Carrier AQUASNAP 30RB060-390 - Page 6

6
Table 3 — Main Base Board Inputs and Outputs
* Controls discharge and liquid line isolation soleniods for 30RB120-190 brine units only.
DESCRIPTION INPUT/OUTPUT I/O TYPE
SCROLLING MARQUEE
POINT NAME
CONNECTION POINT
Pin Notation
Power (24 vac supply) —— —
MBB-J1, MBB-J1A,
MBB-J1B
11 24 vac
12 Ground
Local Equipment Network —— —
MBB-J9A, MBB-J9B,
MBB-J9C, MBB-J9D
+
G
-
Carrier Comfort Network
®
(CCN)
—— —
MBB-J12
+
G
-
External Chilled
Water Pump Interlock
PMPI Switch INPUTS
 GEN.I  LOCK MBB-J4-CH15A
Chilled Water Flow Switch CWFS Switch INPUTS
 GEN.I  LOCK
MBB-J5A-CH15B
15B
Demand Limit Switch #1 Demand Limit SW1 Switch INPUTS
 GEN.I  DLS1 MBB-J4-CH13
Circuit A Discharge
Pressure Transducer
DPTA
Pressure Transducer
(0-5 VDC)
PRESSURE
 PRC.A  DP.A
MBB-J7A-CH6
5V 5 vdc Ref.
S Signal
R Return
Circuit B Discharge
Pressure Transducer
DPTB
Pressure Transducer
(0-5 VDC)
PRESSURE
 PRC.B  DP.B
MBB-J7C-CH8
5V 5 vdc Ref.
S Signal
R Return
Dual Chiller
LWT Thermistor
DUAL 5k Thermistor TEMPERATURE
 UNIT  CHWS MBB-J6-CH3
Dual Set Point Input Dual Set Point Switch INPUTS
 GEN.I  DUAL MBB-J4-CH12
Entering Water Thermistor EWT 5k Thermistor TEMPERATURE
 UNIT  EWT MBB-J6-CH2
Leaving Water Thermistor LWT 5k Thermistor TEMPERATURE
 UNIT  LWT MBB-J6-CH1
Outdoor Air Thermistor OAT 5k Thermistor TEMPERATURE
 UNIT  OAT MBB-J6-CH4
Pump #1 Interlock
Pump #2 Interlock
PMP1
PMP2
Switch INPUTS
 GEN.I  PUMP
MBB-J5C-CH18
18
C
Reverse Rotation Board Reverse Rotation Board Switch INPUTS
 GEN.I  ELEC
MBB-J5A-CH16B
16B
Circuit A Suction
Pressure Transducer
SPTA
Pressure Transducer
(0-5 VDC)
PRESSURE
 PRC.A  SP.A
MBB-J7B-CH7
5V 5 vdc Ref.
S Signal
R Return
Circuit B Suction
Pressure Transducer
SPTB
Pressure Transducer
(0-5 VDC)
PRESSURE
 PR.B  SP.B
MBB-J7D-CH9
5V 5 vdc Ref.
S Signal
R Return
Unit Status Remote Contact-Off-Enable Switch INPUTS
 GEN.I  ONOF MBB-J4-CH11
Alarm Relay ALM R Relay OUTPUTS
 GEN.O  ALRM MBB-J3-CH24
Alert Relay ALT R Relay OUTPUTS
 GEN.O  ALRT MBB-J3-CH25
Cooler Heater CL-HT TRIAC OUTPUTS
 GEN.O  CO.HT MBB-J2B-CH21
Circuit A Minimum
Load Control*
MLV-A TRIAC OUTPUTS
 CIR.A  HGB.A MBB-J2C-CH22
Circuit B Minimum
Load Control*
MLV-B TRIAC OUTPUTS
 CIR.B  HGB.B MBB-J2C-CH23
Pump #1 Starter PMP1 TRIAC OUTPUTS
 GEN.O  PMP.1 MBB-J2A-CH19
Pump #2 Starter PMP2 TRIAC OUTPUTS
 GEN.O  PMP.2 MBB-J2A-CH20
Ready Relay RDY R Relay OUTPUTS
 GEN.O  REDY MBB-J3-CH26