Mitsubishi Electronics OC366 User Manual

HFC

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

utilized

R410A

December 2010

No. OC366

TECHNICAL & SERVICE MANUAL 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-P48NHMU1-BS PUMY-P48NHMU2-BS PUMY-P48NHMUR3-BS

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.

CONTENTS

		1. TECHNICAL CHANGES................................... 3
			....................................
		2. SAFETY PRECAUTION			6
			......................................			9
		3. OVERVIEW OF UNITS
		...........................................			11
		4. SPECIFICATIONS
		................................................................
		5. DATA		......................	13
					18
		6. OUTLINES AND DIMENSIONS
		.........................................			20
		7. WIRING DIAGRAM		.....
					24
		8. NECESSARY CONDITIONS FOR SYSTEM CONSTRUCTION
		....................................			34
		9. TROUBLESHOOTING	....................................
		10. ELECTRICAL WIRING			81
				.....................
					84
		11. REFRIGERANT PIPING TASKS
		12. DISASSEMBLY PROCEDURE		........................
					88
		.....................................................
		13. PARTS LIST			93
		..........................................
Model name 14. RoHS PARTS LIST					96
indication		15. OPTIONAL PARTS..........................................			99

OUTDOOR UNIT

Revision:

"14. RoHS PARTS LIST " has been modified on page 98.

	Page	Revising point	Service Ref.	Incorrect	Correct
		STRUCTURAL PARTS	PUMY-P36NHMU(-BS)
	98	No. 1		T7W E03 662	T7W E06 662
			PUMY-P48NHMU2(-BS)
		SIDE PANEL(L)
		STRUCTURAL PARTS	PUMY-P36NHMU(-BS)
	98	No. 4		R01 E31 686	R01 E26 686
			PUMY-P48NHMU2(-BS)
		BASE ASSY
		STRUCTURAL PARTS	PUMY-P36NHMU(-BS)
	98	No. 5		R01 E27 130	R01 E19 130
			PUMY-P48NHMU2(-BS)
		MOTOR SUPPORT
		STRUCTURAL PARTS	PUMY-P36NHMU(-BS)
	98	No. 7		R01 E13 658	R01 E14 658
			PUMY-P48NHMU2(-BS)
		COVER PANEL (FRONT)
		STRUCTURAL PARTS	PUMY-P36NHMU(-BS)
	98	No. 8		R01 E11 658	R01 E24 658
			PUMY-P48NHMU2(-BS)
		COVER PANEL (REAR)
		STRUCTURAL PARTS	PUMY-P36NHMU(-BS)
	98	No. 11		T7W E08 668	T7W E06 668
			PUMY-P48NHMU2(-BS)
		SERVICE PANEL
		STRUCTURAL PARTS	PUMY-P36NHMU(-BS)
	98	No. 13		R01 E14 641	R01 E29 641
			PUMY-P48NHMU2(-BS)
		TOP PANEL

2

1 TECHNICAL CHANGES

PUMY-P36NHMU PUMY-P36NHMU-BS PUMY-P48NHMU2 PUMY-P48NHMU2-BS

PUMY-P36NHMUR1 PUMY-P36NHMUR1-BS PUMY-P48NHMUR3 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) does not have this function.

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-P12NBMU PKFY-P06NAMU PMFY-P08NBMU PMFY-P15NBMU PKFY-P08NAMU

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

3

(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	OFF		ON					Wiring
During defrost operation
CN22 input resistance ( )	0	20k	27k		39k	62K
CN22 input (cable color)	None	Black	Blue		White	Red
FAN SPEED SETTING		Setting on
	Stopped	remote	Very Low		Low	High
								CN22
		controller

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

(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		Fan speed	Fan speed
Signal		setting	setting
Thermo Condition		OFF	ON
SW1-7	SW1-8
OFF	OFF	Very low
ON	OFF	Low	Setting on
		Setting on	remote
OFF	ON	remote	controller
		controller
ON	ON	Stopped

(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

Amb. 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

b

c

d

TH7 = Outdoor Temperature

-12:

0:

10:

20:

[10 F]

[32 F]

[50 F]

[68 F]

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 :) : the Outdoor unit runs in HP mode.

Stage 2 :(TH7 = 10: to -12:) : the Outdoor unit runs in HP mode with Auxiliary heating. Stage 3 :(TH7 = < -12:) : 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 :) : Auxiliary heating only (Outdoor unit is OFF).

Stage 2 :(TH7 = > 0: to 20:) : Auxiliary heating with Outdoor unit in HP mode. Stage 1 :(TH7 = > 20:) : 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					Indoor unit
			Adapter			control board
ElectricHeater sourcepower					Yellow	CN22
						CN24
			Red	1
	X		White	2
	+	X	Red	1	Green
Heater
Electric
			Red	2
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 mm2 ~ 1.25 mm2 (AWG22 to AWG16) Don`t extend the cable more than 10 meters (32ft).

Outdoor unit control board

Dip switch

SW4-4 "ON"

Recommended circuit	88H	FS1	H1
1-phase power	R
	S	FS2
supply
	88H		H2
208V, 230V/60Hz		FS1
	R
				FS1, 2 ----- Thermal fuse
	S	FS2
Wiring diagram				H1, H2 ----- Heater
			26H
				26H --------- Overheat protection

Control board	88H	thermostat
		88H --------- Electromagnetic contactor
	CN24

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		Flare tool
	Charge hose		Size adjustment gauge
	Gas leak detector		Vacuum pump adaptor
	Torque wrench		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

Unit

Gravimeter

[3] Service tools

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

No.	Tool name		Specifications
1	Gauge manifold	· Only for R410A
		· Use the existing fitting specifications.
		· Use high-tension side pressure of 5.3MPa·G or over.
2	Charge hose	· Only for R410A
		· Use pressure performance of 5.09MPa·G or over.
3	Electronic scale		—
4		· Use the detector for R134a, R407C or R410A.
5	Gas leak detector	· Attach on vacuum pump.
6	Adaptor for reverse flow check		—
7	Refrigerant charge base	· Only for R410A	· Top of cylinder (Pink)
		· Cylinder with syphon
8	Refrigerant recovery equipment		—

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	Outside		Thickness (mm) [inch]
dimensions[inch]	diameter (mm)	R410A		R22
1/4	6.35	0.8	[1/32]	0.8 [1/32]
3/8	9.52	0.8	[1/32]	0.8 [1/32]
1/2	12.70	0.8	[1/32]	0.8 [1/32]
5/8	15.88	1.0 [5/128]		1.0 [5/128]
3/4	19.05		—	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.

Dimension A

Flare cutting dimensions				(mm) [inch]
Nominal	Outside		Dimension A ( -+00.4 )
dimensions[inch]	diameter		R410A	R22
1/4	6.35	9.1	[11/32-23/64]	9.0
3/8	9.52	13.2	[1/2-33/64]	13.0
1/2	12.70	16.6	[41/64-21/32]	16.2
5/8	15.88	19.7	[49/64-25/32]	19.4
3/4	19.05		—	23.3

		Dimension B
Flare nut dimensions					(mm) [inch]
Nominal		Outside		Dimension B
dimensions[inch]	diameter[inch]		R410A		R22
1/4		6.35	17.0	[43/64]	17.0
3/8		9.52	22.0	[7/8]	22.0
1/2		12.70	26.0	[1-3/64]	24.0
5/8		15.88	29.0	[1-9/64]	27.0
3/4		19.05		—	36.0

3 Tools for R410A (The following table shows whether conventional tools can be used or not.)

Tools and materials	Use	R410A tools	Can R22 tools be used?	Can R407C tools be used?
Gauge manifold	Air purge, refrigerant charge	Tool exclusive for R410A
Charge hose	and operation check	Tool exclusive for R410A
Gas leak detector	Gas leak check	Tool for HFC refrigerant
Refrigerant recovery equipment	Refrigerant recovery	Tool exclusive for R410A
Refrigerant cylinder	Refrigerant charge	Tool exclusive for R410A
Applied oil	Apply to flared section	Ester oil, ether oil and		Ester oil, ether oil:
		alkylbenzene oil (minimum amount)		Alkylbenzene oil: minimum amount
Safety charger	Prevent compressor malfunction	Tool exclusive for R410A
	when charging refrigerant by
	spraying liquid refrigerant
Charge valve	Prevent gas from blowing out	Tool exclusive for R410A
	when detaching charge hose
Vacuum pump	Vacuum drying and air	Tools for other refrigerants can	(Usable if equipped	(Usable if equipped
	purge	be used if equipped with adop-	with adopter for rever-	with adopter for rever-
		ter for reverse flow check	se flow)	se flow)
Flare tool	Flaring work of piping	Tools for other refrigerants	(Usable by adjusting	(Usable by adjusting
		can be used by adjusting	flaring dimension)	flaring dimension)
		flaring dimension
Bender	Bend the pipes	Tools for other refrigerants can be used
Pipe cutter	Cut the pipes	Tools for other refrigerants can be used
Welder and nitrogen gas cylinder	Weld the pipes	Tools for other refrigerants can be used
Refrigerant charging scale	Refrigerant charge	Tools for other refrigerants can be used
Vacuum gauge or thermis-	Check the degree of vacuum. (Vacuum	Tools for other refrigerants
tor vacuum gauge and	valve prevents back flow of oil and refri-	can be used
vacuum valve	gerant to thermistor vacuum gauge)
Charging cylinder	Refrigerant charge	Tool exclusive for R410A

:Prepare a new tool. (Use the new tool as the tool exclusive for R410A.)

:Tools for other refrigerants can be used under certain conditions.

:Tools for other refrigerants can be used.

8

3 OVERVIEW OF UNITS

3-1. UNIT CONSTRUCTION

		Outdoor unit		P36	P48
	Indoor unit that		Capacity	Type 06 ~ Type 36	Type 06 ~ Type 54
			Number of units	1~ 6 unit	1~ 8 unit
	can be connected
			Total system wide capacity	50% ~130% of outdoor unit capacity

	CMY-Y62-G-E	CMY-Y64-G-E	CMY-Y68-G-E
Branching pipe	Branch header	Branch header	Branch header
components	(2 branches)	(4 branches)	(8 branches)

Model	Ceiling Cassette				Ceiling		Ceiling	Floor Standing		Ceiling
				Ceiling Concealed	mounted	Wall Mounted				Concealed
							Suspended
	4-way flow	2-way flow	1-way flow		built-in			Exposed	Concealed (Fresh Air)*1
	PLFY-P	PLFY-P	PMFY-P	PEFY-P	PDFY-P	PKFY-P	PCFY-P	PFFY-P		PEFY-P
Capacity NCMU-E NBMU-E		NLMU-E	NBMU-E NMLU-E NMHU-E NMSU-E		NMU-E	NAMU-E NGMU-E NFMU-E NGMU-E NEMU-E			NRMU-E NMHU-E-F
06
08
12
15
18
24
27
30
36
48
54

Decorative panel

	Name	M-NET remote controller	MA remote controller
Remote	Model number	PAR-F27MEA-US	PAR-21MAA
controller	Functions	• A handy remote controller for use in conjunction	• Address setting is not necessary.
		with the Melans centralized management system.
		• 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

Outdoor

unit

UL

model

PAC type

Refrigerant

Refrigerant

Sub-number

M-NET control

R410A/R22

R410A

L : Ceiling cassette

commonness

Outdoor unit

MULTI-S

K : Wall-mounted type

model type

E : Hidden skylight type

Frequency

Frequency

Power supply

Salt proof

conversion

UL model

conversion

type

C : Ceiling suspended type

N: Single phase

M: Ceiling cassette type

controller

M-NET control

controller

208/230V 60Hz

F : Floor standing type

Unit model type

Indicates equivalent

NEW frequency

converter

to Cooling capacity

one-to-many air conditioners

(flexible design type)

Power supply

Indicates equivalent

N: Single phase

208/230V

60Hz

to Cooling capacity

(2) Operating temperature range

		Cooling	Heating
Indoor-side intake air temperature		W.B. 15~24°C [59~75°F]	D.B. 15~27°C [59~81°F]
Outdoor-side intake air temperature		D.B. -5~46°C [23~115°F]*1	W.B. -18~15°C [0~60°F]
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.

■ In case of connecting fresh air type indoor unit

	Capacity of Fresh	Cooling				Heating
	air type indoor
Indoor-side and Outdoor-side	P30	D.B.21~43	[70~109°F]	*2	D.B.-10~20	[14~68°F]	*3
		W.B.15.5~35	[60~95°F]
intake air temperature	P54	D.B.21~43	[70~109°F]	*2	D.B.-5~20	[23~68°F]	*3
		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

10

4

SPECIFICATIONS

Item

Service Ref.

PUMY-P36NHMU(-BS)

PUMY-P36NHMUR1(-BS)

Cooling Capacity

Btu/h

36,000

Heating Capacity

Btu/h

40,000

Input (Cool)

*3

kW

3.22

Input Current (Cool)

*3

A

14.23/15.74

Power factor (Cool)

*3

%

98.4

Input (Heat)

*3

kW

2.93

Input Current (Heat)

*3

A

12.88/14.24

Power factor (Heat)

*3

%

98.9

EER (Cool)

*3

Btu/h/W

11.18

COP (Heat)

*3

W/W

4.00

Connectable indoor units (Max.)

6

Max. Connectable Capacity

Btu/h

46,800(130%)

Power Supply

Single phase , 60Hz , 208/230V

Breaker Size

30A

Max. fuse size

40A

Min.Circuit.Ampacity

26A

Sound level (Cool/Heat)

dB

49 / 51

External finish

Munsell 3Y 7.8/1.1

Refrigerant control

Linear Expansion Valve

Compressor

Hermetic

Model

ANB33FDHMT

ANB33FDSMT

Motor output

kW

2.2

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

Airflow

m3/min [CFM]

100 [3,530]

Dimensions (

H%W%D)

W

mm [in.]

950 [37-13/32]

D

mm [in.]

330+30 [13+1-3/16)

H

mm [in.]

1,350 [53-5/32]

Weight

kg [lbs]

130 [287]

Refrigerant

R410A

Charge

kg [lbs]

8.5 [18.7]

Oil (Model)

L [oz]

2.3 [73] (FV50S)

Protection

High pressure protection

HP switch

devices

Compressor protection

Discharge thermo,

Compressor thermo,

Over current detection

Over current detection

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

Liquid

:mm[inch]

9.52 [3/8]

Gas

:mm[inch]

15.88 [5/8]

Guaranteed operation range

(cool)

-5~ 46 DB [23~115°F DB]*2

(heat)

-18~ 15 WB [0~60°F WB]

Rating conditions

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

Cooling

Indoor

: D.B. 26.7°C / W.B. 19.4°C

*2. 10~46°C [50~115°F]DB : In case of

connecting PKFY-P06/P08 type indoor unit.

[D.B. 80°F / W.B. 67°F]

*3. Electrical data is for only outdoor unit.

Outdoor : D.B. 35°C [D.B. 95°F]

(In case of connecting 2 indoor units of PLFY-P18BM type)

Heating

Indoor

: D.B. 21.1°C [D.B. 70°F]

Btu/h=kW × 3,412 CFM=K/min × 35.31

lbs=kg/ 0.4536

Outdoor : D.B. 8.3°C / W.B. 6.1°C

*Above specification data is subject to rounding variation.

[D.B. 47°F / W.B. 43°F]

11

	Item					Service Ref.	PUMY-P48NHMU/NHMU1/NHMU2/NHMUR3(-BS)
	Cooling Capacity					Btu/h	48,000
	Heating Capacity					Btu/h	54,000
	Input (Cool)				*3	kW	4.97
	Input Current (Cool)				*3	A	24.0/21.7
	Power factor (Cool)				*3	%	99.5
	Input (Heat)				*3	kW	4.88
	Input Current (Heat)				*3	A	23.6/21.3
	Power factor (Heat)				*3	%	99.5
	EER (Cool)				*3	Btu/h/W	9.66
	COP (Heat)				*3	W/W	3.24
	Connectable indoor units (Max.)						8
	Max. Connectable Capacity					Btu/h	62,400 (130%)
	Power Supply						Single phase , 60Hz , 208/230V
	Breaker Size						30A
	Max. fuse size						40A
	Min.Circuit.Ampacity						26A
	Sound level (Cool/Heat)					dB	50 / 52
	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
			Airflow			m3/min [CFM]	100 [3,530]
	Dimensions (		H%W%D)		W	mm [in.]	950 [37-13/32]
					D	mm [in.]	330+30 [13+1-3/16)
					H	mm [in.]	1,350 [53-5/32]
	Weight					kg [lbs]	130 [287]
	Refrigerant						R410A
			Charge			kg [lbs]	8.5 [18.7]
			Oil (Model)			L [oz]	2.3 [73] (MEL56/NHMU(1), FV50S/NHMU2, NHMUR3)
	Protection		High pressure protection				HP switch
	devices
			Compressor protection				Discharge thermo, Over current detection(NHMU/NHMU1/NHMU2)
							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				Liquid	:mm[inch]	9.52 [3/8]
					Gas	:mm[inch]	15.88 [5/8]
	Guaranteed operation range					(cool)	-5~ 46 DB [23~115°F DB]*2
						(heat)	-18~ 15 WB [0~60°F WB]
Rating conditions						Note.*1. 20m[70ft]: In case of installing outdoor unit lower than indoor unit.
Cooling		Indoor		: D.B. 26.7°C / W.B. 19.4°C			*2. 10~46°C[50~115°F]DB : In case of connecting PKFY-P06/P08 type indoor unit.
				[D.B. 80°F / W.B. 67°F]			*3. Electrical data is for only outdoor unit.
		Outdoor : D.B. 35°C [D.B. 95°F]					(In case of connecting 2 indoor units of PLFY-P24BM type)
Heating		Indoor		: D.B. 21.1°C [D.B. 70°F]			Btu/h=kW × 3,412 CFM=K/min × 35.31	lbs=kg/ 0.4536
		Outdoor : D.B. 8.3°C / W.B. 6.1°C					*Above specification data is subject to rounding variation.
				[D.B. 47°F / W.B. 43°F]

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 06	Model 08	Model 12	Model 15	Model 18	Model 24	Model 27	Model 30	Model 36	Model 48	Model 54
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)		Outdoor unit power consumption (kW)		Outdoor unit current (A)/230V
Cooling	Heating	Cooling	Heating	Cooling	Heating
A 48,900	B 54,500	5.01	4.71	21.9	20.6

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				model capacity
				total model capacity of all indoor units
(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 520008000 = 7,520 Btu/h

18000

Model 18= 48,900 o 52000 = 16,930 Btu/h

• 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):

9000

Model 08=54,500 o 58000 = 8,460 Btu/h

20000

Model 18= 54,500 o 58000 = 18,790 Btu/h

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	Capacity(Btu/h)		Power Consumption(kW)		Current(A)/230V		Current(A)/208V
of Indoor units*	Cooling	Heating	Cooling	Heating	Cooling	Heating	Cooling	Heating
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

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	Capacity(Btu/h)		Power Consumption(kW)		Current(A)/230V		Current(A)/208V
of Indoor units*	Cooling	Heating	Cooling	Heating	Cooling	Heating	Cooling	Heating
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)

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	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]
		Rated heating capacity	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]

• 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.

Individual capacity under stated conditions = total capacity under the stated conditions o individual capacity at the rated time total capacity at the rated time

(3) Capacity correction factor curve

Figure 2. Heating performance curve

Figure 1. Cooling performance curve

1.4

1.4

Cooling capacity (ratio)

Heating

capacity (ratio)

:DB(°FDB)

	1.2							1.2						15 (59)
							:WB(°FWB)							21.1 (70)
	1.0						22 (71.6)	1.0						25 (77)
							20 (68)
							18 (64.4)							INDOOR
	0.8						16 (60.8)	0.8
							INDOOR
	0.6							0.6
								0.4
	1.4
							:WB(°FWB)	1.4						:DB(°FDB)
	1.2						22 (71.6)
							20 (68)	1.2						21.1 (70)
	1.0						18 (64.4)
							16 (60.8)	1.0						15 (59)
							INDOOR
														25 (77)
	0.8
								0.8						INDOOR
	0.6		Cooling power consumption					0.6
										Heating power consumption
			(ratio)
	0.4									(ratio)
								0.4
	-5	0	10	20	30	40	46 °C DB							15 °C WB
								-18	-12 -10	-5	0	5	10
	23	32	50	68	86	104 115 °F DB
								0	10 14	23	32	41	50	59 °F WB
			OUTDOOR
											OUTDOOR

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)																																																																																Cooling
	100																																																																															Heating
[%]	95																																																																													Heating P36, 48 models
	90
ratio	85
Capacity
	80																																																																													Cooling P48 model
	75																																																																													Cooling P36 model
	70
		5			10					15					20					25					30					35					40					45					50					55						60				65					70						75 80[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)	43	39	36	32	28	25	21	18	14
Outdoor Intake temperature (W.B.°C)	6	4	2	0	-2	-4	-6	-8	-10
Correction factor	1.0	0.98	0.89	0.88	0.89	0.9	0.95	0.95	0.95

5-4. NOISE CRITERION CURVES

PUMY-P36NHMU(-BS)
	MODE	SPL(dB)	LINE
PUMY-P36NHMUR1(-BS)	COOLING	49
	HEATING	51

	μbar)	90
	= 0.0002	80
	dB	70								NC-70
	dB (0
		60
	LEVEL,
										NC-60
		50
	PRESSURE
										NC-50
		40
										NC-40
	SOUND
		30
										NC-30
	BAND
		20	APPROXIMATE
	OCTAVE		THRESHOLD OF
			HEARING FOR							NC-20
			CONTINUOUS
		10	NOISE
			63	125	250	500	1000	2000	4000	8000

BAND CENTER FREQUENCIES, Hz

MICROPHONE

1m [3.3ft]

UNIT

1.5m

[4.9ft]

GROUND

17

	PUMY-P48NHMU(-BS)						MODE		SPL(dB)	LINE
	PUMY-P48NHMU1(-BS)						COOLING		50
							HEATING		52
	PUMY-P48NHMU2(-BS)
	PUMY-P48NHMUR3(-BS)
	μbar)	90
	dB = 0.0002	80
		70
	(0									NC-70
	dB
	LEVEL,	60
										NC-60
	PRESSURE	50
										NC-50
		40								NC-40
	SOUND
		30								NC-30
	BAND
		20	APPROXIMATE
	OCTAVE
			THRESHOLD OF
			HEARING FOR							NC-20
			CONTINUOUS
		10	NOISE
			63	125	250	500	1000	2000	4000	8000

BAND CENTER FREQUENCIES, Hz

6 OUTLINES AND DIMENSIONS

PUMY-P48NHMU

PUMY-P48NHMU-BS

PUMY-P48NHMU1

PUMY-P48NHMU1-BS

IntakeAirRear M10<W3/8>)Bolt(Foundation	175175	7/8>-<6		417<16-13/32>		holeOval3612-2% M10<W3/8>)Bolt(Foundation 21/32>-42<17/32>-56<2 DischargeAir
hole	19<3/4>			370<14-9/16>		28<1-3/32>
					56<2-7/32>	53<2-3/32>
notchedShapedU-2		7/8>-<6
				37<1-15/32>		3/4>-70<2
		600<23-5/8>
					330<13>	30<1-3/16>
				Side Air Intake
4 PIPING-WIRING DIRECTIONS		Piping and wiring connections	can be made from 4 directions:	front, right, rear and below.
3 FOUNDATION BOLTS		Please secure the unit firmly	with 4 foundation (M10<W3/8>)	bolts.(Bolts and washers must be purchased locally.)	<Foundation bolt height>	FOUNDATION
						30mm<1-3/16>
						.Max

1 FREE SPACE (Around the unit) 2 SERVICE SPACE

Dimensions of space needed	for service access are	shown in the below diagram.
The diagram below shows a	basic example.	Explanation of particular details is

<5-29/32> 150mm.Min

installation manuals etc.	FREE
given in the

<19-11/16> 500mm.Min

	Min.500mm <19-11/16>
Min.10mm<3/8>	Min.10mm<3/8> Service space

Min.10mm<3/8>

)
blockTerminal	concentrationForRight…… control	Ground for the transmission line Ground for concentration control	Service panel
Left …… Forsupplypowerthe (Centertransmission… Forlinethe
950<37-13/32>	Ground for the power supply ("GR"marking position)
	322<12-11/16>
	Handle

Air Intake	Side Air Intake
Rear

Handle

Min.150mm<5-29/32>	of Notes
Min.1000mm<39-3/8>	Example

Unit : mm <inch>

Handle

Front piping cover

Rear piping cover

Bottompiping hole (Knockout)

1088<42 - 27/32>

+1507<19-31/32>

+1423<16-21/32>

1

2

71<2-13/16>

71<2-13/16>

Drain hole

5-W33<1-5/16>

145

<5-23/32>

145

<5-23/32>

145

<5-23/32>

220

<8-21/32>

23<29/32>

3/16>-30<1

635<25>

371<14-19/32>

219<8-5/8>

81<3-3/16>

1350<53-5/32>

Wheninstalling the conduit. theSetattachment to the sideinnerof each panel.

1/2 Conduit attachment

Handle

Handle

W22<7/8>-2

9/16>-40<1

19/32>-74<2

mm<inch>

31<1-7/32>

Conduithole

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

Reartrunking hole (Knockout)

92

-

Rear piping hole

(Knockout)

/8>

5

40<1-9/16>

W

<3

92<3-5/8>

holeConduit

hole

(Knockout)

65<2-9/16>

W1/16>Knockout)-27<1-(2 Right trunking

9/16>-40<1

3/16>-55<2

5/8>-92<3

25/32> - 45<1

55<2 - 3/16>

27<1 - 1/16>

63<2 - 1/2>

73<2-7/8>

23<29/32>

92

5/8>

-

connectionpipeGAS……Refrigerant(FLARE):15.88 (5/8 inch) connectionpipeLIQUID……Refrigerant(FLARE): 9.52 (3/8 inch) VALVESTOPofIndication1…..+ connection location.

Air intake

KnockoutPipingHole Details

Right piping hole

(Knockout)

holeConduit

W1/16>Knockout)-27<1-(2 75

holetrunkingFront

W

<3

holepipingFront

(Knockout)

5/8>-92<3

9/16>-65<2

<2-31/32>

(Knockout)

19<3/4>

63<2 - 1/2>

73<2 - 7/8>

92<3 - 5/8>

25/32> - 45<1

27<1 - 1/16>

23<29/32>

63

23<29/32>

73<2 - 7/8>

<2 - 1/2>

55<2-3/16>

27<1-1/16>

9/16>-40<1

5/8>

-

92<3

W

18

PUMY-P36NHMU(-BS) PUMY-P36NHMUR1(-BS) PUMY-P48NHMU2(-BS) PUMY-P48NHMUR3(-BS)

holenotchedShapedU-2	M10<W3/8>)Bolt(Foundation	175	7/8>-<6		417<16-13/32>		3/4>-70<2	21/32>-42<1
		19<3/4>			370<14-9/16>		28<1-3/32>
						56<2-7/32>	53<2-3/32>
					37<1-15/32>
Rear Air Intake		175	7/8>-<6				Oval3612-2% hole (FoundationBolt M10<W3/8>)	56<2-7/32> Air Discharge
			600<235/8>-
						330<13>	30<1-3/16>
					Side Air Intake
	4 PIPING-WIRING DIRECTIONS		Piping and wiring connections	can be made from 4 directions:	front,right,rear and below.
	3 FOUNDATION BOLTS		Please secure the unit firmly	with 4 foundation (M10<W3/8>)	bolts.(Bolts and washers must be purchased locally.)	<Foundation bolt height>	FOUNDATION
							30mm<1-3/16>
								.Max

1 FREE SPACE (Around the unit) 2 SERVICE SPACE

Dimensions of space needed	for service access are	shown in the below diagram.
The diagram below shows a	basic example.	Explanation of particular details is

<5-29/32> 150mm.Min

installation manuals etc.	FREE
given in the

<19-11/16> 500mm.Min

	Min.500mm <19-11/16>
Min.10mm<3/8>	Service space
	Min.10mm<3/8>

Min.10mm<3/8>

)
blockTerminal	concentrationForRight…… control	Ground for the transmission line Ground for concentration control	Service panel
Left …… Forsupplypowerthe (Centertransmission… Forlinethe
950<37-13/32>	Ground for the power supply ("GR"marking position)
	322<12-11/16>
	Handle

Air Intake	Side Air Intake
Rear

Handle

Min.150mm<5-29/32>	of Notes
Min.1000mm<39-3/8>	Example

Unit : mm <inch>

Handle

Front piping cover

Rear piping cover

Bottompiping hole (Knockout)

1088<42 - 27/32>

+1507<19-31/32>

+1423<16-21/32>

1

2

71<2-13/16>

71<2-13/16>

Drain hole

5-W33<1-5/16>

145

<5-23/32>

145

<5-23/32>

145

<5-23/32>

220

<8-21/32>

23<29/32>

219<8-5/8>

3/16>-30<1

635<25>

371<14-19/32>

81<3-3/16>

1350<53-5/32>

Wheninstalling the conduit. theSetattachment to the sideinnerof each panel.

1/2 Conduit attachment

Handle

Handle

W22<7/8>-2

9/16>-40<1

19/32>-74<2

mm<inch>

31<1-7/32>

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

Reartrunking hole (Knockout)

92

-

Rear piping hole

(Knockout)

W

<3

5/8>

40<1-9/16>

92<3-5/8>

Conduithole

hole

9/16>-40<1

65<2-9/16>

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

45<1-25/32>

3/16>-55<2

5/8>-92<3

55<2 - 3/16>

27<1 - 1/16>

63<2 - 1/2>

73<2-7/8>

23<29/32>

92

5/8>

-

connectionpipeGAS……Refrigerant(FLARE):15.88 (5/8 inch) connectionpipeLIQUID……Refrigerant(FLARE):9.52 (3/8 inch) connectionVALVESTOPofIndication1…..+ location.

Air intake

KnockoutPipingHole Details

Right piping hole

(Knockout)

holeConduit W1/16>Knockout)-27<1-(2

holetrunkingFront

W

<3

holepipingFront

(Knockout)

5/8>-92<3

9/16>-65<2

(Knockout)

75 31/32> - <2

19<3/4>

63<2 - 1/2>

73<2 - 7/8>

92<3 - 5/8>

25/32> - 45<1

27<1 - 1/16>

23<29/32>

63

23<29/32>

73<2 - 7/8>

<2 - 1/2>

55<2-3/16>

27<1-1/16>

9/16>-40<1

5/8>

-

92<3

W

19

7 WIRING DIAGRAM

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

SYMBOL	NAME	SYMBOL	NAME	SYMBOL	NAME
TB1	Terminal Block <Power Supply>	MULTI.B.	Multi Controller Board	N.F.	Noise Filter Circuit Board
TB3	Terminal Block <Transmission>	F1,F2	Fuse<6.3A>	LI/LO	Connection Lead<L-Phase>
TB7	Terminal Block <Centralized Control>	F500	Fuse<3A>	NI/NO	Connection Lead<N-Phase>
MC	Motor for Compressor	SW1	Switch<Display Selection>	EI	Connection Terminal<Ground>
MF1,MF2	Fan Motor	SW2	Switch<Function Selection>	CNAC1/2	Connector
21S4	Solenoid Valve<Four way valve>	SW3	Switch<Test Run>	CN5	Connector
SV1	Solenoid Valve<Bypass valve>	SW4	Switch<Model Selection>	M-P.B.	Transmission Power Board
TH3	Thermistor<Outdoor Pipe Temperature>	SW5	Switch<Function Selection>	CN1	Connector<To Noise Filter Circuit Board>
TH4	Thermistor<Discharge Temperature>	SW6	Switch<Function Selection>	CN2	Connector<To Multi Controller Board>
TH6	Thermistor<Low Pressure Saturated Temperature>	SW7	Switch<Function Selection>
TH7	Thermistor<Outdoor Temperature>	SW8	Switch<Function Selection>
TH8	Thermistor<Heatsink>	SWU1	Switch<Unit Address Selection, 1s digit>
63HS	High Pressure Sensor<Discharge Pressure>	SWU2	Switch<Unit Address Selection, 10ths digit>
63H	High Pressure Switch	TRANS	Transformer
63L	Low Pressure Switch	LED1,2	Digital Indicator<Operation Inspection Display>
CB	Main Smoothing Capacitor	LED3	LED<Power Supply to Main Microcomputer>
ACTM	Active filter Module	CNS1	Connector<Multi System>
RS	Rush Current Protect Resistor	CNS2	Connector<Centralized Control>
DCL	Reactor	CNAC	Connector<To Noise Filter Circuit Board>
P.B.	Power Circuit Board	CNDC	Connector<Power circuit board>
U/V/W	Connection Terminal<U/V/W-Phase>	CN2	Connector<To Power Circuit Board>
TAB-S/T	Terminal<L/N-Phase>	CN4	Connector<To Power Circuit Board>
TAB-P/P1/P2	Terminal<DCVoltage>	CN40	Connector<Centralized Control Power Supply>
TAB-N/N1/N2	Terminal<DCVoltage>	CN41	Connector<For storing Jumper Connector>
CN2~5	Connector	TH3	Connector<Thermistor>
CNDC	Connector	TH4	Connector<Thermistor>
CNAF	Connector	TH7/6	Connector<Thermistor>
IPM	Inverter	63HS	Connector<High Pressure Sensor>
LED1	Light Emitting Diodes <Inverter Control Status>	63H	Connector<High Pressure Switch>
		63L	Connector<Low Pressure Switch>
		CNF1,CNF2	Connector<Fan Motor>
		21S4	Connector<Four-way Valve>
		SV1	Connector<Bypass Valve>
		SS	Connector<For Option>
		CN3D	Connector<For Option>
		CN3S	Connector<For Option>
		CN3N	Connector<For Option>
		CN51	Connector<For Option>
		X501~505	Relay

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). 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.

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									[Example]
									When the compressor and
The LED indicates the drive state of the controller in the outdoor unit.									SV1 are turned during cooling
Bit	1	2	3	4	5	6	7	8	operation.
									1	2 3	4 5	6 7	8
Indication	Compressor	52C	21S4	SV1	(SV2)	–	–	Always lit
	operated

When faults requiring inspection occurs

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

20

63HS TH7TH6 TH3 TH4 63L 63H

MULTI. B.

1

4 5 6 7

CNF1

1 2 3

1 2 3 4

1 2

1 2

CN3D CN3S CN3N

SWU2 SWU1 SW5

SW6

(WHT) (RED) (BLU)

(WHT)

63HS

TH7/6

TH3

TH4

MF1

(WHT)

(RED)

(WHT)(WHT)

1 2 3

1 2 3

1 2 3

SW1 SW8 SW2

1

4 5 6 7

CNF2

63H

1

3

63L

SW4 SW3 SW7

(YLW)

(RED)

1 2 3 4 5 +1

MF2

(WHT)

1

3

CN51

(WHT)

LED1

LED2

F500

CN2

CN4

88

88

3

TRANS

1

(WHT)

(WHT)

7 6 5 4 3 2 1

2 1

CNDC

LED3

CN102

(PNK)

F1

X505

X504

X503

X502

X501

(WHT)

F2

CNS1

CNS2

CN41

CN40

4 3 2 1

52C

21S4

SV2

SV1

SS

CNAC

(BLK)

(GRN)

(BLU)

(WHT)

(WHT)

(RED)

(YLW)

(WHT)

(WHT)

3

1

3

1

3

1

2 1

3

1

2 1 (RED)

2 1

2 1

4 3 2 1

4 3 2 1

21S4

SV1

M-P.B.

1 2 3 4

CN2

DCL

(WHT)

TB3

TP1

L1

L2

1 2 3 4 5 6

(BRN)

M1

52C

+

P

CN1

M2

N1

(WHT)

S

(BRN)

-

N2

3

1

RS

I

TO INDOOR UNIT

ACTM

CONNECTING WIRES

DC 30V(Non-polar)

P. B.

TB7

1

TABT

2

-

CNAF

~

3

M1

(ORN)

+

4

TABP2

CNDC

~

5(WHT)

M2

1 6

(PIN)

-

TABS

N. F.

S

(ORN)

3 2

CN2

1

~

+

~

4

(WHT)

3

TABP1

LO

FOR CENTRALIZED

7 6 5

+

-

TABN1

3

TH8

CN3

NO

CONTROL

1

1

DC 30V(Non-polar)

1 2

(WHT)

CNAC2

CN5

CN5

(RED)

(RED)

2

(RED)

+

1

CN4

1 3

2

21(WHT)

U V W

E I

+

TABN

TABN2

CNAC1

TABP

(WHT)

LI

NI

CB

RED WHT BLK

POWER SUPPLY

~/N

MC

NO FUSE AC208V/230V

BREAKER 60Hz

L1

L2

GR

<+1 MODEL SELECT>

MODELS

SW4

PUMY-P48NHMU OFFON

2

3

4

5

6

1

The black square ( ) 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-P48NHMU2(-BS)			PUMY-P48NHMUR3(-BS)
	SYMBOL	NAME			SYMBOL	NAME		SYMBOL	NAME
	TB1	Terminal Block <Power Supply>		P.B.		Power Circuit Board		SW6	Switch<Function Selection>
	TB3	Terminal Block <Communication Line>			TABU/V/W	Connection Terminal<U/V/W-Phase>		SW7	Switch<Function Selection>
	TB7	Terminal Block <Centralized Control Line>			TABS/T	Connection Terminal<L/N-Phase>		SW8	Switch<Function Selection>
	MC	Motor For Compressor			TABP1/P2/P	Connection Terminal<DC Voltage>		SWU1	Switch<Unit Address Selection, 1st digit>
	MF1,MF2	Fan Motor			TABN1/N2/N	Connection Terminal<DC Voltage>		SWU2	Switch<Unit Address Selection, 2nd digit>
	21S4	Solenoid Valve<Four-Way Valve>			DS2,DS3	Diode Bridge		CNLVB	Connector<To N.F. Board CN52C>
	63H	High Pressure Switch			IPM	Power Module			(Symbol of Board is CNLVB)
	63L	Low Pressure Switch		N.F.		Noise Filter Circuit Board		SS	Connector<Connection For Option>
	63HS	High Pressure Sensor			LI/LO	Connection Terminal<L-Phase>		CN3D	Connector<Connection For Option>
	SV1	Solenoid Valve<Bypass valve>			NI/NO	Connection Terminal<N-Phase>		CN3S	Connector<Connection For Option>
	TH3	Thermistor<Outdoor Pipe>			EI,E2	Connection Terminal<Ground>		CN3N	Connector<Connection For Option>
	TH4	Thermistor<Discharge/Compressor>			52C	52C Relay		CN51	Connector<Connection For Option>
	TH6	Thermistor<Low Pressure Saturated>		C.B.		Controller Circuit Board		LED1,LED2	LED<Operation Inspection Display>
	TH7	Thermistor<Outdoor>			SW1	Switch<Display Selection>		LED3	LED<Power Supply to Main Microprocessor>
	TH8	Thermistor<Heatsink>			SW2	Switch<Function Selection>		F1,F2	Fuse<T6,3AL250V>
	DCL	Reactor			SW3	Switch<Test Run>		X501~505	Relay
	ACTM	Active Filter Module			SW4	Switch<Model Selection>	M-NET P.B.		M-NET Power Circuit Board
	CE	Main Smoothing Capacitor			SW5	Switch<Function Selection>		TP1	ConnectionTerminal<Ground>

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: 230 V). 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.

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	1	2	3	4	5	6	7	8
Indication	Compressor	52C	21S4	SV1	(SV2)	-	-	Always lit
	operated

• 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.

1 2 3 4 5 6 7 8

22

63HS TH7 TH6 TH3 TH4

63L

63H

C. B.

t°

t°

t°

t°

■is the switch position.

MF1

1

CNF1

1

3 1

4

1 2

2 1

CN3D CN3S CN3N

CNLVB

SWU2 SWU1 SW5

SW6

MS

7(WHT)

(WHT) (RED) (BLU)

(RED)

3~

63HS TH7/6

TH3

TH4

1

3 1

3 1

3

1

6

(WHT) (RED) (WHT) (WHT)

SW1

SW8 SW2

MF2

CNF2

163L3

2

1

1

5

SW4 SW3 SW7

4

MS

7(WHT)

1

(RED)

CN51

+1

3~

3

(WHT)

M-NET P.B.

CN4

3

63H

CN2

7

(WHT)

LED1

LED2

2

TRANS

(YLW)

1 (WHT)

1

2

1 CN2 4

LED3

1

2

(WHT)

CNDC

7

TP1 BLK

(PNK)

F1

CN102

CN1

X505

X504

X503

X502

X501

5 (WHT)1

F2

CNS1

CNS2

CN41

CN40

(WHT)

4

1

52C

1 21S4 3

1 SV2

SV1 3

1

(RED) (YLW)

4(WHT)1

4(WHT)1

3

1

3

2

1

SS

2

1 CNAC

1 2

1 2

4

2

(BLK)

(GRN)

(BLU)

(WHT)

(WHT)

(RED)

21S4

SV1

2

2

2

P. B.

4

1

DS3

TABT BLU

CNAF

TB3

-

(WHT)

CNDC

+

M1

RED 2

6

7

(PIN)

2

DS2

TABS WHT

1

1

M2

CN2

TABP2

IPM

3

-

WHT

RED

+

(WHT)

TABP1 RED

S

7

+

-

LO

CN3

RED

TABN1

DC 30V(Non-polar)

TH8

1

BLK

52C

1

CN5

TO INDOOR UNIT

t°

2

2 (WHT)

U

CONNECTING WIRES

2 (RED)

2

+

1

CN4

WHT

2 (WHT)

TABN

TABV

TABW

TABN2

TB7

RED

TABU

CE

+

TABP

2

M1

YLW 2

RED

WHT BLK

WHT

3

1

S

V

MC

CNAC2 (RED)

3~

M2 YLW

U MS W

FOR CENTRALIZED

3

CONTROL

2

DC 30V(Non-polar)

DCL

4

1

RED

+

L1

L2

1

P 6

RED

CNAC1 (WHT)

-

N1

BLK

N2

WHT

L I

POWER SUPPLY

Io

RED

~/N 208/230V 60Hz

ACTM

TB1

U

BLU	N. F.
NO
	1	2
	2
	CN52C (BLK)

BLK

		E2
	1	2
	2
		(RED)
	CN5
		BLK
I	U	E I
N
BLU

L1	RED
	BLU
L2
	GRN	+1 MODEL SELECT 1:ON 0:OFF
GR
			MODELS			SW4
				1	2	3	4	5	6
			PUMY-P36NHMU	0	1	1	0	1	0
			PUMY-P48NHMU	0	1	1	0	0	1

23

8 NECESSARY CONDITIONS FOR SYSTEM CONSTRUCTION

8-1. TRANSMISSION SYSTEM SETUP

Indoor unit

005

Indoor unit

004

Indoor unit

003

Indoor unit

002

			Indoor unit		001
Piping		Transmission wire
		For remote controller
		1	2	34
					5
		0
		9		7	6
Outdoorunit	051		8
		1	2	34
					5
		0
		9		7	6
			8
	For centralized management

Address SW

Address SW

Address SW

Address SW

Address SW

1	2
0

9
	8
1	2
0
9
	8

1	2
0

9
	8
1	2
0
9
	8

1	2
0

9
	8
1	2
0
9
	8

1	2
0

9
	8
1	2
0
9
	8

1	2
0

9
	8
1	2
0
9
	8

3
4
	5
7	6
3
4
	5
7	6

3
4
	5
7	6
3
4
	5
7	6

3
4
	5
7	6
3
4
	5
7	6

3
4
	5
7	6
3
4
	5
7	6

3
4
	5
7	6
3
4
	5
7	6

Remote Remote Remote controller 104 controller 154 controller 105

Remote controller 102

Remote controller 101

SW	0	2	34
				5
	1
Address	9		7	6
		8
		8	7
	1	2	34
	0			5
	9			6
1
SW	0	2	34
				5
	1
Address	9		7	6
		8		6
		8	7
	1	2	34
				5
	0
	9
1
SW	0	2	34
				5
	1
Address	9			6
		8	7	6
	1	2	34
				5
	0
	9
		8	7
1

SW	0	2	34
				5
	1
Address	9		7	6
		8
	1	2	34
				5
	0
	9		7	6
		8
1
SW	0	2	34
				5
	1
Address	9			6
		8	7	6
	1	2	34
				5
	0
	9
		8	7
1

	A transmission wire must be connected to each refrigerant system (outdoor and indoor).	Set addresses: Outdoor unit ..............051-100 Indoor unit .................001-050 Remote controller .....101-200	PUMY has no 100ths digit switch. The address automatically become "100" if it is set as "01~50".

For remote controller

Outdoor unit	056
For centralized	management

Indoor unit

006

Indoor unit

007

Indoor unit

008

Indoor unit

009

Indoor unit

010

1	2	34
			5
0
9		7	6
	8
1	2	34
			5
0
9		7	6
	8

Address SW

Address SW

Address SW

Address SW

Address SW

1	2
0

9
	8
1	2
0
9
	8

1	2
0

9
	8
1	2
0
9
	8

1	2
0

9
	8
1	2
0
9
	8

1	2
0

9
	8
1	2
0
9
	8

1	2
0

9
	8
1	2
0
9
	8

3
4
	5
7	6
3
4
	5
7	6

3
4
	5
7	6
3
4
	5
7	6

3
4
	5
7	6
3
4
	5
7	6

3
4
	5
7	6
3
4
	5
7	6

3
4
	5
7	6
3
4
	5
7	6

Remote Remote controller 107 controller 157

SW	0	2	34
				5
	1
Address	9		7	6
		8		6
		8	7
	1	2	34
	0			5
	9
1
SW	0	2	34
				5
	1
Address	9		7	6
		8		6
		8	7
	1	2	34
				5
	0
	9
1

24

8-2. REFRIGERANT SYSTEM DIAGRAM

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

PUMY-P48NHMU(-BS) PUMY-P48NHMU1(-BS) PUMY-P48NHMU2(-BS) PUMY-P48NHMUR3(-BS)

Refrigerant flow in cooling

Refrigerant flow in heating

Service		Pressure sensor			Thermistor(TH7)
		(63HS)
port	Stop valve			High pressure
					(Outdoor temperature)
		4-way valve		switch(63H)
Refrigerant Gas pipe
		Solenoid
<5/8 inch>	Strainer
		valve(SV1)
		Capillary tube			Distributor
Thermistor<Saturation temperature				Check valve
of suction pressure>(TH6)		Strainer		<High pressure>
Check valve<Low pressure>			Oil separator		Thermistor(TH3)
				Strainer	(Pipe temperature)
				Discharge
	Accumulator	Low pressure		thermistor(TH4)
				Compressor
		switch(63L)
				thermistor(TH4)
		Compressor		(P36NHMUR1,P48NHMUR3)
Stop valve				Heatsink
Refrigerant Liquid pipe				thermistor(TH8)
<3/8 inch>	Strainer
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>			Unit:mm<inch>
	Capacity	Item	Liquid piping	Gas pipng
	Indoor unit	P06, P08, P12, P15, P18	:6.35<1/4>	:12.7<1/2>
		P24, P30, P36, P48, P54	:9.52<3/8>	:15.88<5/8>
	Outdoor unit	P36, P48	:9.52<3/8>	:15.88<5/8>

25

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

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

L1

L2

(OC) to terminals M1 and M2 on the transmission

cable block (TB5) of each indoor unit (IC). Use non-

OC

polarized 2 wire.

51

IC

IC

01

02

b. Connect terminals M1 and M2 on transmission cable

TB3

TB7

TB5

TB15

TB5

TB15

terminal block (TB5) for each indoor unit with the

terminal block (TB6) for the remote controller (RC).

M1M2 S

A B S

M1M2 S

1 2

M1M2 S

1 2

L3

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

l2

as shown below.

l1

A B

Setting Method

A B

102

Unit

Range

• 1 remote controller for each

101

RC

Indoor unit (IC)

001 to 050

—

indoor unit.

RC

Outdoor unit

Use the smallest

(OC)

051 to 100 address of all the indoor

• There is no need for setting the 100

unit plus 50.

position on the remote controller.

Remote

101 to 150 Indoor unit address plus

controller (RC)

100.

2. Operation using 2 remote controllers

a. Same as above.

OC

IC

IC

b. Same as above.

51

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

01

02

shown below.

Setting Method

TB3

TB7

TB5

TB15

TB5

TB15

Unit

Range

M1M2 S

A B S

M1M2 S

1 2

M1M2 S

1 2

Indoor Unit (IC)

001 to 050

—

Outdoor unit

Use the smallest

(OC)

051 to 100 address of all the indoor

units plus 50.

A B

A

B

A B

A

B

Main Remote

101 to 150 Indoor unit address plus

• Using 2 remote controllers

Controller (RC)

100.

101

151

102

152

for each indoor unit.

(Main)

(Sub)

(Main)

(Sub)

Sub Remote

151 to 200

Indoor unit address plus

Controller (RC)

150.

RC

RC

RC

RC

3. Group operation

a. Same as above.

b. Connect terminals M1 and M2 on transmission cable

terminal block (TB5) of the IC main unit with the most

OC

recent address within the same indoor unit (IC) group

to terminal block (TB6) on the remote controller.

IC(Main)

IC(Sub)

51

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

01

02

as shown below.

TB3

TB7

TB5

TB15

TB5

TB15

Unit

Range

Setting Method

IC (Main)

001 to 050 Use the smallest address within the

M1M2 S

A B S

M1M2 S 1 2

M1M2 S

1 2

same group of indoor units.

Use an address, other than that of

IC (Sub)

001 to 050

the IC (Main) in the same group

of indoor units. This must be in

sequence with the IC (Main).

Outdoor Unit

051 to 100

Use the smallest address of all the

A B

indoor units plus 50.

101

Main Remote

101 to 150

Set at an IC (Main) address within

• Multiple indoor units operated

Controller

the same group plus 100.

RC

Sub Remote

151 to 200

Set at an IC (Main) address within

together by 1 remote

Controller

the same group plus 150.

controller

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

most functions as the IC (Main) unit.

Combinations of 1 through 3 above are possible.

26

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

Name

Symbol

Maximum units for connection

Outdoor unit

OC

—

Indoor unit

IC

One OC unit can

be connected to 1-6 (P36)/1-8 (P48) IC units

M-NET remote controller

RC

Maximum 2 RC for 1 indoor unit, Maximum 16 RC for 1 OC

Permissible Lengths

Prohibited items

Longest transmission cable length

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

(1.25 mm2 [AWG16])

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

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

[656ft]

OC

Remote controller cable length

51

IC

IC

1. If 0.5 to 1.25 mm2

01

02

[AWG20 to AWG16]

R1, R2 [10m [33ft]

TB3

TB7

TB5

TB15

TB5

TB15

2. If the length exceeds 10 meters

M1M2 S

A B S

M1M2 S

1 2

M1M2 S

1 2

[33ft], the exceeding section

should be 1.25 mm2 [AWG16]

and that section should be a

A B

value within the total extension

TB15

length of the transmission cable

A B

MA

and maximum transmission

101

cable length. (L3)

RC

Same as above

OC

51

IC

IC

• Use the indoor unit (IC)

01

02

address plus 150 as

TB3

TB7

TB5

TB15

TB5

TB15

the sub remote controller

M1M2 S

A B S

M1M2 S

1 2

M1M2 S

1 2

address. In this case, it

should be 152.

• Three or more remote

A B

A

B

A

B

A

B

A B

controller (RC) cannot

be connected to 1

101

151

102

103

104

indoor unit.

RC

RC

RC

RC

RC

(Main)

(Sub)

(Main)

(Sub)

Same as above

OC

51

IC(Main)

IC(Sub)

01

02

TB3

TB7

TB5

TB15

TB5

TB15

M1M2 S A B S

M1M2 S

1 2

M1M2 S

1 2

• The remote controller

address is the indoor

unit main address plus

A

B

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
		OC
			IC	IC	IC	IC
		(51)
		TB3	(01)	(02)	(05)	(06)
			TB5	TB5	TB5	TB5
		M1M2S M1M2 S
			M1M2S	M1M2S	M1M2S	M1M2S
		TB7
			1		2
Wiring					3
	L2
Cable			A B		A B	A B
			(101)		(105)	(155)
			RC		RC	RC
Transmissionof		OC	L3		L4
				L5
			IC	IC	IC
		(53)		(04)	(07)
		TB3	(03)
			TB5	TB5	TB5
		M1M2S M1M2 S
			M1M2S	M1M2S	M1M2S
Examples		TB7
	L6	Power Supply	DV 12V	4
		Unit
		M1M2S
	L7	G-50A		A B
				(104)
		M1M2S		RC

		: 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
Settings		recent address within the same group to the terminal block on the remote controller (RC).
	e. DO NOT change the jumper connector CN41 on MULTI controller board.
	d. Connect together terminals M1, M2 and terminal S on the terminal block for central control (TB7) for the outdoor unit
		(OC).
Address	f. The earth processing of S terminal for the centralized control terminal block (TB7) is unnecessary.
	g. Set the address setting switch as follows.
		Connect the terminal S on the power supply unit with the earth.
Method
		IC (Main)	01 to 00	Use the smallest address within the same group of indoor units.
		Unit	Range	Setting Method
Wiring		IC (Sub)	01 to 50	Use an address, other than that of the IC (Main) in the same group of indoor
				Use the smallest address of all the indoor units plus 50.
				units. This must be in sequence with the IC (Main).
		Outdoor Unit	51 to 100	*The address automatically becomes “100” if it is set as “01 - 50”.
		Main Remote Controller	101 to 150	Set at an IC (Main) address within the same group plus 100.
		Sub Remote Controller	151 to 200	Set at an IC (Main) address within the same group plus 150.
		MA Remote Controller	—	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

Permissible Length

Prohibited items

• 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 : L1, L3+L4, L3+L5, L6, L2+L6, L7 [ 200 meters (1.25 mm2 [AWG16])

• Remote controller cable length : R1,R2, R2+R3, R4 [ 10 meters [33 ft] (0.5 to 1.25 mm2 [AWG20 to AWG16])

If the length exceeds 10 meters [33 ft], use a 1.25 mm2 [AWG16] shielded wire. The length of this section (L5) should be included in the calculation of the maximum length and overall length.

	OC
		IC	IC	IC	IC
	(51)
	TB3	(01)	(02)	(05)	(06)
		TB5	TB5	TB5	TB5
	M1M2S M1M2 S
		M1M2S	M1M2S	M1M2S	M1M2S
	TB7
		A B		A B	A B
		(101)		(105)	(155)
		RC		RC	RC
	OC
		IC	IC	IC
	(53)		(04)	(07)
	TB3	(03)
		TB5	TB5	TB5
	M1M2S M1M2 S
		M1M2S	M1M2S	M1M2S
	TB7

Power Supply

Unit

M1M2S

	DV 12V	A B
G-50A
		(104)
M1M2S		RC

: Group 1

: Group 3

: Group 5

: Shielded Wire

: Sub Remote Controller ( ): Address

•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
	L1		L2			(OC) to terminals M1 and M2 on the transmission
	OC					cable block (TB5) of each indoor unit (IC). Use non-
	00	IC		IC		polarized 2 wire.
		00		00		b. Connect terminals 1 and 2 on transmission cable
						terminal block (TB15) for each indoor unit with the
	TB3 TB7	TB5	TB15	TB5	TB15
						terminal block for the MA remote controller (MA).
	M1M2 S M1M2 S	M1M2 S	1 2	M1M2 S	1 2
						2
			1
			A B		A B
	• 1 remote controller for each		MA		MA
	indoor unit.

2. Operation using 2 remote controllers

a. The same as above.

OC

b. The same as above.

00

IC

IC

c. In the case of using 2 remote controllers, connect

00

00

terminals 1 and 2 on transmission cable terminal

block (TB15) for each indoor unit with the terminal

TB3

TB7

TB5

TB15

TB5

TB15

block for 2 remote controllers.

M1M2 S M1M2 S

M1M2 S

1 2

M1M2 S

1 2

4

6

· Set the sub remote controller position for one of

3

5

MA remote controller’s main switch.

Refer to the installation manual of MA remote con-

A B

A B

A

B

A

B

troller

• Using 2 remote controllers

MA

MA

MA

MA

for each indoor unit.

3. Group operation

a. The same as above.

b. The same as above.

OC

c. Connect terminals 1 and 2 on transmission cable ter-

00

IC

IC

minal block (TB15) of each indoor unit, which is doing

00

00

group operation with the terminal block the MA remote

controller. Use non-polarized tow wire.

TB3

TB7

TB5

TB15

TB5

TB15

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

M1M2 S M1M2 S

M1M2 S

1 2

M1M2 S

1 2

address that is only main indoor unit. Please set the

address of the indoor unit with the most functions in

7

the same group in the number that 01-50 is young.

A

B

• Multiple indoor units operated	MA
together by 1 remote		8
controller

Combinations of 1 through 3 above are possible.

30