York IDM030B21E Series Service Manual page 127

(2) Rotation Control Function
The rotation control switches multiple indoor unit operating mode to FAN mode (Thermo-OFF) in order
one by one.
Indoor Unit 1
Indoor Unit 2
Indoor Unit 3
NOTES:
1. The fan mode time can be selected in the interval of three minutes, five minutes and ten minutes.
2. It is possible to change the rotation assigned number according to the minimum differential between
the setting temperature and indoor temperature.
(3) Intermittent Control Function
The intermittent control repeats Cooling/Heating and Fan (Thermo-OFF) mode in fixed intervals.
NOTE:
The fan mode is repeated in the interval of five minutes (SAV: LOW), ten minutes (SAV: MED) and fifteen
minutes (SAV: HIGH) during heating operation.
SM-16005-rev.2
Order of Fan
Operation
1
Fan
1
Operation*
Cooling
Operation
Cooling Operation
30 Minutes
Cooling Operation
SAV: LOW
20 Minutes
Cooling Operation
SAV: MED
17 Minutes
Cooling Operation
SAV: HIGH
15 Minutes
EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING
Cooling Operation
Order of Fan
Operation
2
Fan Cooling
1
Operation* Operation
Order of Fan
Operation
In3
Fan
1
Operation*
Time
30 Minutes
Fan Operation Cooling Operation
10 Minutes 20 Minutes
Fan Operation Cooling Operation
13 Minutes 17 Minutes
Fan Operation Cooling Operation
15 Minutes 15 Minutes
The indoor unit fan
operation is
performed in rotation by
indoor unit address Nos.
Fan Operation
10 Minutes
Fan Operation
13 Minutes
Fan Operation
15 Minutes
Time
5-39