Mitsubishi Electric CITY MULTI PUMY-P200YKM1-BS Operating manual

<Outdoor unit>
[Model Name]
PUMY-P200YKM1 PUMY-P200YKM1
PUMY-P200YKM1-BS
[Service Ref.]
Salt proof model
PUMY-P200YKM1-BS
TECHNICAL & SERVICE MANUAL
OUTDOOR UNIT
HFC
utilized
R410A
Model name
indication PARTS CATALOG (OCB634)
CONTENTS
1. SAFETY PRECAUTION .....................................2
2. OVERVIEW OF UNITS.......................................5
3. SPECIFICATIONS ..............................................9
4. DATA.................................................................10
5. OUTLINES AND DIMENSIONS .......................18
6. WIRING DIAGRAM...........................................19
7. NECESSARY CONDITIONS FOR SYSTEM CONSTRUCTION....... 20
8. TROUBLESHOOTING......................................38
9. ELECTRICAL WIRING ................................... 115
10. REFRIGERANT PIPING TASKS ....................121
11. DISASSEMBLY PROCEDURE .......................128
Note:
• This service manual
describes technical data of
the outdoor units only.
No. OCH634
REVISED EDITION-C
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
July 2019
Revision:
• Some descriptions have
been modified in REVISED
EDITION-C.
OCH634 REVISED EDITION-B
is void.

2
OCH634C
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.

3
OCH634C
Electronic weighing scale
Unit
[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 —

4
OCH634C
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.)
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.)
1/4
3/8
1/2
5/8
3/4
7/8
6.35
9.52
12.70
15.88
19.05
22.2
0.8
0.8
0.8
1.0
1.0*
1.0*
0.8
0.8
0.8
1.0
1.0
1.0
Nominal
dimensions (in)
Diagram below: Piping diameter and thickness
Outside
diameter (mm)
Thickness (mm)
R410A R22
* Use 1/2 H or H pipes.
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

5
OCH634C
2
2-1. SYSTEM CONSTRUCTION
Remote
controller
Name
Model number
Functions
M-NET remote controller
PAR-F27MEA-E
• 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
*1PUMY 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".
*2When 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: [23˚F]).
*3
When connecting the CONNECTION KIT (PAC-LV11M-J) and an M-series indoor unit, refer to the installation manual for the CONNECTION KIT.
*4 Authorized connectable indoor units are only as follows; PUMY-P200 : PEFY-P40VMA3 × 2 + PEFY-P63VMA3 × 2
*5 Do not connect Lossnay remote controller(s). (PZ-61DR-E, PZ-43SMF-E, PZ-52SF-E, PZ-60DR-E)
Decorative panel
OVERVIEW OF UNITS
Model
Capacity
Cassette Ceiling Ceiling
Concealed
Wall
Mounted
Ceiling
Suspended
Floor standing Ceiling concealed
Lossnay
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
*5
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
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
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
40VMA3-E*4
40VMH-E
40VHM-E 40VKM-E 40VLEM-E
40VKM-E2
40VLRM-E
40VLRMM-E
–40VM-E –
M series indoor unit *3
MSZ-GE series
MSZ-EF Series
MSZ-SF 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
63VMA3-E*4
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
125 –
125VBM-E 125VLMD-E –
125VMA(L)-E
125VMH-E
– 125VKM-E – – –125VM-E –
140 – – –
–
140VMA(L)-E
140VMH-E
– – – –140VMH-E-F – –
200 – – –
–
200VMHS-E
200VMH-E
– – –– 200VMH-E-F – –
M series remote controller
Outdoor unit
8HP
PUMY-P200YKM1
PUMY-P200YKM1-BS
Applicable
indoor unit
Capacity Type 15 to Type 200
Number of units 1 to 12 unit
Total system capacity range 50 to 130% of outdoor unit capacity *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)

6
OCH634C
2-2. SYSTEM CONSTRUCTION (BRANCH BOX SYSTEM)
Note: The lineup of a connectable indoor unit depends on a district/areas/country.
Model
[kW type]
Capacity
Wall Mounted
Floor
standing
1-way
ceiling
cassette
Ceiling concealed Ceiling
suspended
4-way ceiling cassette
Low static
pressure
Middle static
pressure 2 by 2 type Standard
MSZ-FH MSZ-EF
MSZ-GF MSZ-SF MFZ-KJ MLZ-KA SEZ-KD PEAD-RP PCA-RP SLZ-KF PLA-RP
15 ─ ─ ─
15VA ─ ─ ─ ─ ─ ─ ─
18 ─18VE ─ ─ ─ ─ ─ ─ ─ ─ ─
20 ─22VE ─
20VA ─ ─ ─ ─ ─ ─ ─
22 ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─
25 25VE 25VE ─
25VE 25VE 25VA 25VAQ(L) ─ ─ 25VA2 ─
35 35VE 35VE ─
35VE 35VE 35VA 35VAQ(L) ─ 35KAQ 35VA2
35BA
35EA
42 ─42VE ─ 42VE ─ ─ ─ ─ ─ ─
50 50VE 50VE ─
50VE 50VE 50VA 50VAQ(L) 50JA(L)Q 50KAQ 50VA2
50BA
50EA
60 ─ ─ 60VE ─ ─ ─ 60VAQ(L) 60JA(L)Q 60KAQ ─
60BA
60EA
71 ─ ─ 71VE ─ ─ ─ 71VAQ(L) 71JA(L)Q 71KAQ ─
71BA
70EA
100 ─ ─ ─ ─ ─ ─ ─ 100JA(L)Q 100KAQ ─
100BA
100EA
Branch box PAC-MK51BC(B) PAC-MK31BC(B) Note: A maximum of 2 branch boxes can be
connected to 1 outdoor unit
Number of branches
Indoor unit that
can be connected
5 branches
(MAX. 5 units)
3 branches
(MAX. 3 units)
Option Optional accessories of indoor units and outdoor units are available.
2- branch pipe (joint): Optional parts
In case of using 1- branch box No need
In case of using 2- branch boxes
Model name Connection method
MSDD-50AR-E are
MSDD-50BR-E brazing
Select a model according to the connection method.
Outdoor unit
8HP
PUMY-P200YKM1
PUMY-P200YKM1-BS
Applicable
indoor unit
Capacity kW unit: Type 15 to Type 100
Number of units 2 to 8 units
Total system capacity range 50 to 130 % of outdoor unit capacity (11.2 to 29.1 kW)
Branch box
that can be
connected
Number of units 1 to 2 units*
*The maximum total capacity of the units that can be
connected to each branch box is 20.2 kW.

7
OCH634C
2-3. SYSTEM CONSTRUCTION (MIXED SYSTEM)
Outdoor unit
8HP
PUMY-P200YKM1
PUMY-P200YKM1-BS
Applicable
indoor unit
Capacity
CITY MULTI indoor unit Type 15 to Type 200
Via branch box kW unit: Type 15 to Type 100
Number of units
Via branch box CITY MULTI indoor
1-branch box *1 5 5
2-branch box *1 83
Total system capacity range 11.2 to 29.1 kW
50 to 130% of outdoor unit capacity
*1 The maximum total capacity of the units that can be
connected to each branch box is 20.2 kW.
Branching pipe
components
CMY-Y62-G-E CMY-Y64-G-E CMY-Y68-G-E Branch box
Number of
branches
PAC-MK51BC(B) PAC-MK31BC(B)
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 *2
M series
S series
P series
indoor units *2
MA
remote
controller
MA
remote
controller
M series
remote
controller
CONNECTION KIT
PAC-LV11M-J
M series indoor unit
M series
remote
controller
*2 Refer to “2-1. SYSTEM CONSTRUCTION” and/or “2-2. SYSTEM CONSTRUCTION (BRANCH BOX SYSTEM) for more detail.

8
OCH634C
2-4. SYSTEM SPECIFICATIONS
(2) Method for identifying MULTI-S model
(1) Outdoor Unit
Outdoor unit <When using model 200 >
PU M Y - P 200 Y K M 1 - BS
Refrigerant
R410A
Indicates equivalent
to Cooling capacity
Power supply
Y: 3-phase
380/400/415 V, 50/60 Hz
Outdoor unit
model type
Sub-number
M-NET
control
Frequency
conversion
controller
Outdoor unit
MULTI-S
(kcal/h)
Salt proof
type
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
*10 to 52°C D.B. : When connecting PKFY-P15/P20/P25VBM, PFFY-P20/25/32VKM, PFFY-P20/25/32VLE(R)M, PEFY-P40/63VMA3-E; and
M series, S series, and P series type indoor unit.
Service Ref. PUMY-P200YKM1
PUMY-P200YKM1-BS
Capacity Cooling (kW) 22.4
Heating (kW) 25.0
Compressor (kW) 5.4
Cooling Heating
Indoor-side intake air temperature W.B. 15 to 24°C D.B. 15 to 27°C
Outdoor-side intake air temperature D.B. −5 to 52°C* W.B. −20 to 15°C
■ When connecting fresh air type indoor unit
Capacity of Fresh
air type indoor Cooling Heating
Indoor-side and Outdoor-side
intake air temperature P200 D.B. 21 to 43°C*
W.B. 15.5 to 35°C D.B. −10 to 20°C**
*Thermo-OFF (FAN-mode) automatically starts if the outdoor temperature is lower than 21°C D.B.
**Thermo-OFF (FAN-mode) automatically starts if the outdoor temperature is higher than 20°C D.B.

9
OCH634C
3SPECIFICATIONS
Service Ref. PUMY-P200YKM1, PUMY-P200YKM1-BS
Power source 380/400/415 V, 50 Hz
Cooling capacity
(Nominal)
kW *1 22.4
kcal/h *1 19,300
BTU/h *1 76,400
Power input kW 6.05
Current input A 9.88, 9.39, 9.05
COP kW/kW 3.70
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 *2 25.0
kcal/h *2 21,500
BTU/h *2 85,300
Power input kW 5.84
Current input A 9.54, 9.06, 8.74
COP kW/kW 4.28
Temp. range of
heating
Indoor temp. D.B. 15 to 27°C
Outdoor temp. W.B. −20 to 15°C *3, *4
Indoor unit
connectable
Total capacity 50 to 130% of outdoor unit capacity
Model/Quantity
CITY MULTI 15–200/12
Branch box kW type: 15–100/8
Mixed system
Branch
box 1 unit
CITY MULTI 15–200/5
Branch box kW type: 15–100/5
Branch
box 2 units
CITY MULTI 15–200/3
Branch box kW type: 15–100/8
Sound pressure level (measured in anechoic room) dB <A> 56/61
Power pressure level (measured in anechoic room) dB <A> 75/80
Refrigerant
piping diameter
Liquid pipe mm (inch) 9.52 (3/8)*5
Gas pipe mm (inch) 19.05 (3/4)
FAN Type × Quantity Propeller Fan × 2
Airow rate m³/min 137 (303)
L/s 2,316
cfm 4,908
Control, Driving mechanism DC control
Motor output kW 0.20 + 0.20
External static pressure 0
Compressor Type × Quantity Scroll hermetic compressor × 1
Manufacturer Siam Compressor Industry Co., Ltd.
Starting method Inverter
Capacity control % Cooling 25 to100
Heating 17 to 100
Motor output kW 5.3
Case heater kW 0
Lubricant FV50S(2.3litter)
External nish Galvanized Steel Sheet
Munsell No. 3Y 7.8/1.1
External dimension HxWxD mm 1338 × 1050 x 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 7.3 kg
Control Electronic Expansion Valve
Net weight kg (lb) 137 (303)
Heat exchanger Cross Fin and Copper tube
HIC circuit (HIC: Heat Inter-Changer) HIC circuit
Defrosting method Reversed refrigerant circuit
Drawing External BK01V793
Wiring BH79J683
Standard
attachment
Document Installation Manual
Accessory Grounded lead wire × 2
Optional parts Joint: CMY-Y62-G-E
Header: CMY-Y64/68-G-E
*1 Nominal cooling conditions *2 Nominal 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]
Note: 1. Nominal conditions *1, *2 are subject to ISO 15042.
2. Due to continuing improvement, above specications may be subject to change without notice.
*3 10 to 52:, when connecting following models: PKFY-P15/20/25VBM, PFFY-P20/25/32VLE(R)M, PFFY-P20/25/32VKM,
PEFY-P40/63VMA3-E; and M series, S series, and P series type indoor unit.
*4 −15 to 52:, when using an optional air protect guide [PAC-SH95AG-E]. However, this condition does not apply to the indoor unit
listed in *3.
*5 Liquid pipe diameter: 12.7 mm, in case of further piping length is longer than 60 m.
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
.

10
OCH634C
4-1. SELECTION OF COOLING/HEATING UNITS
4DATA
Capacity of indoor unit (kW)
P•FY Series
Model Number
for indoor unit
Model
15
Model
20
Model
25
Model
32
Model
40
Model
50
Model
63
Model
71
Model
80
Model
100
Model
125
Model
140
Model
200
Model Capacity 1.7 2.2 2.8 3.6 4.5 5.6 7.1 8.0 9.0 11.2 14.0 16.0 22.4
M,S,P Series
Model Number
for indoor unit
Model
15
Model
20
Model
22
Model
25
Model
35
Model
42
Model
50
Model
60
Model
71
Model
100 ---
Model Capacity 1.5 2.0 2.2 2.5 3.5 4.2 5.0 6.0 7.1 10.0 ---
1. Cooling Calculation
(1) Temporary Selection of Indoor Units
Room1
PEFY-P80 9.0kW (Rated)
Room2
PEFY-P100 11.2 kW (Rated)
(2) Total Indoor Units Capacity
P80 + P100 = P180
(3) Selection of Outdoor Unit
The P200 outdoor unit is selected as total indoor units capacity is P180
PUMY-P200 22.4 kW
(4) Total Indoor Units Capacity Correction Calculation
Room1
Indoor Design Wet Bulb Temperature Correction (20ºC) 1.03 (Refer to Figure 1)
Room2
Indoor Design Wet Bulb Temperature Correction (18ºC) 0.90 (Refer to Figure 1)
Total Indoor Units Capacity (CTi)
CTi = Σ (Indoor Unit Rating × Indoor Design Temperature Correction)
= 9.0 × 1.03 + 11.2 × 0.90
= 19.4 kW
(5) Outdoor Unit Correction Calculation
Outdoor Design Dry Bulb Temperature Correction (38ºC) 0.93 (Refer to Figure 2)
Piping Length Correction (40 m) 0.90 (Refer to Figure 3)
Total Outdoor Unit Capacity (CTo)
CTo = Outdoor Rating × Outdoor Design Temperature Correction × Piping Length Correction
= 22.4 × 0.93 × 0.90
= 18.7 kW
(6) Determination of Maximum System Capacity
Comparison of Capacity between Total Indoor Units Capacity (CTi) and Total Outdoor Unit Capacity (CTo)
CTi = 19.4 > CTo = 18.7, thus, select CTo.
CTx = CTo = 18.7 kW
(7) Comparison with Essential Load
Against the essential load 18.0kW, the maximum system capacity is 18.7 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)
= 18.7 × (9.0 × 1.03)/(9.0 × 1.03 + 11.2 × 0.90)
= 9.0 kW OK: fullls the load 8.0 kW
Room2
Maximum Capacity × Room2 Capacity after the Temperature Correction/(Room1,2 Total Capacity after the Temperature Correction)
= 18.7 × (11.20 × 0.90)/(9.0 × 1.03 + 11.2 × 0.90)
= 9.7 kW OK: fullls the load 9.5 kW
Note: If CTx = CTi, please refer to the <Heating> section to calculate the Maximum Indoor Unit Capacity of Each Room.
Go on to the heating trial calculation since the selected units fulll the cooling loads of Room 1, 2.
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
<Cooling>
Design Condition
Outdoor Design Dry Bulb Temperature 38ºC
Total Cooling Load 18.0 kW
Room1
Indoor Design Dry Bulb Temperature 27ºC
Indoor Design Wet Bulb Temperature 20ºC
Cooling Load 8.0 kW
Room2
Indoor Design Dry Bulb Temperature 24ºC
Indoor Design Wet Bulb Temperature 18ºC
Cooling Load 9.5 kW
<Other>
Indoor/Outdoor Equivalent Piping Length 40 m
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
Ratio of cooling capacity
Outdoor Temperature [°C D.B.]
-5.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 50.0
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
Indoor Temperature
19°C W.B
Total capacity of indoor unit
Cooling capacity correction factor
Piping equivalent length (m)
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80
11.2
16.8
22.4
29.1
0.70
0.75
0.80
0.85
0.90
0.95
1.00