mundoclima H11 Series User manual

Service manual
.mundoclima.com CL21400 ~ CL21407
MULTI INVERTER SERIE H11
R32

1
CONTENTS
1. General information of Outdoor Units..................................2
2. Features
..................................................................................3
3. Dimensions.............................................................................4
4. Refrigeration Cycle Diagram.................................................5
5. Wiring diagram .......................................................................8
6. Indoor units combination ....................................................16
7. Sound Levels........................................................................
19
8. Installation Details ...............................................................20
8.1 Wrench torque sheet for installation...........................................................................
20
8.2 Connecting the cables ................................................................................................ 20
8.3 Pipe length and the elevation ..................................................................................... 20
8.4 Installation for the first time......................................................................................... 21
8.5 Adding the refrigerant after running the system for many years ................................ 24
8.6 Re-installation while the indoor unit need to be repaired ........................................... 25
8.7 Re-installation while the outdoor unit need to be repaired......................................... 27
9. Electronic control function..................................................29
10. Troubleshooting .................................................................
38
Caution: Risk of fire/flammable materials

2
1. General information of Outdoor Units
Model name
Dimension (mm)
Compressor
MUEX-14-H11.2 800x333x554 KSN140D21UFZ
MUEX-36-H11.4 946x410x810 KTF310D43UMT
MUEX-42-H11.5 946x410x810 KTF310D43UMT
MUEX-18-H11.2 805x330x554 KSN140D58UFZ
MUEX-21-H11.3 890x342x673 KSN140D58UFZ
MUEX-27-H11.3 890x342x673 KTM240D57UMT
Service manual
MUEX- H11 series
MUEX-28-H11.4
946x410x810
KTM240D57UMT

3
2. Features
The hydrophilic fin can improve the heating efficiency at operation mode.
It protects the valves and prevents water from dripping.
4 way valve control
It is only operated in the heating operation mode except defrosting operation.
Outdoor unit
Power relay control
Hydrophilic aluminum fin
Anti-rust cabinet
Valve protection cover
Low noise air flow system
Discharge pipe temperature protection
Service manual
MUEX- H11 series

4
3. Dimensions
Model Unitφ
mm
W
D
H
W1
A
B
MUEX-28-H11.4-
946
410
810
1034
673
403
MUEX-36-H11.4
946
410
810
1034
673
403
MUEX-42-H11.5
946
410
810
1034
673
403
MUEX-14-H11.2
805
330
554
877
511
317
MUEX-18-H11.2
805
330
554
877
511
317
MUEX-21-H11.3
890
342
673
990
663
354
MUEX-27-H11.3
890
342
673
990
663
354
$
%
'
Service manual
MUEX- H11 series

5
4. Refrigeration Cycle Diagram
4.1
Refrigeration circuit drawing of inverter 1 drive 2 type
MUEX-14-H11.2 , MUEX-18-H11.2
Service manual
LIQUID VALVE A
GAS VALVE A
HEAT
EXCHANGE
(EVAPORATOR)
HEAT
EXCHANGE
(CONDENSER)
Compressor
4-WAY VALVE
COOLING
HEATING
T2 Evaporator
temp. sensor
middle
T1 Room
temp. sensor
T3
Condenser
temp. sensor
TP Discharge
temp. sensor
T4 Ambient
temp. sensor
INDOOR OUTDOOR
EXV A
CAPILLARY
EXV B
LIQUID VALVE B
GAS VALVE B
Accumulator
T2B-A Evaporator
temp. sensor outlet
T2B-B
MUEX- H11 series

6
4.2 Refrigeration circuit drawing of inverter 1 drive 3 type
LIQUID VALVE A
GAS VALVE A
HEAT
EXCHANGE
(EVAPORATOR)
HEAT
EXCHANGE
(CONDENSER)
Compressor
4-WAY VALVE
COOLING
HEATING
T2 Evaporator
temp. sensor
middle
T1 Room
temp. sensor
T3
Condenser
temp. sensor
TP Discharge
temp. sensor
T4 Ambient
temp. sensor
INDOOR OUTDOOR
EXV A
CAPILLARY TUBE
EXV B
LIQUID VALVE B
GAS VALVE B
EXV C
LIQUID VALVE C
GAS VALVE C
Accumulator
T2B-A Evaporator
temp. sensor outlet
T2B-B
T2B-C
4.3 Refrigeration circuit drawing of inverter 1 drive 4 type
Service manual
LIQUID VALVE A
GAS VALVE A
HEAT
EXCHANGE
(EVAPORATOR)
HEAT
EXCHANGE
(CONDENSER)
Compressor
4-WAY VALVE
COOLING
HEATING
T2 Evaporator
temp. sensor
middle
T1 Room
temp. sensor
T3
Condenser
temp. sensor
TP Discharge
temp. sensor
T4 Ambient
temp. sensor
INDOOR OUTDOOR
EXV A
CAPILLARY TUBE
EXV B
LIQUID VALVE B
GAS VALVE B
EXV C
LIQUID VALVE C
GAS VALVE C
EXV D
LIQUID VALVE D
GAS VALVE D
Accumulator
High pressure
switch
Low pressure
switch
T2B-A
Evaporator
temp. sensor outlet
T2B-B
T2B-C
T2B-D
MUEX-21-H11.3 , MUEX-27-H11.3
MUEX-28-H11.4 , MUEX-36-H11.4
MUEX- H11 series

7
4.4 Refrigeration circuit drawing of inverter 1 drive 5 type
Service manual
LIQUID VALVE A
GAS VALVE A
HEAT
EXCHANGE
(EVAPORATOR) HEAT
EXCHANGE
(CONDENSER)
COOLING
HEATING
T2 Evaporator
temp. sensor
middle
T1 Room
temp. sensor
T3
Condenser
temp. sensor
T4 Ambient
temp. sensor
INDOOR OUTDOOR
EXV A
CAPILLARY TUBE
EXV B
LIQUID VALVE B
GAS VALVE B
EXV C
LIQUID VALVE C
GAS VALVE C
EXV D
LIQUID VALVE D
GAS VALVE D
EXV E
LIQUID VALVE E
GAS VALVE E
Compressor
4-WAY VALVE
TP Discharge
temp. sensor
Accumulator
High pressure
switch
Low pressure
switch
T2B-A Evaporator
temp. sensor outlet
T2B-B
T2B-C
T2B-D
T2B-E
MUEX-42-H11.5
MUEX- H11 series

8
5. Wiring diagram
MUEX-14-H11.2 , MUEX-18-H11.2
Service manual
MUEX- H11 series
-٤WAY
DC-FAN
OPTIONAL:DC-FAN
CN 7
3
ELECTRONIC EXPANSION VALVE
5/6
OPTIONAL
CN 31
PAN HEATER
CN 15
OPTIONAL
CN 60
OPTIONAL
CRANKCASE HEATER
CN 17
OPTIONAL
BLUE
BROWN
BLACK
LSN
AMBIENT TEMP. SENSOR
DISCHARGE TEMP. SENSOR
CN 21
CONDENSER TEMP. SENSOR
COMPRESSOR
UVWBLUE
RED
BLACK
AC-FAN
CAPACITOR
OPTIONAL:
AC-FAN
53
CN 25
S(B)
N(A)
N(B)
L(B)
L
L(A)
N
S(A)
5/6
CN 4
CN 2
CN 7CN 3
ELECTRONIC EXPANSIVE VALVE
TESTPORT
CN 1-3CN 1-1CN 1-2
INDOOR PIPEOUT TEMP
VALVE-B
VALVE-AB
A
POWER SUPPLY
TO B TO A
S(2)
S(1)
NOTE:S(1);S(2)NO USED
16022300002793
Notes:This symbol indicates the elementis optional,the actual shape shallbe prevail.
OPTIONAL
Y/G
MAIN BOARD
CN 1ACN 3CN 1CN 2CN 16
CN 50
CN 30CN 29CN 28
BLUE
RED
BLACK
Y/GY/GY/GY/G
OPTIONALOPTIONAL
OPTIONALOPTIONAL
GYBKBRGYBKBR

9
4UZK 99GXK[YKJOTUZNKXZ_VKULSUJKRY:NK_JUTZTKKJZUHKIUTTKIZKJOTS[RZO
SUJKRY
Service manual
MUEX- H11 series

10
MUEX-21-H11.3 , MUEX-27-H11.3
Service manual
MUEX- H11 series

11
MUEX-27-H11.3
Service manual
MUEX- H11 series

12
MUEX-36-H11.4
Service manual
MUEX- H11 series

13
MUEX-42-H11.5
Service manual
MUEX- H11 series

14
6. Indoor units combination
6.1 Indoor unit combination for MUEX-14-H11.2
One unit
Two unit
7
7+7
9+9
9
7+9
9+12
12
7+12
18
6.2 Indoor unit combination for MUEX-18-H11.2
One unit
Two unit
7
7+7
9+9
9
7+9
9+12
12
7+12
12+12
18
6.3
Indoor unit combination for MUEX-21-H11.3
One unit
Two unit
Three unit
7
7+7
9+9
7+7+7
7+9+9
9
7+9
9+12
7+7+9
9+9+9
12
7+12
9+18
7+7+12
18
7+18
12+12
6.4 Indoor unit combination for MUEX-27-H11.3
One unit
Two unit
Three unit
7
7+7
7+18
9+18
7+7+7
7+9+12
9+12+12
9
7+9
9+9
12+12
7+7+9
7+12+12
12+12+12
12
7+12
9+12
12+18
7+7+12
9+9+9
18
7+9+9
9+9+12
6.5 Indoor unit combination for MUEX-28-H11.4
One unit
Two unit
Three unit
Four unit
7
7+7
9+9
12+18
7+7+7
7+9+12
9+9+18
7+7+7+7
7+7+9+12
9
7+9
9+12
12+24
7+7+9
7+9+18
9+12+12
7+7+7+9
7+9+9+9
12
7+12
9+18
18+18
7+7+12
7+12+12
12+12+12
7+7+7+12
9+9+9+9
18
7+18
9+24
7+7+18
9+9+9
7+7+9+9
24
7+24
12+12
7+9+9
9+9+12
Service manual
MUEX- H11 series

15
6.6 Indoor unit combination for MUEX-36-H11.4
If one of indoor units is ATW,
Note: ATW can only be connected with an A system.
One unit
Two unit
Three unit
Four unit
7
7+7
9+18
7+7+7
7+9+12
7+18+18
9+12+18
7+7+7+7
7+7+9+12
7+9+9+12
9+9+9+12
9
7+9
9+24
7+7+9
7+9+18
9+9+9
9+12+24
7+7+7+9
7+7+9+18
7+9+9+18
9+9+9+18
12
7+12
12+12
7+7+12
7+9+24
9+9+12
9+18+18
7+7+7+12
7+7+12+12
7+9+12+12
9+9+12+12
18
7+18
12+18
7+7+18
7+12+12
9+9+18
12+12+12
7+7+7+18
7+7+12+18
7+12+12+12
9+12+12+12
24
7+24
12+24
7+7+24
7+12+18
9+9+24
12+12+18
7+7+9+9
7+9+9+9
9+9+9+9
12+12+12+12
9+9
18+18
7+9+9
7+12+24
9+12+12
9+12
One unit
Two unit
Three unit
Four unit
7
7+ATW
7+7+ATW
9+12+ATW
7+7+7+ATW
7+9+12+ATW
9+12+12+ATW
9
9+ATW
7+9+ATW
9+18+ATW
7+7+9+ATW
7+9+18+ATW
9+12+18+ATW
12
12+ATW
7+12+ATW
12+12+ATW
7+7+12+ATW
9+9+9+ATW
12+12+12+ATW
18
18+ATW
7+18+ATW
12+18+ATW
7+7+18+ATW
9+9+12+ATW
12+12+18+ATW
ATW
9+9+ATW
18+18+ATW
7+9+9+ATW
9+9+18+ATW
Service manual
MUEX- H11 series

16
6.7
Indoor unit combination for MUEX-42-H11.5
One Unit
Two Unit
Three Unit
7
7+7
9+18
7+7+7
7+9+18
9+9+12
12+12+12
9
7+9
9+24
7+7+9
7+9+24
9+9+18
12+12+18
12
7+12
12+12
7+7+12
7+12+12
9+9+24
12+12+24
18
7+18
12+18
7+7+18
7+12+18
9+12+12
12+18+18
24
7+24
12+24
7+7+24
7+12+24
9+12+18


9+9
18+18
7+9+9
7+18+18
9+12+24


9+12
7+9+12
9+9+9
9+18+18
Four Unit
7+7+7+7
7+7+9+18
7+9+9+12
7+12+12+12
9+9+12+18
7+7+7+9
7+7+9+24
7+9+9+18
7+12+12+18
9+9+12+24
7+7+7+12
7+7+12+12
7+9+9+24
9+9+9+9
9+12+12+12
7+7+7+18
7+7+12+18
7+9+12+12
9+9+9+12
9+12+12+18
7+7+7+24
7+7+12+24
7+9+12+18
9+9+9+18
12+12+12+12
7+7+9+9
7+7+18+18
7+9+12+24
9+9+9+24
12+12+12+18
7+7+9+12
7+9+9+9
7+9+18+18
9+9+12+12
Five Unit
7+7+7+7+7
7+7+7+9+18
7+7+9+12+12
7+9+9+9+18
9+9+9+12+12
7+7+7+7+9
7+7+7+12+12
7+7+9+12+18
7+9+9+12+12
9+9+12+12+12
7+7+7+7+12
7+7+7+12+18
7+7+12+12+12
7+9+12+12+12
7+7+7+7+18
7+7+9+9+9
7+7+12+12+18
9+9+9+9+9
7+7+7+9+9
7+7+9+9+12
7+9+9+9+9
9+9+9+9+12
7+7+7+9+12
7+7+9+9+18
7+9+9+9+12
9+9+9+9+18
Service manual
MUEX- H11 series

17
7. Sound Levels
Note: H= 0.5 × height of outdoor unit
Model Noise Power dB(A) Noise level dB(A)
MUEX-28-H11.4 69 61
MUEX-36-H11.4 68 63
MUEX-42-H11.5 70 63
MUEX-14-H11.2 65 56
MUEX-18-H11.2 65 54
MUEX-21-H11.3 66 58
MUEX-27-H11.3 67 58
H
1.0m
Outdoor Unit
Microphone
Service manual
MUEX- H11 series

18
8. Installation Details
8.1 Wrench torque sheet for installation
Outside diameter
Torque
Additional tightening torque
mm
N.cm
N.cm
Ф6.35
1500(153kgf.cm)
1600(163kgf.cm)
Ф9.52
2500(255kgf.cm)
2600(265kgf.cm)
Ф12.7
3500(357kgf.cm)
3600(367kgf.cm)
8.2 Connecting the cables
The power cord of connect should be selected according to the following specifications sheet.
Rated current of appliance
Nominal cross-sectional area (mm²)
>3 and ≤6
0.75
>6 and ≤10
1
>10 and ≤16
1.5
>16 and ≤25
2.5
The cable size and the current of the fuse or switch are determined by the maximum current indicated on the
nameplate which located on the side panel of the unit. Please refer to the nameplate before selecting the
cable, fuse and switch.
8.3 Pipe length and the elevation
Maximum piping length and height difference
1 drive 2
1 drive 3
1 drive 4
1 drive 5
Max. length for all rooms
(m)
40
60
80
80
Max. length for one
IU (m)
25
30
35
35
Max. height difference between
IU and OU (m)
15
15
15
15
Max. height difference between
IUs (m)
10
10
10
10
Additional refrigerant charge
Connective Pipe Length(m)
Additional refrigerant
Liquid Side
Ø 6.35 (1/4”)
Ø 9.52 (3/8”)
Pre-charge pipe length (ft/m)
(pre-charge pipe length xN )
N/A
More than (pre-charge pipe lengthxN) ft/m
(Total pipe length - pre-
charge pipe
lengthxN) x12g/m
(Total pipe length - pre-
charge pipe
lengthxN) x24g/m
(Total pipe length - pre-
charge pipe
lengthxN) x0.13oZ/ft
(Total pipe length - pre-
charge pipe
lengthxN) x0.26oZ/ft
Caution:
ȘRefrigerant pipe diameter is different according to indoor unit to be connected. When using the
extension pipe, refer to the tables below.
Service manual
MUEX- H11 series

19
ȘWhen refrigerant pipe diameter is different from that of outdoor unit union (for 18K&24K indoor unit),
additional transfer connector needs to be used on outdoor unit union.
Indoor unit
Extension pipe diameter (mm/inch)
Model
Pipe diameter (mm/inch)
7K9K12K
Liquid
6.35(1/4)
Liquid
6.35(1/4)
Gas
9.52(3/8)
Gas
9.52(3/8)
18K
Liquid
6.35(1/4)
Liquid
6.35(1/4)
Gas
12.7(1/2)
Gas
12.7(1/2)
24K
Liquid
9.52(3/8)
Liquid
9.52(3/8)
Gas
15.9(5/8)
Gas
15.9(5/8)
Outdoor unit union diameter (mm/inch)
1 drive 2
Liquid
6.35(1/4) *2
Gas
9.52(3/8)
*2
1 drive
3
Liquid
6.35(1/4) *3
Gas
9.52(3/8)
*3
1 drive
4
Liquid
6.35(1/4) *4
Gas
9.52(3/8)
*3
12.7(1/2)
*1
1 drive
5
Liquid
6.35(1/4) *5
Gas
9.52(3/8)
*4
12.7(1/2) *1
8.4
Installation for the first time
Air and moisture in the refrigerant system have undesirable effects as below:
ƽPressure in the system rises.
ƽOperating current rises.
ƽ
Cooling or heating efficiency drops.
ƽMoisture in the refrigerant circuit may freeze and block capillary tubing.
ƽWater may lead to corrosion of parts in the refrigerant system.
Therefore, the indoor units and the pipes between indoor and outdoor units must be leak tested and
evacuated to remove gas and moisture from the system.
Gas leak check (Soap water method)
:
Apply soap water or a liquid neutral detergent on the indoor unit connections or outdoor unit connections
by a soft brush to check for leakage of the connecting points of the piping. If bubbles come out, the pipes
have leakage.
1. Air purging with vacuum pump
Service manual
MUEX- H11 series