Mitsubishi Electric PUMY-P112VKM3 Operating manual

TECHNICAL & SERVICE MANUAL
OUTDOOR UNIT
HFC
utilized
R410A
March 2017
Note:
•This service manual
describes technical data of
the outdoor units only.
<Outdoor unit>
[Model Name]
Model name
indication
PARTS CATALOG (OCB632)
PUMY-P112VKM3
PUMY-P125VKM3
PUMY-P140VKM3
PUMY-P112YKM3
PUMY-P125YKM3
PUMY-P140YKM3
PUMY-P112VKM3-BS
PUMY-P125VKM3-BS
PUMY-P140VKM3-BS
PUMY-P112YKM3-BS
PUMY-P125YKM3-BS
PUMY-P140YKM3-BS
Salt proof model
PUMY-P112VKM3
PUMY-P125VKM3
PUMY-P140VKM3
PUMY-P112YKM3 PUMY-P112YKME3
PUMY-P125YKM3 PUMY-P125YKME3
PUMY-P140YKM3 PUMY-P140YKME3
PUMY-P112VKM3-BS
PUMY-P125VKM3-BS
PUMY-P140VKM3-BS
PUMY-P112YKM3-BS PUMY-P112YKME3-BS
PUMY-P125YKM3-BS PUMY-P125YKME3-BS
PUMY-P140YKM3-BS PUMY-P140YKME3-BS
[Service Ref.]
CONTENTS
1. SAFETY PRECAUTION .....................................2
2. OVERVIEW OF UNITS.......................................5
3. SPECIFICATIONS ............................................10
4. DATA.................................................................13
5. OUTLINES AND DIMENSIONS .......................27
6. WIRING DIAGRAM...........................................29
7. NECESSARY CONDITIONS FOR SYSTEM CONSTRUCTION....... 32
8. TROUBLESHOOTING......................................50
9. ELECTRICAL WIRING ...................................132
10. REFRIGERANT PIPING TASKS ....................139
11. DISASSEMBLY PROCEDURE.......................146
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
No. OCH632
REVISED EDITION-A
Revision:
•Modified the "Ratio of
power input" graph for cool-
ing in "4-2. CORRECTION
BY TEMPERATURE" in
REVISED EDITION-A.
•Some other descriptions
have been also modified.
OCH632 is void.

2
Cautions for units utilizing refrigerant R410A
1-1. CAUTIONS RELATED TO NEW REFRIGERANT
Use new refrigerant pipes.
Store the piping indoors, and both ends of the
piping sealed until just before brazing.
(Leave elbow joints, etc. in their packaging.)
Avoid using thin pipes.
Charge refrigerant from liquid phase of gas
cylinder.
If the refrigerant is charged from gas phase, composition
change may occur in refrigerant and the efficiency 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.
Use a vacuum pump with a reverse flow check
valve.
Vacuum pump oil may flow back into refrigerant cycle and
that can cause deterioration of refrigerant oil, etc.
Use the following tools specifically designed for
use with R410A refrigerant.
The following tools are necessary to use R410A refrigerant.
Handle tools with care.
If dirt, dust or moisture enters into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of com-
pressor.
Do not use a charging cylinder.
If a charging cylinder is used, the composition of refrigera-
nt will change and the efficiency will be lowered.
Flare tool
Electronic refrigerant
charging scale
Vacuum pump adaptor
Size adjustment gauge
Gauge manifold
Torque wrench
Gas leak detector
Charge hose
Tools for R410A
Contamination inside refrigerant piping can cause deterio-
ration of refrigerant oil, etc.
If dirt, dust or moisture enters into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of com-
pressor.
If large amount of mineral oil enters, that can cause deterio-
ration of refrigerant oil, etc.
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 specified thickness.
The refrigerant oil applied to flare and flange
connections must be ester oil, ether oil or
alkylbenzene oil in a small amount.
Ventilate the room if refrigerant leaks during
operation. If refrigerant comes into contact with
a flame, poisonous gases will be released.
Use the specified refrigerant only.
Never use any refrigerant other than that specified.
Doing so may cause a burst, an explosion, or fire when the
unit is being used, serviced, or disposed of.
Correct refrigerant is specified 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.
1SAFETY PRECAUTION
OCH632A

3
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 —
OCH632A

4
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.
1Thickness 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.)
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.
3Tools for R410A (The following table shows whether conventional tools can be used or not.)
1/4
3/8
1/2
5/8
3/4
6.35
9.52
12.70
15.88
19.05
0.8
0.8
0.8
1.0
—
0.8
0.8
0.8
1.0
1.0
Nominal
dimensions (in)
Diagram below: Piping diameter and thickness
Outside
diameter (mm)
Thickness (mm)
R410A R22
1/4
3/8
1/2
5/8
3/4
6.35
9.52
12.70
15.88
19.05
9.1
13.2
16.6
19.7
—
9.0
13.0
16.2
19.4
23.3
Nominal
dimensions (in)
Flare cutting dimensions
Outside
diameter
Dimension A ( )
+0
-0.4 (mm)
R410A R22
(mm)
1/4
3/8
1/2
5/8
3/4
6.35
9.52
12.70
15.88
19.05
17.0
22.0
26.0
29.0
—
17.0
22.0
24.0
27.0
36.0
Nominal
dimensions (in)
Flare nut dimensions
Outside
diameter
Dimension B (mm)
R410A R22
(mm)
Gauge manifold
Charge hose
Gas leak detector
Refrigerant recovery equipment
Refrigerant cylinder
Applied oil
Safety charger
Charge valve
Vacuum pump
Flare tool
Bender
Pipe cutter
Welder and nitrogen gas cylinder
Refrigerant charging scale
Vacuum gauge or thermis-
tor vacuum gauge and
vacuum valve
Charging cylinder
Air purge, refrigerant charge
and operation check
Gas leak check
Refrigerant recovery
Refrigerant charge
Apply to flared section
Prevent compressor malfunction
when charging refrigerant by
spraying liquid refrigerant
Prevent gas from blowing out
when detaching charge hose
Vacuum drying and air
purge
Flaring work of piping
Bend the pipes
Cut the pipes
Weld the pipes
Refrigerant charge
Check the degree of vacuum. (Vacuum
valve prevents back flow of oil and refri-
gerant to thermistor vacuum gauge)
Refrigerant charge
Tool exclusive for R410A
Tool exclusive for R410A
Tool for HFC refrigerant
Tool exclusive for R410A
Tool exclusive for R410A
Ester oil, ether oil and
alkylbenzene oil (minimum amount)
Tool exclusive for R410A
Tool exclusive for R410A
Tools for other refrigerants can
be used if equipped with adop-
ter for reverse flow check
Tools for other refrigerants
can be used by adjusting
flaring dimension
Tools for other refrigerants can be used
Tools for other refrigerants can be used
Tools for other refrigerants can be used
Tools for other refrigerants can be used
Tools for other refrigerants
can be used
Tool exclusive for R410A
Tools and materials Use R410A tools Can R22 tools be used?
(Usable if equipped
with adopter for rever-
se flow)
(Usable by adjusting
flaring dimension)
Can R407C tools be used?
Ester oil, ether oil:
Alkylbenzene oil: minimum amount
(Usable if equipped
with adopter for rever-
se flow)
(Usable by adjusting
flaring dimension)
: 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
OCH632A

5
2
2-1. UNIT CONSTRUCTION
Remote
controller
Name
Model number
Functions
M-NET remote controller
PAR-F27MEA-E,
PAR-U02MEDA
• A handy remote controller for use in
conjunction
with the Melans centralized
management system.
• Addresses must be set.
• Addresses setting is not
necessary.
MA remote controller
PAR-21MAA, PAR-31/32MAA
PAR-W21MAA(when using PWFY)
Outdoor unit
Capacity
1 to 9 unit
50 to 130% of outdoor unit capacity *2 *3
Type 15 to Type 140
1 to 10 unit
Applicable
indoor unit
Number of units
Total system wide capacity
4HP 5HP 6HP
PUMY-P112VKM3(-BS)
PUMY-P112YKM(E)3(-BS)
PUMY-P125VKM3(-BS)
PUMY-P125YKM(E)3(-BS)
1 to 12 unit
PUMY-P140VKM3(-BS)
PUMY-P140YKM(E)3(-BS)
Branching pipe
components
Branch header
(2 branches)
Branch header
(4 branches)
Branch header
(8 branches)
CMY-Y62-G-E CMY-Y64-G-E CMY-Y68-G-E
*1. 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".
*2. When the indoor unit of Fresh Air type is connected with the outdoor unit, the maximum connectable total indoor unit capacity is 110% (100%
incaseofheatingbelow−5:.
*3. 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.
*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)
Decorative panel
OVERVIEW OF UNITS
M series remote
controller
Model
Capacity
Cassette Ceiling Ceiling
Concealed
Wall
Mounted
Ceiling
Suspended
Floor standing Ceiling concealed Lossnay Air to Water
unit*3
CONNECTION KIT
2 by 2 4-way ow 2-way ow 1-way ow Exposed Concealed Fresh air
*1
Built-in
PAC-LV11M-J
PLFY-P PLFY-P PLFY-P
PMFY-P PEFY-P PKFY-P PCFY-P PFFY-P PFFY-P PEFY-P PDFY GUF*6PWFY-P
15
15VFM-E1 – – – 15VMS1(L)-E 15VBM-E – – – – – – –
20
20VFM-E1 20VBM-E 20VLMD-E 20VBM-E
20VMS1(L)-E
20VMA(L)-E
20VMR-E-L/R
20VBM-E –
20VLEM-E
20VKM-E2
20VLRM-E
20VLRMM-E
– 20VM-E – –
25
25VFM-E1 25VBM-E 25VLMD-E 25VBM-E
25VMS1(L)-E
25VMA(L)-E
25VMR-E-L/R
25VMA3-E
*5
25VBM-E –
25VLEM-E
25VKM-E2
25VLRM-E
25VLRMM-E
– 25VM-E – –
32
32VFM-E1 32VBM-E 32VLMD-E 32VBM-E
32VMS1(L)-E
32VMA(L)-E
32VMR-E-L/R
32VMA3-E
*5
32VHM-E –
32VLEM-E
32VKM-E2
32VLRM-E
32VLRMM-E
– 32VM-E – –
40
40VFM-E1 40VBM-E 40VLMD-E 40VBM-E
40VMS1(L)-E
40VMA(L)-E
40VMH-E
40VMA3-E
*5
40VHM-E 40VKM-E
40VLEM-E
40VKM-E2
40VLRM-E
40VLRMM-E
– 40VM-E – –
M series indoor unit *4
MSZ-GE Series
MSZ-SF Series
MSZ-EF Series
MSZ-FH Series
MFZ-KJ Series
50
50VFM-E1
50VBM-E 50VLMD-E –
50VMS1(L)-E
50VMA(L)-E
50VMH-E
50VHM-E – 50VLEM-E
50VLRM-E
50VLRMM-E
– 50VM-E 50RD(H)4 –
63 –
63VBM-E 63VLMD-E –
63VMS1(L)-E
63VMA(L)-E
63VMH-E
63VKM-E 63VKM-E 63VLEM-E
63VLRM-E
63VLRMM-E
– 63VM-E – –
71 – –
– –
71VMA(L)-E
71VMH-E
– – – – – 71VM-E – –
80 –
80VBM-E 80VLMD-E
–
80VMA(L)-E
80VMH-E
– – – –
80VMH-E-F
80VM-E –
100 –
100VBM-E 100VLMD-E –
100VMA(L)-E
100VMH-E
100VKM-E 100VKM-E – – – 100VM-E 100RD(H)4
100VM-E1-AU
100VM-E2-AU
125 –
125VBM-E 125VLMD-E –
125VMA(L)-E
125VMH-E
– 125VKM-E – – – 125VM-E –
140 – – –
–
140VMA(L)-E
140VMH-E
– – – – 140VMH-E-F – –
OCH632A

6
PUMY-P125VKM3(-BS)
PUMY-P125YKM(E)3(-BS)
PUMY-P140VKM3(-BS)
PUMY-P140YKM(E)3(-BS)
6HP
PUMY-P112VKM3(-BS)
PUMY-P112YKM(E)3(-BS)
4HP
Applicable
indoor unit
Branch box
that can be
connected
Capacity
Number of units
Total system wide capacity*
1
Type 15 to Type 100
2 to 8 units
1 to 2 units
24 to 130 % of outdoor unit capacity
(3.0 to 16.2 kW)
Number of units *
1
Outdoor unit
Ceiling
concealed
4-way
ceiling cassette
Wall
mounted
Model type Model name
Deluxe
Standard
Compact
Low static pressure
Middle static pressure
2 by 2 type
Standard
MSZ-FH25/35/50VE2
MSZ-SF25/35/42/50VE3
MSZ-GF60/71VE
MSZ-EF18/22/25/35/42/50VE3
MSZ-SF15/20VA
SEZ-KD25/35/50/60/71VAQ(L)
PEAD-RP50/60/71/100JA(L)Q
SLZ-KF25/35/50VA2
PLA-ZRP35/50/60/71/100BA
PLA-RP35/50/60/71/100EA
PCA-RP35/50/60/71/100KAQ
MFZ-KJ25/35/50VE2
MLZ-KA25/35/50VA
Floor standing
Capacity class (kW)
2.2 2.5 3.5 5.0 6.0 7.1 8.0 10.0
Connectable indoor unit lineup (Heat pump inverter type)
Note: The lineup of a connectable indoor unit depends on a district/areas/country.
Branch box PAC-MK51/52BC(B)
5 branches
(MAX. 5 units)
PAC-MK31/32BC(B)
3 branches
(MAX. 3 units)
Number of branches
Indoor unit that
can be connected
( )
Notes: 1. A maximum of 2 branch boxes can be connected to 1 outdoor unit.
2. When connecting a Cylinder unit or a Hydrobox, use a PAC-MK32/52BC(B) branch box.
Select a model according to the connection method.
2- branch pipe (joint): Optional parts
In case of using 1- branch box
In case of using 2- branch boxes
No need
Model name Connection method
flare
brazing
MSDD-50AR-E
MSDD-50BR-E
Option Optional accessories of indoor units and outdoor units are available.
2.01.5 1.8 4.2
1-way ceiling cassette
5HP
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)
Ceiling suspended
Model type
Cylinder unit
Hydrobox
Connectable ecodan unit
Model name
EHST20C series (except EHST20C-MEC)
EHSC series (except EHSC-MEC)
Note: Only 1 Cylinder unit or Hydrobox can be connected.
*
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 × 1
· PUMY-P125: MSZ-SF15VA × 2
· PUMY-P140: MSZ-SF15VA × 3
2-2. UNIT CONSTRUCTION (BRANCH BOX SYSTEM)
OCH632A

7
PUMY-P125VKM3(-BS)
PUMY-P125YKM(E)3(-BS)
PUMY-P140VKM3(-BS)
PUMY-P140YKM(E)3(-BS)
Via branch box Citymulti indoor
PUMY-P112VKM3(-BS)
PUMY-P112YKM(E)3(-BS)
Applicable
indoor unit
Capacity
Number
of units*1
Via branch box Citymulti indoor
5
7 or 8*2
Outdoor unit
PAC-MK51/52BC(B)
5 branches
(MAX. 5 units)
PAC-MK31/32BC(B)
3 branches
(MAX. 3 units)
Branch box
Number of branches
City multi indoor unit
Via branch box
Type 15 to Type 140
Type 15 to Type 100
1-branch box
2-branch box
Via branch box Citymulti indoor
5
3 or 2*2
5
8
5
3
5
8
5
3
Total system wide capacity*16.3 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
Branch header
(2 branches)
CMY-Y64-G-E
Branch header
(4 branches)
CMY-Y68-G-E
Branch header
(8 branches)
Citymulti indoor units*3
CONNECTION KIT
PAC-LV11M-J
M series indoor unit
MA
remote
controller
M series
remote
controller
M series
S series
P series
indoor units*3
Cylinder unit
Hydrobox
MA
remote
controller
*2When connecting 7 indoor units via branch box, connectable citymulti indoor units are 3; connecting 8 indoor units
via branch box, connectable citymulti indoor units are 2.
*3Refer to “2-1. UNIT CONSTRUCTION” or “2-2. UNIT CONSTRUCTION (BRANCH BOX SYSTEM)”, for more detail.
*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.
2-3. UNIT CONSTRUCTION (MIXED SYSTEM)
Model ATA total capacity Can be exceptionally
connected
PUMY-P112 1.3 kW MSZ-SF15VE × 1
PUMY-P125 2.8 kW MSZ-SF15VE × 2
PUMY-P140 4.3 kW MSZ-SF15VE × 3
OCH632A

8
2-4. UNIT SPECIFICATIONS
(2) Method for identifying MULTI-S model
(1) Outdoor Unit
Outdoor unit <When using model 125 >
PU M Y - P 125 Y K M E 3 - BS
Refrigerant
R410A
Indicates equivalent
to Cooling capacity
Power supply
V: Single phase
220/230/240 V, 50 Hz
Y: 3-phase
380/400/415 V, 50 Hz
380 V, 60 Hz (YKM3 only)
Outdoor unit
model type
M-NET
control
Frequency
conversion
controller
Outdoor unit
MULTI-S
(kcal/ h)
Salt proof
type
sub
number
Electrical
box
Service Ref.
Capacity Cooling (kW)
Heating (kW)
12.5
14.0
2.9
14.0
16.0
3.5
15.5
18.0
3.9
Compressor (kW)
PUMY-P112VKM3(-BS)
PUMY-P112YKM(E)3(-BS)
PUMY-P125VKM3(-BS)
PUMY-P125YKM(E)3(-BS)
PUMY-P140VKM3(-BS)
PUMY-P140YKM(E)3(-BS)
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
(3) Operating temperature range
Notes: D.B. : Dry Bulb Temperature
W.B. : Wet Bulb Temperature
*110 to 52°C D.B. : When connecting PKFY-P15/P20/P25VBM, PFFY-P20/25/32VKM, PFFY-P20/25/32VLE(R)M, PEFY-P25/32/40VMA3-E;
and M series, S series, and P series type indoor unit.
Cooling
W.B. 15 to 24°C
D.B. −5 to 52°C*1
Heating
D.B. 15 to 27°C
W.B. −20 to 15°C
Indoor-side intake air temperature
Outdoor-side intake air temperature
■
When connecting fresh air type indoor unit
air type indoor
Capacity of Fresh
Cooling Heating
Indoor-side and Outdoor-side P80 D.B. 21 to 43:*2
W.B. 15.5 to 35:D.B.−10 to 20:*3
intake air temperature P140 D.B. 21 to 43:*2
W.B. 15.5 to 35:D.B. −5 to 20:*3
*2 Thermo-OFF (FAN-mode) automatically starts if the outdoor temp. is lower than 21 : D.B..
*3 Thermo-OFF (FAN-mode) automatically starts if the outdoor temp. is higher than 20 : D.B..
■When connecting PWFY unit
Cooling Heating
Indoor-side intake water temperature
Outdoor-side intake air temperature
• 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.
*4
*4D.B. 10 to 45:
*4W.B. −20 to 15:
OCH632A

9
■When connecting Cylinder unit or Hydrobox
*5 ATA unit: Air to Air unit (other than PWFY, Cylinder unit or Hydrobox)
*6
Cylinder unit and Hydrobox can not operate Cooling mode in connecting PUMY.
*7 When outdoor temp. is less than 7:, outlet water temp. is lowered (Refer to Figure 1).
Furthermore, outlet air temperature is lowered.
Cooling
—
*
6
—
*
6
Outlet water temperature
Outdoor temperature
DHW only
ATW Heating only
DHW + ATA Heating
*
5
ATW Heating + ATA Heating
*
5
−20 to 35:−20 to 21:7 to 35: −10 to 35:
*
7
55:Max. 55:Max. 55:Max. 45 to 55:Max.
-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
OCH632A

10
3SPECIFICATIONS
Model PUMY-P112VKM3(-BS) PUMY-P125VKM3(-BS) PUMY-P140VKM3(-BS)
Power source 1-phase 220/230/240 V, 50 Hz; 1-phase 220 V, 60 Hz
Cooling capacity
(Nominal)
kW*112.5 14.0 15.5
kcal/h*110,750 12,040 13,330
BTU/h*142,650 47,768 52,886
Power input kW 2.79 3.46 4.52
Current input A 12.87/12.32/11.80, 12.87 15.97/15.27/14.64, 15.97 20.86/19.95/19.12, 20.86
COP kW/kW 4.48 4.05 3.43
Temp. range of
cooling
Indoor temp. W.B. 15 to 24°C
Outdoor temp. D.B. −5to52°C *3, *4
Heating capacity
(Nominal)
kW*214.0 16.0 18.0
kcal/h*212,040 13,760 15,480
BTU/h*247,768 54,592 61,416
Power input kW 3.04 3.74 4.47
Current input A 14.03/13.42/12.86, 14.03 17.26/16.51/15.82, 17.26 20.63/19.73/18.91, 20.63
COP kW/kW 4.61 4.28 4.03
Temp. range of
heating
Indoor temp. D.B. 15 to 27°C
Outdoor temp. W.B. −20to15°C
Indoor unit
connectable
Total capacity 50 to 130% of outdoor unit capacity
Model/ Quantity Citymulti 15 - 140/9 15 - 140/10 15 - 140/12
Branch box 15 - 100/8 15 - 100/8 15 - 100/8
Mixed system
15 - 140*5/10 15 - 140*5/10*615 - 140*5/10*6
Sound pressure level
(measured in anechoic room)
dB <A> 49/51 50/52 51/53
Power pressure level
(measured in anechoic room)
dB <A> 69/71 70/72 71/73
Refrigerant
piping diameter
Liquid pipe mm (inch) 9.52 (3/8)
Gas pipe mm (inch) 15.88 (5/8)
FAN *2 Type × Quantity Propeller Fan x 2
Airowrate m³/min 110
L/s 1,833
cfm 3,884
Control, Driving mechanism DC control
Motor output kW 0.06+0.06
External static press. 0
Compressor Type × Quantity Scroll hermetic compressor x 1
Manufacture Mitsubishi Electric Corporation
Starting method Inverter
Capacity control % Cooling 26 to 100
Heating 20 to 100
Cooling 24 to 100
Heating 18 to 100
Cooling 21 to 100
Heating 17 to 100
Motor output kW 2.9 3.5 3.9
Case heater kW 0
Lubricant FV50S (2.3litter)
Externalnish Galvanized Steel Sheet Munsell No. 3Y 7.8/1.1
External dimension H × W × D mm 1,338 × 1,050 × 330(+25)
inch 52-11/16 × 41-11/ 32 × 13 (+1)
Protection
devices
High pressure protection High pressure Switch
Inverter circuit (COMP./FAN) Overcurrent detection, Overheat detection(Heat sink thermistor)
Compressor Compressor thermistor, Overcurrent detection
Fan motor Overheating, Voltage protection
Refrigerant Type × original charge R410A 4.8 kg
Control Electronic expansion valve
Net weight kg (lb) 122 (269)
Heat exchanger Cross Fin and Copper tube
HIC circuit (HIC: Heat Inter-Changer) HIC circuit
Defrosting method Reversed refrigerant circuit
Drawing External BK01N346
Wiring BH78B813
Standard
attachment
Document Installation Manual
Accessory Grounded lead wire x2
Optional parts Joint: CMY-Y62-G-E, Header: CMY-Y64/68-G-E, Branch box: PAC-MK31/32/51/52BC(B)
Remarks Unit converter
kcal/h = kW × 860
BTU/h = kW × 3,412
cfm = m³/min × 35.31
lb = kg/0.4536
Abovespecicationdatais
subject to rounding
variation.
*1Nominal cooling conditions *2Nominal heating conditions
Indoor :
27°C D.B./19°C W.B. [81°F D.B/66°F W.B.] 20°C D.B. [68°F D.B.]
Outdoor : 35°C D.B. [95°F D.B.]
7°C DB/6°C W.B. [45°F D.B./43°F W.B.]
Pipe length : 7.5 m [24-9/16 ft] 7.5 m [24-9/16 ft]
Level difference : 0 m [0 ft] 0 m [0 ft]
Notes : 1. Nominal conditions *1, *2are subject to ISO 15042.
 2.Duetocontinuingimprovement,abovespecicationsmaybesubjecttochangewithoutnotice.
*3 10 to 52:D.B. [50 to 126_F D.B.], when connecting following models: PKFY-P15/20/25VBM, PFFY-P20/25/32VLE(R)M, PFFY-
P20/25/32VKM, PEFY-P25/32/40VMA3; and M series, S series, and P series type indoor unit.
*4−15to52:D.B. [50 to 126_F D.B.], when using an optional air protect guide [PAC-SH95AG-E]. However, this condition does not
apply to the indoor unit listed in *3.
*5 Up to P100 when connecting via branch box.
*6 Up to 11 units when connecting via 2 branch boxes.
OCH632A

11
Model PUMY-P112YKM3(-BS) PUMY-P125YKM3(-BS) PUMY-P140YKM3(-BS)
Power source 3-phase 380/400/415 V, 50 Hz; 3-phase 380 V, 60 Hz
Cooling capacity
(Nominal)
kW *112.5 14.0 15.5
kcal/h *110,750 12,040 13,330
BTU/h *142,650 47,768 52,886
Power input kW 2.79 3.46 4.52
Current input A 4.99/4.74/4.57, 4.99 5.84/5.55/5.35, 5.84 7.23/6.87/6.62, 7.23
COP kW/kW 4.48 4.05 3.43
Temp. range of
cooling
Indoor temp. W.B. 15 to 24°C
Outdoor temp. D.B. −5to52°C *3, *4
Heating capacity
(Nominal)
kW *214.0 16.0 18.0
kcal/h *212,040 13,760 15,480
BTU/h *247,768 54,592 61,416
Power input kW 3.04 3.74 4.47
Current input A 5.43/5.16/4.98, 5.43 6.31/6.00/5.78, 6.31 7.15/6.79/6.55, 7.15
COP kW/kW 4.61 4.28 4.03
Temp. range of
heating
Indoor temp. D.B. 15 to 27°C
Outdoor temp. W.B. −20to15°C
Indoor unit
connectable
Total capacity 50 to 130% of outdoor unit capacity
Model/Quantity Citymulti 15 - 140/9 15 - 140/10 15 - 140/12
Branch box 15 - 100/8 15 - 100/8 15 - 100/8
Mixed system 15 - 140*5/10 15 - 140*5/10*615 - 140*5/10*6
Sound pressure level
(measured in anechoic room)
dB <A> 49/51 50/52 51/53
Power pressure level
(measured in anechoic room)
dB <A> 69/71 70/72 71/73
Refrigerant
piping diameter
Liquid pipe mm (inch) 9.52 (3/8)
Gas pipe mm (inch) 15.88 (5/8)
FAN *2 Type × Quantity Propeller Fan × 2
Airowrate K/min 110
L/s 1,833
cfm 3,884
Control, Driving mechanism DC control
Motor output kW 0.06+0.06
External static press. 0
Compressor Type x Quantity Scroll hermetic compressor × 1
Manufacture Mitsubishi Electric Corporation
Starting method Inverter
Capacity control % Cooling 26 to 100
Heating 20 to 100
Cooling 24 to100
Heating 18 to 100
Cooling 21 to 100
Heating 17 to 100
Motor output kW 2.9 3.5 3.9
Case heater kW 0
Lubricant FV50S(2.3litter)
Externalnish Galvanized Steel Sheet Munsell No. 3Y 7.8/1.1
External dimension H × W × D mm 1338 × 1050 × 330(+25)
inch 52-11/16 × 41-11/32 × 13 (+1)
Protection
devices
High pressure protection High pressure Switch
Inverter circuit (COMP./FAN) Overcurrent detection, Overheat detection(Heat sink thermistor)
Compressor Compressor thermistor, Over current detection
Fan motor Overheating, Voltage protection
Refrigerant Type × original charge R410A 4.8 kg
Control Electronic expansion valve
Net weight kg (lb) 125 (276)
Heat exchanger Cross Fin and Copper tube
HIC circuit (HIC: Heat Inter-Changer) HIC circuit
Defrosting method Reversed refrigerant circuit
Drawing External BK01N339
Wiring BH78B814
Standard
attachment
Document Installation Manual
Accessory Grounded lead wire x2
Optional parts Joint: CMY-Y62-G-E, Header: CMY-Y64/68-G-E, Branch box: PAC-MK31/32/51/52BC(B)
Unit converter
kcal/h = kW × 860
BTU/h = kW × 3,412
cfm = m³/min × 35.31
lb = kg/0.4536
Abovespecicationdatais
subject to rounding
variation
.
*1Nominal cooling conditions *2Nominal heating conditions
Indoor :
27°C D.B./19°C W.B. [81°F D.B/66°F W.B.] 20°C D.B. [68°F D.B.]
Outdoor : 35°C D.B. [95°F D.B.]
7°C DB/6°C W.B. [45°F D.B./43°F W.B.]
Pipe length : 7.5 m [24-9/16 ft] 7.5 m [24-9/16 ft]
Level difference : 0 m [0 ft] 0 m [0 ft]
Remarks:
Notes : 1. Nominal conditions *1, *2are subject to ISO 15042.
 2.Duetocontinuingimprovement,abovespecicationsmaybesubjecttochangewithoutnotice.
*3 10 to 52:D.B. [50 to 126_F D.B.], when connecting following models: PKFY-P15/20/25VBM, PFFY-P20/25/32VLE(R)M, PFFY-
P20/25/32VKM, PEFY-P25/32/40VMA3; and M series, S series, and P series type indoor unit.
*4−15to52:D.B. [50 to 126_F D.B.], when using an optional air protect guide [PAC-SH95AG-E]. However, this condition does not
apply to the indoor unit listed in *3.
*5 Up to P100 when connecting via branch box.
*6 Up to 11 units when connecting via 2 branch boxes.
OCH632A

12
Model PUMY-P112YKME3(-BS) PUMY-P125YKME3(-BS) PUMY-P140YKME3(-BS)
Power source 3-phase 380/400/415 V, 50 Hz
Cooling capacity
(Nominal)
kW*112.5 14.0 15.5
kcal/h*110,750 12,040 13,330
BTU/h*142,650 47,768 52,886
Power input kW 2.79 3.46 4.52
Current input A 4.46/4.24/4.09 5.53/5.26/5.07 7.23/6.87/6.62
COP kW/kW 4.48 4.05 3.43
Temp. range of
cooling
Indoor temp. W.B. 15 to 24°C
Outdoor temp. D.B. −5to52°C *3, *4
Heating capacity
(Nominal)
kW*214.0 16.0 18.0
kcal/h*212,040 13,760 15,480
BTU/h*247,768 54,592 61,416
Power input kW 3.04 3.74 4.47
Current input A 4.86/4.62/4.45 5.98/5.68/5.48 7.15/6.79/6.55
COP kW/kW 4.61 4.28 4.03
Temp. range of
heating
Indoor temp. D.B. 15 to 27°C
Outdoor temp. W.B. −20to15°C
Indoor unit
connectable
Total capacity 50 to 130% of outdoor unit capacity
Model/Quantity Citymulti 15 - 140/9 15 - 140/10 15 - 140/12
Branch box 15 - 100/8 15 - 100/8 15 - 100/ 8
Mixed system
15 - 140*5/10 15 - 140*5/10*615 - 140*5/10*6
Sound pressure level
(measured in anechoic room)
dB <A> 49/51 50/52 51/ 53
Power pressure level
(measured in anechoic room)
dB <A> 69/71 70/72 71/73
Refrigerant
piping diameter
Liquid pipe mm (inch) 9.52 (3/8)
Gas pipe mm (inch) 15.88 (5/8)
FAN *2 Type × Quantity Propeller Fan × 2
Airowrate K/min 110
L/s 1,833
cfm 3,884
Control, Driving mechanism DC control
Motor output kW 0.06+0.06
External static press. 0
Compressor Type × Quantity Scroll hermetic compressor × 1
Manufacture Mitsubishi Electric Corporation
Starting method Inverter
Capacity control % Cooling 26 to 100
Heating 20 to 100
Cooling 24 to 100
Heating 18 to 100
Cooling 21 to 100
Heating 17 to 100
Motor output kW 2.9 3.5 3.9
Case heater kW 0
Lubricant FV50S(2.3litter)
Externalnish Galvanized Steel Sheet Munsell No. 3Y 7.8/1.1
External dimension HxWxD mm 1,338 × 1,050 × 330(+25)
inch 52-11/16 × 41-11/32 × 13 (+1)
Protection
devices
High pressure protection High pressure Switch
Inverter circuit (COMP./FAN) Overcurrent detection, Overheat detection(Heat sink thermistor)
Compressor Compressor thermistor, Over current detection
Fan motor Overheating, Voltage protection
Refrigerant Type × original charge R410A 4.8kg
Control Electronic expansion valve
Net weight kg (lb) 136 (300)
Heat exchanger Cross Fin and Copper tube
HIC circuit (HIC: Heat Inter-Changer) HIC circuit
Defrosting method Reversed refrigerant circuit
Drawing External BK01N339
Wiring BH78J358
Standard
attachment
Document Installation Manual
Accessory Grounded lead wire x2
Optional parts Joint: CMY-Y62-G-E, Header: CMY-Y64/68-G-E, Branch box: PAC-MK31/32/51/52BC(B)
Remarks
Unit converter
kcal/h = kW × 860
BTU/h = kW × 3,412
cfm = m³/min × 35.31
lb = kg/0.4536
Abovespecicationdatais
subject to rounding
variation.
*1Nominal cooling conditions *2Nominal heating conditions
Indoor :
27°C D.B./19°C W.B. [81°F D.B/66°F W.B.] 20°C D.B. [68°F D.B.]
Outdoor : 35°C D.B. [95°F D.B.]
7°C DB/6°C W.B. [45°F D.B./43°F W.B.]
Pipe length : 7.5 m [24-9/16 ft] 7.5 m [24-9/16 ft]
Level difference : 0 m [0 ft] 0 m [0 ft]
Notes : 1. Nominal conditions *1, *2are subject to ISO 15042.
 2.Duetocontinuingimprovement,abovespecicationsmaybesubjecttochangewithoutnotice.
*3 10 to 52:D.B. [50 to 126_F D.B.], when connecting following models: PKFY-P15/20/25VBM, PFFY-P20/25/32VLE(R)M, PFFY-
P20/25/32VKM, PEFY-P25/32/40VMA3; and M series, S series, and P series type indoor unit.
*4−15to52:D.B. [50 to 126_F D.B.], when using an optional air protect guide [PAC-SH95AG-E]. However, this condition does not
apply to the indoor unit listed in *3.
*5 Up to P100 when connecting via branch box.
*6 Up to 11 units when connecting via 2 branch boxes.
OCH632A

13
4
Capacity of indoor unit
Model 20
Model Number
for indoor unit
Model
Capacity 2.2
Model 15
1.7
Model 25
2.8
Model 32
3.6
Model 40
4.5
Model 50
5.6
Model 63
7.1
Model 71
8.0
Model 80
9.0
Model 100
11.2
Model 125
14.0
Model 140
16.0
Model
Capacity 2.01.5 2.2 2.5 3.5 4.2 5.0 6.0 7.1
P•FY Series
M Series
S Series
P Series
Model 20
Model Number
for indoor unit
Model 15 Model 22 Model 25 Model 35 Model 42 Model 50 Model 60 Model 71
1.8
Model 18
8.0
Model 80
10.0
Model 100
DATA
Indoor Temperature [°CW.B.]
Ratio of cooling capacity
15 16 17 18 19 20 21 22 23 24
0.4
0.6
0.8
1.0
1.2
<Cooling>
Design Condition
Outdoor Design Dry Bulb Temperature 40ºC
Total Cooling Load 9.0 kW
Room1
Indoor Design Dry Bulb Temperature 27ºC
Indoor Design Wet Bulb Temperature 20ºC
Cooling Load 4.0 kW
Room2
Indoor Design Dry Bulb Temperature 24ºC
Indoor Design Wet Bulb Temperature 18ºC
Cooling Load 4.5 kW
<Other>
Indoor/Outdoor Equivalent Piping Length 100 m
1. Cooling Calculation
(1) Temporary Selection of Indoor Units
Room1
PEFY-P40 4.5 kW (Rated)
Room2
PEFY-P50 5.6 kW (Rated)
(2) Total Indoor Units Capacity
P40 + P50 = P90
(3) Selection of Outdoor Unit
The P112 outdoor unit is selected as total indoor units capacity is P90
PUMY-P112 12.5 kW
(4) Total Indoor Units Capacity Correction Calculation
Room1
Indoor Design Wet Bulb Temperature Correction (20ºC)
1.04 (Refer to Figure 1)
Figure 1 Indoor unit temperature correction
To be used to correct indoor unit only
Figure 2 Outdoor unit temperature correction
To be used to correct outdoor unit only
Figure 3 Correction of refrigerant piping length
Room2
Indoor Design Wet Bulb Temperature Correction (18ºC)
0.90 (Refer to Figure 1)
CTi = Σ (Indoor Unit Rating × Indoor Design Temperature Correction)
= 4.5 × 1.04 + 5.6 × 0.90
= 9.7 kW
(5) Outdoor Unit Correction Calculation
Outdoor Design Dry Bulb Temperature Correction (40ºC)
0.86 (Refer to Figure 2)
Piping Length Correction (160 m) 0.85 (Refer to Figure 3)
Total Outdoor Unit Capacity (CTo)
Total Indoor Units Capacity (CTi)
CTo = Outdoor Rating × Outdoor Design Temperature Correction × Piping Length Correction
= 12.5 × 0.86 × 0.85
= 9.14 kW
(6) Determination of Maximum System Capacity
Comparison of Capacity between Total Indoor Units Capacity (CTi) and Total Outdoor Unit Capacity (CTo)
CTi = 9.7 > CTo = 9.14, thus, select CTo.
CTx = CTo = 9.14 kW
(7) Comparison with Essential Load
Against the essential load 9.0kW, the maximum system capacity is 9.14 kW: Proper outdoor units have been selected.
(8) Calculation of Maximum Indoor Unit Capacity of Each Room
CTx = CTo, thus, calculate by the calculation below
Room1
Maximum Capacity × Room1 Capacity after the Temperature Correction/(Room1,2 Total Capacity after the Temperature Correction
= 9.14 × (4.5 × 1.04)/(4.5 × 1.04 + 5.6 × 0.90)
= 4.4 kW OK: fulfills the load 4.0 kW
Room2
Maximum Capacity × Room2 Capacity after the Temperature Correction/(Room1,2 Total Capacity after the Temperature Correction)
= 9.14 × (5.60 × 0.90)/(4.5 × 1.04 + 5.6 × 0.90)
= 4.7 kW OK: fulfills the load 4.5 kW
Go on to the heating trial calculation since the selected units fulfill the cooling loads of Room 1, 2.
Ratio of cooling capacity
°CD.B.
19°C W.B.
Indoor
Temperature
Total capacity of indoor unit
Outdoor Temperature
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
−5 0 5 10 15 20 25 30 35 40 45
Cooling capacity correction factor
0.50
0.55
0.60
0.65
0.70
0.75
0.80
0.85
0.90
0.95
1.00
0 20 40 60 80 100 120 140 160
Piping equivalent length ( m)
6.3
12.5
9.4
16.2
Note: If CTx = CTi, please refer to the <Heating> section to calculate the Maximum Indoor Unit Capacity of Each Room.
4-1. SELECTION OF COOLING/HEATING UNITS
OCH632A

14
Capacity of indoor unit
Model 20
Model Number
for indoor unit
Model
Capacity 2.5
Model 15
1.9
Model 25
3.2
Model 32
4.0
Model 40
5.0
Model 50
6.3
Model 63
8.0
Model 71
9.0
Model 80
10.0
Model 100
12.5
Model 125
16.0
Model 140
18.0
Model
Capacity 2.31.7 2.5 2.9 4.0 4.8 5.7 6.9 8.1
P•FY Series
M Series
S Series
P Series
Model 20
Model Number
for indoor unit
Model 15 Model 22 Model 25 Model 35 Model 42 Model 50 Model 60 Model 71
2.1
Model 18
9.3
Model 80
11.2
Model 100
<Heating>
Design Condition
Outdoor Design Wet Bulb Temperature 2ºC
Total Heating Load 10.3 kW
Room1
Indoor Design Dry Bulb Temperature 21ºC
Heating Load 4.8 kW
Room2
Indoor Design Dry Bulb Temperature 23ºC
Heating Load 5.5 kW
<Other>
Indoor/Outdoor Equivalent Piping Length 100 m
2. Heating Calculation
(1) Temporary Selection of Indoor Units
Room1
PEFY-P40 5.0 kW (Rated)
Room2
PEFY-P50 6.3 kW (Rated)
(2) Total Indoor Units Capacity
P40 + P50 = P90
(3) Selection of Outdoor Unit
The P112 outdoor unit is selected as total indoor units capacity is P90
PUMY-P112 14.0 kW
(4) Total Indoor Units Capacity Correction Calculation
Room1
Indoor Design Dry Bulb Temperature Correction (21ºC)
0.96 (Refer to Figure 4)
Table 1 Table of correction factor at frost and defrost
Room2
Indoor Design Dry Bulb Temperature Correction (23ºC)
0.88 (Refer to Figure 4)
CTi = Σ (Indoor Unit Rating × Indoor Design Temperature Correction)
= 5.0 × 0.96 + 6.3 × 0.88
= 10.3 kW
(5) Outdoor Unit Correction Calculation
Outdoor Design Wet Bulb Temperature Correction (2ºC)
1.0 (Refer to Figure 5)
Piping Length Correction (100 m)
Defrost Correction
0.94 (Refer to Figure 6)
0.89 (Refer to Table 1)
Total Outdoor Unit Capacity (CTo)
Total Indoor Units Capacity (CTi)
CTo = Outdoor Unit Rating ×Outdoor Design Temperature Correction ×Piping Length
Correction ×Defrost Correction
= 14.0 × 1.0 × 0.94 × 0.89
= 11.7 kW
(6) Determination of Maximum System Capacity
Comparison of Capacity between Total Indoor Units Capacity (CTi) and Total Outdoor Unit Capacity (CTo)
CTi = 10.3 < CTo = 11.7, thus, select CTi.
CTx = CTi = 10.3 kW
(7) Comparison with Essential Load
Against the essential load 10.3kW, the maximum system capacity is 10.3 kW: Proper indoor units have been selected.
(8) Calculation of Maximum Indoor Unit Capacity of Each Room
CTx = CTo, thus, calculate by the calculation below
Room1
Indoor Unit Rating ×Indoor Design Temperature Correction
= 5.0 × 0.96
= 4.8 kW OK: fulfills the load 4.8 kW
Room2
Indoor Unit Rating ×Indoor Design Temperature Correction
= 6.3× 0.88
= 5.5 kW OK: fulfills the load 5.5 kW
Completed selecting units since the selected units fulfill the heating loads of Room 1, 2.
Figure 4 Indoor unit temperature correction
To be used to correct indoor unit only
Figure 5 Outdoor unit temperature correction
To be used to correct outdoor unit only
Figure 6 Correction of refrigerant piping length
1
0.90
0.80
0.95
0.85
0.75
0.65
0.70
200 40 60 80 100 120 140 160 180 200
Heating capacity correction factor
Piping equivalent length (m)
15 16 17 18 19 20 21 22 23 24 25 26 27
0.6
0.7
0.8
0.9
1.0
1.1
1.2
Ratio of heating capacity
Indoor Temperature [°CD.B.]
−20 −15 −10 −5 0 5 10 15
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
Ratio of heating capacity
Outdoor Temperature [°C W.B.]
20°C D.B
Note: If CTx = CTo, please refer to the <Cooling> section to calculate the Maximum Indoor Unit Capacity of Each Room.
Outdoor inlet air temp. °C 6 4 2 0 −2−4−6−8−10 −15 −20
PUMY-P112,125,140VKM3 1.0 0.98 0.89 0.88 0.89 0.90 0.95 0.95 0.95 0.95 0.95
PUMY-P112,125,140YKM(E)3 1.0 0.98 0.89 0.88 0.89 0.90 0.95 0.95 0.95 0.95 0.95
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4-2. CORRECTING BY TEMPERATURE
15 16 17 18 19 20 21 22 23 24
0.4
0.6
0.8
1.0
1.2
Ratio of cooling capacity
Indoor Temperature [°CW.B.]
Ratio of cooling capacity
Outdoor Temperature [°C D.B.]
Indoor Temperature
-5.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 50.0 52.0
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
19°C W.B
Ratio of power input
Outdoor Temperature [°C D.B.]
Indoor Temperature
-15.0 -10.0 -5.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 50.0 52.0
0.0
0.2
0.4
0.6
0.8
1.0
1.2
16°C W.B
18°C W.B
19°C W.B
20°C W.B 22°C W.B 24°C W.B
CITY MULTI could have varied capacity at different designing temperature. Using the nominal cooling/heating capacity value
and the ratio below, the capacity can be observed at various temperature.
PUMY
P112 P125 P140
Nominal
cooling
capacity
kW 12.5 14.0 15.5
BTU/h 42,650 47,768 52,886
Input kW 2.79 3.46 4.52
Figure 7 Indoor unit temperature correction
To be used to correct indoor unit capacity only
Figure 8 Outdoor unit temperature correction
To be used to correct outdoor unit capacity only
<Cooling>
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<Heating>
15 16 17 18 19 20 21 22 23 24 25 26 27
0.6
0.7
0.8
0.9
1.0
1.1
1.2
Ratio of heating capacity
Indoor Temperature [°CD.B.]
Ratio of heating capacity
Outdoor Temperature [°C W.B.]
20°C D.B
-20.0 -15.0 -10.0 -5.0 0.0 5.0 10.0 15.0
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
Ratio of power input
Outdoor Temperature [°C W.B.]
Indoor Temperature
-20.0 -15.0 -10.0 -5.0 0.0 5.0 10.0 15.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
25°C D.B
15°C D.B
20°C D.B
Figure 9 Indoor unit temperature correction
To be used to correct indoor unit capacity only
Figure 10 Outdoor unit temperature correction
To be used to correct outdoor unit capacity only
PUMY
P112 P125 P140
Nominal
heating
capacity
kW 14.0 16.0 18.0
BTU/h 47,768 54,592 61,416
Input kW 3.04 3.74 4.47
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Operation
PUMY-P112VKM3(-BS)
PUMY-P112YKM3(-BS)
PUMY-P112YKME3(-BS)
PUMY-P125VKM3(-BS)
PUMY-P125YKM3(-BS)
PUMY-P125YKME3(-BS)
PUMY-P140VKM3(-BS)
PUMY-P140YKM3(-BS)
PUMY-P140YKME3(-BS)
Operating
conditions
Ambient
temperature
Indoor DB/
WB
27°C/19°C 20°C/— 27°C/19°C 20°C/— 27°C/19°C 20°C/—
Outdoor 35°C 7°C/6°C 35°C 7°C/6°C 35°C 7°C/6°C
Indoor unit
No. of connected units Unit 222
No. of units in operation 222
Model — 50 x 1/63 x 1 63 × 2 63 x 1/80×1
Piping
Main pipe
m
555
Branch pipe 2.5 2.5 2.5
Total pipe length 10 10 10
Fan speed — Hi Hi Hi
Amount of refrigerant kg 7.2 7.2 7.2
Outdoor unit
Electric current A 16.17/5.26 17.38/5.67 21.67/7.12 21.91/7.22 25.84/8.58 25.54/8.48
Voltage V 230/400 230/400 230/400
Compressor frequency Hz 67 69 84 86 96 96
LEV
opening Indoor unit Pulse 357 421 447 525 511 586
Pressure High pressure/Low pressure
MPa G 2.70/0.94 2.86/0.70 2.86/0.88 2.87/0.67 2.95/0.85 2.95/0.65
Temp. of
each section
Outdoor
unit
Discharge
°C
67.0 71.9 69.7 72.1 70.7 73.2
Heat exchanger outlet 40.2 2.0 40.8 1.3 43.7 0.9
Accumulator inlet 8.7 1.0 8.0 0.2 5.6 −0.6
Compressor inlet 10.7 1.3 9.1 0.1 7.8 −0.7
Indoor unit LEV inlet 18.9 32.4 17.7 33.0 17.0 33.4
Heat exchanger inlet 12.3 55.5 11.1 55.7 10.4 56.8
4-3. STANDARD OPERATION DATA (REFERENCE DATA)
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4-4. STANDARD CAPACITY DIAGRAM
Before calculating the sum of total capacity of indoor units, please convert the value into the kW model capacity following the formula on
"4-1-1. Method for obtaining system cooling and heating capacity".
Y-Type
V-Type
1.0
2.0
3.0
4.0
5.0
6.0
Current(A)
2.0
2.0
4.0
6.0
8.0
12.0
10.0
16.0
14.0
4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0
Capacity(kW)
Total capacity of indoor units(kW)
2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0
Total capacity of indoor units(kW)
2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0
Total capacity of indoor units(kW)
2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0
Total capacity of indoor units(kW)
0.0
5.0
10.0
15.0
20.0
Current(A)
0.5
1.0
1.5
2.0
2.5
3.0
3.5
Input(kW)
220V
230V
240V
380V
400V
415V
4-4-1. PUMY-P112VKM3(-BS) PUMY-P112YKM(E)3(-BS) <cooling>
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Y-Type
V-Type
1.0
2.0
3.0
4.0
5.0
6.0
Current(A)
2.0
2.0
4.0
6.0
8.0
12.0
10.0
16.0
14.0
4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 200.
Capacity(kW)
Total capacity of indoor units(kW)
2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0
Total capacity of indoor units(kW)
2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0
Total capacity of indoor units(kW)
Current(A)
0.5
1.0
1.5
2.0
2.5
3.0
3.5
Input(kW)
2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0
0.0
5.0
10.0
15.0
20.0
Total capacity of indoor units(kW)
PUMY-P112VKM
220V
230V
240V
380V
400V
415V
4-4-2. PUMY-P112VKM3(-BS) PUMY-P112YKM(E)3(-BS) <heating>
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4-4-3. PUMY-P125VKM3(-BS) PUMY-P125YKM(E)3(-BS) <cooling>
Before calculating the sum of total capacity of indoor units, please convert the value into the kW model capacity following the formula on
"4-1-1. Method for obtaining system cooling and heating capacity".
Y-Type
1.0
2.0
3.0
4.0
5.0
6.0
Current(A)
2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0
Total capacity of indoor units(kW)
Current(A) Input(kW)
2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0
Total capacity of indoor units(kW)
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
2.0
2.0
4.0
6.0
8.0
12.0
10.0
16.0
18.0
14.0
4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0
Capacity(kW)
Total capacity of indoor units(kW)
V-Type
Total capacity of indoor units(kW)
2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0
0.0
5.0
10.0
15.0
20.0
220V
230V
240V
380V
400V
415V
OCH632A