R7140G,L,M BURNER CONTROL MODULES
66-1153—03 22
Fig. 18. Block diagram of field wiring for the R7140M1007, used for replacing R4140M Programmers with Pre-Ignition Interlocks.
RECTIFYING FLAME
ROD OR
INFRARED
(LEAD SULFIDE)
FLAME DETECTOR
C7027A, C7035A, OR
C7044A ULTRAVIOLET
FLAME DETECTOR
C7061, C7012A, C,
ULTRAVIOLET
FLAME DETECTOR
LOW FIRE
SWITCH
BURNER
MOTOR
MAIN FUEL
VALVE(S)
INTERMITTENT
PILOT/IGNITION
10 SECOND
INTERRUPTED
PILOT/IGNITION
IGNITION
TRANSFORMER
1ST STAGE
FUEL VALVE
2ND STAGE
FUEL VALVE
(OPTIONAL)
RUNNING
INTERLOCKS
(INCLUDING
AIRFLOW SWITCH)
PREIGNITION
INTERLOCKS
BURNER
CONTROLLER
ALARM
DAMPER
CONTROL
MASTER
SWITCH
120V, 60 HZ
POWER
SUPPLY
L1 (HOT)
L2
5 SECOND IGNITION
(EARLY SPARK
TERMINATION)
TO
L2
5
6
7

FOR DIRECT SPARK IGNITION (OIL OR GAS)

5
6
7
8
(M)
L1
L2
12
(11)
13
(D)
3
(P)
4
(13)
9
(A)
10
(X)
11
(10)
WIRING
SUBBASE
TERMINAL
STRIP (4)
LIMITS
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
USE ALL NEC CLASS 1 WIRING.
WHEN USING A 2-POSITION SPRING DAMPER MOTOR, CLIP
AND REMOVE J1 AND J2, LOCATED ON R7140 SUBBASE.
FOR DIRECT SPARK IGNITION (OIL OR GAS), CONNECT THE IGNITION
AND MAIN FUEL VALVE(S) AS SHOWN IN THE INSET.
FOR THE C7015A INFRARED (LEAD SULFIDE) FLAME DETECTOR, EITHER
LEADWIRE MAY BE CONNECTED TO THE F TERMINAL. RUN THE C7015A
LEADWIRES ALONE IN CONDUIT ALL THE WAY TO THE WIRING SUBBASE
AND GROUND THE CONDUIT AT THE SUBBASE. (REFER TO PUBLICATION
60-2306 FOR DETAILED INSTRUCTIONS.)
WHITE SHUTTER LEADWIRES ARE ONLY ON THE C7061A OR F OR
C7961 E, OR F ULTRAVIOLET FLAME DETECTORS WITH SELF-CHECKING
FEATURE; TERMINAL 17 IS NOT USED FOR OTHER DETECTORS. (REFER
TO PUBLICATION 60-2358 FOR DETAILED INSTRUCTIONS.)
REPLACEMENT R7140M. START INTERLOCK BECOMES PRE-IGNITION INTERLOCK.
1
1
2
2
3
4
18
17
16
(3)
15
(8)
14
(12)
6
5
3
L2
6
4
5
6
BLUE
BLUE
WHITE
WHITE
WHITE
YELLOW
OR
OR
M23338
7
7
NOTE: ( ) NUMBERS ON GP101 SUBBASE.
G
(S2)
F
(S1)
4