13, install the new R7140M1007.
— If 13 is jumpered to 8, remove the jumper and install
R7140M1007.
— If 13 goes somewhere (assume a low fire switch
because the system has a damper motor), remove J1
and J2 from the back of the R7140M1007.
NOTE: J1 and J2 provide an input for the R7140M when the
system does not have a spring return damper with a
low fire switch.
Leaving J1 and J2 in place with either 13 jumpered
to 8 or with the low fire switch will cause the blower
motor to come on after the R7140M is installed and
power is supplied to the system.
Generally, the following table will apply to select the
R7140M1007 model and the status of jumpers J1
and J2.
* Check terminal 8 and 15.
If jumpered, ST7800A1031 (7 second purge).
If not jumpered, ST7800A1039 (30 second purge).
Table 6. J1/J2 Jumper Configuration for R4140M/PM720M.
Model
Purge Timer
Leave J1 & J2
Remove J1 and J2
R4140M1004/M1012
A1039
X
R4140M1020/M1038
A1047
X
R4140M1046/M1053
A1062
X
R4140M1079 (GP101)
A1062
X
R4140M1103/M1111
A1039
X
R4140M1145/M1152
A1047
X
R4140M1160/M1178
A1062
X
R4140M1186
A1047
X
R4140M1194
ST7800A1062
BC7000L1000 w/PM720M2002
ST7800A1062
X
BC7000L1000 w/PM720M2036
*
X