Mitsubishi Electric MSH09TW User manual

SERVICE MANUAL
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
CONTENTS
1. FEATURES·························································2
2. TECHNICAL CHANGES ····································5
3. PART NAMES AND FUNCTIONS······················7
4. INDOOR UNIT COMBINATION························10
5. SPECIFICATION···············································11
6. DATA·································································17
7. OUTLINES AND DIMENSIONS ·······················39
8. WIRING DIAGRAM ··········································43
9. REFRIGERANT SYSTEM DIAGRAM··············51
10. MICROPROCESSOR CONTROL ····················54
11. SERVICE FUNCTIONS·····································72
12. TROUBLESHOOTING······································75
13. DISASSEMBLY INSTRUCTIONS···················101
14. PARTS LIST····················································114
15. OPTIONAL PARTS·········································126
Wireless type
Models
MSH09TW · MUH09TW
MSH12TN · MUH12TN
MSH15TN · MUH15TN
MSH17TN · MUH17TN
MSH09TW
- · MUH09TW -
MSH12TN - · MUH12TN -
· MUH12TN -
MSH15TN - · MUH15TN -
· MUH15TN -
MSH17TN - · MUH17TN -U1U1 U2
U1U1 U2
U1U1 U1U1
No. OB275
REVISED EDITION-D
The Slim Line.
From Mitsubishi Electric.
L
I
S
T
E
D
CUS
MSH12TN
MSH15TN
MSH17TN
INDOOR UNIT
MUH15TN
OUTDOOR UNIT
Remote
controller
MSH12TN -
MSH15TN -
MSH17TN -U1
U1
U1
MUH15TN -MUH15TN -U2U1 TM
Inverter-controlled multi system Model
· MXZ30TN
· MXZ30TN2
Revision:
●MUH12TN- has been added.
●MUH15TN- has been added.
●REFRIGERANT SYSTEM DIAGRAM of
MXZ30TN and MXZ30TN2 has partly been
changed.
●PARTS LIST of MXZ30TN and MXZ30TN2
has partly been changed
●Please void OB275 Revised edition-C.
U2
U2
Indication of
model name
Indication of
model name
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2
FEATURES
1
MSH12TN -
MSH15TN -
MSH17TN -
U1
U1
U1
MSH12TN
MSH15TN
MSH17TN
MSH09TW MSH09TW - U1 MUH09TW MUH09TW - U1
MUH15TN - U1
MUH15TN - U2
U1
MUH15TN
MUH17TN - U1 MUH17TN
MXZ30TN MXZ30TN2
LCD wireless
remote controller
MUH12TN MUH12TN-
U2
MUH12TN-
USA Remark
MSH09TW
MSH12TN
MSH15TN
MSH17TN
No
40min.
27˚F
38˚F
CANADA
RT63(Outdoor):
for protection in low ambient temperature
Refer to
U1
U1
U1
U1
DIFFERENT POINTS between models for USA and CANADA
AMBIENT
TEMPERATURE
THERMISTOR
INTERVAL
TIME
START
TEMPERATURE
FINISH
TEMPERATURE
DEFROSTING
Have
15min.
32˚F
50˚F
8. WIRING DIAGRAM
10. MICRO PROCESSOR CONTROL
10-1. -HEAT mode of "I FEEL CONTROL"-
5. Outdoor temperature control(P. 60)
10. MICRO PROCESSOR CONTROL
10-1. -HEAT mode of "I FEEL CONTROL"-
3. Defrosting (P.59)
11. SERVICE FUNCTIONS
11-2. CHANGE IN DEFROST SETTING(P.72)
for protection in low ambient temperature
MSH09TW -
MSH12TN -
MSH15TN -
MSH17TN -
Model
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3
“I FEEL CONTROL” IN OUR LCD WIRELESS REMOTE CONTROLLER WITH ON/OFF PROGRAM TIMER
Mitsubishi Electric’s new wireless remote controller incorporates a number of advanced features that provide even greater con-
trol and ease-to-use. It has a liquid crystal display which indicates such information as mode, fan speed and temperature
selected as well as the programmed ON/OFF timer. It is also equipped with “I Feel Control”, a unique Mitsubishi Electric fea-
ture that allows the user to adjust the temperature to exactly the level he or she wants simply by tapping the button that
describes present conditions : “Too Cool” or “Too Warm”. The optimum temperature set this way is then memorized for immedi-
ate recall whenever the air conditioner is used again.
Select desired air flow direction.
REMOTE-CONTROL OPERATION MODE
Using the remote controller, you can select from five airflow set-
tings to match room layout and the location of people. Also, you
can set the vane to swing automatically.
AUTO-RESTART FUNCTION
The auto-restart function restarts the equipment when power is
restored following an outage automatically. Operation resumes in
the mode in which the equipment was running immediately before
the outage.
HIGH PERFORMANCE ROTARY COMPRESSOR
The advanced design of Mitsubishi Electric’s powerful and energy
efficient rotary compressor results in lower operating costs and
longer service life.
SWING
Model Cooling capacity Heating capacity SEER HSPF(44/55)
MSH09TW MSH09TW - 8,800Btu/h 10,500Btu/h 10.0 6.8/5.9
MSH12TN MSH12TN - 12,600/12,900Btu/h 13,000/13,500Btu/h 10.2 6.8/5.9
MSH15TN MSH15TN - 14,300/14,600Btu/h 14,500/14,800Btu/h 10.7 6.8/5.9
MSH17TN MSH17TN - 16,000/16,200Btu/h 16,800/17,200Btu/h 10.4 6.8/5.9
U1
U1
U1
U1
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4
Extra Energy Savings
For optimum performance inverter technology controls the electrical current to the compressor, delivering only the energy
needed to match the cooling and heat load of a room. This feature reduces energy consumption.
Inverter Technology
Outdoor unit uses inverter compressor technology (Variable Frequency Drive) to provide exceptional indoor high-speed
cooling and heating.
By responding to indoor temperature changes, the system reduces power consumption by varying the compressor speed for
extra energy savings and performs only to the levels needed to maintain a constant and comfortable indoor environment.
High-Speed Heating and Cooling
Compressor rotation is controlled to maximize
efficiency, changing speeds according to the cooling
and heating load of a room. This application means
the desired temperature is reached much faster.
Optimum Comfort Year-Round
Unlike conventional units that start and stop repetitively,
inverter units are able to detect subtle changes in room
temperature and adjust airflow automatically. This adaptation
means less temperature variation and more comfortable rooms.
Time
Set Temperature
Conventional
model
Inverter model
MXZ30TN MXZ30TN2
Time
Set Temperature
Conventional Model:
Temperature are
adjusted by switching the
compressor off and on.
Inverter Model:
Uniform temperatures are
maintained by finely tuned
control of compressor speed.
Optimum Comfort in Any Situation
Model Cooling capacity Heating capacity SEER HSPF(44)
MXZ30TN MXZ30TN2 28,400Btu/h
(4,160 - 30,500) 28,600Btu/h (5,790 - 38,000) 11.0 7.5
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5
TECHNICAL CHANGES
2
MSH09NW2 ➔ MSH09TW
1. Indoor unit has changed.
2. Remote controller has changed.
MSH12NN2 ➔ MSH12TN
1. Remote controller has changed.
2. Union size of connect pipe for gas has changed.
MSH15NN2 ➔ MSH15TN
MSH17NN2 ➔ MSH17TN
1. Remote controller has changed.
MUH09NW2 ➔ MUH09TW
1. Outdoor unit has changed.
MUH12NN2 ➔ MUH12TN
1. Outdoor unit has changed.
MUH15NN2 ➔ MUH15TN
1. Only model name has changed.
MUH17NN2 ➔ MUH17TN
1. Valve type has changed (Size for connecting pipe is the same).
MSH09NW2 - ➔ MSH09TW -
1. Indoor unit has changed.
2. Remote controller has changed.
MSH12NN2 - ➔ MSH12TN -
1. Remote controller has changed.
2. Union size of connect pipe for gas has changed.
MSH15NN2 - ➔ MSH15TN -
MSH17NN2 - ➔ MSH17TN -
1. Remote controller has changed.
MUH09NW2 - ➔ MUH09TW -
1. Outdoor unit has changed.
MUH12NN2 - ➔ MUH12TN -
1. Outdoor unit has changed.
MUH15NN2 - ➔ MUH15TN -
1. Only model name has changed.
MUH17NN2 - ➔ MUH17TN -
1. Valve type has changed (Size for connecting pipe is the same).
MXZ30TN
1. New model.
U1U1
U1U1
U1U1
U1U1
U1U1
U1U1
U1U1
U1U1
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