Veeder-Root EMR4 Application Guide

32
EMR
3
- Truck Installations
EMR4 Truck Installation 3-Way Safety Valve for Truck LP Gas Systems
3. Using the wire nuts, connect the stripped wires from the IB box to the 3-way valve wires (see Figure 24).
There is no polarity to the 3-way valve’s wiring. Seal the wire nuts with epoxy sealant using one bag for both
wire nut connections and place bag in junction box (see Figure 24).
Epoxy sealant is irritating to eyes, respiratory system, and skin. Can cause allergic skin
reaction. Contains: epoxy resin and cycloaliphatic epoxycarboxylate. Precautions: Wear
suitable protective clothing, gloves, eye, and face protection. Use only in well ventilated
areas. Wash thoroughly before eating, drinking, or smoking.
Figure 24. Connecting 3-Way Valve To Neptune Meter - Truck LP Gas Installations
4. Tighten the cable bushing nuts on the cord grip to ensure a watertight seal at the cable’s entry.
5. Remove the protective closures from the 3-way valve ports.
Neptune meters:
Connect a hose from line pressure to port 3 (normally open port) of the 3-way valve (see Figure 24). On some
systems, line pressure is available at an opening in the vapor eliminator housing. Connect another hose from
the 3-way valve’s port 1 (normally closed port) to the air eliminator. Connect a third hose from the 3-way
valve’s port 2 (common port) to the differential valve.
L.C./TCS Meters:
Connect a hose from the air eliminator to port 3 (normally open port) of the 3-way valve (see Figure 25). Con-
nect another hose from the 3-way valve’s port 1 (normally closed port) to the strainer cover. Connect a third
hose from the 3-way valve’s port 2 (common port) to the differential valve.
CAUTION
Rigid Metal
Junction Box
Shrink wrapped diode
Shielded 2-Wire Cable
V-R PN 848100-250
Cord Grip
V-R PN 331028-001
Port 1
(N.C.)
Port 3
(N.O.)
Port 2
(COM)
Hose Connections
are 1/4'' NPT
Connect to Line
Pressure
Connect to
Differential
Valve
12 Vdc 10 Watts
3-Way Solenoid Valve
Connect to
Air Eliminator
Connect wires
in IB unit
1/2'' NPT
Nipple or Conduit
758-23.eps
Black
White (+)
To
3-Way
valve
To
IB unit
Red
Red
Wire nuts
Instructions:
NOTE: When temperature is below 50°F (10°C), keep
resin in a warm place prior to mixing (e.g., in an inside
pocket next to body).
1. Attach red wires from 3-way valve to black and white
(+) wire from IB unit with wire nuts as shown in A.
Connect diode white wire to red/white (+) pair.
Connect diode black wire to red/black pair.
2. Open epoxy package, and remove resin pak.
3. Holding resin pak as shown in B, bend pak along long
length.
4. As shown in C, firmly squ
eeze the RED SIDE of the
resin, forcing it through the center seal and into
BLACK SIDE.
5. Mix thoroughly to a uniform color by squeezing
contents back and forth 25-30 times.
6. Squeeze mixed, warm resin into one end of bag and
cutoff other end.
7. Slowly insert wiring connections into sealing pack until
they fit snugly against the opposite end.
8. Twist open end of bag and use tie wrap to close it off,
or wrap open end of bag with vinyl electrica
l tape (not
included) and position the taped end up until the resin
jells.
9. Place epoxy pack into junction box and screw on
cover as shown in D.
C
A
D
B
Diode
(+)

Veeder-Root EMR4 Specifications

General

Brand	Veeder-Root
Model	EMR4
Category	Measuring Instruments
Language	English