Mitsubishi Heavy Industries SRF25ZMXA-S User manual

RESIDENTIAL AIR-CONDITIONING
TECHNICAL MANUAL & PARTS LIST
FLOOR STANDING TYPE
RESIDENTIAL AIR-CONDITIONERS
(Split system, air to air heat pump type)
SRF25ZMXA-S
SRF35ZMXA-S
SRF50ZMXA-S
Manual No.'14•SRF-T-163

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1
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'14 • SRF-T-163
TECHNICAL MANUAL

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2
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'14 • SRF-T-163
gs32+4
CONTENTS
1. SPECIFICATIONS ........................................................................................ 4
(2) Outdoor units ....................................................................................... 8
..................................................... 19
2EMOTECONTROL ..................................................................................... 10
......................................................................... 7
(1) Indoor units .......................................................................................... 7
2. EXTERIOR DIMENSIONS
3. ELECTRICAL WIRING .............................................................................. 12
(1) Indoor units .......................................................................................... 12
4. NOISE LEVEL ............................................................................................ 15
(2) Outdoor units ....................................................................................... 13
6. RANGE OF USAGE & LIMITATIONS
................................................................................... 21
7. CAPACITY TABLES
5. PIPING SYSTEM ...................................................................................... 18
.................................................................................. 22
8. APPLICATION DATA
9. OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER ............... 42
4IMEROPERATION .................................................................................. 46
(9) !IROUTLETSELECTION 
............................... 43
/PERATIONCONTROLFUNCTIONBYWIRELESSREMOTECONTROL
&LAPCONTROL 
3ELECTIONOFTHEANNUALCOOLINGFUNCTION .............................................. 44
)NSTALLINGTWOAIRCONDITIONERSINTHESAMEROOM
......................................................................... 43!UTORESTARTFUNCTION
5NIT/./&&BUTTON ........................................................................... 43
....................... 42
3ILENTMODE .................................................................................... 46
$2%$ 
.IGHTSETBACK .................................................................................. 46
/UTLINEOFHEATINGOPERATION ................................................................ 46
/UTLINEOFDRYDEHUMIDIFYINGOPERATION ............................................. 49
/UTLINEOFCOOLINGOPERATION ............................................................... 48
)NSTALLATIONOFINDOORUNIT ...................................................................... 22
)NSTALLATIONOFOUTDOORUNIT .................................................................. 26
%CONOMYOPERATION .............................................................................. 44
(IGHPOWEROPERATION ........................................................................... 44
/UTLINEOFAUTOMATICOPERATION ........................................................... 49
0ROTECTIVECONTROLFUNCTION 

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3
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'14 • SRF-T-163
(10) How to make sure of wireless remote control ...................................... 77
(12) Outdoor unit inspection points .............................................................. 78
(11) Inspection procedure for blown fuse on the indoor and outdoor PCB .... 77
(8)
Phenomenon observed after shortcircuit, wire breakage on sensor ......... 75
(9) Checking the indoor electrical equipment ........................................... 75
■How to read the model name
Example: SRF 25 Z
Series code
Inverter type
Product capacity (Cooling capacity : 2.5kW)
Model name SRF : Floor standing type
SRC : Outdoor unit
MXA-S
........................................................................................... 81
11. OPTION PARTS
.............................................................. 81
..................................................................... 87
(1) Wired remote control (RC-E5)
(2) Interface kit (SC-BIKN-E)
(3) Super link E board (SC-ADNA-E) .......................................................... 91
(6) Service mode (Trouble mode access function) ................................... 62
(7) Inspection procedures corresponding to detail of trouble .................... 70
..................... 60
(4) Troubleshooting procedure (If the air conditioner runs)
(3) Troubleshooting procedure
(If the air conditioner does not run at all)
........ 59
(2) Items to check before troubleshooting ................................................. 59
(5) Self-diagnosis table ............................................................................. 61
............................................................................... 59
(1) Cautions ............................................................................................. 59
10. MAINTENANCE DATA

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4
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'14 • SRF-T-163
1. SPECIFICATIONS
RWB000Z056
Model
S-AXMZ52CRStinuroodtuOS-AXMZ52FRStinuroodnImetI
zH05,V042-022,esahP1ecruosrewoP
)).xaM(2.3-).niM(9.0(5.2)egnar(yticapacgnilooclanimoN
)).xaM(7.4-).niM(9.0(4.3)egnar(yticapacgnitaehlanimoN
)28.0-91.0(125.0gnilooCrewoP
)02.1-32.0(327.0gnitaeHnoitpmusnoc
07.1noitpmusnocrewopxaM
Running Cooling 2.6 / 2.5 / 2.4 (220/ 230/ 240 V
)
current Heating 3.6 / 3.4 / 3.3 (220/ 230/ 240 V
)
Inrush current, max current 3.6 / 3.4 / 3.3 (220/ 230/ 240 V), MAX
8
19gnilooC
rotcafrewoP 29gnitaeH
08.4gnilooCREE
07.4gnitaeHPOC
0615gnilooC
0615gnitaeH
Cooling Hi: 40 Me: 32 Lo: 29 ULo: 26 47
Heating Hi: 40 Me: 35 Lo: 33 ULo: 28 47
24:gnitaeH/14:gnilooClevelerusserpdnuosedomtneliS
Exterior dimensions (Height x Width x Depth) 600 x 860 x 238 595 x 780(+62) x 290
etihwoccutSwonseniFecnaraepparoiretxE
tnelaviuqeraen)1.1/5.7Y2.4(tnelaviuqeraen)1.0/3.9Y0.8()rolocllesnuM(
5381thgiewteN
1x)epytyratoR(1EDM7705B-MR
- yt'Q&epytrosserpmoC
)nevirdretrevnI(57.0
- )dohtemgnitratS(rotomrosserpmoC
)
86AMEZEERFDNOMAID(53.0 - )epyt,tnuomA(liotnaregirfeR
Refrigerant (Type, amount, pre-charge length) R410A 1.2 in outdoor unit (incl. the amount for the piping of 15m )
Heat exchanger Louver fins & inner grooved tubing M fins & inner grooved tubing
evlavnoisnapxecinortcelE+sebutyrallipaClortnoctnaregirfeR
Fan type & Q'ty Turbo fan x 1 Propeller fan x 1
)evirdtceriD(1x42)evirdtceriD(1x04)dohtemgnitratS(rotomnaF
Cooling Hi: 9.0 Me: 7.6 Lo: 6.7 ULo: 5.
8
29.5
Heating Hi: 10.5 Me: 8.2 Lo: 7.7 ULo: 6.
6
27.0
00erusserpcitatslanretxeelbaliavA
elbissoptoNekatniriaedistuO
1x)elbahsaw(tenenelyporpyloPytitnauQ/ytilauQ,retlifriA
Shock & vibration absorber Rubber sleeve (for fan motor)
Rubber sleeve (for fan motor & compressor)
retaehcirtcelE
lortnocetomersseleriWlortnocetomeR
tatsomrehtretupmocorciMlortnocerutarepmetmooR
Operation display
RUN: Green, TIMER: Yellow, HI POWER: Green, Air outlet selection: Green, ECONO: Green
Compressor overheat protection, Overcurrent protection,
Safety equipments Frost protection, Serial signal error protection, Indoor fan motor error protection,
Heating overload protection( High pressure control ), Cooling overload protection
:enildiuqiL)D.O(ezisgnipiptnaregirfeR 6.35 ( 1/4" ) Gas line: 9.52 ( 3/8" )
noitcennoceralFnoitcennoceralFdohtemgnitcennoC
gnipipfohtgneldehcattA
tnednepedni,)sedishtoB(yrasseceNgni
piprofnoitalusnI
51.xaMhtgnel)yaweno(eniltnaregirfeR
Vertical height diff. between O.U. and I.U
Max.10 ( Outdoor unit is higher ) / Max.10 ( Outdoor unit is lower )
seloH)61PV(elbatcennocesoHesohniarD φ20 x 2 pcs
thgiehtfilxam,pmupniarD
61ezisrekaerbdednemmoceR
L.R.A. (Locked rotor ampere) 3.6 / 3.4 / 3.3 (220/ 230/ 240 V
)
Interconnecting wires Size x Core number 1.5mm2x 4 cores ( Including earth cable ) / Terminal block ( Screw fixing type )
4XPI0XPIrebmunPI
Standard accessories
Mounting kit, Clean filter ( Natural Enzyme Filter x 1, Photocatalytic washable deodorizing filter x 1 )
)E-NKIB-CS(tikecafretnIstrapnoitpO
Note (1) The data are measured at the following conditions. The pipe length is 7.5m.
Item Indoor air temperature Outdoor air temperature
Operation DB WB DB WB
Cooling 27℃19℃35℃24℃
Heating 20℃ ー 7℃6℃
(2) This air-conditioner is manufactured and tested in conformity with the ISO.
(3) Sound level indicates the value in an anechoic chamber. During operation these values are somewhat
higher due to ambient conditions.
(4) Select the breaker size according to the own national standard.
(5) This air-conditioner is compliant with DRED (AS/NZS 4755.3.1) , and can operate with DRM1,2 or 3,
and is equipped with a terminal block for DRED.
dB(A)
Sound pressure level
kg
W
SRF25ZMXA-S
Operation
data
kW
kW
kW
A
％
Sound power level
mm
kg
kW
ℓ
ISO5151-T1
Air flow m3/min
Pa
Operation
control
Installation
data
mm
m
m
m
mm
A
A
Standards
φ φ
-
-
-
-
-
- -
- -

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5
-
'14 • SRF-T-163
Model
S-AXMZ53CRStinuroodtuOS-AXMZ53FRStinuroodnImetI
zH05,V042-022,esahP1ecruosrewoP
)).xaM(1.4-).niM(9.0(5.3)egnar(yticapacgnilooclanimoN
)).xaM(1.5-).niM(9.0(5.4)egnar(yticapacgnitaehlanimoN
91.0(098.0gnilooCrewoP 1.26 )
-
32.0(421.1gnitaeHnoitpmusnoc 1.43 )
48.1noitpmusnocrewopxaM
)V042/032/022(7.3/9.3/1.4gnilooCgninnuR
)V042/032/022(7.4/9.4/2.5gnitaeHtnerruc
8XA
M,)V042/032/022(7.4/9.4/2.5tnerrucxam,tnerruchsurnI
99gnilooC
rotcafrewoP 99gnitaeH
39.3gnilooCREE
00.4gnitaeHPOC
2625gnilooC
2625gnitaeH
Cooling Hi: 41 Me: 34 Lo: 33 ULo: 28 50
Heating Hi: 41 Me: 36 Lo: 35 ULo: 31 50
34:gnitaeH/54:gnilooClevelerusserpdnuosedomtneliS
Exterior dimensions (Height x Width x Depth) 600 x 860 x 238 595 x 780(+62) x 290
etihwoccutSwonseniFecnaraepparoiretxE
tnelaviuqeraen)1.1/5.7Y2.4(tnelaviuqeraen)1.0/3.9Y0.8()rolocllesnuM(
5391thgiewteN
1x)epytyratoR(1EDM7705B-MR
- yt'Q&epytrosserpmoC
)nevirdretrevnI(09.0)dohtemgnitratS(rotomrosserpmoC
)86AMEZEERFDNOMAID(53.0)epyt,tnuomA(liotnaregirfeR
Refrigerant (Type, amount, pre-charge length) R410A 1.2 in outdoor unit (incl. the amount for the piping of 15m )
Heat exchanger Louver fins & inner grooved tubing M fins & inner grooved tubing
evlavnoisnapxecinortcelE+sebutyrallipaClortnoctnaregirfeR
1xnafrelleporP1xnafobruTyt'Q&epytnaF
)evirdtceriD(1x42)evirdtceriD(1x04)dohtemgnitratS(rotomnaF
Cooling Hi: 9.2 Me: 7.8 Lo: 7.3 ULo: 6.4 32.5
Heating Hi: 10.7 Me: 8.3 Lo: 8.1 ULo: 7.4 29.5
00erusserpcitatslanretxeelbaliavA
- elbissoptoNekatniriaedistuO
1x)elbahsaw(te
nenelyporpyloPytitnauQ/ytilauQ,retlifriA
)rotomnafrof(eveelsrebbuRrebrosbanoitarbiv&kcohS
Rubber sleeve (for fan motor & compressor)
retaehcirtcelE
lortnocetomersseleriWlortnocetomeR
tatsomrehtretupmocorciMlortnocerutarepmetmooR
Operation display
RUN: Green, TIMER: Yellow, HI POWER: Green, Air outlet selection: Green, ECONO: Green
Compressor overheat protection, Overcurrent protection,
Safety equipments Frost protection, Serial signal error protection, Indoor fan motor error protection,
Heating overload protection( High pressure control ), Cooling overload protection
:enildiuqiL)D.O(ezisgnipiptnaregirfeR 6.35 ( 1/4" ) Gas line: 9.52 ( 3/8" )
noitcennoceralFnoitcennoceralFdohtemgnitcennoC
gnipipfohtgneldehcattA
tnednepedni,)sedishtoB(yrasseceNgnipiprofnoitalusnI
51.xaMhtgnel)y
aweno(eniltnaregirfeR
Vertical height diff. between O.U. and I.U
Max.10 ( Outdoor unit is higher ) / Max.10 ( Outdoor unit is lower )
seloH)61PV(elbatcennocesoHesohniarD φ20 x 2 pcs
thgiehtfilxam,pmupniarD
61ezisrekaerbdednemmoceR
)V042/032/022(7.4/9.4/2.5)erepmarotordekcoL(.A.R.L
Interconnecting wires Size x Core number 1.5mm2x 4 cores ( Including earth cable ) / Terminal block ( Screw fixing type )
4XPI0XPIrebmunPI
Standard accessories
Mounting kit, Clean filter ( Allergen clear filter x 1, Photocatalytic washable deodorizing filter x 1 )
)E-NKIB-CS(tikecafretnIstrapnoitpO
Note (1) The data are measured at the following conditions. The pipe length is 7.5m.
Item Indoor air temperature Outdoor air temperature
Operation DB WB DB WB
Cooling 27℃19℃35℃24℃
Heating 20℃ ー 7℃6℃
(2) This air-conditioner is manufactured and tested in conformity with the ISO.
(3) Sound level indicates the value in an anechoic chamber. During operation these values are somewhat
higher due to ambient conditions.
(4) Select the breaker size according to the own national standard.
(5) This air-conditioner is compliant with DRED (AS/NZS 4755.3.1) , and can operate with DRM1,2 or 3,
and is equipped with a terminal block for DRED.
dB(A)
Sound pressure level
kg
W
SRF35ZMXA-S
Operation
data
kW
kW
kW
A
％
Sound power level
mm
kg
kW
ℓ
ISO5151-T1
Air flow m3/min
Pa
Operation
control
Installation
data
mm
m
m
m
mm
A
A
Standards
φ φ
-
-
-
--
--
--
-
-
RWB000Z056

-
6
-
'14 • SRF-T-163
Model
S-AXMZ05CRStinuroodtuOS-AXMZ05FRStinuroodnImetI
zH05,V042-022,esahP1ecruosrewoP
)).xaM(2.5-).niM(1.1(0.5)egnar(yticapacgnilooclanimoN
)).xaM(9.6-).niM(6.0(0.6)egnar(yticapacgnitaehlanimoN
2.0(093.1gnilooCrewoP 1.70 )
2.0(045.1gnitaeHnoitpmusnoc 2.15 )
04.3noitpmusnocrewopxaM
)V042/032/022(8.5/1.6/4.6gnilooCgninnuR
)V042/032/022(5.6/8.6/1.7gnitaeHtnerruc
51XAM
,)V042/032/022(5.6/8.6/1.7tnerrucxam,tnerruchsurnI
99gnilooC
rotcafrewoP 99gnitaeH
06.3gnilooCREE
09.3gnitaeHPOC
3685gnilooC
2685gnitaeH
2523:oLU53:oL24:eM64:iHgnilooC
1533:oLU93:oL14:eM74:iHgnitaeH
54:gnitaeH/54:gnilooClevelerusserpdnuosedomtneliS
Exterior dimensions (Height x Width x Depth) 600 x 860 x 238 640 x 800(+71) x 290
etihwoccutSwonseniFecnaraepparoiretxE
tnelaviuqeraen)1.1/5.7Y2.4(tnelaviuqeraen)1.0/3.9Y0.8()rolo
cllesnuM(
5491thgiewteN
1x)epytyratoRniwT(2ECM3115TMR
- yt'Q&epytrosserpmoC
)nevirdretrevnI(05.1)dohtemgnitratS(rotomrosserpmoC
)86AMEZEERFDNOMAID(54.0)epyt,tnuomA(liotnaregirfeR
Refrigerant (Type, amount, pre-charge length) R410A 1.5 in outdoor unit (incl. the amount for the piping of 15m )
Heat exchanger Louver fins & inner grooved tubing M fins & inner grooved tubing
evlavnoisnapxecinortcelE+sebutyrallipaClortnoctnaregirfeR
1xnafrelleporP1xnafobruTyt'Q&epytnaF
)evirdtceriD(1x43)evirdtceriD(1x04)dohtemgnitratS(rotomnaF
Cooling Hi: 11.5 Me: 9.6 Lo: 7.4 ULo: 6.6 36.0
Heating Hi: 12.0 Me: 10.0 Lo: 9.4 ULo: 7.6 33.0
00erusserp
citatslanretxeelbaliavA
- elbissoptoNekatniriaedistuO
- 1x)elbahsaw(tenenelyporpyloPytitnauQ/ytilauQ,retlifriA
Rubber sleeve (for fan motor)rebrosbanoitarbiv&kcohS Rubber sleeve (for fan motor & compressor)
-- retaehcirtcelE
lortnocetomersseleriWlortnocetomeR
tatsomrehtretupmocorciMlortnocerutarepmetmooR
Operation display
RUN: Green, TIMER: Yellow, HI POWER: Green, Air outlet selection: Green, ECONO: Green
Compressor overheat protection, Overcurrent protection,
Safety equipments Frost protection, Serial signal error protection, Indoor fan motor error protection,
Heating overload protection( High pressure control ), Cooling overload protection
:enildiuqiL)D.O(ezisgnipiptnaregirfeR 6.35 ( 1/4" ) Gas line: 12.7 ( 1/2" )
noitcennoceralFnoitcennoceralFdohtemgnitcennoC
-- gnipipfohtgneldehcattA
tnednepedni,)sedi
shtoB(yrasseceNgnipiprofnoitalusnI
03.xaMhtgnel)yaweno(eniltnaregirfeR
Vertical height diff. between O.U. and I.U
Max.20 ( Outdoor unit is higher ) / Max.20 ( Outdoor unit is lower )
seloH)61PV(elbatcennocesoHesohniarD φ20 x 5 pcs
thgiehtfilxam,pmupniarD
61ezisrekaerbdednemmoceR
)V042/032/022(5.6/8.6/1.7)erepmarotordekcoL(.A.R.L
Interconnecting wires Size x Core number 1.5mm2x 4 cores ( Including earth cable ) / Terminal block ( Screw fixing type )
4XPI0XPIrebmunPI
Standard accessories
Mounting kit, Clean filter ( Allergen clear filter x 1, Photocatalytic washable deodorizing filter x 1 )
)E-NKIB-CS(tikecafretnIstrapnoitpO
Note (1) The data are measured at the following conditions. The pipe length is 7.5m.
Item Indoor air temperature Outdoor air temperature
Operation DB WB DB WB
Cooling 27℃19℃35℃24℃
Heating 20℃ ー 7℃6℃
(2) This air-conditioner is manufactured and tested in conformity with the ISO.
(3) Sound level indicates the value in an anechoic chamber. During operation these values are somewhat
higher due to ambient conditions.
(4) Select the breaker size according to the own national standard.
(5) This air-conditioner is compliant with DRED (AS/NZS 4755.3.1) , and can operate with DRM1,2 or 3,
and is equipped with a terminal block for DRED.
A
Standards
ISO5151-T1
Air flow m3/min
Pa
Operation
control
Installation
data
kg
W
mm
A
mm
kg
kW
ℓ
mm
m
m
m
SRF50ZMXA-S
Operation
data
kW
kW
kW
A
％
Sound power level
dB(A)
Sound pressure level
φ φ
-
-
--
-
-
-
RWB000Z056

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7
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'14 • SRF-T-163
2. EXTERIOR DIMENSIONS
(1) Indoor units
Models SRF25ZMXA-S, 35ZMXA-S, 50ZMXA-S
RFB000Z006
D E
G
A B C F
F
FF
600
Unit:mm
Hole on wall for right rear piping Hole on wall for left rear piping Gas piping Drain hose Liquid piping
F E C D B
Symbol
A
（䃥65）
VP16
䃥6.35（1／4"）（Flare）
Content
（䃥65）
25,35 : 䃥9.52（3／8"）（Flare）
50 : 䃥12.7（1／2"）（Flare）
Model
Outlet for piping（on both side）
Outlet for down piping
（Refer to the above view）
Space for installation and service when viewing from the front
（Option）
Wired remote controlWireless remote control
G
Screw point fasten the indoor unit 䃥5
860 238
15 60
60
100 60
55
157.276.3 85.3 22.7
185
25.530.5
198
804 6565
45
585
30.5 103.5
585
45
83.5 620 156.5
5.2
726
Notes
（1）The model name label is attached on the rightside of the unit.
（2）It takes the interface kit（SC-BIKN-E）to connect the wired remote control.
（3）In case of wall installation, leave the unit 150mm or less from the floor.
514.8 80
211.5255255138.5
544.8 20
482.8
156.2
203
50
70
1084010
50+Service space
（Service space）
35
（Service space）
125
6
100
12
Unit
Installation plate
Ƒ 19
60 24
167

-
8
-
'14 • SRF-T-163
(2) Outdoor units
Models SRC25ZMXA-S, 35ZMXA-S
RCV000Z018
63.469.4
290
390.6 50.6
12
E
D
111.6
390.6
510
780
158.4
14.8
17.9
61.9
312.5 24.3
351.6
φ
9.52（3／8"）（Flare）
Content
CPipe／cable draw-out hole
EAnchor bolt hole
Drain discharge hole
Symbol
B AService valve connection（gas side）
M10×4places
Service valve connection（liquid side）φ
6.35（1／4"）（Flare）
Dφ
20×2places
595
15.8
97.7 42.5
138.4
B
Terminal block
Terminal block
（For DRED AS／NZS 4755）
33.5
C
40°
40°
A
Notes
（1）It must not be surrounded by walls on the four sides. （2）The unit must be fixed with anchor bolts. An anchor bolt must not
protrude more than 15mm.
（3）Where the unit is subject to strong winds, lay it in such
a direction that the blower outlet faces perpendicularly to the dominant wind direction.
（4）Leave 1m or more space above the unit. （5）A wall in front of the blower outlet must not exceed the units height. （6）The model name label is attached on the lower right corner of the front panel.
Service space
L2
Intake
Intake L3
Outlet L1
L4
Minimum installation space
Examples of
installation
Dimensions
L2 L3 L4 L1
Ｉ ＩＩ ＩＩＩ ＩＶ
100 100 250
Open 280
Open
80 75 Open
250
80
280 180
Open
80
Open
Unit:mm