Panasonic WH-ADC0916G9E8 WH-UX09FE8 Service Manual

Also see for WH-ADC0309G3E5: Service manual

Contents

Panasonic WH-ADC0916G9E8 WH-UX09FE8 Service Manual Manual pdf 92 page image

9214. Protection Control (UD09FE8, UD12FE8 and UD16FE8)14.1 Protection Control for All Operations14.1.1 Time Delay Safety Control2 The compressor will not start for three minutes after stop of operation.14.1.2 30 Seconds Forced Operation3 Once the compressor starts operation, it will not stop its operation for 30 seconds.4 However, it can be stopped using control panel at indoor unit.14.1.3 Total Running Current Control4 When the outdoor running current exceeds X value, the compressor frequency will decrease.5 If the outdoor running current does not exceed X value, the compressor frequency will return to normaloperating frequency.6 If the outdoor running current continue to increase till exceed Y value, compressor will stop, and if this occurs3 times within 20 minutes, system will stop operation and OFF/ON control panel LED will blink (F16 erroroccurs).UD09FE8 UD12FE8 UD16FE8Operation Mode X (A) Y (A) X (A) Y (A) X (A) Y (A)Heating 6.21 10.60 7.35 10.60 8.53 10.60Cooling 6.21 10.60 6.51 10.60 8.43 10.60B. DC Peak Current Control4 When the current to IPM exceeds set value of 34 A, compressor will stop. Compressor will restart after threeminutes.5 If the set value exceeds again for more than 30 seconds after the compressor restarts, operation will restartafter two minutes.6 If the set value exceeds again for within 30 seconds after the compressor restarts, operation will restart afterone minute. If this condition repeats continuously for seven times, system will stop operation and OFF/ONcontrol panel LED will blink (F23 error occurs).14.1.4 Compressor Overheating Prevention Control The compressor operating frequency is regulated in accordance to compressor tank temperature as shown inbelow figures. When the compressor tank temperature exceeds 107°C, compressor will stop, and if this occurs4 times within 30 minutes, system will stop operation and OFF/ON control panel LED will blink (F20 error occurs).14.1.5 Low Frequency Protection Control 1 When the compressor continuously operates at frequency lower than 21 Hz for 240 minutes, the operationfrequency will change to 20 Hz for 2 minutes.Compressor tank temperatureCompressor = OFFCompressorFrequency ReducedCompressorFrequency MaintainFree108°C110°C112°C97°C97°C97°C