Mitsubishi Electronics OC366 User Manual

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

TECHNICAL & SERVICE MANUAL

HFC

utilized

R410A

December 2010

No. OC366

REVISED EDITION-F

[Model name]

(Standard type) PUMY-P36NHMU

PUMY-P48NHMU

(Salt proof type) PUMY-P36NHMU-BS

PUMY-P48NHMU-BS

[Service Ref.]

PUMY-P36NHMU PUMY-P36NHMUR1 PUMY-P48NHMU PUMY-P48NHMU1 PUMY-P48NHMU2 PUMY-P48NHMUR3

PUMY-P36NHMU-BS PUMY-P36NHMUR1-BS PUMY-P48NHMU-BS PUMY-P48NHMU PUMY-P48NHMU2-BS PUMY-P48NHMUR3-BS

OUTDOOR UNIT

Model name indication

Revision:

•

14. RoHS PARTS LIST has been modified in REVISED EDITION-F.

• Some descriptions have been modified.

• Please void OC366 REVISED EDITION-E.

Note :

• This service manual describes technical data of outdoor unit.

As for indoor units, refer to its

service manual.

• RoHS compliant products have <G> mark on the spec name plate.

1-BS

CONTENTS

1. TECHNICAL CHANGES

2. SAFETY PRECAUTION

3. OVERVIEW OF UNITS

4. SPECIFICATIONS

5. DATA

6. OUTLINES AND DIMENSIONS

7. WIRING DIAGRAM

8.

9. TROUBLESHOOTING

10. ELECTRICAL WIRING

11. REFRIGERANT PIPING TASKS

12. DISASSEMBLY PROCEDURE

13. PARTS LIST

14. RoHS PARTS LIST

15. OPTIONAL PARTS

................................................................

NECESSARY CONDITIONS FOR SYSTEM CONSTRUCTION

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3 6

9

11

13

18

20 24

34 81 84

88

93

96

99

Revision:

"14. RoHS PARTS LIST " has been modiﬁ ed on page 98.

Page Revising point Service Ref. Incorrect Correct

STRUCTURAL PARTS

98

No. 1

SIDE PANEL(L)

STRUCTURAL PARTS

98

No. 4

BASE ASSY

STRUCTURAL PARTS

98

No. 5

MOTOR SUPPORT

STRUCTURAL PARTS

98

No. 7

COVER PANEL (FRONT)

STRUCTURAL PARTS

98

No. 8

COVER PANEL (REAR)

STRUCTURAL PARTS

98

No. 11

SERVICE PANEL

PUMY-P36NHMU(-BS)

PUMY-P48NHMU2(-BS)

PUMY-P36NHMU(-BS)

PUMY-P48NHMU2(-BS)

PUMY-P36NHMU(-BS)

PUMY-P48NHMU2(-BS)

PUMY-P36NHMU(-BS)

PUMY-P48NHMU2(-BS)

PUMY-P36NHMU(-BS)

PUMY-P48NHMU2(-BS)

PUMY-P36NHMU(-BS)

PUMY-P48NHMU2(-BS)

T7W E03 662 T7W E06 662

R01 E31 686 R01 E26 686

R01 E27 130 R01 E19 130

R01 E13 658 R01 E14 658

R01 E11 658 R01 E24 658

T7W E08 668 T7W E06 668

STRUCTURAL PARTS

98

No. 13

TOP PANEL

PUMY-P36NHMU(-BS)

PUMY-P48NHMU2(-BS)

R01 E14 641 R01 E29 641

2

1

TECHNICAL CHANGES

PUMY-P36NHMU PUMY-P36NHMUR1 PUMY-P36NHMU-BS PUMY-P36NHMUR1-BS PUMY-P48NHMU

2 PUMY-P48NHMUR3

PUMY-P48NHMU2-BS PUMY-P48NHMUR3-BS

• THERMISTOR has been changed. (Discharge thermistor → Compressor thermistor)

• Compressor has been changed.

PUMY-P48NHMU1 PUMY-P48NHMU2 PUMY-P48NHMU1-BS PUMY-P48NHMU2-BS

· Compressor (MC) and oil have been changed. ANB33FDCMT (Ester oil: MEL56) ANB33FDHMT(Ether oil: FV50S)

· Electrical parts have been changed. Multi controller board (MULTI. → C.B.) Noise filter circuit board (N.F.) Active filter module (ACTM) Relay (52C) , Resister (RS) (including N.F.)

PUMY-P48NHMU PUMY-P48NHMU1 PUMY-P48NHMU-BS PUMY-P48NHMU1-BS

• Primary heating ON/OFF control has been added.

1-1. PRIMARY HEATING ON/OFF CONTROL SET-UP

(1) Primary heating operation controls another heat source that depends on the main system's operations,

which means the interlock operation shown in "c)" will be possible.

a)

Service ref. PUMY-P48NHMU(-BS)

b)

Indoor unit must be R410A UL model for this function to operate.

Note: Following Indoor models DO NOT HAVE this feature available:

PMFY-P06NBMU PMFY-P08NBMU

c) Different Indoor unit applications that can be applied:

(2) Outdoor unit DIPSW4-4 for Primary Heating Control:

Set DIPSW4-4 when power is turned off at unit.

OFF:

Disable Primary Heating Function (Initial setting)

ON :

Enable Primary Heating Function

does not have this function.

PMFY-P12NBMU PKFY-P06NAMU PMFY-P15NBMU PKFY-P08NAMU

3

A

(3) Determine required Indoor Fans Speed during defrost mode:

a) With no Primary heating output the Indoor fan normally goes off to prevent cold drafts during the defrost cycles. b) With Primary heating control the auxiliary heat will be on during defrost mode, thus cold drafts will not be present. (Ducted units only) c) For models PEFY and PDFY (Ducted) recommended to use "Black" (20K) connector. d) For models PLFY, PCFY, PKFY and PFFY (Ductless) recommended "None", no connector required. e) To set the fan airflow rate to be used during defrost operation, insert the resistance that is packed within the optional adaptor cable kit (PAC-YU24HT-F) into the CN22 sensor input. You can choose at what speed the indoor fan operates during defrost cycles bases on chart below.

Fan airflow rate setting

During defrost operation

CN22 input resistance ()

CN22 input (cable color)

FAN SPEED SETTING

Note: The setting will be disabled "when Heater contact signal is OFF".

OFF

0 20k 27k 39k 62K

None Black Blue White Red

Setting on

Stopped

remote

controller

Very Low Low High

ON

Wiring

CN22

(4) Determine Fan Airflow setting during Indoor Thermo OFF conditions:

a) These settings are done within Indoor DIPSW1-7 and DIPSW1-8, see chart below for options. b) Recommended SW1-7 OFF and SW1-8 ON will determine airflow based on "Setting on the remote controller".

Auxiliary Heating

Signal

Thermo Condition

SW1-7 SW1-8

OFF OFF Very low

ON OFF Low

OFF ON

ON

Fan speed

setting

OFF ON

Setting on

remote

controller

Stopped

Fan speed

setting

Setting on

remote

controller

(5) Setting Outdoor unit and Auxiliary heat switch over temperatures.

When the DIPSW 4-4 is set to "ON", the outdoor unit and the contact output operates as shown below.

a) Outdoor default setting and operations are shown below:

Stage 1

mb. Decreasing - Outdoor unit HP operation

Amb. Increasing - Defrost : Heater contact ON signal

- Other than defrost : Contact OFF

Stage 2

- Outdoor unit HP operation

- Heater contact ON signal

Stage 3

- Outdoor unit OFF (Standby)

- Heater contact ON signal

a

-12:

[10F]

b 0:

[32F]

c

10:

[50F]

d

20:

[68F]

TH7 = Outdoor Temperature

4

When the set temperature ranges overlap, the previously set pattern (1,2 or 3) has a priority. The stage 1 has the highest priority, 2 the second and then 3.

b) Based on above chart listed the sequence of operation on "On Ambient Decrease"

:

Stage 1 :(TH7 = > 10 Stage 2 :(TH7 = 10

Stage 3 :(TH7 = < -12

) : the Outdoor unit runs in HP mode.

:

to -12:) : the Outdoor unit runs in HP mode with Auxiliary heating.

:

) : Auxiliary heating only (Outdoor unit is OFF).

c) Based on above chart listed the sequence of operation on " On Ambient Increase"

:

Stage 3 :(TH7 = < 0 Stage 2 :(TH7 = > 0

Stage 1 :(TH7 = > 20

) : Auxiliary heating only (Outdoor unit is OFF).

:

to 20:) : Auxiliary heating with Outdoor unit in HP mode. :

) : Outdoor unit in HP mode only.

(6) Locally procured wiring

A basic connection method is shown.

(i.e. interlocked operation with the electric heater with the fan speed setting on high

Remote control Board Relay circuit

ic Heater

Electr

power source

Electric Heater

X

+

Adapter

Red 1

White 2

Red 1

Red 2

w

Yello

Green

control board

CN24

CN22

Indoor unit

control board

Dip switch SW4-4 "ON"

Outdoor unit

Preparations in the field

Maximum cable length is 10 m (32ft)

For relay X use the specifications given below Operation coil

Rated voltage : 12VDC Power consumption : 0.9W or less

*Use the diode that is recommended by the relay manufacturer at both ends of the relay coil.

The length of the electrical wiring for the PAC-YU24HT is 2 meters (6-1/2 ft)

To extend this length, use sheathed 2-core cable.

Control cable type : CVV, CVS, CPEV or equivalent.

Cable size : 0.5 mm

2

~ 1.25 mm2 (AWG22 to AWG16)

Don`t extend the cable more than 10 meters (32ft).

Recommended circuit

Wiring diagram

1-phase power supply

208V, 230V/60Hz

R

S

R

S

Control board

88H

CN24

88H

FS1

FS2 FS1

FS2

26H

H1

H2

FS1, 2 ----- Thermal fuse

H1, H2 ----- Heater

26H --------- Overheat protection

88H --------- Electromagnetic contactor

thermostat

5

2 SAFETY PRECAUTION

2-1. CAUTIONS RELATED TO NEW REFRIGERANT

Cautions for units utilizing refrigerant R410A

Use new refrigerant pipes.

Avoid using thin pipes.

Make sure that the inside and outside of refrigerant piping is clean and it has no contaminants such as sulfur, oxides, dirt, shaving particles, etc, which are hazards to refrigerant cycle. In addition, use pipes with specified thickness.

Contamination inside refrigerant piping can cause deterioration of refrigerant oil etc.

Store the piping to be used indoors during installation, and 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 flare and flange connections must be ester oil, ether oil or alkylbezene 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 efficiency will be lowered.

Do not use refrigerant other than R410A.

If other refrigerant (R22 etc.) is used, chlorine in refrigerant 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.

Tools for R410A Gauge manifold Charge hose

Gas leak detector

Torque wrench

Flare tool Size adjustment gauge Vacuum pump adaptor

Electronic refrigerant charging scale

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 refrigerant will change and the efficiency will be lowered.

Ventilate the room if refrigerant leaks during operation. If refrigerant comes into contact with a flame, poisonous gases will be released.

[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) When performing service, install a filter drier simultaneously.

Be sure to use a filter drier for new refrigerant.

[2] Additional refrigerant charge

When charging directly from cylinder

· Check that cylinder for R410A on the market is syphon type.

· Charging should be performed with the cylinder of syphon stood vertically. (Refrigerant is charged from liquid phase.)

6

Gravimeter

[3] Service tools

Use the below service tools as exclusive tools for R410A refrigerant.

No. Tool name Specifications

Gauge manifold · Only for R410A

1

· Use the existing fitting

· Use high-tension side pressure of 5.3MPa·G or over.

Charge hose · Only for R410A

2

· Use pressure performance of 5.09MPa·G or over.

Electronic scale

3

4

Gas leak detector · Attach on vacuum pump.

5

Adaptor for reverse flow check

6

Refrigerant charge base · Only for R410A · Top of cylinder (Pink)

7

Refrigerant recovery equipment

8

· Use the detector for R134a, R407C or R410A.

· Cylinder with syphon

specifications

—

Unit

.

2-2. PRECAUTIONS FOR SALT PROOF TYPE "-BS" MODEL

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.

7

2-3. 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 [7/256 inch] or below.)

Diagram below: Piping diameter and thickness

Nominal

dimensions[inch]

1/4 3/8 1/2 5/8 3/4

Outside

diameter

6.35

9.52

12.70

15.88

19.05

(mm)

Thickness

R410A R22

0.8 [1/32]

1.0 [5/128]

—

2 Dimensions 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 refrigerants. Therefore, to enhance airtightness and intensity, 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 intensity as shown below. Set copper pipe correctly referring to copper pipe flaring dimensions for R410A below. For 1/2 and 5/8 inch, the dimension B changes.

Use torque wrench corresponding to each dimension.

(mm) [inch]

0.8 [1/32]

1.0 [5/128]

Dimension A

Dimension B

Flare cutting dimensions

Nominal

dimensions[inch]

Outside

diameter 1/4 3/8 1/2 5/8 3/4

12.70

15.88

19.05

6.35

9.52

Dimension A

R410A R22

9.1 [11/32-23/64]

13.2 [1/2-33/64]

16.6 [41/64-21/32]

19.7 [49/64-25/32] —

(mm) [inch]

+0

( )

-0.4

9.0

13.0

16.2

19.4

23.3

Flare nut dimensions

Nominal

dimensions[inch]

1/4 3/8 1/2 5/8 3/4

Outside

diameter[inch]

6.35

9.52

12.70

15.88

19.05

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? 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 thermistor vacuum gauge and vacuum valve Charging cylinder

: 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.

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 refrigerant 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

Tools for other refrigerants can be used if equipped with adopter 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

(Usable if equipped with adopter for rever se flow)

(Usable by adjusting flaring dimension)

(mm) [inch]

Dimension B

R410A R22

17.0 [43/64]

22.0 [7/8]

26.0 [1-3/64]

29.0 [1-9/64] —

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)

17.0

22.0

24.0

27.0

36.0

8

3 OVERVIEW OF UNITS

3-1. UNIT CONSTRUCTION

Indoor unit that can be connected

Branching pipe components

Model

Capacity

NCMU-E NBMU-E NLMU-E NBMU-E NMLU-E NMHU-E NMSU-E NMU-E NAMU-E NGMU-E

06 08

12 15

18 24 27 30 36

48 54

Outdoor unit

Capacity

Number of units

Total system wide capacity

P36

Type 06 ~ Type 36

1~ 6 unit

50% ~130% of outdoor unit capacity

P48

Type 06 ~ Type 54

1~ 8 unit

CMY-Y62-G-E CMY-Y64-G-E CMY-Y68-G-E

Branch header

(2 branches)

Ceiling Cassette

4-way flow

PLFY-P PLFY-P PMFY-P PEFY-P PDFY-P PKFY-P PCFY-P PFFY-P PEFY-P

2-way flow

1-way flow

Ceiling Concealed mounted Wall Mounted

Branch header

(4 branches)

Ceiling

built-in Exposed

NFMU-E

Branch header

(8 branches)

Ceiling

Suspended

NGMU-E NEMU-E

Floor Standing

Concealed

NRMU-E

Ceiling

Concealed

(Fresh Air)*1

NMHU-E-F

Decorative panel

MA remote controller

PAR-21MAA

Remote

controller

Name

Model number

Functions

M-NET remote controller

PAR-F27MEA-US

• A handy remote controller for use in conjunction with the Melans centralized management system.

• Address setting is not necessary.

• Addresses must be set.

*1. It is possible only by 1:1 system. (1 indoor unit of Fresh Air type is connected with 1 outdoor unit.) Operating temperature range (outdoor temperature) for fresh air type indoor units differ from other indoor units. Refer to 3-2(2).

9

3-2. UNIT SPECIFICATIONS

(1) Method for identifying MULTI-S model

■

Indoor unit < When using Model 30 >

■

Outdoor unit <When using model 48 >

P L F Y - P 30 N B M U - E PU M Y - P 48 N H M U -BS

PAC type

L : Ceiling cassette K : Wall-mounted type E : Hidden skylight type C : Ceiling suspended type M : Ceiling cassette type F : Floor standing type

NEW frequency converter one-to-many air conditioners (flexible design type)

Indicates equivalent to Cooling capacity

Refrigerant R410A/R22 commonness

Frequency conversion controller

Unit model type

Power supply N: Single phase 208/230V 60Hz

(2) Operating temperature range

Cooling

Indoor-side intake air temperature

Outdoor-side intake air temperature

Notes D.B. : Dry Bulb Temperature W.B. : Wet Bulb Temperature *1. 10~46°C DB [50~115°FDB] : In case of connecting PKFY-P06/P08 type indoor unit.

W.B. 15~24°C [59~75°F]

D.B. -5~46°C [23~115°F]*1

Outdoor unit

Sub-number

UL model

M-NET control

MULTI-S

Frequency conversion controller

Indicates equivalent to Cooling capacity

Heating

D.B. 15~27°C [59~81°F]

W.B. -18~15°C [0~60°F]

Refrigerant R410A

UL model

M-NET control

Outdoor unit model type

Power supply

N: Single phase 208/230V 60Hz

Salt proof type

■ In case of connecting fresh air type indoor unit

Capacity of Fresh

air type indoor

Indoor-side and Outdoor-side intake air temperature

P30

P54

D.B.21~43[70~109°F] *2 W.B.15.5~35[60~95°F]

*2.Thermo-off(FAN-mode) automatically starts if the outdoor temp. is lower than 21D.B.[70°FD.B.]. *3.Thermo-off(FAN-mode) automatically starts if the outdoor temp. is higher than 20D.B.[68°FD.B.].

(3) Guaranteed voltage

198~253V, 60Hz

Cooling

D.B.-10~20[14~68°F] *3

D.B.-5~20[23~68°F] *3

Heating

10

4 SPECIFICATIONS

Item

Cooling Capacity Btu/h Heating Capacity Btu/h Input(Cool Input Current (Cool Power factor (Cool) Input(Heat Input Current (Heat Power factor (Heat)

EER(Cool COP (Heat Connectable indoor units (Max.

Max. Connectable Capacity Btu/h 46,800(130%

Power Supply Single phase ,60Hz,208/230V Breaker Size Max. fuse size Min.Circuit.Ampacity

Sound level (Cool/Heat

External finish Munsell 3Y 7.8/1.1 Refrigerant control Linear Expansion Valve Compressor Hermetic

Crankcase heater W —

Heat exchanger Plate fin coil (Anti corrosion fin treatment

Fan Fan(drive

Dimensions(H%W%D

Weight kg[lbs

Refrigerant R410A

Protection High pressure protection HP switch devices

Total Piping length (Max. Farthest m [ft] 80 [262] Max Height difference m [ft] 50 [164]*1 Chargeless length m [ft] 50 [164]

Guaranteed operation range

)

Model Motor output kW 2.2 Starting method Inverter

Fan motor output kW 0.086 + 0.086 Airflow m3/min[CFM] 100 [3,530]

Charge kg[lbs Oil(Model

Compressor protection

Fan motor protection Overheating/Voltage protection

Piping diameter

*3

)

*3 *3

*3

)

*3 *3 *3 *3

)

) %

No. Propeller fan % 2

)

Liquid :mm[inch] 9.52[3/8

Gas :mm[inch] 15.88[5/8

Rating conditions Cooling Indoor : D.B. 26.7°C / W.B. 19.4°C [D.B. 80°F / W.B. 67°F] Outdoor : D.B. 35°C [D.B. 95°F] Heating Indoor : D.B. 21.1°C [D.B. 70°F] Outdoor : D.B. 8.3°C / W.B. 6.1°C

Service Ref.

kW

A

%

kW

A

%

Btu/h/W

W/W

)

dB 49 / 51

Wmm[in.

Dmm[in. Hmm[in.

L [oz]

m [ft]

(

cool

(

heat

] ] ]

]

)

Note.*1. 20m [70ft] : In case of installing outdoor unit lower than indoor unit. *2. *3. Electrical data is for only outdoor unit. (In case of connecting 2 indoor units of PLFY-P18BM type) Btu/h=kW × 3,412 CFM=K/min × 35.31 lbs=kg/ 0.4536 *Above specification data is subject to rounding variation.

PUMY-P36NHMU(-BS) PUMY-P36NHMUR1(-BS)

36,000 40,000

3.22

14.23/15.74

98.4

2.93

12.88/14.24

98.9

11. 18

4.00 6

)

30A 40A 26A

ANB33FDHMT ANB33FDSMT

950 [37-13/32]

330+30 [13+1-3/16

1,350 [53-5/32

130 [287]

8.5[18.7

2.3 [73] (FV50S

Discharge thermo, Over current detection

120 [394]

-5~ 46 DB [23~115

-18~ 15 WB [0~60

)

]

)

Compressor thermo, Over current detection

]

F DB]*2

°

F WB]

°

10~46°C [50~115°F]DB : In case of connecting PKFY-P06/P08 type indoor unit.

[D.B. 47°F / W.B. 43°F]

11

)

Item

Service Ref.

Cooling Capacity Btu/h Heating Capacity Btu/h Input(Cool Input Current (Cool Power factor (Cool) Input(Heat Input Current (Heat Power factor (Heat) EER(Cool COP (Heat Connectable indoor units (Max.

)

*3

)

*3 *3

)

*3

)

*3 *3

)

*3 *3

kW 4.97

A

%

kW 4.88

A 23.6/21.3

%

Btu/h/W

W/W

)

Max. Connectable Capacity Btu/h 62,400(130%

PUMY-P48NHMU/NHMU1/NHMU2/NHMUR3(-BS)

48,000 54,000

24.0/21.7

99.5

9.66

3.24 8

)

Power Supply Single phase ,60Hz,208/230V Breaker Size Max. fuse size Min.Circuit.Ampacity Sound level (Cool/Heat

)

dB 50 / 52

30A 40A 26A

External finish Munsell 3Y 7.8/1.1 Refrigerant control Linear Expansion Valve Compressor Hermetic

Model

ANB33FDCMT(NHMU

(1)

), ANB33FDHMT(NHMU2), ANB33FDSMT(NHMUR3)

Motor output kW 2.4

Starting method Inverter Crankcase heater W — Heat exchanger Plate fin coil (Anti corrosion fin treatment

Fan Fan(drive

)

No. Propeller fan % 2

%

Fan motor output kW 0.086 + 0.086

3

Airflow m

Dimensions(H%W%D

)

Wmm[in.

Weight kg[lbs

/min[CFM] 100 [3,530]

]

Dmm[in. Hmm[in.

] ]

]

950 [37-13/32]

330+30 [13+1-3/16

1,350 [53-5/32

]

130 [287]

)

Refrigerant R410A

Charge kg[lbs

Oil(Model

)

L [oz]

]

8.5[18.7

2.3 [73] (MEL56/NHMU

]

(1), FV50S/NHMU2, NHMUR3)

Protection High pressure protection HP switch devices

Compressor protection

Discharge thermo,Over current detection(NHMU/NHMU

Compressor thermo,Over current detection(NHMUR3)

Fan motor protection Overheating/Voltage protection Total Piping length (Max.

)

m [ft]

120 [394] Farthest m [ft] 80 [262] Max Height difference m [ft] 50 [164]*1 Chargeless length m [ft] 50 [164]

Piping diameter

Guaranteed operation range

Liquid :mm[inch] 9.52[3/8

Gas :mm[inch] 15.88[5/8

(

cool

(

heat

Rating conditions Cooling Indoor : D.B. 26.7°C / W.B. 19.4°C [D.B. 80°F / W.B. 67°F] Outdoor : D.B. 35°C [D.B. 95°F] Heating Indoor : D.B. 21.1°C [D.B. 70°F] Outdoor : D.B. 8.3°C / W.B. 6.1°C

) )

-5~ 46 DB [23~115°F DB]*2

-18~ 15 WB [0~60°F WB]

Note.*1. 20m[70ft] : In case of installing outdoor unit lower than indoor unit.

*2. 10~46°C[50~115°F]DB : In case of connecting PKFY-P06/P08 type indoor unit. *3. Electrical data is for only outdoor unit. (In case of connecting 2 indoor units of PLFY-P24BM type) Btu/h=kW × 3,412 CFM=K/min × 35.31 lbs=kg/ 0.4536 *Above specification data is subject to rounding variation.

]

[D.B. 47°F / W.B. 43°F]

)

1/NHMU2)

12

5 DATA

5-1. COOLING AND HEATING CAPACITY AND CHARACTERISTICS

5-1-1. Method for obtaining system cooling and heating capacity:

To obtain the system cooling and heating capacity and the electrical characteristics of the outdoor unit, first add up the ratings of all the indoor units connected to the outdoor unit (see table below), and then use this total to find the standard capacity with the help of the tables on 5-2. STANDARD CAPACITY DIAGRAM.

(1) Capacity of indoor unit

Model number for indoor unit

Model Capacity 6 8 12 15 18 24 27 30 36 48 54

(2) Sample calculation

1 System assembled from indoor and outdoor unit (in this example the total capacity of the indoor units is greater than that of

the outdoor unit)

• Outdoor unit PUMY-P48NHMU

• Indoor unit PKFY-P08NAMU-E o 2 , PLFY-P18NLMU-E o 2

2 According to the conditions in 1, the total capacity of the indoor unit will be: 8 o 2 + 18 o 2 = 52 3 The following figures are obtained from the 52 total capacity row of the standard capacity table (5-2.):

Capacity (Btu/h)

Cooling Heating Cooling Heating Cooling Heating

48,900

A

B

Model 06 Model 08 Model 12 Model 15 Model 18 Model 24 Model 27 Model 30 Model 36 Model 48 Model 54

54,500

Outdoor unit power consumption (kW)

5.01 4.71 21.9 20.6

Outdoor unit current (A)/230V

5-1-2. Method for obtaining the heating and cooling capacity of an indoor unit:

(1) The capacity of each indoor unit (Btu/h) = the capacity A (or B) o

(2) Sample calculation (using the system described above in 5-1-1. (2) ):

During cooling: During heating:

• The total model capacity of the indoor unit is: 8000 o 2 + 18000 o 2 = 52000Btu/h Therefore, the capacity of PKFY-P08NAMU-E and PLFY-P18NLMU-E will be calculated as follows by using the formula in 5-1-2. (1):

Model 08= 48,900 o = 7,520 Btu/h

Model 18= 48,900 o = 16,930 Btu/h

8000

52000

18000 52000

• The total model capacity of indoor unit is: 9000 o 2 + 20000 o 2 = 58000 Btu/h Therefore, the capacity of PKFY-P08NAMU-E and PLFY-P18NLMU-E will be calculated as follows by using the formula in 5-1-2. (1):

Model 08=54,500 o = 8,460 Btu/h

Model 18= 54,500 o = 18,790 Btu/h

total model capacity of all indoor units

model capacity

9000

58000

20000 58000

13

5-2. STANDARD CAPACITY DIAGRAM

* Before calculating the sum of total capacity of indoor units, please convert the value following the formula on 5-1-1.

5-2-1. PUMY-P36NHMU(-BS)/ PUMY-P36NHMUR1(-BS)

Total capacity of Indoor units*

18 18,000 20,200 1.38 1.45 6.1 6.4 6.8 7.1 19 19,000 21,300 1.45 1.52 6.4 6.7 7.1 7.4 20 20,000 22,400 1.52 1.60 6.7 7.0 7.4 7.8 21 21,000 23,500 1.60 1.67 7.1 7.4 7.8 8.1 22 22,000 24,700 1.68 1.75 7.4 7.7 8.2 8.5 23 23,000 25,800 1.76 1.83 7.8 8.0 8.6 8.9 24 24,000 26,900 1.85 1.91 8.2 8.4 9.0 9.3 25 25,000 28,000 1.94 1.98 8.6 8.7 9.5 9.6 26 26,000 29,200 2.04 2.06 9.0 9.1 9.9 10.0 27 27,000 30,300 2.14 2.15 9.4 9.4 10.4 10.4 28 28,000 31,400 2.24 2.23 9.9 9.8 10.9 10.8 29 29,000 32,500 2.35 2.31 10.4 10.2 11.5 11.2 30 30,000 33,700 2.46 2.40 10.9 10.5 12.0 11.7 31 31,000 34,800 2.58 2.48 11.4 10.9 12.6 12.1 32 32,000 35,900 2.70 2.57 11.9 11.3 13.2 12.5 33 33,000 37,000 2.82 2.66 12.5 11.7 13.8 12.9 34 34,000 38,200 2.95 2.75 13.0 12.1 14.4 13.4 35 35,000 39,300 3.08 2.84 13.6 12.5 15.1 13.8 36 36,000 40,000 3.22 2.93 14.2 12.9 15.7 14.2 37 36,200 40,200 3.23 2.92 14.3 12.9 15.8 14.2 38 36,400 40,400 3.25 2.89 14.3 12.7 15.9 14.1 39 36,600 40,700 3.26 2.86 14.4 12.6 15.9 13.9 40 36,900 40,900 3.27 2.84 14.5 12.5 16.0 13.8 41 37,100 41,100 3.28 2.81 14.5 12.3 16.0 13.6 42 37,300 41,300 3.30 2.78 14.6 12.2 16.1 13.5 43 37,500 41,600 3.31 2.75 14.6 12.1 16.2 13.4 44 37,700 41,800 3.32 2.72 14.7 11.9 16.2 13.2 45 37,900 42,000 3.34 2.69 14.7 11.8 16.3 13.1 46 38,100 42,200 3.35 2.66 14.8 11.7 16.4 12.9

Capacity(Btu/h)

Cooling Heating Cooling Heating Cooling Heating Cooling Heating

Power Consumption(kW)

Current(A)/230V Current(A)/208V

Note) In some combination patterns, numerical value of the heating data may differ slightly.

(CAPACITY : about several hundred Btu/h)

14

5-2-2. PUMY-P48NHMU/NHMU1/NHMU2/NHMUR3(-BS)

Total capacity of Indoor units*

24 24,000 26,900 2.11 2.32 9.2 10.2 10.2 11.2 25 25,000 28,000 2.20 2.41 9.6 10.5 10.6 11.6 26 26,000 29,200 2.29 2.50 10.0 10.9 11.1 12.1 27 27,000 30,300 2.38 2.59 10.4 11.3 11.5 12.5 28 28,000 31,400 2.48 2.68 10.8 11.7 12.0 13.0 29 29,000 32,500 2.58 2.78 11.3 12.1 12.4 13.4 30 30,000 33,700 2.68 2.87 11.7 12.6 12.9 13.9 31 31,000 34,800 2.78 2.97 12.2 13.0 13.4 14.4 32 32,000 35,900 2.89 3.07 12.6 13.4 14.0 14.8 33 33,000 37,000 3.00 3.17 13.1 13.9 14.5 15.3 34 34,000 38,200 3.11 3.28 13.6 14.3 15.0 15.8 35 35,000 39,300 3.23 3.38 14.1 14.8 15.6 16.3 36 36,000 40,400 3.35 3.49 14.6 15.2 16.2 16.9 37 37,000 41,500 3.47 3.60 15.2 15.7 16.8 17.4 38 38,000 42,700 3.60 3.71 15.7 16.2 17.4 17.9 39 39,000 43,800 3.72 3.82 16.3 16.7 18.0 18.5 40 40,000 44,900 3.85 3.93 16.8 17.2 18.6 19.0 41 41,000 46,000 3.99 4.05 17.4 17.7 19.3 19.6 42 42,000 47,200 4.12 4.17 18.0 18.2 19.9 20.1 43 43,000 48,300 4.26 4.28 18.6 18.7 20.6 20.7 44 44,000 49,400 4.41 4.41 19.3 19.3 21.3 21.3 45 45,000 50,500 4.55 4.53 19.9 19.8 22.0 21.9 46 46,000 51,700 4.70 4.65 20.5 20.3 22.7 22.5 47 47,000 52,800 4.85 4.78 21.2 20.9 23.4 23.1 48 48,000 54,000 4.97 4.88 21.7 21.3 24.0 23.6 49 48,300 54,200 4.98 4.83 21.8 21.1 24.1 23.3 50 48,500 54,300 4.99 4.79 21.8 20.9 24.1 23.2 51 48,700 54,400 5.00 4.75 21.8 20.8 24.1 23.0 52 48,900 54,500 5.01 4.71 21.9 20.6 24.2 22.8 53 49,100 54,600 5.01 4.67 21.9 20.4 24.2 22.6 54 49,300 54,800 5.02 4.63 21.9 20.2 24.3 22.4 55 49,600 54,900 5.03 4.59 22.0 20.1 24.3 22.2 56 49,800 55,000 5.04 4.55 22.0 19.9 24.3 22.0 57 50,000 55,100 5.04 4.51 22.0 19.7 24.4 21.8 58 50,200 55,200 5.05 4.47 22.1 19.5 24.4 21.6 59 50,400 55,300 5.06 4.43 22.1 19.4 24.4 21.4 60 50,600 55,500 5.07 4.39 22.1 19.2 24.5 21.2 61 50,800 55,600 5.07 4.35 22.2 19.0 24.5 21.0 62 51,100 55,700 5.08 4.31 22.2 18.8 24.6 20.8

Note) In some combination patterns, numerical value of the heating data may differ slightly.

(CAPACITY : about several hundred Btu/h)

Capacity(Btu/h)

Cooling Heating Cooling Heating Cooling Heating Cooling Heating

Power Consumption(kW)

Current(A)/230V Current(A)/208V

15

5-3. CORRECTING COOLING AND HEATING CAPACITY

5-3-1. Correcting Changes in Air Conditions

(1) The performance curve charts (Figure 1, 2) show the ratio by the temperature condition change when the rated capacity (total

capacity) and the rated input are presumed 1, under standard length (7.6 m [25 ft]) and standard temperature condition.

• Standard conditions:

Rated cooling capacity

Rated heating capacity

• Use the rated input and rated power values given in the characteristics table for each indoor unit.

• The input is the single value of the outdoor unit; the input of each indoor unit must be added to obtain the total input.

(2) The capacity of each indoor unit may be obtained by multiplying the total capacity obtained in (1) by the ratio between the

individual capacity at the rated time and the total capacity at the rated time.

Indoor D.B. 26.7°C / W.B. 19.4°C [D.B.80°F / W.B.67°F] Outdoor D.B. 35°C [D.B.95°F]

Indoor D.B. 21.1°C [D.B.70°F] Outdoor D.B. 8.3°C / W.B. 6.1°C [D.B.47°F / W.B.43°F]

Individual capacity under stated conditions = total capacity under the stated conditions o

(3) Capacity correction factor curve

Figure 1. Cooling performance curve

1.4

Cooling capacity (ratio)

1.2

1.0

0.8

0.6

1.4

1.2

1.0

0.8

0.6

Cooling power consumption (ratio)

0.4

-5 0 10 20 30 40 46 23 32 50 68 86 104 115

OUTDOOR

:WB(°FWB)

22 (71.6) 20 (68) 18 (64.4) 16 (60.8)

INDOOR

:WB(°FWB)

22 (71.6) 20 (68) 18 (64.4) 16 (60.8)

INDOOR

°C DB

°F DB

Figure 2. Heating performance curve

1.4

Heating capacity (ratio)

1.2

1.0

0.8

0.6

0.4

1.4

1.2

1.0

0.8

0.6

0.4

-12

-18 10

0

individual capacity at the rated time

total capacity at the rated time

Heating power consumption (ratio)

-1014-523032541105015

OUTDOOR

59

°F WB

:DB(°FDB)

15 (59)

21.1 (70)

25 (77)

INDOOR

:DB(°FDB)

21.1 (70)

15 (59)

25 (77)

INDOOR

°C WB

5-3-2. Correcting Capacity for Changes in the Length of Refrigerant Piping

• During cooling, to obtain the ratio (and the equivalent piping length) of the outdoor units rated capacity and the total in-use indoor capacity, first find the capacity ratio corresponding to the standard piping length from Figure 3 at first, and then multiply by the cooling capacity from Figure 1 to obtain the actual capacity.

• During heating, to find the equivalent piping length, first find the capacity ratio corresponding to standard piping length from Figure 3, and then multiply by the heating capacity from Figure 2 to obtain the actual capacity.

16

(1) Capacity CORRECTION CURVE (Figure 3)

100

Cooling

Heating

95

Heating P36, 48 models

90

85

Cooling P36 model

80

Capacity ratio [%]

Cooling P48 model

75

70

5 101520253035404550556065707580[m]

[16] [33] [50] [70] [80] [100] [115] [130] [150] [165] [180] [195] [215] [230] [245] [260][ft]

Corrected pipe length

(2) Method for Obtaining the Equivalent Piping Length

Equivalent length for type P48 = (length of piping to farthest indoor unit) + (0.3 o number of bends in the piping) (m) Length of piping to farthest indoor unit: 80 m [262 ft]

5-3-3. Correction of Heating Capacity for Frost and Defrosting

If heating capacity has been reduced due to frost formation or defrosting, multiply the capacity by the appropriate correction factor from the following table to obtain the actual heating capacity.

Correction factor diagram

Outdoor Intake temperature (W.B.°F)

Outdoor Intake temperature (W.B.°C)

Correction factor

43 39 36 32 28 25 21 18 14

6420-2-4-6-8-10

1.0 0.98 0.89 0.88 0.89 0.9 0.95 0.95 0.95

5-4. NOISE CRITERION CURVES

SPL(dB)

PUMY-P36NHMU(-BS) PUMY-P36NHMUR1(-BS)

90

80

70

60

50

40

30

APPROXIMATE

20

THRESHOLD OF HEARING FOR CONTINUOUS NOISE

OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 μbar)

10

63 125 250 500 1000 2000 4000 8000

BAND CENTER FREQUENCIES, Hz

MICROPHONE

1m [3.3ft]

MODE

COOLING

HEATING

UNIT

LINE 49 51

PUMY-P48NHMU(-BS) PUMY-P48NHMU PUMY-P48NHMU

1(-BS) 2(-BS)

MODE

COOLING

HEATING

SPL(dB)

50 52

LINE

PUMY-P48NHMUR3(-BS)

90

80

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

70

60

50

40

30

APPROXIMATE

20

THRESHOLD OF HEARING FOR CONTINUOUS NOISE

OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 μbar)

10

63 125 250 500 1000 2000 4000 8000

BAND CENTER FREQUENCIES, Hz

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

1.5m

[4.9ft]

GROUND

17

6

OUTLINES AND DIMENSIONS

PUMY-P48NHMU PUMY-P48NHMU-BS PUMY-P48NHMU

1

PUMY-P48NHMU1-BS

19<3/4>

2-U Shaped notched hole

(Foundation Bolt M10<W3/8>)

175

<6-7/8>

Rear Air Intake

600<23-5/8>

175

<6-7/8>

Side Air Intake

4 PIPING-WIRING DIRECTIONS

Piping and wiring connections

can be made from 4 directions:

front, right, rear and below.

417<16-13/32>

56<2-7/32>

37<1-15/32>

330<13>

2-12%36 Oval hole

28<1-3/32> 370<14-9/16>

53<2-3/32>

Left …… For the power supply

Center … For the transmission line

Right…… For concentration control

Terminal block

70<2-3/4>

42<1-21/32>

56<2-7/32>

Air Discharge

(Foundation Bolt M10<W3/8>)

30<1-3/16>

( )

Ground for the power supply

("GR"marking position)

950<37-13/32>

322<12-11/16>

Handle

Rear Air Intake

Ground for the transmission line

Ground for concentration control

Side Air Intake

Handle

Service panel

635<25>371<14-19/32>

1350<53-5/32>

Handle

1088<42-27/32>

+1 507<19-31/32>

1

+1 423<16-21/32>

2

23<29/32>

Front piping cover

Rear piping cover

71<2-13/16>

When installing the conduit.

Set the attachment to the

Unit : mm <inch>

Bottom piping hole

(Knockout)

71<2-13/16>

219<8-5/8>

1/2 Conduit attachment

inner side of each panel.

2-W22<7/8>

40<1-9/16>

Conduit hole

(2-W27<1-1/16>Knockout)

Rear trunking hole

(Knockout)

W92

<3-5

31<1-7/32>

74<2-19/32>

Rear piping hole

/8>

W33<1-5/16>

Drain hole

5-

145

<5-23/32>

145

<5-23/32>

145

<5-23/32>

220

<8-21/32>

81<3-3/16>

30<1-3/16>

(Knockout)

mm<inch>

Please secure the unit firmly

with 4 foundation (M10<W3/8>)

2 SERVICE SPACE 3 FOUNDATION BOLTS

Dimensions of space needed

for service access are

1 FREE SPACE (Around the unit)

The diagram below shows a

basic example.

bolts.(Bolts and washers must

be purchased locally.)

<5-29/32> Min.150mm

shown in the below diagram.

FREE

Explanation of particular details is

given in the installation manuals etc.

FOUNDATION

<19-11/16> Min.500mm

Min.500mm

Service space

Min.10mm<3/8>

30mm<1-3/16> Max.

<19-11/16>

Min.150mm<5-29/32>

Min.1000mm<39-3/8>

Handle

Example of Notes

……Refrigerant GAS pipe connection (FLARE):15.88 (5/8 inch)

……Refrigerant LIQUID pipe connection (FLARE): 9.52 (3/8 inch)

+1…..Indication of STOP VALVE connection location.

18

Air intake

55<2-3/16>

63<2-1/2>

73<2-7/8>

W92

63<2-1/2>

92<3-5/8>

73<2-7/8>

<2-1/2> 63

55<2-3/16>

W92

<3-5/8>

27<1-1/16>

<3-5/8>

92<3-5/8>

65<2-9/16>

27<1-1/16>

92<3-5/8>

55<2-3/16>

19<3/4>

73<2-7/8>

27<1-1/16>

65<2-9/16>

92<3-5/8>

23<29/32>

40<1-9/16>

Right trunking hole

(Knockout)

45<1-25/32>

Conduit hole

(2-W27<1-1/16>Knockout)

75

Right piping hole

(Knockout)

Conduit hole

(2-W27<1-1/16>Knockout)

40<1-9/16>

<2-31/32>

45<1-25/32>

40<1-9/16>

Piping Knockout Hole Details

Front piping hole

Front trunking hole

(Knockout)

Min.500mm

<19-11/16>

Min.500mm

<19-11/16>

Min.150mm

<5-29/32>

Min.10mm<3/8>

Handle

Side Air Intake

Front piping cover

Rear piping cover

Air intake

Rear Air Intake

Handle

Service panel

Handle

31<1-7/32>

74<2-19/32>

40<1-9/16>

Max.

30mm<1-3/16>

The diagram below shows a

basic example.

Explanation of particular details is

given in the installation manuals etc.

Dimensions of space needed

for service access are

shown in the below diagram.

Please secure the unit firmly

with 4 foundation (M10<W3/8>)

bolts.(Bolts and washers must

be purchased locally.)

Air Discharge

Rear Air Intake

Side Air Intake

……Refrigerant GAS pipe connection (FLARE):15.88 (5/8 inch)

……Refrigerant LIQUID pipe connection (FLARE):9.52 (3/8 inch)

+1…..Indication of STOP VALVE connection location.

Example of Notes

Piping Knockout Hole Details

1 FREE SPACE (Around the unit)

2 SERVICE SPACE 3 FOUNDATION BOLTS

4 PIPING-WIRING DIRECTIONS

Piping and wiring connections

can be made from 4 directions:

front,right,rear and below.

1/2 Conduit attachment

2-W22<7/8>

When installing the conduit.

Set the attachment to the

inner side of each panel.

mm<inch>

FOUNDATION

Service space

Min.1000mm<39-3/8>

Min.10mm<3/8>

FREE

Min.150mm<5-29/32>

2-U Shaped notched hole

(Foundation Bolt M10<W3/8>)

Conduit hole

(2-W27<1-1/16>Knockout)

45<1-25/32>

Right trunking hole

(Knockout)

45<1-25/32> 40<1-9/16>

65<2-9/16>

92<3-5/8>

27<1-1/16>

55<2-3/16>

23<29/32>

73<2-7/8>

63<2-1/2>

Rear piping hole

(Knockout)

Rear trunking hole

(Knockout)

Conduit hole

(2-W27<1-1/16>Knockout)

W92

<3-5/8>

W92

<3-5/8>

19<3/4> 55<2-3/16>

92<3-5/8>

40<1-9/16>

73<2-7/8> 63<2-1/2>

23<29/32>

27<1-1/16>

92<3-5/8>

Conduit hole

(2-W27<1-1/16>Knockout)

75

<2-31/32>

Right piping hole

(Knockout)

40<1-9/16>

55<2-3/16>

73<2-7/8>

27<1-1/16>

23<29/32>

65<2-9/16>

92<3-5/8>

Front trunking hole

(Knockout)

Front piping hole

(Knockout)

63

<2-1/2>

W

92

<3-5/8>

30<1-3/16>

81<3-3/16>

219<8-5/8>

71<2-13/16>

Bottom piping hole

(Knockout)

Drain hole

5-

W33<1-5/16>

220

<8-21/32>

145

<5-23/32>

145

<5-23/32>

145

<5-23/32>

Handle

600<23-5/8>

28<1-3/32>

370<14-9/16>

70<2-3/4>

56<2-7/32>

42<1-21/32>

56<2-7/32>

37<1-15/32>

19<3/4>

53<2-3/32>

417<16-13/32>

330<13>

175

<6-7/8>

175

<6-7/8>

2-12%36 Oval hole

(Foundation Bolt M10<W3/8>)

30<1-3/16>

1088<42-27/32>

322<12-11/16>

635<25>371<14-19/32>

950<37-13/32>

23<29/32>

1350<53-5/32>

+1 423<16-21/32>

+1 507<19-31/32>

Handle

1

2

( )

Left …… For the power supply

Center … For the transmission line

Right…… For concentration control

Terminal block

Ground for the transmission line

Ground for concentration control

Ground for the power supply

("GR"marking position)

PUMY-P36NHMU(-BS) PUMY-P36NHMUR1(-BS) PUMY-P48NHMU

2(-BS)

PUMY-P48NHMUR3(-BS)

Unit : mm <inch>

19

7

WIRING DIAGRAM

PUMY-P48NHMU PUMY-P48NHMU-BS PUMY-P48NHMU1 PUMY-P48NHMU1-BS

SYMBOL NAME SYMBOL NAMESYMBOL NAME

TB1 Terminal Block <Power Supply> TB3 Terminal Block <Transmission> TB7 Terminal Block <Centralized Control> MC Motor for Compressor MF1,MF2 Fan Motor 21S4 Solenoid Valve<Four way valve> SV1 Solenoid Valve<Bypass valve> TH3 TH4 Thermistor<Discharge Temperature> TH6 TH7 Thermistor<Outdoor Temperature> TH8 Thermistor<Heatsink> 63HS 63H High Pressure Switch 63L Low Pressure Switch CB Main Smoothing Capacitor ACTM RS Rush Current Protect Resistor DCL P.B. Power Circuit Board

U/V/W TAB-S/T TAB-P/P1/P2 TAB-N/N1/N2 CN2~5 CNDC CNAF IPM LED1

Thermistor<Outdoor Pipe Temperature>

Thermistor<Low Pressure Saturated Temperature>

High Pressure Sensor<Discharge Pressure>

Active filter Module

Reactor

Connection Terminal<U/V/W-Phase> Terminal<L/N-Phase> Terminal<DCVoltage> Terminal<DCVoltage> Connector Connector Connector Inverter Light Emitting Diodes <Inverter Control Status>

MULTI.B.

F1,F2 F500 SW1 SW2 SW3 SW4 SW5 SW6 SW7 SW8 SWU1 SWU2 TRANS LED1,2 LED3 CNS1 CNS2 CNAC CNDC CN2 CN4 CN40 CN41 TH3 TH4 TH7/6 63HS 63H 63L CNF1,CNF2 21S4 SV1 SS CN3D CN3S CN3N CN51 X501~505

Multi Controller Board Fuse<6.3A> Fuse<3A> Switch<Display Selection> Switch<Function Selection> Switch<Test Run> Switch<Model Selection> Switch<Function Selection> Switch<Function Selection> Switch<Function Selection> Switch<Function Selection> Switch<Unit Address Selection, 1s digit> Switch<Unit Address Selection, 10ths digit> Transformer Digital Indicator<Operation Inspection Display> LED<Power Supply to Main Microcomputer> Connector<Multi System> Connector<Centralized Control> Connector<To Noise Filter Circuit Board> Connector<Power circuit board> Connector<To Power Circuit Board> Connector<To Power Circuit Board> Connector<Centralized Control Power Supply> Connector<For storing Jumper Connector> Connector<Thermistor> Connector<Thermistor> Connector<Thermistor> Connector<High Pressure Sensor> Connector<High Pressure Switch> Connector<Low Pressure Switch> Connector<Fan Motor> Connector<Four-way Valve> Connector<Bypass Valve> Connector<For Option> Connector<For Option> Connector<For Option> Connector<For Option> Connector<For Option> Relay

N.F. Noise Filter Circuit Board

LI/LO NI/NO EI CNAC1/2 CN5

M-P.B.

CN1 CN2

Connection Lead<L-Phase> Connection Lead<N-Phase> Connection Terminal<Ground> Connector Connector Transmission Power Board Connector<To Noise Filter Circuit Board> Connector<To Multi Controller Board>

Caution for electrical work

Use copper supply wires.

Cautions when Servicing

!

WARNING: When the main supply is turned off, the voltage [340 V] in the main capacitor will drop to 20 V in approx. 2 minutes (input voltage: 240 V).

NOTES:

1.Refer to the wiring diagrams of the indoor units for details on wiring of each indoor unit. Self-diagnosis function The indoor and outdoor units can be diagnosed automatically using the self-diagnosis switch (SW1) and LED1, LED2 (LED indication) found on the multi-controller of the outdoor unit. LED indication : Set all contacts of SW1 to OFF.

During normal operation The LED indicates the drive state of the controller in the outdoor unit.

Bit

Indication

When faults requiring inspection occurs The LED alternately indicates the inspection code and the location of the unit in which the fault has occurred.

When servicing, make sure that LED1, LED2 on the outdoor circuit board goes out, and then wait for at least 1 minute. Components other than the outdoor board may be faulty: Check and take corrective action, referring to the service manual. Do not replace the outdoor board without checking.

[Example] When the compressor and SV1 are turned during cooling

1

Compressor operated

2

52C321S44SV15(SV2)

6

–

7

–

8

Always lit

operation.

12345678

20

MF1

MF2

TB3

M1

M2

S

TO INDOOR UNIT

CONNECTING WIRES

DC 30V(Non-polar)

TB7

M1

M2

S

FOR CENTRALIZED

CONTROL

DC 30V(Non-polar)

POWER SUPPLY

NO FUSE

BREAKER

~/N AC208V/230V 60Hz

L1

L2

GR

(BRN)

(ORN)

MULTI. B.

1

F500

X505

52C

(BLK)

3

1

4 567

4 5 6 7

21S4 (GRN)

3 1

21S4

CNF1

(WHT)

CNF2

(WHT)

CNDC (PNK)

X504

+

CB

31

SV2

(BLU)

3 1

TH8

X503

TH7TH6 TH3 TH463HS 63H63L

12 121234

1 23

TH7/6

63HS

(RED)

(WHT)

63H

(YLW)

TRANS

X502

SS

SV1

(WHT)

2 1

3

SV1

52C

RS

P. B.

123

CNAF

456

(WHT)

12 12 12 1234567

CN2

(WHT)

CN3

(WHT)

CN5

(RED)

CN4

(WHT) TAB N

TABP

31

X501

1

TABP2

RED

TH3

(WHT)

F1

F2

+

V

U

WHT

MC

(WHT)

31

-

W

BLK

TH4

63L

(RED)

21

DCL

CNDC

(PIN)

+

LED3

CNAC (RED)

ACTM

13

TABN1

CNS1 (RED)

L1

+

-

TABN2

CN3D

(WHT)

123

CN2

(WHT)

7654321

CNS2 (YLW)

21 2

L2

+

CN3S (RED)

1 23

1

123456

TABT

~

TAB S

~

TABP1

P

N1 N2

I

CN3N (BLU)

123

(WHT)

CN4

21

CN51

(WHT)

SWU2 SWU1

SW4

4321

5

+1

CN41

(WHT)

3

13

CNAC2

(RED)

1

CNAC1

(WHT)

SW5

SW1

LED1

88

CN40

(WHT)

3214 321

4

NO CN5

(RED)

E I

SW3

M-P.B.

LO

NILI

SW8

SW7

LED2

CN102 (WHT) 432 1

N. F.

12

SW6

SW2

88

TP1

1 2 34

CN2

(WHT)

CN1

(WHT)

3 1

<+1 MODEL SELECT>

MODELS

PUMY-P48NHMU

The black square ( )

SW4

ON

OFF

123456

indicates a switch position.

(Note : Only PUMY-P48NHMU1 and PUMY-P48NHMU1-BS) DIP SW4-4 for primary heating control : Set DIP SW4-4 when power is turned off at unit. DIP SW4-4 OFF : Disable primary heating function (Initial setting) DIP SW4-4 ON : Enable primary heating function

21

PUMY-P36NHMU(-BS) PUMY-P36NHMUR1(-BS) PUMY-P48NHMU

SYMBOL NAME SYMBOL NAME SYMBOL NAME

TB1 Terminal Block <Power Supply> TB3 Terminal Block <Communication Line> TB7 Terminal Block < MC Motor For Compressor MF1,MF2 Fan Motor 21S4 Solenoid Valve<Four-Way Valve> 63H High Pressure Switch 63L Low Pressure Switch 63HS High Pressure Sensor SV1 Solenoid Valve<Bypass valve> TH3 TH4 Thermistor<Discharge/Compressor> TH6 Thermistor<Low Pressure Saturated> TH7 TH8 DCL

ACTM

CE Main Smoothing Capacitor

Caution for electrical work

• Use copper supply wires.

Cautions when Servicing

!

•

When servicing, make sure that LED1, LED2 on the outdoor circuit board goes out, and then wait for at least 1 minute.

• Components other than the outdoor board may be faulty: Check and take corrective action, referring to the service manual.

Do not replace the outdoor board without checking.

Thermistor<Outdoor Pipe>

Thermistor<Outdoor> Thermistor<Heatsink> Reactor

Active Filter Module

WARNING: When the main supply is turned off, the voltage [340 V] in the main capacitor will drop to 20 V in approx. 2 minutes (input voltage: 230 V).

2(-BS) PUMY-P48NHMUR3(-BS)

P.B. Power Circuit Board

Centralized Control Line>

N.F. Noise Filter Circuit Board

C.B.

TABU/V/W TABS/T TABP1/P2/P TABN1/N2/N DS2,DS3 IPM

LI/LO NI/NO EI,E2 52C

SW1 SW2 SW3 SW4 SW5

Connection Terminal<U/V/W-Phase> Connection Terminal<L/N-Phase> Connection Terminal<DC Voltage> Connection Terminal<DC Voltage> Diode Bridge Power Module

Connection Terminal<L-Phase> Connection Terminal<N-Phase> Connection Terminal<Ground> 52C Relay Controller Circuit Board Switch<Display Selection> Switch<Function Selection> Switch<Test Run> Switch<Model Selection> Switch<Function Selection>

SW6 SW7 SW8 SWU1 SWU2 CNLVB

SS CN3D CN3S CN3N CN51 LED1,LED2 LED3 F1,F2 X501~505

M-NET P.B.

TP1

Switch<Function Selection> Switch<Function Selection> Switch<Function Selection> Switch<Unit Address Selection, 1st digit> Switch<Unit Address Selection, 2nd digit> Connector<To N.F. Board CN52C>

(Symbol of Board is CNLVB) Connector<Connection For Option> Connector<Connection For Option> Connector<Connection For Option> Connector<Connection For Option> Connector<Connection For Option>

LED<Operation Inspection Display> LED<Power Supply to Main Microprocessor>

Fuse<T6,3AL250V> Relay M-NET Power Circuit Board ConnectionTerminal<Ground>

NOTES:

1.Refer to the wiring diagrams of the indoor units for details on wiring of each indoor unit. Self-diagnosis function The indoor and outdoor units can be diagnosed automatically using the self-diagnosis switch (SW1) and LED1, LED2 (LED indication) found on the multi-controller of the outdoor unit. LED indication : Set all contacts of SW1 to OFF.

• During normal operation

• The LED indicates the drive state of the controller in the outdoor unit.

Bit

Indication

1

Compressor operated

52C

2

3

21S4

4

SV15(SV2)

6

-

7

-

8

Always lit

• When faults requiring inspection occurs The LED alternately indicates the inspection code and the location of the unit in which the fault has occurred.

[Example] When the compressor and SV1 are turned during cooling operation.

12345678

22

C. B.

MF1

1

MS

3~

MF2

1

MS

3~

2

X505

52C

13

(BLK)

TB3

2

RED

M1

M2

RED

S

TO INDOOR UNIT CONNECTING WIRES DC 30V(Non-polar)

TB7

2

YLW

M1

M2

YLW

S

FOR CENTRALIZED CONTROL DC 30V(Non-polar)

POWER SUPPLY ~/N 208/230V 60Hz

TB1

RED

L1

BLU

L2

GRN

GR

CNF1

(WHT)

7

CNF2

(WHT)

7

3

1

3

21S4

CNDC (PNK)

X504

21S4

1

(GRN)

TH8

TH7 TH6 TH3 TH4

63HS

3

141 TH7/6

63HS

(RED)

(WHT)

TRANS

X503

3

1

(BLU)

4

7

t°

2

WHT

CE

+

RED

t° t° t°

TH3

(WHT)

X502

SV2

SV1

12 12

(WHT)

SV1

P. B.

1

CNAF

(WHT) 6 1

CN2

(WHT)

7

1

CN3

(WHT)

2

CN5

1

(RED)

2 1

CN4

(WHT)

2

TABN

TABP

t°

2112

TH4

(WHT)

3

63H

(YLW)

IPM

TABP2

RED

BLK

3

+

RED

ACTM

63L

113

63L

(RED)

X501

1

TABU

RED

V

U

MS 3~

DCL

+

-

F1

F2

SS

(WHT)

TABV

BLK

WHT

W

MC

L1 L2

63H

2

-

TABW

CN3D

CN3S

(WHT)

131313

CNAC (RED)

CNDC

(PIN)

1

3

+

CN3N

(RED)

(BLU)

(WHT)

1

LED3

CNS2

CNS1

(YLW)

(RED)

1

2

22

2

TABN1

U

BLK

TABN2

WHT

4

16

RED

P

N1 N2

Io

CNLVB

(RED)

16

1

5

CN51

(WHT)

CN4

CN2

(WHT)

7

1

2

7

2

TABT

DS3

-

+

TABS

DS2

-

+

TABP1

WHT

SWU2 SWU1

2

+1

2

CN41

(WHT)

1

4

BLU

WHT

RED

2

■

is the switch position.

SW6

SW5

SW2SW8SW1

SW7SW3SW4

LED2

LED1

CN102

(WHT)

1

4

CN40 (WHT)

1

4

3

1

(RED)

CNAC2

3

1

(WHT)

CNAC1

4

WHT

LO

L I

RED

+1 MODEL SELECT 1:ON 0:OFF

PUMY-P36NHMU PUMY-P48NHMU

NO

52C

U

N I

BLU

MODELS

BLU

U

4

1

5

N. F.

1

2

CN52C

1

2

CN5

CN2

(WHT)

CN1

(WHT)

(BLK)

E2

(RED)

E I

M-NET P.B.

4

TP1

BLK

1

2

BLK

2

BLK

SW4

123456 011010

011001

23

8

NECESSARY CONDITIONS FOR SYSTEM CONSTRUCTION

8-1. TRANSMISSION SYSTEM SETUP

3

2

4

1

5

0

6

9

7

8

3

2

4

1

5

0

6

9

7

8

005

3

2

4

1

5

0

6

9

7

8

3

2

4

1

5

0

6

9

7

004

003

8

3

2

4

1

5

0

6

9

7

8

3

2

4

1

5

0

6

9

7

8

105

Remote

controller

Remote

controller

Remote

controller

3

2

4

1

5

0

6

9

7

8

3

2

4

1

5

0

6

9

7

8

3

2

4

1

5

0

6

9

7

8

3

2

4

1

5

0

6

9

7

8

3

2

4

1

5

0

6

9

7

8

3

2

4

1

5

0

6

9

7

8

3

2

4

1

5

0

6

9

7

8

3

2

4

1

5

0

6

9

7

8

Indoor unitIndoor unitIndoor unitIndoor unitIndoor unit

006

007

Address SWAddress SWAddress SWAddress SWAddress SW

3

2

4

1

5

0

6

9

7

8

3

2

4

1

5

0

6

9

7

8

3

2

4

1

5

0

6

9

7

8

3

2

4

1

5

0

6

9

7

8

157

Remote

controller

107

Remote

controller

3

2

4

1

5

0

6

9

7

8

3

2

4

1

5

0

6

9

7

8

Address SWAddress SW

11

3

2

4

1

5

0

6

9

7

8

3

2

4

1

5

0

6

9

7

8

008

Piping

For remote

051

Outdoor unit

Transmission wire

controller

Indoor unit Indoor unit Indoor unit Indoor unit Indoor unit



3

2

4

1

5

0

6

9

7

8

3

2

4

1

5

0

6

9

7

8

002

001

3

2

4

1

5

0

6

9

7

8

3

2

4

1

5

0

6

9

7

8

3

2

4

1

5

0

6

9

7

8

3

2

4

1

5

0

6

9

7

8

Address SW Address SW Address SW Address SW Address SW



connected to each refrigerant

system (outdoor and indoor).

 A transmission wire must be

 Set addresses:

3

2

4

1

5

0

6

9

7

8

3

2

4

1

5

0

6

9

7

8

102 104 154

Remote

controller

101

1111

3

2

4

1

5

0

6

9

7

8

3

2

4

1

5

0

6

9

7

8

Address SW Address SW Address SW Address SW Address SW

1

Remote

controller

Outdoor unit ..............051-100

Indoor unit .................001-050

Remote controller .....101-200

The address automatically become

"100" if it is set as "01~50".

 PUMY has no 100ths digit switch.

For remote

056

Outdoor unit

controller

3

2

4

1

5

0

6

9

7

8

3

2

4

1

5

0

6

9

7

009

8

3

2

4

1

5

0

6

9

7

8

3

2

4

1

5

0

6

9

7

8

010

3

2

4

1

5

0

6

9

7

8

3

2

4

1

5

0

6

9

7

8

For centralized

management

24

For centralized

management

8-2. REFRIGERANT SYSTEM DIAGRAM PUMY-P36NHMU(-BS) PUMY-P36NHMUR1(-BS)

PUMY-P48NHMU(-BS) PUMY-P48NHMU

1(-BS) PUMY-P48NHMU2(-BS)

PUMY-P48NHMUR3(-BS)

Refrigerant flow in cooling Refrigerant flow in heating

Service port

Refrigerant Gas pipe

<5/8 inch>

Stop valve

4-way valve

Strainer

Pressure sensor (63HS)

Solenoid valve(SV1)

High pressure switch(63H)

Capillary tube

Thermistor<Saturation temperature of suction pressure>(TH6)

Check valve<Low pressure>

Strainer

Check valve <High pressure>

Oil separator

Strainer

Discharge thermistor(TH4)

Compressor thermistor(TH4)

(P36NHMUR1,P48NHMUR3)

Heatsink thermistor(TH8)

Refrigerant Liquid pipe

<3/8 inch>

Accumulator

Stop valve

Strainer

Low pressure switch(63L)

Compressor

Service port

Capillary tube (for oil separator) : :2.5 % :0.8 % L1000(mm) [:(3/32) % :(1/32) % L(39-1/2)] inch

Refrigerant piping specifications <dimensions of flared connector>

Capacity

Item

Liquid piping

Gas pipng

Thermistor(TH7) (Outdoor temperature)

Distributor

Thermistor(TH3) (Pipe temperature)

Unit:mm<inch>

Indoor unit

Outdoor unit

P06, P08, P12, P15, P18

P24, P30, P36, P48, P54

P36, P48

:6.35<1/4>

:9.52<3/8>

25

:12.7<1/2>

:15.88<5/8>

8-3. SYSTEM CONTROL

8-3-1. Example for the System

• Example for wiring control cables, wiring method and address setting, permissible lengths, and the prohibited items are listed in the standard system with detailed explanation. The explanation for the system in this section : Use one single outdoor unit and multiple outdoor units for M-NET remote control system.

Use one single outdoor unit and multiple indoor units in the multiple outdoor units for the M-NET remote control system.

A. Example of a M-NET remote controller system (address setting is necessary.)

Example of wiring control cables

1. Standard operation

1

TB7

L

IC

01

TB5

TB15

M1M2

S

L3

l1

S12

AB

101

RC

OC

51

TB3

M1M2

SAB

• 1 remote controller for each indoor unit.

• There is no need for setting the 100 position on the remote controller.

2. Operation using 2 remote controllers

OC

51

TB3

TB7

M1M2

SAB

Using 2 remote controllers

•

for each indoor unit.

S

AB AB AB AB

101

RC

(Main)

TB5

M1M2

IC

01

TB15

S12

151

RC

(Sub)

3. Group operation

OC

51

TB3

TB7

M1M2

SAB

S

• Multiple indoor units operated

TB5

M1M2

AB

101

RC

IC(Main)

01

TB15

S12

together by 1 remote controller

Combinations of 1 through 3 above are possible.

a. Use feed wiring to connect terminals M1 and M2 on

L2

IC

b. Connect terminals M1 and M2 on transmission cable

TB5

M1M2

02

TB15

S12

c. Set the address setting switch (on outdoor unit P.C.B)

l2

AB

102

RC

Indoor unit (IC)

Outdoor unit

(OC)

controller (RC)

a. Same as above. b. Same as above. c. Set address switch (on outdoor unit P.C.B) as

TB5

M1M2

IC

02

TB15

S12

Indoor Unit (IC)

Outdoor unit

Main Remote

102

RC

(Main)

152

RC

(Sub)

Controller (RC)

Sub Remote

Controller (RC)

a. Same as above. b. Connect terminals M1 and M2 on transmission cable

TB5

M1M2

IC(Sub)

02

S122

c. Set the address setting switch (on outdoor unit P.C.B)

TB15

Outdoor Unit

Main Remote

Controller

Sub Remote

Controller

d. Use the indoor unit (IC) within the group with the

most functions as the IC (Main) unit.

Wiring Method and Address Setting

transmission cable block (TB3) for the outdoor unit (OC) to terminals M1 and M2 on the transmission cable block (TB5) of each indoor unit (IC). Use nonpolarized 2 wire.

terminal block (TB5) for each indoor unit with the terminal block (TB6) for the remote controller (RC).

as shown below.

Unit

Range

001 to 050

Setting Method

—

Use the smallest

051 to 100

address of all the indoor unit plus 50.

Remote

101 to 150

Indoor unit address plus

100.

shown below.

Unit

Range

001 to 050

Setting Method

—

Use the smallest

(OC)

051 to 100

101 to 150

address of all the indoor units plus 50. Indoor unit address plus

100.

151 to 200

Indoor unit address plus

150.

terminal block (TB5) of the IC main unit with the most recent address within the same indoor unit (IC) group to terminal block (TB6) on the remote controller.

as shown below.

Unit

IC (Main)

IC (Sub)

Range

001 to 050

051 to 100

101 to 150

151 to 200

Use the smallest address within the same group of indoor units. Use an address, other than that of the IC (Main) in the same group of indoor units. This must be in sequence with the IC (Main).

Use the smallest address of all the indoor units plus 50. Set at an IC (Main) address within the same group plus 100. Set at an IC (Main) address within the same group plus 150.

Setting Method

26

• Name, Symbol and the Maximum Remote controller Units for Connection

Name Symbol Maximum units for connection

Outdoor unit

Indoor unit

M-NET remote controller

OC

IC

RC

One OC unit can be connected to 1-6 (P36)/1-8 (P48) IC units Maximum 2 RC for 1 indoor unit, Maximum 16 RC for 1 OC

—

Permissible Lengths Prohibited items

Longest transmission cable length

2

(1.25 mm

1 + L2, L2 + L3, L3 + L1 [ 200m

L

[AWG16])

[656ft] Remote controller cable length

1. If 0.5 to 1.25 mm

2

[AWG20 to AWG16]

1, R2 [10m [33ft]

R

2. If the length exceeds 10 meters [33ft], the exceeding section

2

should be 1.25 mm

[AWG16] and that section should be a value within the total extension length of the transmission cable and maximum transmission cable length. (L

3)

Same as above

• M-NET remote controller (RC) and MA remote controller (MA) cannot be used together.

• Do not connect anything with TB15 of indoor unit(IC).

TB3

M1M2

OC

51

TB7

SAB

TB3

S

OC

51

TB7

SAB

S

IC

01

TB5

TB15

M1M2

S12

TB5

M1M2

AB

101

RC

IC

01

TB15

S12

TB5

M1M2

IC

02

TB15

S12

TB5

M1M2

IC

02

TB15

S12

AB

TB15

MA

• Use the indoor unit (IC) address plus 150 as the sub remote controller address. In this case, it should be 152.

• Three or more remote

AB AB AB AB AB

101

RC

(Main)

151

RC

(Sub)

102

RC

(Main)

103

RC

(Sub)

104

controller (RC) cannot be connected to 1 indoor unit.

RC

Same as above

TB3

M1M2

OC

51

TB7

SAB

IC(Main)

01

TB5

TB15

M1M2

S

S12

TB5

M1M2

IC(Sub)

02

TB15

S12

2

• The remote controller address is the indoor unit main address plus

AB

100. In this case, it should be 101.

102

RC

27

B. Example of a group operation system with 2 or more outdoor units and a M-NET remote controller. (Shielding wires and address settings are necessary.)

L1

L2

L6L7

Examples of Transmission Cable Wiring

OC

(51)

TB3

M1M2S

M1 M2 S

TB7



OC

(53)

TB3

M1M2 S

M1 M2 S

TB7

Power Supply

Unit

M1M2S

G-50A

M1M2S

DV 12V



IC

(01)

TB5

M1 M2 S

1

N

AB AB AB

(101)

RC

L3

IC

(03)

TB5

M1 M2 S

IC

(02)

TB5

M1 M2 S

L4

IC

(04)

TB5

M1 M2 S

L5

4

N

AB

(104)

RC

TB5

M1 M2 S

2

N

(105)

RC

TB5

M1 M2 S

(05)

N

(07)



TB5

M1 M2 S

IC

(06)

IC

3

(155)

RC



IC



 : Group 1  : Group 3  : Group 5  : Shielded Wire  : Sub Remote Controller

( ): Address

a. Always use shielded wire when making connections between the outdoor unit (OC) and the indoor unit (IC), as well

for all OC-OC, and IC-IC wiring intervals.

b. Use feed wiring to connect terminals M1 and M2 and the ground terminal on the transmission cable terminal block (TB3)

of each outdoor unit (OC) to terminals M1 and M2 on the terminal S on the transmission cable block of the indoor unit (IC).

c. Connect terminals M1 and M2 on the transmission cable terminal block of the indoor unit (IC) that has the most

recent address within the same group to the terminal block on the remote controller (RC).

d. Connect together terminals M1, M2 and terminal S on the terminal block for central control (TB7) for the outdoor unit

(OC). e. DO NOT change the jumper connector CN41 on MULTI controller board. f. The earth processing of S terminal for the centralized control terminal block (TB7) is unnecessary.

Connect the terminal S on the power supply unit with the earth.

g. Set the address setting switch as follows.

Unit Range Setting Method

IC (Main) 01 to 00

IC (Sub) 01 to 50

Wiring Method Address Settings

Outdoor Unit 51 to 100

Main Remote Controller 101 to 150

Sub Remote Controller 151 to 200

MA Remote Controller —

Use the smallest address within the same group of indoor units. Use an address, other than that of the IC (Main) in the same group of indoor

units. This must be in sequence with the IC (Main). Use the smallest address of all the indoor units plus 50. *The address automatically becomes “100” if it is set as “01 - 50”. Set at an IC (Main) address within the same group plus 100.

Set at an IC (Main) address within the same group plus 150.

Unnecessary address setting (Necessary main/ sub setting)

h. The group setting operations among the multiple indoor units is done by the remote controller (RC) after the electrical

power has been turned on.

28

• Name, Symbol, and the Maximum Units for Connection

• Longest length via outdoor units : L1+L2+L3+L4, L1+L2+L3+L5, L1+L2+L6+L7 [ 500 meters [1640 ft] (1.25 mm2 [AWG16])

• Longest transmission cable length : L

• Remote controller cable length : R

1,R2, R2+R3, R4 [ 10 meters [33 ft] (0.5 to 1.25 mm

1, L3+L4, L3+L5, L6, L2+L6, L7 [ 200 meters (1.25 mm

2

[AWG16])

2

[AWG20 to AWG16])

If the length exceeds 10 meters [33 ft], use a 1.25 mm2 [AWG16] shielded wire. The

Permissible Length

length of this section (L and overall length.

5) should be included in the calculation of the maximum length

Prohibited items

 : Group 1  : Group 3  : Group 5  : Shielded Wire  : Sub Remote Controller

( ): Address

OC

(51)

TB3

M1M2S

M1 M2 S

TB7



OC

(53)

TB3

M1M2 S

M1 M2 S

TB7

Power Supply

Unit

M1M2S

G-50A

M1M2S

DV 12V



TB5

M1 M2 S

TB5

M1 M2 S

AB

(104)

RC

(02)

(04)

IC

TB5

M1 M2 S

(105)

RC

TB5

M1 M2 S

IC

(05)

(155)

IC

(07)

IC

(01)

TB5

M1 M2 S

AB AB AB

(101)

RC

IC

(03)

TB5

M1 M2 S



RC





IC

(06)

TB5

M1 M2 S

• Never connect together the terminal blocks (TB5) for transmission wires for indoor units (IC) that have been connected to different outdoor units (OC).

• Set all addresses to ensure that they are not overlapped.

• M-NET remote controller and MA remote controller cannot be connected with the indoor unit of the same group wiring together.

29

C. Example of a MA remote controller system (address setting is not necessary.) NOTE : In the case of same group operation, need to set the address that is only main indoor unit.

Example of wiring control cables Wiring Method and Address Setting

1. Standard operation

a. Use feed wiring to connect terminals M1 and M2 on

transmission cable block (TB3) for the outdoor unit

L

TB3

M1M2

1 L2

OC

TB5

M1M2

IC

00

TB15

S12

TB5

M1M2

IC

00

TB15

S12

00

TB7

S

M1M2

S

(OC) to terminals M1 and M2 on the transmission cable block (TB5) of each indoor unit (IC). Use nonpolarized 2 wire.

b. Connect terminals 1 and 2 on transmission cable

terminal block (TB15) for each indoor unit with the terminal block for the MA remote controller (MA).

• 1 remote controller for each indoor unit.

2. Operation using 2 remote controllers

OC

00

IC

00

TB3

TB7

M1M2

SM1M2

S

• Using 2 remote controllers

TB5

TB15

M1M2

S12

N3

AB

MA

for each indoor unit.

3. Group operation

OC

00

TB3

M1M2

S

TB7

M1M2

S

TB5

M1M2

N7

AB

N4

AB AB

MA

IC

00

TB15

S12

TB5

M1M2

N1

IC

00

S12

N5

TB15

AB

MAMA

AB

MA MA

IC

00

TB5

TB15

M1M2

S12

N2

a. The same as above. b. The same as above. c. In the case of using 2 remote controllers, connect

terminals 1 and 2 on transmission cable terminal block (TB15) for each indoor unit with the terminal block for 2 remote controllers.

N6

· Set the sub remote controller position for one of MA remote controller’s main switch.

Refer to the installation manual of MA remote con-

troller

a. The same as above. b. The same as above. c. Connect terminals 1 and 2 on transmission cable ter-

minal block (TB15) of each indoor unit, which is doing group operation with the terminal block the MA remote controller. Use non-polarized tow wire.

d. In the case of same group operation, need to set the

address that is only main indoor unit. Please set the address of the indoor unit with the most functions in the same group in the number that 01-50 is young.

AB

• Multiple indoor units operated

MA

together by 1 remote controller

Combinations of 1 through 3 above are possible.

N8

30