Honeywell R7140G Installation Instructions Manual page 21

2
WIRING
SUBBASE
TERMINAL
STRIP (4)
PREIGNITION
3
INTERLOCKS
(P)
BURNER
4
CONTROLLER
(13)
ALARM
9
(A)
DAMPER
10
CONTROL
(X)
11
(10)
1
L1 (HOT)
120V, 60 HZ
L2
POWER
SUPPLY
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
2
USE ALL NEC CLASS 1 WIRING.
3
WHEN USING A 2-POSITION SPRING DAMPER MOTOR, CLIP
AND REMOVE J1 AND J2, LOCATED ON R7140 SUBBASE.
4
FOR DIRECT SPARK IGNITION (OIL OR GAS), CONNECT THE IGNITION
AND MAIN FUEL VALVE(S) AS SHOWN IN THE INSET.
5
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.)
6
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.)
7 REPLACEMENT R7140M. START INTERLOCK BECOMES PRE-IGNITION INTERLOCK.
Fig. 18. Block diagram of field wiring for the R7140M1007, used for replacing R4140M Programmers with Pre-Ignition
RUNNING
INTERLOCKS
(INCLUDING
AIRFLOW SWITCH)
7
LIMITS
3
MASTER
SWITCH
R7140G,L,M BURNER CONTROL MODULES
4
FOR DIRECT SPARK IGNITION (OIL OR GAS)
TO
L2
L1 18
L2
17
6
16
12
(11) (3)
13 15
(D) (8)
14
F
(S1) (12)
BLUE
BLUE
WHITE
WHITE
L2
NOTE: ( ) NUMBERS ON GP101 SUBBASE.
Interlocks.
21
IGNITION
5
TRANSFORMER
1ST STAGE
6
FUEL VALVE
2ND STAGE
7
FUEL VALVE
(OPTIONAL)
5 SECOND IGNITION
(EARLY SPARK
TERMINATION)
10 SECOND
INTERRUPTED
PILOT/IGNITION
INTERMITTENT
PILOT/IGNITION
MAIN FUEL
VALVE(S)
BURNER
MOTOR
(M)
LOW FIRE
SWITCH
(S2)
RECTIFYING FLAME
ROD OR
INFRARED
5
(LEAD SULFIDE)
FLAME DETECTOR
OR
C7027A, C7035A, OR
WHITE
C7044A ULTRAVIOLET
FLAME DETECTOR
OR
YELLOW
C7061, C7012A, C,
ULTRAVIOLET
FLAME DETECTOR
6
5
4
6
7
8
G
M23338
66-1153—2