Pego ECP200 Expert d7.5, Руководство по эксплуатации и обслуживанию

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ECP200 BASE 2/4
Page 19
USE AND MAINTENANCE MANUAL
Rev. 01-09
HOT GAS DEFROSTING
Set parameter d1 =1 to defrost in cycle inversion mode.
The compressor relay and defrost relay are activated throughout the defrost phase.
To ensure proper control of the system the installer must use the defrost output: this must
allow opening of the cycle inversion solenoid valve and closure of the liquid solenoid valve.
For capillary systems (without thermostat valve) it is only necessary to control the cycle
inversion solenoid valve via the defrost relay control.
PUMP DOWN FUNCTION
Pump down function is activated when parameter AU=4 (only for version with AUX/Alarm
relay).
Connect pump down pressostat on the digital input 1-3. The compressor is directly
controlled by pressostat.
Connect evaporator solenoid valve on the AUX relay. The solenoid is controlled directly by
thermostat.
PASSWORD FUNCTION
When parameter PA is setting with value different to 0 the protection function is activated.
See parameter P1 for the different protection.
When PA is setting the protection start after two minutes of inactivity. On display appear
000. With up/down modify the number, with set key confirm it.
Use universal number 100 if you don’t remember the password.
CHAP. 5 - Parameter programming
5.14
5.15
5.16