Mitsubishi PQRY-P200YMF-C, PQRY-P250YMF-C, CMB-P104, CMB-P105, CMB-P106 Service Handbook

AIR CONDITIONERS CITY MULTI

Models PQRY-P200YMF-C, P250YMF-C

CMB-P104, P105, P106, P108, P1010, P1013, P1016V-E

Service Handbook

Contents

1 PRECAUTIONS FOR DEVICES THAT USE R407C REFRIGERANT ....			3
	[1] Storage of Piping Material .................................................................		4
	[2]	Piping Machining ...............................................................................	5
	[3] Necessary Apparatus and Materials and Notes on Their Handling ..		6
	[4]	Brazing ..............................................................................................	7
	[5]	Airtightness Test ................................................................................	8
	[6]	Vacuuming ........................................................................................	8
	[7]	Charging of Refrigerant .....................................................................	9
	[8]	Dryer .................................................................................................	9
2	COMPONENT OF EQUIPMENT ...........................................................		10
	[1]	Appearance of Components ...........................................................	10
	[2] Refrigerant Circuit Diagram and Thermal Sensor ...........................		17
	[3]	Electrical Wiring Diagram ................................................................	19
	[4]	Standard Operation Data ................................................................	27
	[5] Function of Dip SW and Rotary SW ................................................		29
	[6]	External Input/Output Specifications ...............................................	32
3	TEST RUN .............................................................................................		33
	[1]	Before Test Run ..............................................................................	33
	[2]	Address setting ...............................................................................	37
	[3]	Test Run Method .............................................................................	42

4GROUPING REGISTRATION OF INDOOR UNITS WITH REMOTE

	CONTROLLER .......................................................................................	43
5	CONTROL ..............................................................................................	49
	[1] Control of Heat Source Unit ............................................................	49
	[2] Control box cooling system .............................................................	53
	[3] Control of BC Controller ..................................................................	54
	[4] Operation Flow Chart ......................................................................	55
	[5] List of Major Component Functions ................................................	61
	[6] Resistance of Temperature Sensor .................................................	64
6	REFRIGERANT AMOUNT ADJUSTMENT ............................................	65
	[1] Refrigerant Amount and Operating Characteristics ........................	65
	[2] Adjustment and Judgement of Refrigerant Amount ........................	65
7	TROUBLESHOOTING ...........................................................................	70
	[1] Principal Parts .................................................................................	70
	[2] BC Controller Disassembly Procedure ...........................................	98
	[3] Self-diagnosis and Countermeasures Depending on the
	Check Code Displayed .................................................................	104
	[4] LED Monitor Display .....................................................................	127

8PREPARATION, REPAIRS AND REFRIGERANT REFILLING

WHEN REPAIRING LEAKS .................................................................	137
[1] Location of leaks: Extension piping or indoor units (when cooling) ...	137
[2] Location of leaks: Heat Source Unit (Cooling mode) ....................	137
[3] Location of Leaks: Extension Piping or Indoor Units
(Heating mode) .............................................................................	138
[4] Location of Leaks: Heat Source Unit (when Heating) ...................	138
9 CHECK THE COMPOSITION OF THE REFRIGERANT .....................	139

0DIFFERENCES BETWEEN THE PREVIOUS REFRIGERANT

AND THE NEW REFRIGERANT .........................................................		141
[1]	Chemical Characteristics ..............................................................	141
[2]	Chances in Composition ...............................................................	141
[3]	Pressure Characteristics ...............................................................	142
A REFRIGERATOR OIL ..........................................................................		143
[1] Refrigerator Oil with HFC Based Refrigerants ..............................		143
[2]	Influence of Contaminants ............................................................	143

–1–

Safety precautions

Before installation and electric work

▲ Before installing the unit, make sure you read all the “Safety precautions”.

▲ The “Safety precautions” provide very important points regarding safety. Make sure you follow them.

▲ This equipment may not be applicable to

EN61000-3-2: 1995 and EN61000-3-3: 1995.

▲ This equipment may have an adverse effect on equipment on the same electrical supply system. Please report to or take consent by the supply

▲ authority before connection to the system.

Symbols used in the text

Warning:

Describes precautions that should be observed to prevent danger of injury or death to the user.

Caution:

Describes precautions that should be observed to prevent damage to the unit.

Symbols used in the illustrations

: Indicates an action that must be avoided.

: Indicates that important instructions must be followed. : Indicates a part which must be grounded.

: Indicates that caution should be taken with rotating parts. (This symbol is displayed on the main unit label.) <Color: Yellow>

: Indicates that the main switch must be turned off before servicing. (This symbol is displayed on the main unit label.) <Color: Blue>

: Beware of electric shock (This symbol is displayed on the main unit label.) <Color: Yellow>

: Beware of hot surface (This symbol is displayed on the main unit label.) <Color: Yellow>

ELV : Please pay attention to electric shock fully because this is not Safety Extra Low-Voltage (SELV) circuit. And at servicing, please shut down the power supply for both of Indoor Unit and Heat Source Unit.

Warning:

Carefully read the labels affixed to the main unit.

Warning:

•Ask the dealer or an authorized technician to install the air conditioner.

-Improper installation by the user may result in water leakage, electric shock, or fire.

•Install the air unit at a place that can withstand its weight.

-Inadequate strength may cause the unit to fall down, resulting

in injuries.

•Use the specified cables for wiring. Make the connections securely so that the outside force of the cable is not applied to the terminals.

-Inadequate connection and fastening may generate heat and cause a fire.

•Prepare for typhoons and other strong winds and earthquakes and install the unit at the specified place.

-Improper installation may cause the unit to topple and result in injury.

•Always use an air cleaner, humidifier, electric heater, and other accessories specified by Mitsubishi Electric.

-Ask an authorized technician to install the accessories. Improper installation by the user may result in water leakage, electric shock, or fire.

•Never repair the unit. If the air conditioner must be repaired, consult the dealer.

-If the unit is repaired improperly, water leakage, electric shock, or fire may result.

•Do not touch the heat exchanger fins.

-Improper handling may result in injury.

•If refrigerant gas leaks during installation work, ventilate the room.

-If the refrigerant gas comes into contact with a flame, poisonous gases will be released.

•Install the air conditioner according to this Installation Manual.

-If the unit is installed improperly, water leakage, electric shock, or fire may result.

•Have all electric work done by a licensed electrician according to “Electric Facility Engineering Standard” and “Interior Wire Regulations”and the instructions given in this manual and always use a special circuit.

-If the power source capacity is inadequate or electric work is performed improperly, electric shock and fire may result.

•Securely install the cover of control box and the panel.

-If the cover and panel are not installed properly, dust or water may enter the heat source unit and fire or electric shock may result.

•When installing and moving the air conditioner to another site, do not charge the it with a refrigerant different from the refrigerant (R407C) specified on the unit.

-If a different refrigerant or air is mixed with the original refrigerant, the refrigerant cycle may malfunction and the unit may be damaged.

•If the air conditioner is installed in a small room, measures must be taken to prevent the refrigerant concentration from exceeding the safety limit even if the refrigerant should leak.

-Consult the dealer regarding the appropriate measures to prevent the safety limit from being exceeded. Should the refrigerant leak and cause the safety limit to be exceeded, hazards due to lack of oxygen in the room could result.

•When moving and reinstalling the air conditioner, consult the dealer or an authorized technician.

-If the air conditioner is installed improperly, water leakage, electric shock, or fire may result.

•After completing installation work, make sure that refrigerant gas is not leaking.

-If the refrigerant gas leaks and is exposed to a fan heater, stove, oven, or other heat source, it may generate noxious gases.

•Do not reconstruct or change the settings of the protection devices.

-If the pressure switch, thermal switch, or other protection device is shorted and operated forcibly, or parts other than those specified by Mitsubishi Electric are used, fire or explosion may result.

•To dispose of this product, consult your dealer.

•The installer and system specialist shall secure safety against leakage according to local regulation or standards.

-Following standards may be applicable if local regulation are not available.

•Pay a special attention to the place, such as a basement, etc. where refrigeration gas can stay, since refrigerant is heavier than the air.

–2–

1 PRECAUTIONS FOR DEVICES THAT USE R407C REFRIGERANT

Caution

Do not use the existing refrigerant piping.

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

Use refrigerant piping made of **C1220T phosphorus deoxidized copper as specified in the *JIS H3300 “Copper and copper alloy seamless pipes and tubes”. In addition, be sure that the inner and outer surfaces of the pipes are clean and free of hazardous sulphur, oxides, dust/dirt, shaving particles, oils, moisture, or any other contaminant.

•Contaminants on the inside of the refrigerant piping may cause the refrigerant residual oil to deteriorate.

*JIS: Japanese Industrial Standard

**: Comparable to CU-DHP (CUPROCLIMA), Cu-bl (AFNOR), C12200 (ASTN), SF-Cu (DIN)

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 alkylbenzene (small

amount) as the refrigerator oil to coat flares and

flange connections.

•The refrigerator oil will degrade if it is mixed with a large amount of mineral oil.

Use liquid refrigerant to seal the system.

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

Use a vacuum pump with a reverse flow check valve.

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

Do not use the following tools that have been used with conventional refrigerants.

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

•If the conventional refrigerant and refrigerator oil are mixed in the R407C, the refrigerant may deteriorated.

•If water is mixed in the R407C, the refrigerator oil may deteriorate.

•Since R407C does not contain any chlorine, gas leak detectors for conventional refrigerants 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.

If the refrigerant leaks, recover the refrigerant in the refrigerant cycle, then recharge the cycle with the specified amount of the liquid refrigerant indicated on the air conditioner.

•Since R407C is a nonazeotropic refrigerant, if additionally charged when the refrigerant leaked, the composition of the refrigerant in the refrigerant cycle will change and result in a drop in performance or abnormal stopping.

Do not use a refrigerant other than R407C.

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

–3–

[1] Storage of Piping Material

(1) Storage location

Store the pipes to be used indoors. (Warehouse at site or owner’s warehouse)

Storing them outdoors may cause dirt, waste, or water to infiltrate.

(2) Pipe sealing before storage

Both ends of the pipes should be sealed until immediately before brazing.

Wrap elbows and T’s in plastic bags for storage.

*The new refrigerator oil is 10 times more hygroscopic than the conventional refrigerator oil (such as Suniso). Water infiltration in the refrigerant circuit may deteriorate the oil or cause a compressor failure. Piping materials must be stored with more care than with the conventional refrigerant pipes.

–4–

[2] Piping Machining

Use ester oil, ether oil or alkylbenzene (small amount) as the refrigerator oil to coat flares and flange connections.

Use only the necessary minimum quantity of oil !

Reason :

1. The refrigerator oil used for the equipment is highly hygroscopic and may introduce water inside.

Notes :

•Introducing a great quantity of mineral oil into the refrigerant circuit may also cause a compressor failure.

•Do not use oils other than ester oil, ether oil or alkylbenzene.

–5–

[3] Necessary Apparatus and Materials and Notes on Their Handling

The following tools should be marked as dedicated tools for R407C.

<<Comparison of apparatus and materials used for R407C and for R22>>

Apparatus Used	Use	R22	R407C
Gauge manifold	Evacuating, refrigerant filling	Current product
Charging hose	Operation check	Current product
Charging cylinder	Refrigerant charging	Current product	Do not use.
Gas leakage detector	Gas leakage check	Current product	Shared with R134a
Refrigerant collector	Refrigerant collection	R22	For R407C use only
Refrigerant cylinder	Refrigerant filling	R22	Identification of dedi-
			cated use for R407C
			: Record refrigerant
			name and put brown
			belt on upper part of
			cylinder.
Vacuum pump	Vacuum drying	Current product	Can be used by
			attaching an adapter
			with a check valve.
Vacuum pump with a check valve		Current product
Flare tool	Flaring of pipes	Current product
Bender	Bending of pipes	Current product
Application oil	Applied to flared parts	Current product	Ester oil or Ether oil or
			Alkybenzene (Small
			amount)
Torque wrench	Tightening of flare nuts	Current product
Pipe cutter	Cutting of pipes	Current product
Welder and nitrogen cylinder	Welding of pipes	Current product
Refrigerant charging meter	Refrigerant charging	Current product
Vacuum gauge	Checking the vacuum degree	Current product
Symbols : To be used for R407C only.		Can also be used for conventional refrigerants.

Tools for R407C must be handled with more care than those for conventional refrigerants. They must not come into contact with any water or dirt.

–6–

[4] Brazing

No changes from the conventional method, but special care is required so that foreign matter (ie. oxide scale, water, dirt, etc.) does not enter the refrigerant circuit.

Example : Inner state of brazed section

When non-oxide brazing was not used

When non-oxide brazing was used

Items to be strictly observed :

1.Do not conduct refrigerant piping work outdoors on a rainy day.

2.Apply non-oxide brazing.

3.Use a brazing material (Bcup-3) which requires no flux when brazing between copper pipes or between a copper pipe and copper coupling.

4.If installed refrigerant pipes are not immediately connected to the equipment, then braze and seal both ends of them.

Reasons :

1.The new refrigerant oil is 10 times more hygroscopic than the conventional oil. The probability of a machine failure if water infiltrates is higher than with conventional refrigerant oil.

2.A flux generally contains chlorine. A residual flux in the refrigerant circuit may generate sludge.

Note :

•Commercially available antioxidants may have adverse effects on the equipment due to its residue, etc. When applying non-oxide brazing, use nitrogen.

–7–

[5] Airtightness Test

No changes from the conventional method. Note that a refrigerant leakage detector for R22 cannot detect R407C

leakage.

Halide torch

R22 leakage detector

Items to be strictly observed :

1.Pressurize the equipment with nitrogen up to the design pressure and then judge the equipment’s airtightness, taking temperature variations into account.

2.When investigating leakage locations using a refrigerant, be sure to use R407C.

3.Ensure that R407C is in a liquid state when charging.

Reasons :

1.Use of oxygen as the pressurized gas may cause an explosion.

2.Charging with R407C gas will lead the composition of the remaining refrigerant in the cylinder to change and this

refrigerant can then not be used.

Note :

•A leakage detector for R407C is sold commercially and it should be purchased.

[6]Vacuuming

1.Vacuum pump with check valve

A vacuum pump with a check valve is required to prevent the vacuum pump oil from flowing back into the refrigerant circuit when the vacuum pump power is turned off (power failure).

It is also possible to attach a check valve to the actual vacuum pump afterwards.

2.Standard degree of vacuum for the vacuum pump

Use a pump which reaches 0.5 Torr (500 MICRON) or below after 5 minutes of operation.

In addition, be sure to use a vacuum pump that has been properly maintained and oiled using the specified oil. If the vacuum pump is not properly maintained, the degree of vacuum may be too low.

3.Required accuracy of the vacuum gauge

Use a vacuum gauge that can measure up to 5 Torr. Do not use a general gauge manifold since it cannot measure a vacuum of 5 Torr.

4.Evacuating time

•Evacuate the equipment for 1 hour after –755 mmHg (5 Torr) has been reached.

•After envacuating, leave the equipment for 1 hour and make sure the that vacuum is not lost.

5.Operating procedure when the vacuum pump is stopped

In order to prevent a backflow of the vacuum pump oil, open the relief valve on the vacuum pump side or loosen the charge hose to drawn in air before stopping operation.

The same operating procedure should be used when using a vacuum pump with a check valve.

–8–

[7] Charging of Refrigerant

R407C must be in a liquid state when charging, because it is a non-azeotropic refrigerant.

For a cylinder with a syphon attached

For a cylinder without a syphon attached

CylinCylin- der

der

brown

Valve	Valve

Liquid

Liquid

Reasons :

1.R407C is a mixture of 3 refrigerants, each with a different evaporation temperature. Therefore, if the equipment is charged with R407C gas, then the refrigerant whose evaporation temperature is closest to the outside temperature is charged first while the rest of refrigerants remain in the cylinder.

Note :

•In the case of a cylinder with a syphon, liquid R407C is charged without turning the cylinder up side down. Check the type of cylinder before charging.

[8]Dryer

1.Replace the dryer when the refrigerant circuit is opened (Ex. Change the compressor, full gas leakage). Be sure to replace the dryer with a CITY MULTI Series WR2 (PQRY) (For use with R407C).

If any other product is used, the unit will be damaged.

2.Opening the refrigerant circuit after changing to a new dryer is less than 1 hour. The replacement of the dryer should be the last operation performed.

–9–

2COMPONENT OF EQUIPMENT

[1]Appearance of Components

Heat source unit

Heatexchanger

4-way Valve

SV

Block

Compressor

Control Box

CV

Block

Drier

Accumulator

–10–

Control Box		INV board
Front View

Transformer (T01)

RELAY board

MAIN board

	Terminal block TB8	Terminal block TB1A	Terminal block	Terminal block TB7
	UNIT ON/OFF,
		Power Source	TB3 Transmission	Transmission (Centralized Control)
	Pump inter lock

Inner View	Cooling fan	DC reactor	Choke coil
	(MF1)	(DCL)	(L2)

Fuse (F3)

Intelligent Power

Module (IPM)

	Capacitor
G/A board	(C2, C3)

Noise

Filter

Diode stack (DS)

Fuse	Magnetic Contactor (52C)	SNB board
(F5, F6)		(Back Side)

–11–

MAIN board

CNTR	CNVCC4	CNS1 CNS2
	Power source
	for control (5V)

CN20

SW4 SW3

SWU2 SWU1

CN40 CN41

CNVCC3

Power source for control 1-2 30 V, 1-3 30 V, 4-6 12 V, 5-6 5 V

CN51

CN3D

LD1

Service LED

SW2 SW1

–12–

INV board

CNR

CN52C Control for 52C

CNFAN Control for MF1

CNAC2 Power source 1 L2

3 N

5 G

CNVDC

1-4

DC-560V

CN15V2 Power supply for IPM control

CNVCC4

Power supply (5V)

CNL2

Choke coil

CNVCC2 Power supply

1-2 30V, 1-3 30V

4-6 12V, 5-6 5V

CNDR2

Out put to

G/A board

CNTH

SW1	CNRS2	CNACCT
	Serial transmission
	to MAIN board

–13–

RELAY board

SNB board

–14–

BC controller

BC board

CNTR

CN02

M-NET transmission

CN03

SW4

SW2

SW1

CN12

Power supply

1 EARTH

3 N

5 L

–15–

RELAY 10 board

RELAY 4 board

–16–

[2] Refrigerant Circuit Diagram and Thermal Sensor

Heat source unit

CV7

ST8	SV72
CV11	TH6

			Distributor	SV3	SV5			heatWaterexchanger	coil(Doubletype)
				SV6
				SV4
		Solenoid Valves	Block							Water	Circulating
valve							CJ2
4way			Highpressure sensor							Accumulator
	ST2	SP1		ST5	SV73	Oil separator CP1	ST6 TH1		Comp		TH10
							SV2
							SV1
							CV1	High pressure	Switch

–17–

Strainer	Checkvalve	Serviceport		Solenoidvalve	Thermalsensor	Capillary	Linervalveexpansion	Ballvalve
:	:	:		:	:	:	:	:
ST	CV	SP	SV		TH	CP	LEV	BV

BV1		BV2
ST1
CV3
CV2
CV5	CV6	Orifice
CV4

SV71
ST7d	CV10
ST7c	CV9
ST7b	CV8

	ST7a			Block
SLEV	ST4 Exchanger	THINV	pressure sensor	Drier Check Valves
	Heat	TH2	Low
	Air		LEV2	TH9
	CP4

BC controller, Indoor unit

		Indoor	units

TH23

TH21

TH22

LEV

SVC	SVA	SVB
Valves Block
		separator	TH11	PS1	LEV1	PS3
		Gas/liquid	TH12

Solenoidvalve Orifice Capillary Checkvalve Thermalsensor Strainer Serviceport	Accumulator
: : : : : : : :
SP	ACC

CMB-P104V-E

BC controller

TH15

LEV3

TH16

–18–

–19–

<ELECTRICAL WIRING DIAGRAM>
	Inverter
no fuse breaker	Controller Box
PQRY-P200YMF-C	30A
PQRY-P250YMF-C	50A

		Terminal
		Block
		TB1A
	L1	L1
Power source	L2	L2
3N~
380/400/415V
50/60Hz	L3	L3
	N	N
			Green/
		PE	Yellow
		PE	BOX BODY
		TB3
Connect to		M1
Indoor and		M2
remote
controller
		M1
		M2
		S
		TB7	AC4
		(to CNAC4)
			AC1
			CH1
		Crank case heater
		(Compressor)

SV1

SV2

21S4

SV4 SV3

SV6 SV5

63H High pressure switch

26W Freeze protect switch

MC1

Motor

U

V W

(Compressor)

Red

White

Black

F5

SNB board

FB1

600VAC

ACCT

8A F

F6

L1

-W

600VAC

ACCT

8A F

L2

-U

L3

EARTH

BOX BODY

Noise

Terminal

Diode

NF

Filter

Block

stack

IPM

TB1B

DS

R1

R5

Red

L1

L1

Red

L1

Red

ZNR4

U

V

W

~

+

+

C2

C1

R2

P

White

L2

L2

White

L2

White

~

+

52C

C3

DCL

R3

Gate amp board

Black

L3

L3

Black

L3

Black

–

~

(G/A board)

Blue

N

N

Blue

N

Blue

N

BOX BODY

F3

250VAC 1A F

								CNTR1
								T01
CNAC3								CN20
(4P)	1	2	3	1 2	1	2	3	(3P)	2	3
								1
4	CNS2			CNS1				F1	CNTR
3		(3P)		(2P)					(3P)
								250VAC
2								2A F
1
3
2	CN32
1	(3P)			X01
3
2	CN33			X02
1	(3P)
6
5
4	CN34			X04
3	(6P)
2

1

X05

6
5
4	CN36
3	(6P)
2
1
6
5
4	CN37
3	(6P)
2
1

CN38

(3P)

1

2

3

5

4

3

2

1

CNRT1

(5P)

X06

X07

X08

X09

X10

detection circuit

detection circuit

Control circuit board (MAIN board)

Refer to the service handbook

about the switch operations.

CN12

CN09

CN06

CN03

CN02

CN01

CNH

CNL

CNLV1

CNLV2

(2P)

(2P)

(2P)

(3P)

(8P)

(2P)

(3P)

(3P)

(5P)

(5P)

1 2

1 2

1 2

1 2 3

1 2 3 4 5

6 7 8

1 2

1

2

3

1

2

3

1 2 3 4 5

1 2 3 4 5

Black

White

Red

Black

White Red

3

2

1

3

2

1

SLEV

LEV2

THINV

TH10

TH9

TH6

TH2

TH1

63HS

63LS

							CNE		CNDC1							CNDR1												CN15V1
							(2P)		(4P)							(9P)												(14P)
							1	2	1	2	3	4	1	2	3	4	5	6	7	8	9	1	2	3	4	5	6	7	8	9	10 11 12 13 14
																						FB2
							BOX BODY
		BOX BODY																		Brown	Orange	Brown			Orange		Yellow				Purple	Gray White
			Green		Blue		White		Red		Black												Red							Black
	1	1					CNAC2
	2	2	5	4	3				1	2	3	4	1	2	3	4	5	6	7	8	9	1	2	3	4	5	6	7	8	9	10 11 12 13 14
						2	1
CNRS3	3	3					(5P)		CNVDC							CNDR2												CN15V2
	4	4	CNRS2
(7P)	5	5	(7P)						(4P)							(9P)												(14P)

66

77

				F01
CNVCC4 1		1	CNVCC4	250VAC
(2P)	2	2	(2P)	2A F

	1	1		Power circuit board
	2	2
CNVCC3 3		3	CNVCC2	(INV board)
(6P)	4	4	(6P)

55

66

X10

	1		1
	2		2	X01
	3
		52C
CNX10			3
						CNTH	CNR	CNL2	CN30V
(3P)			CN52C		X02
			(3P)			(2P)	(3P)	(2P)	(2P)
				1	2 3 CNFAN 1 2		1 2 3	1 2	1 2
					(3P)
CN3D	23		DEMAND		MF1
(3P)	1
						THHS	R7	L2	R6
12V	1					BOX BODY
	2
	3
	4	4 : Compressor ON/OFF
	5	5 : SW3-3	OFF : water freeze signal
CN51

(5P)

ON

: trouble signal

1

CNACCT 2 (4P) 3

4

		(to CNAC3)
			AC4		AC1
		CNAC4						CN81
		(4P)	4	3	2	1	X21	(9P)
								9
							X22	8
								7
							X23	6
								5
								4		SV73	SV72	SV71
								3
		CNPW						2
								1
		(4P)
	4	4
CN63PW	3	3						CN83
(4P)	2	2						(7P)		TB8
	1	1							4			63PW
						detection		7				Pump interlock
								5	3
	6	6				circuit		3	2
	5	5						1	1	Unit ON/OFF
CNOUT1
	4	4	CNOUT2				X25
(6P)
	3	3		(6P)
	2	2
	1	1				RELAY board

C-P200·250YMF-PQRY •	Wiring Electrical [3]
	Diagram

PQRY-P200·250YMF-C	<Operationofself-diagnosisswitch(SW1)andLEDdisplay>
•

<LED display>

	FLAG8
RemarksSW1operation	FLAG5 FLAG6 FLAG7
(blinking)	FLAG4
lighting	FLAG3
DisplayatLED	FLAG1 FLAG2
Display

		Name
	Symbolexplanation>	Symbol
<
FLAG8 FLAG7 FLAG6		FLAG5

LD1					FLAG1 FLAG2 FLAG3 FLAG4
FLAG8alwayslights		atmicrocomputer		powerON
Always		lighting
	SV4
	SV3
	SV1 SV2					errorcodebyturns	1102
	21S4					and	51
Crankcase	heater					theaddress
During	compressor		run			Display
Relayoutput	display (Lighting)					Checkdisplay1	(Blinking)
						5678910	shipment)
					1234		(atfactory
		ON:1		OFF:0

DCreactor (Powerfactorimprovement)

CurrentSensor

Varistor

Magneticcontactor (Invertermaincircuit)

Fanmotor(Radiatorpanel)

4-wayvalve

Solenoidvalve(Discharge-suctionbypass)

Solenoidvalve

(Heatexchangercapacitycontrol)

Solenoidvalve

(Heatexchangercapacitycontrol)

Electronicexpansionvalve

(Heatexchangerforinverter)

Electronicexpansionvalve(Oilreturn)

Highpressuresensor

Lowpressuresensor

Chokecoil(Transmission)

Intelligentpowermodule

ThermistorDischargepipetemp.detect

Saturationevapo.temp.detect

OAtemp.detect

Highpressureliquidtemp.

Compressorshelltemp.

Outlettemp.detectof

heatexchangerforinverter

Radiatorpaneltemp.detect

Aux.relay

Ferritecore

Earthterminal

DCL

ACCT-U,W

ZNR4

52C

MF1

21S4

SV1,SV2

SV3~6

SV71~73

LEV2

SLEV

63HS

63LS

L2

IPM

TH1

TH2

TH6

TH9

TH10

THINV

THHS

X1~10

X21~25

FB1~2

THINV

TH2

TH9

63LS

INVERTER

CONTROLLER

BOX

SV71

ACCUMULATOR

63HS

SLEV

LEV2

SV72

	SSR
	SV73		LEDdisplay.
	SV72		settingsof
	SV71		switch
	SV6		aboutother
	SV5		handbook
8910			pleaserefertotheservice
7			*
		123456
ON:1 OFF:0

	(Upside)	26W		21S4		(Underside)	SV2		SV1
		TH6							OIL
>
<Unitinternallayout
				F3
		L2	R7	TB1B			NF
			R6
	(Underside)	DCL	R1	R5	R3	C3	C2	R2	C1
		MF1		ACCT	THHS	IPM	G/Aboard	ZNR4
boxinternallayout>	(Upside)		INVboard		T01			MAINboard
Controller							RELAY	board
<

	SV73
SEPARATOR	MC			TH10
	63H	TH1
	SV3	SV4	SV5	SV6

	TB7
SNB board	TB3
52C
	TB1A
F6	F5
DS	TB8

TB3 TB7

TB8 TB1A

–20–

• CMB-P105V-E

	Name	Solenoidvalve	Solenoidvalve	Solenoidvalve
	Symbol	SV1 5A	SV1 5B	SV1 5C
Symbolexplanation	Symbol Name	TR Transformer	TH11 16Thermistersensor	LEV1,3 Expansionvalve
		Shieldwire	}Transmissionline DC30V
		TB02	M2	M1

Solenoidvalve
1
SVM	Terminalblock (forpowersource)	Terminalblock (forTransmission)
Pressuresensor
PS1,3	TB01	TB02

isterminalblockfortransmission.	connectpowerlinetoit.	:SVMisnotbuiltindependingonmodels.
Note:1.TB02	Never	2.
		1

	SV1B	SV1A	SV1C	SV2B	SV2A	SV2C	SV3B	SV3A	SV3C	SV4B	SV4A	SV4C	SV5B	SV5A	SV5C
1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16
1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16

1	3	CN26	1	3	5	7	CN27	1	3	5	7	CN28	1	3	5	7	CN29	1	3	5	7	CN30	1	3	5	7
	CNTR	X2		X1	X30		X4		X3	X31		X6		X5	X32		X8		X7	X33		X10		X9	X34

240V
220
TR	2 1	CN02
22V
20	3 2 1	CN03

Board	CNP1		CNP3			CN13				4CN10						2 CN11
	1 2	3	1 2	3	1	2	1	2	3		5	6	7	8	1		3	4
BC
	3 2 1		3 2 1
	PS1		PS3					TH11		TH12						TH15		TH16

1	SVM
	1	2
	1	2

		1
1	X21	CN36	1
			3
		CN12	1 3 5

	6
CN05	2 3 4 5
	1

	6
CN07	2 3 4 5
	1

sourcePower220V/NEARTH 50Hz240V

}N TB01 L

LEV1

LEV3

PE

–21–

				Name	Solenoidvalve	Solenoidvalve
				Symbol	SV1 6A	SV1 6B
				Symbol Name	TR Transformer	TH11 16Thermistersensor
	Symbolexplanation

LEV1,3 Expansion valve SV1 6C Solenoid valve

Solenoidvalve
1
SVM	Terminalblock (forpowersource)	Terminalblock (forTransmission)
Pressuresensor
PS1,3	TB01	TB02

Note:1.TB02 is terminal block for transmission.

Never connect power line to it.

dependingin models.on

builtnot

is:SVM1 2.

SV6B SV6A SV6C

SVM1

4 3 2 1 4 3 2 1

• CMB-P106V-E

TR

Shieldwire	}Transmissionline DC30V
TB02	M2	M1

20 22V 220 240V

BC Board

							SV1B	SV1A	SV1C	SV2B	SV2A
						1	2	3	4	5	6
						1	2	3	4	5	6
1	3	CN26	1	3	5	7	CN27	1	3	5	7

CNTR		X2	X1	X30	X4	X3	X31
1 3	CN38
1					1
6 5 4 32		CN50			CNOUT
7
1
5 4 3 2		CN51
6
2 1		CN02
3 2 1		CN03
3 2 1		CNVCC1
CNP1					CNP3			CN13
1 2	3				1 2	3	1	2
3 2 1					3 2 1
PS1					PS3

SV2C

SV3B

SV3A

SV3C

SV4B

SV4A

SV4C

SV5B

SV5A

SV5C

7	8	9	10	11	12	13	14	15
7	8	9	10	11	12	13	14	15

CN28	1	3	5	7	CN29	1	3	5
X6		X5	X32		X8		X7	X33

CNOUT 3

				CN10
1	2	3	4	5	6	7	8

TH11

TH12

16 16

7	CN30	1	3	5	7
	X10		X9	X34

		CN11
1	2	3	4

TH15

TH16

CN31	1
X12

3	5	7
X11	X35

Powersource /N220V 240V50Hz EARTH
TB01 }L N	PE

		1
1	X21	CN36	1
			3
		CN12	1 3 5

	6
CN05	2 3 4 5	LEV1
	1

	6
CN07	2 3 4 5	LEV3
	1

–22–

• CMB-P108V-E

Symbol explanation

Shield wire

TB02

Name	Solenoidvalve	Solenoidvalve	Solenoidvalve	Solenoidvalve
Symbol	SV1 8A	SV1 8B	SV1 8C	1
				SVM	Terminalblock (forpowersource)
Name	Transformer	Thermistersensor	Expansionvalve	Pressuresensor		Terminalblock (forTransmission)
Symbol	TR	TH11 16	LEV1,3	PS1,3	TB01	TB02

line							SV1B	SV1A	SV1C	SV2B	SV2A
Transmission DC30V						1 1	2 2	3 3	4 4	5 5	6 6
}M2 M1
1	3	CN26	1	3	5	7	CN27	1	3	5	7
CNTR		X2		X1	X30		X4		X3	X31
	13 CN38					1
1	CN50					CNOUT
2
3
4
5
6
7
1
2
3
4
5
6

blockterminalis fortransmission.	powerconnectlinetoit.	inbuiltnotis:SVMdependingonmodels.	1	910111213148 7 6 5 4 3 2 1	910111213148 7 6 5 4 3 2 1
			SV6B
			SV6A
			SV6C
			SV7B
			SV7A
			SV7C
			SV8B
			SV8A
			SV8C
			SVM
Note:1.TB02	Never	2.		16 15	16 15
		1

SV2C	SV3B	SV3A	SV3C	SV4B	SV4A	SV4C	SV5B	SV5A	SV5C
7	8	9	10	11	12	13	14	15	16
7	8	9	10	11	12	13	14	15	16

CN28	1	3	5	7	CN29	1	3	5	7	CN30	1	3	5	7
X6		X5	X32		X8		X7	X33		X10		X9	X34
								CNOUT3

240V	CN51
220				CN02
TR		2 1
22V
20		2 1		CN03
		3
Board		3 2 1		CNVCC1	CNP32
	1	CNP12	3	1		3	1 2	1	2	3	4	5	6	7	8	1	2	3	4
							CN13				CN10						CN11
BC
	3 2 1			3 2 1
		PS1			PS3				TH11		TH12						TH15		TH16

CN31	1	3	5	7
X12		X11	X35

	RELAY4Board
	7
	5	X36
	3	X13	CN52
	1	CN32
		X14
	7		1
	5	X37	2
			3
	3	X15	4
		X16	5
	1		6
		CN33	7

	CN39
3	1

Powersource /N220V 240V50Hz EARTH
TB01 }L N	PE

		1
1	X21	CN36	1
			3
		CN12	1 3 5

	6
CN05	2 3 4 5	LEV1
	1

	6
CN07	2 3 4 5	LEV3
	1

–23–

• CMB-P1010V-E

Symbol explanation

Shield wire

TB02

Name	Solenoidvalve	Solenoidvalve	Solenoidvalve	Solenoidvalve
Symbol	SV1 10A	SV1 10B	SV1 10C	1
				SVM	Terminalblock (forpowersource)
Name	Transformer	Thermistersensor	Expansionvalve	Pressuresensor		Terminalblock (forTransmission)
Symbol	TR	TH11 16	LEV1,3	PS1,3	TB01	TB02

line							SV1B	SV1A	SV1C	SV2B	SV2A
Transmission DC30V						1 1	2 2	3 3	4 4	5 5	6 6
}M2 M1
1	3	CN26	1	3	5	7	CN27	1	3	5	7
CNTR		X2		X1	X30		X4		X3	X31
	13 CN38					1
1	CN50					CNOUT
2
3
4
5
6
7
1
2
3
4
5
6

isterminalblockfortransmission.	connectpowerlinetoit.	:SVMisnotbuiltindependingonmodels.
Note:1.TB02	Never	2.
		1

SV2C	SV3B	SV3A	SV3C	SV4B
7	8	9	10	11
7	8	9	10	11

CN28	1	3	5	7
X6		X5	X32

SV6B

SV6A

SV6C

SV7B

SV7A

SV7C

SV8B

SV8A

SV8C

SV9B

SV9A

SV9C

SV10B

SV10A

SV10C

SVM1

SV4A	SV4C	SV5B	SV5A	SV5C
1212	1313	1414	1515	1616

CN29	1	3	5	7	CN30	1
X8		X7	X33		X10
			CNOUT3

16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

3	5	7
X9	X34

240V	CN51
220				CN02
TR		2 1
22V
20		2 1		CN03
		3
Board		3 2 1		CNVCC1	CNP32
	1	CNP12	3	1		3	1 2	1	2	3	4	5	6	7	8	1	2	3	4
							CN13				CN10						CN11
BC
	3 2 1			3 2 1
		PS1			PS3				TH11		TH12						TH15		TH16

CN31	1	3	5	7
X12		X11	X35

RELAY4Board
7
5	X36
3	X13		CN52
1	CN32
	X14
7			1
5	X37		2
			3
3	X15		4
	X16		5
1			6
	CN33		7
7			1
	X38
5			2
3	X17		3
			4
1	X18		5
			6
35 7	CN34	CN39	CN53
	X19
	X39
	3	1
1	X20
	CN35

Powersource /N220V 240V50Hz EARTH
TB01 }L N	PE

		1
1	X21	CN36	1
			3
		CN12	1 3 5

	6
CN05	2 3 4 5	LEV1
	1

	6
CN07	2 3 4 5	LEV3
	1

–24–

Name	Terminalblock	(forpowersource) Terminalblock (forTransmission)		Solenoidvalve	Solenoidvalve	Solenoidvalve	valve	transmissionisTB02 terminalblock.	connectNeverpowerlinetoit.	dependingonmodels.
	TB01		TB02
Name Symbol	Transformer	sensorThermister	valveExpansion	sensorPressure SV1~13A	SV1~13B	SV1~13C	SVMSolenoid1			1
										:SVMbuiltnotinis
Symbol	TR	TH11~16	LEV1,3	PS1,3				Note:1.		2.

SV6B	1 1
SV6A	2 2
SV6C	3 3
SV7B	4 4
SV7A	5 5
SV7C	6 6
SV8B	7 7
SV8A	8 8
SV8C	9 9
SV9B	10 10
SV9A	11 11
SV9C	12 12
SV10B	13 13
SV10A	14 14
SV10C	15 15
SVM	16 16
1

			SV11B	SV11A	SV11C	SV12B	SV12A	SV12C	SV13B		SV13A		SV13C
			1	2	3	4	5	6	7		8		9	10	11	12	13	14	15	16
			1	2	3	4	5	6	7		8		9	10	11	12	13	14	15	16
RELAY10 Board
1	3	5	7	1	3	5	7	1		3		5		7
CN40	X41	X40	X42	CN41	X44	X43	X45	CN42		X47		X46		X48
1
3 2	CNVCC2
1 3	CN39
7
5	X36
3	X13
1	X14
CN32
7
5	X37
3	X15
1	X16
CN33
7
5	X38
3	X17
1	X18
CN34																				CNOUT2	CNOUT4
5 7	X39
3	X19																			1 2 3 4 5 6 7 8	1 2 3 4
	X20
1
CN35

• CMB-P1013V-E

Shield wire

TB02

240V 220 TR 22V 20

DC lineTransmission30V

} M2 M1

BC Board

							SV1B		SV1A	SV1C	SV2B	SV2A	SV2C	SV3B		SV3A		SV3C		SV4B		SV4A	SV4C		SV5B		SV5A	SV5C
						1	2		3	4	5	6	7	8		9		10		11		12	13		14		15	16
						1	2		3	4	5	6	7	8		9		10		11		12	13		14		15	16
1	CNTR3		1	3	5	7	CN27	1		3	5	7	CN28	1		3		5		7		CN291		3		5		7	1		3	5	7
			CN26X2	X1	X30		X4			X3	X31		X6			X5		X32				X8		X7		X33			CN30X10		X9	X34
12345	CN50		CN38				CNOUT1			1	2	3	4	5		6		7		8		1	2		3		4	CNOUT3
	3
	1
6
7
1	CN51
4 3 2
5
6
	2 1		CN02
	3 2 1		CN03
	3 2 1		CNVCC1
	CNP1						CNP3				CN13									CN10	5	6		7		8			CN11
1 2		3					1 2		3		1 2		1		2		3		4									1	2	3		4
3 2 1						3 2 1
	PS1						PS3							TH11				TH12										TH15			TH16

CN31	1
	X12

3	5	7
X11	X35

1

X21

1 CN36

CN12

CN05

CN07

1 3 5 3 1

1 2 3 4 5 6 1 2 3 4 5 6

Power~/N source 50Hz220V~240VEARTH

} TB01 L N

PE

LEV1

LEV3

–25–

Name	Terminalblock	(forpowersource) Terminalblock (forTransmission)		Solenoidvalve	Solenoidvalve	Solenoidvalve	valve	transmissionisTB02 terminalblock.	connectNeverpowerlinetoit.	dependingonmodels.
	TB01		TB02
Name Symbol	Transformer	sensorThermister	valveExpansion	sensorPressure SV1~16A	SV1~16B	SV1~16C	SVMSolenoid1			1
										:SVMbuiltnotinis
Symbol	TR	TH11~16	LEV1,3	PS1,3				Note:1.		2.

SV6B	1 1
SV6A	2 2
SV6C	3 3
SV7B	4 4
SV7A	5 5
SV7C	6 6
SV8B	7 7
SV8A	8 8
SV8C	9 9
SV9B	10 10
SV9A	11 11
SV9C	12 12
SV10B	13 13
SV10A	14 14
SV10C	15 15
SVM	16 16

1

			SV11B	SV11A	SV11C	SV12B	SV12A	SV12C	SV13B		SV13A		SV13C	SV14B	SV14A	SV14C	SV15B	SV15A	SV15C	SV16B			SV16A	SV16C
			1	2	3	4	5	6	7		8		9	10	11	12	13	14	15	16			1	2
			1	2	3	4	5	6	7		8		9	10	11	12	13	14	15	16			1	2
RELAY10 Board
1	3	5	7	1	3	5	7	1		3		5		7	1	3	5	7	1	3	5	7	1	3	5	7
CN40	X41	X40	X42	CN41	X44	X43	X45	CN42		X47		X46	X48		CN43	X50	X49	X51	CN44	X53	X52	X54	CN45	X56	X55	X57
1
3 2	CNVCC2
1 3	CN39
7
5	X36
3	X13
1	X14
CN32
7
5	X37
3	X15
1	X16
CN33
7
5	X38
3	X17
1	X18
CN34																					CNOUT2					CNOUT4
5 7	X39
3	X19																		1 2 3 4 5 6 7 8						1 2 3 4
	X20
1
CN35

• CMB-P1016V-E

Shield wire

TB02

240V 220 TR 22V 20

DC lineTransmission30V

} M2 M1

BC Board

							SV1B		SV1A	SV1C	SV2B	SV2A	SV2C	SV3B		SV3A		SV3C		SV4B		SV4A	SV4C		SV5B		SV5A	SV5C
						1	2		3	4	5	6	7	8		9		10		11		12	13		14		15	16
						1	2		3	4	5	6	7	8		9		10		11		12	13		14		15	16
1	CNTR3		1	3	5	7	CN27	1		3	5	7	CN28	1		3		5		7		CN291		3		5		7	1		3	5	7
			CN26X2	X1	X30		X4			X3	X31		X6			X5		X32				X8		X7		X33			CN30X10		X9	X34
12345	CN50		CN38				CNOUT1			1	2	3	4	5		6		7		8		1	2		3		4	CNOUT3
	3
	1
6
7
1	CN51
4 3 2
5
6
	2 1		CN02
	3 2 1		CN03
	3 2 1		CNVCC1
	CNP1						CNP3				CN13									CN10	5	6		7		8			CN11
1 2		3					1 2		3		1 2		1		2		3		4									1	2	3		4
3 2 1						3 2 1
	PS1						PS3							TH11				TH12										TH15			TH16

CN31	1
	X12

3	5	7
X11	X35

1

X21

1 CN36

CN12

CN05

CN07

1 3 5 3 1

1 2 3 4 5 6 1 2 3 4 5 6

Power~/N source 50Hz220V~240VEARTH

} TB01 L N

PE

LEV1

LEV3

–26–

[4] Standard Operation Data

1 Cooling operation

			Heat source unit		PQRY-P200YMF-C				PQRY-P250YMF-C
Items
	Power source			V/Hz	380-415V/50Hz • 60Hz				380-415V/50Hz • 60Hz
	Ambient temp.		Indoor	DB/WB		27.0/19.0				27.0/19.0
	Circulated water temp. (Intet)			° C			30			30
			Quantity	Q’ty			4			4
	Indoor unit		Quantity in operation
							4			4
Condition			Model	–	63	63	50	25	125	40	63	25
			Main pipe				5			5
	Piping		Branch pipe	m	5	5	5	5	5	5	5	5
			Total piping length				25			25
	Indoor unit fan notch			–	Hi	Hi	Hi	Hi	Hi	Hi	Hi	Hi
	Refrigerant volume			kg			11.4			12.2
	Compressor volts / Frequency			V	380		415		380		415
					270/77		270/77		340/95		340/95
				V/Hz
	Heat source unit			A	14.0		12.8		18.8		17.2
opening	Indoor unit				330	460	430	300	410	330	460	300
	BC controller (1, 3)			Pulse	2000		240		2000		260
LEV	Oil return						180			330
Pressure	High pressure/Low pressure					22.0/5.3				21.5/5.0
				kg/cm2G		(2.20/0.52)				(2.15/0.50)
	BC controller liquid/Intermediate			(MPa)		20.9/20.9				20.4/20.4
						(2.09/2.09)				(2.04/2.04)
		Discharge (TH1)					101			99.0
temperature			Inlet				7			7
		Accumulator
	Heat		Outlet				10			10
	source	Suction (Comp)		˚C			12			12
	unit
Sectional		CS circuit (TH2)					4.9			4.3
		Shell bottom (Comp)					70			78
		LEV inlet					26			30
	Indoor
	unit	Heat exchanger outlet					15			15
	α OC						0.23			0.23
					–27–

2 Heating operation

Heat source unit

PQRY-P200YMF-C

PQRY-P250YMF-C

Items

Power source

V/Hz

380-415V/50Hz • 60Hz

380-415V/50Hz • 60Hz

Ambient temp.

Indoor

DB/WB

20.0/–

20.0/–

Circulated water temp.

° C

20

20

Quantity

Q’ty

4

4

Indoor unit

Quantity in operation

4

4

Condition

Model

–

63

63

50

25

125

40

63

25

Main pipe

5

5

Piping

Branch pipe

m

5

5

5

5

5

5

5

5

Total piping length

25

25

Indoor unit fan notch

–

Hi

Hi

Hi

Hi

Hi

Hi

Hi

Hi

Refrigerant volume

kg

11.4

12.2

Compressor volts/Frequency

V

380

415

380

415

250/75

250/75

330/93

330/93

V/Hz

Heat source unit total current

A

13.1

12.0

16.1

14.8

opening

Indoor unit

600

950

750

400

750

600

950

400

BC controller (1, 3)

Pulse

60

600

60

850

LEV

Oil return

115

115

Pressure

High pressure/Low pressure

22.0/5.6

22.0/5.4

kg/cm2G

(2.20/0.56)

(2.20/0.54)

BC controller liquid/Intermediate

(MPa)

21.0/18.0

21.0/18.0

(2.10/1.80)

(2.10/1.80)

Discharge (TH1)

75

79

temperature

Accumulator

Inlet

–1

–1

Heat

Outlet

–4

–2

source

unit

Suction (Comp)

–1

–1

CS circuit

Sectional

(TH2)

˚C

7

5

Shell bottom (Comp)

55

60

LEV inlet

38

40

Indoor

unit

Heat exchanger outlet

80

85

α OC

0.28

0.28

–28–

[5] Function of Dip SW and Rotary SW

(1) Heat source unit

Switch		Function	Function according to switch operation			Switch set timing
			When off		When on	When off		When on
SWU	1~2	Unit address setting	Set on 51~100 with the dial switch.			Before power is turned on.
SW1	1~8	For self diagnosis/	LED monitering display			During normal operation when power
		operation monitoring				is on.
	9~10	–	–		–	Should be set on OFF.
SW2	1	Centralized control switch	Centralized control not	Centralized control		Before power is turned on.
			connected.	connected.
	2	Deletion of connection	Storing of refrigeration	Deletion of refrigeration		Before power is turned on.
		information.	system connection	system connection
			information.	information.
	3	Deletion of error history.	–	Deletion		During normal operation when power
						is on.
	4	Adjustment of refrigerant	Ordinary control	Refrigerant volume		During normal		Invalid 2 hours
		Volume		adjustment operation.		operation when		after compressor
						power is on.		starts.
	5	–	–		–		–
	6	–	–		–		–
	7	Operation ON signal	The relay closes during	The relay closes during		At all times
		output switching	compressor operation.	reception of the cooling or
		Relay contact output		the heating operation
		TB8-1,2		signal from the controller.
				(Note: It is output even if
				the thermostat is OFF
				(when the compressor is
				stopped).)
	8	Disregard pump interlock	Normal	Disregard trouble		At all times
		trouble.
	9	–	–		–		–
	10	–	–		–		–
SW3	1	SW3-2 Function valid/	SW3-2 Function invalid	SW3-2 Function valid		During normal operation when power
		invalid				is on.
	2	Indoor unit test operation	Stop all indoor units.	All indoor units test		When SW3-1 is ON after power is
				operation ON.		turned on.
	3	CN51-3,5 Output switching	Water heat exchanger	Heat source unit abnormal		At all times
			freeze prevention signal	output
	4	Freeze prevention operation	Normal	Freeze prevention operation*		At all times
	5	Target Te (α ) at cooling-	–2˚C		–5˚C	At all times
		only
	6	Pump down operation	Invalid		Valid	During Comp stop (only when power
						changes from OFF → ON)
	7	Target Tc (High pressure)	50˚C		53˚C	During normal operation when power
		at heating				is on.
	8	–	–		–		–
	9	–	–		–		–
	10	Models	Model P200		Model P250	When switching on the power.
SW4	1	SW4-2 function valid/	Invalid		Valid	During normal operation when power
		Invalid				is on.
	2	Configuration compensa-	Changes as shown below	by on →	off change	When SW4-1 in ON.
		tion value	0% → 3% → 6% → 9% →	12% →	–6% → –3% → 0%
	3	–	–		–		–

Note:

•SWU1~2=00 when shipped from the factory. Other factory settings are indicated by shaded portions.

•If the address is set from 01 to 50, it automatically becomes 100.

*Freeze prevention operation

When the water temp. (TH6) below less 5˚C during compressor is stopping, the compressor starts to run with cooling mode to prevent the water freeze.

–29–