ENGLISH
.
Cod. 9828093300 00 - Vers. 04/2019 - 67
26.0 DRYER CALIBRATIONS
HOT GAS BYPASS VALVE
N.B.
These valves are already calibrated and do not require any regulation. A different dew point with respect to the rated one will generally
depend on causes not attributable to their operation.
1) Closing cap
2) Calibration screw
WORKING PRESSURES AND TEMPERATURES OF
R134a / R410a
Compressors cCSAus approved can only be equipped with R134a refrigerant gas.
INTAKE SIDE OF
REFRIGERATION COMPRESSOR
Evaporat.
Temperat.
°C (°F)
Evaporation
Pressure bar (psi)
RATED VALUES
Temperat. 20 °C
(68 °F)
1 ÷ 2
(33.8 ÷ 35.6)
R134A
2.1 ÷ 2.3
(30.4 ÷ 33.3)
R410A
7.28 ÷ 7.55
(105.6 ÷ 109.5)
26.1 DRYER FLOW DIAGRAM
1 REFRIGERATION COMPRESSOR
8 FREON FILTER
2 CAPACITOR
9 HOT GAS BYPASS VALVE
3 FAN MOTOR
10 AIR-AIR EXCHANGER
4 EVAPORATOR
11 DEW POINT THERMOMETER
5 SEPARATOR
12 FAN PRESSURE SWITCH
7 CAPILLARY TUBE
27.0 VARIABLE SPEED
The “Variable speed” version of the machine is controlled by an INVERTER.
The equipment is factory calibrated and does not require any adjustment of parameters.
The modulation pressure is set at 0.5 bar lower than the maximum pressure: depending on the air consumption, the INVERTER will adjust
the motor speed.
MODULATION PRESSURE CALIBRATION
The compressor modulation pressure is set at a fixed value of 0.5 bar less than the maximum pressure. By modifying this value (Parameter
P0), the modulation pressure value is therefore also modified.
2
1
AIR OUTLET
AIR INLET