LCP
RG66006889-Rev.01
27
9.5 ANTIFREEZE
THERMOSTAT
The antifreeze sensor situated at the evaporator outlet detects the presence of excessively low
temperatures and stops the unit. Together with the flow switch and low pressure switch, this device
protects the evaporator from the risk of freezing as a result of faults in the water circuit.
This device is a function included in the microprocessor control.
9.6 ANTI-RECYCLE
TIMER
The function of the timer is to prevent excessively frequent compressor starts and stops.
This device is a function included in the microprocessor control.
It imposes a minimum time lapse of 300 seconds between two successive starts.
Never attempt to change the delay set in the factory: wrong settings could cause serious
damage to the unit.
9.7
OIL DIFFERENTIAL PRESSURE SWITCH
LCP units are equipped with spinning scroll compressors; these compressors do not have a lubricant
pump and therefore no oil differential pressure switch is provided.
10 ROUTINE MAINTENANCE AND CHECKS
10.1 WARNINGS
All the operations described in this chapter MUST ALWAYS BE PERFORMED BY
QUALIFIED PERSONNEL.
Before carrying out any work on the unit or accessing internal parts, make sure
you have disconnected it from the mains electricity supply.
The upper part and outlet pipe of the compressor may reach temperatures as high
as 110°C. Be especially careful when working in the surrounding area while the
unit is running.
Be especially careful when working in proximity to finned coils since the 0.11 mm-
thick aluminium fins can cause superficial injuries due to cuts.
After completing maintenance jobs, always replace the panels enclosing the units
and secure them with the fastening screws provided.
Содержание LCP Series
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