MUND CLIMA MUPR-H5 User manual

MUPR-H5
English
CL20735 to CL20737
INVERTER SERIE H5
Service manual

Product Specification……………………..1
Refrigeration Diagram……………………..3
Wiring Diagram…………………………….6
Troubleshooting Guide……………………10
CONTENTS
Operation Details…………………………..29

1.1 Photo of Product
1
Chapter 1 Product Specification
Indoor unit
Outdoor unit

802
2
1.2 Outline Dimensions
Indoor Unit
Outdoor Unit
MODEL 9000BTU 12000BTU 18000BTU
Wmm 802 940
Dmm 265 265 300
Hmm 190 190 220
MODEL 9000BTU 12000BTU 18000BTU
Wmm 720 760 800
Dmm 255 260 300
Hmm 515 540 690

3
2.1 Cooling Only
Steam-gas of low pressure
Liquid of low pressure Gas of high pressure
(also a little gas) & temperature
Super cooled liquid
of high pressure
Chapter 2 Refrigeration
D
iagrams
Cooling Mode
Cooling Cycle
Indoor heat exchanger
(Evaporation) Compressor (Compression)
Capillary
(Throttling) Outdoor heat exchanger (Condensation)

4
2.2 Cooling & Heating
Steam-gas of low pressure
Liquid of low pressure
(also a little gas)
Gas of high
pressure &
Super cooled liquid temperature
of high pressure
Cooling Mode
Cooling Cycle
Compressor
(Compression)
Outdoor heat exchanger
(Condensation)
Indoor heat exchanger
(Evaporation)
Capillary
(Throttling)
4-way valve
(Heat pump only)

5
Gas of high
Pressure & temperature
Super cooled liquid of low pressure
Steam-gas of
low pressure
Super cooled liquid
of high pressure
Heating Mode
Heating Cycle
Indoor heat exchanger
(Condensation) Compressor (Compression)
Capillary
(Throttling) Outdoor heat exchanger (Evaporation)
4-way valve
(Heat pump only)

6
Chapter
3
Wiring Diagram
Indoor unit
Electric chart for 09/12K

7
Outdoor unit

Electric chart for 18K
Indoor unit
8

Outdoor unit
9

10
5.1 Error Code
No. Error Code Problem
1 E1 Room temperature sensor fault
2 E2 Outdoor coil temperature sensor fault
3 E3 Indoor coil temperature sensor fault
4 E4 indoor fan motor or DC motor feedback fault
5 E5 indoor & outdoor communication fault
6 F0 Outdoor DC Fan motor fault
7 F1 IPM modular fault
8 F2 PFC modular fault
9 F3 Compressor operation fault
10 F4 Exhaust Temperature sensor fault
11 F5 Compressor top cover protection
12 F6 Outdoor ambient temp sensor fault
13 F7 Over/under voltage protection
14 F8 Outdoor modular communication fault
15 F9 Outdoor E²PROM fault
16 FA Suction temperature sensor fault
Cha
pter
5
Troubleshooting Guide

Troubleshooting Guide for 09
11
5.2
1. The Foremost Inspecting Items
⑴The input voltage must be within +10% tolerance of the rated Voltage.If it
is not the case, the air-conditioner will probably not work normally.
⑵Check the connecting cord between indoor unit and outdoor unit to see if
it is properly connected. The connecting must be done according to the
wiring diagram, please also notice that even different models may have the
connecting cord of the same specification.
Please check if the marks at the connecting terminal and the marks on the
cord can match, otherwise, the air-conditioner will not work normally.
⑶If the following phenomena are found, the problem is not from the
air-conditioner itself.
12K
-

12
5
The compressor works
discontinuously at cooling and
dehumidifying mode, and the indoor
fan motor slows down.
The compressor stops internallyor the fan
motor slows down to prevent the indoor heat
exchanger from being frozen.
NO. Problems Causes
1The motor is heard operating but the
air-conditioner dose not work when
the indoor unit is powered on
Since the air-conditioner is powered on, it
will come to working conditionas long as you
press the ON/OFF button ofthe remote
control and the Signal is well received.
2
The compressor stops running but
the indoor fan motor keeps working
when it is at cooling mode with the
indoor temperature higher thanset
temperature.
If youturn off the air-conditioner and restart it
immediately, it will return to normal in 3
minutes, after that,the air-conditioner will
automatically adjust the indoor fanspeed to
what you set.
3The compressor works
discontinuously at dehumidifying
mode.
The air-conditioner will automaticallycontrol
the working of the compressor according to
the inside temperature
4The air-conditioner does not work
while the LED displayis on.
The TIMERis set with the air-conditioner; it
will be in hold on condition. If the TIMER
setting is cancelled, the air-conditioner will
return to normal working condition

13
2. No Power Display
⑴Items
a) Check if the input voltage is correct?
b) Check if the AC power supply connecting is correct?
c) Check if the output voltage of the manostat L7805 (IC2) is correct?
⑵Trouble shooting procedure

14
connector (CN8)?
⑵Trouble shooting procedure
3. The Indoor Fan Motor Does Not Work
⑴Items
a) Check if the indoor fan motor is connected correctly to the connector (CN8)?
b) Check if the AC input voltage is correct?
c) Check if the IC of indoor fan motor is connected correctly to the connector
(CN2)?
d) Check if the capacity of indoor fan motor is connected correctly to the

15
4. The Outdoor Unit Does Not Work
⑴Items
a) Check if the input voltage is correct?
b) Check if the wire connection of the outdoor connecting terminal is correct?
⑵Trouble shooting procedure

16
5. The Step Motor Does Not Work
⑴Items
a) Check if the input voltage is correct?
b) Check if the step motor controlling the up-down movement firmly
connected to Cn2?
⑵Trouble shooting procedure

17
6. Heating Mode Can Work, But No Hot Air Blow
⑴Check if the set temperature is lower than the indoor temperature?
⑵Check if the indoor PCB is connected to the terminal correctly?

18
7. Remote Control Can Not Work
Trouble shooting rocedure