35
EMR
3
- Truck Installations
EMR4 Truck Installation
3-Way Safety Valve for Truck LP Gas Systems
Figure 27. Example Wiring Connections For DC And AC Solenoid Valves
DC
S
olenoid
v
a
lve
Rigid cond
u
it
S
e
a
l off
J-Box
Rigid
cond
u
it
L
N
Supply
120/240 Vac
1
Interconnect Box
Power
S
ide termin
a
l
s
AC
S
olenoid
v
a
lve
Rigid cond
u
it
S
e
a
loff
AC Solenoid Wiring
DC Solenoid Wiring
Wire n
u
t
Red
Red
Bl
a
ck
Bl
a
ck
White
White
Wire n
u
t
Suppressor diode
V/R Kit P/N 846000-022
Suppressor Diode Ratings:
Output Current of 1.0 Amp,
Maximum reverse voltage 420 Volts
Suppression Diodes can only be
used with DC powered solenoids.
Interconnect Box
Power-
S
ide Termin
a
l
s
J7
J8
DH1-R1-NO
DH1-R1-COM
INPUT-PWR
INPUT-PWR
DH2-R1-NO
DH2-R1-COM
INPUT-PWR
INPUT-PWR
INPUT-PWR
GND
CHASSIS-GND
CHASSIS-GND
Note: Use either INPUT-PWR terminal
to provide power to valve
Note: Use either CHASSIS-GND terminal
to provide return for valve
Note: Use DH2-R1-NO and DH2-R1-COM
if using Display Head 2 to control valve
Note: Use DH2-R1-NO and DH2-R1-COM
if using Display Head 2 to control valve
J7
DH1-R1-NO
DH1-R1-COM
INPUT-PWR
INPUT-PWR
DH2-R1-NO
DH2-R1-COM
INPUT-PWR
INPUT-PWR
NOTICE
