System Interconnects; The Ecc Current Sensor - Intellitec ELECTROINC CLIMATE CONTROL Service Manual

ELECTRONIC CLIMATE CONTROL

SYSTEM INTERCONNECTS:

12 VDC power is supplied to the Control Module via connector J1. This connector also provides the signal
connections between the Control Module and ECC Thermostat, and the Current Sensor. Connector PC1B is
part of the Current Sensor assembly. The pigtail connector, PC1A, is supplied with the system and is wired
per the following table:
J1
pin
1
2
J1
pin
3
4
5
6
7
8

THE ECC CURRENT SENSOR:

The Current Sensor is a transformer which converts the AC current passing through its
core into a corresponding voltage. A functional Current Sensor has a resistance of
approximately 40 Ohms and produces an AC voltage of 0.1 VAC per Amp of current
passing through the core (10 Amps = 1.0 VAC). The Current Sensor should be mounted
in one of the knockouts in the 120 VAC box so that the donut shaped head is inside
the box. The black wire feeding the 30 Amp main breaker in the 120 VAC panel should
pass through the hole in the Current Sensor.
INTELLITEC
PC1B FUNCTION
pin
1 CURRENT SENSOR IN
2 CURRENT SENSOR GND
PC1A FUNCTION
pin
1 KEYED - NOT CONNECTED
2 +12 VDC POWER
3 KEYED - NOT CONNECTED
4 POWER GROUND
5 IPX GND
6 IPX SIG
COLOR
WHT
WHT
COLOR
RED
BLK
BRN
YEL
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