Hitachi RAK-18QXB Service Manual page 75

Indoor unit
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HOW TO CHANGE THE INTERMITTENT FAN CONTROL SETTING
The intermittent fan control during thermo off in Heating mode can be changed by the remote controller.
(This procedure should be done only by service personnel.)
It is possible to select from 3 patterns.
PROCEDURE
1. Press
[ START/STOP] button,
   
simultaneously.
Release
[RESET] button only and make sure that all marks on the remote controller display
   
are indicated, then release
Remote controller now enters "Intermittent Fan Control Change Mode".
2. Press [ROOM TEMPERATURE setting] [
(The intermittent pattern changed with indoor unit beep sound.)
NOTE :
(1) The indication of the selected intermittent pattern will disappear after 10 seconds.
(2) The selected intermittent pattern will remain unchanged after the unit is turned off.
   
[START/STOP] button and
   
( UP)]/[
Transmission sign lights up with beep from indoor unit simultaneously.
Pattern 1
[Mon-Sun] button and press
   
Default : Pattern 1
( DOWN)] buttons.
Pattern 2
- 75 -
[RESET] button
   
[Mon-Sun] button.
Pattern 3

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