Indoor Fan Motor Operation; Outdoor Fan Motor Operation - Panasonic CU-RE9NKX Service Manual

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Intake temp.- setting temp.
2nd & following judgment (every 15 minutes after 1st judgment)
JUDGE CONDITION
If indoor intake temp – Remote control temp
setting ≥ +3
If -2 ≤ indoor intake temp. – Remote control
Temp. setting < +3
If indoor intake temp. – Remote control
temp. setting < -2
Intake temp.- setting temp.

12.2 Indoor Fan Motor Operation

Basic Rotation Speed
i.
Manual Fan speed
Fan motor's number of rotation is determined according to remote control setting.
Remote control
Model
Tab
COOLING(rpm)
CS-RE9NKX
HEATING(rpm)
COOLING(rpm)
CS-RE12NKX
HEATING(rpm)
COOLING(rpm)
CS-RE15NKX
HEATING(rpm)
ii.
Auto Fan Speed (Cooling, Soft Dry Mode)
According to room temperature and setting temperature, indoor fan speed is determined automatically.
The indoor fan will operate according to pattern below.
Fan speed
A
Higher
Medium
Lower
B.
Feedback control
• Immediately after the fan motor started, feedback control is performed once every second.
• During fan motor on, if fan motor feedback 2550 rpm or < 50 rpm continue for 10 seconds, then fan motor error
counter increases, fan motor then stops and restarts. If the fan motor counter becomes 7 times, then H19 - fan motor
error is detected. Operation stops and cannot on back.

12.3 Outdoor Fan Motor Operation

Outdoor fan motor is operated with one fan speed only. It starts when compressor starts operation and it stops 30
seconds after compressor stops operation.
-6 -5 -4 -3 -2 -1 0
HEAT
-6 -5 -4 -3
O
Hi
1150
1040
1150
1150
1320
1300
b
c
d
HEAT
DRY
REFERANCE MODE
Cool mode if previously
Heat mode
Dry mode if previously is Dry mode
Maintain current mode
Heat mode
MAINTAIN
CURRENT MODE
-2 -1 0
O
O
Me+
Me
1030
920
810
890
830
770
1060
970
880
1010
950
890
1160
1040
920
1140
1060
980
e
f
g
34
COOL
1
2
3
4
5
is Cool /
COOL/DRY
1
2
3
4
5
6
O
O
Me-
Lo
700
710
790
830
800
900
h
a
b
6
QUIET
QLo
600
650
620
680
730
740

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