Carrier WEATHERMASTER 48/50Z030-105 - Manual (Page 118)

118
Table 91 — Control Expansion Module (CEM) Inputs and Outputs
POINT
NAME
POINT DESCRIPTION
I/O
POINT
NAME
PLUG AND PIN
REFERENCE
SIGNAL PIN(S) PORT STATE
INPUTS
DHDISCIN
Dehumidify Switch Input DI 1 J7, 1-2 2 0 = 24vac, 1= 0vac
DMD_SW1 Demand Limit Switch 1 DI 2 J7, 3-4 4 0 = 24vac, 1= 0vac
DMD_SW2 Demand Limit Switch 2 DI 3 J7, 5-6 6 0 = 24vac, 1= 0vac
PRES Pressurization DI 4 J7, 7-8 8 0 = 24vac, 1= 0vac
EVAC Evacuation DI 5 J7, 9-10 10 0 = 24vac, 1= 0vac
PURG Smoke Purge DI 6 J7, 11-12 12 0 = 24vac, 1= 0vac
IAQIN IAQ - Discrete Input DI 7 J7, 13-14 14 0 = 24vac, 1= 0vac
OACFM Outside Air CFM AN7 J6, 1-3 2 (1 = loop power) (0-20mA input)
OARH Outside Air Rel.Humidity AN8 J6, 4-6 5 (4 = loop power) (0-20mA input)
SPRH Space Relative Humidity AN9 J6, 7-9 8 (7 = loop power) (0-20mA input)
RARH Return Air Rel.Humidity AN10 J6, 10-12 11 (10 = loop power) (0-20mA input)
DMDLMTMA 4-20ma Demand Signal AN1 J5, 1-2 1 (thermistor, ohms)
EDTRESMA EDT Reset milliampere AN2 J5, 3-4 3 (thermistor, ohms)
OAQ OAQ - PPM Return CO2 AN3 J5, 5-6 5 (thermistor, ohms)
SPRESET SP Reset milliamps AN3 J5, 5-6 5 (thermistor, ohms)
AN4 J5, 7-8 7 (thermistor, ohms)
AN5 J5, 9-10 9 (thermistor, ohms)
AN6 J5, 11-12 11 (thermistor, ohms)
CEBD430351
TEST
1
CEPL130351-01
PWR
TEST 2
J1 J2
J4 J3
J5
J6
J7
LEN
STATUS
RED LED - STATUS
GREEN LED -
LEN (LOCAL EQUIPMENT NETWORK) ADDRESS
DIP SWITCH (ALL ON)
Fig. 29 — Controls Expansion Board (CEM)