Checking The Peripheral Devices - Siemens PolyCool CPS 40 Installation And User Manual

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5.4 Checking the peripheral devices

The peripheral devices can be tested as follows:
Temperature and pressure sensors
The two sensors are working properly if, in the regulation
mode, the displayed measured values of the evaporation
temperature TO and the suction gas temperature TOH are
realistic (reference measurements). If internal capacity
control is configured, the sensor for the medium temperature
must also be checked. For potential faults, refer to chapter 7.
Electronic injection valve
In the simulation mode, you can pre-set an opening degree
(MAN EIV) for the electronic injection valve. In the same
mode, you can check if the actual position of the value (EIV)
matches the manual set position (MAN EIV)
It should be noted that a small difference between position-
ing signal and position feedback signal is the rule, but the
difference should not significantly vary over the entire
positioning range.
CPS40 CE1U3372XX / H 74 319 0555 0 a
22.09.2006