Panasonic CS-S9PKR Service Manual

Also see for Indoor Unit CS-S12PKR: Operating instructions

Contents

Panasonic CS-S9PKR Service Manual Manual pdf 52 page image

5212. Protection Control12.1 Protection Control For All Operations12.1.1 Restart Control (Time Delay Safety Control) The Compressor will not turn on within 3 minutes from the moment operation stops, although the unit is turned onagain by pressing OFF/ON button at remote control within this period. This control is not applicable if the power supply is cut off and on again. This phenomenon is to balance the pressure inside the refrigerant cycle.12.1.2 Total Running Current Control When the outdoor unit total running current (AC) exceeds X value, the frequency instructed for compressoroperation will be decreased. If the running current does not exceed X value for 5 seconds, the frequency instructed will be increased. However, if total outdoor unit running current exceeds Y value, compressor will be stopped immediately for3 minutes.Model S9PKR S12PKR S18PKR S24PKR S28PKRCooling/Soft Dry (X)A 5.41 6.57 10.07 12.48 12.64B 5.03 6.13 8.82 12.48 12.14C 5.03 6.13 8.05 11.46 11.10Y 15.00 15.00 15.00 19.00 19.00 The first 30 minutes of cooling operation, (A) will be applied.12.1.3 IPM (Power Transistor) Prevention Control Overheating Prevention Controlo When the IPM temperature rises to 120°C, compressor operation will stop immediately.o Compressor operation restarts after 3 minutes the temperature decreases to 110°C or 95°C (S24, 28PK).o If this condition repeats continuously 4 times within 20 minutes, timer LED will be blinking (“F96” is indicated). DC Peak Current Controlo When electric current to IPM exceeds set value of 18.5A (S9, 12PK) and 30.0 ± 5.0A (S18PK, S24PK,S28PK), the compressor will stop operate. Then, operation will restart after 3 minutes.o If the set value is exceeded again more than 30 seconds after the compressor starts, the operation willrestart after 1 minute.o If the set value exceeded again within 30 seconds after the compressor starts, the operation will restart after1 minute. If this condition repeats continuously for 7 times, all indoor and outdoor relays will be cut off, timerLED will be blinking (“F99” is indicated).