Checking The Peripheral Devices - Siemens PolyCool Superheat CPS 40 Manuel D'installation Et D'utilisation

Note
42/136
Siemens
Building Technologies

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 positioning
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 d
2013-10-01