Mitsubishi Electric PUMY-P112VKM4 Operating manual

TECHNICAL & SERVICE MANUAL
OUTDOOR UNIT
HFC
utilized
R410A
June 2020
Model name
indication PARTS CATALOG (OCB673)
CONTENTS
TECHNICAL CHANGES.........................................2
1. SAFETY PRECAUTION .....................................3
2. OVERVIEW OF UNITS.......................................6
3. SPECIFICATIONS ............................................ 11
4. DATA.................................................................14
5. OUTLINES AND DIMENSIONS .......................28
6. WIRING DIAGRAM...........................................31
7. NECESSARY CONDITIONS FOR SYSTEM CONSTRUCTION....... 36
8. TROUBLESHOOTING......................................54
9. ELECTRICAL WIRING ...................................135
10. REFRIGERANT PIPING TASKS ....................141
11. DISASSEMBLY PROCEDURE.......................148
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
No. OCH673
REVISED EDITION-D
<Outdoor unit>
[Model Name]
Salt proof model
PUMY-P112VKM4 PUMY-P112VKM4R1
PUMY-P125VKM4 PUMY-P125VKM4R1
PUMY-P140VKM4 PUMY-P140VKM4R1
PUMY-P112YKM4 PUMY-P112YKM4R1
PUMY-P112YKM4R2 PUMY-P112YKM4-ETR2 PUMY-P112YKM4-ERR2
PUMY-P125YKM4 PUMY-P125YKM4R1
PUMY-P125YKM4R2 PUMY-P125YKM4-ETR2 PUMY-P125YKM4-ERR2
PUMY-P140YKM4 PUMY-P140YKM4R1
PUMY-P140YKM4R2 PUMY-P140YKM4-ETR2 PUMY-P140YKM4-ERR2
PUMY-P112YKME4 PUMY-P112YKME4R1 PUMY-P112YKME4R2
PUMY-P125YKME4 PUMY-P125YKME4R1 PUMY-P125YKME4R2
PUMY-P140YKME4 PUMY-P140YKME4R1 PUMY-P140YKME4R2
PUMY-P112VKM4-BS PUMY-P112VKM4R1-BS
PUMY-P125VKM4-BS PUMY-P125VKM4R1-BS
PUMY-P140VKM4-BS PUMY-P140VKM4R1-BS
PUMY-P112YKM4-BS PUMY-P112YKM4R1-BS
PUMY-P112YKM4-BSR2 PUMY-P112YKM4-ETBSR2 PUMY-P112YKM4-ERBSR2
PUMY-P125YKM4-BS PUMY-P125YKM4R1-BS
PUMY-P125YKM4-BSR2 PUMY-P125YKM4-ETBSR2 PUMY-P125YKM4-ERBSR2
PUMY-P140YKM4-BS PUMY-P140YKM4R1-BS
PUMY-P140YKM4-BSR2 PUMY-P140YKM4-ETBSR2 PUMY-P140YKM4-ERBSR2
PUMY-P112YKME4-BS PUMY-P112YKME4R1-BS PUMY-P112YKME4-BSR2
PUMY-P125YKME4-BS PUMY-P125YKME4R1-BS PUMY-P125YKME4-BSR2
PUMY-P140YKME4-BS PUMY-P140YKME4R1-BS PUMY-P140YKME4-BSR2
[Service Ref.]
OCB673 REVISED EDITION-C
is void.
PUMY-P112VKM4
PUMY-P125VKM4
PUMY-P140VKM4
PUMY-P112YKM4
PUMY-P125YKM4
PUMY-P140YKM4
PUMY-P112YKME4
PUMY-P125YKME4
PUMY-P140YKME4
PUMY-P112VKM4-BS
PUMY-P125VKM4-BS
PUMY-P140VKM4-BS
PUMY-P112YKM4-BS
PUMY-P125YKM4-BS
PUMY-P140YKM4-BS
PUMY-P112YKME4-BS
PUMY-P125YKME4-BS
PUMY-P140YKME4-BS
Revision:
•PUMY-P112YKM4(-BS)R2,
PUMY-P125YKM4(-BS)R2,
PUMY-P140YKM4(-BS)R2,
PUMY-P112YKM4-ET(BS)R2,
PUMY-P125YKM4-ET(BS)R2,
PUMY-P140YKM4-ET(BS)R2,
PUMY-P112YKM4-ER(BS)R2,
PUMY-P125YKM4-ER(BS)R2,
PUMY-P140YKM4-ER(BS)R2,
PUMY-P112YKME4(-BS)R2,
PUMY-P125YKME4(-BS)R2 and
PUMY-P140YKME4(-BS)R2
have been added
in REVISED EDITION-D.
• Some descriptions have been
modified.

32
OCH673D
TECHNICAL CHANGES
• Some connectable indoor units have been added.
• Some connectable indoor units have been added.
PUMY-P112VKM4 PUMY-P112VKM4R1
PUMY-P125VKM4 PUMY-P125VKM4R1
PUMY-P140VKM4 PUMY-P140VKM4R1
PUMY-P112YKM4 PUMY-P112YKM4R1
PUMY-P125YKM4 PUMY-P125YKM4R1
PUMY-P140YKM4 PUMY-P140YKM4R1
PUMY-P112YKME4 PUMY-P112YKME4R1
PUMY-P125YKME4 PUMY-P125YKME4R1
PUMY-P140YKME4 PUMY-P140YKME4R1
PUMY-P112VKM4-BS PUMY-P112VKM4R1-BS
PUMY-P125VKM4-BS PUMY-P125VKM4R1-BS
PUMY-P140VKM4-BS PUMY-P140VKM4R1-BS
PUMY-P112YKM4-BS PUMY-P112YKM4R1-BS
PUMY-P125YKM4-BS PUMY-P125YKM4R1-BS
PUMY-P140YKM4-BS PUMY-P140YKM4R1-BS
PUMY-P112YKME4-BS PUMY-P112YKME4R1-BS
PUMY-P125YKME4-BS PUMY-P125YKME4R1-BS
PUMY-P140YKME4-BS PUMY-P140YKME4R1-BS
PUMY-P112YKM4R1 PUMY-P112YKM4R2
PUMY-P125YKM4R1 PUMY-P125YKM4R2
PUMY-P140YKM4R1 PUMY-P140YKM4R2
PUMY-P112YKME4R1 PUMY-P112YKME4R2
PUMY-P125YKME4R1 PUMY-P125YKME4R2
PUMY-P140YKME4R1 PUMY-P140YKME4R2
PUMY-P112YKM4R1-BS PUMY-P112YKM4-BSR2
PUMY-P125YKM4R1-BS PUMY-P125YKM4-BSR2
PUMY-P140YKM4R1-BS PUMY-P140YKM4-BSR2
PUMY-P112YKME4R1-BS PUMY-P112YKME4-BSR2
PUMY-P125YKME4R1-BS PUMY-P125YKME4-BSR2
PUMY-P140YKME4R1-BS PUMY-P140YKME4-BSR2

3
OCH673D
Cautions for units utilizing refrigerant R410A
1-1. CAUTIONS RELATED TO NEW REFRIGERANT
1SAFETY PRECAUTION
Use new refrigerant pipes.
Avoid using thin pipes.
Use a vacuum pump with a reverse ow check
valve.
Vacuum pump oil may ow back into refrigerant cycle and
that can cause deterioration of refrigerant oil, etc.
Handle tools with care.
If dirt, dust or moisture enters into refrigerant cycle, that
can cause deterioration of refrigerant oil or malfunction of
compressor.
Do not use a charging cylinder.
If a charging cylinder is used, the composition of refrigera-
nt will change and the efciency will be lowered.
Use the specied refrigerant only.
Never use any refrigerant other than that specied.
Doing so may cause a burst, an explosion, or re when
the unit is being used, serviced, or disposed of.
Correct refrigerant is specied in the manuals and on the
spec labels provided with our products.
We will not be held responsible for mechanical failure,
system malfunction, unit breakdown or accidents caused
by failure to follow the instructions.
Ventilate the room if refrigerant leaks during
operation. If refrigerant comes into contact with
a ame, poisonous gases will be released.
Use the following tools specically designed for
use with R410A refrigerant.
The following tools are necessary to use R410A
refrigerant.
Tools for R410A
Gauge manifold Flare tool
Charge hose Size adjustment gauge
Gas leak detector Vacuum pump adaptor
Torque wrench Electronic refrigerant
charging scale
Make sure that the inside and outside of refrige-
rant piping is clean and it has no contaminants
such as sulfur, oxides, dirt, shaving particles,
etc.,
which are hazard to refrigerant cycle.
In addition, use pipes with specied thickness.
Contamination inside refrigerant piping can cause deterio-
ration of refrigerant oil, etc.
Store the piping indoors, and keep both ends of
the piping sealed until just before brazing.
(Leave elbow joints, etc. in their packaging.)
If dirt, dust or moisture enters into refrigerant cycle, that
can cause deterioration of refrigerant oil or malfunction of
compressor.
The refrigerant oil applied to are and ange
connections must be ester oil, ether oil or
alkylbenzene oil in a small amount.
If large amount of mineral oil enters, that can cause
deterioration of refrigerant oil, etc.
Charge refrigerant from liquid phase of gas
cylinder.
If the refrigerant is charged from gas phase, composition
change may occur in refrigerant and the efciency will be
lowered.
Do not use refrigerant other than R410A.
If other refrigerant (R22, etc.) is used, chlorine in refrige-
rant can cause deterioration of refrigerant oil, etc.
Precautions during the repair service
• Do not perform the work involving the electric parts
with wet hands.
• Do not pour water into the electric parts.
• Do not touch the refrigerant.
•
Do not touch the hot or cold areas in the refrigerating cycle.
• When the repair or the inspection of the circuit needs
to be done without turning off the power, exercise great
caution not to touch the live parts.
Preparation before the repair service
• Prepare the proper tools.
• Prepare the proper protectors.
• Provide adequate ventilation.
• After stopping the operation of the air conditioner, turn
off the power-supply breaker.
• Discharge the condenser before the work involving the
electric parts.

4
OCH673D
Unit
Electronic weighing scale
[3] Service tools
Use the below service tools as exclusive tools for R410A refrigerant.
[1] Cautions for service
(1) Perform service after recovering the refrigerant left in unit completely.
(2) Do not release refrigerant in the air.
(3) After completing service, charge the cycle with specified amount of refrigerant.
(4) If moisture or foreign matter might have entered the refrigerant piping during service, ensure to remove them.
[2] Additional refrigerant charge
When charging directly from cylinder
(1) Check that cylinder for R410A on the market is a syphon type.
(2) Charging should be performed with the cylinder of syphon stood vertically. (Refrigerant is charged from liquid phase.)
Although "-BS" model has been designed to be resistant to salt damage, observe the following precautions to maintain the
performance of the unit.
(1) Avoid installing the unit in a location where it will be exposed directly to seawater or sea breeze.
(2) If the cover panel may become covered with salt, be sure to install the unit in a location where the salt will be washed away
by rainwater. (If a sunshade is installed, rainwater may not clean the panel.)
(3) To ensure that water does not collect in the base of the outdoor unit, make sure that the base is level, not at angle. Water
collecting in the base of the outdoor unit could cause rust.
(4) If the unit is installed in a coastal area, clean the unit with water regularly to remove any salt build-up.
(5) If the unit is damaged during installation or maintenance, be sure to repair it.
(6) Be sure to check the condition of the unit regularly.
(7) Be sure to install the unit in a location with good drainage.
1-2. PRECAUTIONS FOR SALT PROOF TYPE "-BS" MODEL
No. Tool name Specifications
1Gauge manifold · Only for R410A
· Use the existing fitting specifications. (UNF1/2)
· Use high-tension side pressure of 5.3MPa·G or over.
2Charge hose · Only for R410A
· Use pressure performance of 5.09MPa·G or over.
3Electronic weighing scale —
4Gas leak detector · Use the detector for R134a, R407C or R410A.
5Adaptor for reverse flow check · Attach on vacuum pump.
6Refrigerant charge base —
7Refrigerant cylinder · Only for R410A · Top of cylinder (Pink)
· Cylinder with syphon
8Refrigerant recovery equipment —

5
OCH673D
Cautions for refrigerant piping work
New refrigerant R410A is adopted for replacement inverter series. Although the refrigerant piping work for R410A is same
as for R22, exclusive tools are necessary so as not to mix with different kind of refrigerant. Furthermore as the working
pressure of R410A is 1.6 times higher than that of R22, their sizes of flared sections and flare nuts are different.
1 Thickness of pipes
Because the working pressure of R410A is higher compared to R22, be sure to use refrigerant piping with thickness
shown below. (Never use pipes of 0.7 mm or below.)
Diagram below: Piping diameter and thickness
Nominal
dimensions (in)
Outside
diameter (mm)
Thickness (mm)
R410A R22
1/4 6.35 0.8 0.8
3/8 9.52 0.8 0.8
1/2 12.70 0.8 0.8
5/8 15.88 1.0 1.0
3/4 19.05 — 1.0
2Dimensions of flare cutting and flare nut
The component molecules in HFC refrigerant are smaller compared to conventional refrigerants. In addition to that,
R410A is a refrigerant, which has higher risk of leakage because its working pressure is higher than that of other refrig-
erants. Therefore, to enhance airtightness and strength, flare cutting dimension of copper pipe for R410A has been
specified separately from the dimensions for other refrigerants as shown below. The dimension B of flare nut for R410A
also has partly been changed to increase strength as shown below. Set copper pipe correctly referring to copper pipe
flaring dimensions for R410A below. For 1/2 and 5/8 inch pipes, the dimension B changes.
Use torque wrench corresponding to each dimension.
3 Tools for R410A (The following table shows whether conventional tools can be used or not.)
Tools and materials Use R410A tools Can R22 tools be used? Can R407C tools be used?
Gauge manifold
Air purge, refrigerant charge
and operation check
Tool exclusive for R410A
Charge hose Tool exclusive for R410A
Gas leak detector Gas leak check Tool for HFC refrigerant
Refrigerant recovery equipment Refrigerant recovery Tool exclusive for R410A
Refrigerant cylinder Refrigerant charge Tool exclusive for R410A
Applied oil Apply to ared section
Ester oil, ether oil and
alkylbenzene oil
(minimum amount)
Ester oil, ether oil:
Alkylbenzene oil: minimum amount
Safety charger
Prevent compressor malfunction
when charging refrigerant by
spraying liquid refrigerant
Tool exclusive for R410A
Charge valve
Prevent gas from blowing out
when detaching charge hose
Tool exclusive for R410A
Vacuum pump Vacuum drying and air
purge
Tools for other refrigerants
can be used if equipped with
adopter for reverse ow check
(Usable if equipped with
adopter for reverse ow)
(Usable if equipped with
adopter for reverse ow)
Flare tool Flaring work of piping
Tools for other refrigerants can be
used by adjusting aring dimension
(Usable by adjusting
aring dimension)
(Usable by adjusting
aring dimension)
Bender Bend the pipes
Tools for other refrigerants can be used
Pipe cutter Cut the pipes Tools for other refrigerants can be used
Welder and nitrogen gas cylinder Weld the pipes Tools for other refrigerants can be used
Refrigerant charging scale Refrigerant charge Tools for other refrigerants can be used
Vacuum gauge or
thermistor vacuum gauge
and vacuum valve
Check the degree of vacuum. (Vacuum
valve prevents back ow of oil and
refrigerant to thermistor vacuum gauge)
Tools for other refrigerants
can be used
Charging cylinder Refrigerant charge Tool exclusive for R410A ─
: Prepare a new tool. (Use the new tool as the tool exclusive for R410A.)
: Tools for other refrigerants can be used under certain conditions.
: Tools for other refrigerants can be used.
Dimension A
Dimension B
Flare cutting dimensions
Nominal
dimensions (in)
Outside
diameter (mm)
Dimension A ( )(mm)
R410A R22
1/4 6.35 9.1 9.0
3/8 9.52 13.2 13.0
1/2 12.70 16.6 16.2
5/8 15.88 19.7 19.4
3/4 19.05 — 23.3
+0
-0.4
Flare nut dimensions
Nominal
dimensions (in)
Outside
diameter (mm)
Dimension B(mm)
R410A R22
1/4 6.35 17.0 17.0
3/8 9.52 22.0 22.0
1/2 12.70 26.0 24.0
5/8 15.88 29.0 27.0
3/4 19.05 — 36.0

6 7
OCH673D
2OVERVIEW OF UNITS
2-1. SYSTEM CONSTRUCTION
Model
Capacity
Cassette Ceiling Ceiling
Concealed
Wall
Mounted
Ceiling
Suspended
Floor standing Ceiling
concealed Lossnay
Air to
Water
unit
*2
2 by 2 4-way ow 2-way ow 1-way ow Exposed Concealed Fresh air
*3
PLFY-P PLFY-P PLFY-EP
*7
PLFY-M
PLFY-P PMFY-P PEFY-P PEFY-M PKFY-P PCFY-P PFFY-P PFFY-P PEFY-P GUF
*6
PWFY-P
10 – – – – – – – – 10VLM-E – – – – – –
15 15VFM-E – – – – – 15VMS1(L)-E – 15VLM-E – – – – – –
20 20VFM-E 20VEM-E – 20VEM-E 20VLMD-E 20VBM-E
20VMS1(L)-E
20VMA(L)-E(2/3)
20VMR-E-L/R
20VMA(L)-A 20VLM-E – 20VLEM-E
20VKM-E
20VLRM-E
20VLRMM-E
20VCM-E
–––
25 25VFM-E 25VEM-E – 25VEM-E 25VLMD-E 25VBM-E
25VMS1(L)-E
25VMA(L)-E(2/3)
25VMR-E-L/R
25VMA3-E
*5
25VMA(L)-A 25VLM-E – 25VLEM-E
25VKM-E
25VLRM-E
25VLRMM-E
25VCM-E
–––
32 32VFM-E 32VEM-E
32VEM-A – 32VEM-E 32VLMD-E 32VBM-E
32VMS1(L)-E
32VMA(L)-E(2/3)
32VMR-E-L/R
32VMA3-E
*5
32VMA(L)-A 32VLM-E – 32VLEM-E
32VKM-E
32VLRM-E
32VLRMM-E
32VCM-E
–––
40 40VFM-E 40VEM-E
40VEM-A – 40VEM-E 40VLMD-E 40VBM-E
40VMS1(L)-E
40VMA(L)-E(2/3)
40VMHS-E
40VMA3-E
*5
40VMA(L)-A 40VLM-E 40VKM-E 40VLEM-E
40VKM-E
40VLRM-E
40VLRMM-E
40VCM-E
–––
50 50VFM-E 50VEM-E
50VEM-A 50VEM-E 50VEM-E 50VLMD-E –
50VMS1(L)-E
50VMA(L)-E(2/3)
50VMHS-E
50VMA(L)-A 50VLM-E – 50VLEM-E
50VLRM-E
50VLRMM-E
50VCM-E
– 50RD(H)4 –
63 –63VEM-E
63VEM-A 63VEM-E 63VEM-E 63VLMD-E –
63VMS1(L)-E
63VMA(L)-E(2/3)
63VMH-E
63VMA(L)-A 63VKM-E 63VKM-E 63VLEM-E
63VLRM-E
63VLRMM-E
63VCM-E
–––
71 ––––––71VMA(L)-E(2/3)
71VMHS-E 71VMA(L)-A – – – – – – –
80 –80VEM-E
80VEM-A 80VEM-E 80VEM-E 80VLMD-E – 80VMA(L)-E(2/3) 80VMH-E 80VMA(L)-A – – – – 80VMH- E-F –
100 –100VEM-E
100VEM-A – 100VEM-E
100VLMD-E –100VMA(L)-E(2/3)
100VMHS-E 100VMA(L)-A 100VKM-E 100VKM-E – – – 100RD(H)4
100VM-
E1-AU
100VM-
E2-AU
125 –125VEM-E
125VEM-A – 125VEM-E
125VLMD-E –125VMA(L)-E(2/3)
125VMHS-E 125VMA(L)-A – 125VKM-E – – 125VMHS- E-F –
140 ––––––140VMA(L)-E(2/3)
140VMHS-E 140VMA(L)-A – – – – 140VMH- E-F –
Notes:
Only for R1/R2 models: PEFY-P·VMA(L)-E3, PKFY-P·VLM, PFFY-P·VCM
Only for R2 models: PLFY-M·VEM, PEFY-M·VMA(L), PEFY-P·VMHS-E-F
M series remote
controller
Outdoor unit
4HP 5HP 6HP
PUMY-P112VKM4(-BS)
PUMY-P112YKM4(-BS)
PUMY-P112YKME4(-BS)
PUMY-P125VKM4(-BS)
PUMY-P125YKM4(-BS)
PUMY-P125YKME4(-BS)
PUMY-P140VKM4(-BS)
PUMY-P140YKM4(-BS)
PUMY-P140YKME4(-BS)
Applicable
indoor unit
Capacity Type 10 to Type 140
Number of units 1 to 9 unit 1 to 10 unit 1 to 12 unit
Total system capacity range 50 to 130% of outdoor unit capacity *1 *2
CMY-Y62-G-E CMY-Y64-G-E CMY-Y68-G-E
Branching pipe
components
Branch header
(2 branches)
Branch header
(4 branches)
Branch header
(8 branches)
Remote
controller
Name M-NET remote controller MA remote controller
Model number PAR-U02MEDA PAR-40MAA
PAR-W21MAA(when using PWFY)
Functions
• A handy remote controller for use in
conjunction with the Melans centralized
management system.
• Addresses must be set.
• Addresses setting is not necessary.
*1. When the indoor unit of Fresh Air type is connected with the outdoor unit, the maximum connectable total indoor unit capacity is 110%.
*2. When connecting PWFY series (Note that the connection is not allowed inside EU countries.)
• Only 1 PWFY-P100VM-E-AU can be connected. PWFY-P200VM-E-AU and PWFY-P100VM-E-BU cannot be connected.
• The PWFY unit cannot be the only unit connected to an outdoor unit. Select an indoor unit so that the total rated capacity of the indoor
units, excluding the PWFY unit, is 50 to 100% of the outdoor unit capacity.
*3. PUMY is connectable to Fresh Air type indoor unit.
It is possible to connect 1 Fresh Air type indoor unit to 1 outdoor unit. (1:1 system)
Operating temperature range (outdoor temperature) for fresh air type indoor units differ from other indoor units.
Refer to "2-4-(3). Operating temperature range".
*4.
When connecting the CONNECTION KIT (PAC-LV11M-J) and an M-series indoor unit, refer to the installation manual for the CONNECTION KIT.
*5. Authorized connectable indoor units are as follows;
PUMY-P112: PEFY-P25VMA3-E × 2 + PEFY-P32VMA3-E × 2
PUMY-P125: PEFY-P32VMA3-E × 4
PUMY-P140: PEFY-P32VMA3-E × 3 + PEFY-P40VMA3-E × 1
*6. Do not connect Lossnay remote controller(s). (PZ-61DR-E, PZ-60DR-E, PZ-52SF-E, PZ-43SMF-E)
*7. For the PLFY-EP･VEM-E, up to 2 units can be connected. Other indoor units excluding the PEFY-P･VMA3-E and PEFY-P･VMH(S)-E-F can be
connected within the total rated capacity and maximum number of connected units.
CONNECTION KIT
PAC-LV11M-J
M series indoor unit
*4
MSZ-SF·VA/VE series
MSZ-EF·VE/VG(K) series
MSZ-FH·VE series
MFZ-KJ·VE series
MFZ-KT·VG series
MFXZ-KW·VG series
MSZ-LN·VG(2) series
MSZ-AP·VG(K) series
MSZ-AP·VF series

7
OCH673D 7
2-2. SYSTEM CONSTRUCTION (BRANCH BOX SYSTEM)
Outdoor unit
PUMY-P112VKM4(-BS)
PUMY-P112YKM4(-BS)
PUMY-P112YKME4(-BS)
PUMY-P125VKM4(-BS)
PUMY-P125YKM4(-BS)
PUMY-P125YKME4(-BS)
PUMY-P140VKM4(-BS)
PUMY-P140YKM4(-BS)
PUMY-P140YKME4(-BS)
4HP 5HP 6HP
Applicable indoor
unit
Capacity Type 15 to Type 100
Number of units 2 to 8 units
Total system
capacity range*1
24 to 130 % of outdoor unit
capacity
(3.0 to 16.2 kW)
21 to 130 % of outdoor unit
capacity
(3.0 to 18.2 kW)
19 to 130 % of outdoor unit
capacity
(3.0 to 20.2 kW)
Branch box that can
be connected Number of units*1 1 to 2 units
Connectable indoor unit lineup (Heat pump inverter type)
Model type Model name Capacity class (kW)
1.5 1.8 2.0 2.2 2.5 3.5 4.2 5.0 6.0 7.1 8.0 10.0
Wall
mounted
Deluxe MSZ-FH25/35/50VE ● ● ●
MSZ-LN25/35/50VG(2) ● ● ●
Standard
MSZ-SF25/35/42/50VE3 ●●●●
MSZ-AP25/35/42/50VG(K)(D) ●●●●
MSZ-GF60/71VE ● ●
MSZ-EF18/22/25/35/42/50VE3(2/3) ● ●●●●●
MSZ-EF18/22/25/35/42/50VG(K) ● ●●●●●
MSZ-GE22/25/35/42/50/60/71/80VAD ●●●●●●●●
Compact
MSZ-SF15/20VA ● ●
MSZ-AP15/20VF ● ●
MSZ-AP15/20VG(D) ● ●
Ceiling
concealed
Low static pressure
SEZ-KD25/35/50/60/71VAQ(L) ●● ●●●
SEZ-M25/35/50/60/71DA(L) ●● ●●●
Middle static pressure
PEAD-RP50/60/71/100JA(L)Q ● ● ● ●
PEAD-RP71/100JAA(D) ● ●
PEAD-M50/60/71/100JA(L) ● ● ● ●
PEAD-M50/60/71/100DA(L) ● ● ● ●
4-way
ceiling
cassette
2 by 2 type SLZ-KF25/35/50VA2/3 ● ● ●
SLZ-M15/25/35/50FA ● ● ● ●
Standard PLA-RP35/50/60/71/100EA ● ● ● ● ●
PLA-M35/50/60/71/100EA ● ● ● ● ●
Ceiling suspended PCA-RP35/50/60/71/100KAQ ● ● ● ● ●
PCA-M35/50/60/71/100KA ● ● ● ● ●
Floor standing
MFZ-KJ25/35/50VE(2) ● ● ●
MFZ-KT25/35/50VG ● ● ●
MEXZ-KW25/35/50VG ● ● ●
1-way ceiling cassette MLZ-KA25/35/50VA ● ● ●
MLZ-KP25/35/50VF ● ● ●
Note: The lineup of a connectable indoor unit depends on a district/areas/country.
Only for R1/R2 models: MSZ-EF·VG, MSZ-AP·VG, PLA-M·EA
Only for R2 models:MSZ-LN·VG2, MSZ-AP·VGK, MSZ-AP·VGK, MFZ-KT·VG, MFXZ-KW·GA
Connectable ecodan unit
Model type Model name
Cylinder unit EHST20C series (except EHST20C-MEC)
Hydrobox EHSC series (except EHSC-MEC)
Note: Only 1 Cylinder unit or Hydrobox can be connected.
Branch box PAC-MK54BC PAC-MK34BC
Number of branches
(Connectable indoor unit)
5 branches
(MAX. 5 units)
3 branches
(MAX. 3 units)
Notes: 1. A maximum of 2 branch boxes can be connected to 1 outdoor unit.
2. PAC-MK31/51BC(B) cannot use for connecting a Cylinder unit or a Hydrobox.
2- branch pipe (joint): Optional parts
When using 1- branch box No need
When using 2- branch boxes
Model name Connection method
MSDD-50AR-E are
MSDD-50BR-E brazing
Select a model according to the connection method.
Option Optional accessories of indoor units and outdoor units are available.
*1 When connecting ecodan unit(s), the total capacity of connected Air to Air indoor units is up to 130% of the outdoor unit. (Air to Air 130% + ecodan).
However, when operating Air to Air indoor unit(s) in heating mode and ecodan unit(s) in DHW or heating mode at the same time, the total capacity of
connected Air to Air units is below:
PUMY-P112: 1.3 kW, PUMY-P125: 2.8 kW, PUMY-P140: 4.3 kW
However, the following combinations can be connected:
PUMY-P112: MSZ-SF15VA or MSZ-AP15VF × 1, PUMY-P125: MSZ-SF15VA or MSZ-AP15VF× 2,
PUMY-P140: MSZ-SF15VA or MSZ-AP15VF × 3

8
OCH673D
2-3. SYSTEM CONSTRUCTION (MIXED SYSTEM)
Outdoor unit
PUMY-P112VKM4(-BS)
PUMY-P112YKM4(-BS)
PUMY-P112YKME4(-BS)
PUMY-P125VKM4(-BS)
PUMY-P125YKM4(-BS)
PUMY-P125YKME4(-BS)
PUMY-P140VKM4(-BS)
PUMY-P140YKM4(-BS)
PUMY-P140YKME4(-BS)
Applicable
indoor unit
Capacity
CITY MULTI indoor unit
*4*5
Type 15 to Type 140
Via branch box Type 15 to Type 100
Number
of units*1
Via branch box CITY MULTI indoor Via branch box CITY MULTI indoor Via branch box CITY MULTI indoor
1-branch box 5 5 5 5 5 5
2-branch box 7 or 8*2 3 or 2*2 8383
Total system wide capacity*1 6.3 to 16.2 kW 7.1 to 18.2 kW 8.0 to 20.2 kW
50 to 130% of outdoor unit capacity
Branching pipe
components
CMY-Y62-G-E CMY-Y64-G-E CMY-Y68-G-E Branch box
Number of
branches
PAC-MK54BC PAC-MK34BC
Branch header
(2 branches)
Branch header
(4 branches)
Branch header
(8 branches)
5 branches
(MAX. 5 units)
3 branches
(MAX. 3 units)
CITY MULTI indoor
units*3
M series
S series
P series
indoor units*3
Cylinder unit
Hydrobox
MA
remote
controller
MA
remote
controller
CONNECTION KIT
PAC-LV11M-J
M series indoor unit
M series
remote
controller
*1 When connecting ecodan unit, the total capacity of connected Air to Air indoor units is up to 130% of the outdoor
unit (Air to Air 130% + ecodan). However, when operating Air to Air indoor unit(s) in heating mode and ecodan unit
in DHW or heating mode at the same time, the maximum connectable Air to Air indoor unit is below.
Model ATA total
capacity Can be exceptionally connected
PUMY-P112 1.3 kW MSZ-SF15VE or MSZ-AP15VF× 1
PUMY-P125 2.8 kW MSZ-SF15VE or MSZ-AP15VF× 2
PUMY-P140 4.3 kW MSZ-SF15VE or MSZ-AP15VF× 3
*2 When connecting 7 indoor units via branch box, connectable CITY MULTI indoor units are 3; connecting 8 indoor units
via branch box, connectable citymulti indoor units are 2.
*3 Refer to “2-1. SYSTEM CONSTRUCTION” or “2-2. SYSTEM CONSTRUCTION (BRANCH BOX SYSTEM)”, for more detail.
*4 PKFY-P10/15/20/25/32VLM, PFFY-P*VKM, PFFY-P*VCM, PFFY-P*VL* type indoor units cannot be used with MIXED
SYSTEM.
*5 For the PLFY-EP*VEM-E, up to 2 units can be connected. Other indoor units excluding the PEFY-P*VMA3-E and
PEFY-P*VMH(S)-E-F can be connected within the total rated capacity and maximum number of connected units.

9
OCH673D
2-4. SYSTEM SPECIFICATIONS
(2) Method for identifying MULTI-S model
(1) Outdoor Unit
Outdoor unit <When using model 125 >
(3) Operating temperature range
Cooling Heating
Indoor intake air temperature W.B. 15 to 24°C D.B. 15 to 27°C
Outdoor intake air temperature D.B. −5 to 52°C*1 W.B. −20 to 15°C
Notes: D.B.: Dry Bulb Temperature
W.B.: Wet Bulb Temperature
*1 10 to 52°C D.B.: When connecting PKFY-P10/15/20/25/32VLM, PFFY-P20/25/32VKM, PFFY-P20/25/32VCM, PFFY-P20/25/32VLEM,
PFFY-P20/25/32VLRM(M), PEFY-P25/32/40VMA3-E, and M series, S series, and P series type indoor unit.
■ When connecting fresh air type indoor unit
• PEFY-P·VMH-E-F
Cooling Heating
Indoor and outdoor intake air temperature D.B. 21 to 43°C*2
W.B. 15.5 to 35°C D.B.−10 to 20°C*3
*2 Thermo-OFF (FAN-mode) automatically starts if the outdoor temp. is lower than 21°C D.B..
*3 Thermo-OFF (FAN-mode) automatically starts if the outdoor temp. is higher than 20°C D.B..
Temperature range is -5°C when the total of connecting capacity exceeds 100%.
• PEFY-P·VMHS-E-F
Cooling Heating
Indoor and outdoor intake air temperature D.B. 17 to 43°C*4
W.B. 15.5 to 35°C D.B.−5 to 20°C*5
*4 Thermo-OFF (FAN-mode) automatically starts if the outdoor temp. is lower than 17°C D.B..
*5 Thermo-OFF (FAN-mode) automatically starts if the outdoor temp. is higher than 21°C D.B..
■ When connecting PWFY unit
Cooling Heating
Indoor intake water temperature ─ *6 D.B. 10 to 45°C
Outdoor intake air temperature ─ *6 W.B. −20 to 15°C
*6 • PWFY series can operate in Heating mode but not in Cooling mode. An indoor unit other than that of PWFY series can operate in
Cooling mode.
• A PWFY series and other series cannot operate simultaneously.
• The operation of PWFY series takes precedence over other series. While a PWFY series is operating, other series do not operate.
• The set temperature on the remote controller represents the target temperature of the outlet water.
Service Ref.
PUMY-P112VKM4(-BS)
PUMY-P112YKM4(-BS)
PUMY-P112YKME4(-BS)
PUMY-P125VKM4(-BS)
PUMY-P125YKM4(-BS)
PUMY-P125YKME4(-BS)
PUMY-P140VKM4(-BS)
PUMY-P140YKM4(-BS)
PUMY-P140YKME4(-BS)
Capacity Cooling (kW) 12.5 14.0 15.5
Heating (kW) 14.0 16.0 18.0
Cooling/Heating capacity indicates the maximum value at operation under the following condition.
Cooling Indoor: D.B. 27°C/W.B. 19.0°C
Outdoor:D.B. 35°C
Heating Indoor: D.B. 20°C
Outdoor:D.B. 7°C/W.B. 6°C
PU M Y ─P 125 Y K M E 4 ─ BS
Outdoor unit Refrigerant
R410A
MULTI-S
Frequency
conversion
controller
Indicates equivalent
to Cooling capacity(kcal/ h)
Power supply
V: Single phase
220-230-240 V, 50 Hz
Y: 3-phase
380-400-415 V, 50 Hz
380 V, 60 Hz (YKM4 only)
Outdoor unit
model type
M-NET
control
Electrical
box
sub
number
Salt proof
type

1110
OCH673D
-10 -5 0 5 10 15
39
41
43
45
47
49
51
53
55
57
Outdoor temp. [°CDB]
Max. outlet water temp. [°C]
Figure 1 Temperature change of max. outlet water temp. according to outdoor temperature
■ When connecting Cylinder unit or Hydrobox
Cooling DHW only ATW Heating only DHW + ATA Heating*7 ATW Heating + ATA
Heating*7
Outlet water temperature ─ *8 55°C Max. 55°C Max. 55°C Max. 45 to 55°C Max.
Outdoor temperature ─ *8 −20 to 35°C
−20 to 21°C 7 to 35°C −10 to 35°C*9
*7 ATA unit: Air to Air unit (other than PWFY, Cylinder unit or Hydrobox)
*8 Cylinder unit and Hydrobox cannot operate Cooling mode in connecting PUMY.
*9 When outdoor temp. is less than 7°C, outlet water temp. is lowered (Refer to Figure 1).
Furthermore, outlet air temperature is lowered.