• OUTDOOR CONTROLLER BOARD (C.B) has been changed.
(Corresponding to the additional combination of PEFY-P·VMA-E.)
2
2SAFETY PRECAUTION
2-1. CAUTIONS RELATED TO NEW REFRIGERANT
Cautions for units utilizing refrigerant R410A
Use new refrigerant pipes.
Avoid using thin pipes.
Make sure that the inside and outside of refrigerant piping is clean and it has no contaminants
such as sulfur, oxides, dirt, shaving particles, etc,
which are hazard to refrigerant cycle.
In addition, use pipes with specified thickness.
Contamination inside refrigerant piping can cause deterioration of refrigerant oil etc.
Store the piping to be used indoors during
installation, and both ends of the piping sealed
until just before brazing. (Leave elbow joints, etc.
in their packaging.)
If dirt, dust or moisture enters into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of compressor.
The refrigerant oil applied to flare and flange
connections must be ester oil, ether oil or
alkylbenzene oil in a small amount.
If large amount of mineral oil enters, that can cause deterioration of refrigerant oil etc.
Charge refrigerant from liquid phase of gas
cylinder.
If the refrigerant is charged from gas phase, composition
change may occur in refrigerant and the efficiency will be
lowered.
Do not use refrigerant other than R410A.
If other refrigerant (R22 etc.) is used, chlorine in refrigerant can cause deterioration of refrigerant oil etc.
Use a vacuum pump with a reverse flow check
valve.
Vacuum pump oil may flow back into refrigerant cycle and
that can cause deterioration of refrigerant oil etc.
Use the following tools specifically designed for
use with R410A refrigerant.
The following tools are necessary to use R410A refrigerant.
If dirt, dust or moisture enters into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of compressor.
Do not use a charging cylinder.
If a charging cylinder is used, the composition of refrigerant will change and the efficiency will be lowered.
Ventilate the room if refrigerant leaks during
operation. If refrigerant comes into contact with
a flame, poisonous gases will be released.
3
[1] Cautions for service
(1) Perform service after recovering the refrigerant left in unit completely.
(2) Do not release refrigerant in the air.
(3) After completing service, charge the cycle with specified amount of refrigerant.
(4) When performing service, install a filter drier simultaneously.
Be sure to use a filter drier for new refrigerant.
[2] Additional refrigerant charge
When charging directly from cylinder
· Check that cylinder for R410A on the market is syphon type.
· Charging should be performed with the cylinder of syphon stood vertically. (Refrigerant is charged from liquid phase.)
Unit
Gravimeter
[3] Service tools
Use the below service tools as exclusive tools for R410A refrigerant.
No.
Gauge manifold· Only for R410A
1
Charge hose· Only for R410A
2
Electronic scale
3
Gas leak detector· Use the detector for R134a, R407C or R410A.
4
Adaptor for reverse flow check· Attach on vacuum pump.
5
Refrigerant charge base
6
Refrigerant cylinder· Only for R410A · Top of cylinder (Pink)
7
Refrigerant recovery equipment
8
Tool nameSpecifications
· Use the existing fitting
· Use high-tension side pressure of 5.3MPa·G or over.
· Use pressure performance of 5.09MPa·G or over.
· Cylinder with syphon
specifications
—
—
—
. (UNF1/2)
2-2. PRECAUTIONS FOR SALT PROOF TYPE "-BS" MODEL
Although "-BS" model has been designed to be resistant to salt damage, observe the following precautions to maintain the
performance of the unit.
1. Avoid installing the unit in a location where it will be exposed directly to seawater or sea breeze.
2. If the cover panel may become covered with salt, be sure to install the unit in a location where the salt will be washed away by
rainwater. (If a sunshade is installed, rainwater may not clean the panel.)
3. To ensure that water does not collect in the base of the outdoor unit, make sure that the base is level, not at angle. Water
collecting in the base of the outdoor unit could cause rust.
4. If the unit is installed in a coastal area, clean the unit with water regularly to remove any salt build-up.
5. If the unit is damaged during installation or maintenance, be sure to repair it.
6. Be sure to check the condition of the unit regularly.
7. Be sure to install the unit in a location with good drainage.
4
Cautions for refrigerant piping work
New refrigerant R410A is adopted for replacement inverter series. Although the refrigerant piping work for R410A is same
as for R22, exclusive tools are necessary so as not to mix with different kind of refrigerant. Furthermore as the working
pressure of R410A is 1.6 times higher than that of R22, their sizes of flared sections and flare nuts are different.
1 Thickness of pipes
Because the working pressure of R410A is higher compared to R22, be sure to use refrigerant piping with thickness
shown below. (Never use pipes of 0.7 mm or below.)
Diagram below: Piping diameter and thickness
Nominal
dimensions(inch)
1/4
3/8
1/2
5/8
3/4
Outside
diameter
6.35
9.52
12.70
15.88
19.05
(mm)
Thickness
R410AR22
0.8
0.8
0.8
1.0
—
(mm)
0.8
0.8
0.8
1.0
1.0
2 Dimensions of flare cutting and flare nut
The component molecules in HFC refrigerant are smaller compared to conventional refrigerants. In addition to that,
R410A is a refrigerant, which has higher risk of leakage because its working pressure is higher than that of other refrigerants. Therefore, to enhance airtightness and intensity, flare cutting dimension of copper pipe for R410A has been
specified separately from the dimensions for other refrigerants as shown below. The dimension B of flare nut for R410A
also has partly been changed to increase intensity as shown below. Set copper pipe correctly referring to copper pipe
flaring dimensions for R410A below. For 1/2 and 5/8 inch, the dimension B changes.
Use torque wrench corresponding to each dimension.
Dimension A
Flare cutting dimensions
Nominal
dimensions(inch)
1/4
3/8
1/2
5/8
3/4
Outside
diameter
6.35
9.52
12.70
15.88
19.05
Dimension A
R410AR22
9.1
13.2
16.6
19.7
—
+0
( )
-0.4
9.0
13.0
16.2
19.4
23.3
(mm)
Flare nut dimensions
Nominal
dimensions(inch)
1/4
3/8
1/2
5/8
3/4
Outside
diameter
6.35
9.52
12.70
15.88
19.05
3 Tools for R410A (The following table shows whether conventional tools can be used or not.)
Tools and materialsUseR410A toolsCan R22 tools be used?
Gauge manifold
Bender
Pipe cutter
Welder and nitrogen gas cylinder
Refrigerant charging scale
Vacuum gauge or thermistor vacuum gauge and
vacuum valve
Charging cylinder
: Prepare a new tool. (Use the new tool as the tool exclusive for R410A.)
: Tools for other refrigerants can be used under certain conditions.
: Tools for other refrigerants can be used.
Air purge, refrigerant charge
and operation check
Gas leak check
Refrigerant recovery
Refrigerant charge
Apply to flared section
Prevent compressor malfunction
when charging refrigerant by
spraying liquid refrigerant
Prevent gas from blowing out
when detaching charge hose
Vacuum drying and air
purge
Flaring work of piping
Bend the pipes
Cut the pipes
Weld the pipes
Refrigerant charge
Check the degree of vacuum. (Vacuum
valve prevents back flow of oil and refrigerant to thermistor vacuum gauge)
Refrigerant charge
Tool exclusive for R410A
Tool exclusive for R410A
Tool for HFC refrigerant
Tool exclusive for R410A
Tool exclusive for R410A
Ester oil, ether oil and
alkylbenzene oil (minimum amount)
Tool exclusive for R410A
Tool exclusive for R410A
Tools for other refrigerants can
be used if equipped with adopter for reverse flow check
Tools for other refrigerants
can be used by adjusting
flaring dimension
Tools for other refrigerants can be used
Tools for other refrigerants can be used
Tools for other refrigerants can be used
Tools for other refrigerants can be used
Tools for other refrigerants
can be used
• A handy remote controller for use in conjunction
with the Melans centralized management system.
• Addresses setting is not necessary.
• Addresses must be set.
*1. PUMY-P·YHMB is connectable to Fresh Air type indoor unit.
It is possible to connect 1 Fresh Air type indoor unit to 1 outdoor unit. (1:1 system)
Operating temperature range (outdoor temperature) for fresh air type indoor units differ from other indoor units.
Refer to 3-2(3).
*2. When the indoor unit of Fresh Air type is connected with the outdoor unit, the maximum connectable total indoor unit
capacity is 110% (100% in case of heating below -5:[23˚F]).
In case of connecting all fresh air type indoor unit PEFY-P-VHM-E-F, only one indoor unit can be connected
with one PUMY.
Details on foundation work, duct work, insulation work, electrical wiring, power source switch, and other items
shall be referred to the Installation Manual.
10 to 46˚CD.B. (50 to 115˚FD.B.) : in case of connecting PKFY-P15/P20/P25 type indoor unit.
15 ~ 27˚C (59 ~ 81˚F)
-15 ~ 15˚C (5 ~ 59˚F)
50 ~ 130% of outdoor unit capacity
11.2
9,600
38,200
10,000
3.34
15.4-14.8-14.1, 15.4
3.35
12.5
10,800
42,700
3.66
16.9-16.2-15.5, 16.9
3.42
P15 ~ P125/1 ~ 8
49/51
ø9.52 (ø3/8") Liquid
ø15.88 (ø5/8") Gas
14.0
12,000
47,800
12,500
4.32
20.0-19.1-18.3, 20.0
3.24
16.0
13,800
54,600
4.33
20.0-19.1-18.3, 20.0
3.69
P15 ~ P140/1 ~ 10
50/52
ø9.52 (ø3/8") Liquid
ø15.88 (ø5/8") Gas
1,350 × 950 × 330
53-3/16" × 37-7/16" × 13"
129 (284 lb)
Inverter scroll hermetic comp.
2.2
-
FV50S × 2.3 L
100
1667
3532
0Pa
Propeller fan × 2
DC-control, Direct-driven by motor
0.06 × 2
R410A × 8.5kg (19 lb)
Joint: CMY-Y62-G-E
Header:CMY-Y64/68-G-E
1,350 × 950 × 330
53-3/16" × 37-7/16" × 13"
129 (284 lb)
Salt-resistant cross fin & copper tube
Inverter scroll hermetic comp.
2.9
-
FV50S × 2.3 L
100
1667
3532
0Pa
Propeller fan × 2
DC-control, Direct-driven by motor
0.06 × 2
R410A × 8.5kg (19 lb)
Joint: CMY-Y62-G-E
Header:CMY-Y64/68-G-E
* 1 Nominal cooling conditions
Note :
Indoor :
Outdoor :
Pipe length :
Level difference :
27˚CDB/19˚CWB (81˚FDB/66˚FWB)
35˚CDB (95˚FDB)
7.5 m (24-9/16 ft)
0 m (0 ft)
* 2 Nominal cooling conditions
27˚CDB/19.5˚CWB (81˚FDB/67˚FWB)
35˚CDB (95˚FDB)
5 m (16-3/8 ft)
0 m (0 ft)
* 3 Nominal heating conditions
Unit converter
20˚CDB (68˚FDB)
7˚CDB/6˚CWB (45˚FDB/43˚FWB)
7.5 m (24-9/16 ft)
0 m (0 ft)
* Nominal conditions * 1, * 3 are subject to JIS B8615-1.
* Due to continuing improvement, above specifications may be subject to change without notice.
kcal/h = kW × 860
Btu/h = kW
× 3,412
cfm = m
3
/min x 35.31
lb= kg/0.4536
*Above specification data is
subject to rounding variation.
SPECIFICATIONS
PUMY-P125VHMB(-BS)
Model
PUMY-P125VHMBR1(-BS)
PUMY-P125VHMBR2(-BS)
Power source
Cooling capacity
(Nominal)
Temp. range of
cooling
Power input
Current input
COP (kW/kW)
Indoor
Outdoor
Heating capacity
(Nominal )
Temp. range of
heating
Indoor unit
connectable
Noise level
Diameter of
refrigerant pipe
Power input
Current input
COP (kW/kW)
Indoor temp.
Outdoor temp.
Total capacity
Model/Quantity
(measured in anechoic room)
Liquid (High press.)
Gas (Low press.)
External finish
External dimension H
×W×
D
Net weight
Heat exchanger
Compressor
FAN
Ty pe
Manufacturer
Starting method
Motor output
Case heater
Lubricant
Air flow rate
HIC circuit
Protection
Defrosting method
Refrigerant
Standard
attachment
Optional parts
External static press.
Ty pe× Quantity
Control, Driving mechanism
Motor output
(HIC: Heat Inter-Changer)
High pressure protection
Inverter circuit (COMP./FAN)
Compressor
Fan motor
×
Original charge
Ty pe
Control
Document
Accessory
Remark
kW
*
1
*
1
kcal/h
*
1
Btu/h
*
2
kcal/h
kW
A
W.B .
D.B .
*
3
kW
*
*
3
kcal/h
3
Btu/h
kW
A
D.B .
W.B .
dB <A>
mm (in.)
mm (in.)
mm
in.
kg (lb)
Salt-resistant cross fin & copper tubeSalt-resistant cross fin & copper tube
High pressure sensor, High pressure switch 4.15 MPa
Over-heat protection, Over-current protection
Over-heat protection, Voltage protection
Auto-defrost mode (Reversed refrigerant circle)
LEV circuit
Installation Manual
Grounded lead wire x 2
Details on foundation work, duct work, insulation work, electrical wiring, power source switch, and other items
shall be referred to the Installation Manual.
10 to 46˚CD.B. (50 to 115˚FD.B.): in case of connecting PKFY-P15/P20/P25 type indoor unit.
15 ~ 27˚C (59 ~ 81˚F)
-15 ~ 15˚C (5 ~ 59˚F)
50 ~ 130% of outdoor unit capacity
11.2
9,600
38,200
-
3.30
5.28-5.02-4.84
3.39
12.5
10,800
42,700
3.63
5.81-5.52-5.32
3.44
P15 ~ P125/1 ~ 8
49/51
ø9.52 (ø3/8") Flare
ø15.88 (ø5/8") Flare
14.0
12,000
47,800
12,500
4.27
6.83-6.49-6.26
3.28
16.0
13,800
54,600
4.29
6.87-6.52-6.29
3.73
P15 ~ P140/1 ~ 10
50/52
ø9.52 (ø3/8") Flare
ø15.88 (ø5/8") Flare
1,350 × 950 × 330
53-3/16" × 37-7/16" × 13"
142 (313)
Salt-resistant cross fin & copper tube
Inverter scroll hermetic comp.
1.9
-
FV50S × 2.3 L
100
1667
3532
0Pa
Propeller fan × 2
DC-control, Direct-driven by motor
0.06 × 2
R410A × 8.5kg (19 lb)
Joint: CMY-Y62-G-E
Header:CMY-Y64/68-G-E
1,350 × 950 × 330
53-3/16" × 37-7/16" × 13"
142 (313)
Salt-resistant cross fin & copper tube
Inverter scroll hermetic comp.
2.4
-
100
1667
3532
0Pa
Propeller fan × 2
DC-control, Direct-driven by motor
0.06 × 2
R410A × 8.5kg (19 lb)
Joint: CMY-Y62-G-E
Header:CMY-Y64/68-G-E
* 1 Nominal cooling conditions
Note :
Indoor :
Outdoor :
Pipe length :
Level difference :
27˚CDB/19˚CWB (81˚FDB/66˚FWB)
35˚CDB (95˚FDB)
7.5 m (24-9/16 ft)
0 m (0 ft)
* 2 Nominal cooling conditions
27˚CDB/19.5˚CWB (81˚FDB/67˚FWB)
35˚CDB (95˚FDB)
5 m (16-3/8 ft)
0 m (0 ft)
* 3 Nominal heating conditions
Unit converter
20˚CDB (68˚FDB)
7˚CDB/6˚CWB (45˚FDB/43˚FWB)
7.5 m (24-9/16 ft)
0 m (0 ft)
* Nominal conditions * 1, * 3 are subject to JIS B8615-1.
* Due to continuing improvement, above specifications may be subject to change without notice.
kcal/h = kW × 860
Btu/h = kW
× 3,412
cfm = m
3
/min × 35.31
lb= kg/0.4536
*Above specification data is
subject to rounding variation.
Model
Power source
Cooling capacity
(Nominal)
Temp. range of
cooling
Heating capacity
(Nominal)
Temp. range of
heating
Indoor unit
connectable
Noise level
(measured in anechoic room)
Diameter of
refrigerant pipe
External finish
External dimension H
×W×
D
Net weight
Heat exchanger
Compressor
FAN
HIC circuit
(HIC: Heat Inter-Changer)
Protection
Defrosting method
Refrigerant
Standard
attachment
Optional parts
Remark
Power input
Current input
COP (kW/kW)
Indoor
Outdoor
Power input
Current input
COP (kW/kW)
Indoor temp.
Outdoor temp.
Total capacity
Model/Quantity
Liquid (High press.)
Gas (Low press.)
Ty pe
Manufacturer
Starting method
Motor output
Case heater
Lubricant
Air flow rate
External static press.
Ty pe
×
Quantity
Control, Driving mechanism
Motor output
High pressure protection
Inverter circuit (COMP./FAN)
Compressor
5-1. COOLING AND HEATING CAPACITY AND CHARACTERISTICS
5-1-1. Method for obtaining system cooling and heating capacity:
To obtain the system cooling and heating capacity and the electrical characteristics of the outdoor unit, first add up the ratings
of all the indoor units connected to the outdoor unit (see table below), and then use this total to find the standard capacity with
the help of the tables on 5-2. STANDARD CAPACITY DIAGRAM.
(1) Capacity of indoor unit
17
Model 20
22
Model 2528Model 3236Model 4045Model 5056Model 6371Model 7180Model 8090Model 100
112
Model 125
140
Model 140
160
Model Number for indoor unit
Model Capacity
(2) Sample calculation
Model 15
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-P125YHMB
• Indoor unit PKFY-P25VBM-E o 2 , PLFY-P50VLMD-E 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
3 The following figures are obtained from the 168 total capacity row of the standard capacity diagram (5-2.):
Capacity (kW)
CoolingHeatingCoolingHeatingCoolingHeating
A 14.60B 16.33
Outdoor unit power consumption (kW)
4.343.956.596.01
Outdoor unit current (A)/400V
5-1-2. Method for obtaining the heating and cooling capacity of an indoor unit:
(1) The capacity of each indoor unit (kW) = the capacity
A
(or B)
o
total model capacity of all indoor units
model capacity
(2) Sample calculation (using the system described above in 5-1-1. (2) ):
During cooling:
• The total model capacity of the indoor unit is:
2.8 o 2 + 5.6 o 2=16.8kW
Therefore, the capacity of PKFY-P25VBM-E and
PLFY-P50VLMD-E will be calculated as follows
by using the formula in 5-1-2. (1):
Model 25=14.6 o = 2.43kW
Model 50=14.6 o = 4.87kW
2.8
16.8
5.6
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-P25VBM-E and
PLFY-P50VLMD-E will be calculated as follows by
using the formula in 5-1-2. (1):
(1) The performance curve charts (Figure 1, 2) show the change ratio of capacity and input (power consumption) according to the
indoor and outdoor temperature condition when defining the rated capacity (total capacity) and rated input under the standard
condition in standard piping length (5 m) as “1.0”.
• Standard conditions:
Rated cooling capacity
Rated heating capacity
• Use the rated capacity and rated input given in “5-2.”.
• The input is the single value on the side of the outdoor unit; the input on the sides of each indoor unit must be added to
obtain the total input.
(2) The capacity of each indoor unit may be obtained by multiplying the total capacity obtained in (1) by the ratio between the
individual capacity at the rated time and the total capacity at the rated time.
Individual capacity under stated conditions = total capacity under the stated conditions o
5-3-2. Correcting Capacity for Changes in the Length of Refrigerant Piping
(1) During cooling, obtain the ratio (and the equivalent piping length) of the outdoor units rated capacity and the total in-use
indoor capacity, and find the capacity ratio corresponding to the standard piping length from Figure 3. Then multiply by
the cooling capacity from Figure 1 to obtain the actual capacity.
(2) During heating, find the equivalent piping length, and find the capacity ratio corresponding to standard piping length from
Figure 3. Then multiply by the heating capacity from Figure 2 to obtain the actual capacity.
(1) Capacity CORRECTION CURVE (Figure 3)
Cooling
100
Heating
95
Heating P100, 125, 140
models
90
85
Cooling P100 model
80
Capacity ratio [%]
75
Cooling P125 model
Cooling P140 model
70
5 101520253035404550556065707580
[m]
Corrected pipe length
(2) Method for Obtaining the Equivalent Piping Length
Equivalent length for type P100·125·140 = (length of piping to farthest indoor unit) + (0.3 o number of bends in the piping) (m)
Length of piping to farthest indoor unit: type P100~P140.....80m
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.
Connector<To N.F. Board CN52C>
(Symbol of Board is CNLVB)
SS
Connector<Connection For Option>
CN3D
Connector<Connection For Option>
CN3S
Connector<Connection For Option>
CN3N
Connector<Connection For Option>
CN51
Connector<Connection For Option>
LED1,LED2
F1,F2
X501~505
TP1
LED<Operation Inspection Display>
LED3
LED<Power Supply to Main Microprocessor>
Fuse<T6,3AL250V>
Relay
M-NET Power Circuit Board
ConnectionTerminal<Ground>
Centralized Control Line>
MULTI. B.
MF1
1
MS
3~
MF2
1
MS
3~
X505
52C
13
(BLK)
TB3
2
RED
M1
M2
RED
S
TO INDOOR UNIT
CONNECTING WIRES
DC 30V(Non-polar)
TB7
2
YLW
M1
M2
YLW
S
FOR CENTRALIZED
CONTROL
DC 30V(Non-polar)
POWER SUPPLY
~/N 230V 50Hz
TB1
L
N
Cautions when Servicing
•
WARNING: When the main supply is turned off, the voltage [340 V] in the main capacitor will drop to 20 V in approx. 2 minutes (input voltage:
!
230 V). When servicing, make sure that LED1, LED2 on the outdoor circuit board goes out, and then wait for at least 1 minute.
• Components other than the outdoor board may be faulty: Check and take corrective action, referring to the service manual.
Do not replace the outdoor board without checking.
NOTES:
• Refer to the wiring diagrams of the indoor units for details on wiring of each indoor unit.
Self-diagnosis function
The indoor and outdoor units can be diagnosed automatically using the self-diagnosis switch (SW1) and LED1, LED2 (LED indication) found on
the multi-controller of the outdoor unit.
LED indication : Set all contacts of SW1 to OFF.
• During normal operation
The LED indicates the drive state of the controller in the outdoor unit.
Bit
Indication
• When fault requiring inspection has occurred, the LED alternately indicates the inspection code
and the location of the unit in which the fault has occurred.
1
Compressor
operated
2
52C321S44SV15(SV2)
67
—
63L
t° t° t°
t°
2112
TH4
(WHT)
113
63L
(RED)
3
63H
(YLW)
F1
F2
X501
X502
SV1
1
3
1212
(WHT)
TABP2
RED
—
BLK
IPM
RED
(WHT)
+
TABV
TAB U
RED
WHT
V
U
MS
3~
DCL
+
-
ACTM
Always lit
SS
L1 L2
CN3D
(WHT)
131313
LED3
CNAC
(RED)
2
CNDC
(PIN)
1
3
-
+
TAB W
BLK
W
MC
8
CN3S
CN3N
(RED)
(BLU)
16
1
CN51
(WHT)
CN2
(WHT)
1
CNS2
CNS1
(YLW)
(RED)
1
1
2
2
22
DS3
+
2
DS2
+
TAB N1
U
BLK
TAB N2
WHT
4
16
RED
P
N1
N2
WHT
Io
is the switch position.
CNLVB
(RED)
7
7
TABT
TABS
TABP1
5
CN4
(WHT)
1
2
SWU2 SWU1
2
+
2
CN41
(WHT)
1
4
BLU
WHT
RED
1
2
2
CN40
(WHT)
4
SW5
LED1
3
1
4
1
3
1
(RED)
CNAC2
(WHT)
CNAC1
SW6
SW7SW3SW4
LED2
CN102
(WHT)
LO
L I
RED
SW2SW8SW1
4
1
WHT
52C
U
NO
N I
BLU
+1 MODEL SELECT 1:ON 0:OFF
MODELS
PUMY-P100VHMB
PUMY-P125VHMB
PUMY-P140VHMB
[Example]
When the compressor and
SV1 are turned on during cooling
operation.
• WARNING: When the main supply is turned off, the voltage [570 V] in the main capacitor will drop to 20 V in approx. 5 minutes
!
(input voltage: 400 V). When servicing, make sure that LED1 and LED2 on the outdoor circuit board goes out, and then wait for
at least 5 minute.
• Components other than the outdoor board may be faulty: Check and take corrective action, referring to the service manual.
Do not replace the outdoor board without checking.
NOTES:
• Refer to the wiring diagrams of the indoor units for details on wiring of each indoor unit.
Self-diagnosis function
The indoor and outdoor units can be diagnosed automatically using the self-diagnosis switch
(SW1), LED1 and LED2 (LED indication) found on the multi-controller of the outdoor unit.
LED indication : Set all contacts of SW1 to OFF.
• During normal operation
The LED indicates the drive state of the controller in the outdoor unit.
Bit
Indication
• When fault requiring inspection has occurred, the LED alternately indicates the inspection code
and the location of the unit in which the fault has occurred.
1
Compressor
operated
2
52C321S44SV15(SV2)6—
7
—
63L
t° t° t° t
2112
TH4
(WHT)
113
(RED)
3
63H
(YLW)
X502
SV1
1212
3
(WHT)
7
3
1
13
CN7
(WHT)
2
CN4
(WHT)
1
CN5
2
(RED)
1
X52A
CNAC1
1313
(WHT)
63L
X501
1
(WHT)
(WHT)
F1
F2
SS
2
CN2
TB-P2
CN3D
CN3S
(WHT)
(RED)
131313
LED3
CNS1
(RED)
1
CNAC
(RED)
7
+
-
+
-
+
++
CB1
2
TB-C1
CB2
1
+
CN3N
(BLU)
CN2
(WHT)
CNS2
(YLW)
1
22
1
CN51
(WHT)
2
TB-V
TB-L3
TB-L2
TB-L1
7
TB-W
TB-U
TB-N1
CK
CNCT
(RED)
7
+
CNAC1
(WHT)
1
3
GD3GD1
BLK
2
CNDC
(PNK)
3
1
3
2
WHT
[Example]
When the compressor and
SV1 are turned on during cooling
operation.
12345678
8
Always lit
SWU2 SWU1
5
CN4
(WHT)
2
1
2
CN41
(WHT)
4
BLK
WHT
RED
BLK
WHT
RED
3
22
1
2
+
U
-
1
CNL
(BLU)
WHT
is the switch position.
SW5
+
1
LED1
CN40
(WHT)
1
1
4
MC
W
V
MS
3~
U
BLK
3
1
CNAC2
(RED)
LO1
LO2
LO3
NO
SW6
SW2SW8SW1
SW7SW3SW4
LED2
CN102
(WHT)
1
4
4
M-NET P.B.
WHT
BLK
L3-A2
L3-OU
Conv.B.
CN7
(WHT)
L1-A1
RED
RED
RED
WHT
BLK
BLU
ACL4
WHT
L2-OU
L1-IN
BLU
4
1
(WHT)
5
L2-A2
CN2
(WHT)
CN1
RED
N-IN
TP1
2
L1-OU
ACL1
ACL2
ACL3
4
BLK
1
RED
L1-A2
CK-OU
BLK
28
8
NECESSARY CONDITIONS FOR SYSTEM CONSTRUCTION
8-1. TRANSMISSION SYSTEM SETUP
3
2
4
1
5
0
6
9
7
8
3
2
4
1
5
0
6
9
7
8
005
Remote
3
2
4
1
5
0
6
9
7
8
3
2
4
1
5
004
003
0
6
9
7
8
3
2
4
1
5
0
6
9
7
8
3
2
4
1
5
0
6
9
7
8
Remote
Remote
105
controller
controller
controller
3
2
4
1
5
0
6
9
7
8
3
2
4
1
5
0
6
9
7
8
3
2
4
1
5
0
6
9
7
8
3
2
4
1
5
0
6
9
7
8
3
2
4
1
5
0
6
9
7
8
3
2
4
1
5
0
6
9
7
8
3
2
4
1
5
0
6
9
7
8
3
2
4
1
5
0
6
9
7
8
Indoor unitIndoor unitIndoor unitIndoor unitIndoor unit