Mitsubishi MEE99K029J Service Manual
AIR CONDITIONERS CITY MULTI
Models PQRY-P200YMF-B, P250YMF-B
CMB-P104, P105, P106, P108, P1010, P1013, P1016V-E
Service Handbook
Contents
1 PRECAUTIONS FOR DEVICES THAT USE R407C REFRIGERANT ..... 1
[1] Storage of Piping Material ................................................................. 2
[2] Piping Machining ............................................................................... 3
[3] Necessary Apparatus and Materials and Notes on Their Handling .. 4
[4] Brazing .............................................................................................. 5
[5] Airtightness Test ................................................................................ 6
[6] Vacuuming ........................................................................................ 6
[7] Charging of Refrigerant ..................................................................... 7
[8] Dryer ................................................................................................. 7
2 COMPONENT OF EQUIPMENT ............................................................. 8
[1] Appearance of Components ............................................................. 8
[2] Refrigerant Circuit Diagram and Thermal Sensor ........................... 15
[3] Equipment Composition .................................................................. 17
[4] Electrical Wiring Diagram ................................................................ 18
[5] Standard Operation Data ................................................................ 27
[6] Function of Dip SW and Rotary SW................................................ 29
[7] External Input/Output Specifications ............................................... 32
3 TEST RUN ............................................................................................. 33
[1] Before Test Run ............................................................................... 33
[2] Address setting ............................................................................... 38
[3] Test Run Method ............................................................................. 43
4 GROUPING REGISTRATION OF INDOOR UNITS WITH REMOTE
CONTROLLER ....................................................................................... 44
5 CONTROL .............................................................................................. 50
[1] Control of Heat Source Unit ............................................................ 50
[2] Control box cooling system ............................................................. 54
[3] Control of BC Controller .................................................................. 55
[4] Operation Flow Chart ...................................................................... 56
[5] List of Major Component Functions ................................................ 62
[6] Resistance of Temperature Sensor ................................................. 65
6 REFRIGERANT AMOUNT ADJUSTMENT ............................................ 66
[1] Refrigerant Amount and Operating Characteristics ........................ 66
[2] Adjustment and Judgement of Refrigerant Amount ........................ 66
7 TROUBLESHOOTING ........................................................................... 75
[1] Principal Parts ................................................................................. 75
[2] BC Controller Disassembly Procedure.......................................... 103
[3] Self-diagnosis and Countermeasures Depending on the
Check Code Displayed .................................................................. 109
[4] LED Monitor Display ..................................................................... 131
8 PREPARATION, REPAIRS AND REFRIGERANT REFILLING
WHEN REPAIRING LEAKS ................................................................. 141
[1] Location of leaks: Extension piping or indoor units (when cooling) ... 141
[2] Location of leaks: Heat Source Unit (Cooling mode) .................... 141
[3] Location of Leaks: Extension Piping or Indoor Units
(Heating mode) ............................................................................. 142
[4] Location of Leaks: Heat Source Unit (when Heating) ................... 142
9 CHECK THE COMPOSITION OF THE REFRIGERANT ..................... 143
0 DIFFERENCES BETWEEN THE PREVIOUS REFRIGERANT
AND THE NEW REFRIGERANT ......................................................... 145
[1] Chemical Characteristics .............................................................. 145
[2] Chances in Composition ............................................................... 145
[3] Pressure Characteristics ............................................................... 146
A REFRIGERATOR OIL .......................................................................... 147
[1] Refrigerator Oil with HFC Based Refrigerants .............................. 147
[2] Influence of Contaminants ............................................................ 147
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>
: Please pay attention to electric shock fully because
ELV
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.
11
1 PRECAUTIONS FOR DEVICES THAT USE R407C REFRIGERANT
11
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 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.
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.
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.
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.
–1–
[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.
–2–
[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.
–3–
[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
Vacuum pump Vacuum drying Current product
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
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
Identification of dedicated use for R407C
: Record refrigerant
name and put brown
belt on upper part of
cylinder.
Can be used by
attaching an adapter
with a check valve.
Ester oil or Ether oil or
Alkybenzene (Small
amount)
Symbols :
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.
To be used for R407C only. Can also be used for conventional refrigerants.
–4–
[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.
–5–
[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.
–6–
[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
Cylin-
Cylin-
der
Cylinder color identification R407C-brown Charged with liquid refrigerant
der
Valve
Liquid
Valve
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.
–7–
22
2 COMPONENT OF EQUIPMENT
22
[1] Appearance of Components
Heat source unit
Heatexchanger
Control Box
4-way
Valve
SV
Block
Compressor
CV
Block
Drier
–8–
Accumulator
Control Box
Front View
INV board
Transformer
(T01)
RELAY
board
MAIN
board
Inner View
Terminal block TB8
UNIT ON/OFF,
Pump inter lock
Cooling fan
(MF1)
Transistor
Module
TRM3
TRM2
TRM1
Terminal block TB1A
Power Source
DC reactor
(DCL)
Terminal block TB3
Transmission
Terminal block TB7
Transmission (Centralized Control)
Choke coil
(L2)
Fuse
(F3)
Capacitor
(C2, C3)
Diode
stack
(DS)
Magnetic Contactor (52C)
Noise
Filter
–9–
MAIN board
CNTR CNVCC4 CNS1 CNS2 CN40 CN41
Power source
for control (5V)
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
SW3SW4CN20
SWU1SWU2
SW1SW2
–10–
INV board
Output to transistor module
CN3 CN2-1 CN2-2 CN2-3
CNVCC2
Power supply (5V)
CNVCC1
Power supply
1-2 30 V, 1-3 30 V,
4-6 12 V, 5-6 5 V
CNL2
CNVDC
CN52C
CNFAN
CNAC2
Power source
1 L2
3 N
CN30V
CNTH
CNCT
CNR CNRS2 SW1
–11–
RELAY board
–12–
BC controller
BC board
CNTR
CN02
M-NET
transmission
CN03
CN12
Power
supply
1 EARTH
3 N
5 L
SW4 SW2 SW1
–13–
RELAY 10 board
RELAY 4 board
–14–
[2] Refrigerant Circuit Diagram and Thermal Sensor
: Solenoid valve
: Orifice
: Capillary
: Check valve
: Thermal sensor
: Strainer
SP : Service port
ACC : Accumulator
Heat source unit
/h
3
Pipe length 10m
Indoor capacity 100%
TH10, THINV
˜
: MPa for 63HS, 63LS
Heating : Indoor 21/– Inlet water 20˚C
CH
*Operation data of PQRY-P250YMF-B
*Operation Condition Cooling : Indoor 27/19.5 Inlet water 30˚C Water volume 4.93m
*
Standard operation data are shown for cooling
in the C column and heating in the H column.
Units for each balue are : ˚C for TH1
ST8
SV6
Distributor
SV4
SV3
CV11
SV5
CV7
SV72
30 20
TH6
Water
Water heat exchanger
(Double coil type)
SV71
ST7d
ST7b ST7cST7a
BV1
CV3
CV10
CV9
CV8
ST1
CV2
CV5
CV4
CV6
BV2
Orifice
Water
circulating
Solenoid Valves
Block
4way valve
ST2
SP1
2.2
2.15
63HS
SV2
ST5
SV73
CP1
Oil
separator
ST6
CP3
SV1
99.0 79.0
TH1
Accumulator
SLEV
TH3
SP2
ST3
9.0
23.5
TH10
ST4
TH4
CP2
CP4
78 60
30.0 29.0
TH INV
6.2 6.54.3 5.0
0.50 0.54
63LS
Cooling INV HEX
TH2
TH9
LEV2
Check Valves Block
32.0 22.0
Drier
Compressor
CV1
63H
–15–
: Solenoid valve
: Orifice
: Capillary
: Check valve
: Thermal sensor
: Strainer
SP : Service port
ACC : Accumulator
BC controller, Indoor unit
Indoor
units
SVC
Valves Block
SVA
SVB
TH23
TH21
TH11
TH22
PS1
LEV
LEV1
PS3
BC controller
CMB-P104V-E
Gas/liquid separator
TH12
SVM
TH15
LEV3
TH16
–16–
[3] Equipment Composition
A. Heat source unit
PQRY-P200YMF-B
PQRY-P250YMF-B
B. BC controller
4-branch type 5-branch type 6-branch type 8-branch type 10-branch type 13-branch type 16-branch type
CMB-P104V-E CMB-P105V-E CMB-P106V-E CMB-P108V-E CMB-P1010V-E CMB-P1013V-E CMB-P1016V-E
C. Branch pipe kit/joint pipe kit
Branch pipe kit
CMY-Y102S-F CMY-Y102L-F
Joint pipe kit
CMY-R160-G: for V-E type
D. Indoor unit
20VMB
25VBM
32VBM
40VBM
-
-
-
-
-
-
-
Cassette ceiling
-
80VLMD
100VLMD
125VLMD
Ceiling
4-way flow2-way flow
concealed
PLFY-PPLFY-P PEFY-P PKFY-P PCFY-P PFFY-P PFFY-P
Ceiling mounted
built-in
PDFY-P
Wall mounted
Ceiling
suspended
20VM
25VM
32VM
40VM
50VM
63VM
-
80VKM
100VKM
125VKM
71VMH
80VMH
100VMH
125VMH
71VM
80VM
100VM
125VM
-
-
-
-
-
100VGM
125VGM
-
Model
1-way flow
Capacity
PMFY-P
20 -20VLMD 20VML 20VAM - 20VLEM 20VLRM
25 -25VLMD 25VML 25VAM - 25VLEM 25VLRM
32 32VKM32VLMD 32VML 32VGM - 32VLEM 32VLRM
40 40VKM40VLMD 40VMH 40VGM 40VGM 40VLEM 40VLRM
50 50VKM50VLMD 50VMH 50VGM - 50VLEM 50VLRM
63 63VKM63VLMD 63VMH - 63VGM 63VLEM 63VLRM
71
80
100
125
140 -- 140VMH - - - -
Floor standing
Exposed Concealed
--
-
-
-
-
-
-
E. Option (panel)
Model
Capacity
20
25
32
40
50
63
80
100, 125
Decoration panel
PMP- CMP-
40MB
32LW-F
40LW-F
-
63LW-F
125LW-F
PLP-
-
3GB
6GB
F. Remote controller
PAR-F25MA MJ-103MTRAPAC-FL31MA PAC-SC30GRA PAC-SC32PTA PAC-SE51CRA
CHECK
TEST RUN
STAND BY
DEFROST
NETWORK
REMOTE CONTROLLER
PAR-F25MA
CENTRALLY CONTROLLED
CHECK
INDOOR UNIT
ADDRESS NO.
TEMP. TIMER SET
˚C
ON OFF
CLOCK
ERROR CODE
OA UNIT ADDRESS NO.
˚C
AM
–
ON/OFF
1Hr.
˚C
FILTER
CHECK MODE
TEST RUN
NOT AVAILABLE
ON OFFCLOCK
FILTER
CHECK
TEST RUN
PM
AM
PM
NOT AVAILABLE
ON/OFF
MODE
CLOCK
FAN
VANE
STOP
START
MIN.
HR.
COLLECTIVE
GROUP
GROUP
REMOTE CONTROLLER
PAC-SC30GRA
CENTRALLY CONTROLLED
ADDRESS
CHECK
˚C
ON/OFF
˚C
OFF
ON
FILTER
CHECK MODE
TEST RUN
NOT AVAILABLE
ON/OFFTEMP.
FILTER
CHECK
GROUP
TEST RUN
ON/OFF
CENTRAL CONTROLLER
TEST RUN
ON/OFF
FAN SPEED
MODE
GROUP
123
SELECT
AIR
DIRECTION
BACK
SCREEN
6
54
CLOCK/
TEMP.
VENTILATION
PATTERN
INS.
9
87
TIMER
REMOTE
RESET
MODE
PROHIBITION
ENTER
MJ-103MTRA
0
DEL.
PROGRAM TIMER
PAC-SC32PTA
SET
SET/MONITOR TODAY
SMTWTFS
CLOCK
SET BACK
036912
12 15 18 21 24
WEEKLY
DAILY
SET BACK ON
SETTING
SETTING
ON
SET BACK
DAILY TIMER
OFF
OFF
–17–
TEMP.
CENTRAL
TEMP.CHECK
ON/OFF
PAC-SE51CRA
˚C
[4] Electrical Wiring Diagram
<ELECTRICAL WIRING DIAGRAM>
Refer to the [6]
the switch operations.
L2
S
M2
M1
L1
1
L3
PE
R6
5
243
32
4
1123 67
181221123712631523445312
234
1
5
56123
F01
250VAC
2A F
3
CN33
(3P)
1
1
3
CN20
(3P)
223
221
131
CNS1
(2P)
CNAC2
(3P)
CNCT
(4P)
CNVDC
(4P)
2
CNS2
(3P)
1
CNX10
(3P)
CNR
(3P)
2
CN52C
(3P)
3
CNTH
(2P)
X02
X01
N
N
L3
SV1
LEV2
CH1
TB1A
L2
F1
250VAC
2A F
123
TH1
TH2
Black
White
Red
63HS
123
Black
White
Red
63LS
L1
SLEV
PE
White
Red
Black
Blue
Green/
Yellow
TB3
M1
M2
TB7
~
DS
C1
~-
~
+
ZNR4
C1
R5
R1
52C
+
TRM1
+
DCL
C2
C3
R2
R3
T01
F3
250VAC
1A F
CNTR1
TRM2
C1
C2E1
B2
E2
E2
E1
B1
B1
E1
E2
E2
B2
C2E1
C1
TRM3
C2E1
B2
E2
E2
E1
B1
C14
C15
C16
43
DCCT
21
White
C25
U
C22C21
C24C23
C20
W
MC1
V
Motor
(Compressor)
Red Black
3
21
FG
12
2
34
1
12
2
34 2
13
12
2
12
1
11
2
23
1
45
3
6
2
2341217654321
56123
52C
X02
X01
X10
CNVCC1
(6P)
CNVCC2
(6P)
CNVCC3
(6P)
CNVCC4
(2P)
CNRS3
(7P)
CNRS2
(7P)
CNFAN
(3P)
THHS
CNH
(3P)
CNL
(3P)
CN2-1
(2P)
CN2-2
(2P)
CN2-3
(2P)
CN3
(6P)
CN32
(3P)
CNLV1
(5P)
CNTR
(3P)
CNLV2
(5P)
CNL2
(2P)
CN30V
(2P)
MF1
Purple
R7
Black
Yellow
Orange
L2
Power circuit board
(INV board)
BOX BODY
Red
Brown
Black
Purple
Black
Yellow
White
Red
Brown
Orange
Red
Blue
34251
CN51
(5P)
12V
5 : DIP SW3-3 OFF : water freeze signal
ON : trouble signal
4 : Compressor ON/OFF
Control circuit board
(MAIN board)
TH10THINV
CN12
(2P)
CN09
(2P)
CN06
(2P)
CN05
(4P)
CN03
(3P)
CN02
(8P)
CN01
(2P)
CNOUT1
(6P)
12
TH9
CNRT1
(5P)
54321
12
65432
1
X08
X09
CN36
(6P)
CN37
(6P)
CN38
(3P)
65432
1
X06
X07
TH4 TH3 TH6
63H
CH3
CH2
SV2
21S4
X05
X04
SSR
12
34
X10
321
123123456
CN34
(6P)
CN35
(3P)
432121
BOX BODY
BOX BODY
TB1B
NF
Red
White
Black
Blue
Red
White
Black
Blue
L1
L2
L3
N
L1
L2
L3
N
L1
L2
L3
N
65432
1
detection
circuit
SV4
SV3
SV6
SV5
CN63PW
(4P)
432
1
321
4
CNAC3
(4P)
AC1
AC4
(to CNAC4)
26W
detection
circuit
RELAY board
(to CNAC3)
AC4 AC1
65432
1
CNOUT2
(6P)
63PW
TB8
123
4
circuit
detection
X25
CN83
(7P)
753
1
SV73
SV71
SV72
X23
X22
X21
98765
CN81
(9P)
432
1
CNAC4
(4P)
4
32 1
123
4
CNPW
(4P)
Noise
Filter
Diode
stack
Code heater
(Accumulator liquid
level detect)
High pressure
switch
Freeze protect
switch
Pump
interlock
BOX BODY
132
CN3D
(3P)
DEMAND
Unit ON/OFF
FB1
Inverter
Controller Box
Terminal
Block
Terminal
Block
Power source
3N~
380/400/415V
50/60Hz
Connect to
Indoor and
remote controller
Crank case heater
(Compressor)
• PQRY-P200·250YMF-B
–18–
SV1, SV2
4-way valve
Solenoid valve (Discharge-suction bypass)
21S4
Aux. relay
Discharge pipe temp. detect
Saturation evapo. temp. detect
X1,2,4~10
X21~23,25
Electronic expansion valve
(Heat exchanger for inverter)
Electronic expansion valve (Oil return)
High pressure sensor
Low pressure sensor63LS
63HS
SLEV
LEV2
Solenoid valve
(Heat exchanger capacity control)
Solenoid valve
(Heat exchanger capacity control)
SV71~73
SV3~6
Solid state relaySSR
Varistor
Name
Symbol
DCL
(Power factor improvement)
<Symbol explanation>
DC reactor
DCCT Current Sensor
ZNR4
FB1 Ferrite core
Radiator panel
52C
MF1
Magnetic contactor
(Inverter main circuit)
Chock coil (Transmission)
Diode stack
Power transistor module
Niose FilterNF
TRM1~3
DS
L2
OA temp. detect
High pressure liquid temp.
Compressor shell temp.
Radiator panel temp. detect
Outlet temp. detect of
heat exchanger for inverter
Lower
Upper
Accumulator liquid
temp. detect
Thermistor
THHS
TH10
TH9
TH6
TH4
TH3
TH2
TH1
THINV
Earth terminal
21S4
SV1
SV2
SV3
SV4
SV72SV71SV5
SV6
SV73
SSR
<Unit internal layout>
(Upside) (Underside)
<Controller box internal layout>
<Operation of self-diagnosis switch (SW1) and LED display>
<LED display>
SV3
SV4
SV5
SV6
TH6
THINV
TH2
21S4
26W
INVERTER
SV72 SV71
OIL
MC
ACCUMULATOR
TH9
LEV2
SLEV
TH4
TH3
SV1
SV73
SV2
63H
TH1
TH10
63HS
63LS
CONTROLLER
BOX
SEPARATOR
(Underside)
(Upside)
C2
DCCT
R3
R2
ZNR4
C1
DS
THHS
DCL
R5
R1
R6
L2
R7
F3
C3
NF
TB7
TB3
TB1A
TB8
52C
TB1B
MF1
TRM1
TRM2
TRM3
RELAY
board
T01
MAIN board
INV board
TB7
TB3
TB8
TB1A
Display
Relay output
display
(Lighting)
Check display1
(Blinking)
(at factory shipment)
Display at LED lighting (blinking) Remarks SW1 operation
FLAG1 FLAG2 FLAG3 FLAG4 FLAG5 FLAG6 FLAG7 FLAG8
Display the address and error code by turns
Always
lighting
FLAG8 always lights
at microcomputer
power ON
During
compressor
run
Crankcase
heater
51
1102
FLAG1
FLAG2
FLAG3
FLAG4
FLAG8
FLAG7
FLAG6
FLAG5
ON:1
OFF:0
1 2 3 4 5 6 7 8 9 10
ON:1
OFF:0
1 2 3 4 5 6 7 8 9 10
* please refer to the service handbook about other switch settings of LED display.
LD1
• PQRY-P200·250YMF-B
–19–
Symbol explanation
PE
3
2
1
3
2
1
EARTH
Terminal block
(for Transmission)
TB02
Terminal block
(for power source)
TB01
Note:TB02 is terminal block for transmission.
Never connect power line to it.
NameSymbol
Solenoid valve
Solenoid valve
Solenoid valve
Solenoid valve
Expansion valve
Thermister sensor
Transformer
NameSymbol
SV1 4A
SV1 4B
SV1 4C
SVM
TR
TH11 16
LEV1,3
PS1,3 Pressure sensor
Transmission line
Shield wire
/N 220V 240V 50Hz
Power source
BC Board
31
LEV1
TB01
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
SVM
SV4B
SV4A
SV4C
SV3B
SV3A
SV3C
SV2B
SV2A
SV2C
SV1C
SV1A
SV1B
}
CN38
3
1
CNTR
CN02
CN12
153
31
7
5
3
1
7
5
3
1
7
5
3
1
7
5
3
1
TR
3
CNVCC1
12
X2
X1
X30
X4
X3
X31
X6
X5
X32
X8
X7
X33
X21
}
DC 30V
654321654321
LEV3
1
2
3
CNP1
1
2
3
CNP3
2
1
1
2
3
4
5
6
7
8
4
3
2
1
12321
CN03
CN13
CN10
CN11
CN07 CN05
L
N
TH11
TH12
TH15
TH16
PS1
PS3
20 22V
TB02
M2
M1
CN26
CN27
CN28
CN29
TB01
220 240V
CN36
• CMB-P104V-E
–20–
Symbol explanation
PE
3
2
1
3
2
1
EARTH
Terminal block
(for Transmission)
TB02
Terminal block
(for power source)
TB01
Note:TB02 is terminal block for transmission.
Never connect power line to it.
NameSymbol
Solenoid valve
Solenoid valve
Solenoid valve
Solenoid valve
Expansion valve
Thermister sensor
Transformer
NameSymbol
SV1 5A
SV1 5B
SV1 5C
SVM
TR
TH11 16
LEV1,3
PS1,3 Pressure sensor
Transmission line
Shield wire
/N 220V 240V 50Hz
Power source
BC Board
31
LEV1
TB01
16
15
2
1
2
1
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
SV4B
SV4A
SV4C
SV3B
SV3A
SV3C
SV2B
SV2A
SV2C
SV1C
SV1A
SV1B
}
CN38
3
1
CNTR
CN02
CN12
153
31
7
5
3
1
7
5
3
1
7
5
3
1
7
5
3
1
TR
3
CNVCC1
12
X2
X1
X30
X4
X3
X31
X6
X5
X32
X8
X7
X33
X21
}
DC 30V
654321654321
LEV3
1
2
3
CNP1
1
2
3
CNP3
2
1
1
2
3
4
5
6
7
8
4
3
2
1
12321
CN03
CN13
CN10
CN11
CN07 CN05
L
N
TH11
TH12
TH15
TH16
PS1
PS3
20 22V
TB02
M2
M1
CN26
CN27
CN28
CN29
TB01
220 240V
SV5C
SV5A
SV5B
7
5
3
1
X10
X9
X34
CN30
SVM
CN36
• CMB-P105V-E
–21–
PE
3
2
1
3
2
1
EARTH
Note:TB02 is terminal block for transmission.
Never connect power line to it.
Transmission line
Shield wire
/N 220V 240V 50Hz
Power source
BC Board
31
LEV1
TB01
SV6B
SV6A
SV6C
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
SV5C
SV5A
SV5B
SV4B
SV4A
SV4C
SV3B
SV3A
SV3C
SV2B
SV2A
SV2C
SVM
SV1C
SV1A
SV1B
}
4321
1234
CN38
3
1
CNTR
CN02
CN12
153
31
7
5
3
1
7
5
3
1
7
5
3
1
7
5
3
1
7
5
3
1
7
5
3
1
TR
3
CNVCC1
12
X2
X1
X30
X4
X3
X31
X6
X5
X32
X8
X7
X33
X10
X9
X34
X12
X11
X35
X21
}
DC 30V
654321654321
LEV3
1
2
3
CNP1
1
2
3
CNP3
2
1
1
2
3
4
5
6
7
8
4
3
2
1
12321
CN03
CN13
CN10
CN11
CN07 CN05
L
N
TH11
TH12
TH15
TH16
PS1
PS3
20 22V
TB02
M2
M1
CN26
CN27
CN28
CN29
CN30
CN31
TB01
220 240V
CN36
Symbol explanation
Terminal block
(for Transmission)
TB02
Terminal block
(for power source)
TB01
NameSymbol
Solenoid valve
Solenoid valve
Solenoid valve
Solenoid valve
Expansion valve
Thermister sensor
Transformer
NameSymbol
SV1 6A
SV1 6B
SV1 6C
SVM
TR
TH11 16
LEV1,3
PS1,3 Pressure sensor
• CMB-P106V-E
–22–
PE
3
2
1
3
2
1
EARTH
}
Power source
}}
L
N
Power source
/N 220V 240V 50Hz
Note:TB02 is terminal block for transmission.
Never connect power line to it.
Transmission line
Shield wire
SVM
BC Board
CN38
1
3
1
CNTR
CN50
CN51
7654321123456
CN02
CN12
153
31
7
5
3
1
7
5
3
1
7
5
3
1
7
5
3
1
7
5
3
1
7
5
3
1
3
TR
3
CNVCC1
12
X2
X1
X30
X4
X3
X31
X6
X5
X32
X8
X7
X33
X10
X9
X34
X12
X11
X35
X21
}
DC 30V
654321654321
LEV3 LEV1
1
2
3
CNP1
1
2
3
CNP3
2
1
1
2
3
4
5
6
7
8
4
3
2
1
123
21
CN03
CN13
CN10
CN11
CN07 CN05
CN36
TH11
TH12
TH15
TH16
PS1
PS3
20 22V
TB02
M2
M1
CN26
CN27
CN28
CN29
CN30
CN31
TB01
220 240V
LEV1
7654321
TB01
SV6B
SV6A
SV6C
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
RELAY4 Board
SV5C
SV5A
SV5B
SV4B
SV4A
SV4C
SV3B
SV3A
SV3C
SV2B
SV2A
SV2C
CN32
CN33
CN39
3
1
SV7C
SV7A
SV7B
SV8C
SV8A
SV8B
SV1C
SV1A
SV1B
X14
X13
X36
X37
X15
X16
98765432116 15 1011121314
12345678910111213141516
CN52
75317531
Symbol explanation
Terminal block
(for Transmission)
TB02
Terminal block
(for power source)
TB01
NameSymbol
Solenoid valve
Solenoid valve
Solenoid valve
Solenoid valve
Expansion valve
Thermister sensor
Transformer
NameSymbol
SV1 8A
SV1 8B
SV1 8C
SVM
TR
TH11 16
LEV1,3
PS1,3 Pressure sensor
• CMB-P108V-E
–23–
PE
3
2
1
3
2
1
EARTH
}
Power source
}}
L
N
Power source
/N 220V 240V 50Hz
Note:TB02 is terminal block for transmission.
Never connect power line to it.
Transmission line
Shield wire
SV10B
SV10A
SV10C
SV9B
SV9A
SV9C
BC Board
CN38
1
3
1
CNTR
CN50
CN51
7654321123456
CN02
CN12
153
31
7
5
3
1
7
5
3
1
7
5
3
1
7
5
3
1
7
5
3
1
7
5
3
1
3
TR
3
CNVCC1
12
X2
X1
X30
X4
X3
X31
X6
X5
X32
X8
X7
X33
X10
X9
X34
X12
X11
X35
X21
}
DC 30V
654321654321
LEV3 LEV1
1
2
3
CNP1
1
2
3
CNP3
2
1
1
2
3
4
5
6
7
8
4
3
2
1
123
21
CN03
CN13
CN10
CN11
CN07 CN05
CN36
TH11
TH12
TH15
TH16
PS1
PS3
20 22V
TB02
M2
M1
CN26
CN27
CN28
CN29
CN30
CN31
TB01
220 240V
LEV1
7654321123456
CN35
TB01
SV6B
SV6A
SV6C
SVM
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
RELAY4 Board
SV5C
SV5A
SV5B
SV4B
SV4A
SV4C
SV3B
SV3A
SV3C
SV2B
SV2A
SV2C
CN32
CN33
CN34
CN39
3
1
SV7C
SV7A
SV7B
SV8C
SV8A
SV8B
SV1C
SV1A
SV1B
X14
X13
X36
X37
X15
X16
98765432116 15 1011121314
12345678910111213141516
X18
X17
X38
X39
X19
X20
CN52CN53
5731753175317533 31
Symbol explanation
Terminal block
(for Transmission)
TB02
Terminal block
(for power source)
TB01
NameSymbol
Solenoid valve
Solenoid valve
Solenoid valve
Solenoid valve
Expansion valve
Thermister sensor
Transformer
NameSymbol
SV1 10A
SV1 10B
SV1 10C
SVM
TR
TH11 16
LEV1,3
PS1,3 Pressure sensor
• CMB-P1010V-E
–24–
PE
EARTH
1
2
3
1
2
3
TB02
TB01
Name
Symbol
Terminal block
(for Transmission)
Solenoid valve
Solenoid valve
Solenoid valve
Solenoid valve
Terminal block
(for power source)
Pressure sensor
Expansion valve
Thermister sensor
Transformer
Name
SV1~13A
SV1~13B
SV1~13C
SVM
Symbol
TR
TH11~16
LEV1,3
PS1,3
M1
M2
DC 30V
}
Shield wire
Transmission line
Power source
}
L
N
Power source
~/N 220V~240V 50Hz
RELAY10
Board
BC Board
CN39
13
654321 1234567
CN51
CN50
135
CN12
13
CNOUT3
CNOUT1
1
3
5
7
1
3
5
7
1
3
5
7
1
3
5
7
1
3
5
7
1
3
5
7
1
3
5
7
1
3
5
7
7
5
3
1
1571571357
13
21
CNVCC2
3
CN42
X46
X47
X48
1
2
3
8
7
6
5
4
3
2
1
4
CNOUT2
CNOUT4
CN41
CN40
X41
X44
X40
X43
X42
X45
X20
X18
X19
X17
X39
X38
3
CNVCC1
12
X16
X15
X37
X36
X13
X14
X2
X1
X30
X4
X3
X31
X6
X5
X32
X8
X7
X33
X10
X9
X34
X12
X11
X35
X21
6
5432
1
6
5432
1
LEV3 LEV1
1
2
3
CNP1
1
2
3
CNP3
2
1
1
2
3
4
5
6
7
8
4
3
2
1
12321
CN03
CN02
CN13
CN10
CN11
CN07 CN05
33
CN34
CN33
1357
CN32
TH11
TH12
TH15
TH16
TR
TB02
CN38
CN26
CN27
CN28
CN29
CN30
CN31
TB01
CN35
3
1
CNTR
4
1
2
3
4
5
6
7
8
3
2
1
SV1B
SV1A
SV1C
SV2C
SV2A
SV2B
SV3C
SV3A
SV3B
SV4C
SV4A
SV4B
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
SV9C
SV9A
SV9B
SV10C
SV10A
SV10B
16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
14 13 12 11 101516 123456789
SV8B
SV8A
SV8C
SV7B
SV7A
SV7C
SVM
SV6C
SV6A
SV6B
SV11C
SV11A
SV11B
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
9
8
7
6
5
4
3
2
1
16
15
14
13
12
11
10
SV12C
SV12A
SV12B
SV13C
SV13A
SV13B
PS1
PS3
Note : 1. TB02 is transmission terminal block.
Never connect power line to it.
2. The initial set values of switch on CONT.B are
as follows : SW1 : 0, SW2:0.
20 22V 220 240V
CN36
• CMB-P1013V-E
–25–
PE
EARTH
1
2
3
1
2
3
TB02
TB01
Name
Symbol
Terminal block
(for Transmission)
Solenoid valve
Solenoid valve
Solenoid valve
Solenoid valve
Terminal block
(for power source)
Pressure sensor
Expansion valve
Thermister sensor
Transformer
Name
SV1~16A
SV1~16B
SV1~16C
SVM
Symbol
TR
TH11~16
LEV1,3
PS1,3
M1
M2
DC 30V
}
Shield wire
Transmission line
Power source
}
L
N
Power source
~/N 220V~240V 50Hz
CN39
13
654321 1234567
CN51
CN50
135
CN12
13
CNOUT3
CNOUT1
1
3
5
7
1
3
5
7
1
3
5
7
1
3
5
7
1
3
5
7
1
3
5
7
1
3
5
7
1
3
5
7
7
5
3
1
1571571357
13
21
CNVCC2
3
CN42
X46
X47
X48
1
2
3
8
7
6
5
4
3
2
1
4
CNOUT2
CNOUT4
CN41
CN40
X41
X44
X40
X43
X42
X45
X20
X18
X19
X17
X39
X38
3
CNVCC1
12
X16
X15
X37
X36
X13
X14
X2
X1
X30
X4
X3
X31
X6
X5
X32
X8
X7
X33
X10
X9
X34
X12
X11
X35
X21
6
5432
1
6
5432
1
LEV3 LEV1
1
2
3
CNP1
1
2
3
CNP3
2
1
1
2
3
4
5
6
7
8
4
3
2
1
12321
CN03
CN02
CN13
CN10
CN11
CN07 CN05
33
CN34
CN33
1357
CN32
TH11
TH12
TH15
TH16
TR
TB02
CN38
CN26
CN27
CN28
CN29
CN30
CN31
TB01
CN35
3
1
CNTR
4
1
2
3
4
5
6
7
8
3
2
1
SV1B
SV1A
SV1C
SV2C
SV2A
SV2B
SV3C
SV3A
SV3B
SV4C
SV4A
SV4B
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
SV9C
SV9A
SV9B
SV10C
SV10A
SV10B
16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
14 13 12 11 101516 123456789
SV8B
SV8A
SV8C
SV7B
SV7A
SV7C
SVM
SV6C
SV6A
SV6B
SV11C
SV11A
SV11B
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
9
8
7
6
5
4
3
2
1
16
15
14
13
12
11
10
SV12C
SV12A
SV12B
SV13C
SV13A
SV13B
PS1
PS3
Note : 1. TB02 is transmission terminal block.
Never connect power line to it.
2. The initial set values of switch on CONT.B are
as follows : SW1 : 0, SW2:0.
1
2
2
1
1
3
5
7
1
3
5
7
1
3
5
7
X57
X53
X52
X56
X55
CN45
CN44
CN43
X50
SV14C
SV14A
SV14B
SV15A
SV15B
SV16C
SV16A
SV16B
SV15C
X54
X51
X49
RELAY10
Board
BC Board
20 22V 220 240V
CN36
• CMB-P1016V-E
–26–
[5] Standard Operation Data
1 Cooling operation
Items
Power source
Ambient temp.
Indoor
Circulated water temp. (Intet)
Quantity
Indoor unit
Quantity in operation
Model
Main pipe
Condition
Piping
Branch pipe
Total piping length
Indoor unit fan notch
Refrigerant volume
Compressor volts / Frequency
Heat source unit
Heat source unit
V/Hz
DB/WB
°C
Q’ty
–
m
–
kg
V
V/Hz
A
PQRY-P200YMF-B PQRY-P250YMF-B
380-415V/50Hz 380-415V/50Hz
27.0/19.5 27.0/19.5
30 30
44
44
63 63 50 25 125 40 63 25
55
55555555
25 25
Hi Hi Hi Hi Hi Hi Hi Hi
11.4 12.2
380 415 380 415
270/77 270/77 340/98 340/98
14.0 12.8 18.8 17.2
Indoor unit
BC controller (1, 3)
Oil return
LEV opening
High pressure/Low pressure
BC controller liquid/Intermediate
Pressure
Discharge (TH1)
Accumulator
Heat
Suction (Comp)
source
unit
CS circuit (TH2)
Liquid level
Sectional temperature
Shell bottom (Comp)
Indoor
unit
LEV inlet
Heat exchanger outlet
Inlet
Outlet
Upper (TH4)
Lower (TH3)
Pulse
kg/cm
(MPa)
˚C
330 460 430 300 410 330 460 300
2000 240 2000 260
180 330
22.0/5.3 21.5/5.0
2
G
(2.20/0.52) (2.15/0.50)
20.9/20.9 20.4/20.4
(2.09/2.09) (2.04/2.04)
101 99.0
77
10 10
12 12
4.9 4.3
30 30
23.5 23.5
70 78
26 30
15 15
αOC
0.23 0.23
–27–
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