Ionizer Operation Case Study - Panasonic CS-V18CKE Service Manual

3. Ionizer operation status is not memorised by Micon. After OFF, when operation is "ON" again, air-conditioner operates
without ionizer operation.
However, during Cool mode etc + ionizer operation, if there is a power failure & then power resume, air conditioner shall on
at that mode + ionizer operation.
c. Timer during ionizer operation
Refer to case study in next for detail.

8.11.1. Ionizer Operation case study

8.11.2. Ionizer Error Detection Control
A. Purpose
To inform user that error occurs at ionizer system so that repairing job can be carried out.
B. Two type of error detection control:
(a) When Ionizer is ON (example case: Ionizer shorted, ionizer over current protection)
• • • • During ionizer ON operation, when feed back voltage = Lo (micon input) is detected, Ion is OFF. If feedback = Lo for 11
hrs 30 min, ION LED blinks continuously.
• • • • To cancel ion LED blinking, press ion button at remote control (or Auto operation switch at air conditioner unit). If ion
button is pressed again, ion LED blinks again.
• • • • The error can be reset by:
i) Operation ON/OFF button press to operation OFF.
ii) Auto operation switch press to operation OFF.
iii) Operation OFF due to Timer OFF reach.
iv) Timer set ON & operation from ON to OFF.
(b) When Ionizer is OFF (example case: ionizer connecting wire loose)
• • • • During air conditioner is at standby or ON operation and ionizer at OFF condition, if ionizer feed back voltage = Hi (micon
input) is detected, Ionizer breakdown detection control is activated and ion LED immediately blinks.
• • • • To cancel Ion LED blinking, press ion button at remote control (or Auto operation switch at air conditioner unit). If ion
button is pressed again, ion LED blinks again.
• • • • During ionizer at breakdown condition, if ionizer feedback voltage = Lo (become OK), ion LED will stop blinking.
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CS-V18CKE CU-V18CKE / CS-V24CKE CU-V24CKE