1485 Jacobs Rd.
Deland, FL 32724
386.738.7307
P/N 53-00549-100 Rev. C 032619
www.intellitec.com
Intellitec
SERVICE MANUAL
SMART EMS
TM
OPERATION
OPTIONAL DISPLAY PANEL
In operation, when the 120 VAC and 12 VDC are applied, the system will energize the relays, one at a time.
However, the coils of all five relays are DC. The total
current is monitored. If the total should exceed the 30 Amp service limit, the system will turn off the last load that was
turned on. As it does this, it calculates the amount of current that was removed, which is the value for that load. This value
is placed in memory. The system has "learned" the amount of current that particular appliance draws. This feature
compensates for the differences in current draw over a range of line voltage and ambient temperature, by re-learning the
load each time it is turned off.
The system now waits until the total current is lower than 30 Amps by the amount in memory before it will turn that load back
on. This assures that there is sufficient current to operate the load.
There is a two minute minimum delay period before the load will be turned back on again to prevent air conditioners from
turning on with a head of pressure.
The optional display panel, can be mounted remotely and connects to the main unit with a small gauge, four wire cable.
Four Power Status LED's indicate power is applied to those loads. These LED's are on when the power is applied.
A two digit display, the Load Meter,
by all the appliances in the
coach.
The three AC
relays and two DC relays will move from the N/O to N/C position.
indicates the amount of current actually being drawn
