Panasonic WH-MDC09C3E8 Service Manual

Also see for WH-MDC09C3E8: Design handbook Installation manual Installation manual Operating instructions Operating instructions

Contents

Panasonic WH-MDC09C3E8 Service Manual Manual pdf 72 page image

7213. Protection Control13.1 Protection Control for All Operations13.1.1 Time Delay Safety Control1 The compressor will not start for three minutes after stop of operation.13.1.2 30 Seconds Forced Operation1 Once the compressor starts operation, it will not stop its operation for 30 seconds.2 However, it can be stopped using remote control.13.1.3 Total Running Current Control1 When the Mono bloc unit running current exceeds X value, the compressor frequency will decrease.2 If the Mono bloc unit running current does not exceed X value, the compressor frequency will return tonormal operating frequency.3 If the Mono bloc unit running current continue to increase till exceed Y value, compressor will stop, and if thisoccurs 3 times within 20 minutes, system will stop operation and OFF/ON remote control LED will blink (F16error occurs).09C 12C 14C 16COperation Mode X (A) Y (A) X (A) Y (A) X (A) Y (A) X (A) Y (A)Heating 6.2 10.6 7.4 10.6 8.0 10.6 8.5 10.6Cooling 6.3 10.6 6.6 10.6 7.9 10.6 8.5 10.613.1.4 IPM (Power Transistor) Prevention ControlA. Overheating Prevention Control1 When the IPM temperature rises to 95°C, compressor will stop immediately.2 Compressor will restart delay 3 minutes when the IPM temperature decreases to 90°C.If this condition repeats continuously 3 times within 30 minutes, system will stop operation and OFF/ONremote control LED will blink (F22 error occurs).B. DC Peak Current Control1 When the current to IPM exceeds set value of 40.1 ± 5.0 A (MDC09), 44.7 ± 5.0 A (MDC12, MDC14 andMDC16), compressor will stop. Compressor will restart after three minutes.2 If the set value exceeds again for more than 30 seconds after the compressor restarts, operation will restartafter two minutes.3 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/ONremote control LED will blink (F23 error occurs).13.1.5 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 112°C, compressor will stop, and if this occurs 4times within 30 minutes, system will stop operation and OFF/ON remote control LED will blink (F20 error occurs).