Mitsubishi Electric MUZ-FD25VA-E1 User manual

SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGES ····································3
2. PART NAMES AND FUNCTIONS······················3
3. SPECIFICATION·················································4
4. NOISE CRITERIA CURVES·······························6
5. OUTLINES AND DIMENSIONS ·························7
6. WIRING DIAGRAM ············································8
7. REFRIGERANT SYSTEM DIAGRAM··············10
8. PERFORMANCE CURVES······························11
9. ACTUATOR CONTROL····································22
10. SERVICE FUNCTIONS·····································23
11. TROUBLESHOOTING······································23
12. DISASSEMBLY INSTRUCTIONS·····················39
Wireless type
Models
SPLIT-TYPE, HEAT PUMPAIR CONDITIONERS
MUZ-FD25VA -
MUZ-FD25VAH -
MUZ-FD35VA -
MUZ-FD35VAH - E1
E1
E1
E1
NOTE:
RoHS compliant products have <G> mark on the spec name plate.
HFC
utilized
R410A
No. OBH489
OUTDOOR UNIT
Indoor unit service manual
MSZ-FD•VA Series (OBH488)
PARTS CATALOG (OBB489)
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TECHNICAL CHANGES
1
PART NAMES AND FUNCTIONS
2
ACCESSORIES
Air outlet
Drain outlet
Piping
Drain hose
Air inlet
MUZ-FD25/35VA
1Drain socket 1
MUZ-FD25VA
MUZ-FD25VAH
MUZ-FD35VA
MUZ-FD35VAH
MUZ-FD25VA -
MUZ-FD25VAH -
MUZ-FD35VA -
MUZ-FD35VAH - E1
E1
E1
E1
1.New model
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3SPECIFICATION
3.2 (1.5-5.5)
MUZ-FD25VA
3.5 (1.1-4.0)
4.0 (1.5-6.3)
850
865
3.9
4.0
95
94
4.0
4.12
4.62
3.31
3.33
4.0 (1.3-7.7)
835
850
3.8
3.9
96
95
3.9
4.19
4.71
3.21
3.23
Power outlet
Power input ✽1
(Total)
Running current ✽1 (Total)
Power factor ✽1 (Total)
Starting current ✽1 (Total)
kW
A
W
A
%
A
W
A
A
mm
kg
r/h
K/h
dB(A)
rpm
kg
Compressor
Special remarks
Coefficient of performance(C.O.P) ✽1(Total)
Electrical data
MUZ-FD35VA
MUZ-FD25VAH MUZ-FD35VAH
Single phase
230 V, 50 Hz
15
SNB130FGBH
900
RC0J50-EA
800o550o285
36
2,016/1,776/1,386
870/770/610
3
1.15
NEO22
Power supply
Outdoor model
Capacity Rated frequency(Min.-Max.)
Cooling
Heating
Cooling
Heating
Cooling
Heating
Cooling
Heating
Cooling
Heating
Cooling
Heating
Cooling
Heating
Cooling
Cooling
Heating
Cooling
Heating
Cooling
Heating
Dehumidification
Air flow ✽1 (High/Low)
(High/Med./Low)
Sound level ✽1
Fan speed (High/Low)
(High/Med./Low)
Fan speed regulator
Refrigerant filling capacity(R410A)
Refrigeration oil (Model)
Dimensions WOHOD
Weight
Fan motor Model
Current ✽1
Model
Output
Current ✽1
2.5 (1.1-3.5)
485
610
2.4
2.9
88
91
2.9
5.15
5.25
1.88
2.30
0.27
0.30
1.4
1,872/1,086
46
810/490
3.2 (1.5-6.3)
0.32
0.35
2.0
1,872/1,086
47
50
810/490
3.5(0.8-4.0)
NOTE : Test conditions are based on ISO 5151
Cooling : Indoor Dry-bulb temperature 27 :Wet-bulb temperature 19 :
Outdoor Dry-bulb temperature 35 :
Heating : Indoor Dry-bulb temperature 20 :
Outdoor Dry-bulb temperature 7 :Wet-bulb temperature 6 :
Refrigerant piping length (one way): 5 m
✽1 Measured under rated operating frequency
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Model
Item
Current
transformer
Smoothing capacitor
Diode module
Fuse
Defrost heater
Intelligent power module
Expansion valve coil
Reactor
Current-detecting
resistor
Current-limiting PTC thermistor
Terminal block
Relay
R.V.coil
Heater protector
IGBT
MUZ-FD25VA
(CT)
(CT761, CT781)
(C61, C62, C63)
(DB61)
(DB65)
(F61)
(F701,F801,F901)
(H)
(IPM)
(LEV)
(L61)
(R61,R62)
(R825)
(R937,R938,R939)
(PTC64,PTC65)
(TB1,TB2)
(X63)
(X64)
(X66)
(21S4)
(26H)
(TR821)
MUZ-FD25VAH MUZ-FD35VA MUZ-FD35VAH
—
—
—
230 V 130 W
3 A 250 V
Open 45 :
—
—
—
230 V 130 W
3 A 250 V
Open 45 :
20 A
15 A
620 + 420 V
15 A 600 V
25 A 600 V
T20AL250V
T3.15AL250V
20 A 600 V
DC 12 V
23.0 mH
180 m"5 W (2 elements)
25 m"5 W
430 m"2 W
33 "
3P
3 A 250 V
20 A 250 V
AC 220 - 240 V
30 A 600 V
Specifications and rating conditions of main electric parts
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4NOISE CRITERIA CURVES
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
BAND CENTER FREQUENCIES, Hz
COOLING
FUNCTION SPL(dB(A)) LINE
HEATING 46
NC-10
MUZ-FD25VA
MUZ-FD25VAH
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
BAND CENTER FREQUENCIES, Hz
COOLING
FUNCTION SPL(dB(A)) LINE
HEATING
47
50
Test conditions
Cooling : Dry-bulb temperature 35 :
Heating : Dry-bulb temperature 7 : Wet-bulb temperature 6 :
OUTDOOR UNIT
MICROPHONE
1 m
NC-10
MUZ-FD35VA
MUZ-FD35VAH
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OUTLINES AND DIMENSIONS
5
Unit: mm
MUZ-FD25VA
MUZ-FD25VAH
MUZ-FD35VA
MUZ-FD35VAH
10
69
800
302.5
500 Bolt pitch for installation
150
22.3
Handle
550
280
164.5
99.5
170.5
23 Service panel
Service port
285
344.5
44
400
Air in
Air out
Air in
17.5
Bolt pitch for
installation
304~325
40
Liquid refrigerant pipe joint
Refrigerant pipe (flared) [6.35
Gas refrigerant pipe joint
Refrigerant pipe (flared) [9.52
43-
35-
2 holes 10 X 21
Drain hole [33 (FD25/35VAH)
REQUIRED SPACE Basically open 100 mm or more
without any obstruction in front
and on both sides of the unit.
350 mm or more
200 mm or more
100 mm or more
100 mm or more
Open two sides of left,
right, or rear side.
Drain hole [42 (FD25/35VA)
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6WIRING DIAGRAM
MUZ-FD25VA
MUZ-FD35VA
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MUZ-FD25VAH
MUZ-FD35VAH
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7REFRIGERANT SYSTEM DIAGRAM
Unit:mm
MUZ-FD25VA
MUZ-FD25VAH
MUZ-FD35VA
MUZ-FD35VAH
Outdoor
heat
exchanger
Flared connection
Defrost
thermistor
RT61
Discharge
temperature
thermistor
RT62
Flared connection
Stop valve
(with strainar)
Stop valve
(with service port)
Refrigerant flow in cooling
Compressor
4-way valve
Refrigerant flow in heating
Refrigerant pipe [9.52
(with heat insulator)
Refrigerant pipe [6.35
(with heat insulator)
R.V. coil
heating ON
cooling OFF
Strainer
#100
Capillary tube
[3.0✕[1.8✕600(✕2)
LEV
Ambient
temperature
thermistor
RT65
Muffler
Capillary tube
[3.0✕[2.0✕240
Outdoor heat
exchanger
temperature
thermistor
RT68
Muffler
ADDITIONAL REFRIGERANT CHARGE (R410A:g)
Outdoor unit
precharged 14m7m6m5m 11m
Model Refrigerant piping length (one way)
8m 9m 10m 12m 13m 15m 20m
27000
0180
90 120 150 210 240 300 450
1,150
MUZ-FD25VA
MUZ-FD25VAH
MUZ-FD35VA
MUZ-FD35VAH
Max. length
A
Max. Height
difference
B
Indoor
unit
Outdoor unit
MAX. REFRIGERANT PIPING LENGTH and MAX. HEIGHT DIFFERENCE
Max. length
A
20
Max. Height difference
B
12
Model Gas
9.52
Liquid
6.35
Piping size O.D : mm
Refrigerant piping : m
MUZ-FD25VA
MUZ-FD25VAH
MUZ-FD35VA
MUZ-FD35VAH
Calculation : Xg=30 g/m ✕ (Refrigerant piping length (m)–7)
NOTE: Refrigerant piping exceeding 7 m requires additional refrigerant charge according to the calculation.
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