Mitsubishi PUMY-P125YMA, PUMY-P125YMA1 Service Manual

SPLIT-TYPE, HEAT PMUP AIR CONDITIONERS

2003

No.OC272

REVISED EDITION-A

TECHNICAL & SERVICE MANUAL

R407C

Outdoor unit
[Model name]	[Service Ref.]
PUMY-P125VMA	PUMY-P125VMA
PUMY-P125YMA	PUMY-P125YMA
	PUMY-P125YMA1

Revision :

•PUMY-P125VMA and PUMY-P125YMA1 are added in REVISED EDITION-A.

•Please void OC272.

CONTENTS

1.TECHNICAL CHANGE ···············

2.SAFETY PRECAUTION···············

3.OVERVIEW OF UNITS···············

4.SPECIFICATIONS ·················

5.DATA ·······················

6.OUTLINES AND DIMENSIONS ············

7.WIRING DIAGRAM ·················

8.NECESSARY CONDITIONS FOR SYSTEM CONSTRUCTION ···22

9.TROUBLESHOOTING ···············

10.ELECTRICAL WIRING···············

11.REFRIGERANT PIPING TASKS ···········

12.DISASSEMBLY ···················

13.PARTS LIST ····················

OUTDOOR UNIT

1 TECHNICAL CHANGE

PUMY-P125YMA PUMY-P125YMA1

1.Addition of new function (Auto Change Over)

PUMY-P125YMA : Not equipped PUMY-P125YMA1 : Equipped

2.Difference of operation switching logic for the outdoor output connector (CN3D)

PUMY-P125YMA : CN3D 1-2 ······ OPEN : Heating CLOSE : Cooling PUMY-P125YMA1 : CN3D 1-2 ······ OPEN : Cooling CLOSE : Heating

3.Difference of the role of SW5-1 (function selection switch)

PUMY-P125YMA	: Fix the operation frequency ······························ ON : Fix	OFF : Normal
PUMY-P125YMA1	: Auto Change Over from Remote Controller ······ ON : Enable	OFF : Disable

2

2 SAFETY PRECAUTION

Cautions for using with the outdoor unit which adopts R407C refrigerant.

· Do not use the existing refrigerant piping.

-The old refrigerant and refrigerant oil in the existing piping contains a large amount of chlorine which may cause the refrigerant oil of the new unit to deteriorate.

· Do not use copper pipes which are broken, deformed or discolour .

In addition, be sure that the inner surfaces of the pipes are clean, free of hazardous sulphur and oxides, or have no dust / dirt, shaving particles, oils, moisture or any other contamination.

-If there is a large amount of residual oil (hydraulic oil, etc.) inside the piping and joints, deterioration of the refrigerant oil will result.

·Store the piping to be used during installation indoors and keep both ends of the piping sealed until just before brazing. (Store elbows and other joints in a plastic bag.)

-If dust, dirt, or water enters the refrigerant cycle, deterioration of the oil and compressor trouble may result.

·Use ester oil, ether oil or alkyl benzene (small amount) as the refrigerant oil to coat flares and flange connections.

-The refrigerant oil will degrade if it is mixed with a large amount of mineral oil.

Use liquid refrigerant to fill the system.

-If gas refrigerant is used to fill the system, the composition of the refrigerant in the cylinder will change and performance may drop.

· Do not use a refrigerant other than R407C.

-If another refrigerant (R22, etc.) is used, the chlorine in the refrigerant may cause the refrigerant oil to deteriorate.

· Use a vacuum pump with a service port.

-The vacuum pump oil may flow back into the refrigerant cycle and cause the refrigerant oil to deteriorate.

· Do not use the following tools that are used with conventional refrigerant.

(Gauge manifold , charge hose, gas leak detector, reverse flow check valve, refrigerant charge base, vacuum gauge, refrigerant recovery equipment)

-If the conventional refrigerant and refrigerant oil are mixed in the R407C, the refrigerant may deteriorated. -If water is mixed in the R407C, the refrigerant oil may deteriorate.

-Since R407C does not contain any chlorine, gas leak detectors for conventional refrigerant will not react to it.

· Do not use a charging cylinder.

-Using a charging cylinder may cause the refrigerant to deteriorate.

· Be especially careful when managing the tools.

-if dust, dirt, or water gets in the refrigerant cycle, the refrigerant may deteriorate.

· Do not use the drier which is sold in the field.

-The drier for R407C refrigerant is pre-attached to outdoor unit refrigerant circuit. -Some drier in the field are not in conformity with R407C refrigerant.

3

[1] Service tools

Use the below service tools as exclusive tools for R407C refrigerant.

No.	Tool name	Specifications
1	Gauge manifold	·Only for R407C.
		·Use the existing fitting SPECIFICATIONS. (UNF 7/16)
		·Use high-tension side pressure of 3.43MPa·G or over.
2		Charge hose ·Only for R407C.
		·Use pressure performance of 5.10MPa·G or over.

3Electronic scale

4		Gas leak detector		·Use the detector for R407C.
5	Adapter for reverse flow check.	·Attach on vacuum pump.
6		Refrigerant charge base.
7	Refrigerant cylinder.	·For R407C	·Top of cylinder (Brown)
			·Cylinder with syphon
8		Refrigerant recovery equipment.

[2] Notice on repair service

·After recovering the all refrigerant in the unit, proceed to working. ·Do not release refrigerant in the air.

·After completing the repair service, recharge the cycle with the specified amount of liquid refrigerant.

[3]Refrigerant recharging

(1)Refrigerant recharging process

1Direct charging from the cylinder.

·R407C cylinder are available on the market has a syphon pipe. ·Leave the syphon pipe cylinder standing and recharge it.

(By liquid refrigerant)

Unit

Gravimeter

(2) Recharge in refrigerant leakage case

·After recovering the all refrigerant in the unit, proceed to working. ·Do not release the refrigerant in the air.

·After completing the repair service, recharge the cycle with the specified amount of liquid refrigerant.

4

3 OVERVIEW OF UNITS

3-1. UNIT CONSTRUCTION

5HP

PUMY-P125VMA

PUMY-P125YMA

PUMY-P125YMA1

Outdoor unit

Indoor unit			Capacity			Type 20~Type 125
that can be			Number of units			1~8 units
connected
			Total system wide capacity		50~130% of outdoor unit capacity
				CMY-Y62-C-E		CMY-Y64-C		CMY-Y68		CMY-S65
	Branching pipe			Branch header		Branch header		Branch header		Multi distribution
	components			(2 branches)		(4 branches)		(8 branches)		Piping on outdoor
										unit
										(5 branches)

Model	Cassette Ceiling			Ceiling	Ceiling mounted	Wall Mounted	Ceiling	Floor standing
	4-way flow	2-way flow	1-way flow	Concealed	built-in		Suspended	Exposed	Concealed
Capacity	PLFY-P	PLFY-P	PMFY-P	PEFY-P	PDFY-P	PKFY-P	PCFY-P	PFFY-P	PFFY-P
20	–	20VLMD-A	20VBM-A	20VML-A / VMM-A	20VM-A	20VAM-A	–	20VLEM-A	20VLRM-A
25	–	25VLMD-A	25VBM-A	25VML-A / VMM-A	25VM-A	25VAM-A	–	25VLEM-A	25VLRM-A
32	32VKM-A 32VLMD-A 32VBM-A			32VML-A / VMM-A	32VM-A	32VGM-A	–	32VLEM-A	32VLRM-A
40	40VKM-A 40VLMD-A 40VBM-A			40VMH-A / VMM-A	40VM-A	40VGM-A	40VGM-A	40VLEM-A	40VLRM-A
50	50VKM-A 50VLMD-A		–	50VMH-A / VMM-A	50VM-A	50VGM-A	–	50VLEM-A	50VLRM-A
63	63VKM-A	63VLMD-A	–	63VMH-A / VMM-A	63VM-A	63VFM-A	63VGM-A	63VLEM-A	63VLRM-A
71	–	–	–	71VMH-A / VMM-A	71VM-A	–	–	–	–
80	80VAM-A 80VLMD-A		–	80VMH-A / VMM-A	80VM-A	–	–	–	–
100	100VAM-A 100VLMD-A		–	100VMH-A / VMM-A	100VM-A	100VFM-A	100VGM-A	–	–
125	125VAM-A	125VLMD-A	–	125VMH-A / VMM-A	125VM-A	–	125VGM-A	–	–

Decorative panel

	Name	M-NET remote controller	MA remote controller
Remote	Model number	PAR-F27MEA-E	PAR-20MAA-E
controller		• A handy remote controller for use in conjunction	• Addresses setting is not necessary.
	Functions	with the Melans centralized management system.	• Only the indoor unit for MA remote controller
		• Addresses must be set.	(the end of model name is -A) can be used.

5

3-2. UNIT SPECIFICATIONS

(1) Outdoor Unit

		PUMY-P125VMA	w
Service Ref.		PUMY-P125YMA
		PUMY-P125YMA1
Capacity	Cooling (kW)	14.0
	Heating (kW)	16.0
Motor for compressor (kW)		3.5

Cooling / Heating capacity indicates the maximum value at operation under the following condition.

w. Cooling	Indoor	: D.B. 27°C / W.B. 19.0°C
	Outdoor : D.B. 35°C
Heating	Indoor	: D.B. 20°C
	Outdoor : D.B. 7°C / W.B. 6°C

(2) Method for identifying MULTI-S model

■ Indoor unit < When using Model 80 > ■ Outdoor unit <When using model 125 >

P

L

F

Y

-

P

80

V

AM

-

A

PU

M

Y

-

P

125

V

M

A

Refrigerant

Refrigerant

PAC type

Outdoor unit

MA control

Sub-number

R407C/R22

R407C

L : Ceiling cassette

commonness

M-NET control

MULTI-S

K : Wall-mounted type

Frequency

Frequency

Power supply

E : Hidden skylight type

AM

conversion

conversion

V: Single phase

C : Ceiling suspended type

controller

KM

controller

220-230-240V

50Hz

M: Ceiling cassette type

M-NET

M

F : Floor standing type

Y: 3-phase

KM

control

LMD }

Indicates equivalent

380-400-415V 50Hz

NEW frequency converter

to Cooling capacity

380V

60Hz

one-to-many air conditioners

(flexible design type)

Power supply

Indicates equivalent

V: Single phase

220-230-240V 50Hz

to Cooling capacity

220V

60Hz

(3) Operating temperature range

		Cooling	Heating
Indoor-side intake air temperature		W.B. 15~24°C	D.B. 15~27°C
Outdoor-side intake air temperature		D.B. -5~46°C	W.B. -15~15.5°C
Notes	D.B. : Dry Bulb Temperature
	W.B. : Wet Bulb Temperature

6

3-3. SYSTEM LAYOUT

3-3-1. System layout

One outdoor unit using branching connectors can be connected to a maximum of eight indoor units.

■Examples of a branching method

	Outdoor unit
A
	B	C	D	e
First branch	a	b	c	d
(branching connector)	indoor	indoor	indoor	indoor
	1
		2	3	4

indoor

5

3-3-2. Notes on the connection of indoor and outdoor units

Note: When the total capacity of indoor units exceeds the capacity of the outdoor unit (more than 100%), the rated power of each indoor unit will be less when they are running simultaneously.

	Outdoor unit	PUMY-P125VMA
		PUMY-P125YMA
Indoor unit		PUMY-P125YMA1
Indoor unit that can connected		1~8 units
Available capacity of indoor unit		Type 20 ~ Type 125

Total capacity of units that can be included system

63~163

(50-130% of outdoor unit capacity)

3-3-3. Capacity for outdoor unit

(1) Branching pipe

Model	NUMBER OF BRANCHING POINTS

	CMY-Y62C-E			2
Branching connector	CMY-Y64-C			4
	CMY-Y68			8
	CMY-S65			5
(2) Examples of System Construction				(All models)
PIping method			Total capacity of
			indoor units.
				160
125	Outdoor unit
Indoor units		80	40	40
				7

4		SPECIFICATIONS
Item				Service Ref.		Unit	PUMY-P125VMA
			Rated Cooling capacity			kW	14.0
performance		Cooling	Rated power consumption			kW	6.10
			Operating current			A	28.3-27.1-26.0
			Operating power factor			%	98
			Starting current			A	17
			Rated Heating capacity			kW	16.0
Standard		Heating	Rated power consumption			kW	6.03
			Operating current			A	28.0-26.7-25.7
			Operating power factor			%	98
			Starting current			A	17
			Rated power supply				Single phase 220-230-240V 50Hz
External finish (Munsell colour-coded markings)							Molten-galvanized steel plate (with polyester coating), ivory white <5Y 8/1>
Dimensions H o W o D				(Note 1)		mm	1280 o 1020 o 350 (+30)
Heat exchanger type							Crossover fin
		Model					EEV48FAM
Compressor		Type o quantity				Legal tons	Fully enclosed type o 1
		Daily cooling capacity					1.9 (104Hz)
		Starting method					Frequency converter start
		Motor output				kW	3.5
		Capacity control				%	Cooling 27-100% Heating 25-100%
		Heater <crankcase>				W	—
		Refrigerating oil (Model)				L	1.4 (MEL32)
Fan		Type o quantity					Propeller (direct) o 2
		Airflow				k/min(CFM)	90(3,177)
		Motor output				W	60 o 2
Defrost method							Reverse cycle
Pressure gauge							—
Protection devices		High pressure protection					High pressure pressure sensor (3.0MPa)
		Compressor protection					Thermal switch
		Blower protection					Thermal switch
		Frequency converter circuit					Overheating, excessive current protection
Noise level						dB	54
Weight						kg(lbs)	127(280)
Refrigerant pipe size				Gas		[ mm	19.05
				Liquid		[ mm	9.52
Refrigerant			Type o charge amount			kg	R407C o 8.5
			Control method				Expansion valve
Note 1: External dimensions in parentheses indicate the dimensions of protruding parts.
Note 2: Rating conditions (JIS B 8616)
		Cooling : Indoor		: D.B. 27: W.B. 19:
			: Outdoor : D.B. 35: W.B. 24:
		Heating : Indoor		: D.B. 20:
			: Outdoor : D.B. 7: W.B. 6:

8

Item			Service Ref.		Unit	PUMY-P125YMA
						PUMY-P125YMA1
		Rated Cooling capacity			kW	14.0
performance	Cooling	Rated power consumption			kW	5.95
		Operating current			A	9.6-9.1-8.8
		Operating power factor			%	94
		Starting current			A	8.0
		Rated Heating capacity			kW	16.0
Standard	Heating	Rated power consumption			kW	5.58
		Operating current			A	9.2-8.8-8.5
		Operating power factor			%	92
		Starting current			A	8.0
		Rated power supply				3 phase 380-400-415V 50Hz
External finish (Munsell colour-coded markings)						Molten-galvanized steel plate (with polyester coating), ivory white <5Y 8/1>
Dimensions H o W o D			(Note 1)		mm	1280 o 1020 o 350 (+30)
Heat exchanger type						Crossover fin
	Model					EEV48FAK
Compressor	Type o quantity				Legal tons	Fully enclosed type o 1
	Daily cooling capacity					1.9 (104Hz)
	Starting method					Frequency converter start
	Motor output				kW	3.5
	Capacity control				%	Cooling 27-100% Heating 25-100%
	Heater <crankcase>				W	—
	Refrigerating oil (Model)				L	1.4 (MEL32)
Fan	Type o quantity					Propeller (direct) o 2
	Airflow				k/min(CFM)	90(3,177)
	Motor output				W	60 o 2
Defrost method						Reverse cycle
Pressure gauge						—
Protection devices	High pressure protection					High pressure pressure sensor (3.0MPa)
	Compressor protection					Thermal switch
	Blower protection					Thermal switch
	Frequency converter circuit					Overheating, excessive current protection
Noise level					dB	54
Weight					kg(lbs)	127(280)
Refrigerant pipe size			Gas		[ mm	19.05
			Liquid		[ mm	9.52
Refrigerant		Type o charge amount			kg	R407C o 8.5
		Control method				Expansion valve
Note 1: External dimensions in parentheses indicate the dimensions of protruding parts.
Note 2: Rating conditions (JIS B 8616)
	Cooling : Indoor		: D.B. 27: W.B. 19:
		: Outdoor : D.B. 35: W.B. 24:
	Heating : Indoor		: D.B. 20:
		: Outdoor : D.B. 7: W.B. 6:

9

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 page 11 to 14.

(1) Capacity of indoor unit

Model Number for indoor unit Model 20 Model 25 Model 32 Model 40 Model 50 Model 63 Model 71 Model 80 Model 100 Model 125

	Model Capacity						kW		22	28	36		45	56	71		80	90	112	140
(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-P125YMA
		• Indoor unit			PKFY-P25VAM-A o 2 , PLFY-P50VLMD-A o 2
2									According to the conditions in 1					, the total capacity of the indoor unit will be: 28 o 2 +
56 o 2 = 168
		Capacity (kW)							Outdoor unit power consumption (kW)				Outdoor unit current (A)
		Cooling			Heating				Cooling	Heating			Cooling	Heating
	A 14.60			B 16.33					6.04	5.14			8.9	7.8

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

model capacity

(1) The capacity of each indoor unit (kW) = the capacity A (or B ) o total model capacity of all indoor units

(2) Sample calculation (using the system described above in 4-1-1. (2) ):
During cooling:	During heating:

• The total model capacity of the indoor unit is: 2.8 o 2 + 5.6 o 2=16.8kW

Therefore, the capacity of PKFY-P25VAM-A and PLFY-P50VLMD-A will be calculated as follows by using the formula in 4-1-2. (1):

Model 25=14.6 o 2.8 = 2.43kW

16.8

Model 50=14.6 o 5.6 = 4.87kW

16.8

• The total model capacity of indoor unit is: 3.2 o 2 + 6.3 o 2=19.0

Therefore, the capacity of PKFY-P25VAM-A and PLFY- P50VLMD-A will be calculated as follows by using the formula in 4-1-2. (1):

Model 25=16.33 o 3.2 = 2.75kW

19.0

Model 50=16.33 o 6.3 = 5.41kW

19.0

10

5-2. STANDARD CAPACITY DIAGRAM

5-2-1. PUMY-P125VMA STANDARD CAPACITY DIAGRAM

	w Before calculating the sum of total capacity of indoor units, please convert							240V, 50Hz
		the valve into the kW model capacity following the formula on page 8.
	w	Total capacity of	Capacity (kW)		Power consumption (kW)		Current (A)
		indoor units (kW)	Cooling	Heating	Cooling	Heating	Cooling	Heating
		70	7.00	7.88	2.58	2.86	11.0	12.2
		71	7.10	8.00	2.61	2.89	11.1	12.3
		72	7.20	8.11	2.65	2.93	11.3	12.5
		73	7.30	8.22	2.69	2.97	11.5	12.6
		74	7.40	8.33	2.73	3.01	11.6	12.8
		75	7.50	8.44	2.76	3.04	11.8	13.0
		76	7.60	8.56	2.80	3.08	11.9	13.1
		77	7.70	8.67	2.84	3.12	12.1	13.3
		78	7.80	8.78	2.88	3.16	12.3	13.5
		79	7.90	8.89	2.92	3.20	12.4	13.6
		80	8.00	9.00	2.96	3.23	12.6	13.8
		81	8.10	9.10	3.00	3.27	12.8	13.9
		82	8.20	9.20	3.04	3.31	12.9	14.1
		83	8.30	9.30	3.08	3.35	13.1	14.3
		84	8.40	9.40	3.12	3.39	13.3	14.5
		85	8.50	9.50	3.16	3.43	13.5	14.6
		86	8.60	9.60	3.20	3.47	13.6	14.8
		87	8.70	9.70	3.25	3.51	13.8	15.0
		88	8.80	9.80	3.29	3.55	14.0	15.1
		89	8.90	9.90	3.33	3.59	14.2	15.3
		90	9.00	10.00	3.38	3.64	14.4	15.5
		91	9.10	10.10	3.42	3.68	14.6	15.7
		92	9.20	10.22	3.47	3.72	14.8	15.8
		93	9.30	10.33	3.51	3.76	15.0	16.0
		94	9.40	10.45	3.56	3.80	15.1	16.2
		95	9.50	10.56	3.60	3.85	15.3	16.4
		96	9.60	10.67	3.65	3.89	15.5	16.6
		97	9.70	10.79	3.69	3.93	15.7	16.8
		98	9.80	10.90	3.74	3.98	15.9	16.9
		99	9.90	11.02	3.79	4.02	16.1	17.1
		100	10.00	11.13	3.84	4.06	16.3	17.3
		101	10.10	11.24	3.89	4.11	16.6	17.5
		102	10.20	11.36	3.93	4.15	16.8	17.7
		103	10.30	11.47	3.98	4.20	17.0	17.9
		104	10.40	11.59	4.03	4.24	17.2	18.1
		105	10.50	11.70	4.08	4.29	17.4	18.3
		106	10.60	11.81	4.13	4.33	17.6	18.5
		107	10.70	11.93	4.19	4.38	17.8	18.6
		108	10.80	12.04	4.24	4.42	18.0	18.8
		109	10.90	12.16	4.29	4.47	18.3	19.0
		110	11.00	12.27	4.34	4.52	18.5	19.2
		111	11.10	12.38	4.39	4.56	18.7	19.4
		112	11.20	12.50	4.45	4.61	18.9	19.6
		113	11.30	12.63	4.50	4.66	19.2	19.8
		114	11.40	12.75	4.55	4.70	19.4	20.0
		115	11.50	12.88	4.61	4.75	19.6	20.2
		116	11.60	13.00	4.66	4.80	19.9	20.4
		117	11.70	13.13	4.72	4.85	20.1	20.7
		118	11.80	13.25	4.77	4.90	20.3	20.9
		119	11.90	13.38	4.83	4.94	20.6	21.1
		120	12.00	13.50	4.89	4.99	20.8	21.3
		121	12.10	13.63	4.94	5.04	21.1	21.5
		122	12.20	13.75	5.00	5.09	21.3	21.7
		123	12.30	13.88	5.06	5.14	21.5	21.9
		124	12.40	14.00	5.12	5.19	21.8	22.1
		125	12.50	14.13	5.17	5.24	22.0	22.3

11

5-2-2. PUMY-P125VMA STANDARD CAPACITY DIAGRAM

w Before calculating the sum of total capacity of indoor units, please convert							240V, 50Hzw
	the valve into the kW model capacity following the formula on page 8.
w	Total capacity of	Capacity (kW)		Power consumption (kW)		Current (A)
	indoor units (kW)	Cooling	Heating	Cooling	Heating	Cooling		Heating
	126	12.60	14.25	5.23	5.29	22.3		22.6
	127	12.70	14.38	5.29	5.34	22.5		22.8
	128	12.80	14.50	5.35	5.39	22.8		23.0
	129	12.90	14.63	5.41	5.45	23.1		23.2
	130	13.00	14.75	5.47	5.50	23.3		23.4
	131	13.10	14.88	5.53	5.55	23.6		23.6
	132	13.20	15.00	5.59	5.60	23.8		23.9
	133	13.30	15.13	5.66	5.65	24.1		24.1
	134	13.40	15.25	5.72	5.71	24.4		24.3
	135	13.50	15.38	5.78	5.76	24.6		24.5
	136	13.60	15.50	5.84	5.81	24.9		24.8
	137	13.70	15.63	5.91	5.87	25.2		25.0
	138	13.80	15.75	5.97	5.92	25.4		25.2
	139	13.90	15.88	6.04	5.97	25.7		25.4
	140	14.00	16.00	6.10	6.03	26.0		25.7
	141	14.02	16.01	6.11	6.02	26.0		25.6
	142	14.04	16.02	6.11	6.00	26.0		25.6
	143	14.06	16.03	6.11	5.98	26.0		25.5
	144	14.08	16.04	6.12	5.96	26.1		25.4
	145	14.10	16.06	6.12	5.95	26.1		25.3
	146	14.12	16.07	6.12	5.93	26.1		25.3
	147	14.15	16.08	6.13	5.91	26.1		25.2
	148	14.17	16.09	6.13	5.90	26.1		25.1
	149	14.19	16.10	6.13	5.88	26.1		25.0
	150	14.21	16.12	6.14	5.86	26.1		25.0
	151	14.23	16.13	6.14	5.85	26.2		24.9
	152	14.25	16.14	6.14	5.83	26.2		24.8
	153	14.27	16.15	6.15	5.81	26.2		24.8
	154	14.30	16.16	6.15	5.79	26.2		24.7
	155	14.32	16.17	6.15	5.78	26.2		24.6
	156	14.34	16.19	6.15	5.76	26.2		24.5
	157	14.36	16.20	6.16	5.74	26.2		24.5
	158	14.38	16.21	6.16	5.73	26.2		24.4
	159	14.40	16.22	6.16	5.71	26.3		24.3
	160	14.42	16.23	6.17	5.69	26.3		24.3
	161	14.45	16.25	6.17	5.68	26.3		24.2
	162	14.47	16.26	6.17	5.66	26.3		24.1
	163	14.49	16.27	6.18	5.64	26.3		24.0
	164	14.51	16.28	6.18	5.62	26.3		24.0
	165	14.53	16.29	6.18	5.61	26.3		23.9
	166	14.55	16.31	6.19	5.59	26.4		23.8
	167	14.57	16.32	6.19	5.57	26.4		23.7
	168	14.60	16.33	6.19	5.56	26.4		23.7
	169	14.62	16.34	6.20	5.54	26.4		23.6
	170	14.64	16.35	6.20	5.52	26.4		23.5
	171	14.66	16.36	6.20	5.51	26.4		23.5
	172	14.68	16.38	6.21	5.49	26.4		23.4
	173	14.70	16.39	6.21	5.47	26.5		23.3
	174	14.72	16.40	6.21	5.46	26.5		23.2
	175	14.75	16.41	6.22	5.44	26.5		23.2
	176	14.77	16.42	6.22	5.42	26.5		23.1
	177	14.79	16.44	6.22	5.40	26.5		23.0
	178	14.81	16.45	6.22	5.39	26.5		23.0
	179	14.83	16.46	6.23	5.37	26.5		22.9
	180	14.85	16.47	6.23	5.35	26.5		22.8
	181	14.87	16.48	6.23	5.34	26.6		22.7
	182	14.89	16.50	6.24	5.32	26.6		22.7

12

5-2-3. PUMY-P125YMA, PUMY-P125YMA1 STANDARD CAPACITY DIAGRAM

	w Before calculating the sum of total capacity of indoor units, please convert							415V, 50Hz
		the valve into the kW model capacity following the formula on page 8.
	w	Total capacity of	Capacity (kW)		Power consumption (kW)		Current (A)
		indoor units (kW)	Cooling	Heating	Cooling	Heating	Cooling	Heating
		70	7.00	7.88	2.47	2.63	3.8	4.2
		71	7.10	8.00	2.50	2.66	3.9	4.2
		72	7.20	8.11	2.54	2.70	3.9	4.3
		73	7.30	8.22	2.57	2.73	4.0	4.3
		74	7.40	8.33	2.61	2.77	4.0	4.4
		75	7.50	8.44	2.64	2.80	4.1	4.4
		76	7.60	8.56	2.68	2.84	4.1	4.5
		77	7.70	8.67	2.72	2.87	4.2	4.5
		78	7.80	8.78	2.76	2.91	4.2	4.5
		79	7.90	8.89	2.80	2.94	4.3	4.6
		80	8.00	9.00	2.83	2.98	4.3	4.7
		81	8.10	9.10	2.87	3.02	4.4	4.7
		82	8.20	9.20	2.91	3.05	4.4	4.8
		83	8.30	9.30	2.95	3.09	4.5	4.8
		84	8.40	9.40	2.99	3.13	4.6	4.9
		85	8.50	9.50	3.03	3.16	4.6	4.9
		86	8.60	9.60	3.07	3.20	4.7	5.0
		87	8.70	9.70	3.12	3.24	4.8	5.1
		88	8.80	9.80	3.16	3.27	4.8	5.1
		89	8.90	9.90	3.20	3.31	4.9	5.2
		90	9.00	10.00	3.24	3.35	5.0	5.2
		91	9.10	10.10	3.29	3.39	5.0	5.3
		92	9.20	10.22	3.33	3.43	5.1	5.4
		93	9.30	10.33	3.37	3.47	5.2	5.4
		94	9.40	10.45	3.42	3.51	5.2	5.5
		95	9.50	10.56	3.46	3.55	5.2	5.5
		96	9.60	10.67	3.51	3.59	5.3	5.5
		97	9.70	10.79	3.55	3.62	5.4	5.6
		98	9.80	10.90	3.60	3.67	5.4	5.7
		99	9.90	11.02	3.65	3.71	5.5	5.7
		100	10.00	11.13	3.69	3.75	5.6	5.8
		101	10.10	11.24	3.74	3.79	5.7	5.9
		102	10.20	11.36	3.79	3.83	5.7	5.9
		103	10.30	11.47	3.84	3.87	5.8	6.0
		104	10.40	11.59	3.88	3.91	5.9	6.0
		105	10.50	11.70	3.93	3.95	5.9	6.1
		106	10.60	11.81	3.98	3.99	6.0	6.2
		107	10.70	11.93	4.03	4.04	6.1	6.2
		108	10.80	12.04	4.08	4.08	6.2	6.3
		109	10.90	12.16	4.13	4.12	6.2	6.4
		110	11.00	12.27	4.18	4.16	6.3	6.4
		111	11.10	12.38	4.24	4.21	6.3	6.4
		112	11.20	12.50	4.29	4.25	6.4	6.5
		113	11.30	12.63	4.34	4.30	6.5	6.6
		114	11.40	12.75	4.39	4.34	6.6	6.6
		115	11.50	12.88	4.44	4.38	6.6	6.7
		116	11.60	13.00	4.50	4.43	6.7	6.8
		117	11.70	13.13	4.55	4.47	6.8	6.8
		118	11.80	13.25	4.61	4.52	6.9	6.9
		119	11.90	13.38	4.66	4.56	7.0	7.0
		120	12.00	13.50	4.72	4.61	7.1	7.0
		121	12.10	13.63	4.77	4.65	7.1	7.1
		122	12.20	13.75	4.83	4.70	7.2	7.2
		123	12.30	13.88	4.88	4.74	7.3	7.2
		124	12.40	14.00	4.94	4.79	7.4	7.3
		125	12.50	14.13	5.00	4.84	7.5	7.4

13

5-2-4. PUMY-P125YMA, PUMY-P125YMA1 STANDARD CAPACITY DIAGRAM

w Before calculating the sum of total capacity of indoor units, please convert							415V, 50Hzw
	the valve into the kW model capacity following the formula on page 8.
w	Total capacity of	Capacity (kW)		Power consumption (kW)		Current (A)
	indoor units (kW)	Cooling	Heating	Cooling	Heating	Cooling		Heating
	126	12.60	14.25	5.05	4.88	7.6		7.5
	127	12.70	14.38	5.11	4.93	7.6		7.5
	128	12.80	14.50	5.17	4.98	7.7		7.5
	129	12.90	14.63	5.23	5.03	7.7		7.6
	130	13.00	14.75	5.29	5.07	7.8		7.7
	131	13.10	14.88	5.35	5.12	7.9		7.7
	132	13.20	15.00	5.41	5.17	8.0		7.8
	133	13.30	15.13	5.47	5.22	8.1		7.9
	134	13.40	15.25	5.53	5.27	8.2		8.0
	135	13.50	15.38	5.59	5.32	8.3		8.0
	136	13.60	15.50	5.65	5.36	8.4		8.1
	137	13.70	15.63	5.71	5.41	8.5		8.2
	138	13.80	15.75	5.77	5.46	8.5		8.3
	139	13.90	15.88	5.84	5.51	8.6		8.3
	140	14.00	16.00	5.95	5.58	8.8		8.4
	141	14.02	16.01	5.96	5.57	8.8		8.4
	142	14.04	16.02	5.96	5.55	8.8		8.4
	143	14.06	16.03	5.96	5.53	8.8		8.4
	144	14.08	16.04	5.97	5.52	8.8		8.3
	145	14.10	16.06	5.97	5.50	8.8		8.3
	146	14.12	16.07	5.97	5.49	8.8		8.3
	147	14.15	16.08	5.98	5.47	8.9		8.3
	148	14.17	16.09	5.98	5.46	8.9		8.3
	149	14.19	16.10	5.98	5.44	8.9		8.2
	150	14.21	16.12	5.99	5.43	8.9		8.2
	151	14.23	16.13	5.99	5.41	8.9		8.2
	152	14.25	16.14	5.99	5.39	8.9		8.2
	153	14.27	16.15	5.99	5.38	8.9		8.1
	154	14.30	16.16	6.00	5.36	8.9		8.1
	155	14.32	16.17	6.00	5.35	8.9		8.1
	156	14.34	16.19	6.00	5.33	8.9		8.1
	157	14.36	16.20	6.01	5.32	8.9		8.0
	158	14.38	16.21	6.01	5.30	8.9		8.0
	159	14.40	16.22	6.01	5.28	8.9		8.0
	160	14.42	16.23	6.02	5.27	8.9		8.0
	161	14.45	16.25	6.02	5.25	8.9		7.9
	162	14.47	16.26	6.02	5.24	8.9		7.9
	163	14.49	16.27	6.03	5.22	8.9		7.9
	164	14.51	16.28	6.03	5.21	8.9		7.9
	165	14.53	16.29	6.03	5.19	8.9		7.8
	166	14.55	16.31	6.03	5.17	8.9		7.8
	167	14.57	16.32	6.04	5.16	8.9		7.8
	168	14.60	16.33	6.04	5.14	8.9		7.8
	169	14.62	16.34	6.04	5.13	8.9		7.8
	170	14.64	16.35	6.05	5.11	9.0		7.8
	171	14.66	16.36	6.05	5.10	9.0		7.8
	172	14.68	16.38	6.05	5.08	9.0		7.8
	173	14.70	16.39	6.06	5.06	9.0		7.7
	174	14.72	16.40	6.06	5.05	9.0		7.7
	175	14.75	16.41	6.06	5.03	9.0		7.7
	176	14.77	16.42	6.07	5.02	9.0		7.7
	177	14.79	16.44	6.07	5.00	9.0		7.6
	178	14.81	16.45	6.07	4.99	9.0		7.6
	179	14.83	16.46	6.07	4.97	9.0		7.6
	180	14.85	16.47	6.08	4.95	9.0		7.6
	181	14.87	16.48	6.08	4.94	9.0		7.6
	182	14.89	16.50	6.08	4.92	9.0		7.5

14

Rated cooling capacity

Rated heating capacity

Indoor D.B. 27°C / W.B. 19°C Outdoor D.B. 35°C

Indoor D.B. 20°C

Outdoor D.B. 7°C / W.B. 6°C

Service Ref.

PUMY-P125VMA PUMY-P125YMA PUMY-P125YMA1

(1)The performance curve charts (Figure 1, 2) show the rated capacity (total capacity) under the stated conditions when standard length for piping (5m) is used. The rated power is derived from the capacity ratio and power ratio obtained for the indoor and outdoor intake temperatures at time 1.

• Standard conditions:

5-3. CORRECTING COOLING AND HEATING CAPACITY

5-3-1. Correcting Changes in Air Conditions

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

•The capacity is the single value on the side of the outdoor unit; the capacity on the sides of each indoor unit must be added to obtain the total capacity.

(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 at the rated time

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

total capacity at the rated time

(3)Capacity correction factor curve
Figure 1. PUMY-P125VMA PUMY-P125YMA					Figure 2. PUMY-P125VMA PUMY-P125YMA
		PUMY-P125YMA1									PUMY-P125YMA1
	Cooling performance curve					Heating performance curve
Cooling	1.4				Heating	1.4												15
Capacity 1.2					Capacity	1.2
																		INDOOR
(ratio)					(ratio)													20
				22														<D.B. :>
	1.0					1.0												25
				20
				18
	0.8			16		0.8
				INDOOR
				<W.B. :>
	0.6				Heating	0.6
	1.4					1.4
Cooling					Power
Power	1.2			22	consumption	1.2
					(ratio)
consumption				20														20
(ratio)	1.0			18		1.0												15 INDOOR
				16														25 <D.B. :>
				INDOOR
	0.8			<W.B. :>		0.8
	0.6					0.6
	0.4					0.4
	-5 0	10	20	30 40 46		-12 -10			-5		0		5		10		15
		Outdoor	<D.B. :>						Outdoor				<W.B. :>

15

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

(1)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 (5m) from Figures 3 at first, and then multiply by the cooling capacity from Figure 1 to obtain the actual capacity.

(2)During heating, to find the equivalent piping length, first find the capacity ratio corresponding to standard piping length (5m) from Figure 4, and then multiply by the heating capacity from Figure 2 to obtain the actual capacity.

(1) Cooling capacity correction factor

Figure 3. PUMY-P125VMA PUMY-P125YMA PUMY-P125YMA1 Cooling capacity correction curve

1.0																													Total capacity for indoor unit
0.95
Cooling 0.9																												63 (50%)
Capacity																												94 (75%)
0.85																												125 (100%)
(ratio)
0.8																													163 (130%)
5		10 15					20			25			30			35			40			45			50			55

piping length (m)

(2) Heating capacity correction factor

Figure 4. PUMY-P125VMA PUMY-P125YMA PUMY-P125YMA1

Heating capacity correction curve

1.0

Heating

Capacity 0.95

(ratio)

0.9 5 10 15 20 25 30 35 40 45 50 55

piping length (m)

(3) Method for Obtaining the Equivalent Piping Length

Equivalent length for type 125 = (length of piping to farthest indoor unit) + (0.35 o number of bends in the piping) (m) Length of piping to farthest indoor unit: type 125.....70m

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.°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

16

	PUMY-P125VMA						NOTCH SPL(dB)			LINE
	PUMY-P125YMA							Hi	54
	PUMY-P125YMA1
	BAR	90
	MICRO	80
	0.0002	70								NC-70
	dB re
		60
	LEVEL,
										NC-60
		50
	PRESSURE
										NC-50
		40
										NC-40
	SOUND	30
										NC-30
			APPROXIMATE
	BAND	20
			THRESHOLD OF
			HEARING FOR							NC-20
			CONTINUOUS
	OCTAVE	10	NOISE
			63	125	250	500	1000	2000	4000	8000
				BAND CENTER FREQUENCIES, Hz

MICROPHONE

1m	1m

17

18

						•
	Air intake	Air outlet		Terminal block for transmission		UNITSOUTDOOR P125VMA-PUMY P125YMA-PUMY 1P125YMA-PUMY
				Terminal block for central control		Optional parts
				Terminal block for power source
						(base branching
Handle for moving
						pipe) installation
						hole
	Optional parts
Side air intake	installation hole
Rear air intake	Handle for
	moving
				Gas refrigerant-pipe
				connection {19.05 (3/4F)
				Liquid refrigerant pipe
				connection {9.52 (3/8F)
			Knock out hole for right piping
Rear piping hole		Knock out hole for	Knock out holes for
			power line 2-{27
	Piping cover	front piping		Knock out holes for power line		2-{29
		Oval holes
	(standard bolt M10)
		Bottom piping hole
			shaped notched holes
						: unit
		Drain hole	(standard bolt M10)
1...Indicates the dimensions of the cutoff valve connector.
		(3-{33 hole)
2...Make sure that the panel can be easily removed for maintenance						mm

when a piping cover is used for aesthetic reasons.

DIMENSIONS AND OUTLINES 6

7

WIRING DIAGRAM

PUMY-P125VMA

SYMBOL

NAME

SYMBOL

NAME

SYMBOL

NAME

SYMBOL

NAME

TB1

Terminal Block(Power Supply)

52C

Magnetic Contactor

N.F.

Noise Filter Circuit Board

CNS1

Connector(Multi system)

TB3

Terminal Block(Transmission)

21S4

4-Way Valve

LI/LO

Connection Lead(L-Phase)

CNS2

Connector(Centralized Control)

TB7

Terminal Block(Centralized Control)

SV

Solenoide Valve(Hot Gas Bypass)

NI/NO

Connection Lead(N-Phase)

CN4

Connector

CE

Smoothing Capacitor

LEV(A)

Expansion Valve

EI

Connection Terminal(Ground)

CN40

Connector(Centralized Control Power Supply)

C1,C2

Fan Motor Capacitor

MF1,MF2

Fan Motor(Inner Thermostat)

CNAC2

Connector

CN41

Connector(For String Jumper Connector)

DCL1~4

Reactor

MC

Compressor(Inner Thermostat)

CN5

Connector

CN51

Connector(Connected for Option)

RS

Resistor(Rush Current Protection)

Compressor drive signal,Error signal

ACTM

Active Filter Module

P.B.

Power Circuit Board

M.B.

Multi Circuit Board

CN3D

Connector(Connected for Option)

TH1

Thermistor(Discharge Temperature Detection)

U/V/W

Connection Terminal(U/V/W Phase)

F1,F2

Fuse(6.3A)

Auto Change Over Signal

TH2

Thermistor

CN2~6

Connector

SW1

Switch(Display Selection)

CN3S

Connector(Connected for Option)

(Low Pressure Saturated Temp.Detection)

CNDC

Connector

SW2

Switch(Function Selection)

Demand Signal

TH5

Thermistor

CNAF

Connector

SW3

Switch(Test Run)

X500

Relay(Magnetic Contactor)

(Pipe Temp.Detection / Judging Defrost)

IGBT

Converter,Inverter

SW4

Switch(Model Selection)

X501

Relay(4-Way Valve)

TH6

Thermistor(Outdoor Temp.Detection)

LED1

Light Emitting Diode(Inverter Control Status)

SW5

Switch(Function Selection)

X502

Relay(Solenoid Valve)

SW5-1 Auto Change Over

THHS A/B

Thermistor(Radiator Panel) A;ACTM,B;IGBT

Screw Type Terminal(L./N-Phase)

Digital Indication LED

SC-S,R

OFF;disabled ON;enabled

LED1,2

63HS

High Pressuer Sensor

SC-P1,P2

Screw Type Terminal(DC Voltage)

SW6

Switch(Function Selection)

Operation Inspection Indication

(Discharge Pressure Detection)

SC-N1,N2

Screw Type Terminal(DC Voltage)

SWU1

Switch(Unit Address Selection,1st digit)

49C

Thermal Switch(Compressor)

SWU2

Switch(Unit Address Selection,2nd digit)

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

FOR CENTRALIZED CONTROL

DC 30V (Non-polar)

NO FUSE BREAKER 32A

POWER SUPPLY L ~ / N 220-230-240V N

TB3
M1	BRN
M2	BRN
S
TB7
M1	ORN
M2	ORN
S

TB1

L

N

*1 The address automatically				RED		RED
			MF2 C2		MF1 C2
becomes "100" if it is
				ORN		ORN
set as "01~50".	LEV
			WHT	BLU	WHT	BLU
	49C
			1 3		1 3
	6			BLU		BLU
			WHT		WHT
	YLW	YLW

< M.B.>		6 5 4 3 2 1					3	1			3 2 1		3 2 1	MF2 1 3	1 3		MF1
		LEV-A (WHT)			49C(GRY)					CN3S(WHT)			CN3D(WHT) (WHT)			(WHT)
	2	CNS1	LED1					LED2				CN51	1
	1	(RED)										(WHT)	2		F.C		52C(ORG)
													3 3.12V					YLW
	2	CNS2											4 4.COMP. ON				1		52C
																		YLW
		(YLW)											5 5.Error				3
	1
			*1	901				901									X500
				8			2	8		2		SW4					21S4(GRN)
				7				7
	2	TH2			6		3	6		3							1	BLU
						4			4			ON
TH2	1	(WHT)			5			5										BLU	21S4
				SWU2				SWU1				OFF		1 2 3 4	1 2 3 4		3
																	X501
	2	TH5	(2nd digit) (1st digit)									1 2 3 4 CN41(WHT) CN40(WHT)
TH5																	SV(BLK)
	1	(GRN)					SW1					SW5					1	BLK	SV1
	2	TH6	ON								ON						3	BLK
TH6			OFF								OFF						X502
	1	(RED)															CH(BLU)
					1 2 3 4 5 6 7 8							1 2 3 4 5 6 7 8
		TH1															1
	2							SW2				SW3		SW6
TH1																	3
	1	(WHT)	ON									ON	ON
															F1		F2
	3	63HS	OFF									OFF	OFF		(6.3A)		(6.3A)
				1 2 3 4 5 6 7 8 910									1 2	1 2 3 4 5 6 7 8
	2	(WHT)															CNAC
			CN4												1	3
	1
63HS		(WHT)				CNDC(PNK)						CN2 (WHT)					(RED)
			2 1				3	1			1 2 3 4 5 6 7
												7

CN5 2 1	1 3 CNAC2		3	1 CNDC 6 5 4 3 2 1	7 6 5 4 3 2 1	< P.B.>
(RED)	(RED)	2	CN4	(PNK) CNAF (WHT)	CN2 (WHT)
LI	LO	1	(WHT)	IGBT
		THHS_A	CN3
		2
NI	NO	1	(WHT)	+	W	BLK
	EI		CN6		V	WHT
		2		-			MC
< N.F.>		1	(WHT)		U	RED	DCL4
		THHS_B	CN5
		2
		1	(RED)				DCL2
			SCR-N1	-	LED1
					SCR-S		1 2 3 4 5 6
		RS		+
			SCR-P1		SCR-R		P
		52C				+	CE
				+	SCR-P2		N1
					SCR-N2		N2

I

L2

DCL3

DCL1

L1

+

-

ACTM

NOTES: 1.	Refer to the wiring diagrams of the indoor units for details on wiring of each indoor unit.
2.	Symbols used in wiring diagram above are. :Terminal block,	:Connector, :Insertion tab.

3.Self-diagnosis function

The indoor and outdoor units can be diagnosed automatically using the self-diagnosis switch(SW1) and LED1,2 (LED indication)found on the multi-controller of the outdoor unit.

LED indication : Set all contacts of SW1 to OFF.

4.For the system utilizing R-converter units(PAC-SF29LB),the following functions are not available. SW3;TEST RUN SW5-1;AUTO CHANGE OVER CN3D;AUTO CHANGE OVER(external singnal)

5.The input for CN3D 1-2(AUTO CHANGE OVER EXTERNAL SIGNEL)is as follows. Short;heating Open;Cooling(It differs from Service ref.PUMY-P125YMA)

•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	-	-	-	Always lit
	operated

(Example)

When the compressor and SV1 are turned during cooling operation.

1

2 3

4 5

6 7

8

•When fault requiring inspection has occurred

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

19

PUMY-P125YMA

SYMBOL

NAME

SYMBOL

NAME

SYMBOL

NAME

SYMBOL

NAME

ACCT

CONNECTOR <CURRENT DETECTION>

C1,C2

FAN MOTOR CAPACITOR

SV1

SOLENOID VALVE <HOT GAS BYPASS>

TH2

THERMISTOR

CB1,CB2 SMOOTHING CAPACITOR

DM

DIODE MODULE

SW1

SWITCH <DISPLAY SELECTION>

<LOW PRESSURE SATURATED

TEMPERATURE DETECTION>

CNA

CONNECTOR <POWER SUPPLY>

DCL

REACTOR

SW2

SWITCH <FUNCTION SELECTION> TH5

THERMISTOR

CNR

CONNECTOR <DISCHARGE CIRCUIT, POWER SUPPLY> F.C

FAN CONTROL

SW3

SWITCH <TEST RUN>

<PIPE TEMPERATURE DETECTION

• JUDGING DEFROST>

CNS1

CONNECTOR <MULTI SYSTEM>

FUSE1

FUSE (6.3A)

SW4

SWITCH <MODEL SELECTION>

TH6

THERMISTOR

CNS2

CONNECTOR <CENTRALIZED CONTROL> FUSE2

FUSE (2A)

SW5

SWITCH <FUNCTION SELECTION>

<OUTDOOR TEMPERATURE DETECTION>

CN1

CONNECTOR <CONTROLLER DRIVE CONTROL> IPM

INTELLIGENT POWER MODULE

SWU1

SWITCH <UNIT ADDRESS SELECTION,1ST DIGIT>

X

RELAY

CN2

CONNECTOR <POWER SYNC SIGNAL, PROTECTION> LD1

DIGITAL INDICATION LED

SWU2

SWITCH <UNIT ADDRESS SELECTION,2ND DIGIT>

X71

RELAY <MAGNETIC CONTACTOR>

CN3

CONNECTOR <POWER SUPPLY 30V,12V,5V>

<OPERATION INSPECTION INDICATION>

SWU3

SWITCH <UNIT ADDRESS SELECTION,3RD DIGIT>

X72

RELAY <4-WAY VALVE>

CN4

CONNECTOR <INVERTER SIGNAL 5V> MC

COMPRESSOR <INNER THERMOSTAT>

TB1

TERMINAL BLOCK <POWER SUPPLY>

X73

RELAY <SOLENOID VALVE>

CN40

CONNECTOR <CENTRALIZED CONTROL POWER SUPPLY> MF1,MF2

FAN MOTOR <INNER THERMOSTAT>

TB3

TERMINAL BLOCK <TRANSMISSION>

ZNR

VARISTOR

CN41

CONNECTOR <FOR STORING JUMPER CONNECTOR> NF

NOISE FILTER

TB7

TERMINAL BLOCK <CENTRALIZED CONTROL>

21S4

4-WAY VALVE

CN51

CONNECTOR <COMPRESSOR DRIVE SIGNAL OUTPUT> RS1

RESISTOR <RUSH CURRENT PROTECT> THHS

THERMISTOR

49C

THERMAL SWITCH <COMPRESSOR>

CN3D

CONNECTOR <AUTO CHANGE OVER SIGNAL> RB1,RB2

RESISTOR <VOLTAGE BALANCE ADJUSTMENT>

<IPM RADIATOR PANEL

52C

MAGNETIC CONTACTOR

TEMPERATURE DETECTION>

CN3S

CONNECTOR <DEMAND SIGNAL>

RD1,RD2

RESISTOR <DISCHARGE>

TH1

THERMISTOR

63HS

HIGH PRESSURE SENSOR

C01,C02 SMOOTHING CAPACITOR

SLEV

EXPANSION VALVE

<DISCHARGE TEMPERATURE

<DISCHARGE PRESSURE DETECTION>

DETECTION>

C03

CAPACITOR <FILTER>

THHS TH6

TH5

TH2

TH1

63HS

SLEV

3

6

1 2 3 4

1 2 3 4

1 2 3 4 5

1 2 3

1 2 3

1 2

1 3

1 2

1 3

1 2

1 2 3

1 2 3 4 5 6

CN40

CN41

CN51

CN3D

CN3S

THHS TH6

TH5

TH2

TH1

63HS

SLEV

(WHT)

(WHT)

(WHT)

(WHT)

(RED)

(BLK) (WHT)(GRN)

(GRN)(WHT) (WHT)

(WHT)

LD1

ON

SW1

ON

SW2

1 CNS2

OFF

OFF

2 (YLW)

1 2 3 4 5 6 7 8

1 2 3 4 5 6 7 8 9 10

SW3

SW4

SW5

1 CNS1

9 0

0

9 0

ON

ON

ON

ACCT 2

1

9

1

1

OFF

OFF

OFF

(YLW) 1

2 (RED)

8

2

8

2

8

2

7

3

7

3

7

3

1 2

1 2 3 4

1 2 3 4 5 6 7 8

6

6

6

4

4

4

5

5

5

(RED)

(YLW)

(WHT)

(YLW)

SWU3

SWU2

SWU1

CN1

CN2

CN3

CN4

(3rd digit)(2nd digit)(1st digit)

6 3 2 1

6 5 4 3 2 1

7 6 3 2 1

7 6 5 4 3 2 1

<MULTI CONTROLLER BOARD>

MC

49C

4

6

5

7

U

W

V

TB3

<RESISTOR BOARD>

<POWER SUPPLY BOARD>

RED

WHT

BLK

YLW

YLW

BRN

M1

U

V

W

TO INDOOR UNIT

RD1

3 1 6 3 2 1

6 5 4 3 2 1

7 6 3 2 1

7 6 5 4 3 2 1

CONNECTING WIRES M2

P

N

49C

CN1

CN2

CN3

CN4

BRN

RD2

IPM

(YLW) (RED)

(YLW)

(WHT)

(YLW)

DC 30V (Non-polar)

X

(WHT)

C03

S

CNR

X

RB2 RB1

1

FUSE2

FUSE1

F.C

3

+ -

+ -

(2A)

(6.3A)

X71

X72

X73

5

		TB7	ORN
	FOR CENTRALIZED M1
	CONTROL	M2	ORN
	DC 30V (Non-polar)

S

RS1

(RED)	(WHT)
3 1 CNA 10 8 6 5 3 1 CNR
YLW YLW

6

8

10

6

N1	P
BLK	RED

C01

P1

BLU

C02

N	E
WHT	GRN

	(BLU)	(GRN)	(BLK) (WHT)		(WHT)
3 1 52C 3 1 21S4 3 1 SV1 3 1				MF1 3 1 MF2
YLW YLW	BLU BLU	BLK BLK	BLU WHT	BLU	WHT
			3 1	3 1

NO FUSE BREAKER TB1 25A

	L1	L1	RED
POWER SUPPLY L2		L2	WHT
3N~	L3	L3	BLK
380/220-415/240V	N	N	BLU

50Hz

GRN/YLW

GROUND

			DM
	3 1	NF	+
	CNA
	(RED)	RED
	LI1 LO1		~
	LI2 LO2	WHT	~
	LI3 LO3	BLK	~
	N		–
	E
	GRN

DCL

BLK

ZNR

BLU

52C

BLK

+

CB1

–

BLU

+

CB2

–

WHT

52C

21S4

SV1

BLU WHT	BLU WHT
MF1	MF2
RED ORN	RED ORN
C1	C2

NOTES : 1. Refer to the wiring diagrams of the indoor units for details on wiring of each indoor unit.

2. Symbols used in wiring diagram above are. : Terminal block, : Connector, :Insertion tab.

3.Self-diagnosis function

The indoor and outdoor units can be diagnosed automatically using the self-diagnosis switch (SW1) and LD1(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	-	-	-	Always lit
	operated

(Example)

When the compressor and SV1 are turned during cooling operation.

1

2 3

4 5

6 7

8

•When fault requiring inspection has occurred

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

20

PUMY-P125YMA1

SYMBOL	NAME	SYMBOL	NAME	SYMBOL	NAME		SYMBOL	NAME
ACCT	CONNECTOR <CURRENT DETECTION> C1,C2		FAN MOTOR CAPACITOR	SV1	SOLENOID VALVE <HOT GAS BYPASS> TH2			THERMISTOR
CB1,CB2	SMOOTHING CAPACITOR	DM	DIODE MODULE	SW1	SWITCH <DISPLAY SELECTION>			<LOW PRESSURE SATURATED TEMP. DETECTION>
CNA	CONNECTOR <POWER SUPPLY> DCL		REACTOR	SW2	SWITCH <FUNCTION SELECTION> TH5			THERMISTOR
CNR	CONNECTOR <DISCHARGE CIRCUIT,POWER SUPPLY>	F.C	FAN CONTROL	SW3	SWITCH <TEST RUN>			<PIPE TEMP. DETECTION • JUDGING DEFROST>
CNS1	CONNECTOR <MULTI SYSTEM> FUSE1		FUSE (6.3A)	SW4	SWITCH <MODEL SELECTION> TH6			THERMISTOR
CNS2	CONNECTOR <CENTRALIZED CONTROL> FUSE2		FUSE (2A)	SW5	SWITCH <FUNCTION SELECTION>			<OUTDOOR TEMP. DETECTION>
CN1	CONNECTOR <CONTROLLER DRIVE CONTROL> IPM		INTELLIGENT POWER MODULE		SW5-1 AUTO CHANGE OVER		X	RELAY
					OFF : disabled ON : enabled
CN2	CONNECTOR <POWER SYNC SIGNAL,PROTECTION>	LD1	DIGITAL INDICATION LED				X71	RELAY <MAGNETIC CONTACTOR>
CN3	CONNECTOR <POWER SUPPLY 30V,12V,5V>		<OPERATION INSPECTION INDICATION>	SWU1	SWITCH <UNIT ADDRESS SELECTION,1ST DIGIT> X72			RELAY <4-WAY VALVE>
CN4	CONNECTOR <INVERTER SIGNAL 5V>	MC	COMPRESSOR <INNER THERMOSTAT>	SWU2	SWITCH <UNIT ADDRESS SELECTION,2ND DIGIT> X73			RELAY <SOLENOID VALVE>
CN40	CONNECTOR <CENTRALIZED CONTROL POWER SUPPLY> MF1,MF2		FAN MOTOR <INNER THERMOSTAT>	SWU3	SWITCH <UNIT ADDRESS SELECTION,3RD DIGIT> ZNR			VARISTOR
CN41	CONNECTOR <FOR STORING JUMPER CONNECTOR>	NF	NOISE FILTER	TB1	TERMINAL BLOCK <POWER SUPPLY> 21S4			4-WAY VALVE
CN51	CONNECTOR <COMPRESSOR DRIVE SIGNAL OUTPUT>	RS1	RESISTOR <RUSH CURRENT PROTECT> TB3		TERMINAL BLOCK <TRANSMISSION> 49C			THERMAL SWITCH <COMPRESSOR>
					TERMINAL BLOCK <CENTRALIZED CONTROL> 52C
CN3D	CONNECTOR <AUTO CHANGE OVER SIGNAL>	RB1,RB2 RESISTOR <VOLTAGE BALANCE ADJUSTMENT> TB7						MAGNETIC CONTACTOR
CN3S	CONNECTOR <DEMAND SIGNAL> RD1,RD2 RESISTOR <DISCHARGE>			THHS	THERMISTOR		63HS	HIGH PRESSURE SENSOR
C01,C02	SMOOTHING CAPACITOR	SLEV	EXPANSION VALVE		<IPM RADIATOR PANEL TEMP. DETECTION>			<DISCHARGE PRESSURE DETECTION>
C03	CAPACITOR <FILTER>			TH1	THERMISTOR
					<DISCHARGE TEMP. DETECTION>
					THHS TH6	TH5		TH2 TH1 63HS
								SLEV

	TO INDOOR UNIT	TB3
		M1
	CONNECTING WIRES
	DC 30V (Non-polar)	M2
		S

FOR CENTRALIZED		TB7
CONTROL		M1
DC 30V (Non-polar)		M2
		S
NO FUSE BREAKER TB1
25A	L1	L1
POWER SUPPLY L2		L2
3N~	L3	L3
380/220-415/240V	N	N
50Hz

GROUND

BRN

BRN

ORN

ORN

RED

WHT

BLK

BLU

GRN/YLW

3

6

1 2 3 4

1 2 3 4

1 2 3 4 5

1 2 3

1 2 3

1 2

1 3

1 2

1 3

1 2

1 2 3

1 2 3 4 5 6

CN40

CN41

CN51

CN3D

CN3S

THHS TH6

TH5

TH2

TH1

63HS

SLEV

(WHT)

(WHT)

(WHT)

(WHT)

(WHT)

(BLK)

(WHT)

(GRN)

(GRN)

(WHT)

(WHT)

(WHT)

LD1

ON

SW1

ON

SW2

1

CNS2

OFF

OFF

2

(YLW)

1 2 3 4 5 6 7 8

1 2 3 4 5 6 7 8 9 10

SW3

SW4

SW5

ON

ON

ON

ACCT 2

1

CNS1

0

1

0

1

0

1

8

9

8

9

8

9

OFF

OFF

OFF

(YLW) 1

2

(RED)

2

2

2

3

3

3

1 2

1 2 3 4

1 2 3 4 5 6 7 8

7

7

7

6

5

4

6

5

4

6

5

4

(RED)

(YLW)

(WHT)

(YLW)

SWU3

SWU2

SWU1

CN1

CN2

CN3

CN4

(3rd digit)(2nd digit)(1st digit)

6 3 2 1

6 5 4 3 2 1

7 6 3 2 1

7 6 5 4 3 2 1

<MULTI CONTROLLER BOARD>

MC

49C

4

6

5

7

U

W

V

RED

WHT

BLK

YLW

YLW

<RESISTOR BOARD>

<POWER SUPPLY BOARD>

U

V

W

3 1

6 3 2 1

6 5 4 3 2 1

7 6 3 2 1

7 6 5 4 3 2 1

RD1

P

N

49C

CN1

CN2

CN3

CN4

RD2

IPM

(YLW)

(RED)

(YLW)

(WHT)

(YLW)

X

(WHT)

C03

CNR

X

RB2 RB1

1

FUSE2

FUSE1

F.C

3

+ -

+ -

(2A)

(6.3A)

X71

X72

X73

5

RS1

6

C01

C02

8

(RED)

(WHT)

10

(BLU)

(GRN)

(BLK)

(WHT)

(WHT)

3 1 CNA 10 8 6 5 3 1

CNR

N1

P

P1

N

E

3 1 52C

3 1 21S4 3 1 SV1 3 1 MF1 3 1 MF2

YLW

YLW

6

BLK

RED

BLU

WHT

GRN

YLW YLW

BLU BLU

BLK

BLK

BLU

WHT

BLU

WHT

3

1

3

1

3

1

DM

BLK

DCL

BLK

52C

21S4

SV1

BLU

WHT

BLU

WHT

NF

+

CNA

+

MF1

MF2

(RED)

RED

LI1

LO1

~

CB1

WHT

-

RED

ORN

RED

ORN

LI2

LO2

~

ZNR

BLU

LI3

LO3

BLK

~

+

C1

C2

CB2

N

–

BLU

-

E

WHT

52C

GRN

NOTES: 1.Refer to the wiring diagrams of the indoor units for details on wiring of each indoor unit.

2.Symbols used in wiring diagram above are.	:Terminal block,	:Connector, :Insertion tab.
3.Self-diagnosis function

The indoor and outdoor units can be diagnosed automatically using the self-diagnosis switch(SW1) and LD1(LED indication) found on the multi-controller of the outdoor unit.

LED indication : Set all contacts of SW1 to OFF.

4.For the system utilizing R-converter units(PAC-SF29LB), the following functions are not available. SW3 : TEST RUN SW5-1 : AUTO CHANGE OVER CN3D : AUTO CHANGE OVER(external singnal)

5.The input for CN3D 1-2(AUTO CHANGE OVER EXTERNAL SIGNEL)is as follows. Short : heating Open : Cooling(It differs from Service ref. PUMY-P125YMA)

• 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	-	-	-	Always lit
	operated

(Example)

When the compressor and SV1 are turned during cooling operation.

1

2 3

4 5

6 7

8

• When fault requiring inspection has occurred

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

21

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
			1
	For remote	controller
		1	2	34
					5
		0
		9			6
Outdoorunit	051		8	7
		0			5
		1	2	34
		0			5
		9			6
			8	7
		1	2	34
		9			6
			8	7
For centralized	management

Address SW

Address SW

Address SW

Address SW

Address SW

2

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

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

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

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

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

A transmission wire must be	connected to each refrigerant system (outdoor and indoor).
1

105
Remote	controller
154
Remote	controller
104
Remote	controller

102 controller

Remote

	101
	Remote controller
Set addresses:	Outdoor unit ..............051-100 Indoor unit .................001-050 Remote controller .....101-200
2

SW	0	2	34
				5
	1
	9			6
Address		8	7
		8	7
	1	2	34
	0			5
	9			6
	1
SW	0	2	34
				5
	1
Address	9			6
		8	7
		8	7
	1	2	34
	0			5
	9			6
	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			6
		8	7
		8	7
	1	2	34
	0			5
	9			6
	1
SW	0			5
	1	2	34
Address	9			6
		8	7	6
	1	2	34
				5
	0
	9
		8	7
	1
PUMY-P125VMA has no SW 3(3rd digit).	The address automatically become "100" if it is set as "01~50".
3

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

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

157		Address SW
Remote	controller
107		Address SW
Remote	controller

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

22

8-2. REFRIGERANT SYSTEM DIAGRAM PUMY-P125VMA

PUMY-P125YMA					(Refrigerant flow)
					Cooling
PUMY-P125YMA1					Heating	Thermistor TH6
		High-pressure sensor				(outdoor air
						temperature sensor)
		discharge pressure sensor
Service port		(63HS)
		4-way
	#50	valve
Strainer
			Oil
Flare			separator	Check valve
						Strainer
				(High pressure)
Check valve						(#100)
(low pressure)
		Strainer	Thermistor
		#100	TH1 (discharge			Thermistor TH5
			temperature			(piping temperature
			sensor)
		Capillary		Electromag-		monitoring and
Thermistor TH2		tube 1		netic valve		determination)
				(SV1)		Capillary
(Saturation temperature
					Outdoor heat exchanger	tube 3
of suction pressure)
Capillary			Compressor
tube 2
		Strainer	(MC)		Thermistor THHS
		Accumulator			(Radiator panel
					temperature sensor)
				Capillary
					W Only PUMY-P125VMA
	Expansion valve (LEV(A), SLEV)			tube 4
Flare					Thermistor THHS-A
				Dryer	Thermistor THHS-B
Strainer		Overcooling heat exchanger
#100
		Strainer
Service port		#100

Outdoor unit

Refrigerant Piping Specifications (dimensions of flared connector)

Capacity		Item	Liquid piping	Gas piping
	20 , 25	, 32 , 40	{6.35 <1/4”>	{12.7 <1/2”>
Indoor unit	50 , 63 , 71, 80		{9.52 <3/8”>	{15.88 <5/8”>
	100	, 125	{9.52 <3/8”>	{19.05 <3/4”>
Outdoor unit	125		{9.52 <3/8”>	{19.05 <3/4”>

PUMY-P125VMA PUMY-P125YMA PUMY-P125YMA1

Capillary tube 1	Capillary tube 2	Capillary tube 3	Capillary tube 4
(for return of oil from	(for Evaporating	(for maintaining equilibrium	(for SV1)
oil separator)	temperature detection)	between upper and lower coils)
{2.5 O {0.6 O L500	{2.5 O {0.6 O L500	({4 O {3.0 O L200) O 2	{4 O {2.4 O L360

Concerning the Compressor

This system has a scroll compressor. This compressor uses a low pressure shell that typically has a temperature in the range 30-80°C.

In addition, compressor wiring should be in the direction of rotation to the right. Wire colors are red (U), white(V), black (W), yellow and yellow (thermal switch).

23

8-3. SYSTEM CONTROL

8-3-1. Operating a Single Refrigerant System

When operating either alone or as part of a group, a M-NET remote controller (NR) may be used to control a single

refrigerant system that does not overlap with any other system.

<Example of system arrangement>

Using a M-NET remote controller (NR)

Address setting must be performed.

The NR wire and indoor and outdoor transmission wires must be a non-polar two wire cable.

One NR may be connected to a maximum of 16 indoor unit.

Two NR units may be used to perform control tasks (the second one pressed will have priority if two are pressed simultaneously).

For the system utilizing R-Converter units (PAC-SF29LB), the following systems are not available. Group operation system, centralized controller, group remote controller, etc. (See the installation manual of R-Converter units.)

Outdoor unit

Indoor unit

For indoor-outdoor transmission wire

NR

Indoor unit

NR

Indoor unit	Indoor unit
NR	Remote controller
	network

Group operation (maximum 16 indoor units)

indoor-outdoor trnasmission cable

	Remote
Indoor unit	control wire
NR	NR

2 remote controllers

If the user plans to install multiple refrigerant systems and a centralized controller in the future, it is strongly suggested that a NR be used.

24

8-3-2. System Controller (SC) to Perform Centralized Control

<Example of System Arrangement>

The following diagram shows the use of system controller (SC) to control a system that includes the multiple outdoor unit.

Outdoor

unit

Transmission wire for centralized control

Outdoor

unit

For transmission

wire Power supply installation

PAC-SC33KUA

PAC-SC34KUA

<Room A>

Indoor unit

A

<Room D>

Indoor unit

A

Indoor • outdoor transmission wire (Shielded wire)

<Room B>
Indoor unit	Indoor unit
	A Remote control
	wire

<Room C>
Indoor unit	Indoor unit
	A
Remote controller network

Indoor • outdoor transmission wire (Shielded wire)

<Room E>
Indoor unit	Indoor unit	Indoor unit	Indoor unit
	A		A

System controller SC: Centralized controller, linked system control board, group remote controller, etc.

A : M-NET or MA remote controller

(Coexistence of M-NET remote controller and MA remote controller is not admitted in the same system.)

Note 1) The NR, SC, indoor and outdoor unit all require address settings.

Indoor unit	Linked settings must be made within a group.	1	~ 50
Outdoor unit	The lowest address of an indoor unit within a refrigerant system is +50.	51	~ 100 w
M-NET R/C (Main)	The lowest address of an indoor unit within a group is +100.	101 ~ 150
M-NET R/C (Sub)	The address of the main remote controller is +50.	151 ~ 200
SC		0 or 201 ~ 250
MA Remote controller	Unnecessary address setting (Necessary main/sub setting)		—

wThe address automatically becomes “100” if it is set as “01~50”. (PUMY-P125VMA)

2)Indoor unit that may be connected with an SC are shown as follows.

Centralized controller	50 group /50 units
Multi-unit controller board	24 group /50 units
Group controller	8 group /16 units

3)There may be a maximum of two controllers when a group has 16 indoor units or less.

4)The transmission wire must have a power supply when an SC is used. Please connect the power supply for the transmission wire to the centralized controller transmission wire.

SC with 2 units or less	Power supply for transmission wire PAC-SC33KU
SC with 3 to 5 units	Power supply for transmission wire PAC-SC34KU

5)Use a shielded wire (at least 1.25mm2)for the indoor, outdoor, and centralized controller transmission wires. In addition, all shielded wires in a system must be grounded at one point. If the length of the remote control wire exceeds 10m, use an insulated wire for the extra portion.

25

8-3-3. 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

		L1				L2
		OC
				IC			IC
	(051)
				(001)		(002)
TB3		TB7	TB5		TB15	TB5		TB15
M1 M2S		M1 M2S	M1 M2S		1 2	M1 M2S		1 2
		L3
		1				r2
		r
• One remote controller for each						TB6
indoor unit.
			TB6			(102)
• Inside ( ) Address: There is no need (101)						NR
for setting the 100 position on the			NR
remote controller.
2. Operation using two remote controllers
OC
			IC			IC
(051)
			(001)			(002)
TB3	TB7		TB5	TB15		TB5	TB15
M1 M2S	M1 M2S		M1 M2S	1	2	M1 M2S	1	2

					TB6	TB6	TB6		TB6
	• Using two remote controllers				(101)	(151)	(102)		(152)
					NR	NR	NR		NR
	for each indoor unit.
					Main	Sub	Main		Sub
	3. Group operation
			OC			Main			Sub
					IC			IC
		(051)
					(001)			(002)
		TB3	TB7		TB5	TB15		TB5	TB15
		M1 M2S	M1 M2S		M1 M2 S	1 2		M1M2 S	1 2

	TB6
	(101)
• Multiple indoor units operated	NR
together by one remote
controller

Combinations of 1through 3 above are possible.

Wiring Method and Address Setting

a.Use feed wiring to connect terminals M1 and M2 on 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 non-polarized two wire.

b.Connect terminals M1 and M2 on transmission cable terminal block (TB5) for each indoor unit with the terminal block (TB6) for the remote controller (NR).

c.Set the address setting switch as shown below.

	Unit	Range	Setting Method
	Indoor unit (IC)	001 to 050	—
	Outdoor unit		Use the most recent
		051 to 100	address of all the indoor
	(OC)
			unit plus 50.
	Remote	101 to 150	Indoor unit address plus
	controller (NR)		100.

a.Same as above.

b.Same as above.

c.Set address switch as shown below.

	Unit	Range	Setting Method
	Indoor Unit (IC)	001 to 050	—
	Outdoor unit		Use the most recent
		051 to 100	address of all the indoor
	(OC)
			units plus 50.
	Main Remote	101 to 150	Indoor unit address plus
	Controller (NR)		100.
	Sub Remote	151 to 200	Indoor unit address plus
	Controller (NR)		150.

a.Same as above.

b.Connect terminals M1 and M2 on transmission cable terminal block (TB5) of the IC main unit with the most most recent address within the same indoor unit (IC) group to terminal block (TB6) on the remote controller.

c.Set the address setting switch as shown below.

	Unit	Range	Setting Method
	IC (Main)	001 to 050	Use the most recent address within
			the same group of indoor units.
			Use an address, other than that of
	IC (Sub)	001 to 050	the IC (Main) from among the units
			within the same group of indoor
			units. This must be in sequence with
			the IC (Main).
	Outdoor Unit	051 to 100	Use the most recent address of all
			the indoor units plus 50.
	Main Remote	101 to 150	Set at an IC (Main) address within
	Controller		the same group plus 100.
	Sub Remote	151 to 200	Set at an IC (Main) address within
	Controller		the same group plus 150.

d. Use the indoor unit (IC) within the group with the most functions as the IC (Main) unit.

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 connect to 1-8 IC units
	M-NET remote	NR	Maximum two NR for one indoor unit, Maximum 16 NR for one OC
	controller

	Permissible Lengths			Prohibited items
	Longest transmission cable length	• M-NET remote controller(NR) and MA remote controller(MA) cannot be used together.
	(1.25 mm2 )
		• Do not connect anything with TB15 of indoor unit(IC).
	L1 + L2, L2 + L3, L3 + L1 [ 200m
	Remote controller cable length
	1. If 0.5 to 0.75 mm2	OC
	R1, R2 [10m			IC		IC
	2. If the length exceeds 10 meters,	(051)
				(001)		(002)
	the exceeding section should
		TB3	TB7	TB5	TB15	TB5	TB15
	be 1.25 mm2 and that section	M1 M2S	M1 M2S	M1 M2 S	1 2	M1 M2S	1 2
	should be a value within the
	total extension length of the
	transmission cable and
	maximum transmission cable			TB6
	length. (L3)			(101)

					NR					MA
Same as above
OC
			IC				IC
(051)										• Use the indoor unit(IC)
			(001)				(002)			address plus 150 as
TB3	TB7		TB5	TB15		TB5		TB15		the sub remote controller
M1 M2S	M1 M2S	M1 M2 S		1 2		M1 M2S		1 2
										address. In this case, it
										should be 152.
										• Three or more remote
		TB6		TB6	TB6			TB6	TB6	controller (NR) cannot
		(101)	(151)		(102)			(103)	(104)	be connected to one
		NR		NR		NR		NR	NR	indoor unit.
		Main		Sub	Main			Sub
Same as above					Main			Sub
		OC
					IC			IC
	(051)
					(001)			(002)
	TB3	TB7			TB5	TB15		TB5	TB15
	M1 M2S	M1 M2S			M1 M2 S	1 2		M1 M2 S	1 2
										• The remote controller
										address is the indoor
										unit main address plus
					TB6					100. In this case, it
										should be 101.
				(102)
					NR

27

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

Examples of Transmission Cable Wiring

Wiring Method Address Settings

L9

( ) Address

L1

L2

L3

L4

Between

terminal blocks

OC

Group 1

Group 3

Group 5

CN40

IC

IC

IC

IC

(051)

(001)

(004)

(005)

(006)

TB3

TB5

TB15

TB5

TB15

TB5

TB15

TB5

TB15

M1 M2S

M1 M2S

M1 M2S

1

2

M1 M2S

1

2

M1 M2S

1

2

M1 M2S

1

2

TB7

R1

R2

R3

Shielded wire

TB6

TB6

TB6

(101)

(105)

(155)

L5

NR

L6

L7

NR

NR

Sub remote

OC

controller

IC

IC

IC

(052)

(002)

(003)

(007)

TB3

TB5

TB15

TB5

TB15

TB5

TB15

M1 M2S

M1 M2S

M1 M2S

1

2

M1 M2S

1

2

M1 M2S

1

2

TB7

L8

R4

TB6

(103)

NR

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 (TB6) on the remote controller (NR).

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

e.Use the grounded wire to connect the S-terminal on the transmission terminal of the outdoor unit (OC) and the grounded terminal for the electrical components box.

f.On one outdoor unit only, change the jumper connector on the control panel from CN41 to CN40.

g.Connect the terminal S on the terminal block for central control (TB7) for the outdoor unit (OC) for the unit into which the jumper connector was inserted into CN40 in Step above to the ground terminal ; in the electrical component box.

h.Set the address setting switch as follows.

	Unit	Range	Setting Method
	IC (Main)	001 to 050	Use the most recent address within the same group of indoor units.
	IC (Sub)	001 to 050	Use an address, other than that of the IC (Main) from among the units within
			the same group of indoor units. This must be in sequence with the IC (Main).
	Outdoor Unit	051 to 100	Use the most recent address of all the indoor units plus 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.

i.The group setting operations among the multiple indoor units is done by the remote controller (NR) after the electrical power has been turned on.

28