Carel pCO1 User Manual

Modular Standard HP Chiller for Carel driver
Carel code +030221236- Rel. 1.0 dated 7 July 2003
3
1 APPLICATIONS AND FUNCTIONS PERFORMED BY THE SOFTWARE
Type of control unit
air /water chiller only
air /water chiller + freecooling
air /water total recovery
air / water chiller + heat pump
Maximum number of compressors
Max. 1 compressor with a maximum of 3 capacity controls per pCO board
Max. 2 compressor with a maximum of 1 capacity control per pCO board
Types of compressors
Semi-hermetic compressors with 1 capacity control
Semi-hermetic compressors with 3 capacity controls
Compressor duty call rotation
Rotation of all compressors with FIFO logic
Management of electronic expansion valve (EXV)
Management of following electronic valves
• Alco (EX5, EX6, EX7, EX8)
• Sporlan (SEI 0.5, SEI 1, SEI 2, SEI 3.5, SEI 6, SEI 8,5, SEH 100, SEH 175, SEH 250)
• Danfoss (ETS50, ETS100)
• Carel EVD200
• Custom valve
Type of defrosting
Overall defrosting of all pCO units connected to network: Independent/simultaneous/separate
Local defrosting of individual pCO units: separate/simultaneous
Safety devices for all refrigerating circuits
High pressure (pressure switch)
Low pressure (pressure switch)
Oil differential pressure switch
Compressor thermal cutout
Thermal cutout for condensation fan
System Safety devices
A Serious alarm input (shuts down entire unit), available on both MASTER and SLAVE units
A flow-switch input (shuts down entire unit), available on both MASTER and SLAVE units
An input for the pump thermal cutout (shuts down entire unit)
ON/OFF remote input without alarm signalling
Type of control
Proportional or proportional + integral control on the evaporator input probe
Neutral band control on the evaporator output probe (compressor enabled according to band and time)
Condensation
Condensation can be performed according to temperature or pressure
Fans managed in ON/OFF mode or with a 0/10V modulating signal
Other functions
Alarms logging
Built-in terminal management (on pCO² only)
Management of ratiometric probes for pressure control (on pCO
1
only)
EVD driver for piloting the EXV valve.
Multilingual management.
Accessories
Supervision with serial card RS485 (CARE1 or MODBUS protocol)

Carel pCO1 Specifications

General

Brand	Carel
Model	pCO1
Category	Chiller
Language	English