Carrier 48/50PD05 User Manual page 48

DISPLAY
POINT DESCRIPTION
NAME
Input power from TRAN1
IGC Fan Request
FDWN Fire shutdown switch
HUM Space Humidity switch
Digital Scroll Unloader
C.ALM Scroll Compressor Alarm
CMP .A Compressor A Feedback
FIL.S Filter status switch
CS.A1 Compressor A1 Current Sensor
SPT Space temperature (T55/56)
SPTO Space temperature offset (T56)
OAT Outdoor air temperature
SAT Supply air temperature
SCT.A Saturated condenser temperature, circuit A
RAT Return air temperature
FAN.S Fan status switch
SSP .A Suction pressure, circuit A
CTLR Digital Scroll Ctrl Pwr
CCH Crankcase heat relay
OFC.1 Outdoor fan 1 relay
IDF Indoor fan VFD pwr relay
ALRM Alarm relay
HT.1 Heat Stage 2 relay
HT.2 Heat Stage 1 relay
Local Equipment Network (LEN)
Carrier Comfort Network (CCN)
Network device power
Scrolling Marquee Display (LEN)
Scrolling Marquee Display power
Modulation Board (AUX1) LEN
Optional ECB power
Table 19 — MBB Connections
SENSOR LOCATION
INPUTS
control box
gas section
supply/return/space
space
indoor fan section
control box
space
space
outdoor coil support
indoor fan housing, or
supply duct
outdoor coil, circuit A
Return air Section
indoor fan section
compressor A suction
OUTPUTS
COMMUNICATION
48
CONNECTION
TYPE OF I/O
PIN NUMBER
24 VAC J1, 1--- 3
switch input
switch input
switch input
switch input
switch input
switch input
switch input J9, 2--- 3
0--- 5vdc digital input J9, 10--- 12
10k thermistor J8, 1--- 2
10k thermistor J8, 2--- 3
10k thermistor J8, 5--- 6
10k thermistor J8, 7--- 8
5k thermistor J8, 9--- 10
10k thermistor J8, 13--- 14
switch input J8, 15--- 16
0--- 5 VDC pressure
J8, 18--- 20
transducer
relay J10, 11
relay J10, 13
relay J10, 19
relay J10, 21
relay J10, 23
relay J10, 25
relay J10, 27
communication J5, 1--- 3
communication J5, 5--- 7
24 VAC J5, 9--- 10
communication J4, 1--- 3
24 VAC J4, 5--- 6
communication J3, 1--- 3
24 VAC J2, 1--- 2
J6, 4
J6, 6
J7, 4
J7, 6
J7, 8
J7, 10