Panasonic CS-DZ50VKE Service Manual

Also see for CS-DZ25VKE: Operating instructions Operating instructions

Contents

Panasonic CS-DZ50VKE Service Manual Manual pdf 90 page image

9015. Protection Control15.1 Protection Control for All Operations15.1.1 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.15.1.2 Total Running Current1 When the outdoor unit total running current (AC) exceeds X value, the frequency instructed for compressoroperation will be decreased.2 If the running current does not exceed X value for 5 seconds, the frequency instructed will be increased.3 However, if total outdoor unit running current exceeds Y value, compressor will be stopped immediately for3 minutes.Model DZ/PZ25VK DZ/PZ35VK DZ/PZ50VK UZ25VK UZ35VK UZ50VKOperation Mode X (A) Y (A) X (A) Y (A) X (A) Y (A) X (A) Y (A) X (A) Y (A) X (A) Y (A)Cooling / Soft Dry (A) 4.6915.036.8915.039.6914.664.6915.036.8915.039.6914.66Cooling / Soft Dry (B) 4.25 6.38 9.23 4.25 6.38 9.23Cooling / Soft Dry (C) 4.25 6.38 9.23 4.25 6.38 9.23Heating 4.55 5.43 9.87 4.40 5.21 9.874 The first 30 minutes of cooling operation, (A) will be applied.15.1.3 IPM (Power transistor) Prevention Control Overheating Prevention Control1 When the IPM temperature rises to 120°C, compressor operation will stop immediately.2 Compressor operation restarts after 3 minutes the temperature decreases to 110°C.3 If this condition repeats continuously 4 times within 20 minutes, timer LED will be blinking (“F96” is indicated). DC Peak Current Control1 When electric current to IPM exceeds set value of 16.0 ± 2.0A (DZ/PZ/UZ25/35VK) and 20.2 ± 2.7A(DZ/PZ/UZ50VK), the compressor will stop operate. Then, operation will restart after 3 minutes.2 If the set value is exceeded again more than 30 seconds after the compressor starts, the operation willrestart after 3 minute.3 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).(B)(A)Outdoor air temperature39°C38°C