EVCO c-pro nano CHIL - Manual (Page 83)

C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL
Pag. 83
6.2 Unit Type
With the machine in OFF status, using the PG00 parameter from the CONSTRUCTOR menu (CoSt
-> ConF), it is possible to select the unit type to be used, and, via the PG01 parameter, it is then
possible to set up the number of circuits. Based on parameter values, several defaults are loaded for
the positions of inputs and outputs. Regulation and other parameters corresponding to the various
functions must be manually modified according to user requirements.
Managed machines are listed below, together with their respective input and output configurations.
SINGLE-CIRCUIT VERSIONS (PG01=1)
6.2.1 Single-circuit air-to-air units
PG01 = 1
Single-circuit PG00 = 1
Air-to-air chiller PG00 = 2
Air-to-air chiller + heat pump
Analogue inputs
AI 1
(NTC)
Ambient air temperature Ambient air temperature
AI 2
(NTC)
Delivery air temperature Delivery air temperature
AI 3
(NTC / 4..20 mA)
Condensing pressure Condensing pressure
AI 4
(NTC / 4.20 mA / DI)
Used as DI 6 Used as DI 6
Digital inputs
DI 1 High-pressure pressure switch High-pressure pressure switch
DI 2 Thermal overload switch compressor # 1 Thermal overload switch compressor # 1
DI 3 Thermal overload switch compressor # 2 Thermal overload switch compressor # 2
DI 4 Air-flow differential pressure switch Air-flow differential pressure switch
DI 5 Recirculating fan thermal switch Recirculating fan thermal switch
DI 6 (*) Low-pressure pressure switch Low-pressure pressure switch
Digital outputs
DO 1 Recirculating fan Recirculating fan
DO 2 Compressor # 1 Compressor # 1
DO 3 Compressor # 2 Compressor # 2
DO 4 - Circuit inverter valve
DO 5 - Defrosting-support heating coil
DO 6 General alarm General alarm
Analogue outputs
AO 1
(PWM)
Condensing fan Condensing fan
AO 2
(0..10 V / 4..20 mA)
- -
AO 3
(0..10 V / 4..20 mA)
- -
By selecting these units, default values for parameters PC11=1 and PH44=1 are automatically set,
while a “0” value is set for all input/output position parameters not specified in this configuration.
(*) Digital input derived from analogue input (parameter PH44).