Installation manual

Page 14
WIRE #9 Engine Battery Sense 12-24VDC: This
wire supplies the positive sense voltage for the
engine starting battery. This is an optional feature.
The engine battery voltage will only be displayed if it
is connected. It must be connected directly to the
battery. It must be protected by a 5A inline fuse
located as close to the battery as possible. Do not
install the fuse until the installation is complete.
Install fuse just prior to testing the installation.
Run Requests from HVAC Systems
There are three inputs for Run Requests from HVAC
systems.
Wire #10 Run Request HVAC #1: This input wire
must supply +12V to the controller when the HVAC
system requires the genset to run. Typically it is
supplied from a thermostat or the HVAC system
controller.
Wire #11 Run Request HVAC #2: Used with a
second HVAC unit. See above.
Wire #12 Run Request HVAC #3: Used with a third
HVAC unit. See above.
Sensing AC Shore Power is Present
The two inputs described below are used to prevent
the genset from automatically starting when AC
Shore Power is present.
Do not connect 120VAC or 240VAC line voltage
to the EC-30! It will be damaged and will not be
covered by warranty.
Wire #13 AC Present - Ground: Wires #13 and
#14 must be supplied by one of these options.
• UL Listed 120VAC to 12-16VAC
transformer.
• UL Listed 120VAC to 12VDC plug-in power
supply. - 12VDC ground side connects to
wire #13. + 12VDC positive side connects
to wire #14.
Note: AC transformer or 120VAC to 12DC converter
is not supplied.
Wire #14 AC Present + Positive: This is the +
positive input. See above.
SAFETY INPUTS
THE EC-30 REQUIRES A SAFETY INPUT TO
PREVENT THE GENSET FROM UNEXPECTED
AUTOMATIC STARTING AFTER THE VEHICLE
HAS BEEN PARKED. THE SAFETY INPUT MAY
BE SUPPLIED FROM DIFFERENT SOURCES
DEPENDING ON THE APPLICATION:
VEHICLE TYPE SAFETY INPUT
DIESEL COACH -AIR PARK BRAKE
SWITCH
-IGNITION SWITCH
GASOLINE/LP/DIESEL
-MOTOR HOMES
-VAN CONVERSION
-TRANSMISSION PARK /
NEUTRAL
- IGNITION SWITCH
-TRAILER
-5
th
WHEEL
-PICKUP CAMPER
-TRAILER BRAKE LIGHT
-CAMPER BRAKE LIGHT
NOTE:AUTOMATIC OPERATION IS NOT
ALLOWED UNLESS THE SAFETY INPUT HAS
BEEN VERIFIED.
During the Safety Input set up choose Ignition,
Brake or Park. The following definitions apply:
• Ignition: Input is connected to the vehicle
ignition system (motor homes or van
conversions).
• Brake: Brake light for all trailer and 5
th
wheel
installations, or air brake on diesel motor homes.
• Park: The park signal/neutral (transmission)
from motorized motor homes or van
conversions.
The Safety Input must change state when the
vehicle is parked. This prevents automatic
operation if the vehicle is parked in a garage or
other enclosed space. For example the vehicle
ignition switch changes state from on to off
when vehicle is parked.
Safety Inputs
The two inputs described below are used to prevent
the genset from automatically starting. The voltage
across the input must change from 0VDC to 12VDC
or from 12VDC to 0VDC when the vehicle is parked.
Wire#15 Safety Input – Negative: The negative
input to the safety circuit. See Below.
Wire #16 Safety Input +12V: The positive input to
the safety circuit. See Below.