Carel pCO Series, Application Program, Page: 36 / 36

Carel srl: pCO Stage Controller
page 35
Chiller unit consisting of:
•
2 compressors
•
2 temperature active probes:
•
2 stages of voltage control for comp.
(chiller water input/output)
•
setpoint regulation from analog input
ID11R ID11 ID12R ID12
J21
G G0
J17
NO11 C11 NO10 C10
J22
NO9 C9 NO8 C8 NC7 C7
J24
NO6 C6
NO12 C12 NO5 C5
J6
NO4 C4 NO3 C3 NO2 C2 NO1 C1
J5
ID1 ID2 ID3 ID4
J4
ID5 IDCM1 ID6 ID7 ID8 ID9
J3
ID10 IDCM2
B1 AVSS B2 B3
J2
AVSS B4 B5 AVSS B6
BCP1
24V~
BCP2
220V~
FLX
AF
24V~
CMP2
CMP1
AL
F
N
F
N
K
K
P1C2
P1C1
PST
P2C1
P2C2
M
OUT
+V
M
OUT
+V
J1
+24V
TAP TAP
POWER SUPPLY
ANALOG INPUTS
DIGITAL OUTPUTS
DIGITAL INPUTS
INPUTS OUTPUTS
AF antifreeze lock AL general alarm
BCP compressor lock device CINV compressor 1 / valve inverter
FLX flow switch CMP compressor
PST potentiometer for setpoint regulation P1C first stage of voltage control
TAP temperature active probes (IN/OUT) P2C second stage of voltage control
F phase N neuter
Note: Fans must be electromechanically controlled by means of a contact by the contactor of the relative
compressor, or they must be controlled through an external pressure switch.
APPENDIX D: MATERIALS AND CODES
pCO kit Universal Inserter:
PCOKITSTG0
The kit includes:
Interface 8 screw fixed analog input connectors
PCOB000B21
Terminal pCO 6 digit LED
PCOT01SL60
Telephone connector 1.5m long
S90CONN000
Clock board
CLK0000000
EPROM with programme
EPSTDIIU0A
Optional:
Serial board
PCOSER0000
Serial board
PCOSER4850
Carel reserves the right to modify its products without prior notice.