Enovation Controls Murphy EMS PRO LITE, Installation And Operation Manual

Page: 49 / 63

Section 40 00-02-0787
2015-03-23
~ 41 ~
General Information
LCD Contrast Adjustment on Startup
If the front display is not viewable upon power up, the contrast setting
may be incorrectly adjusted. To correct this, follow the steps below:
1. Remove power on the unit.
2.
Hold in the “Hare” button and apply power.
3. Continue to hold the “Hare” button for at least 2 seconds after
power up, and then release it.
4. Look for a counting number in the mid to lower portion of the
display. It may take up to 30 seconds for this number to become
visible.
5. When the number becomes visible to an acceptable contrast
level press the “Hare” button again to store the new setting.
General Wiring Precautions
There are steps that can be taken during initial installation that can
increase the life of the unit. These steps may take a few extra minutes to
do at the time of installation; but they can save time and expense in the
future. Enovation Controls strongly recommends taking these
precautionary actions.
Diodes
Place suppression diodes across all inductive loads. These loads
typically include pilot relays, solenoid valves, starter solenoids, etc. This
helps increase contact life and eliminates a source of electrical
interference.
Wire power leads directly to battery post.
This helps minimize noise generated from battery chargers and
alternators, and voltage drops during cranking.
Pilot excessive loads
Many of the outputs on the EMS PRO LITE Controller are rated for low
current, control type loads. Do not run high current loads directly to the
controller.