Hitachi RAF-25RXB Service Manual page 124

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.)
Single model
Multi model 30sec ON/210sec OFF repeatedly
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
Transmission sign lights up with beep from indoor unit simultaneously.
Pattern 1
Pattern 1
Continuous 30sec ON/210sec OFF repeatedly
50sec ON/190sec OFF repeatedly
[Mon‐Sun] button and press
Default : Pattern 1
(UP)]/[ (DOWN)] buttons.
Pattern 2
Pattern 2
14ー6
[RESET] button
[Mon‐Sun] button.
P attern 3
Pattern 3
50sec ON/190sec OFF repeatedly
Continuous