mundoclima MU-WZ Series User manual

English
CL19782
www.mundoclima.com
Service manual
AIR CONDITIONER WITHOUT OUTDOOR UNIT
MU-WZ Series

Index
Index
1) Main Features
2)
Certification ( CE
EMC
R
oH
S)
2)
Certification
(
CE
-
EMC
–
R
oH
S
)
3) Overall Dimensions
4) Explosion view and parts list
5) Rated technical data and 5.1)
Performance data
Performance
data
6) Energy label
7) Noise level ( Indoor – Outdoor )
8) Installation
9)
Electric wiring
9)
Electric
wiring
10) Description of software operation
11) Precaution
12) Ordinary maintenance
13)
Pb
l d lti
13)
P
ro
bl
em an
d
so
l
u
ti
on

1.Main features
Double ducted machine is different with the normal split type air conditioner, and there is no outdoor
unit. It is a special solution for commercial and residential buildings.
Th t i
dt t li i t it b h d ff t l k t th b ildi l
Th
e
t
w
i
n-
d
uc
t
sys
t
em e
li
m
i
na
t
es secur
it
y
b
reac
h
es an
d
o
ff
ers a grea
t
l
oo
k
t
o
th
e
b
u
ildi
ng, as on
l
y
2x162mm holes are required.
The benefits of no outdoor unit are: no sleeve, no louvers and no rust, ensuring low cost installation
and maintenance. The heat pump provides low operating costs when in heating mode.
Also, double ducted machine could be installed on glass with special precautions for the glass
stcucture.
• R410a gas, friendly refrigerant with high efficiency ozone.
•Auto water evaporation in cooling and heating mode
• Intelligent control technology.
• High-efficiency cooling and heating performance.
• Silent operation
• Full function LCD remote control

1.1 Packing method

2. Certificatin
2.1 CE-EMC

2.2 CE-LVD

2.3 RoHS

3. Overall Dimensions

4. Explosion view and parts list
WZ-32 Explosion view

WZ-32 Parts list
No. in
Explosive
View
ZYMBO code
BOM Chinese Name English Name Remarks
1R122160384 顶钣金组件 Top cover assy.
2 R127040627 左盖板 Left cover
3 R127030204 PCB 固定板 Fixture for PCB
4 R131010481 PCB 板PCB including
R131190043/44/60
5 R138140570 后盖板海绵（压） Back insulation material(comp side)
6R127020524 后盖板 Back cover
7 R138140568 后盖板海绵（外） Back insulation material(outside)
8 R138140569 后盖板海绵（内） Back insulation material(inside)
9 R128060314 新风门调解窗口 Fresh air window
10 R131030006 三位接线端子 Terminal
11 R128040313 过线圈 Inside cable plastic ring
12 R131060051 步进电机 Step motor
13
R131050078
冷凝器电机
Condenser fan motor
13
R131050078
冷凝器电机
Condenser
fan
motor
14 R128060524 气管塑料膜 Plastic sheet
15 R128030437 格栅 Rub cup grill
16 R127020528 电加热固定板 Electrical heater bracket
17 R131080033 温控器 Thermostat
18 R131190064 温控器连线 Fuse
19 R128060394 出风管安装环A O-ring for air inlet pipe
20 R128060395 出风管安装环B O-ring for air outlet pipe
线控 膜
21 R128040312
线控
器面
膜
On board control box film
22 R128040310 线控器盒 On board control box
23 R128060387 提手 Handle
24 R127040631 进风格栅 Air inlet grille
25 R128040324 遥控器盒 Remote control box
26 R128040326 遥控器盒盖 Remote control box cover
27 R137010073 橡胶垫 Rubber support
28 R131170147 线控器（带电加热） On board control PCB
29 R128020483 过滤网 Filter
30 R122120269 四通阀组件 Reversing valve and tubes assy.
31 R133140060 压缩机组件 Compressor assy.
32 R138140571 右盖板海绵 Right cover insulation material
33 R127040629 右盖板 Right cover
34 R127080054 挂墙板 Mounting sheet
35 R127020534 内电机固定条 Indoor motor cover
36
R127020532
内电机架
Id t b kt
36
R127020532
内电机架
I
n
d
oor mo
t
or
b
rac
k
e
t
37 R131040165 内电机 Indoor motor
38 R128050017 贯流风扇 tangential fan
39 R139050004 轴承座 axletree seat
40 R138140572 顶钣金海绵 Top cover insulation material

41 R138140566 底板海绵 Basic pan insulation material
42 R131190062 电加热组件 Electrical heater assy.
43 R138140573 电容底海绵 Compressor capacitor insulation
material
44 R131150005 压缩机电容 Capacitor for compressor
45 R140140068 底钣金 Basic pan
46 R127020536 支撑板 Link plate
47 R127020522 压缩机安装板 Compressor mounting sheet
48 R138140567 压缩机底海绵 Compressor bottom insulation material
49 R121050205 冷凝器组件 Condenser assy.
50 R127020373 出风格栅 Air outlet grill
51 R122010180 蒸发器组件 Evaporator assy
52 R128060392 室内机上盖 Evaporator top epp
53 R128060393 室内机下盖 Evaporator down epp
54 R138140620 蒸发器密封海绵 Evaporator insulation material
55 R127020530 中间钣金 Partition
56 R128060391 蜗壳上盖 EPP Condenser top epp closer
57
R128060390
底座
EPP
Condenser lower epp
57
R128060390
底座
EPP
Condenser
lower
epp
58 R128060389 蜗壳 EPP Condenser top epp
59 128030542 面板上镜 Upper PMMA
60 R128030469 面板下镜 Lower PMMA
61 R128030455 前面板 Front panel
62 R128030456 导风板 flap panel
63
R128030286
轴套
Axis sleeve
63
R128030286
轴套
Axis
sleeve
64 R138140383 面板下海绵 Front panel bottom insulation material
65 R138140382 面板上海绵 Front panel top insulation material
66 R138140565 面板海绵3 Front panel insulation material 3
67 R131140039 电机电容 Capacitor for motor
68 R132040216 电源线 Power cable
69 R139010035 过线圈 Cable plastic ring
70 R139010076 水塞 Stopple
71 R122060129 毛细管组件 Capillary assy.
72 R128070006 排水管组件 Drain parts
73 R131170148 遥控器 Remote control
74 R128040261 遥控器座 Remote control seat
75 R131100001 电池 Battery
76
R131102097
灯板
LED display
76
R131102097
灯板
LED
display

5.Rated technical data
Descriptions Unit WZ-32
Cooling capacity
W(Btu/h)
3348(11400)
Cooling
capacity
W
(Btu/h)
3348(11400)
Heating capacity W (Btu/h) 3762(12840)
Rated voltage V230
Frequency Hz 50
Absorbed power in cooling W 1287
Absorbed current in cooling A 5.6
Absorbed power in heating W 1214
Absorbed current in heating A 5.3
EER label ( Cooling Mode ) ABCDEFG A
COP label ( Heating Mode ) ABCDEFG A
Indoor Air low m3/h 480
Outdoor Air lo
w
m3/h 690
Noise lever ( SPL ) dB(A) See table
Dehumidification capacity L/24h 31.2
Optional temperature (remote control) ℃18-30
Maximum external temperature *** °C +43
Minimum external temperature HP **** °C -5
Fuse (T3 15L)
V
250
**The above data could be changed in order to improve the performance.
Fuse
(T3
,
15L)
V
250
Refrigerant / R410a g 680
Dimension H/W/D cm 53.7/94.8/26
Net Weight Kg 45
*** The machine can work at T3 condition , with max out door temperature 52
°C but the cooling performance will be reduced .
**** The machine can work at -15 °C , but the Heating performance will be
reduced .
See in the next page the real performance data in Heating and Cooling
mode

Cooling test

Heating pump test (no heater)

Heating pump test (no heater)

Heating pump test (no heater)

6. Energy label

7. Noise level (Indoor – Outdoor)
**The Noise test is done in semi reverberant room , with ambient noise level 23
dB(A) , the structure is not perfectly appropriate for the double ducted machine , for
this reason the noise level is correct around - 3, 5 dB(A) calculated .
SPL (Sound Pressure Level) dB(A) MIN Speed MED Speed MAX Speed
Indoor Fan Mode 41,7 45,1 48,3
Indoor Cooling / Heating Mode 43,8 46,5 49,0
Out Door Pipes 41,6 - 59,6

7.1. Noise level ( Indoor Fan Mode )