Carrier 48/50PD05 User Manual page 50

DISPLAY POINT DESCRIPTION
NAME
Input power from MBB
RM.OC Remote occupancy switch
ENTH or Outdoor enthalpy switch, or
IAQ.S Indoor air quality switch
IAQ Indoor air quality sensor
OAQ or Outdoor air quality sensor, or
SP .RH Relative humidity sensor
Sensor Common
Actuator Common
Output power to enthalpy switch
Output power for loop power sensors
Output power to economizer actuator
PE.1 Power exhaust 1 relay
PE.2 Power exhaust 2 relay
EC.CP Commanded Economizer position
Local Equipment Network (LEN)
Carrier Comfort Network (CCN)
EC.CP & Economizer actuator position
EC.AP (digital control)
Table 20 — ECB Connections
SENSOR
LOCATION
INPUTS
control box
field installed
economizer, or
return/space
return/space
field installed
OUTPUTS
COMMUNICATION
50
TYPE OF I/O CONNECTION
PIN NUMBER
24 VAC J1, 1--- 2
switch input J4, 2
switch input J4, 4
0--- 20 mA J5, 2
0--- 20 mA J5, 5
Ground J5, 3
Ground J7, 3
24 VAC J4, 3
24 VDC J5, 1
24 VAC J7, 2
relay J8, 3
relay J8, 6
0--- 20 mA J9, 1
communication J2, 1--- 3
communication J3
MFT J7, 1
communication