#Pizza Hut Make Table operating and service manual
19
10. Sequencial functions
1) POWER ON (BOTH COMPARTMENTS NEED COOLING)
As soon as Pan and Counter Compartments start asking cooling to the system (in the
instance that the inner temperatures are higher than the set point), there is 1 minute delay
during which the cooling LED will blink. During this delay both VALVE A and VALVE B
will keep closed. Nevertheless, compressor may start up in order to pump down the system.
NOTE: Pressure in the low and high side may equalize after a long time of no
operation. Therefore suction pressure may be higher than the pressure switch cutout
limit, causing the compressor to run soon after the power cord is connected. This may
or may not happen during the first minute of operation, depending on the period of
shut off. In the below scheme pressure switch is assumed to be open, due to system
already pumped down. Further, the Main Switch is assumed to be in position 1.
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