Intellitec SMART EMS - Page 12

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
Trouble Shooting
V. Air conditioner doesn't work.
VI. Shedding order incorrect.
VII. Remote Display out or strange characters.
A. Check thermostat wiring and settings.
B. Check air conditioner
A. Check jumper setting per Figure on page 5.
B. Check relay wiring per Figure on page 5.
Check wiring between EMS and display panel.
Pin Function Voltage
1 Power 12V
2 Data Ground
3 Ground Ground
4 Select Line Ground, 12V when pressed
Wiring 1 1 2 2 3 3 4 4
Both the EMS and Display have internal protection.
Shorts or mis-wiring should not cause the units to fail.