Discontinued – Murphy Series A900 User Manual
Page 21
Figure 4-2.3.3: A903 wiring
15
26
4
27
28
4
29
30
31
32
33
34
47
48
49
50
51
52
B+ OUT
HOURMETER
B-
MANUAL START
START
PICKUP
PICKUP
OIL PRESSURE
LO WATER TEMP.
HI WATER TEMP.
REMOTE S.D.
SPARE ALARM
35
36
37
38
39
40
41
42
43
44
45
46
ALARM SILENCE
AUDIBLE ALARM
OVERCRANK
OVERSPEED
OIL PRESSURE
HI WATER TEMP.
REMOTE SHUTDOWN
SPARE SHUTDOWN
LOSS OF SPEED
LO WATER TEMP.
SPARE ALARM
SWITCH NOT IN AUTO
53
54
55
56
57
58
SPARE
Hourmeter
Voltmeter
Remove jumper from
4 and 27 to use
manual start switch
B+
AUTO START
MODULE
LEVEL 2 ALARM
Output
Barrier
Terminal
Blocks
Input
Barrier
Terminal
Blocks
SPARE
SPARE
SPARE
SPARE
SPARE
Optional
*
Air damper closed
on a 2-cycle engine
*
1A
A B C D E F G H I J K L M N
4
5
6
7
8
9
10
11
12
13
14
15
4
16
17
18
19
20
21
22
23
24
25
+ -
B
Remote
Visual
Alarm
G
Over
Speed
Relay
C
Remote
Audible
Alarm
H
Shut
Down
Relay
D
Local
Audible
Alarm
I
Fuel
Relay
J1
J2
Q2
Q1
J1G
Red
Blk
LOW WATER LEVEL
REMOTE VISUAL
REMOTE AUDIBLE
LOCAL AUDIBLE
N.C.
N.C.
OVERSPEED RELAY
SHUTDOWN RELAY
FUEL RELAY
CRANK RELAY
AUX. CRANK DISCONNECT
N.C.
CONTROL ON
SYSTEM READY
FUSED B+
B-
Energize to Stop solenoid
Energize to Run solenoid
Breaker Shunt trip coil
To Battery +
To Battery +
Control on sink 200 mA MAX
System ready sink 200 mA MAX
Auxiliary crank
disconnect
relay
B+
B-
Crank relay
Optional Run relay and Remote signal
Local audible alarm
Remote audible alarm
Power supply
Power supply
Power supply
Remote visual alarm
Spare shutdown
Battery
Starter
Alternator
Alternator Excitor
Auxiliary Starter
Solenoid
Drawing Revision C
Air Damper
Solenoid
Fuel Pressure Switch
8A
Circuit
Breaker
Çontrol on source 200 mA MAX
3A Fuse
MDQ3
100K
D9
Q3
D8
NOTE 1: Fuel Pressure Switch and Air Damper Solenoid
are used on a 2-cycle engine
NOTE 1
NOTE 2
NOTE 2
NOTE 2
NOTE 2
NOTE 2
NOTE 2: Place Reverse Bias Diodes across inductive loads.
18
DISCONTINUED