39
FIGURE 7.
WIRING ARRANGEMENT FOR PILOT IGNITED BURNERS AND PROVISION FOR MAIN FLAME
STABILIZATION USING MEP236 SERIES PROGRAMMERS
FIGURE 8.
WIRING ARANGEMENT FOR DIRECT SPARK IGNITED BURNERS, TWO STAGE OPERATION
USING MEP100 AND MEP200 SERIES PROGRAMMERS
PV
MV
S1
7
3
5
4
1
A
S2
INTERMITTENT
MAIN VALVE
BLOWER MOTOR
ALARM
8
120VAC
50/60Hz
T
P
FLAME AMPLIFIER
SPARK
K1
KF-1
PILOT VALVE
IGNITION
*
H
2
FLAME
SCANNER
OR
CONTACTOR
OPERATING
CONTROLS
KB
KA
AIR FLOW
INTERLOCK
FLAME
ROD
ONLY
KL
(WATCHDOG)
F1
6
MV
MV
S1
7
3
5
4
1
A
S2
PRIMARY
SECONDARY
BLOWER MOTER
ALARM
8
120VAC
50/60Hz
T
P
FLAME AMPLIFIER
SPARK
KF-2
KF-1
MAIN FUEL VALVE
IGNITION
H
N
2
FLAME
SCANNER
MAIN FUEL VALVE
(IF USED)
OR
CONTACTOR
KA
KB
OPERATING
CONTROL
AIR FLOW
INTERLOCK
*
For intermittent ignition, connect to terminal 3
*
FLAME
ROD
ONLY
KL
(WATCHDOG)
F1
6