12. PARTS LIST ··················································122
• Please void OC183
REVISED EDITION-D.
···46
Model name
indication
OUTDOOR UNIT
1TECHNICAL CHANGE
CHANGE POINTS
CONTENTS
OF
CHANGE
Outdoor unit Service Ref.
Base outdoor unit Service Ref.
PUMY-
71VM
2
71VM1
125VM2
125VM1
125YM1
125YM
FAN MOTOR CAPACITOR
FAN MOTOR
COMPRESSOR
HIGH PRESSURE SENSOR
SEPARATOR ASSY
MULTI CONTROLLER BOARD
PUMY-125YM spare compressor is changed to EHV46FAK from EHV46FAD.
3.5+ 3.0+
PA6V40-UBPU6V60-GB
PA6V40-UAPU6V60-GA
PA6V60-UCPU6V60-GB
PA6V60-UBPU6V60-GA
PA6V60-UEPU6V60-GD
PA6V60-UDPU6V60-GC
CHV253FAAEHV33FAG
EHV46FAAEHV46FAG
EHV46FADEHV46FAK
Change of manufacturer
Substrate connection
wiring is attached.
Change in accordance with high pressure sensor.
Change in accordance with high pressure sensor.
Substrate connection
wiring is not provided.
( )( )
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Revision:
"12. PARTS LIST" has been modified on page 129, 131 and 133
Page
129
129
131
131
133
133
FUNCTIONAL PARTS
No.3
THERMISTOR (OUTDOOR
TEMPERATURE DETECTION)
FUNCTIONAL PARTS
No.19
THERMISTOR (LOW PRESSURE
SATURATED TEMPERATURE
DETECTION)
FUNCTIONAL PARTS
No.21
THERMISTOR (LOW PRESSURE
SATURATED TEMPERATURE
DETECTION)
FUNCTIONAL PARTS
No.22
THERMISTOR (OUTDOOR
TEMPERATURE DETECTION)
FUNCTIONAL PARTS
No.20
THERMISTOR (LOW PRESSURE
SATURATED TEMPERATURE
DETECTION)
FUNCTIONAL PARTS
No.21
THERMISTOR (OUTDOOR
TEMPERATURE DETECTION)
Service Ref.Revise pointIncorrectCorrect
PUMY-71VM/VM
1/VM2R01 E29 202R01 E31 202
PUMY-71VM/VM
1/VM2R01 E31 202R01 E29 202
PUMY-125VM/VM
1/VM2R01 E31 202R01 E29 202
PUMY-125VM/VM
1/VM2R01 E29 202
R01 E31 202
PUMY-125YM/YM1/YMAR01 E31 202R01 E29 202
PUMY-125YM/YM
1/YMA
R01 E29 202R01 E31 202
Change of the service parts. Refer to the parts list for the details.
OC183 REVISED EDITION-D
PUMY-125VMA
•Partial Change on Electrical Wiring:
Change of reactor (DCL).
Only 2 reactor (DCL1,2) are adopted. (Previously 4)
Indoor unit that can connected
Available capacity of indoor unit
Total capacity of units that can be included system
(50-130% of outdoor unit capacity)
2-3-1. System layout
One outdoor unit using branching connectors can be connected to a maximum of five or eight indoor units.
■ Examples of a branching method
2-3-2. Notes on the connection of indoor and outdoor units
Note: When the total capacity of indoor units exceeds the capacity of the outdoor unit (more than 100%), the rated power of
each indoor unit will be less when they are running simultaneously.
2-3-3. Capacity for outdoor unit
(1) Branching pipe
Model
CMY-Y62C-E
Branching connector
(2) Examples of System Construction (All models)
Piping method
Indoor units
CMY-Y64-C
CMY-Y68
CMY-S65
Outdoor unit
NUMBER OF BRANCHING POINTS
2
4
8
5
Total capacity of
indoor units.
Piping method
90
5
Indoor units
Outdoor unit
Total capacity of
indoor units.
160
3SPECIFICATIONS
Item
Rated Cooling capacity
Rated power consumption
Operating current
Operating power factor
Starting current
Rated Heating capacity
Rated power consumption
Operating current
Operating power factor
Standard performance
External finish (Munsell colour-coded markings)
Dimensions H o W o D (Note 1)
Heat exchanger type
Compressor
Fan
Defrost method
Pressure gauge
Protection
Noise level
Weight
Refrigerant pipe size
Refrigerant
Note 1: External dimensions in parentheses indicate the dimensions of protruding parts.
Note 2: Rating conditions (JIS B 8615)
Heating Cooling
Starting current
Rated power supply
Model
Type o quantity
Starting method
Motor output
Capacity control
Daily cooling capacity
Heater <crankcase>
Refrigerating oil (Model)
Type o quantity
Airflow
Motor output
High pressure protection
Compressor protection
Blower protection
devices
Frequency converter circuit
Type o charge amount
Control method
Cooling : Indoor : D.B. 27: W.B. 19.5:
: Outdoor : D.B. 35: W.B. 24:
Heating : Indoor : D.B. 21:
: Outdoor : D.B. 7: W.B. 6:
Service Ref
Gas
Liquid
kcal/h
kW
A
%
A
kcal/h
kW
A
%
A
mm
kW
%
Legal tons
W
L
k/min
W
dB
kg
[ mm
[ mm
kg
7,100
3.50
17.5-16.7-16.0
91
15.0
8,000
3.65
18.2-17.4-16.7
91
15.0
Single phase 220-230-240V 50Hz
Molten-galvanized steel plate (with polyester coating), ivory white <5Y 8/1>
1280 o 900 o 320 (+30) 1280 o 1020 o 350 (+30)
CHV253FAA
Fully enclosed type o 1
Frequency converter start
2.6
Cooling 27-100% Heating 24-100%
1.1 (110Hz)
25-28-30
1.07 (MS56)
Propeller (direct) o 2
95
40 o 2
High pressure pressure sensor (3.0MPa)
Overheating, Over current protection
52
93
15.88
9.52
R22 o 5
PUMY-125VM PUMY-71VM Unit
12,500
6.57
34.9-33.5-32.2
85
22.0
14,000
6.10
32.6-31.2-29.9
85
22.0
Crossover fin
EHV46FAA
3.5
Cooling 27-100% Heating 25-100%
1.9 (104Hz)
38-41-45
1.4 (MS32)
90
60 o 2
Reverse cycle
—
Thermal switch
Thermal switch
54
130
19.05
9.52
R22 o 8.5
Expansion valve
6
Item
Service Ref
Rated Cooling capacity
Rated power consumption
Operating current
Operating power factor
Starting current
Rated Heating capacity
Rated power consumption
Operating current
Operating power factor
Standard performance
Heating Cooling
Starting current
Rated power supply
External finish (Munsell colour-coded markings)
Dimensions H o W o D (Note 1)
Unit
kcal/h
kW
A
%
A
kcal/h
kW
A
%
A
mm
7,100
3.50 / 3.63
17.5-16.7-16.0 / 18.1
91
15.0
8,000
3.65 / 3.53
18.2-17.4-16.7 / 17.6
91
15.0
Single phase 220-230-240V 50Hz / 220V 60Hz
Molten-galvanized steel plate (with polyester coating), ivory white <5Y 8/1>
1280 o 900 o 320 (+30) 1280 o 1020 o 350 (+30)
Heat exchanger type
Model
Type o quantity
Starting method
Motor output
Capacity control
Compressor
Daily cooling capacity
Heater <crankcase>
Refrigerating oil (Model)
Type o quantity
Airflow
Fan
Motor output
kW
%
Legal tons
W
L
k/min
W
Cooling 27-100% Heating 24-100%
CHV253FAA
Fully enclosed type o 1
Frequency converter start
2.6
1.1 (110Hz)
—
1.07 (MS56)
Propeller (direct) o 2
95
40 o 2
Defrost method
Pressure gauge
High pressure protection
High pressure pressure sensor (3.0MPa)
Compressor protection
Blower protection
Protection
devices
Frequency converter circuit
Noise level
Weight
Refrigerant pipe size
Refrigerant
Type o charge amount
Control method
Gas
Liquid
dB
kg
[ mm
[ mm
kg
Overheating, Over current protection
52
93
15.88
9.52
R22 o 5
Note 1: External dimensions in parentheses indicate the dimensions of protruding parts.
Note 2: Rating conditions (JIS B 8615)
Cooling: Indoor : D.B. 27: W.B. 19.5:
: Outdoor : D.B. 35: W.B. 24:
Heating : Indoor : D.B. 21:
: Outdoor : D.B. 7: W.B. 6:
34.9-33.5-32.2 / 33.6
32.6-31.2-29.9 / 31.5
Crossover fin
Cooling 27-100% Heating 25-100%
Reverse cycle
—
Thermal switch
Thermal switch
Expansion valve
PUMY-125VM
12,500
6.57 / 6.43
85 / 87
22.0
14,000
6.10 / 6.03
85 / 87
22.0
EHV46FAA
3.5
1.9 (104Hz)
—
1.4 (MS32)
90
60 o 2
54
130
19.05
9.52
R22 o 8.5
1 PUMY-71VM1
7
Item
Service Ref
Rated Cooling capacity
Rated power consumption
Operating current
Operating power factor
Starting current
Rated Heating capacity
Rated power consumption
Operating current
Operating power factor
Standard performance
Heating Cooling
Starting current
Rated power supply
External finish (Munsell colour-coded markings)
Dimensions H o W o D (Note 1)
Heat exchanger type
Model
Type o quantity
Starting method
Motor output
Capacity control
Daily cooling capacity
Compressor
Heater <crankcase>
Refrigerating oil (Model)
Type o quantity
Airflow
Fan
Motor output
Defrost method
Pressure gauge
High pressure protection
Compressor protection
Blower protection
Protection
devices
Frequency converter circuit
Noise level
Weight
Refrigerant pipe size
Refrigerant
Type o charge amount
Control method
Gas
Liquid
Unit
kW
kW
A
%
A
kW
kW
A
%
A
mm
kW
%
Legal tons
W
L
k/min
W
dB
kg
[ mm
[ mm
kg
2 PUMY-71VM2
8.0
3.50 / 3.63
17.5-16.7-16.0 / 18.1
91
15.0
9.0
3.65 / 3.53
18.2-17.4-16.7 / 17.6
91
15.0
PUMY-125VM
14.0
6.57 / 6.43
34.9-33.5-32.2 / 33.6
85 / 87
22.0
16.0
6.10 / 6.03
32.6-31.2-29.9 / 31.5
85 / 87
22.0
Single phase 220-230-240V 50Hz / 220V 60Hz
Molten-galvanized steel plate (with polyester coating), ivory white <5Y 8/1>
1280 o 900 o 320 (+30) 1280 o 1020 o 350 (+30)
Crossover fin
EHV33FAG
EHV46FAG
Fully enclosed type o 1
Frequency converter start
2.6
Cooling 36-100% Heating 32-100%
1.1 (83Hz)
—
1.4 (MS32)
Cooling 27-100% Heating 25-100%
3.5
1.9 (104Hz)
—
1.4 (MS32)
Propeller (direct) o 2
95
40 o 2
90
60 o 2
Reverse cycle
—
High pressure pressure sensor (3.0MPa)
Thermal switch
Thermal switch
Overheating, Over current protection
52
102
15.88
9.52
R22 o 5
54
130
19.05
9.52
R22 o 8.5
Expansion valve
Note 1: External dimensions in parentheses indicate the dimensions of protruding parts.
Note 2: Rating conditions (JIS B 8616)
Cooling: Indoor : D.B. 27: W.B. 19.0:
: Outdoor : D.B. 35: W.B. 24:
Heating : Indoor : D.B. 20:
: Outdoor : D.B. 7: W.B. 6:
8
Item
Rated Cooling capacity
Rated power consumption
Operating current
Operating power factor
Starting current
Rated Heating capacity
Rated power consumption
Operating current
Operating power factor
Standard performance
External finish (Munsell colour-coded markings)
Dimensions H o W o D (Note 1)
Heat exchanger type
Compressor
Fan
Defrost method
Pressure gauge
Protection
Noise level
Weight
Refrigerant pipe size
Refrigerant
Note 1: External dimensions in parentheses indicate the dimensions of protruding parts.
Model
Type o quantity
Starting method
Motor output
Capacity control
Daily cooling capacity
Heater <crankcase>
Refrigerating oil (Model)
Type o quantity
Airflow
Motor output
High pressure protection
Compressor protection
Blower protection
devices
Frequency converter circuit
Type o charge amount
Control method
: Outdoor : D.B. 35: W.B. 24:
Heating : Indoor : D.B. 21:
: Outdoor : D.B. 7: W.B. 6:
Service Ref
Gas
Liquid
Unit
kcal/h
kW
A
%
A
kcal/h
kW
A
%
A
mm
kW
%
Legal tons
W
L
k/min
W
dB
kg
[ mm
[ mm
kg
3 phase 380-400-415V 50Hz
Molten-galvanized steel plate (with polyester coating), ivory white <5Y 8/1>
1280 o 1020 o 350 (+30)
Fully enclosed type o 1
Frequency converter start
Cooling 27-100% Heating 25-100%
Propeller (direct) o 2
High pressure pressure sensor (3.0MPa)
Overheating, Over current protection
PUMY-125YM
12,500
5.95
9.6-9.1-8.8
94
8.0
14,000
5.58
9.0-8.6-8.3
94
8.0
Crossover fin
EHV46FAD
3.5
1.9 (104Hz)
—
1.4 (MS32)
90
60 o 2
Reverse cycle
—
Thermal switch
Thermal switch
54
127
19.05
9.52
R22 o 8.5
Expansion valve
9
Item
Rated Cooling capacity
Rated power consumption
Operating current
Operating power factor
Starting current
Rated Heating capacity
Rated power consumption
Operating current
Operating power factor
Standard performance
External finish (Munsell colour-coded markings)
Dimensions H o W o D (Note 1)
Heat exchanger type
Compressor
Fan
Defrost method
Pressure gauge
Protection
Noise level
Weight
Refrigerant pipe size
Refrigerant
Note 1: External dimensions in parentheses indicate the dimensions of protruding parts.
Note 2: Rating conditions (JIS B 8616)
Cooling : Indoor : D.B. 27: W.B. 19.0:
Heating Cooling
Starting current
Rated power supply
Model
Type o quantity
Starting method
Motor output
Capacity control
Daily cooling capacity
Heater <crankcase>
Refrigerating oil (Model)
Type o quantity
Airflow
Motor output
High pressure protection
Compressor protection
Blower protection
devices
Frequency converter circuit
Type o charge amount
Control method
: Outdoor : D.B. 35: W.B. 24:
Heating : Indoor : D.B. 20:
: Outdoor : D.B. 7: W.B. 6:
Service Ref
Gas
Liquid
Unit
kW
kW
A
%
A
kW
kW
A
%
A
mm
kW
%
Legal tons
W
L
k/min
W
dB
kg
[ mm
[ mm
kg
3 phase 380-400-415V 50Hz / 380V 60Hz
Molten-galvanized steel plate (with polyester coating), ivory white <5Y 8/1>
1280 o 1020 o 350 (+30)
Fully enclosed type o 1
Frequency converter start
Cooling 27-100% Heating 25-100%
Propeller (direct) o 2
High pressure pressure sensor (3.0MPa)
Overheating, Over current protection
PUMY-125YM1
14.0
5.95
9.6-9.1-8.8 / 9.6
94
8.0
16.0
5.58
9.0-8.6-8.3 / 9.0
94
8.0
Crossover fin
EHV46FAK
3.5
1.9 (104Hz)
—
1.4 (MS32)
90
60 o 2
Reverse cycle
—
Thermal switch
Thermal switch
54
127
19.05
9.52
R22 o 8.5
Expansion valve
10
Item
Rated Cooling capacity
Rated power consumption
Operating current
Operating power factor
Starting current
Rated Heating capacity
Rated power consumption
Operating current
Operating power factor
Standard performance
External finish (Munsell colour-coded markings)
Dimensions H o W o D (Note 1)
Heat exchanger type
Compressor
Fan
Defrost method
Pressure gauge
Protection
Noise level
Weight
Refrigerant pipe size
Refrigerant
Note 1: External dimensions in parentheses indicate the dimensions of protruding parts.
Model
Type o quantity
Starting method
Motor output
Capacity control
Daily cooling capacity
Heater <crankcase>
Refrigerating oil (Model)
Type o quantity
Airflow
Motor output
High pressure protection
Compressor protection
Blower protection
devices
Frequency converter circuit
Type o charge amount
Control method
: Outdoor : D.B. 35: W.B. 24:
Heating : Indoor : D.B. 20:
: Outdoor : D.B. 7: W.B. 6:
Service Ref
Gas
Liquid
Unit
kW
kW
A
%
A
kW
kW
A
%
A
mm
kW
%
Legal tons
W
L
k/min(CFM)
W
dB
kg(lbs)
[ mm
[ mm
kg
28.3-27.1-26.0/28.0
27.2-26.0-24.9/26.9
Single phase 220-230-240V 50Hz / 220V 60Hz
Molten-galvanized steel plate (with polyester coating), ivory white <5Y 8/1>
1280 o 1020 o 350 (+30)
Fully enclosed type o 1
Frequency converter start
Cooling 27-100% Heating 25-100%
Propeller (direct) o 2
High pressure pressure sensor (3.0MPa)
Overheating, Over current protection
PUMY-125VMA
PUMY-125VMA
14.0
6.10/6.04
98
17
16.0
5.58/5.79
98
17
Crossover fin
EHV46FAM1
3.5
1.9 (104Hz)
—
1.4 (MS32)
90(3,177)
60 o 2
Reverse cycle
—
Thermal switch
Thermal switch
54
128(282)
19.05
9.52
R22 o 8.5
Expansion valve
1
11
Item
Rated Cooling capacity
Rated power consumption
Operating current
Operating power factor
Starting current
Rated Heating capacity
Rated power consumption
Operating current
Operating power factor
Standard performance
External finish (Munsell colour-coded markings)
Dimensions H o W o D (Note 1)
Heat exchanger type
Compressor
Fan
Defrost method
Pressure gauge
Protection
Noise level
Weight
Refrigerant pipe size
Refrigerant
Note 1: External dimensions in parentheses indicate the dimensions of protruding parts.
Model
Type o quantity
Starting method
Motor output
Capacity control
Daily cooling capacity
Heater <crankcase>
Refrigerating oil (Model)
Type o quantity
Airflow
Motor output
High pressure protection
Compressor protection
Blower protection
devices
Frequency converter circuit
Type o charge amount
Control method
: Outdoor : D.B. 35: W.B. 24:
Heating : Indoor : D.B. 20:
: Outdoor : D.B. 7: W.B. 6:
Service Ref
Gas
Liquid
Unit
kW
kW
A
%
A
kW
kW
A
%
A
mm
kW
%
Legal tons
W
L
k/min
W
dB
kg
[ mm
[ mm
kg
3 phase 380-400-415V 50Hz
Molten-galvanized steel plate (with polyester coating), ivory white <5Y 8/1>
1280 o 1020 o 350 (+30)
Fully enclosed type o 1
Frequency converter start
Cooling 27-100% Heating 25-100%
Propeller (direct) o 2
High pressure pressure sensor (3.0MPa)
Overheating, Over current protection
PUMY-125YMA
14.0
5.95
9.6-9.1-8.8
94
8.0
16.0
5.58
9.0-8.6-8.3
94
8.0
Crossover fin
EHV46FAK
3.5
1.9 (104Hz)
—
1.4 (MS32)
90
60 o 2
Reverse cycle
—
Thermal switch
Thermal switch
54
127
19.05
9.52
R22 o 8.5
Expansion valve
12
4DATA
Model 20
Model Number for indoor unit
Model Capacity
22
20
Model 25
28
25
Model 32
36
32
Model 40
45
40
Model 50
56
50
Model 63
71
63
Model 71
80
71
Model 80
90
80
Model 100
112
100
Model 125
140
125
4-1. COOLING AND HEATING CAPACITY AND CHARACTERISTICS
4-1-1. 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 page14-30.
(1) Capacity of indoor unit
As for PUMY-71VM
125VMA
1, see the value here to check the stadard capaity.
2, 125VM2, 125YM1, 125YMA, 125VMA and
(2) Sample calculation
1System 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-125YM
• Indoor unit PKFY-P25VAM o 2 , PLFY-P50VLMD o 2
2According to the conditions in 1, the total capacity of the indoor unit will be: 25 o 2 + 50 o 2 = 150
3The following figures are obtained from the 150 total capacity row of the standard capacity table (page 24):
Capacity (kcal/h)
Cooling
13,026
AB
Heating
14,288
Outdoor unit power consumption (kW)
Cooling
6.15
Heating
5.98
Outdoor unit current (A)
Cooling
9.4
Heating
9.2
4-1-2. Method for obtaining the heating and cooling capacity of an indoor unit:
(1) The capacity of each indoor unit (kcal/h) = the capacity A (or B) o
(2) Sample calculation using the system described above in 4-1-1. (2)
During coolingDuring heating
• The total model capacity of the indoor unit is :
25 o 2 + 50 o 2=150 kcal/h
Therefore, the capacity of PKFY-P25VAM and
PLFY-P50VLMD will be calculated as follows by
using the formula in 4-1-2. (1) :
• The total model capacity of indoor unit is :
28 o 2 + 56 o 2=168 kcal/h
Therefore, the capacity of PKFY-P25VAM and PLFYP50VLMD will be calculated as follows by using the
formula in 4-1-2. (1) :
Service RefPUMY-VM/VM1/YMPUMY-VM2/YM1/VMA/VMA1/YMA
Rated cooling capacity
Rated heating capacity
Indoor D.B. 27°C / W.B. 19.5°C
Outdoor D.B. 35°C
Indoor D.B. 21°C
Outdoor D.B. 7°C / W.B. 6°C
Indoor D.B. 27°C / W.B. 19.0°C
Outdoor D.B. 35°C
Indoor D.B. 20°C
Outdoor D.B. 7°C / W.B. 6°C
4-3-1. Correcting Changes in Air Conditions
(1)The performance curve charts (Figure 1, 2, 3, 4) show the rated capacity (total capacity) under the stated conditions when
standard length for piping (5m) is used. The rated power is derived from the capacity ratio and power ratio obtained for the
indoor and outdoor intake temperatures at time 1.
• Standard conditions:
• Use the rated capacity and rated power values given in the characteristics table for each indoor unit.
• The capacity is the single value on the side of the outdoor unit; the capacity on the sides of each indoor unit must be
added to obtain the total capacity.
(2)The capacity of each indoor unit may be obtained by multiplying the total capacity obtained in (1) by the ratio between the
individual capacity at the rated time and the total capacity at the rated time.
Individual capacity under stated conditions = total capacity under the stated conditions o
4-3-2. Correcting Capacity for Changes in the Length of Refrigerant Piping
1.0
0.9
0.8
0.7
010203040506070
35 (50%)
53 (75%)
71 (100%)
93 (130%)
Total capacity of indoor unit
1.0
0.95
0.9
51020304050607075
1.0
0.9
0.9
0.7
63 (50%)
94 (75%)
125 (100%)
163 (130%)
51070203040506075
(1) During cooling, to obtain the ratio (and the equivalent piping length) of the outdoor units rated capacity and the total
in-use indoor capacity, first find the capacity ratio corresponding to the standard piping length (5m) from figures 5 and 6
at first, and then multiply by the cooling capacity from Figure 1 to obtain the actual capacity.
(2) During heating, to find the equivalent piping length, first find the capacity ratio corresponding to standard piping length
(5m) from Figure 7, and then multiply by the heating capacity from Figure 2 to obtain the actual capacity.
(3) Method for Obtaining the Equivalent Piping Length
Equivalent length for type 125 = (length of piping to farthest indoor unit) + (0.35 o number of bends in the piping) (m)
Length of piping to farthest indoor unit: type 125.....70m
4-3-3. Correction of Heating Capacity for Frost and Defrosting
If heating capacity has been reduced due to frost formation or defrosting, multiply the capacity by the appropriate correction
factor from the following table to obtain the actual heating capacity.
Correction factor diagram
Outdoor Intake temperature (°CWB)
Correction factor
6
1.0
4
0.98
2
0.89
33
0
0.88
-2
0.89
-4
0.9
-6
0.95
-8
0.95
-10
0.95
PUMY-71VM
PUMY-71VM1
PUMY-71VM2
90
NOTCH
Hi52
SPL(dB) LINE
PUMY-125VM
PUMY-125VM
1
PUMY-125VM2
PUMY-125YM
PUMY-125YM
1
PUMY-125VMA
PUMY-125VMA
PUMY-125YMA
90
SPL(dB) LINE
NOTCH
Hi54
1
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
631252505001000200040008000
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
MICROPHONE
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
631252505001000200040008000
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
1m
1m
34
5OUTLINES AND DIMENSIONS
OUTDOOR UNITS
PUMY-71VM
PUMY-71VM1
PUMY-71VM2
Optional parts
(base branching
pipe) installation
hole
Terminal block for transmission
Terminal block for central control
Terminal block for Power source
Gas refrigerant-pipe
connection {15.88(5/8F)
Liquid refrigerant-pipe
connection {9.52(3/8F)
Knock out hole for right piping
Knock out holes for power line 2-{27
unit : mm
shaped notched holes
(standard bolt M10)
Air intake
Air intake
Air outlet
Service panel
Handle for
Optional parts
moving
installation hole
Side air intake
Rear air intake
Handing for moving
Knock out holes for
power line 2-{27
Knock out hole
for front piping
Piping cover
Bottom piping hole
Oval holes
(standard bolt M10)
Drain hole
(3-{33 hole)
Handle for moving
35
Rear piping hole
when a piping cover is used for aesthetic reasons.
✻1...Indicates the dimensions of the cutoff valve connector.
✻2...Make sure that the panel can be easily removed for maintenance
CURRENT DETECTION
CRANKCASE HEATER
CONNECTOR <POWER SUPPLY>
CONNECTOR <DC POWER SUPPLY>
CONNECTOR <MULTI SYSTEM>
CONNECTOR <CENTRALIZED CONTROL>
CONNECTOR <CONTROLLER DRIVE CONTROL>
CONNECTOR <POWER SYNC SIGNAL , PROTECTION>
CONNECTOR <POWER SUPPLY 30V , 12V , 5V>
CONNECTOR <INVERTER SIGNAL 5V>
CONNECTOR <IPM POWER SUPPLY>
CONNECTOR <IPM POWER SUPPLY , TROUBLE OUTPUT>
CONNECTOR <CENTRALIZED CONTROL POWER SUPPLY>
CONNECTOR <FOR STORING JUMPER CONNECTOR>
CONNECTOR <COMPRESSOR DRIVE SIGNAL OUTPUT>
CONNECTOR <DEMAND SIGNAL,SILENT MODE INPUT>
CONNECTOR <CURRENT DETECTION>
FAN MOTOR CAPACITOR
CAPACITOR<SMOOTHING>
CAPACITOR<POWER FACTOR IMPROVEMENT>
DIODE STACK
DIODE <POWER FACTOR IMPROVEMENT>
REACTOR
FAN CONTROL
FUSE(2A)
FUSE(6A)
FUSE(30A)
INTELLIGENT POWER MODULE
DIGITAL INDICATION LED
<OPERATION INSPECTION INDICATION>
COMPRESSOR
FAN MOTOR (INNER THERMOSTAT)
NOISE FILTER
RESISTOR<RUSH CURRENT PROTECT>
RESISTOR<DISCHARGE>
EXPANSION VALVE
SOLENOID COIL <HOT GAS BYPASS>
SWITCH <DISPLAY SELECTION SELFDIAGNOSIS>
SWITCH <FUNCTION SELECTION>
SWITCH <TEST RUN>
SWITCH <MODEL SELECTION>
SWITCH <FUNCTION SELECTION>
SWITCH <UNIT ADDRESS SELECTION,1ST DIGIT>
SWITCH <UNIT ADDRESS SELECTION,2ND DIGIT>
SWITCH <UNIT ADDRESS SELECTION,3RD DIGIT>
TERMINAL BLOCK <POWER SUPPLY>
TERMINAL BLOCK <TRANSMISSION>
TERMINAL BLOCK
<TRANSMISSION> (CENTRALIZED CONTROL)
THERMISTOR
<IPM RADIATOR PANEL TEMPERATURE DETECTION>
THERMISTOR<DISCHARGE TEMPERA TURE DETECTION>
THERMISTOR
<LOW PRESSURE SATURATED TEMPERATURE DETECTION>
THERMISTOR
<PIPE TEMPERATURE DETECTION,JUDGING DEFROST>
THERMISTOR<OUTDOOR TEMPERA TURE DETECTION>
RELAY
<CRANKCASE HEATER,MAGNETIC CONTACTOR>
RELAY<4-WAY VALVE>
RELAY<SOLENOID VALVE>
VARISTOR
4-WAY COIL
THERMAL SWITCH <COMPRESSOR>
MAGNETIC CONTACTOR
<INVERTER MAIN CIRCUIT>
HIGH PRESSURE SENSOR
<DISCHARGE PRESSURE DETECTION>
Always lit
87
-
1
2
436
587
(Example)
When the compressor and SV1 are
turned during heating operation.
6
-
-
5
SV1
4
21S4
3
2
52C
1
Indication
Bit
•During normal operation
The LED indicates the drive state of the controller in the outdoor unit.
1.Refer to the wiring boards of the indoor units for details on wiring of each indoor unit.
2.The transmission line is two-wire type and has no polarity.
3.Mark shows the terminal board,mark the connector .Symbols in parentheses () show the colors of connectors.
4.Self-diagnosis function
The indoor and outdoor units can be diagnosed automatically using the self-diagnosis switch(SW1) and LD1(LED indication)
found on the multi-controller of the outdoor unit.
LED indication : Set all contacts of SW1 to OFF.
(Example)
When the compressor and SV1 are
turned during heating operation.
6
-
-
5
SV1
4
21S4
3
2
52C
1
Indication
Bit
•During normal operation
The LED indicates the drive state of the controller in the outdoor unit.
1.Refer to the wiring diagrams of the indoor units for details on wiring of each indoor unit.
2.The transmission line is two-wire type and has no polarity.
3.Mark shows the terminal board, mark the connector. Symbols in parentheses () show the colors of connectors.
4.Self-diagnosis function
The indoor and outdoor units can be diagnosed automatically using the self-diagnosis switch(SW1) and LD1(LED indication)
found on the multi-controller of the outdoor unit.
LED indication : Set all contacts of SW1 to OFF.
Compressor operated
39
PUMY-125VM1
SYMBOL
NAME
NAME
SYMBOL
NAME
SYMBOL
AC,CT
AR
CB
CNA
CND
CNS1
CNS2
CN1
CN2
CN3
CN4
CN5
CN6
CN40
CN41
CN51
CN3D
C1,2
C3,4
C5,6
C7
D
DB1,DB2
1.Refer to the wiring diagrams of the indoor units for details on wiring of each indoor unit.
2.The transmission line is two-wire type and has no polarity.
3.Mark shows the terminal block, mark the connector.Symbols in parentheses() show the colors of connectors.
4.Self-diagnosis function
The indoor and outdoor units can be diagnosed automatically using the self-diagnosis switch(SW1) and LD1(LED indication)
found on the multi-controller of the outdoor unit.
LED indication:Set all contacts of SW1 to OFF.
•During normal operation
The LED indicates the drive state of the controller in the outdoor unit.
CURRENT DETECTION
SURGE ABSORBER
SMOOTHING CAPACITOR
CONNECTOR <POWER SUPPLY>
CONNECTOR <DC POWER SUPPLY>
CONNECTOR <MULTI SYSTEM>
CONNECTOR <CENTRALIZED CONTROL>
CONNECTOR <CONTROLLER DRIVE CONTROL>
CONNECTOR <POWER SYNC SIGNAL , PROTECTION>
CONNECTOR <POWER SUPPLY 30V,12V,5V>
CONNECTOR <INVERTER SIGNAL 5V>
CONNECTOR <IPM POWER SUPPLY>
CONNECTOR <IPM POWER SUPPLY , TROUBLE OUTPUT>
CONNECTOR <CENTRALIZED CONTROL POWER SUPPLY>
CONNECTOR <FOR STORING JUMPER CONNECTOR>
CONNECTOR <COMPRESSOR DRIVE SIGNAL OUTPUT>
CONNECTOR <DEMAND SIGNAL , SILENT MODE INPUT>
FAN MOTOR CAPACITOR
CAPACITOR <POWER FACTOR IMPROVEMENT>
CAPACITOR
CAPACITOR <FILTER>
DIODE <POWER FACTOR IMPROVEMENT>
DIODE STACK
REACTOR
FAN CONTROL
FUSE(2A)
FUSE(6A)
FUSE(60A)
INTELLIGENT POWER MODULE
DIGITAL INDICATION LED
<OPERATION INSPECTION INDICATION>
COMPRESSOR
FAN MOTOR (INNER THERMOSTAT)
NOISE FILTER
RESISTOR <DISCHARGE>
RESISTOR <RUSH CURRENT PROTECT>
EXPANSION VALVE
SOLENOID COIL <HOT GAS BYPASS>
SWITCH <DISPLAY SELECTION SELF DIAGNOSIS>
SWITCH <FUNCTION SELECTION>
SWITCH <TEST RUN>
SWITCH <MODEL SELECTION>
SWITCH <FUNCTION SELECTION>
SWITCH <UNIT ADDRESS SELECTION, 1ST DIGIT>
SWITCH <UNIT ADDRESS SELECTION, 2ND DIGIT>
SWITCH <UNIT ADDRESS SELECTION, 3RD DIGIT>
TERMINAL BLOCK <POWER SUPPLY>
TERMINAL BLOCK <TRANSMISSION>
TB7
THHS
TH1
TH2
TH5
TH6
X1
X2
X3
X4
ZNR
21S4
26C
52C
63HS
TERMINAL BLOCK
<TRANSMISSION> (CENTRALIZED CONTROL)
THERMISTOR
<IPM RADIATOR PANEL TEMPERATURE DETECTION>
THERMISTOR <DISCHARGE TEMPERATURE DETECTION>
THERMISTOR
<LOW PRESSURE SATURATED TEMPERATURE DETECTION>
THERMISTOR
<PIPE TEMPERATURE DETECTION . JUDGING DEFROST>
THERMISTOR
<OUTDOOR TEMPERATURE DETECTION>
RELAY<MAGNETIC CONTACTOR>
RELAY<4-WAY VALVE>
RELAY<SOLENOID VALVE>
RELAY
VARISTOR
4-WAY COIL
THERMAL SWITCH <COMPRESSOR>
MAGNETIC CONTACTOR
<INVERTER MAIN CIRCUIT>
HIGH PRESSURE SENSOR
<DISCHARGE PRESSURE DETECTION>
-
1.Refer to the wiring diagrams of the indoor units for details on wiring of each indoor unit.
2.The transmission line is two-wire type and has no polarity.
3.Mark shows the terminal block, mark the connector. Symbols in parentheses() show the colors of connectors.
4.Self-diagnosis function
The indoor and outdoor units can be diagnosed automatically using the self-diagnosis switch(SW1) and LD1(LED indication)
found on the multi-controller of the outdoor unit.
LED indication:Set all contacts of SW1 to OFF.
•During normal operation
The LED indicates the drive state of the controller in the outdoor unit.
Bit
Indication
Compressor operated
2
52C
3
4
5
6
78
1
21S4
SV1
-
-
Always lit
(Example)
When the compressor and SV1 are
turned during heating operation.
1
243658
7
2
THHS
1
2
3
4
5
52C
1
2
3
1
42
X2X1X3
YLW
21S4
RED
BLK
BRN
321543214321
21S4
SV1
1
1
3
3
RED
RED
RED
RED
DCL
BLK
C3
BLU
ZNR
C4
RED
52C
X4
RS
3
5
BRN
21
2311
THHS
TH6
TH5
(WHT)
(GRN)
F.C
MF1
131
WHT
MF1
RED
C1
D
1
WHT
3
RB
BLK
BLK
BRN
BLU
ORN
BLU
2
6
3
MF2
C2
RED
RED
CN1
CN1
WHT
RED
2
BLK
6
6
MF2
(RED)
2
3
3
(RED)
BLU
ORN
+
–
(BLK)
2
CB
SW1
ON
OFF
12876543
SW3
ON
OFF
12432112345678
(YLW)
CN2
5
1
6
3
2
4
6
1
5
4
3
2
(YLW)
CN2
FUSE1
(2A)
(YLW)
CN5
CND
32
1
2
1
RED
BLK
1
2
(WHT)(WHT)
RED
P(+)
C7
BLK
N(–)
<IPM>
CN40CN51 CN3D
(WHT)(WHT)(WHT)
CNS2
1
(YLW)
2
CNS1
1
(RED)
2
SWU3
TB3
M1
TO INDOOR UNIT
CONNECTING WIRES
DC 30V (Non-polar)
FOR CENTRALIZED
CONTROL
DC 30V (Non-polar)
NO FUSE BREAKER
100A
POWER SUPPLY
~(1PHASE)
220-240/220V
50/60Hz
M2
M1
M2
LL
NN
S
TB7
S
TB1
BRN
BRN
ORN
ORN
RED
RED
BLK
BLK
GRN
GRN/YLW
RED
C5
C6
<MULTI CONTROLLER BOARD>
AR
RED
FUSE(60A)
NF
143
2
GRN/YLW
<POWER SUPPLY BOARD>
RED
BLK
4321
CN41
(WHT)
LD1
0
0
0
1
1
9
8
7
6
2
3
4
5
FUSE2
(6A)
CNA
3
1
RED
9
9
2
8
8
3
7
7
4
6
6
5
SWU1
SWU2
(1st digit)
(2nd digit)(3rd digit)
CHCN6
1
3
3
BLU
YLW
52CSV1
DB1 DB2
2
3
1
YLW
YLW
X4
7
8
TH1
TH2TH5TH6
3121
TH2
TH1
(WHT)(GRN)
SW2
ON
OFF
OFF
SW5
ON
CN3
7
SW4
1
26C
YLW
YLW
6
1
(WHT)
5
7
21
26C
CN3
(BLK)
6
9
10
2
1
6
6
9
10
5
CN5CN6
RED
2
1
<GATE AMP BOARD>
WVX4U
BLU
WHT
V
U
W
MC
63HS
63HS
(WHT)
(WHT)
263
546
3
2
(WHT)
(WHT)
3
3
3
AC.CT
SLEV
3
6
456
123
321
SLEV
(WHT)
10987654321
AC.CT
(YLW)
(YLW)
CN4
4
657
1
1
7
4
362
5
7
CN4
(YLW)
2
1
RED
WHT
213
1
PUMY-125YM
SMOOTHING CAPACITOR
C03
CAPACITOR <FILTER>
C01,C02
CONNECTOR <DISCHARGE CIRCUIT,POWER SUPPLY>
CNR
RESISTOR <RUSH CURRENT PROTECT>
RS1
RESISTOR <DISCHARGE>
RB1,RB2
RESISTOR <VOLTAGE BALANCE ADJUSTMENT>
RD1,RD2
RELAYX
X73
RELAY <SOLENOID VALVE>
X72
RELAY <4-WAY VALVE>
TERMINAL BLOCK <TRANSMISSION>
C1,C2
FAN MOTOR CAPACITOR
SWITCH <UNIT ADDRESS SELECTION,3RD DIGIT>
SWITCH <UNIT ADDRESS SELECTION,2ND DIGIT>
SWU3
SWU2
SWITCH <UNIT ADDRESS SELECTION,1ST DIGIT>
SWU1
SWITCH <FUNCTION SELECTION>SW5
SWITCH <MODEL SELECTION>SW4
SWITCH <TEST RUN>SW3
THERMISTOR
<IPM RADIATOR PANEL TEMP. DETECTION>
THHS
INTELLIGENT POWER MODULEIPM
FAN CONTROL
F.C
CONNECTOR <CENTRALIZED CONTROL POWER SUPPLY>
CN40
CONNECTOR <FOR STORING JUMPER CONNECTOR>
CN41
CONNECTOR <COMPRESSOR DRIVE SIGNAL OUTPUT>
CN51
CONNECTOR <INVERTER SIGNAL 5V>
CN4
CONNECTOR <POWER SUPPLY 30V,12V,5V>
CN3
CONNECTOR <POWER SYNC SIGNAL,PROTECTION>
CN2
CONNECTOR <CONTROLLER DRIVE CONTROL>
CN1
CONNECTOR <POWER SUPPLY>
CNA
CURRENT DETECTION
ACCT
SYMBOL
NAME
SYMBOL
NAMESYMBOL
NAME
SW2
SW1
SWITCH <FUNCTION SELECTION>
SWITCH <DISPLAY SELECTION>
CONNECTOR <DEMAND SIGNAL/SILENT MODE INPUT>
CN3D
REACTOR
THERMAL SWITCH <COMPRESSOR>
TERMINAL BLOCK <CENTRALIZED CONTROL>
TH2
TH5
TH6
63HS
52C
21S4
TH1
SV1
SLEV
MF1,MF2
LD1
X71
CNS1
CNS2
ZNR
FUSE2
TB7
TB3
TB1
MC
DCL
NF
FUSE1
49C
CONNECTOR <MULTI SYSTEM>
CONNECTOR <CENTRALIZED CONTROL>
FUSE(2A)
DIGITAL INDICATION LED
<OPERATION INSPECTION INDICATION>
FAN MOTOR(INNER THERMOSTAT)
EXPANSION VALVE
SOLENOID COIL <HOT GAS BYPASS>
HIGH PRESSURE SENSOR
<DISCHARGE PRESSURE DETECTION>
MAGNETIC CONTACTOR
4-WAY COIL
RELAY <MAGNETIC CONTACTOR>
VARISTOR
FUSE(6.3A)
COMPRESSOR(INNER THERMOSTAT)
NOISE FILTER
TERMINAL BLOCK <POWER SUPPLY>
THERMISTOR <DISCHARGE TEMP. DETECTION>
THERMISTOR
<LOW PRESSURE SATURATED TEMP. DETECTION>
THERMISTOR <OUTDOOR TEMP. DETECTION>
THERMISTOR
<PIPE TEMP. DETECTION:JUDGING DEFROST>
CB1,CB2
DM
SMOOTHING CAPACITOR
DIODE MODULE
NAME
SYMBOL
9
8
7
6
5
4
3
2
1
0
NO FUSE BREAKER
25A
L1
L2
L3
N
X
X
1
RD2
1
(WHT)
CN3D
(WHT)
CN51
(WHT)
CN41
(WHT)
CN40
53214321
43214321
YLW
CB2
CB1
CNR
(WHT)
CNR
(WHT)
(RED)
CNA
<POWER SUPPLY BOARD>
(YLW)
49C
(RED)
CN1
FUSE1
(6.3A)
FUSE2
(2A)
SLEV
6
1
2
5764
49C
YLW
311234567
1234567
12367123456
1236
123671236
CN4
CN3
CN2
CN4CN3CN2
(YLW)
(YLW)
(WHT)
(YLW)
(RED)
(YLW)(WHT)
2
4321
12345678
10987654321
2876543
SW3
SW5
OFF
ON
OFF
ON
SW4
SW1
SW2
OFF
ON
1
1
ON
OFF
ON
OFF
(YLW)
ACCT
654321
132
CN1
3
63HS
654
1321231
13 2121
THHS
TH1TH2TH5TH6
63HS
THHS
TH2
TH6 TH5
TH1
(BLK) (WHT)
(GRN)
(GRN)
(WHT)
(WHT)
SLEV
(WHT)
BLU
-
+
~
~
~
LO1
LO2
LO3
LI3
E
N
LI2
LI1
(RED)
31
CNA
13
GRN
6
YLW
YLW
WHT
BLK
RS1
RB2
RB1
RD1
BLK
RED
BLU
WHT
GRN
E
P
N
C03
C02C01
N
P1PN1
10
3
5
6
8
10
3
568
+
–
IPM
WV
–
+
+
–
RED
WHT
BLK
3113
31
(BLU)
52C
X71
YLW
YLW
52C
31
(GRN)
21S4
X72
BLU
BLU
21S4
SV1
RED
RED
13
(BLK)
SV1
(WHT)
MF2
(WHT)
MF1
MF1
C1
31
WHT
BLU
WHT
BLU
RED
ORN
RED
ORN
BLU
WHT
31
BLU
52C
N
BLU
L3
BLK
L1
RED
S
M1
M2
S
M2
M1
LD1
SWU1
(1rd digit)
SWU2
(2rd digit)(3rd digit)
SWU3
<RESISTOR BOARD>
CNS1
(RED)
CNS2
(YLW)
F.C
2
1
1
GRN/YLW
ZNR
–
+
BLU
BLK
2
FOR CENTRALIZED
CONTROL
DC 30V (Non-polar)
WHT
BLK
WHT
RED
WHT
ORN
ORN
BRN
BRN
GROUND
TO INDOOR UNIT
CONNECTING WIRES
DC 30V (Non-polar)
POWER SUPPLY
3N~
380/220-415/240V
50Hz
380/220
60Hz
W
V
U
U
X73
TB3
TB7
L2
TB1
MF2
C2
MC
DCL
DM
NF
<MULTI CONTROLLER BOARD>
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
1.Refer to the wiring diagrams of the indoor units for details on wiring of each indoor unit.
2.Symbols used in wiring diagram above are. :Terminal block, :Connector, :Insertion tab.
3.Self-diagnosis function
The indoor and outdoor units can be diagnosed automatically using the self-diagnosis switch(SW1) and LD1(LED indication)
found on the multi-controller of the outdoor unit.
LED indication : Set all contacts of SW1 to OFF.
78563421
(Example)
When the compressor and SV1 are
turned during heating operation.
Always lit---
SV1
21S4
18
7654
3
52C
2
Compressor operated
Indication
Bit
•During normal operation
The LED indicates the drive state of the controller in the outdoor unit.
43
PUMY-125VMA PUMY-125VMA1
Only PUMY-125VMA1
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
Switch(Function Selection)SW6
2
2
ACTM
< M.B.>
< N.F.>
< P.B.>
LED1
1
3
1
3
1
3
7
*1
*1 The address automatically
becomes "100" if it is
set as "01~50".
POWER SUPPLY
~ / N
220-230-240V
NO FUSE BREAKER 32A
TO INDOOR UNIT
CONNECTING WIRES
DC 30V (Non-polar)
FOR CENTRALIZED
CONTROL
DC 30V (Non-polar)
CE
+
52C
RS
N
L
TB1
L
N
M1
M2
S
TB7
ORN
ORN
S
M2
M1
BRN
BRN
TB3
DCL3
L2
L1
DCL2DCL1
DCL4
DCL1DCL2
L1
+
-
N1
N2
I
P
652341
L2
EI
CN5
(RED)
21
CNAC2
(RED)
31
NI
LI
NO
LO
MC
BLK
WHT
RED
743215
CN2 (WHT)
66
CNAF (WHT)
51234
(PNK)
CNDC
THHS-B
1
2
1
2
THHS-A
CN6
(WHT)
(RED)
CN5
CN4
(WHT)
1
2
1
2
CN3
(WHT)
13
SCR-N1
SCR-P1
U
V
W
+
-
+
+
SCR-R
SCR-S
SCR-P2
SCR-N2
IGBT
YLWYLW
49C
6
131432567
LEV
1313
(WHT)
MF2
MF2
31
BLU
WHT
WHT
BLU
31
BLU
WHT
WHT
BLU
RED
ORN
C2
RED
ORN
C1
MF1
(WHT)
MF1
F.C
F1
(6.3A)(6.3A)
F2
(RED)
CNAC
31
X502
CH(BLU)
X501
X500
SV(BLK)
SV1
BLK
BLK
21S4(GRN)
21S4
BLU
BLU
YLW
YLW
52C(ORG)
1
3
52C
CNDC(PNK)
1
2
3
1
1
1
2
1
2
1
2
CN2 (WHT)
63HS
TH2
TH5
TH6
TH1
(RED)
TH2
(GRN)
TH5
TH1
(WHT)
(WHT)
TH6
63HS
(WHT)
12341234
CN40(WHT)CN41(WHT)
(WHT)
CN51
3.12V
4.COMP. ON
5.Error
1
CN4
(WHT)
2
SW4
4321
OFF
ON
5
4
3
2
1
CNS2
CNS1
(YLW)
1
2
(RED)
CN3D(WHT)
321
CN3S(WHT)
321
49C/26C
(GRY)
31
1
LEV-A (WHT)
65432
SW3
1 3456782
OFF
SW6
ON
OFF
ON
21
SW5
OFF
ON
LED2LED1
ON
OFF
SW2
12345678910
OFF
ON
1
SW1
345678213456782
(1st digit)(2nd digit)
SWU2 SWU1
LED1,2
Digital Indication LED
Operation Inspection Indication
X502
Relay(Solenoid Valve)
X501
Relay(4-Way Valve)
X500
Relay(Magnetic Contactor)
CN3S
Connector(Connected for Option)
Demand Signal
CN3D
Auto Change Over Signal
Connector(Connected for Option)
Compressor drive signal,Error signal
Connector(Connected for Option)
CN51
CN41
Connector(For String Jumper Connector)
CN40
Connector(Centralized Control Power Supply)
CN4
Connector
CNS2
Connector(Centralized Control)
Connector(Multi system)
CNS1
Switch(Unit Address Selection,2nd digit)
Switch(Unit Address Selection,1st digit)
SWU2
SWU1
OFF;disabled ON;enabled
SW5-1 Auto Change Over
Switch(Function Selection)
Switch(Model Selection)
Switch(Test Run)
Switch(Function Selection)
SW5
SW4
SW3
SW2
SW1 Switch(Display Selection)
Fuse(6.3A)
F1,F2
Multi Circuit BoardM.B.
Connector
Connector
CN5
CNAC2
Connection Terminal(Ground)
EI
NI/NO
Connection Lead(N-Phase)
LI/LO
Connection Lead(L-Phase)
Noise Filter Circuit BoardN.F.
SC-N1,N2
SC-P1,P2
Screw Type Terminal(DC Voltage)
Screw Type Terminal(DC Voltage)
SC-S,R
LED1
IGBT
Connector
CNAF
Connector
CNDC
CN2~6
Connection Terminal(U/V/W Phase)
U/V/W
P.B.Power Circuit Board
Thermal Switch(Compressor)49C
Thermistor(Radiator Panel) A;ACTM,B;IGBT
Thermistor(Outdoor Temp.Detection)
TH5
Thermistor (Pipe Temperature
Detection / Judging Defrost)
Reactor(PUMY-125VMA)
Reactor(PUMY-125 VMA
1)
Fan Motor Capacitor
Smoothing Capacitor
Terminal Block(Centralized Control)
TB7
Terminal Block(Transmission)TB34-Way Valve21S4
Connector
Fan Motor(Inner Thermostat)
Compressor(Inner Thermostat)
MF1,MF2
SV
MC
DCL1~4
DCL1,2
C1,C2
Solenoide Valve(Hot Gas Bypass)
TH6
TB1Terminal Block(Power Supply)
RS
Resistor(Rush Current Protection)
ACTM Active Filter Module
TH1
Thermistor(Discharge Temperature Detection)
TH2
Thermistor (Low Pressure
Saturated Temperature Detection)
LEV(A) Expansion Valve
Magnetic Contactor52C
Light Emitting Diode(Inverter Control Status)
Screw Type Terminal(L./N-Phase)
Converter, Inverter
CE
63HS
(Discharge Pressure Detection)
High Pressuer Sensor
THHS A/B
operated
NOTES: 1. Refer to the wiring diagrams of the indoor units for details on wiring of each indoor unit.
2. Symbols used in wiring diagram above are. :Terminal block, :Connector, :Insertion tab.
3. Self-diagnosis function
The indoor and outdoor units can be diagnosed automatically using the self-diagnosis switch(SW1) and LED1,2
(LED indication)found on the multi-controller of the outdoor unit.
LED indication : Set all contacts of SW1 to OFF.
4. The input for CN3D 1-2(AUTO CHANGE OVER EXTERNAL SIGNEL)is as follows.
Short;heating Open;Cooling(It differs from Service ref.PUMY-(P)125YMA)
78563421
(Example)
When the compressor and SV1 are
turned during cooling operation.
Always lit---SV121S4
1876543
52C
2
Compressor
Indication
Bit
•During normal operation
The LED indicates the drive state of the controller in the outdoor unit.
•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.
SYMBOL
NAME
SYMBOL
NAME
SYMBOL
NAME
SYMBOL
NAME
44
PUMY-125YM1
SMOOTHING CAPACITOR
C03
CAPACITOR <FILTER>
C01,C02
CONNECTOR <DISCHARGE CIRCUIT,POWER SUPPLY>
CNR
RESISTOR <RUSH CURRENT PROTECT>
RS1
RESISTOR <DISCHARGE>
RB1,RB2
RESISTOR <VOLTAGE BALANCE ADJUSTMENT>
RD1,RD2
RELAYX
X73
RELAY <SOLENOID VALVE>
X72
RELAY <4-WAY VALVE>
TERMINAL BLOCK <TRANSMISSION>
C1,C2
FAN MOTOR CAPACITOR
SWITCH <UNIT ADDRESS SELECTION,3RD DIGIT>
SWITCH <UNIT ADDRESS SELECTION,2ND DIGIT>
SWU3
SWU2
SWITCH <UNIT ADDRESS SELECTION,1ST DIGIT>
SWU1
SWITCH <FUNCTION SELECTION>SW5
SWITCH <MODEL SELECTION>SW4
SWITCH <TEST RUN>SW3
THERMISTOR
<IPM RADIATOR PANEL TEMP. DETECTION>
THHS
INTELLIGENT POWER MODULEIPM
FAN CONTROL
F.C
CONNECTOR <CENTRALIZED CONTROL POWER SUPPLY>
CN40
CONNECTOR <FOR STORING JUMPER CONNECTOR>
CN41
CONNECTOR <COMPRESSOR DRIVE SIGNAL OUTPUT>
CN51
CONNECTOR <INVERTER SIGNAL 5V>
CN4
CONNECTOR <POWER SUPPLY 30V,12V,5V>
CN3
CONNECTOR <POWER SYNC SIGNAL,PROTECTION>
CN2
CONNECTOR <CONTROLLER DRIVE CONTROL>
CN1
CONNECTOR <POWER SUPPLY>
CNA
CURRENT DETECTION
ACCT
SYMBOL
NAME
SYMBOL
NAMESYMBOL
NAME
SW2
SW1
SWITCH <FUNCTION SELECTION>
SWITCH <DISPLAY SELECTION>
CONNECTOR <DEMAND SIGNAL/SILENT MODE INPUT>
CN3D
REACTOR
THERMAL SWITCH <COMPRESSOR>
TERMINAL BLOCK <CENTRALIZED CONTROL>
TH2
TH5
TH6
63HS
52C
21S4
TH1
SV1
SLEV
MF1,MF2
LD1
X71
CNS1
CNS2
ZNR
FUSE2
TB7
TB3
TB1
MC
DCL
NF
FUSE1
49C
CONNECTOR <MULTI SYSTEM>
CONNECTOR <CENTRALIZED CONTROL>
FUSE(2A)
DIGITAL INDICATION LED
<OPERATION INSPECTION INDICATION>
FAN MOTOR(INNER THERMOSTAT)
EXPANSION VALVE
SOLENOID COIL <HOT GAS BYPASS>
HIGH PRESSURE SENSOR
<DISCHARGE PRESSURE DETECTION>
MAGNETIC CONTACTOR
4-WAY COIL
RELAY <MAGNETIC CONTACTOR>
VARISTOR
FUSE(6.3A)
COMPRESSOR(INNER THERMOSTAT)
NOISE FILTER
TERMINAL BLOCK <POWER SUPPLY>
THERMISTOR <DISCHARGE TEMP. DETECTION>
THERMISTOR
<LOW PRESSURE SATURATED TEMP. DETECTION>
THERMISTOR <OUTDOOR TEMP. DETECTION>
THERMISTOR
<PIPE TEMP. DETECTION:JUDGING DEFROST>
CB1,CB2
DM
SMOOTHING CAPACITOR
DIODE MODULE
NAME
SYMBOL
9
8
7
6
5
4
3
2
1
0
NO FUSE BREAKER
25A
L1
L2
L3
N
X
X
1
RD2
1
(WHT)
CN3D
(WHT)
CN51
(WHT)
CN41
(WHT)
CN40
53214321
43214321
YLW
CB2
CB1
CNR
(WHT)
CNR
(WHT)
(RED)
CNA
<POWER SUPPLY BOARD>
(YLW)
49C
(RED)
CN1
FUSE1
(6.3A)
FUSE2
(2A)
SLEV
6
1
2
5764
49C
YLW
311234567
1234567
12367123456
1236
123671236
CN4
CN3
CN2
CN4CN3CN2
(YLW)
(YLW)
(WHT)
(YLW)
(RED)
(YLW)(WHT)
2
4321
12345678
10987654321
2876543
SW3
SW5
OFF
ON
OFF
ON
SW4
SW1
SW2
OFF
ON
1
1
ON
OFF
ON
OFF
(YLW)
ACCT
654321
132
CN1
3
63HS
654
1321231
13 2121
THHS
TH1TH2TH5TH6
63HS
THHS
TH2
TH6 TH5
TH1
(BLK) (WHT)
(GRN)
(GRN)
(WHT)
(WHT)
SLEV
(WHT)
BLU
-
+
~
~
~
LO1
LO2
LO3
LI3
E
N
LI2
LI1
(RED)
31
CNA
13
GRN
6
YLW
YLW
WHT
BLK
RS1
RB2
RB1
RD1
BLK
RED
BLU
WHT
GRN
E
P
N
C03
C02C01
N
P1PN1
10
3
5
6
8
10
3
568
+
–
IPM
WV
–
+
+
–
RED
WHT
BLK
3113
31
(BLU)
52C
X71
YLW
YLW
52C
31
(GRN)
21S4
X72
BLU
BLU
21S4
SV1
RED
RED
13
(BLK)
SV1
(WHT)
MF2
(WHT)
MF1
MF1
C1
31
WHT
BLU
WHT
BLU
RED
ORN
RED
ORN
BLU
WHT
31
BLU
52C
N
BLU
L3
BLK
L1
RED
S
M1
M2
S
M2
M1
LD1
SWU1
(1rd digit)
SWU2
(2rd digit)(3rd digit)
SWU3
<RESISTOR BOARD>
CNS1
(RED)
CNS2
(YLW)
F.C
2
1
1
GRN/YLW
ZNR
–
+
BLU
BLK
2
FOR CENTRALIZED
CONTROL
DC 30V (Non-polar)
WHT
BLK
WHT
RED
WHT
ORN
ORN
BRN
BRN
GROUND
TO INDOOR UNIT
CONNECTING WIRES
DC 30V (Non-polar)
POWER SUPPLY
3N~
380/220-415/240V
50Hz
380/220V
60Hz
W
V
U
U
X73
TB3
TB7
L2
TB1
MF2
C2
MC
DCL
DM
NF
<MULTI CONTROLLER BOARD>
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
1.Refer to the wiring diagrams of the indoor units for details on wiring of each indoor unit.
2.Symbols used in wiring diagram above are. :Terminal block, :Connector, :Insertion tab.
3.Self-diagnosis function
The indoor and outdoor units can be diagnosed automatically using the self-diagnosis switch(SW1) and LD1(LED indication)
found on the multi-controller of the outdoor unit.
LED indication : Set all contacts of SW1 to OFF.
78563421
(Example)
When the compressor and SV1 are
turned during heating operation.
Always lit---
SV1
21S4
18
7654
3
52C
2
Compressor operated
Indication
Bit
•During normal operation
The LED indicates the drive state of the controller in the outdoor unit.
This system has a scroll compressor. This compressor uses a low pressure shell that typically has a temperature in the
range 30-80°C.
In addition, compressor wiring should be in the direction of rotation to the right. Wire colors are red (U), white(V),
blue or black (W), yellow and yellow (thermal switch).
{2.5 O {0.6 O 500r
({4 O {3.0 O 200r) O 2{2.5 O {0.6 O 500r
47
7-3. SYSTEM CONTROL
For indoor-outdoor
transmission wire
Remote
control wire
indoor-outdoor trnasmission cable
2 remote controller
Group operation (maximum
16 indoor units)
Outdoor
unit
Indoor unit
Indoor unitIndoor unit
NR
NR
Remote controller
network
Indoor unitIndoor unit
NRNRNR
7-3-1. Operating a Single Refrigerant System
When operating either alone or as part of a group, a M-NET remote controller (NR) may be used to control a single
refrigerant system that does not overlap with any other system.
<Example of system arrangement>
Using a M-NET remote controller (NR)
✽ Address setting must be performed.
✽ The NR wire and indoor and outdoor transmission wires must be a non-polar two wire cable.
✽ One NR may be connected to a maximum of 16 indoor unit.
✽ Two NR units may be used to perform control tasks (the second one pressed will have priority if two are pressed
simultaneously).
✽ If the user plans to install multiple refrigerant
systems and a centralized controller in the
future, it is strongly suggested that a NR be
used.
48
7-3-2. System Controller (SC) to Perform Centralized Control
2) Indoor unit that may be connected with an SC are shown as follows.
Centralized controller
Multi-unit controller board
Group controller
3) There may be a maximum of two controllers when a group has 16 indoor units or less.
4) The transmission wire must have a power supply when an SC is used. Please connect the power supply for
the transmission wire to the centralized controller transmission wire.
SC with 2 units or less
SC with 3 to 5 units
5) Use the shielded wire of at least 1.25mm
50 group /50 units
24 group /50 units
8 group /16 units
Power supply for transmission wire PAC-SC33KU
Power supply for transmission wire PAC-SC34KU
2
for the indoor, outdoor, and centralized controller transmission
wires. In addition, all shielded wires in a system must be grounded at one point. If the length of the remote
control wire exceeds 10m, use an insulated wire for the extra portion.
49
7-3-3. Example for the System
OC
IC
(051)
M1 M2
S
TB512TB15
12
TB15
NR
(001)
IC
M1 M2
S
TB5
(002)
NR
M1 M2 SM1 M2 S
TB3TB7
L2
L1
r1L3
r2
TB6
(101)
TB6
(102)
OC
(051)
IC
M1 M2 S
TB5
(001)
IC
TB5
(002)
NR
TB6
(101)
NR
TB6
(151)
NR
TB6
(102)
NR
TB6
(152)
M1 M2 S
M1 M2 SM1 M2 S
TB3TB7
12
TB15
12
TB15
OC
IC
(051)
M1 M2 S
TB5
NR
(001)
IC
M1 M2 S
TB5
(002)
TB6
(101)
M1 M2 SM1 M2 S
TB3TB7
Main
Sub
12
TB15
12
TB15
• Example for wiring control cables, wiring method and address setting, permissible lengths, and the prohibited items are listed
in the standard system with detailed explanation.
The explanation for the system in this section : Use one single outdoor unit and multiple outdoor units for M-NET remote
control system.
Use one single outdoor unit and multiple indoor units in the multiple outdoor
units for the M-NET remote control system.
A. Example of a M-NET remote controller system (address setting is necessary.)
Example of wiring control cablesWiring Method and Address Setting
1. Standard operation
a. Use feed wiring to connect terminals M1 and M2 on
transmission cable block (TB3) for the outdoor unit
(OC) to terminals M1 and M2 on the transmission
cable block (TB5) of each indoor unit (IC). Use
non-polarized two wire.
b. Connect terminals M1 and M2 on transmission
cable terminal block (TB5) for each indoor unit with
the terminal block (TB6) for the remote controller
(NR).
c. Set the address setting switch as shown below.
• One remote controller for each
indoor unit.
• Inside ( ) Address: There is no need
for setting the 100 position on the
remote controller.
2. Operation using two remote controllers
• Using two remote controllers
for each indoor unit.
Main
Sub
3. Group operation
• Multiple indoor units operated
together by one remote
controller
The system 1-3 shown above are also available in combination.
Main
Sub
Unit
Indoor unit (IC)
Outdoor unit
(OC)
Remote
controller (NR)
Range
001 to 050
051 to 100
101 to 150
Setting Method
Use the most recent
address of all the indoor
unit plus 50.
Indoor unit address plus
100.
a. Same as above.
b. Same as above.
c. Set address switch as shown below.
Unit
Indoor Unit (IC)
Outdoor unit
(OC)
Main Remote
Controller (NR)
Sub Remote
Controller (NR)
Range
001 to 050
051 to 100
101 to 150
151 to 200
Setting Method
Use the most recent
address of all the indoor
units plus 50.
Indoor unit address plus
100.
Indoor unit address plus
150.
a. Same as above.
b. Connect terminals M1 and M2 on transmission cable
terminal block (TB5) of the IC main unit with the most
recent address within the same indoor unit (IC)
group to terminal block (TB6) on the remote controller.
c. Set the address setting switch as shown below.
Unit
IC (Main)
IC (Sub)
Outdoor Unit
Main Remote
Controller
Sub Remote
Controller
Range
001 to 050
001 to 050
051 to 100
101 to 150
151 to 200
Use the most recent address within
the same group of indoor units.
Use an address, other than that of
the IC (Main) from among the units
within the same group of indoor
units. This must be in sequence with
the IC (Main).
Use the most recent address of all
the indoor units plus 50.
Set at an IC (Main) address within
the same group plus 100.
Set at an IC (Main) address within
the same group plus 150.
Setting Method
d. Use the indoor unit (IC) within the group with the
most functions as the IC (Main) unit.
50
—
—
• Name, Symbol and the Maximum Units for Connection
OC
IC
MainSub
(051)
M1 M2 S
TB5
NR
(001)
IC
M1 M2 S
TB5
(002)
TB6
(102)
M1 M2 SM1 M2 S
TB3TB7
1
2
TB15
1
2
TB15
1
2
TB15
1
2
TB15
IC
M1 M2
SM1 M2
S
TB5
(001)
IC
TB5
(002)
NR
MainSubMainSub
TB6
(101)
NR
TB6
(151)
NR
TB6
(102)
NR
TB6
(104)
NR
TB6
(103)
M1 M2 SM1 M2 S
TB3TB7
OC
(051)
12
TB15
12
TB15
IC
M1 M2 S1
2M1 M2
S
TB5
TB6
TB15
1
2
TB15
(001)
IC
TB5
(002)
M1 M2 SM1 M2 S
TB3TB7
OC
(051)
MANR
(101)
Name
Outdoor unit
Indoor unit
Network remote
controller
Symbol
OC
IC
NR
VM
1/VM2/VMA/VMA1
VM
YM/YM1/YMA
VM
VM1
/VM2/VMA/VMA1
YM/YM1/YMA
Maximum units for connection
One OC unit can be connect to 2-5 units (Type 71:2-4units)
One OC unit can be connect to 1-8 units (Type 71:1-4units)
One OC unit can be connect to 1-8 units
Maximum two units for one, Maximum 10 units for one OC (Type 71:8units)
Maximum two units for one, Maximum 10 units for one OC (Type 71:8units)
Maximum two units for one, Maximum 16 units for one OC
Permissible LengthsProhibited items
Longest transmission cable length
(1.25 mm
L
1 + L2, L2 + L3, L3 + L1 [ 200m
2
)
Remote controller cable length
1. If 0.5 to 0.75 mm
2
R1, R2 [10m
2. If the length exceeds 10 meters,
the exceeding section should
be 1.25 mm
2
and that section
should be a value within the
total extension length of the
transmission cable and
maximum transmission cable
length. (L
3)
Same as above
• M-NET remote controller(NR) and MA remote controller(MA) cannot be used together.
• Do not connect anything with TB15 of indoor unit(IC).
• Use the indoor unit(IC)
address plus 150 as
the sub remote controller
address. In this case, it
should be 152.
• Three or more remote
controller (NR) cannot
be connected to one
indoor unit.
Same as above
• The remote controller
address is the indoor
unit main address plus
100. In this case, it
should be 101.
51
B. Example of a group operation system with two or more outdoor units and a M-NET remote controller.
M1 M2 S
M1 M2 S
TB7
TB3
IC
(051)
M1 M2 S
TB512TB15
12
TB15
12
TB15
12
TB15
12
TB15
12
TB15
12
TB15
NR
(001)
IC
M1 M2 S
TB5
(002)
IC
M1 M2 S
TB5
(004)
IC
M1 M2 S
TB5
(003)
IC
M1 M2 S
TB5
(005)
IC
M1 M2 S
TB5
(007)
IC
M1 M2 S
TB5
(006)
L1
L8
R1
R4
L9
L2L3L4
L5L6L7
TB6
(101)
NR
TB6
(105)
NR
TB6
(103)
NR
TB6
(155)
CN40
OC
Between
terminal blocks
M1 M2 S
M1 M2 S
TB7
TB3
(052)
OC
R2
R3
Shielded wire
(Shielding wires and address settings are necessary.)
Examples of Transmission Cable WiringWiring Method Address Settings
Group 3
Group 5Group 1
Sub remote
controller
( ) Address
a. Always use shielded wire when making connections between the outdoor unit (OC) and the indoor unit (IC), as well
for all OC-OC, and IC-IC wiring intervals.
b. Use feed wiring to connect terminals M1 and M2 and the ground terminal on the transmission cable terminal block
(TB3) of each outdoor unit (OC) to terminals M1 and M2 on the terminal S on the transmission cable block of the
indoor unit (IC).
c. Connect terminals M1 and M2 on the transmission cable terminal block of the indoor unit (IC) that has the most
recent address within the same group to the terminal block (TB6) on the remote controller (NR).
d. Connect together terminals M1, M2 and terminal S on the terminal block for central control (TB7) for the outdoor
unit (OC).
e. Use the grounded wire to connect the S-terminal on the transmission terminal of the outdoor unit (OC) and the
grounded terminal for the electrical components box.
f. On one outdoor unit only, change the jumper connector on the control panel from CN41 to CN40.
g. Connect the terminal S on the terminal block for central control (TB7) for the outdoor unit (OC) for the unit into which
the jumper connector was inserted into CN40 in Step above to the ground terminal ; in the electrical component
box.
h. Set the address setting switch as follows.
Unit
IC (Main)
IC (Sub)
Outdoor Unit
Main Remote Controller
Sub Remote Controller
Range
Use the most recent address within the same group of indoor units.
Use an address, other than that of the IC (Main) from among the units within
the same group of indoor units. This must be in sequence with the IC (Main).
Use the most recent address of all the indoor units plus 50.
Set at an IC (Main) address within the same group plus 100.
Set at an IC (Main) address within the same group plus 150.
001 to 050
001 to 050
051 to 100
101 to 150
151 to 200
Setting Method
i. The group setting operations among the multiple indoor units is done by the remote controller (NR) after the electrical
power has been turned on.
52
• Name, Symbol, and the Maximum Units for Connection
M1 M2 S
TB7
IC
(051)
M1 M2 S
TB512TB15
12
TB15
12
TB15
12
TB15
NR
Shielded wire
Remote
controller
(001)
IC
M1 M2 S
TB5
(002)
IC
M1 M2 S
TB5
(004)
IC
M1 M2 S
TB5
(003)
IC
M1 M2 S
TB5
(005)
IC
M1 M2 S
TB5
(007)
IC
M1 M2 S
TB5
(006)
TB6
(101)
NR
TB6
(105)
NR
TB6
(103)
NR
TB6
(155)
CN40
OC
M1 M2 S
TB7
(052)
OC
M1 M2 S
TB3
M1 M2 S
TB3
12
TB15
12
TB15
12
TB15
• Max length via outdoor units : L1+L2+L3+L4+L5+L6+L7+L9
L1+L2+L3+L4+L5+L6+L8+L9 [ 500 meters (1.25mm2)
• Max transmission cable length : L
• Remote controller cable length : R
1+L
2+L3+L4, L5+L6+L7, L5+L6+L8, L7+L8
1,R2, R3, R4 [ 10 meters (0.5 to 0.75mm
If the length exceeds 10 meters, use a 1.25 mm
8) should be included in the calculation of the maximum length and overall length.
Permissible Length
tion (L
[ 200 meters (1.25mm2)
2
)
2
shielded wire. The length of this sec-
Prohibited items
Group 3
Group 5Group 1
• The terminal S on the terminal block (TB7) for the central control panel should be connected to the ground terminal ;
of the electric components box for one outdoor unit only.
• Never connect together the terminal blocks (TB5) for transmission wires for indoor units (IC) that have been connected
to different outdoor units (OC).
• Set all addresses to ensure that they are not overlapped.
• M-NET remote controller and MA remote controller cannot be connected with indoor unit of the same group using
together.
53
C. Example of a MA remote controller system (address setting is not necessary.)
OC
IC
(000)
M1 M2
S2121
TB5 TB15TB15
MA
(000)
IC
M1 M2
S
TB5
(000)
MA
M1 M2 SM1 M2 S
TB3TB7
L2
L1
r1
r2
OC
(000)
IC
M1 M2 1212S
TB5 TB15TB15
(000)
IC
TB5
(000)
MAMA
M1 M2 S
M1 M2 SM1 M2 S
TB3TB7
MAMA
r3
r5
r
4
r
6
r7
r7
OC
IC
(000)
M1 M2 S 1 2
TB5 TB15
12
TB15
MA
(000)
IC
M1 M2 S
TB5
(000)
M1 M2 SM1 M2 S
TB3TB7
NOTE : In the case of same group operation, need to set the address that is only main indoor unit.
Example of wiring control cablesWiring Method and Address Setting
1. Standard operation
a. Use feed wiring to connect terminals M1 and M2 on
transmission cable block (TB3) for the outdoor unit
(OC) to terminals M1 and M2 on the transmission
cable block (TB5) of each indoor unit (IC). Use
non-polarized two wire.
b. Connect terminals 1 and 2 on transmission cable
terminal block (TB15) for each indoor unit with the
terminal block for the MA remote controller (MA).
• One remote controller for each
indoor unit.
• Inside ( ) Address: There is no need
for setting the 100 position on the
remote controller.
2. Operation using two remote controllers
• Using two remote controllers
for each indoor unit.
3. Group operation
• Multiple indoor units operated
together by one remote
controller
The system 1-3 shown above are also available in combination.
a. The same as above.
b. The same as above.
c. In the case of using tow remote controllers, connect
terminals 1 and 2 on transmission cable terminal
block (TB15) for each indoor unit with the terminal
block for tow remote controllers.
· Set the sub remote controller position for one of
MA remote controller’s main switch.
Refer to the installation manual of MA remote
controller
a. The same as above.
b. The same as above.
c. Connect terminals 1 and 2 on transmission cable ter-
minal block (TB15) of each indoor unit, which is doing
group operation with the terminal block the MA remote
controller. Use non-polarized tow wire.
d. In the case of same group operation, need to set the
address that is only main indoor unit. Please set the
address of the indoor unit with the most functions in
the same group in the number that 01-50 is young.
54
Permissible LengthsProhibited items
IC
M1 M2 S1
2M1 M2
S
TB5 TB15
1
2
TB15
(001)
IC
TB5
(002)
M1 M2 SM1 M2 S
TB3TB7
OC
(051)
MAMA
IC
M1 M2 S1
2M1 M2
S
TB5 TB15
1
2
TB15
(000)
IC
TB5
(000)
M1 M2 SM1 M2 S
TB3TB7
OC
(000)
MAMAMAMAMA
IC
M1 M2 S1
2M1 M2
S
TB5 TB15
1
2
TB15
(000)
IC
TB5
(000)
M1 M2 SM1 M2 S
TB3TB7
OC
(000)
MAMANR
Longest transmission cable length
L
[ 200m (1.25 mm2)
1 + L2
MA remote controller cable length
R
1, R2 [ 200m (0.3 ~ 1.25 mm
2
Longest transmission cable length
The same as above.
MA remote controller cable length
3 +R4, R5 +R6 [ 200m
R
(0.3 ~ 1.25 mm
2
)
The MA remote controller and the
M-NET remote controller cannot be
used together with the indoor unit
)
the of the same group.
Three MA remote controller or
more cannot be connect with the
indoor unit of the same group.
Longest transmission cable length
The same as above.
MA remote controller cable length
7 +R8 [ 200m (0.3 ~ 1.25 mm
R
The second MA remote control is
connected with the terminal
block(TB15) for the MA remote con-
2
)
trol of the same indoor unit(IC) as
the first remote control.
55
D. Example of a group operation with two or more outdoor units and a MA remote controller.
M1 M2 S
M1 M2 S
TB7
TB3
IC
(051)
M1 M2 S 1 2
TB5 TB15
MA
(001)
IC
M1 M2 S
TB5
(002)
IC
M1 M2 S
TB5 TB15
(004)
IC
M1 M2 S
TB5
(003)
IC
M1 M2 S
TB5 TB15
(005)
IC
M1 M2 S
TB5 TB15TB15TB15
(007)
IC
M1 M2 S
TB5 TB15
(006)
L
1
L8
R1
R4
L9
L2L3L4
L5L6L7
MA
MA
MA
Sub remote
controller
CN40 CN41
CN41
OC
Between
terminal blocks
M1 M2 S
M1 M2 S
TB7
TB3
(052)
OC
R2
R3
Shielded wire
12
12
1212
1212
(Shielding wires and address settings are necessary.)
Examples of Transmission Cable WiringWiring Method Address Settings
Group 3
Group 5Group 1
( ) Address
a. Always use shielded wire when making connections between the outdoor unit (OC) and the indoor unit (IC), as well
for all OC-OC, and IC-IC wiring intervals.
b. Use feed wiring to connect terminals M1, M2 and S and the ground terminal on the transmission cable terminal block
(TB3) of each outdoor unit (OC) to terminals M1, M2 and S on the transmission cable block (TB15) of the
indoor unit (IC).
c. Connect terminals M1 and M2 on the transmission cable terminal block of the indoor unit (IC) that has the most
recent address within the same group to the terminal block on the remote controller (MA).
d. Connect together terminals M1, M2 and terminal S on the terminal block for central control (TB7) for the outdoor
unit (OC).
e. Use the grounded wire to connect the S-terminal on the transmission terminal of the outdoor unit (OC) and the
grounded terminal for the electrical components box.
001 to 050
001 to 050
051 to 100
Range
Use the most recent address within the same group of indoor units.
Use an address, other than that of the IC (Main) from among the units within
the same group of indoor units. This must be in sequence with the IC (Main).
Use the most recent address of all the indoor units plus 50.
f. On one outdoor unit only, change the jumper connector on the control panel from CN41 to CN40.
g. Connect the terminal S on the terminal block for central control (TB7) for the outdoor unit (OC) for the unit into which
the jumper connector was inserted into CN40 in Step above to the ground terminal ; in the electrical component box.
h. Set the address setting switch as follows.
Unit
IC (Main)
IC (Sub)
Outdoor Unit
Setting Method
56
• Name, Symbol, and the Maximum Units for Connection
M1 M2 S
TB7
IC
(051)
M1 M2 S 1 21 21 2
TB5 TB15
12
TB15TB15TB15
MA
Shielded wire
(001)
IC
M1 M2 S
TB5
(002)
IC
M1 M2 S
TB5
(004)
IC
M1 M2 S
TB5
(003)
IC
M1 M2 S
TB5
(005)
IC
M1 M2 S
TB5
(007)
IC
Group 1Group 3Group 5
M1 M2 S
TB5
(006)
MA
MA
MA
CN40
OC
M1 M2 S
TB7
(052)
OC
M1 M2 S
TB3
M1 M2 S
TB3
1212
TB15TB15
12
TB15
• Max length via outdoor units : L1+L2+L3+L4+L5+L6+L7+L9
L1+L2+L3+L4+L5+L6+L8+L9 [ 500 meters (1.25mm2)
• Max transmission cable length : L
• Remote controller cable length : R
1+L2+L3+L4, L5+L6+L7, L5+L6+L8, L7+L8
1,R2, R3, R4 [ 10 meters (0.5 to 0.75mm
If the length exceeds 10 meters, use a 1.25 mm
tion (L
Permissible Length
8) should be included in the calculation of the maximum length and overall length.
[ 200 meters (1.25mm2)
2
)
2
shielded wire. The length of this sec-
Prohibited items
• The terminal S on the terminal block (TB7) for the central control panel should be connected to the ground terminal ;
of the electric components box for one outdoor unit only.
• Never connect together the terminal blocks (TB5) for transmission wires for indoor units (IC) that have been connected to
different outdoor units (OC).
• M-NET remote controller and MA remote controller cannot be connected with the indoor unit of the same group wring
together
57
PAR-20MAA
ON/OFF
TEST RUN
˚C
1Hr.
FILTER
CHECK TEST
TEMP.
TIMER SET
Check code indicator (see NOTE 1)
Test run remaining time indicator (see NOTE 3)
Display panel
ON/OFF button 9
ON/OFF LED (Lights up in operation)
LOUVER button 6
TEST RUN button 2
AIR DIRECTION button 2
AIR SPEED button 5
TEST RUN indicator
Indoor unit liquid pipe temperature indicator
(see NOTE 4)
(Cooling/Heating)
OPERATION
SWITCH button
3,4
Control panel
8TROUBLESHOOTING
8-1. CHECK POINTS FOR TEST RUN
8-1-1. Procedures of test run
(1) Before test run, make sure that following work is completed.
• Installation related :
Make sure that the panel of cassette type and electrical wiring is done.
Otherwise electrical functions like auto vane will not operate normally.
• Piping related :
Perform leakage test of refrigerant and drain piping.
Make sure that all joints are perfectly insulated.
Check stop valves on both liquid and gas side for full open.
• Electrical wiring related :
Check ground wire, transmission cable, remote controller cable, and power supply cable for secure connection.
Make sure that all switch settings of address or adjustments for special specification systems are correctly settled.
(2) Safety check :
With the insulation tester of 500V, inspect the insulation resistance.
Do not touch the transmission cable and remote controller cable with the tester.
The resistance should be over 1.0 MΩ. Do not proceed inspection if the resistance in under 1.0 MΩ.
Inspect between the outdoor unit power supply terminal block and ground first, metallic parts like refrigerant pipes or the electrical box next,
then inspect all electrical wiring of outdoor unit, indoor unit, and all linked equipment .
(3) Before operation :
a) Turn the power supply switch of the outdoor unit to on for compressor protection. For a test run, wait at least 12 hours from this point.
b) Register control systems into remote controller(s). Never touch the on/ off switch of the remote controller(s). Refer to “ 8-1-2 M-NET
Remote Controller Settings” on page 59 as for settings . In MA remote controller(s), this registration is unnecessary.
(4) More than 12 hours later form power supply to the outdoor unit, turn all power switch to on for test run. Perform test run according to the
“Operation procedure” table of the bottom of this page. While test running, make test run reports .
(5) When you deliver the unit after test run, instruct the end user for proper usage of the system using owners’ manual and the test run report
you made to certificate normal operation. If abnormalities are detected during test run, refer to “ 8-1-3 Countermeasures for Error During
Test Run” on page 61. As for DIP switch setting of outdoor unit, refer to” 8-5. INTERNAL SWITCH FUNCTION TABLE” on page 84.
Operation procedure
1 Turn on the main power supply the all units at least 12 hrs. before test run. ”HO” appears on display panel for 3 min.
2 12 hrs later, press TEST RUN button twice to perform test run. “TEST RUN “ appears on display panel.
3 Press OPERATION SWITCH button to make sure that air blows out.
4 Select Cooling (or Heating) by OPERATION SWITCH button to make sure that cool (or warm) air blow out.
5 Press Fan speed button to make sure that fan speed in changed by the button.
6 Press AIR DIRECTION button or LOUVER button to make sure that air direction is adjustable(horizontal, downward, upward, and each angle).
7 Check outdoor fans for normal operation.
8 Check interlocked devices (like ventilator) for normal operation, if any. This is the end of test run operation.
9 Press ON/OFF button to stop and cancel test run.
NOTE 1 : If error code appears on remote controller or remote controller malfunction , refer to “ 8-1-3 Countermeasures for Error During Run”
on page 61.
NOTE 2 : During test run operation 2-hours off timer activates automatically and remaining time is on remote controller and test run stops 2 later.
NOTE 3 : During test run, the indoor liquid pipe temperature is displayed on remote controller instead of room temperature.
NOTE 4 : Depend on a model, “This function is not available” is appears when air direction button is pressed, however, this is not malfunction.
58
8-1-2. Special Function Operation and Settings for M-NET Remote Controller
The addresses of indoor
unit and linked units are
displayed simultaneously.
(alternating
display)
These alternating IC or LC displays will appear
when entry is completed normally.
A flashing “88” will appear if there is a
problem with the entry (indicating that the
unit does not exist).
• It is necessary to perform “group settings” and “paired settings” at making group settings of different refrigerant
systems (multiple outdoor unit).
(A) Group settings: Enter the indoor unit controlled by the remote controller, check the content of entries, and clear
entries, etc.
(B) Paired settings: Used to set the linked operation of a Lossnay unit.
(1) Entering address: Follow the steps below to enter the addresses of the indoor unit using the remote controller.
a) Group settings
• Turning off the remote controller: Press the ON/OFF button to stop operation (the indicator light will go off).
• Changing to indoor unit address display mode: If the FILTER and k buttons on the remote controller are
pressed simultaneously and held for two seconds, the display shown in Figure 1 will appear.
• Changing address: Press the temperature adjustment buttons to change the displayed address to the
address to be entered.
• Entering the displayed address: Press the TEST RUN button to enter the indoor unit with the displayed address.
The type of the unit will be displayed as shown in Figure 2 if entry is completed normally.
If a selected indoor unit does not exist, an error signal will be displayed as shown in Figure 3. When this happens,
check whether the indoor unit actually exists and perform entry again.
• Returning to the normal mode after completing entry: Press the FILTER and k buttons simultaneously and
hold for two seconds to return to the normal mode.
Figure 1 (A) Group setting display
b) Paired Settings
• Turn off the remote controller: Press the remote controller’s ON/OFF button to turn it off (the indicator light will go off).
• Put in indoor unit address display mode: Press the FILTER and k buttons on the remote controller simultaneously
and hold for two seconds.
✻The above steps are the same as when making group settings (A).
• Changing to the linked operation unit address display state: The display shown in Figure 4 will appear when the
button on the remote control is pressed.
• Displaying the address of the Lossnay unit and linked indoor unit: In this situation, the indoor unit
number will be the lowest address of the group. The Lossnay unit will not operate if this setting is
incorrect.
✻If the temperature adjustment buttons are pressed, the address may be changed to the indoor unit that are
to be linked.
✻If the time setting buttons are pressed, the address of the linked units may be changed to the address where
it is desired to enter the Lossnay .
• Linking the Lossnay and the indoor unit: The display shown in Figure 5 will appear when the TEST RUN
button is pressed. The indoor unit whose address is displayed and the Lossnay unit with a linked address
will operate in a linked manner.
✻If it is desired to display the address of the Lossnay in the indoor unit address, display the indoor
unit address in the linked unit address, and the above content will also be recorded.
✻ Apart from the indoor unit with the lowest address in the group, display and enter the addresses of the other indoor unit
that are to be linked with the Lossnay unit.
• Returning to the normal mode after completing entry: Press the FILTER and k buttons on the remote controller
simultaneously and hold for two seconds to return to the normal mode.
Figure 2 Normal completion of entry
Figure 3 Entry error signal
Flashing “88” indicates entry errorType of unit is displayed
a
Figure 4 (B) Making paired settings
Figure 5 Completing normal entry
59
(altenating
display)
"--" will appear in the unit type display location when an address has
been cleared normally.
"88" will appear in the unit type display location when an abnormality
has occurred during clearing.
(2) Address check: Refer to section (1) regarding address entry.
"88" will appear in the room temperature display location.
"--" will appear in the room temperature
display location.
a) In making group settings:
• Turn off the remote controller: Press the remote controller's ON/OFF button to stop operation (the indicator light will go off).
• Locate the indoor unit address display mode: Press the FILTER and k buttons on the remote controller simultaneously
and hold for two seconds.
• Display indoor unit address: The entered indoor units address and type will be displayed each time the button is pressed.
✻ When one entry is made, only one address will be displayed no matter how many times the w button is pressed.
• Returning to the normal mode after completing check: Simultaneously press the FILTER and k buttons on the remote
controller and hold for two seconds to return to the normal mode.
b) In making paired settings:
• Turn off the remote controller: Press the remote controller's ON/OFF button to stop operation (the indicator light will go off).
• Put in indoor unit address display mode: Press the FILTER and k buttons on the remote controller simultaneously and
hold for two seconds.
• Changing to the linked operation unit address display state: Press the a button on the remote control.
• Displaying the address of the indoor unit to be checked: Change the address to that of the indoor unit to be checked by press-
ing the temperature adjustment buttons .
• Displaying the address of the linked Lossnay unit: Press the w button to display the addresses of the linked Lossnay and
indoor unit in alternation.
• Displaying the addresses of other entered units: The addresses of the other entered units will be displayed in alternating fash-
ion after resting the w button again.
• Returning to the normal mode after completing the check: Simultaneously press the FILTER and k buttons on the remote
controller and hold for two seconds to return to the normal mode.
(3) Clearing an address: Refer to section (1) regarding the address entry and section (2) regarding checking addresses.
a) In making group settings:
• Turn off the remote controller: The procedure is same as a) in (2) Address check.
• Put in the indoor unit address display mode: The procedure is same as a) in (2) Address check.
• Displaying the indoor unit address to be cleared: The procedure is same as a) in (2) Address check.
• Clearing indoor unit address : ......Pressing the q button on the remote controller twice will clear the address entry of the
displayed indoor unit, resulting in the display shown in Figure 6.
The display shown in Figure 7 will appear if an abnormality occurs and the entry is not cleared.
Please repeat the clearing procedure.
• Returning to the normal mode after clearing an address: The procedure is same as a) in (2) Address check.
Figure 6 Display after address has been
cleared normally
Figure 7 Display when an abnormality
has occurred during clearing
b) In making paired settings:
• Turn off the remote controller: The procedure is same as b) in (2) Address check.
• Put into the indoor unit address display mode: The procedure is same as b) in (2) Address check.
• Put into the linked unit address display mode: The procedure is same as b) in (2) Address check.
• Display the address of the Lossnay unit or the indoor unit to be cleared.
• Deleting the address of a linked indoor unit: Pressing the q button on the remote controller twice will clear the address
entry of the displayed indoor unit, resulting in the display shown in Figure 8.
• Returning to the normal mode after clearing an address: The procedure is same as b) in (2) Address check.
Figure 8 Display after address has been cleared normally
60
8-1-3. Countermeasures for Error During Test Run
12 34 56 78 LD1
Check codeCheck codeTroubleTrouble
1102
1108
1302
1500
1501
1505
2502
2503
4115
4116
4220
4230
4250
5101
5102
5103
5105
5106
5110
5201
5300
Discharge temperature trouble
Compressor's inner thermal sensor trouble
High pressure trouble
Excessive refrigerant replenishment
Insufficient refrigerant
Vacuum operation protection
Drain pump trouble
Drain sensor trouble (THd)
Power synchronization signal trouble
Indoor unit fan rotation trouble
Inverter main voltage drop
Overheat protection of radiator panel
Multiple IPM errors (Over current trouble)
Intake thermistor trouble (TH21) or discharge
thermistor trouble (TH1)
(Communication trouble with transmission processor)
Transmission and reception error (No ACK error)
No response
MA communication receive signal error
(no receive signal)
MA communication send signal error
(starting bit detection error)
MA communication send error (H/W error)
MA communication receive error
(Synchronous recovery error)
Total capacity error
Capacity code error
Connecting unit number error
Address set error
Remote controller sensor trouble
Communication trouble with Power Board
(PUMY-125VMA PUMY-125VMA
1)
6600
6602
6603
6606
6607
6608
6831
6832
6833
6834
7100
7101
7102
7105
7111
0403
( )
• If a problems occurs during test run, a code number will appear in the temperature display area on the remote controller
(or LD1 on the outdoor unit), and the air conditioning system will automatically cease operating.
Determine the nature of the abnormality and apply corrective measures.
The operational status of the outdoor unit controller is displayed on the LD1 of the outdoor unit under normal conditions (when
all SW1’s are OFF)
Field
Display item
Example: When the air conditioner is in the heating mode and the SV1 and compressor turned on.
Discharge temperature abnormality
When the discharge temperature thermistor
(TH1) detects 125
;or more (1st detection),
the compressor stops and restarts operation
in 3 minutes.
1) Gas leakage, Gas shortage
Check the refrigerant amount.
When the thermistor detects 125
;or more
again (2nd detection) within 30 minutes
since the compressor has stopped, the
compressor stops and restarts operation in 3
minutes.
2) Overloaded operation
Check the indoor/outdoor unit operating
condition and status.
When the thermistor detects 125
;or more
again (3rd detection) within 30 minutes since
the compressor has stopped 2 times, the
compressor stops abnormally. <1102> is
displayed.
3) Indoor linear expansion valve
operation defective
Perform cool or heat operation to check
the condition.
When the thermistor detects 125; or
more after 30 minutes since the
compressor has stopped (1st or 2nd time),
it becomes the 1st detection or the same
performance as above-mentioned 1.
4) Ball valve operation defective
Check ball valve is fully opened.
It is being delay for abnormal stop during 30
minutes since the compressor has stopped.
In this time, check delay code <1202> will
be displayed.
5) Outdoor fan block and defective of
fan motor (heating mode)
Check the outdoor fan motor.
6) Gas leakage between high and low
pressure (Defective of 4-way valve or
compressor)
Check the operating condition.
7) Solenoid valve (SV1) performance
defective (control failure to prevent the
discharge temp. from rising by SV1)
Check the solenoid valve performance.
8) Thermistor defective
Check the thermistor resistance.
9) Input circuit defective of multi
controller board
Check the intake temperature in
discharge temperature thermistor (TH1)
by LD1. (See 5101 Discharge
temperature thermistor error)
1108
Compressor inner thermo abnormality
When the inner thermo performs (1st
detection) during the compressor operation,
the compressor stops and restarts operation
in 3 minutes.
1) Low voltage supplied to power supply
terminal block
Measure the terminal voltage.
When the inner thermo performs again (2nd
detection) within 30 minutes since the
compressor has stopped, or does not
recover within 30 minutes, it stops
abnormally. In this time <1108> is displayed.
2) Power supply L2 or L3 phase is
opened. (When L1 phase is opened,
power supply of the micro computer is
not supplied.)
Check the voltage reduction.
When the inner thermo performs after 30
minutes since the compressor has stopped
(1st stop), it is the 1st detection and
becomes the same performance as above-
mentioned
1.
3) Compressor failure (Over current by
motor rare short, etc.)
It is being delay for abnormal stop during
30 minutes since the compressor has
stopped. In this time, check delay code
<1208> will be displayed.
4) Overloaded operation
Check the open phase.
5) Gas leakage, Gas shortage
Check the coil resistance.
6) Inner thermo defective
Check the indoor/outdoor unit operating
condition and status.
7) Input circuit defective of multi
controller board or power supply board
Check the refrigerant amount.
Check the current flows in inner thermo.
When the inner thermo is normal and
input circuit is defective, even if the
inner thermo performs, the compressor
does not operate and becomes error in
30 minutes.
1302
High-pressure pressure abnormality
1) Indoor unit short cycle
When high-pressure pressure sensor
detects 2.94MPa or more (1st detection)
during the compressor operation, the
compressor stops and restarts operation in
3 minutes
2) Indoor unit filter clogging
Check the indoor unit.
3) Air flow capacity decrease due to
indoor fan dirt
Check the indoor unit filter.
4) Indoor heat exchanger dirt
Check the indoor fan.
Check the indoor unit heat exchanger.
1
2
3
4
5
1
2
3
4
1
62
Display
1302
Meaning and detecting method
2
When the sensor detects 2.94MPa or more
again (2nd detection) within 30 minutes
since the compressor has stopped, the
compressor stops again and restarts
operation in 3 minutes.
When the sensor detects 2.94MPa or more
3
again (3rd detection) within 30 minutes
since the compressor has stopped, the
compressor stops again and restarts
operation in 3 minutes.
When the sensor detects 2.94MPa or more
4
again (4th detection) within 30 minutes
after 3rd compressor stop, it stops
abnormally.
In this time <1302> is displayed.
Causes
5) Indoor fan motor lockCheck the indoor fan motor.
6) Indoor fan motor failureCheck the indoor fan motor.
7) 4-way valve performance failure
(Stop in the middle of performance)
10) Indoor linear expansion valve
performance failure
11) Outdoor fan motor lock
12) Outdoor fan motor failure
Change COOL/HEAT operation mode
to perform the 4-way valve. If any
defective, replace the 4-way valve.
Check the ball valve full-opened.
Repair the defective points.
Operate COOL or HEAT operation,
and check the operation condition.
Check the outdoor unit fan motor.
Check the outdoor unit fan motor.
Check points
When the sensor detects 2.94MPa or more
5
after 30 minutes since the compressor has
stopped (1st or 2nd or 3rd time), it
becomes the 1st detection or the same
performance as above-mentioned
6
It is being delay for abnormal stop during
30 minutes since the compressor has
stopped. In this time, check delay code
<1402> will be displayed.
Note) For first 7 minutes in COOL or HEAT
starting, error detected pressure of highpressure pressure sensor is 3.14MPa.
1.
13) Outdoor unit short cycle
14) Outdoor heat exchanger dirt
15) Decrease in airflow capacity which
the outdoor unit intakes because of
intake defective of outer temperature
thermistor. (Intake less than the actual
outer air)
16) Indoor unit capacity codes miss
setting (If the capacity code is set
greatly, initial frequency rises and highpressure is easy to rise.)
17) Solenoid valve (SV1) performance
failure (High-pressure pressure cannot
be controlled by SV1)
18) Indoor thermistor (liquid pipe
temperature detection) detecting failure
(thermistor removed) (Hot adjust time
becomes long.)
19) High-pressure pressure sensor
defective
20) High-pressure pressure sensor
input circuit defective in multi controller
board.
Check the outdoor unit.
Check the outdoor unit heat
exchanger.
Check intake temperature of the outer
temperature thermistor by LD1.
(See 5106 Outer temperature
thermistor error)
Check the capacity set switch in the
indoor controller board. If it is wrong
setting reset it. Check is available for
the outdoor unit.
(See 7101 Capacity code error)
Check the solenoid valve
performance.
Check the thermistor installed
condition. Operate in trial mode and
check the pipe temperature change
by the remote controller.
Check the high-pressure pressure
sensor.
Check the high-pressure pressure
sensor.
1500Refrigerant over charged abnormality1) Refrigerant over chargedCheck the refrigerant amount.
When below 5 conditions are satisfied
1
during the compressor operation (1st
detection), the compressor stops and
restarts operation in 3 minutes.
1. Cool mode, outer temp. is 20
Heat mode, outer temp. is 15
; or more
; or less
2) Light-loaded operation (Wrong
determination)
3) Performance defective of the
indoor's linear expansion valve and
outdoor's electronic expansion valve.
Check the indoor/outdoor unit
operating condition and status.
Perform cool or heat operation to
check the condition.
63
Display
15002. The compressor has operated
1501
Meaning and detecting method
consecutively 20 minutes or more, since
the indoor unit operation capacity had
changed (including the compressor
operation start).
3. Operation frequency is 80Hz or more.
4. Discharge super heat is below 10
5. Sub cool step continues for 5 minutes
or more by SN=4.
2
Same condition as
within 60 minutes since the compressor
has stopped, it stops abnormally. In this
time, <1500> is displayed.
3
Same condition as
after 60 minutes since the compressor has
stopped (1st time), it becomes the first
detection and same performance as 1.
It is being delay for abnormal stop during
4
60 minutes since the compressor has
stopped. In this time, check delay code
<1600> will be displayed.
Refrigerant shortage abnormality
When the conditions of below detecting
1
mode 1 or 2 are satisfied (1st detection)
during the compressor operation, the
compressor stops and restarts operation in
3 minutes.
<Detecting mode 1>
When the below conditions are satisfied
completely.
1. SW5-5 is OFF.
2. Compressor is operating in HEAT mode.4) Error detection of discharge super
3. Discharge super heat is 70; or more.
4. Difference of outer temperature thermistor
(TH6) and outdoor piping temp. thermistor
(TH5) applies to the formula of (TH6-TH5)<5;.
5. High-pressure pressure sensor is below
1.18MPa.
<Detecting mode 2>
When the below conditions are satisfied
completely.
1. Compressor is operating.
2. When cooling, discharge super heat is
; or more.
80
When heating, discharge super heat is 90
or more.
When the conditions of detecting mode
2
1and 2are satisfied again (2nd detection)
within 30 minutes since the compressor has
stopped, it stops abnormally. In this time,
<1501> is displayed.
When the conditions of detecting mode
3
1and 2are satisfied again after 30 minutes
since the compressor has stopped (1st
time), it becomes the 1st detection and
same performance as above
It is being delay for abnormal stop during 30
4
minutes since the compressor has stopped.
In this time, check delay code <1600> will
be displayed.
1 is satisfied again
1 is satisfied again
1.
;.
Causes
4) Discharge super heat detection error
1 High-pressure pressure sensor
failure
2 Discharge temperature thermistor
failure
3 Thermistor input circuit defective in
the multi controller board., and highpressure pressure sensor input circuit
failure
1) Gas leakage, Gas shortageCheck the refrigerant amount.
2) When heating operation, refrigerant
shortage feeling operation
(When heating, air flow or thermo OFF
are mixed-operation, it cause a
refrigerant shortage operation.)
3) Ball valve performance failure (not
full opened.)
heat
1 High-pressure pressure sensor
defective
2 Discharge temperature thermistor
defective
3 Thermistor input circuit defective and
high-pressure pressure sensor
defective in multi controller board
;
5) Error detection of TH5/TH6
1
Check the high-pressure pressure
sensor.
Check the resistance of discharge
2
temp. thermistor.
Set the SW1 to and
3
check the high-pressure pressure
sensor level.
Set the SW1 to and
check the discharge temp. thermistor
level.
When the high-pressure pressure
sensor and discharge temp. thermistor
are normal, if the above mentioned
detecting pressure level and temp. are
big different from the actual pressure
and temp., replace the multi controller
board.
Check the operation condition and
refrigerant amount.
Check the ball valve is full opened.
Check the high-pressure pressure
1
sensor.
Check the resistance of discharge
2
temperature thermistor.
Set the SW1 to and
3
check the high-pressure pressure
sensor level.
Set the SW1 to and
check the discharge temp. thermistor
level.
When the high-pressure pressure
sensor and discharge temp. thermistor
are normal, if the above mentioned
detecting pressure level and temp. are
big different from the actual pressure
and temp. replace the multi controller
board.
Check the resistance of thermistor.
1
Check points
1 Thermistor defective
Set the SW1 to and
2 Thermistor input circuit defective in
multi controller board
2
check the outdoor pipe temp.
thermistor level.
3
Set the SW1 to and
check the outer temp.
thermistor level.
21345678
on
21345678
on
21345678
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21345678
on
21345678
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21345678
on
64
1505
Vacuum operation protection
PUMY-125VMA PUMY-125VMA1
When the suction pressure saturation
temperature thermistor (TH2) detects -13;
or less and ''[indoor temperature-liquid pipe
temperature][ 8deg'' for 3minutes
continuously, the 1st COOL operation
(compressor operation) after power supply
on, it stops abnormally. In this time, <1505>
is displayed
1) Ball valve performance failure (not
full opened.)
Check the ball valve is full opened.
2) Light-loaded operation (When outer
temperature is low, the operation is
liable to change to this mode.)
Check the indoor/outdoor unit
operating condition and status.
3) Low-pressure over suction by
refrigerant shortage
Check the refrigerant amount.
4) Pipe clogging and broken
5) Indoor linear expansion valve
performance defective
Repair the defective points.
Perform cool or heat operation to
check the condition.
2502Drain pump abnormality
When either of the undermentioned
condition is satisfied (when determined
drain sensor goes under water) while the
indoor unit operation (excluding the case of
abnormal stop) and after 3minutes since the
drain pump has operated, the indoor unit
stops abnormally (however fan continues
the normal control). In this time, <2502> is
displayed.
1) Drain pump trouble
Check the drain pump.
Performance
· Turn on the side heater of drain sensor,
then when temperature up from the
detected temperature before turning on is
below 20; during 40 seconds.
2) Drain defective
Please confirm whether water can be
drained.
· The detected temperature is below 63;
after 40seconds since the side heater of
drain sensor has turned on.
· Drain pump clogging
· Drain pipe clogging
3) Open circuit of drain sensor side
heater
Confirm the resistance of the drain
sensor side heater. (approx. 82' at
normal between connector CN50 1
and 3 in the indoor controller board)
Check the connector contact failure.
4) Contact failure of drain sensor
connector
Check the drain sensor lead- wire
mounted.
5) Dew condensation on drain sensor
Check the filter clogging
· Drain water descends along lead wire.
· Drain water waving due to filter
clogging.
6) Indoor controller board defective
If the above mentioned checkpoints
has any problem, replace the indoor
controller board.
· Drain pump drive circuit failure
· Drain heater output circuit failure
7) Both of above mentioned 1)~6) and
the indoor linear expansion valve fullclosed failure (leakage) happens
synchronistically.
Check whether the indoor linear
expansion valve leaks or not.
When condition which the outdoor unit is
stopped forcibly consists, or the drain
sensor detects continuously to go under
water 5 times, and also detects ''[liquid pipe
temperature-suction temperature][ -10deg''
for 30minutes continuously, the indoor unit
stops abnormally (however, fan operates by
normal control) that indoor unit and
excluding [Fan mode or OFF] in same
refrigerant system. Also, the outdoor unit
which is connected to that indoor unit with
refrigerant system stops abnormality
(compressor is inhibited to operation). In
this time, <2502> is displayed.
When the suction pressure saturation
temperature thermistor(TH2) detects -20; or
less for 4 consecutive minutes or more during
the 1st COOL operation (compressor
operation) after power supply on, it stops
abnormally. In this time, <1505> is displayed
Display
Meaning and detecting method
Causes
Check points
65
Display
Meaning and detecting method
2502Drain pump abnormality
(Note) Address/Attribute displayed on the
remote controller shows the indoor unit
which is cause of trouble.
<Detected timing>
Always detecting regardless of the indoor
unit status.
<Abnormality clear>
Abnormality is cleared by either of two of the
following;
· Reset power supply of the indoor unit and
outdoor unit in same refrigerant system,
which is the cause of trouble in the
refrigerant system.
· Reset power supply of the indoor unit,
which is the cause of trouble. (However,
power supply interception of 10 minutes or
more is necessary.)
(Note) Above 1 and 2 detects independently.
2503Drain sensor (THd, DS) abnormality
When the drain sensor detects short/open
while the operation.
2) Thermistor wiring disconnection or
half disconnection
Check points
Check whether the indoor controller
1
board connector (CN50) is
disconnected or not.
2
Check whether the thermistor wiring is
disconnected or not.
4115
Power supply synchronous signal
abnormality
When power supply synchronous signal
1
(once a second) is not read, stop the
compressor and restarts operation in 3
minutes. (When the synchronous signal is
not read just before compressor start, the
compressor does not start and stops
operation 3 minutes.)
2
For 30minutes after the compressor stop
(PUMY-125VMA PUMY-125VMA
1:
4minutes), it is being to delay abnormal stop.
Then, when SW1 is set, the outdoor units
address No. and check code <4165> blinks
on the 4 digit digital display alternately.
1) Disconnection or contact failure by
loose of connector (CN2) is connected
to power supply board.
2) Power supply synchronous detected
circuit failures in the power supply
board.
3) Power supply synchronous detected
circuit failure in the multi controller
board.
Check the resistance of thermistor.
3
0;···15k'
10;···9.6 k'
20;···6.3 k'
30;···4.3 k'
40;···3.0 k'
If abnormality is not found in the
4
method of the above-mentioned from
1 to 3, it is defective of the indoor
controller board.
Check the connector insertion.
Replace the power supply board.
Replace the multi controller board.
3
When power supply synchronous signal
(once a second) is not read again during
abnormal delay, the compressor stops
abnormally. Then, the outdoor units
address No. and check code <4115> blinks
on the 4 digit digital display alternately.
66
4116Fan rotational frequency abnormality
(Detected only PKFY-P·VAM-A)
1) Fan rotational frequency detecting
connector (CN33) disconnection in the
indoor controller board.
Display
Meaning and detecting method
Causes
Check points
Check whether the connector (CN33)
in the indoor controller board is
disconnected or not.
When rotational frequency of the fan is
detected 180rpm or less, or 2000rpm or
more (1st detection) while the indoor unit
fan operation, the fan stops for 30seconds.
2) Fan output connector (FAN1)
disconnection in the indoor power
board.
Check whether the connector (FAN1)
in the indoor power board is
disconnected or not.
When the rotational frequency of the fan is
detected 180rpm or less, or 2000rpm or
more again after the fan restarts, the indoor
unit stop abnormally (fan stops). In this
time, <4116> is displayed.
3) Fan rotational frequency detecting
connector (CN33) wiring breakage in
the controller board or fan output
connector (FAN1) breakage in the
indoor power board
Check whether the wiring is
disconnected or not.
4) Filter clogging Check the filter.
5) Indoor fan motor trouble Check the indoor fan motor.
When there is no problem in the
above-mentioned from 1 to 5;
6) Fan rotational frequency detecting
circuit failure in the indoor controller
board or fan output circuit failure in the
indoor power board.
(1) In the case of abnormality after the
fan operation;
Replace the indoor controller board.
When the fan does not recover even if
the indoor controller board is replaced,
replace the indoor power board.
(2) In the case of abnormality without
fan operation, replace the indoor
power board.
4220
PUMY-125VMA PUMY-125VMA1
Abnormality such as overvoltage or voltage
shortage and abnormal
synchronous signal to main circuit
Abnormal if any of followings are detected
during compressor operation;
• Decrease of DC bus voltage to 270V
• Instantaneous decrease of DC bus
voltage to 200V
• Increase of DC bus voltage to 400V
1) Decrease of power supply voltage
2) Disconnection of compressor wiring
3) Defective 52C
4) Disconnection or loose connection of
CN52C
5) Defective active filter module (ACTM)
6) Defective active filter module (ACTM)
drive circuit of outdoor power board
7) Disconnection or loose connection of
CNAF
8) Defective 52C drive circuit of outdoor
control board
9) Disconnection or loose connection of
CN5
10) Disconnection or loose connection
of CN2
Check the facility of power supply.
Correct the wiring (U•V•W phase) to
compressor.
Replace 52C.
Check CN52C wiring.
Replace active filter module (ACTM) .
Replace outdoor power board.
reduces extremely during the compressor
operation, the compressor stops and
restarts operation in 3minutes.
It is being delay to stop abnormally for 30
2
minutes after the compressor stop. Then,
when SW1 is set, the outdoor unit address
No. and check code <4320> blinks
alternately on the 4 digit digital display.
SW1 setting
When detecting abnormality of direct bus-
3
21345678
on
bar voltage decrease again during being
delay abnormality, it performs the same
action as 1. Also, when the abnormality is
not detected, it operates normally.
Hereafter, action 1 is repeated until 5th
abnormal detection.
Causes
1) Power supply terminal voltage is low.
Measure the terminal voltage, and
check whether the voltage decreases
Check points
or not.
2) Power supply L2,L3-phase is
Check the power supply is opened.
opened.
3) Diode stack (Diode module)
Check the resistance of diode stack.
defective.
4) Connector lead wire disconnection,
Check the defective points.
contact failure.
Power supply board connecting
connector (CND)-Between smoothing
capacitor (CB1 and CB2).
Power supply board connecting
connector (52C)-Between electronmagnetic contactor (52C)
5) Connector (CN2) disconnection,
Check the connector insertion.
contact failure.
6) Instant power failureIt happens by accident, and does not
have the possibility to happen again.
4230
4
When the 6th voltage decrease of direct
bus bar is detected during being delay
abnormality, it stops abnormally. In this
time, the outdoor unit address No. and
check code <4220> blinks alternately on
the 4 digit digital display.
Radiator panel shield temperature
1
When the radiator panel temperature thermistor
(THHS(A/B)) detects abnormality (1w
detection) stops the outdoor unit once
and restarts operation in 3minutes.
2
It is being delay to stop abnormally for
30minutes after the compressor stop.
(PUMY-125VMA PUMY-125VMA1 :
10 minutes)
Then, when SW1 is set, outdoor unit address
No. and check delay code <4330> blinks
alternately on the 4 digit digital display.
21345678
on
When the radiation shield temperature
3
thermistor (THHS(A/B)) detects abnormality
again (2nd detection) during delay
abnormality, perform the same action as 1.
When the radiation shield temperature
4
thermistor (THHS(A/B)) detects abnormality
on 3rd time during delay abnormality, it
stops abnormally. (PUMY-125VMA PUMY125VMA
1 : 5 minutes)
Then, the outdoor unit address No. check
code <4230> blinks alternately on the 4
digit digital display.
Abnormality detecting temperature in
radiation shield temperature thermistor
Type
71VM/VM
125VM/VM1/VM2
125YM/YM1/YMA
125VMA/VMA1
Abnormal temperature (;)
1/VM2
73
84
85
7) Lightening serge, single interruption
by external noise.
8) Direct bus-bar voltage shortage
It happens by accident, and does not
have the possibility to happen again.
Replace the power supply board.
detecting circuit failure in power supply
board
1) Outdoor fan motor lockCheck the outdoor fan motor.
2) Outdoor fan motor troubleCheck the outdoor fan motor.
3) Block of duct which cooled air
passes
Check whether the air duct for cooling
is opened.
4) Surrounding temperature-riseCheck whether there is a heat source
in surroundings of the outdoor unit.
(Surroundings temperature upper limit
is 46;)
5) Thermistor failure Check the resistance of thermistor.
1
(Use tester)
21345678
6) Thermistor input circuit failure in the
multi controller board
2
Change the SW1 to and
check the temperature in radiation
on
shield temperature thermistor.
When there is a big difference between
the detected temp. and thermistor
temp. replace the multi controller
board.
68
Display
4250
Meaning and detecting method
IPM abnormality
Over current limited
(When the compressor is interrupted by
over current at its start-up.)
1
When over current limit is detected within
30seconds from start-up, the compressor
stops and restarts in 3minutes.
While the compressor stops for 3minutes,
2
confine the current-carry.
When SW1 setting during delay of
3
interruption abnormality stop, the outdoor
unit address No. and check delay code
<4350> blinks alternately on the 4 digit
digital display.
SW1 setting
4
When the compressor is interrupted again
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on
by over current after restarting in 3minutes,
it stops and restarts in 3minutes. Perform
the same action as 2 and 3.
5
When the compressor is not interrupted
within 30seconds after restarting in 3minutes,
clear the delay of limited abnormal stop and
back to normal.
When the above action 4 is repeated and
6
the compressor is interrupted within
30seconds after 7th start-up
(PUMY-125VMA PUMY-125VMA
1: after
15th start-up),
or the compressor is interrupted during
confined the current-carry, it stops
abnormally. Then, the outdoor unit address
No. and check delay code <4250> blinks
alternately on the 4 digit digital display.
(When the compressor is interrupted by
over current during the operation)
When over current limit is detected after
1
30seconds from start-up, the compressor
stops and restarts in 3minutes.
2
The compressor is being delay to stop
abnormally for 5minutes after the
(
compressor stop.
125VMA1 : 6minutes
PUMY-125VMA PUMY-
)
Then, the outdoor unit address No. and
check delay code <4350> blinks alternately
on the 4 digit digital display.
SW1 setting
3
When the compressor is interrupted again
21345678
on
within 2minutes after restarting in
3minutes, it stops abnormally. Then, the
outdoor unit address No. and check delay
code <4250> blinks alternately on the 4
digit digital display.
PUMY-125VMA : 6minutes, 4minutes.
4
When the compressor is not interrupted
within 2minutes (PUMY-125VMA PUMY125VMA1 : 3minutes
)
after restarting in 3minutes, it becomes the
1st detection and performs the same action
as 1 and 2.
Causes
PUMY-71VM PUMY-125VM PUMY-125YM
PUMY-71VM
1 PUMY-125VM1 PUMY-125YM1
PUMY-71VM2 PUMY-125VM2 PUMY-125YMA
1) Single interruption by external noise.
2) Single interruption by lightening
serge
3) Power supply abnormality
(a) Voltage decrease to 340V or less.
(b) Power supply open-phase
(Current increase in the compressor by
the voltage decrease)
4) Diode stack defective
When it is opened-phase, same
phenomenon occurs as power supply
open-phase.
5) Disconnection of connector and
lead wire, and miss-wiring
Between multi controller board (CN4)
and power supply board (CN4)
6) IPM (intelligent power module)
drive circuit in the gate amplifier
defective
7) IPM (intelligent power module)
drive signal output circuit defective,
power factor detecting circuit failure
in the multi controller board.
8) Current detection defective
(AC,CT)
9) Compressor lock
10) Liquid sealing start-up of the
compressor
11) Open-phase at the compressor
side
12) IPM (intelligent power module)
failure
13) Power supply board abnormality
detecting circuit failure and IPM drive
power supply circuit failure
69
Check points
The interruption happens by accident.
Since the interception only once
returns automatically after restarting in
3minutes, the possibility to stop
abnormally is very few.
Measure a receiving voltage and
1
check the power supply capacity
2
Check whether the phase is opened
or not.
Check from 4) to 13) by following
procedure;
3
Start-up the compressor and check
the status of interrupting.
(1) When the compressor stops
(output signal stop) after immediately
after output signal comes out and is
interrupted abnormally.
Generation of short-circuit
current is assumed.
(5),6),7),12),13))
(2) After 5seconds of start-up, when
the compressor stops by interruption,
being delay and repeats to confine
current-carry for 3minutes restartup interruption to confine
current-carry restart-up and
becomes interruption-abnormality
after approx. 18minutes from start-up.
The compressor is assumed not to
start-up by torque shortage or lock.
(5), 6), 7), 9), 10), 11), 12))
(3) When the compressor stops after
a while by the interception though the
compressor starts once, and restarts
in 3minutes.
It is presumed to stop since the
frequency goes up and the load grows
though the compressor starts. (4), 5),
6), 7), 8))
Check the miss-wiring, terminal
4
loosing and disconnection of
connector and lead wire.
Repair of defective points. (5), 11))
Check the resistance of IPM.
5
In the case of abnormality, replace
the gate ampere board and IPM.
Check the resistance of diode stack.
6
In the case of abnormality, replace
the diode stack.
When excluding of 456,
7
Switch off and disconnect the
connection of the compressor after
confirming charge of main circuit
electrolysis capacitor is discharged
enough. Then, switch on and operate
in no-load.
(1) When the compressor is interrupted
again.
Replace the power supply board
when the compressor does not back to
normal even if the gate amplifier board
is replaced.
Replace the multi controller board
when the compressor does not back to
normal even if the power supply board
is replaced.
(2) Check the balance of inverter
output voltage. If it is unbalanced,···
Replace the power supply board
when the compressor does not back to
normal even if the gate ampere is
replaced.
Replace the multi controller board
when the compressor does not back to
normal even if the power supply board
is replaced.
To be continued on the next page.
From the preceding page.
Display
4250
Meaning and detecting method
Causes
PUMY-125VMA PUMY-125VMA1
1) Stop valve of outdoor unit is closed.
Check points
8
When not applying from 4 to 7, it
applies to 9) and 10).
Check the compressor.
In case of 10), recheck the compressor
again after 12 hours with former power
supply.
Open stop valve.
1
5101
Suction temperature thermistor (TH21)
abnormality
When controller detects short (high
temp.)/open (low temp.) in thermistor
during the operation, the operation stops
and the operation changes to protect
mode of restarting in 3minutes. If the
thermistor does not recover in 3minutes,
the operation stops abnormally. In this
time, <5101> is displayed. Then, if the
thermistor recover in 3minutes, it operates
normally.
Short: Detected 90; or more
Open: Detected —40; or less
Discharge temperature thermistor (TH1)
abnormality
1
When controller detects short/open in
thermistor during the operation, the
outdoor unit stops once and restarts
operation in 3minutes. When the detected
temperature is normal just before
restarting, the outdoor unit restarts.
2
When controller detects short/open in
thermistor at just before of restarting, the
unit stops abnormally. In this time, <5101>
is displayed.
While the compressor is protected not to
3
restart in 3minutes, the unit is delayed
abnormal stop. Then, the outdoor unit
address No. and check delay code
<1202> blinks alternately on the 4 digit
digital display.
SW1 setting
For 10 minutes after starting compressor,
4
21345678
on
for defrosting or for 3minutes after recover
of defrosting, above-mentioned short/open
are not detected.
Short: 216;or more (1k')
Open: 0; or less (700k')
Note) When outer temperature thermistor
(TH6) is 5; or less on cooling, open
detecting is not determined as
abnormality.
2) Decrease of power supply voltage
3)
Looseness, disconnection or converse
of compressor wiring connection
4) Defective fan of indoor/outdoor units
5) Short cycle of indoor/outdoor units
6) Defective input circuit of outdoor
2
Check facility of power supply.
3
Correct the wiring (U•V•W phase) to
compressor.
Check indoor/outdoor fan.
4
Solve short cycle.
5
6
Replace outdoor controller board.
controller board
7) Defective compressor
1) Connector (CN20) contact failure Check whether the connector
7
Check compressor.
1
(CN20) in the indoor controller board
is connected or not.
2) Thermistor wiring disconnection or
half disconnection
3) Thermistor failure Check the resistance of thermistor;
4) Detecting circuit failure in the
indoor controller board
When there is no problem in above
4
mentioned 123,replace the indoor
controller board.
1) Connector (TH1) contact failure Check whether the connector (TH1)
1
in the multi controller board is
connected or not.
2) Thermistor wiring disconnection or
half disconnection
3) Thermistor failure Check the resistance of thermistor;
2
Check whether the thermistor wiring
is disconnected or not.
3
When the resistance is not below
value, replace the thermistor.
0;··· about 700k'
10;··· about 410k'
20;··· about 250k'
30;··· about 160k'
4) Multi controller board input circuit
failure
40;··· about 104k'
Set the SW1 to
4
When the temperature in multi
21345678
on
controller board is not an actual
temperature, replace the multi
controller board.
-99.9: Open
999.9: Short
70
Display
5102
Meaning and detecting method
Liquid pipe temperature thermistor (TH22)
abnormality
When the thermistor detects short/open
during the operation, the operation stops
and the operation changes to protect mode
of restarting in 3minutes. If the thermistor
does not recover in 3minutes, the
operation stops abnormally. In this time,
<5102> is displayed. Then, if the
thermistor recover in 3minutes, it operates
normally.
Short: Detected 90; or more
Open: Detected -40; or less
Causes
1) Connector (CN21) contact failure Check whether the connector
1
Check points
(CN21) in the indoor controller board
is connected or not.
2) Thermistor wiring disconnection or
half disconnection
3) Thermistor failure
2
Check whether the thermistor wiring
is disconnected or not.
Low pressure saturation temperature
thermistor (TH2) abnormality
1
When controller detects short/open in
thermistor during the operation, the outdoor
unit stops once and restarts operation in
3minutes. When the detected temperature
is normal just before restarting, the outdoor
unit restarts.
2
When controller detects short/open in
thermistor at just before of restarting, the
unit stops abnormally. In this time, <5102>
is displayed.
While the compressor is protected not to
3
restart in 3minutes, the unit is delayed
abnormal stop. Then, the outdoor unit
address No. and check delay code <1211>
blinks alternately on the 4 digit digital
display.
SW1 setting
For 10 minutes after starting compressor,
4
21345678
on
for defrosting or for 3minutes after recover
of defrosting, above-mentioned short/open
are not detected.
Short: 100; or more (0.5k')
Open: -46; or less (200k')
4) Detecting circuit failure in the
indoor controller board
When there is no problem in above
4
mentioned 123,replace the indoor
controller board.
1) Connector (TH2) contact failure Check whether the connector (TH2)
1
in the multi controller board is
connected or not.
2) Thermistor wiring disconnection or
half disconnection
3) Thermistor failure Check the resistance of thermistor;
2
Check whether the thermistor wiring
is disconnected or not.
3
0;···15k'
10;···9.6k'
20;···6.3k'
30;···4.3k'
40;···3.0k'
21345678
4) Multi controller board input circuit
4
Set the SW1 to
on
failure
When the temperature in multi
controller board is not an actual
temperature, replace the multi
controller board.
-99.9: Open
999.9: Short
71
Display
Meaning and detecting method
5103Gas pipe temperature thermistor (TH23)
abnormality
When the thermistor detects short/open
after 3minutes-continuous thermostat ON
during cooling or dry operation, the
operation stops and the operation
changes to protect mode of restarting in
3minutes. If the thermistor does not
recover in 3minutes, the the operation
stops abnormally. In this time, <5103> is
displayed. Then, if the thermistor recover
in 3minutes, it operates normally.
Short: Detected 90; or more
Open: Detected -40; or less
Causes
1) Connector (CN29) contact failure Check whether the connector (CN29)
1
Check points
in the indoor controller board is
connected or not.
2) Thermistor wiring disconnection or
half disconnection
3) Thermistor failure Check the resistance of thermistor;
2
Check whether the thermistor wiring
is disconnected or not.
3
0;···15k'
10;···9.6k'
20;···6.3k'
30;···4.3k'
40;···3.0k'
5105
Paipe temperature / judging defrost
thermistor (TH5) abnormality
1
When controller detects short/open in
thermistor during the operation, the outdoor
unit stops once and restarts operation in
3minutes. When the detected temperature
is normal just before restarting, the outdoor
unit restarts.
2
When controller detects short/open in
thermistor at just before of restarting, the
unit stops abnormally. In this time, <5105>
is displayed.
While the compressor is protected not to
3
restart in 3minutes, the unit is delayed
abnormal stop. Then, the outdoor unit
address No. and check delay code <1205>
blinks alternately on the 4 digit digital
display.
SW1 setting
21345678
on
4) Detecting circuit failure in the indoor
controller board
4
When there is no problem in above
mentioned 123,replace the indoor
controller board.
1) Connector (TH5) contact failure Check whether the connector (TH5)
1
in the multi controller board is
connected or not.
2) Thermistor wiring disconnection or
half disconnection
3) Thermistor failure Check the resistance of thermistor;
2
Check whether the thermistor wiring
is disconnected or not.
3
When the resistance is not below
value, replace the thermistor.
0;···15k'
10;···9.6k'
20;···6.3k'
30;···4.3k'
40;···3.0k'
For 10 minutes after starting compressor,
4
for defrosting or for 3minutes after recover
of defrosting, above-mentioned short/open
are not detected.
Short: 88; or more (0.4k')
Open: -39; or less (115k')
4) Multi controller board input circuit
failure
72
21345678
4
Set the SW1 to
on
When the temperature in multi
controller board is not an actual
temperature, replace the multi
controller board.
-99.9: Open
999.9: Short
Display
5106
Meaning and detecting method
Outdoor temperature detection thermistor
(TH6) abnormality
1
When controller detects short/open in
thermistor during the operation, the
outdoor unit stops once and restarts
operation in 3minutes. When the detected
temperature is normal just before
restarting, the outdoor unit restarts.
2
When controller detects short/open in
thermistor just before restarting, the unit
stops abnormally. In this time, <5106> is
displayed.
While the compressor is protected not to
3
restart in 3minutes, the unit is delayed
abnormal stop. Then, the outdoor unit
address No. and check delay code <1221>
blinks alternately on the 4 digit digital
display.
SW1 setting
4
For 10 minutes after starting compressor,
for defrosting or for 3minutes after recover
of defrosting, above-mentioned short/open
are not detected.
Short: 88; or more (0.4k')
Open: -39; or less (115k')
21345678
on
Causes
1) Connector (TH6) contact failure Check whether the connector (TH6)
2) Thermistor wiring disconnection or
half disconnection
3) Thermistor failure Check the resistance of thermistor;
4) Multi controller board input circuit
failure
1
in the multi controller board is
connected or not.
Check whether the thermistor wiring
2
is disconnected or not.
3
When the resistance is not below
value, replace the thermistor.
IPM radiator panel temperature thermistor
(THHS) abnormality
When controller detects short/open in
1
thermistor during the operation, the
outdoor unit stops once and restarts
operation in 3minutes. When the detected
temperature is normal just before
restarting, the outdoor unit restarts.
2
When controller detects short/open in
thermistor just before restarting, the unit
stops abnormally. In this time, <5110> is
displayed.
3
While the compressor is protected not to
restart in 3minutes, the unit is delayed
abnormal stop. Then, the outdoor unit
address No. and check delay code <1214>
blinks alternately on the 4 digit digital
display.
SW1 setting
4
For 10 minutes after starting compressor,
for defrosting or for 3minutes after recover
of defrosting, above-mentioned short/open
are not detected.
PUMY-71VM PUMY-125VM PUMY-125YM
PUMY-71VM1 PUMY-125VM1 PUMY-125YM1
( )
PUMY-71VM2 PUMY-125VM2 PUMY-125YMA
PUMY-125VMA PUMY-125VMA1:
Short:102; or more (2.9k')
Open: -27; or less (950k')
1 PUMY-125VM1 PUMY-125YM1
21345678
on
1:
:
1) Connector (THHS(A/B)) contact
failure
2) Thermistor wiring disconnection or
half disconnection
3) Thermistor failure Check the resistance of thermistor;
4) Multi controller board input circuit
failure
1
Check whether the connector
(THHS(A/B)) in the multi controller
board is connected or not.
Check whether the thermistor wiring
2
is disconnected or not.
3
When the resistance is not below
value, replace the thermistor.
Short:132; or more (1.2k')
Open: -30; or less (1200k')
:
73
Display
5201
Meaning and detecting method
Pressure sensor (63HS) abnormality
1
When detected pressure in high-pressure
pressure sensor is 1MPa or less during the
operation, the compressor stops and
restarts operation in 3minutes.
2
When the detected pressure is 1MPa or
less at just before of restarting, the
compressor stops abnormally. In this time,
<5201> is displayed.
For 3minutes after the compressor stops,
3
the unit delays to abnormal stop. Then, the
outdoor unit address No. and check delay
code <1402> blinks alternately on the
4digit digital display.
SW1 setting
For 3minutes after starting compressor,
4
for defrosting or for 3minutes after recover
21345678
on
of defrosting, abnormality is not
determined as abnormality.
Causes
1) High-pressure pressure sensor
failure
2) Internal pressure decrease by gas
leakage
3) Connector contact failure,
disconnection
4) Multi controller board input circuit
failure
Check points
1
Check the high-pressure pressure
sensor.
Check the internal pressure.
2
Check the high-pressure pressure
3
sensor.
Check the high-pressure pressure
4
sensor.
5300Current sensor error (PUMY-125VMA
PUMY-125VMA
Abnormal if current sensor detects –1.5A to
1
1)
1.5A during compressor operation.
(This error is ignored in case of SW6-3 ON.)
2
1. When input current sensor on N.F. circuit
board detects 34A or more, compressor
stops and restarts in 3 minutes.
2. When the sensor detects 34A or more
again (2nd detection) within 10 minutes,
since the compressor has stopped, the
compressor stops again and restarts
operation in 3 minutes.
3. When the sensor detects 34A or more
again (10th detection) within 10 minutes,
it stops abnormally. In this time <5300>
error is displayed.
4. It is being delay for abnormal stop during
10 minutes since the compressor has
stopped. In this time, check delay code
<5350> will be displayed.
6600Duplex address error
Detected error when transmission of unit
with the same address is confirmed,
Note) Address/Attribute displayed on the
remote controller shows the controller
detecting abnormality.
1) Disconnection of compressor wiring
2) Defective circuit of current sensor on
outdoor power board
3) Low voltage supplied to power
supply terminal block.
1) There are 2units or more with the
same address among the outdoor unit
or indoor unit or lossnay controller,
remote controller.
2) When noise has occurred in the
transmission signal, and the signal has
changed.
Correct the wiring (U•V•W phase) to
1
compressor.
2
Replace outdoor power board.
3
Check the facility of power supply.
Look for the unit, which is source of
1
abnormality with the same address.
When the same address is found,
correct the address and turn off power
supply of outdoor unit, indoor unit,
and lossnay for 2minutes or more as
the same time. Then, turn on power
supply.
Check the transmitted wave and the
2
noise on the transmission line.
6602Transmission processor H/W error
'' 1 '' shows on the transmission line though
the transmission processor transmitted '' 0''.
Note) Address/Attribute displayed on the
remote controller shows the controller
detecting abnormality.
1) When the wiring for either of the
indoor unit, the outdoor unit or
lossnay transmission line is
constructed or polarity is changed
with the power supply turned on, the
transmission waves change in case
that the transmission data collides
mutually. It causes to detect error.
2) Transmission processor circuit
failure
3) When the transmission data has
changed by the noise.
74
When the transmission line is
1
constructed with the current flowed,
turn off power supply of outdoor unit,
indoor unit and lossnay for 2minutes
or more as the same time. Then, turn
on power supply.
Check the transmitted wave and the
2
noise on the transmission line.
Display
6603Transmission bus busy error
1
Meaning and detecting method
Over error by collision1) The transmission processor cannot
Abnormality when the state, which cannot
be transmitted by collision of transmission,
is consecutive for 8 to 10minutes.
Causes
be transmitted since a short cycle
voltage of the noise etc. mixes on the
transmission line consecutively.
Check points
1
Check whether the transmission line
of the indoor unit, fresh master,
lossnay and remote controller is
connected to the outdoor unit terminal
board (TB7) for centralized controller
or not.
6606
2
The state that data cannot to be output to
the transmission line by the noise
happens for 8 to 10minutes consecutively.
Note) Address/Attribute displayed on the
remote controller shows the controller
detecting abnormality.
Signal communication error with
transmission processor
Signal communication error between unit
processor and transmission processor
Note) Address/Attribute displayed on the
remote controller shows the controller
detecting abnormality.
2) The transmission volume increases
and cannot be transmitted since the
wiring method is mistaken and the
routing technique to the terminal
board (TB3) for the transmission line
of the outdoor unit and the terminal
board (TB7) for centralized control
cannot be transmitted.
3) The share becomes high since the
data exists together to other
transmitted data by a defective
repeater (function which connects and
intercepts the transmission of
controlling system and centralized
control system), and it causes
abnormal detection.
1) It happened since the noise and
lightening serge that happened by
chance had not normally transmitted
the data of the unit/transmission
processor.
2
Check whether the transmission line
with the other refrigerant system of the
indoor unit and lossnay is connected to
the outdoor unit terminal board (TB3)
for transmission or not.
3
Check whether the outdoor unit
terminal board for transmission line
(TB3) and for centralized controller
(TB7) are connected or not.
4
Check the transmitted wave and the
noise on the transmission line.
Turn off power supply of outdoor unit,
indoor unit, and lossnay for 2minutes
or more at the same time. Then, turn
on power supply. It recovers normally
at the malfunction that happens by
chance. When same abnormality
occurs again, it is defective of a
generation former controller.
2) The address transmission from the
unit processor was not normally
transmitted by the hardware of
transmission processor defective.
75
Display
6607
Meaning and detecting method
No ACK (Acknowledgement)
Abnormality which controller of the
1
sending side detects when there is no
answer (ACK) from other side though data
was transmitted once. It is detected 6
times every 30seconds continuously.
The address and attribute of remote
controller which does not send back
acknowledement are indicated on the
remote controller.
Causes
Factor that not related to origin
1) Since the address switch was
changed with the current passed, the
unit in the last address does not exist.
2) Decline of transmission voltage and
signal by transmission line tolerance
over
· The furthest point···200m
· Remote controller line···(12m) (See
page 50 -57for details)
3) Decline of transmission line voltage
and signal by unmatched kind of line.
Kind···Shield line-CVVS,CPEVS
No shield···VCTF, VCTFK,
CVV, CVS, VVR, VVF, VCT
Line diameter···1.25 e or more
4) Decline of transmission line voltage
and signal by a number of overconnected units.
5) Miss operation of origin controller,
which happens by chance.
6) Origin controller defective
Check points
1
Turn off power supply of outdoor unit,
indoor unit fresh master and lossnay
for 2minutes or more at the same
time. Then, turn on power supply. It
recovers normally at the malfunction
that happens by chance.
Check the address switch in the
2
address, which occurs abnormality.
3
Check whether the transmission line
is connected / loosen or not at origin.
(Terminal board or connector)
Check whether the transmission line
4
tolerance is over or not.
Check whether the kind of
5
transmission line is mistaken or not.
When there is any trouble from above
1-5, turn off power supply of outdoor
unit, indoor unit and lossnay for
2minutes or more at the same time.
Then, turn on power supply.
1) When the cause of displayed address
and attribute is on the outdoor unit side
(The indoor unit detects when there is no
reply (ACK) on transmitting from the
indoor unit to the outdoor unit.)
2) When the cause of displayed address
and attribute is on the indoor unit side
(The remote controller detects when
there is no reply (ACK) on transmitting
from the remote controller to the indoor
unit.)
1) Contact failure of outdoor unit or
indoor unit transmission line
2) Indoor unit transmission connector
(CN2M) disconnection
3) Sending/receiving signal circuit
failure in the indoor/outdoor unit
1) When operating with multi
refrigerant system indoor units, the
remote controller transmits the signal
to the indoor unit after the other
refrigerant system outdoor unit is
turned off or turned on again in
2minutes, and detects abnormality.
2) Contact failure of remote controller
or indoor unit transmission line.
3) Indoor unit transmission connector
(CN2M) disconnection.
4) Sending/receiving signal circuit
failure in the indoor unit or remote
controller.
When there is not any trouble in
single refrigerant system (1outdoor
unit) from above1-5, controller
defective in displayed address and
attribute.
When there is not any trouble in
different refrigerant system (2outdoor
unit or more) from above1-5,
determine it after 6.
When the address, which should not
6
exist, is an origin, since there is the
indoor unit which memorizes the
address data, cancel the unnecessary
address data by the manual setting
function of remote controller.
However, they are limited to the
system, which sets the group between
different refrigerant systems, or which
fresh master /lossnay are connected.
When there is not any trouble from
above 1-6, replace the displayed
address/attribute controller board.
In this time, when the error does not
recover to normal, the outdoor unit
multi controller board (repeater circuit)
defective is expected.
Check the recovery by replacing the
multi controller board one by one.
76
To be continued on the next page.
From the preceding page.
Display
Meaning and detecting method
Causes
Check points
6607
3) When the cause of displayed address
and attribute is on the remote controller
side
(The indoor unit detects when there is no
reply (ACK) on transmitting from the indoor
unit to the remote controller unit.)
4) When the cause of displayed address
and attribute is on the fresh master side
(The indoor unit detects when there is no
reply (ACK) on transmitting from the indoor
unit to the fresh master.)
1) When operating with multi refrigerant
system indoor units, the indoor units
transmits the signal to the remote
controller after the other refrigerant
system outdoor unit is turned off or
turned on again in 2minutes, and
detects abnormality.
2) Contact failure of remote controller
or indoor unit transmission line
3) Indoor unit transmission connector
(CN2M) disconnection.
4) Sending/receiving signal circuit
failure in the indoor unit or remote
controller.
1) When synchronized operating with
other refrigerant system fresh master,
the indoor units transmits the signal to
the fresh master after the fresh master
and same refrigerant system outdoor
unit is turned off or turned on again in
2minutes, and detects abnormality.
5) When the cause of displayed address
and attribute is on the lossnay side
(The indoor unit detects when there is no
reply (ACK) on transmitting from the indoor
unit to the lossnay.)
2) Contact failure of fresh master or
indoor unit transmission line
3) Indoor unit or fresh master
transmission connector (CN2M)
disconnection.
4) Sending/receiving signal circuit
failure in the indoor unit or fresh
master.
1) When the lossnay power supply is
Off, the indoor unit detects abnormality
at signal transmitting to the lossnay.
77
Display
6607
Meaning and detecting method
Causes
2) When synchronized operating with
other refrigerant system lossnay, the
indoor units transmits the signal to the
lossnay after the lossnay and same
refrigerant system outdoor unit is
turned off or turned on again in
2minutes, and detects abnormality
3) Contact failure of lossnay or indoor
unit transmission line
4) Indoor unit transmission connector
(CN2M) disconnection.
5) Sending/receiving signal circuit
failure in the indoor unit or lossnay.
Check points
6608
6) When the controller of displayed
address and attribute is not recognized
No response
Though there was a replay (ACK) of
having received signal from the other
side, it is the abnormality when the
response command does not return.
The sending side detects the
abnormality continuously six times every
30 seconds.
Note) Address/Attribute displayed on the
remote controller shows the controller,
which did not response.
1) Since the address switch was
changed with the current passed, the
unit in the last address does not exist.
2) Since the fresh master/lossnay
address are changed after
synchronized setting of fresh master /
lossnay by the remote controller,
abnormality is detected at transmitting
from the indoor unit.
1) Transmission repeats the failure by
the noise etc.
2) Decline of transmission voltage and
signal by transmission line tolerance
over.
· The furthest point···200m
· Remote controller line···(12m)
(See page 50-57 for details)
Check the transmission wave and
1
noise on the transmission line.
Turn off power supply of outdoor unit,
2
indoor unit and lossnay for 2minutes or
more at the same time. Then, turn on
power supply again. It recovers
normally at the malfunction that
happens by chance. When same
abnormality occurs again, it is defective
of displayed address and attribute.
3) Decline of transmission line voltage
and signal by unmatched kind of line.
Kind···Shield wire-CVVS,CPEVS
No shield ···VCTF, VCTFK,
CVV, CVS, VVR, VVF, VCT
wire diameter···1.25eor more
4) Miss operation of origin controller,
which happens by chance.
78
Display
Meaning and detecting method
Causes
Check points
6810UR communication abnormality (UR: Unit
Remote controller)
Communications between the unit remote
controller and indoor unit is not normal.
When there is no display of address and
attribute to the remote controller. (When
detecting by the unit remote controller)
1) It is abnormality though the unit remote
controller transmitted ''H'', when "L"
reception is detected continuously three
times.
2) It is abnormality when there is no
response from the indoor unit for 3
minutes against to ''monitor request'' from
the unit remote controller.
3) It is abnormality when there is no
response 3times continuously from the
indoor unit against to ''operation /setting''
from the unit remote controller.
When the cause of displayed address and
attribute is on the indoor unit side.
1) It is abnormality though the indoor unit
transmitted ''H'', when "L" reception is
detected continuously three times.
2) It is abnormality when the indoor units
cannot receive the transmission signal
from the unit remote controller for
3minutes.
1) Contact failure of the unit remote
controller transmission line in the unit
remote controller or indoor unit.
2) Decline of transmission voltage and
signal on the unit remote controller
transmission line by the unit remote
controller transmission line tolerance
over
3) When the transmission signal of unit
remote controller changes by noise.
4) Unit remote controller transmitting /
receiving signal circuit failure in the unit
remote controller or indoor unit.
1
Check whether the transmission line
of the indoor unit or unit remote
controller is connected / loosen or
not.
Check whether the unit remote
2
controller transmission line tolerance
is over or not.
Check the transmission wave and
3
noise on the transmission signal of
unit remote controller.
When there is not any trouble from
4
1-3, replace the indoor
above
controller board or unit remote
controller.
Check of following conditions is
available by LED1/LED2 in the indoor
controller board.
· When LED1 and 2 blinks at the
same time.
The indoor unit is transmitting to the
unit remote controller.
· When only LED2 blinks.
The unit remote controller is
transmitting to the indoor unit.
Or, other indoor unit is transmitting to
the unit remote controller.
·When LED1 and 2 does not blink.
The indoor unit and unit remote
controller is not transmitting.
6831
6834
6832
6833
Signal reception abnormality (Remote
controller)
Following symptoms are regarded as
abnormality.
1) When the remote controller cannot
receive the signal from indoor controller
normally even once for 3 minutes
2) When sub-remote controller cannot
receive the signal even once for 2 minutes
Signal transmission abnormality (Remote
controller)
Following symptoms are regarded as
abnormality.
1) When sub-remote controller cannot
transmit the signal to the transmission
path for 6 seconds
2) When the remote controller cannot
finish transmitting the signal for 30 times
on end
Defect of the transmission and reception
1
circuit of the remote controller.
Defect of the transmission and
2
reception circuit of the indoor controller
board
Noise occurs on the transmission line
3
of the remote controller
All remote controllers are set as
4
sub-remote controller.
Defect of the transmission and
1
reception circuit of the remote controller
Noise occurs on the transmission line
2
of the remote controller
There are two main remote controllers.
3
1~3
Perform a check of the remote
controller.
According to the results, perform the
following disposals.
• When "RC OK" is displayed
The remote controller is normal.
Turn off the power supply and turn it
on again.
If "HO" is displayed for 4 minutes or
more, replace the indoor controller
board.
• When "RC NG" is displayed
Replace the remote controller.
• When "RC 6832 or 6833" or "ERC
00-66" is displayed
These displays may be due to noise,
etc.
4 Set one remote controller to main
remote controller and the other to
sub-remote controller.
79
Display
7100
Meaning and detecting method
When connected total models of the
indoor units exceed the specified level
(130% of the outdoor unit models), error
code <7100> is displayed.
Causes
1) Connecting total models of the
indoor unit exceed the specified level.
125: Possible up to 163 (code 33)
Check points
1
Check the total models of connected
indoor unit.
Check the model code registration
2
switch (indoor controller board SW2)
of connected indoor unit.
7101Capacity code error
When the connected indoor unit models
cannot be connected, <7101> is displayed.
2) There is a mistake in the registration
of model name code of the outdoor
unit.
The indoor unit models is not possible
to connect,
The indoor unit of 20-125(code 4-25)
is possible to connect.
Check the model code registration
switch (outdoor multi controller board
SW4) of the outdoor unit.
Check the model code registration
1
switch (indoor controller board SW2)
in the connected indoor unit.
The outdoor unit SW1 operation can
2
check model code of the connected
indoor units.
Code of indoor unit No.1
Code of indoor unit No.2
Code of indoor unit No.3
Code of indoor unit No.4
Code of indoor unit No.5
Code of indoor unit No.6
21345678
on
21345678
on
21345678
on
21345678
on
21345678
on
21345678
on
7102Number of connecting unit over
When the connecting unit exceeds a
number of limitations, error code <7102> is
displayed.
Even if the indoor unit is not connected,
becomes <7102> is display.
7105Address setting error
Address setting of the outdoor unit is
wrong.
Connecting unit exceeds a number of
limitations. It is assumed abnormality
excluding the following cases;
1) The indoor unit can be totally
connected up to 8 units.
The indoor unit can be
connected up to 8 units
2) Ventilation unit connecting is only
1unit.
Addresses miss setting of the outdoor
unit.
The outdoor unit is not set in 000 or in
the range of 51-100.
Code of indoor unit No.7
Code of indoor unit No.8
21345678
on
21345678
on
Check whether the connecting unit
exceeds a number of limitations or
not.
Check the address setting of the
outdoor unit. The address should be
set in 000 or 51-100.
When the setting is out of the range,
reset it, turn off power supply of the
outdoor unit, indoor unit and lossnay
for 2minutes or more at the same
time, and turn on power supply again.
80
Display
7111When an old type remote controller for
Meaning and detecting method
Remote controller sensor abnormality
In the case of network remote controller, it
is an abnormality when incapable
response returns from the net work remote
controller during the operation.
Causes
M-NET is used, and the remote
controller sensor is specified (SW1-1
is ON).
Check points
Replace the remote controller to net
work remote controller.
0403Serial communication error
Abnormal if serial communication between
outdoor multi board and outdoor power
board is defective.
1 Breaking of wire or contact failure of
connector CN2
2 Breaking of wire or contact failure of
connector CN4
3 Defective communication circuit of
outdoor power board
4 Defective communication circuit of
outdoor multi board for power board
12 Check connection of each
connector CN2, CN4.
3 Replace outdoor power board.
4 Replace outdoor multi board.
8-2. REMOTE CONTROLLER DIAGNOSIS
• MA remote controller is equipped with the diagnosis function.
Check the remote controller with this function when the unit does not operate with the remote controller.
(1)
Electric current marker
(2)
(1) First, check the electricity current maker.
If the correct voltage (DC 8.7~13V) is not supplied on the
remote controller, the electric current marker will be lit.
If the electricity current marker is not lit, check the remote
controller wiring and the indoor units.
(2) Transfer to remote control diagnosis mode.
Hold down the CHECK button for five seconds or more to
display the diagram on the left.
(3)
Press the FILTER button to commence diagnosis of remote
controller.
(3) Remote controller diagnosis results.
a)
a) The remote control is functioning correctly.
Check other possible causes as there are on problems
with the remote controller.
b) The remote controller has a nonconformity.
The remote controller must be replaced.
Error display 1 (“NG”) flashes to show a nonconformity
b)
in the transmitter-receiver circuit.
To be continued on the next page.
81
PAR-20MAA
ON/OFF
CENTRALLY CONTROLLED
ERROR CODE
CLOCK
ON OFF
˚C
CHECK
CHECK MODE
FILTER
TEST RUN
FUNCTION
˚C
1Hr.
NOT AVAILABLE
STAND BY
DEFROST
FILTER
CHECK TEST
TEMP.
TIMER SET
“” indicator: Appears when current is carried.
Symptom or inspection codeCauseInspection method and solution
Though the content of operation is
displayed on the remote
controller, some indoor units do
not operate.
• The power supply of the indoor unit is not on.
•
The address of the indoor units in same group or the remote controller
is not set correctly.
•
The group setting between outdoor units is not registered to the remote
controller.
• The fuse on the indoor unit controller board is blown.
• Check the part where the
abnormality occurs.
1 The entire system
2 In the entire refrigerant system
3 In same group only
4 One indoor unit only
<In case of the entire system or in
the entire refrigerant system>
•
Check the self-diagnosis LED
of the outdoor unit.
• Check the items shown in the
left that are related to the
outdoor unit.
<In case of in same group only or
one indoor unit only>
• Check the items shown in the
left that are related to the
indoor unit.
Though the indoor unit operates,
the display of the remote controller
goes out soon.
• The power supply of the indoor unit is not on.
• The fuse on the indoor unit controller board is blown.
( ) is not displayed on the remote
controller.
(M-NET remote controller
is not fed.)
• The power supply of the outdoor unit is not on.
•
The number of connected indoor unit in the refrigeration system is over
the limit or the number of connected remote controller is over the limit.
•
M-NET remote controller is connected to MA remote controller cable.
• The transmission line of the indoor/outdoor unit is shorted or down.
• M-NET remote controller cable is shorted or down.
"HO" keeps being displayed or it
is displayed periodically. ("HO" is
usually displayed for 3 minutes at
the longest after the power supply
of the outdoor unit is on.)
• The power supply for the feeding expansion unit for the transmission
line is not on.
• The address of the outdoor unit remains "00".
•
The address of the indoor unit or the remote controller is not set correctly.
• MA remote controller is connected to the transmission line of the
indoor/outdoor unit.
The remote controller does not
operate though ( ) is displayed.
• The transmission line of the indoor/outdoor unit is connected to TB15.
• The transmission line of the indoor/outdoor unit is shorted, down or
badly contacted.
From the preceding page.
a)
Potential problems other than those diagnosed for the
remote controller.
a) Single transmission is not possible if error display 2 (“6832
or 6833”) flashes. There is “noise” on the transmission
line, or damage of other remote controller for the indoor
units can be considered. Check the transmission path
and other controller
b)
• When the number of data errors generated is 02.
Remote controller transmission data
Transmission data at transmission path
8-3. REMOTE CONTROLLER TROUBLE
b) Data error has occurred when error display three shows
“ERC” and number of data errors.
Number of generated data error (maximum 66 errors).
The number of generated data error stands for the
difference in the number of bits of transmitted data from
the remote controller and the actual number of bits that
were transmitted along the transmission path. If this
error occurs, “noise”, etc., is interfering with the transmission
data. Check the transmission path.
(4) Cancel the remote controller diagnosis.
Hold down the CHECK button for five seconds or more to
cancel the remote controller diagnosis. The “HO” operation
lamp will flash, and the display screen will rectum to the
status before remote controller diagnosis in approximately
30 seconds.
(1) For M-NET remote controller systems
82
Symptom
Even the cooling (heating)
operation selection button
is pressed, the indoor unit
cannot be operated.
The auto vane runs freely.
Fan setting changes during
heating.
Fan stops during heating
operation.
Fan does not stop while
operation has been stopped.
No setting of fan while start
SW has been turned on.
Indoor unit remote controller
shows “HO” indicator for
about two minutes when turning ON power supply.
Drain pump does not stop
while unit has been stopped.
Drain pump continues to
operate while unit has been
stopped.
Display of remote controller
"Cooling (Heating)" blinks
Normal display
Normal display
"Defrost "
Light out
STAND BY
“HO” blinks
Light out
—
CAUSE
The indoor unit can not cool (heat) if other indoor units are heating
(cooling).
Because of the control operation of auto vane, it may change over
to horizontal blow automatically from the downward blow in cooling
in cause the downward blow operation has been continued for one
hour. At defrosting in heating, hot adjusting and thermostat OFF, it
automatically changes over to horizontal blow.
Ultra-low speed operation is commenced at thermostant OFF.
Light air automatically change over to set value by time or piping
temperature at thermostat ON.
The fan is to stop during defrosting.
Fan is to run for one minute after stopping to exhaust residual heat
(only in heating).
Utra-low speed operation for 5 minutes after SW ON or until piping
temperature becomes 35°C. There low speed operate for 2 minutes, and then set notch is commenced. (Hot adjust control)
System is being driven.
Operate remote controller again after “HO” disappears.
After a stop of cooling operation, unit continues to operate drain
pump for three minutes and then stops it.
Unit continues to operate drain pump if drainage is generated, even
during a stop.
(2) For MA remote controller systems
Symptom or inspection codeCauseInspection method and solution
Though the content of operation is
displayed on the remote controller,
some indoor units do not operate.
Though the indoor unit operates,
the display of the remote
controller goes out soon.
( ) is not displayed on the remote
controller. (MA remote controller is
not fed.)
"HO" keeps being displayed or it is
displayed periodically. ("HO" is
usually displayed for 3 minutes at
the longest after the power supply
of the outdoor unit is on.)
The
remote controller does not
operate though ( ) is displayed.
• The power supply of the indoor unit is not on.
• Wiring between indoor units in same group is not finished.
• The indoor unit and Slim model are connected to same group.
• The fuse on the indoor unit controller board is blown.
• The power supply of the indoor unit (Master) is not on.
• In case of connecting the system controller, the setting of the system
controller does not correspond to that of MA remote controller.
• The fuse on the indoor unit (Master) controller board is blown.
The remote controller is not fed until the power supply of both indoor unit
and outdoor unit is on and the start-up of both units is finished normally.
• The power supply of the indoor unit is not on.
• The power supply of the outdoor unit is not on.
• The number of connected remote controller is over the limit
(Maximum: 2 units) or the number of connected indoor unit that is
over the limit (Maximum: 16 units).
•
The address of the indoor unit is "00" and the address for the outdoor
unit is the one other than "00".
•
The transmission line of the indoor/outdoor unit is connected to TB15.
• MA remote controller is connected to the transmission line of the
indoor/outdoor unit .
• The remote controller cable is shorted or down.
• The power supply cable or the transmission line is shorted or down.
• The fuse on the indoor unit controller board is blown.
• The power supply of the outdoor unit is not on.
• The power supply of the feeding expansion unit for the transmission
line is not on.
• The setting of MA remote controller is not main remote controller, but
sub-remote controller.
• MA remote controller is connected to the transmission line of the
indoor/outdoor unit
• The power supply of the indoor unit (Master) is not on.
• The transmission line of the indoor/outdoor unit is connected to TB15.
• The transmission line of the indoor/outdoor unit is shorted, down or
badly contacted.
•The fuse on the indoor unit controller board is blown.
.
• Check the part where the
abnormality occurs.
1 The entire system
2 In the entire refrigerant system
3 In same group only
4 One indoor unit only
<In case of the entire system or in
the entire refrigerant system>
Check the self-diagnosis LED
•
of the outdoor unit.
• Check the items shown in the
left that are related to the
outdoor unit.
<In case of in same group only or
one indoor unit only>
• Check the items shown in the
left that are related to the
indoor unit.
8-4. THE FOLLOWING SYMPTOMS DO NOT REPRESENT TROUBLE (EMERGENCY)
83
Outdoor unit
Switch
SW U1
1st digit
SW U2
2nd digit
SW U3
3rd digit
SW1 Digital
Display
Switching
SW2
function
Switching
SW5
function
switching
SW3 Trial
operation
SW4
Model
Switching
Step
Operation in Each Switch Setting
ONOFFWhen to Set
Remarks
The black square ( ) indicates a switch position.
Before turing
the power on
Before the power
is turned on.
Can be set when
off or during
operation
SWU3
(3rd digit)
Rotary switch
1
2
3
4
5
6
7
8
9
10
1
2
1
2
3
4
5
6
7
8
Function
1~8
1~4
Can be set
either during
operation or not.
Before turning the
power on
While unit stopping.
Any time after the
power is turned on.
OFF to ON any time after
the power is turned on.
Active
Active
Active
Enable
Inactive
Inactive
Active
Active
Pdm switching
ETm switching
Inactive
Inactive
Normal
Normal
Run
Fix
Fix
Stop
Disable
Inactive
Start upDoesn’t start up
Clear
Do not clear
Normal
Normal
Normal
FixNormal
EnableDisable
Normal
Continuous
30 min.
(ordinary)
Clear abnormal data
Selects operating system startup
Connection Information Clear Switch
Abnormal data clear switch input
Linear expansion valve opening
setting of suspending indoor unit in
the heat mode.
Linear expansion valve opening
setting of FAN. COOL¥HEAT thermo
OFF indoor unit in the heat mode.
Forced defrost
Cumulative
60 min.
Forced defrost
Defrost detection switching
Defrost disabled time selection
Linear expansion valve opening
setting of thermo OFF unit in the heat
mode.
Enable/disable operation from outdoor
unit
Run/stop from the outdoor unit.
<Factory Settings>
<Factory Settings>
<Factory Settings>
<Factory Settings>
<Factory Settings>
<Factory Settings>
Set for each capacity.
Fix the operation frequency
Fixing the indoor units linear expansion
valve opening
Fixing the outdoor unit electronic
expansion valve opening.
Enable fixing at the desired frequency
Maintain outdoor fan at fixed speed
and ignore outdoor temperature
sensor abnormality
Ignore refrigerant filling abnormality
Switching the target discharge pressure (Pdm)
Switching the target evaporation temperature (ETm)
0
1
2
3
4
5
6
7
8
9
SWU2
(2nd digit)
0
1
2
3
4
5
6
7
8
9
SWU1
(1st digit)
0
1
2
3
4
5
6
7
8
9
SWU3
(3rd digit)
0
1
2
3
4
5
6
7
8
9
SWU2
(2nd digit)
0
1
2
3
4
5
6
7
8
9
SWU1
(1st digit)
0
1
2
3
4
5
6
7
8
9
1
ON
OFF
2345678
1
ON
OFF
2345678
1
ON
OFF
2345678
1
ON
OFF
2345678
910
1
ON
OFF
2
OFF ➔ ON, during
compressor running
in heating mode.
OFF ➔ ON while
compressor is not
operating
While unit stopping.
While unit stopping.
Service ref.
SW4
1
ON
OFF
234
Service ref.
SW4
PUMY-71VM
PUMY-71VM1
PUMY-125VM
PUMY-125VM1
PUMY-125YM
PUMY-125VM2
PUMY-125YM1
PUMY-125YMA
PUMY-71VM2
1
ON
OFF
234
1
ON
OFF
2341
ON
OFF
234
8-5. INTERNAL SWITCH FUNCTION TABLE
8-5-1. Outdoor unit internal switch function table
(PUMY-71VM/VM
1/VM2, PUMY-125VM/VM1/VM2, PUMY-125YM/YM1/YMA)
84
8-5-2. Outdoor unit internal switch function table
(PUMY-125VMA, PUMY-125VMA
Switch
SW U1
1st digit
SW U2
2nd digit
SW1 Digital
Display
Switching
Step
Rotary switch
1~8
0
1
9
2
8
3
7
4
6
5
SWU2
(2nd digit)
Function
(1st digit)
ON
OFF
1)
0
1
9
2
8
3
7
4
6
5
SWU1
1
2345678
Operation in Each Switch Setting
ONOFFWhen to Set
W The address automatically becomes
"100" if it is set as "01~50"
The black square ( ) indicates a switch position.
Remarks
<Factory Settings>
Before turning
the power on
Can be set
either during
operation or not.
0
9
8
7
6
5
SWU2
(2nd digit)
<Factory Settings>
ON
OFF
1
0
1
2
4
3
1
9
2
8
3
7
4
6
5
SWU1
(1st digit)
2345678
SW2
function
Switching
Outdoor unit
SW3 Trial
operation
SW4
Model
Switching
Selects operating system startup
1
Connection Information Clear Switch
2
Abnormal data clear switch input
3
4
During the FAN or COOL mode, and thermo - OFF
5
or OFF in heating operation, set the opening
of linear expansion valve on indoor unit.
6
During the FAN or COOL mode, and thermo - OFF
in heating operation, set the opening of
linear expansion valve on indoor unit.
7
Forced defrost
8
Defrost detection switching
9
Defrost disabled time selection
10
Vacuum operation protection (error
code 1505) is not detected.
Enable/disable operation from outdoor
1
unit
ON/OFF from the outdoor unit.
2
1~4
Service ref.
PUMY-125VMA
PUMY-125VMA
SW4
ON
OFF
1
1
Clear
Clear abnormal data
Active
Active
Forced defrost
Cumulative
60 min.
Active
Enable
ON
234
Start upDoesn’t start up
Do not clear
Normal
Inactive
Inactive
Normal
Continuous
30 min.
(ordinary)
Inactive
Disable
OFF
Before turning the
<Factory Settings>
power on
OFF to ON any time after
the power is turned on.
OFF
While unit stopping.
OFF ➔ ON, during
compressor running
in heating mode.
While unit stopping.
Any time after the
<Factory Settings>
power is turned on.
<Factory Settings>
Set for each capacity.
Before the power
is turned on.
ON
1
2345678910
ON
OFF
1
2
SW5
function
switching
SW6
function
switching
1
Auto Change Over from Remote Controller
2
Fixing the indoor units linear expansion
valve opening
3
Fixing the outdoor unit electronic
expansion valve opening.
• SLEV w to stepping motor ON/OFF after outdoor controller board has received pulse signal.
• The valve position can be changed according to the pulse signal number ratio.
<connection between the SLEV w and the outdoor controller board>
Note: Because the numbers of the relay connector and the connector on the controller board side are different, wiring work
must rely on the colors of the wires.
89
Only PUMY-125VMA model
w LEV(A)
To be continued on the next page.
A
E
D
C
B
Closie
Closie
Open
Open
Completely sealed (200 pulses)
Number of pulses
Valve fully open
at 2,000 pulses
Valve position (volume)
ProblemCheck pointCorrective measure
Remove the connector from the controller board and connect diagnostic
LEDs.
When power is turned on, pulse signals will output for 10 seconds.
There must be some defects in the operation circuit if the LED does not light
while the signals are output or keeps lighting even after the signals stop.
If the linear expansion valve (indoor unit) or electronic expansion valve
(outdoor unit) becomes locked and the motor is still operating, the motor will
emit a clicking noise and will not function. This clicking noise indicates
an abnormality.
Use an all-purpose electrical meter to measure the resistance between the
different coils (white-red, yellow-brown, orange-red, blue-brown). Normal
resistance is within a range of 150' ±10%.
In order to check the linear expansion valve, operate one indoor unit in the
fan mode and another in the cooling mode. Then, use the outdoor multi
controller board to operate the monitor and check the pipe temperature of the
indoor unit (liquid pipe temperature). The linear expansion valve should be
fully closed when the fan is operating. The temperature measured by the
temperature sensor will drop if there is any leakage.
If the measured temperature is significantly lower
than that on the remote controller, this indicates that
the valve is not closed. It is not necessary to replace
the linear expansion valve if the leak of refrigerant
is small and does not cause a malfunction.
1 Check improperly connected connector terminals and the wire colors.
2 Remove the connector on the controller board side and check electrical
conductance
Malfunction in microprocessor operating
circuit
Locked expansion
valve
Short circuit or broken
circuit in expansion
valve motor coil
Valve does no close
completely
Incorrect connection
or connection failure
Replace the indoor unit
controller board or
Replace the outdoor
multi controller board.
Replace the linear
expansion valve or
electronic expansion
valve
Replace the linear
expansion valve or
electronic expansion
valve
Replace the linear
expansion valve if
there is a major leak
of refrigerant.
Continuity check of
wrong part.
6
5
4
3
2
1
1k" LED
Temperature
sensor
<liquid pipe>
Linear expansion valve
From the preceding page.
<Output pulse signal and valve action>
The address of the pulse output is shifted using the procedures
mentioned earlier.
w1. All output phase will turn OFF when the SLEV w2 stops
operating.
2. When the output phase is terminated or when the phase
shift is not according to frequency, the motor rotation will
become irregular, causing the motor to vibrate or lockup.
w When the power supply is on, the closing signal of 2,200
pulse will be transmitted to decide the position of the valve.
The valve position can be determined when point AAis
reached.
The LEV(SLEV w2) will not vibrate or make noise
when the valve is operating smoothly. However, when
the number of pulses change from EEto AA, or if the valve
lockup, there may be more noise than under normal
circumstances.
• The noise can be heard by resting your ear on the handle
of a screwdriver that is pressed against the top of the
LEV(SLEV w2) valve.
CN2
Connect to the outdoor power supply board (CN2)
1:Inner thermostat abnormality signal
2:IPM abnormality signal
3:Shortage voltage abnormality signal
4:Bus-bar voltage detected signal
5:Power supply synchronous signal
–
5V DC
4.75–5.25V
CN1
Connect to the outdoor power supply board (CN1)
1:52C relay output signal
2:4-way valve output signal
3:Bypass valve output signal
4:OPEN
5:OPEN
6:Fan drive signal
CN4
<Inverter sigunal>
Connect to the
outdoor power
supply board (CN1)
AC,CT
Detection of
current
SLEV
Expansion
valve
TH2
Thermistor
detection of
low pressure
saturated
temperature
TH6
Thermistor
detection of
outdoor
temperature
CNCT
Detection of
paimary
current
(Cnnect to
the NF1
(CNCT))
Only for
71VM model
+
+
12V DC
11.5–15.6V
–
+
30V DC
27.3–30V
–
CN3
Connect to the outdoor
power supply board (CN3)
control power supply
1-3:12V DC
2-3:5V DC
4:OPEN
5:OPEN
6-7:28V DC
CN41
For storing
jumper
connector
CN40
Centralized
control
power supply
CNS2
Connect to the
terminal block TB7
(For centralized control)
CN3D
Demand,
silent mode inpt
CNS1
Connect to the
terminal block TB3
(Indoor/outdoor unit
connecting wire)
THHS
Thermistor
detection of
IPM radiator
panel
temperature
CNR
Connect to the outdoor
power supply board (CNR)
CNA
220-240V AC
Connect to the noise filter (CNA)
94
8-8-5. Outdoor multi circuit board
PUMY-125VMA
PUMY-125VMA1
CNDC
300-380V DC
Connect to the outdoor
power circuit board (CNDC)
}
+
–
MF1, MF2
Connect to
fan motor
CN2
Signal wires
Connect to
the outdoor
power circuit
board (CN2)
52C
52C Relay
21S4
4-way valve
SV
Solenoid valve
CN51
Commpressor
drive signal
output
TH2
Thermistor
detection of
low pressure
saturated
temperature
TH5
Thermistor
detection of
pipe temperature
TH6
Thermistor
detection of
outdoor
temperature
TH1
Thermistor
detection of
discharge
temperature
CNAC
Power supply from
outdoor noise filter
circuit board
(CNAC2)
220-240V AC
CN4
Transmission to
the outdoor power
circuit board (CN4)
SWU2, SWU1
Unit address
selection
SW4
Model selection
SW1
Display selection
SW5
Function selection
SW3
Test selection
SW2
Function selection
SW6
Function selection
63HS
High pressure
sensor
CNS2
Connect to the
terminal block TB7
(For centralized control)
LEV-A
Expansion
valve
CNS1
Connect to the
terminal block TB3
(Indoor/outdoor unit
connecting wire)
49C/26C
Thermal
switch
95
CN3S
Demand
signal
CN3D
Auto change
over signal
8-8-6. Outdoor power circuit board
PUMY-125VMA
PUMY-125VMA1
CN5
Detection of primary current
(Connect to the outdoor noise
filter circuit board (CN5))
CN6
Temperature
(Radiator panel
(THHS-B))
CN3
Temperature
(Radiator panel
(THHS-A))
Brief Check of POWER MODULE
W Usually, they are in a state of being short-circuited if they are broken.
Measure the resistance in the following points (connectors, etc.).
If they are short-circuited, it means that they are broken.
1. Check of POWER MODULE
1.Check of DIODE circuit
L - P1 , N - P1 , L - N1 , N - N1
2.Check of IGBT circuit
P2 - U , P2 - V , P2 - W , N2 - U , N2 - V , N2 - W
Note:The marks, L , N , N1 , N2 , P1 , P2 , U , V and W
shown in the diagram above are not actually printed on the board.
CN4
Connect to the
outdoor controller
circuit board
(CN4)
CNAF
Connect to
ACTM
CN2
Connect to the outdoor multi circuti board (CN2)
1-5: Power circuit board
signal to the controller board (0-5V DC)
2-5: Zero cross signal (0-5V DC)
3-4: 18V DC
6-5: 15V DC
7-5: 15V DC
[ 5 : – 1, 2, 6, 7 : + ]
[ 4 : – 3 : + ]
➔ Transmitting
N1
P2
P1
W
U
N2
N
TAB-U, TAB-V,
TAB-W
Connect to the
compressor (MC)
Voltage among
phases:
V
L
5V-180V AC
SC-R, SC-S
Connect to the
outdoor noise filter
circuit board
(LO, NO)
220V-240V AC
SC-P2, SC-N2
Connect to
ACTM and the
smoothing
capacitor