KGL Operating Manual – UA 412 S
2019-01-14
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5.5.3 Compressor end temperature
The monitoring of the compressors is performed using the compressor end temperatures. The compressor is
switched off if the upper setpoint (parameter "VerdTempAUS") is exceeded. The compressor is switched on
again if the lower setpoint (parameter "VerdTempEIN") is undercut, see menu 6-2-7.
5.5.4 Continuous run monitoring of the regulation
Controller types SPIR290 and SPIR410
Mainly for multidecks, there are negative effects if the case goes into continuous running, e.g. in the case of
difficult environmental conditions. The consequence is icing-up of the evaporator with reduced air curtain
cooling. The continuous run monitoring automatically incorporates forcibly actuated shutdowns of the
compressors for prevention. The duration of these forcibly actuated shutdowns is set via the parameter
Dauerl.
(menu 6-3). The start of the forcibly actuated shutdown is permanently defined. If required, the forcibly
überw.
actuated shutdown always takes place 1.5 hours after the beginning of the defrost time and after expiry of
every further hour.
The following additional condition is applicable:
If the
has been undercut by the supply air actual value, the continuous run monitoring
supply air se1 K
is deactivated for one cycle (1.5 h or 1 h).
