Panasonic CS-E9DKDW / CU-E9DKD / CS-E12DKDW / CU-E12DKD Service Manual ▷ View online
B. Indoor Fan Control
i. Indoor fan control operation outline
1. Cooling / Dry
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2. Heating
ii. Auto Fan Speed
1. Cooling
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CS-E9DKDW CU-E9DKD / CS-E12DKDW CU-E12DKD
2. Heating
Note:
a. UP:
• If move from Lo, the fan speed will be shifted to Maximum 1520 rpm.
• If move from Maximum, the fan speed no change.
• In up zone, 10 rpm is added for every 10s until Maximum 1520 rpm.
• If move from Maximum, the fan speed no change.
• In up zone, 10 rpm is added for every 10s until Maximum 1520 rpm.
b. DOWN:
• The fan speed will be decreased one step every 10 sec. until Minimum 1270 rpm.
c.
Current Output Fixed:
• Maintain at present fan speed.
d. Instantaneous Maximum:
• Fan speed will be increased to maximum auto fan speed.
e. Temperature in ( ) is for Powerful Mode operation.
C. Fan Motor Control
1. Motor specification
High voltage PWM Motor
2. Feedback Control
a. Number-of-rotations feedback
Immediately after the fan started, rpm is checked and duty is added, and feedback control is performed. For high voltage
PWM motor, it is done once every 0.5 second.
PWM motor, it is done once every 0.5 second.
b. Offset duty T max/min limit
High voltage PWM motor has maximum offset duty.
(Refer Indoor fan motor control basic rotation speed)
3. Abnormal Detection Control
Conditions:
a. Out of rhythm signal input
b. If feedback number of rotations exceeded #2550 r/min or when less than #50 r/min.
Control: Fans stop
Return: Restart after 5 seconds
* It will not detect the out of rhythm condition within 5s for phase control motor (PWM motor is when duty=0) after start.
A fan stops when condition (1) and (2) happen within 25.0 seconds after fan starting, and if this happens for continuously
7 times, it will not retry.
7 times, it will not retry.
→ FM lock processing
4. Restart Prohibition Control
Restart is prohibited within 5s for phase control motor (PWM motor is when duty=0) after fan stop (except re-ON the power
supply).
supply).
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CS-E9DKDW CU-E9DKD / CS-E12DKDW CU-E12DKD
D. Deodorizing Control
i. Control condition
Control at cooling/dry operation and auto fan speed.
No Deodorizing Control is performed during ON timer standby operation and during Anti-freezing control prevention.
ii. Operation
The odor status is arranged as below and it is shifted as follow.
* When COMP is ON
1
→ 2 → 3
(Shift to 4 when COMP is OFF)
* When COMP is OFF
4
→ 5 → 6 → 7 → 6 ←→ 7
(Shift to 1 when COMP is ON)
* Start from 4 if the Thermostat is OFF during the start operation.
Odor Status
1
2
3
4
5
6
7
6.7.6...
1
Status Shift
according to COMP
ON
OFF
ON
Status Shift
according
Cooling
zone
40
50
—
30
90
20
90
20.90.20...
to time (s)
Dry zone
ON
Fan Speed
Cooling
zone
OFF
SSLo
Auto Fan Speed
SSLo
OFF
SSLo
OFF
SSLo.OFF...
Dry zone
SLo
8.1.8. 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.
compressor stops operation.
8.1.9. Airflow Direction
1. There are two types of airflow, vertical airflow (directed by horizontal vane) and horizontal airflow (directed by vertical vanes).
2. Control of airflow direction can be automatic (angles of direction is determined by operation mode, heat exchanger temperature
and intake air temperature) and manual (angles of direction can be adjusted using remote control).
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CS-E9DKDW CU-E9DKD / CS-E12DKDW CU-E12DKD
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