Schulz ADS Serie Manual De Instrucciones página 64

9.10 Refrigerant pressure switches LPS – HPS – PV
As operation safety and protection of the dryer a series of pressure switches are installed in the gas circuit.
LPS : Low-pressure protection device on the suction side of the compressor, trips if the pressure drops below the pre-set value. The values
are automatically reset when the nominal conditions are restored.
Calibrated pressure :
R 134.a Stop 10.2 psig (0.7 barg) - Restart 24.7 psig (1.7 barg)
R 407 C Stop 24.7 psig (1.7 barg) - Restart 53.7 psig (3.7 barg)
HPS : This high-pressure controller device, located on the discharge side on the compressor, is activated when the pressure exceeds the
pre-set value. It features a manual-resetting button mounted on the controller itself.
Calibrated pressure :
R 134.a Stop 290 psig (20 barg) - Manual reset P<203 psi (P<14 bar)
R 407 C Stop 435 psig (30 barg) - Manual reset P<334 psi (P<23 bar)
PV :Fan control pressure switch located at the discharge side of compressor. It keeps the condensing temperature/pressure constant within
preset limits.
Calibrated pressure :
R 134.a Start 160 psig (+7.25 / -0 psi) [11 barg (+0.5 / -0 bar)]
Stop 116 psig (+0 / -7.25 psi) [8 barg (+0 / -0.5 bar)]
R 407 C Start 261 psig (+7.25 / -0 psi) [18 barg (+0.5 / -0 bar)]
Stop 203 psig (+0 / -7.25 psi) [14 barg (+0 / -0.5 bar)]
9.11 Safety thermo switch TS
To protect the operating safety and the integrity of the dryer, a thermo switch (TS) is installed on the
refrigerant gas circuit. The thermo switch sensor, in case of unusual discharge temperatures, stops the
refrigerating compressor before it is permanently damaged.
Manually reset the thermo switch only after the nominal operating conditions have been restored. Uns-
crew the relative cap (see position 1 in the figure) and press the reset button (see position 2 in the figure).
TS setting : temperature 235,4°F (113°C) (+0 / -6 °K)
9.12 Electronic instrument DMC15
sec - min
Set
DISPLAY
The DMC15 displays DewPoint temperature, controls the condenser fan activation and the timed drainer.
9.12.1 How to switch on the dryer
Power the dryer and switch it on using the ON-OFF switch (position1 paragraph 9.1).
During normal operation led is ON and the display shows the DewPoint temperature by means of two coloured areas (green and red) above
a 10 Led display :
• Green area - operating conditions ensuring an optimal DewPoint;
• Red area - DewPoint too high, the dryer is operating with high thermal load (high inlet air temperature, high ambient temperature, etc.).
Compressed air treatment may be improper.
Led shows that condensate drain solenoid valve is ON.
ON
Led shows that condenser fan is ON (ADS 10-100).
The condensate drain test is always active using the button
DMC15
ON
Led – Power ON
ON
Led - Drain ON
Led – Condenser fan ON (AMD 10-100)
Button – Setup menu access
Set
Button – Increase / Drain test
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