HEIL DuraPack 5000 2017 Operation Manual page 196

HEIL CNr
(CONTINUED)
System Under Voltage
The display notification shown in the figure below will only
be displayed in the event that the System Voltage is less
than 8 volts, indicating that there is voltage too low to safely
operate the Cortex Controller and Display.
Figure 106. Display Screenshot:
System Under Voltage
Issued September 2017
Compressed Natural Gas (CNG) Option
®
DuraPack 5000
Solenoid Failure
Perform this procedure for any tank solenoid in the Heil
not needed for a system without solenoids. Refer to
Solenoid Failure Detection
solenoid has failed.
A. Preparation for Defueling
Follow the instructions below and then use one of the
methods described in CNG Fuel Module Defueling
Methods
tanks with functioning solenoids.
1. Remove the relevant side access cover to access
the 1/4 turn valve of the tank on which the solenoid
has failed. This valve is the long-handled valve
located next to the manual shut-off valve.
2. Open the 1/4 turn valve for only the tank on which the
solenoid has failed. Now, that tank will be connected
to the main supply line and the gas will have a
pathway to defuel even if the solenoid failed to open.
3. Now you can defuel by using one of the methods
described in CNG Fuel Module Defueling Methods
172
4. Make sure that the display in the cab shows that all
tanks and the system are completely depressurized
before disconnecting any lines/fittings.
to help determine which
183
. Ignition will have to be left ON to defuel all
172
.
Copyright 2017, Heil Environmental
188
Printed in U.S.A.