Panasonic CS-MZ20UD3EA Service Manual ▷ View online
97
17. Disassembly and Assembly Instructions
WARNING
High Voltage is generated in the electrical parts area by the capacitor. Ensure that the capacitor has discharged sufficiently before proceeding
with repair work. Failure to heed this caution may result in electric shocks.
with repair work. Failure to heed this caution may result in electric shocks.
17.1 Indoor Electronic Controller, Blower Fan, Fan Motor & Drain Motor
Removal Procedure.
17.1.1 To Remove Cabinet Bottom Plate
1 Unscrew 14 screws on the cabinet bottom plate, 10 screws on the cabinet top plate and detach cabinet
bottom plate and cabinet top plate from unit.
17.1.2 To Remove Electronic Controller
1 Unscrew the 2 screws on the Control Board and open the Control Board Cover.
2 Detach all connectors as labeled from the electronic controller. Then pull out main controller gently.
Remove 14 Screw
Cabinet top plate
Cabinet bottom plate
Remove 10 Screw
Remove Screw
CN-T1
CN-T2
CN-FM
CN-TH
CN-DISP
CN-FSW
CN-DRMTR1
CN-AC
98
17.1.3 To Remove Fan Motor and Blower Fan
1 Detach the Upper and Inner Casing
2 Disengage the 4 catches (2 each on the left and right) on the Air Guide.
2 Disengage the 4 catches (2 each on the left and right) on the Air Guide.
3 Unscrew the 2 screws on the Fan Motor Bracket and detach Fan Motor Bracket.
4 Remove the Fan Motor and Blower Fan from the unit.
5 Use a 3.0 mm hexagonal wrench to loosen the bolts connecting the Fan Motor and Fan. Detach the shaft
4 Remove the Fan Motor and Blower Fan from the unit.
5 Use a 3.0 mm hexagonal wrench to loosen the bolts connecting the Fan Motor and Fan. Detach the shaft
connecting the Fan Motor and Blower Fan.
17.1.4 To Remove the Drain Motor
1 Unscrew the 1 screw on the Side Plate and remove Drain Pan from the unit.
Air guide (Upper)
Air guide (Bottom)
Air guide (Upper)
Air guide (Bottom)
Catches
Remove Screw
Remove Bolts
Remove Screw
Remove
99
2 Unscrew 5 screws on the Evaporator and remove 2 sensor from holder and remove Evaporator from the unit.
3 Unscrew 4 screws, 1 nut and 1 Spring Clip on the Drain Motor Bracket and remove Drain Motor from unit.
4 Unscrew 3 screws on the Drain Motor and detach the Drain Motor from Drain Motor Bracket.
Remove Screw
Remove Sensor
Remove Nut
Spring Clip
Remove Screw
Remove Screw
100
18. Fan
Performance
18.1 CS-MZ20UD3EA
Test Report
Tap
Static Pressure
(Pa)
Airflow
(m
3
/min)
Lo
-0.1 10.4
2.2 10.1
14.4 8.4
23.4 6.9
30.4 5.5
37.1 4.4
23.4 6.9
30.4 5.5
37.1 4.4
Me
-0.1 11.5
7.1 10.6
18.9 9.2
27.2 7.8
33.9 6.6
39.3 5.6
42.4 4.6
27.2 7.8
33.9 6.6
39.3 5.6
42.4 4.6
Tap
Static Pressure
(Pa)
Airflow
(m
3
/min)
Hi
0.1 12.7
13.5 11.3
24.6 10.1
33.3 8.9
41.1 7.8
46.4 6.8
49.9 6.0
51.6 5.1
24.6 10.1
33.3 8.9
41.1 7.8
46.4 6.8
49.9 6.0
51.6 5.1
Hi Fan (Hi
Static P
selected)
-0.1 14.7
39.3 10.5
48.1 9.4
54.7 8.3
60.1 7.3
63.8 6.6
67.8 5.8
48.1 9.4
54.7 8.3
60.1 7.3
63.8 6.6
67.8 5.8
Fan Performance Curve
Static Pressure Upper Limit
Static Pressure Lower Limit
Static
Pressure (Pa)
Airflow
(m
3
/min)
RPM
Static
Pressure (Pa)
Airflow
(m
3
/min)
Static
Pressure (Pa)
Airflow
(m
3
/min)
61
7.1
Hi Fan (Hi Static P selected)
1230
43
10.1
10
13.7
48
6.3
Hi Fan (Standard)
1070
25
10.1
5
12.2
39
5.6
Me Fan (Standard)
970
20
9.0
2
11.2
32 5.4
Lo
Fan
(Standard) 880 15 8.2
0 10.4
0
10
20
30
40
50
60
70
80
4
5
6
7
8
9
10
11
12
13
14
15
St
at
ic
p
re
ssur
e
(P
a)
Air Flow (m3/min)
P-Q chart
Hi
Me
Lo
Switch Hi
Static Pressure Upper
Limit
Limit
Static Pressure Lower
Limit
Limit
Poly. (Static Pressure
Upper Limit)
Upper Limit)
Poly. (Static Pressure
Lower Limit)
Lower Limit)
Click on the first or last page to see other CS-MZ20UD3EA service manuals if exist.