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Mitsubishi Electronics PUH36EK, PUH18EK, PKH30FK, PKH36FK, PUH24EK User Manual

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Page 1
SPLIT-TYPE,HEAT PUMP AIR CONDITIONERS
MITSUBISHI ELECTRIC
-CENTRALLY CONTROLLED­ STAND BY DEFROST
ON
CHECK DRY
COOL
HEAT
CHECK
SET TEMP
TIMER OFF AUTO STOP AUTO START
F
HR
F
LOW HIGH
AUTO RETURN
CHECK TEST RUN
POWER
ON/OFF
HEAT
SET TEMPERATURE
AUTO COOL/DRY
COOLERWARMER
TIMER MODE HOURS
FAN SPEED LOW/HIOGH
AIR DISCHARGE
UP/DOWN
SWING
STOP
CHECK TEST RUN
L
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TECHNICAL & SERVICE MANUAL
No. OC120
Series PKH
<Indoor unit>
Models
PKH18FK / PUH18EK PKH24FK / PUH24EK PKH30FK / PUH30EK PKH36FK / PUH36EK
Wall Mounted
Indoor unit
CONTENTS
1. FEATURES ···········································2
2. SPECIFICATIONS·································5
3. DATA·····················································6
4. OUTLINES AND DIMENSIONS··········16
5. WIRING DIAGRAM ·····························22
6.
7. OPERATION FLOW-CHART··············26
8. MICROPROCESSOR CONTROL·······30
9. TROUBLESHOOTING························51
10. SYSTEM CONTROL···························59
11. DISASSEMBLY INSTRUCTIONS ·······64
12. PARTS LIST········································71
13. OPTIONAL PARTS·····························83
······25
REMOTE CONTROLLER
The Slim Line. From Mitsubishi Electric.
Page 2
1
MITSUBISHI ELECTRIC
-CENTRALLY CONTROLLED­ STAND BY DEFROST
ON
CHECK DRY
COOL
HEAT
CHECK
SET TEMP
TIMER OFF AUTO STOP AUTO START
F
HR
F
LOW HIGH
AUTO RETURN
CHECK TEST RUN
POWER
ON/OFF
HEAT
SET TEMPERATURE
AUTO COOL/DRY
COOLERWARMER
TIMER MODE HOURS
FAN SPEED LOW/HIOGH
AIR DISCHARGE
UP/DOWN
SWING
STOP
CHECK TEST RUN
FEATURES
Indoor unit
Remote controller
PUH24EK Outdoor unit
Models Cooling capacity / Heating capacity SEER
PKH18FK 18,000 / 18,600 [25,100] Btu/h 11.1 PKH24FK 24,000 / 25,000 [31,500] Btu/h 10.2 PKH30FK 30,000 / 33,000 [40,500] Btu/h 10.6 PKH36FK 34,200 / 38,000 [45,500] Btu/h 10.5
1. COMPACT DESIGN
The PK series models have been downsized and now require such minimal wall space that they can even be installed above windows. For the PKH18/24FK, 13in of wall space between the ceiling and the window allows “above window” installation (14.5in for the PKH30/36FK)
2. A FURTHER REFINEMENT OF COMFORT WITH NOISE SUPPRESSION
Remarkably low-noise operation has been achieved through the development of a “near-silent” fan and a design which minimizes airflow resistance.
3. AUTO FLAP SHUTTER
With a simple flick of the OFF switch the air outlet can be closed off with a shutter. The shutter also functions as a flap during operation to adjust the air flow angle, with “Auto Angle 1” securing a comfortable air flow.
4. INSTALLATION : FAST AND ENDLESSLY ADAPTABLE
(1) External piping
An external piping connection of 24in and a very light body promote trouble-free installation for PKH18FK.
(2) Multi-directional piping
Multi directional drain and refrigerant piping rodically improves flexibility in selecting installation layouts. PKH18FK drain piping can be installed in 5 directions, while PKH30/36FK models boast refrigerant piping in 4 directions and drain piping in 2 directions.
(3) Back plate installation guide
The back plate installation guide gives clear instructions on installation positions. The enlarged back plate secures the unit firmly to the wall, while the support piece which lifts the unit makes left side piping work much easier.
(4) Front power supply box
The front power supply box allows electrical wiring work to be performed easily even after the indoor unit has been fully installed. All the screws for the indoor unit can be tightened from the front side thus ensuring smooth installation. (only for PKH18/24FK)
(5) Easily removable filter
The presence of thumbscrews on the filters means that the filters can be quickly and smoothly removed. (only for PKH30/36FK)
2
Page 3
5. ADVANCED MICROPROCESSOR
Indoor unit Outdoor unit
Indoor heat exchanger
4•way valve
Accumulator
Compressor
Outdoor heat exchanger
Capillary tubes for heating
Capillary tubes for cooling
Liquid section of piping
HIgh-pressure liquid retrigerant
Restrictor
valve
Restrictor valve
Indoor unit Outdoor unit
Indoor heat exchanger
4•way valve
Accumulator
Compressor
Outdoor heat exchanger
Capillary tubes for cooling
Capillary tubes for heating
Liquid section of piping
Low-pressure two-phase retrigerant
Restrictor
valve
Restrictor valve
MITSUBISHI ELECTRIC
-CENTRALLY CONTROLLED­ STAND BY DEFROST
ON
CHECK DRY
COOL
HEAT
CHECK
SET TEMP
TIMER OFF AUTO STOP AUTO START
F
HR
F
LOW HIGH
AUTO RETURN
CHECK TEST RUN
POWER
ON/OFF
HEAT
SET TEMPERATURE
AUTO COOL/DRY
COOLERWARMER
TIMER MODE HOURS
FAN SPEED LOW/HIOGH
AIR DISCHARGE
UP/DOWN
SWING
STOP
CHECK TEST RUN
(1) Easy to Use Microprocessor
1) Ultra-Thin Remote Controller
The streamlined, square controller is designed to blend with any kind of interior and the adoption of a sophisticated microprocessor allows you to carry out a wide range of operations easily.
2) Ultra-Thin Remote Controller
Units operation mode, set temperature, room tem- perature, timer setting, fan speed, louver opera­tion, and air flow direction are displayed on the remote controller with the easily understood visual Liquid Crystal Display (LCD).
3) Convenient 24-Hour ON-OFF Timer
The timer allows Mr.SLIM to be switched on or off automatically at the time is shown on the LCD.
4) Self-Diagnostic Feature Indicates Instantly
In the rare case when a problem occurs, the unit stops operating and the set temperature indicator changes to the self-diagnostic indicator, indicating the location of the fault. If the check switch is pressed twice, the unit stops operating and the check mode is initiated. The cause of the most recent problem stored in the memory is displayed on the LCD. This is extremely useful for maintenance purposes.
5) Useful Memory Feature for Storing Instructions
The previous set value is memorized so that constant temperature control can be obtained. This is convenient when, for example, a power failure occurs.
(2) Non-polar Two-Wire Remote Controller Cables
The non-polar, two-wire type remote controller cable is slim, installation is simple and troublefree. Remote controller wire can be extended up to 550 yards.
(3) Automatic Cooling / Heating Changeover Operation
An automatic cooling and heating changeover operation system is provided to ensure easy control and year-round air conditioning. Once the desired temperature is set, unit operation is switched automatically between cooling and heating, in accordance with the room temperatures as low as 23
o
F.
6. REDI-CHARGED REFRIGERANT SYSTEM PRE-CHARGE REFRIGERANT REQUIRED FOR MAXIMUM PIPING LENGTH AT SHIPMENT. PREVENTING TROUBLES DUE TO SHORTAGE OF REFRIGERANT.
The unique refrigerant circuit and a large accumulator always controls the refrigerant to its optimum condition regardless of the length of 164ft maximum or 25ft minimum. The additional refrigerant charging work at the field which often caused uncertain problems heretofore is completely eliminated. This unique system serves to improve the quality of work and reliability, and also helps to speed up the installation work.
With normal circulation systems, a high-pressure refrigerant, condensed for cooling by the outdoor heat exacanger, is reduced in pressure by capillary tubes in the indoor unit after passing through the restrictor valve in the outdoor unit (see Figure 1). With the new circulation system, the direction of the restrictor valve is reversed as shown in Figure 2, and the condensed high pressure refrigerant is reduced in pressure by the capacity tubes in the outdoor unit. This results in a “two­phase refrigerant” of reduced pressure in the liquid section of the piping, The density of this two-phase refrigerant is 1/3~ 1/2 of that of the high pressure liquid refrigerant, and thus is required in smaller amounts (see Figures 1 and 2). As a result, the length of the piping can be extended further, and the effects of height differences are reduced. These new circulation system are also equipped with a large accumulator which allows the refrigerant required for the 100ft piping length to be enclosed in the outdoor unit. The result is an air conditioner that requires no charging unless piping is extended beyond 100ft.
3
Page 4
7. HIGH RELIABILITY AND EASY SERVICING
Red
Right
Base
Front
In addition to the self-diagnostic function, units are also equipped with a 3-minute time delay mechanism (cooling), an auto restart function, an emergency operation function, a test run switch, etc., to assure high reliability and easy servicing.
8. FOUR-WAY PIPING ACCESS MAKES INSTALLATION LAYOUT EASY
Piping on the outdoor unit may be connected from either of four directions: front, rear, side or beneath the base. This easy-access design makes it possible to install a number of units in a compact arrangement at a single site. The outdoor unit allows for unheard-of flexibility in detemining a piping layout, thus greatly simplifying installation.
9. FRONT-ACCESS FACILITATES MAINTENANCE
The outdoor unit has been designed with a frontaccess service panel that allows easy access to all maintenance point, regardless of the installation layout. What’s more, this front panel may be removed by loosening only two screws. It all adds up to greatly simplified maintenance work.
10
. NITROGEN GAS IS CHARGED TO
INDOOR UNIT
Indoor unit and refrigerant pipes are charged with nitrogen gas (N2) instead of R-22 before shipment from the factory.
4
Page 5
SPECIFICATIONS2
MODELS : PKH18/24/30/36FK
Model
Item
Capacity
Moisture removal Power
Consomption EER
SEER HSPF
COP INDOOR UNIT MODELS
External finish Power supply Max.fuse size (time dalay) Min.ampacity Fan motor Booster heater
Airflow Hi-Lo Sound level Hi-Lo
Cond. drain connection OD
Dimensions
Weight OUTDOOR UNIT MODELS External finish Power supply Max.fuse size (time dalay) Min.ampacity Fan motor
Compressor
Crankcase heater Refrigerant control Defrost method Sound level
Dimensions
Weight REMOTE CONTROLLER Control voltage (by built-in transformer) REFRIGERANT PIPING
Pipe size Connection
method Between the indoor & outdoor units
NOTES : *1.Rating conditions (cooling)-indoor : 80˚FDB,67˚FWB outdoor : 95˚FDB,75˚FWB. (heating)-indoor : 70˚FDB,60˚FWB outdoor : 47˚FDB,43˚FWB. *2.Rating conditions (heating)-indoor : 70˚FDB,60˚FWB outdoor : 17˚FDB,15˚FWB. *3.Heating capacity and power consumption in [ ] includes heater operation at 208/230V.
Operating range
Cooling
Heating
Cooling *1 Heating *1 Heating *2
Cooling *1 Heating *1 Heating *2 *1
*1 *2
Dry Wet
W D H
Model (type)
W D H
Liquid Gas Indoors Outdoors Height difference Piping length
Maximum
Minimum
Maximum
Minimum
Btu/h Btu/h Btu/h
Pints/h
kW kW kW
V,phase,Hz
V,phase,Hz
A A
F.L.A.
)
A(kW
CFM CFM
)
dB(A
in. in. in. in.
lb
A A
F.L.A.
R.L.A. L.R.A.
)
A(W
)
dB(A
in. in. in.
lb
in. in.
ft ft
Indoor intake air temperature
95˚FDB,71˚FWB 67˚FDB,57˚FWB 80˚FDB,67˚FWB 70˚FDB,68˚FWB
PKH18FK
18,000 18,600[24,100/25,100 10,700[16,200/17,200
5.3
1.79
1.56[3.16/3.46
1.34[2.94/3.24
10.1
11.1
7.2
3.5
2.3
PKH18FK
15 12
0.5
7.6/8.4[1.6/1.9 710-530 640-480
43-35
1
57
PUH18EK
20 16
0.75
RH247NAB
12 37
0.11/0.12[23/28
53
33-1/2
131
Indoor unit-remote controller:DC12V. Indoor unit-outdoor unit:DC12V
130 130
] ]
] ]
]
55-1/8 66-5/32
]
34-1/4 11-5/8
3/8 5/8
Outdoor intake air temperature
PKH24FK
24,000 25,000[30,500/31,500 14,700[20,200/21,200
7.0
2.36
2.37[3.97/4.27
1.92[3.52/3.82
10.2
10.2
6.8
3.1
2.2
PKH24FK
Munsell 3.4Y 7.7/0.8
208/230,1,60
15 12
0.5
7.6/8.4[1.6/1.9 710-530 640-480
43-35
1
57
PUH24EK
Munsell 5Y 7/1
208/230,1,60
20 16
0.65+0.65
NH33NBD
11.5 54
0.16/0.17[33/39 Capillary tube Reverse cycle
55
49-9/16
202
With indoor unit
Not supplied(optional parts)
Flared Flared
115˚FDB
0˚FDB
75˚FDB,65˚FWB 17˚FDB,15˚FWB
PKH30FK
] ]
] ]
]
9-1/4
13-3/8
]
164 164
30,000 33,000[39,100/40,500 19,000[25,100/26,500
9.1
3.12
3.02[4.82/5.22
2.48[4.28/4.68
9.6
10.6
7.1
3.2
2.2
PKH30FK
15 13
0.6
8.7/9.6[1.8/2.2 990-780 890-700
46-41
1
66
PHU30EK
30 20
0.75+0.75
NH41NAD
14.0 73
0.16/0.17[33/39
55
38-3/16 13-9/16 49-9/16
245
1/2 3/4
] ]
]
]
] ]
PKH36FK
34,200 38,000[44,100/45,500 19,600[25,700/27,100
10.5
3.44
3.54[5.34/5.74
2.65[4.45/4.85
PKH36FK
8.7/9.6[1.8/2.2 990-780 890-700
46-41
PUH36EK
0.75+0.75 NH47ND
0.16/0.17[33/39
38-3/16 13-9/16 49-9/16
] ]
9.9
10.5
6.9
3.1
2.2
13
0.6 ]
1
66
30 22
17.5 87
]
246
1/2 3/4
164 164
] ]
5
Page 6
Models
Models Outdoor intake air DB temperature(˚F
)
PKH18FK
71 67 63
62.5 60 59 71 67 63
62.5 60 59 71 67 63
62.5 60 59 71 67 63
62.5 60 59
TC
21.0
19.5
18.2
18.1
17.2
16.8
27.9
26.1
24.3
24.1
23.0
22.5
34.9
32.6
30.4
30.2
28.8
28.2
39.8
37.1
34.7
34.4
32.8
32.2
SHC
14.4
16.0
17.4
15.5
15.1
14.5
16.1
18.5
20.5
18.0
17.6
17.0
21.5
24.5
26.9
23.8
23.2
22.4
23.0
26.3
29.3
25.8
25.1
24.3
TPC
1.56
1.52
1.49
1.49
1.47
1.46
2.05
2.01
1.97
1.96
1.94
1.93
2.72
2.66
2.60
2.59
2.57
2.56
3.00
2.93
2.87
2.86
2.82
2.81
TC
20.2
18.8
17.5
17.4
16.6
16.2
26.9
25.1
23.4
23.2
22.1
21.7
33.7
31.4
29.2
29.0
27.6
27.0
38.4
35.7
33.3
33.1
31.5
30.8
SHC
13.9
15.4
16.7
14.9
14.5
14.0
15.5
17.8
19.7
17.4
16.9
16.4
20.8
23.6
25.8
22.9
22.2
21.5
22.1
25.3
28.1
24.8
24.1
23.2
TPC
1.69
1.65
1.61
1.61
1.58
1.57
2.23
2.18
2.12
2.12
2.09
2.07
2.95
2.88
2.81
2.80
2.77
2.76
3.25
3.17
3.10
3.09
3.04
3.03
TC
19.4
18.0
16.8
16.6
15.8
15.5
25.8
24.0
22.4
22.2
21.1
20.7
32.3
30.0
27.9
27.7
26.3
25.7
36.8
34.2
31.9
31.6
30.1
29.5
SHC
13.3
14.8
16.0
14.3
13.8
13.4
14.9
17.0
18.9
16.6
16.2
15.6
19.9
22.5
24.6
21.9
21.2
20.4
21.2
24.3
26.9
23.7
23.0
22.3
TPC
1.84
1.79
1.74
1.74
1.70
1.69
2.43
2.36
2.30
2.29
2.25
2.24
3.21
3.12
3.04
3.03
2.99
2.98
3.54
3.44
3.35
3.34
3.28
3.26
TC
18.5
17.1
15.9
15.8
15.0
14.6
24.6
22.9
21.3
21.1
20.1
19.7
30.8
28.6
26.6
26.3
24.9
24.4
35.1
32.6
30.3
30.0
28.5
27.9
SHC
12.7
14.0
15.2
13.6
13.1
12.6
14.2
16.3
18.0
15.8
15.4
14.9
19.0
21.5
23.5
20.7
20.1
19.4
20.2
23.1
25.6
22.5
21.8
21.0
TPC
1.99
1.93
1.88
1.87
1.84
1.83
2.63
2.55
2.47
2.47
2.41
2.39
3.48
3.37
3.27
3.26
3.21
3.19
3.83
3.71
3.61
3.59
3.52
3.50
TC
17.6
16.3
15.1
15.0
14.2
13.9
23.4
21.7
20.1
19.9
18.9
18.5
29.3
27.1
25.1
24.9
23.5
22.9
33.4
30.9
28.7
28.4
26.9
26.4
SHC
12.1
13.4
14.4
12.9
12.4
12.0
13.5
15.4
17.0
14.9
14.5
14.0
18.1
20.3
22.2
19.6
18.9
18.2
19.3
21.9
24.2
21.3
20.6
19.9
TPC
2.15
2.07
2.01
2.00
1.96
1.94
2.84
2.73
2.65
2.64
2.58
2.56
3.75
3.61
3.50
3.49
3.43
3.41
4.13
3.98
3.86
3.85
3.76
3.73
IWB
(˚F)
DB 75¡F (50%RH) DB 72¡F (50%RH) DB 70¡F (50%RH)
DB 75¡F (50%RH) DB 72¡F (50%RH) DB 70¡F (50%RH)
DB 75¡F (50%RH) DB 72¡F (50%RH) DB 70¡F (50%RH)
DB 75¡F (50%RH) DB 72¡F (50%RH) DB 70¡F (50%RH)
75 85 95 105 115
710
0.16
Airflow (
CFM
)
B.F
PKH24FK
710
0.16
PKH30FK
990
0.15
PKH36FK
990
0.14
Notes 1. B.F. : Bypass Factor, IWB : Intake air wet-bulb temperature TC : Total Capacity (x10
3
Btu/h), SHC : Sensible Heat Capacity (x10
3
Btu/h)
TPC : Total Power Consumption (kW)
2. SHC is based on 80˚FDB of indoor intake air temperature.
3. Cooling capacity correction factors and Refrigerant piping length (one way) range.
MODEL
Refrigerant piping length (one way)
PKH18FK PKH24FK PKH30FK PKH36FK
1.0
1.0
1.0
1.0
25ft
0.992
0.981
0.981
0.981
40ft
0.983
0.968
0.968
0.968
55ft
0.978
0.952
0.952
0.952
70ft
0.966
0.940
0.940
0.940
85ft
0.959
0.925
0.925
0.925
100ft
0.950
0.913
0.913
0.913
115ft
0.945
0.900
0.900
0.900
130ft
0.886
0.886
0.886
150ft
0.874
0.874
0.874
164ft
3
DATA
MODELS : PKH18/24/30/36FK
1. PERFORMANS DATA
1) COOLING CAPACITY
6
Page 7
2) HEATING CAPACITY
Models Outdoor intake air WB temperature(˚F
Models
PKH18FK
PKH24FK
PKH30FK
PKH36FK
Notes 1. IDB : Intake air dry-bulb temperature CA : Capacity (x10
2. When booster heater is "on", total capacity and total power consnmption should be added the figures described in booster heater colnmn.
•Booster heater ON : When the set temperature is higher than the room temperature by more than 5.4 deg.
•Booster heater OFF : When the set temperature is higher than the room temperature by less than 3.6 deg.
3. Heating capacity correction factors.
Airflow (CFM)
710
710
990
990
IWB (˚F)
75 70 65 75 70 65 75 70 65 75 70 65
3
Btu/h), PC : Power Consumption (kW)
15 25 35 45 55 65
CA
PC
CA
PC
CA
PC
CA
PC
CA
12.1
1.20
14.1
1.34
16.3
1.49
18.7
1.65
21.4
12.4
1.16
14.4
1.29
16.7
1.44
19.1
1.59
21.8
12.7
1.11
14.7
1.24
17.0
1.38
19.5
1.53
22.2
16.3
1.82
18.9
2.03
21.9
2.27
25.2
2.51
28.8
16.6
1.76
19.4
1.96
22.4
2.19
25.7
2.42
29.3
17.0
1.69
19.8
1.89
22.9
2.10
26.2
2.32
29.9
21.5
2.32
25.0
2.59
28.9
2.89
33.2
3.20
38.0
21.9
2.24
25.5
2.50
29.6
2.78
33.9
3.08
38.6
22.5
2.15
26.1
2.40
30.2
2.68
34.6
2.96
39.4
24.7
2.71
28.7
3.04
33.3
3.39
38.2
3.75
43.7
25.3
2.62
29.4
2.93
34.1
3.26
39.0
3.61
44.5
25.9
2.53
30.1
2.82
34.8
3.14
39.9
3.47
45.4
)
PC
1.83
1.76
1.69
2.77
2.67
2.56
3.53
3.40
3.26
4.14
3.98
3.83
CA
23.7
24.1
24.5
32.8
33.3
33.9
43.2
43.7
44.6
49.6
50.4
51.3
PC
1.99
1.91
1.83
3.01
2.90
2.78
3.86
3.72
3.56
4.49
4.28
4.14
Auxiliary heater
208V 230V
CA
PC
5.5
1.6
6.5
1.9
5.5
1.6
6.5
1.9
6.1
1.8
7.5
2.2
6.1
1.8
7.5
2.2
Models
PKH18FK PKH24FK PKH30FK PKH36FK
Less than 100ft
1.00
1.00
1.00
1.00
Refrigerant piping length (one way)
100~130ft
0.995
0.995
0.995
0.995
130~164ft
0.990
0.990
0.990
0.990
7
Page 8
2. PERFORMANCE CURVE
Does not include booster heater (1.9kW)
Total power consumption (kW) Total capacity (x10
3
Btu/h)
30
24
18
12
2.5
2.0
1.5
1.0
15 25 35 45 55 65
Total power consumption (kW) Total capacity (x10
3
Btu/h)
Outdoor intake air DB temperature ( F) Outdoor intake air WB temperature ( F)
Indoor intake air DB temperature ( F)
Indoor intake air DB temperature ( F)
65
65
70
70
75
75
30
24
18
12
2.5
2.0
1.5
1.0
63
67
71
63
67
71
SHF=0.82
PKH18FK COOLING CAPACITY
023 32 35
45 55
65
(67)
75 85 95 105 115
Indoor intake air WB temperature ( F)
Indoor intake air WB temperature ( F)
NOTES : Apoint on the curve shows the reference point.
PKH18FK COOLING CAPACITY PKH18FK HEATING CAPACITY
36
Btu/h)
3
30
24
18
12
3.0
2.5
2.0
1.5
Total power consumption (kW) Total capacity (x10
023 32 35
8
PKH24FK COOLING CAPACITY PKH24FK HEATING CAPACITY
SHF=0.71V
Indoor intake air WB temperature ( F)
71 67 63
35
Btu/h)
3
Indoor intake air DB temperature ( F)
30
24
18
Does not include booster heater (1.9kW)
12
71 67 63
Indoor intake air WB temperature ( F)
45 55
Outdoor intake air DB temperature ( F)
(67)
65
75 85 95 105 115
3.0
2.5
2.0
1.5
Total power consumption (kW) Total capacity (x10
15 25 35 45 55 65
Indoor intake air DB temperature ( F)
Outdoor intake air WB temperature ( F)
65 70 75
75 70 65
Page 9
NOTES : Apoint on the curve shows the reference point.
71 67 63
71 67 63
42
36
30
24
4.0
3.5
3.0
2.5
2.0
SHF=0.75
Total capacity(x10 Btu/h)
3
Total power consumption(kW)
Outdoor intake air DB temperature(¡F)
0 23 32 35 45 55 65 (67) 75 85 95 105 115
indoor intake air WB temperature(¡F)
indoor intake air WB temperature(¡F)
48 42 36 30 24 18
4.0
3.5
3.0
2.5
2.0
1.5 15 25 35 45 55 65
Outdoor intake air WB temperature(¡F)
indoor intake air DB temperature(¡F)
indoor intake air DB temperature(¡F)
Does not include booster heater(2.2kW)
65 70 75
75 70 65
Total capacity(x10 Btu/h)
3
Total power consumption(kW)
42
36
30
24
4.5
4.0
3.5
3.0
2.5
Total capacity(x10 Btu/h)
3
indoor intake air WB temperature(¡F)
SHF=0.71
Total power consumption(kW)
Outdoor intake air DB temperature(¡F)
indoor intake air WB temperature(¡F)
0 23 32 35 45 55 65 (67) 75 85 95 105 115
71 67 63
71 67 63
54
48
32
36
30
24
4.5
4.0
3.5
3.0
2.5
2.0 15 25 35 45 55 65
Outdoor intake air WB temperature(¡F)
indoor intake air DB temperature(¡F)
indoor intake air DB temperature(¡F)
Does not include booster heater(2.2kW)
65 70 75
75 70 65
Total capacity(x10 Btu/h)
3
Total power consumption(kW)
PKH30FK COOLING CAPACITY PKH30FK HEATING CAPACITY
PKH36FK COOLING CAPACITY PKH36FK HEATING CAPACITY
9
Page 10
3. CONDENSING PRESSURE AND SUCTION PRESSURE
350 340 330 320 310 300 290 280 270 260 250 240 230 220 210 200 190 180 170 160 150
(psi.G)
Condensing pressure
30 40 50 60 70 80 90 100 110
Outdoor ambient temperature
DB( F)
Indoor DB
temperature( F)
86 80 75 70
100
90 80 70 60 50 40 30 20
(psi.G)
Suction pressure
30 40 50 60 70 80 90 100 110
Outdoor ambient temperature
DB( F)
86 80 75 70
Indoor DB temperature( F)
350 340 330 320 310 300 290 280 270 260 250 240 230 220 210 200 190 180 170 160 150
(psi.G)
Condensing pressure
30 3520 25 45 55 6540 50 60 70
Outdoor ambient temperature
DB( F)
75 70 65
Indoor DB temperature( F)
80 70 60 50 40 30 20 10
(psi.G)
Suction pressure
30 3520 25 45 55 6540 50 60 70
Outdoor ambient temperature
DB( F)
75 70 65
Indoor DB temperature( F)
Data is based on the condition of indoor humidity 50%. Air flow should be set at HI. A point on the curve shows the reference point.
<Cooling mode>
PKH18FK PKH18FK
Data is based on the condition of outdoor humidity 75%. A point on the curve shows the reference point.
<Heating mode>
PKH18FK PKH18FK
10
Page 11
Data is based on the condition of indoor humidity 50%.
360 350 340 330 320 310 300 290 280 270 260 250 240 230 220 210 200 190 180 170 160
(psi.G)
Condensing pressure
30 40 50 60 70 80 90 100 110
Outdoor ambient temperature
DB( F)
Indoor DB
temperature( F)
86 80 75 70
100
90 80 70 60 50 40 30 20
(psi.G)
Suction pressure
30 40 50 60 70 80 90 100 110
Outdoor ambient temperature
DB( F)
86 80 75 70
Indoor DB temperature( F)
350 340 330 320 310 300 290 280 270 260 250 240 230 220 210 200 190 180 170 160 150
(psi.G)
Condensing pressure
30 3520 25 45 55 6540 50 60 70
Outdoor ambient temperature
DB( F)
75 70 65
Indoor DB temperature( F)
80 70 60 50 40 30 20 10
(psi.G)
Suction pressure
30 3520 25 45 55 6540 50 60 70
Outdoor ambient temperature
DB( F)
75 70 65
Indoor DB temperature( F)
Air flow should be set at HI. A point on the curve shows the reference point.
<Cooling mode>
PKH24FK PKH24FK
Data is based on the condition of outdoor humidity 75%. A point on the curve shows the reference point.
<Heating mode>
PKH24FK PKH24FK
11
Page 12
Data is based on the condition of indoor humidity 50%.
350 340 330 320 310 300 290 280 270 260 250 240 230 220 210 200 190 180 170 160 150
(psi.G)
Condensing pressure
30 40 50 60 70 80 90 100 110
Outdoor ambient temperature
DB( F)
86 80 75 70
110 100
90 80 70 60 50 40 30
(psi.G)
Suction pressure
30 40 50 60 70 80 90 100 110
Outdoor ambient temperature
DB( F)
86 80 75 70
Indoor DB temperature( F)
Indoor DB temperature( F)
340 330 320 310 300 290 280 270 260 250 240 230 220 210 200 190 180 170 160 150 140
(psi.G)
Condensing pressure
30 3520 25 45 55 6540 50 60 70
Outdoor ambient temperature
DB( F)
75 70 65
Indoor DB temperature( F)
80 70 60 50 40 30 20 10
(psi.G)
Suction pressure
30 3520 25 45 55 6540 50 60 70
Outdoor ambient temperature
DB( F)
75 70 65
Indoor DB temperature( F)
Air flow should be set at HI. A point on the curve shows the reference point.
<Cooling mode>
PKH30FK PKH30FK
Data is based on the condition of outdoor humidity 75%. A point on the curve shows the reference point.
<Heating mode>
PKH30FK PKH30FK
12
Page 13
Data is based on the condition of indoor humidity 50%.
350 340 330 320 310 300 290 280 270 260 250 240 230 220 210 200 190 180 170 160 150
(psi.G)
Condensing pressure
30 40 50 60 70 80 90 100 110
Outdoor ambient temperature
DB( F)
86 80 75 70
90 80 70 60 50 40 30 20
(psi.G)
Suction pressure
30 40 50 60 70 80 90 100 110
Outdoor ambient temperature
DB( F)
86 80 75 70
Indoor DB temperature( F)
Indoor DB temperature( F)
390 380 370 360 350 340 330 320 310 300 290 280 270 260 250 240 230 220 210 200 190
(psi.G)
Condensing pressure
30 3520 25 45 55 6540 50 60 70
Outdoor ambient temperature
DB( F)
75 70 65
Indoor DB temperature( F)
80 70 60 50 40 30 20 10
(psi.G)
Suction pressure
30 3520 25 45 55 6540 50 60 70
Outdoor ambient temperature
DB( F)
75 70 65
Indoor DB temperature( F)
Air flow should be set at HI. A point on the curve shows the reference point.
<Cooling mode>
PKH36FK PKH36FK
Data is based on the condition of outdoor humidity 75%. A point on the curve shows the reference point.
<Heating mode>
PKH36FK PKH36FK
13
Page 14
4. STANDARD OPERATION DATA
Models
Item
Electrical circuitRefrigerant circuitIndoor sideOutdoor side
Voltage Frequency Total input Indoor fan current Booster heater current Outdoor fan current Comp. current Condensing pressure Suction pressure Discharge temperature Condensing temperature Suction temperature Comp.shell bottom temperature Ref. pipe length Refrigerant charge
Fan speed Airflow (High)
Fan speed upper/lower Airflow
Unit
V
Hz
kW
A A A
A psi.G psi.G
˚F ˚F ˚F ˚F
ft
˚F ˚F ˚F
˚F r.p.m. CFM
˚F
˚F r.p.m. CFM Btu/h
208/230
1.79
0.5
0.75
7.4/6.9 255
81 182 118
66 171
80
67
61
59
95
75
18,000
0.82
60
Cooling
208/230
1.56
0.5
7.6/8.4
0.75
6.1/5.9 202
61 126 102
34
111
70
60
96
68
47
43
18,600
Heating
PKH18FK
208/230
2.36
0.5
0.65+0.65
9.3/8.7 240
75
158
115
46
141
80 67 58 56
95 75
24,000
0.71
60
Cooling
208/230
2.37
0.5
7.6/8.4
0.65+0.65
9.5/8.7 243
63 149 115
35 126
70
60 105
70
47
43
25,000
Heating
PKH24FK
208/230
3.12
0.5
0.75+0.75
12.6/11.8 245
80 158 115
49 138
80
67
59
58
95
75
30,000
0.75
60
Cooling
208/230
3.02
0.5
7.6/8.4
0.75+0.75
12.2/11.4 236
60 159 113
32 130
70
60 103
70
47
43
33,000
Heating
PKH30FK
208/230
3.44
0.5
0.75+0.75
14.3/13.2 243
74 160 115
45 142
80
67
58
56
95
75
34,100
0.71
60
5 lbs 8 oz
1,490
710
1,490
710
1,490
990
1,490
990
790
1,590
750/750
3,170
760/760
3,350
760/760
3,350
25
9 lbs 15 oz
25
10 lbs 2 oz
25
10 lbs 9 oz
Cooling
208/230
3.54
0.5
8.7/9.6
0.75+0.75
14.7/13.7 263
60 170 120
33 148
70
60 109
71
47
43
38,000
Heating
PKH36FK
Intake air temperature
Discharge air temperature
Intake air temperature
Capacity SHF
DB
WB
DB
WB
DB
WB
14
Page 15
5. OPERATING RANGE
1) POWER SUPPLY
1 Phase 60Hz 208/230V Guaranteed voltage range
2) OPERATION
Min. Max. 198V 208V 230V 253V
Function
Cooling
Heating
Air intake temperature
Condition
Standard temperature Maximum temperature MInimum temperature Maximum humidity Standard temperature Maximum temperature MInimum temperature
DB(˚F
80 95 67 80 70 80 70
Indoor
)
6. OUTLET AIR SPEED AND COVERAGE RANGE
Model
PKH18FK PKH24FK PKH30FK PKH36FK
Airflow (
CFM
710 710 990 990
)
Air speed
(
ft/sec
16.1
16.1
17.7
17.7
)
Coverage
range(ft
41 41 50 50
)
Outdoor
WB(˚F
67 71 57 75 60 67 60
)
DB(˚F
95
115
23 80 47 75 17
)
WB(˚F
75 — — 75 43 65 15
)
The air coverage range is the value up to the position where the air speed is 0.8ft/sec. when air is blown out horizontally from the unit at the High notch position. The coverage range should be used only as a general guideline since it varies according to the size of the room and furniture installed inside the room.
7. ADDITIONAL REFRIGERANT CHARGE (R-22(oz))
Refrigerant piping length (one way)
55ft
70ft
85ft
0
0
0
0
0
0
0
0
0
0
0
0
100ft
0 0 0 0
Model
PKH18FK PKH24FK PKH30FK PKH36FK
Outdoor unit
precharged
(
up to 100ft
5 lbs 8 oz 9 lbs 15 oz 10 lbs 2 oz 10 lbs 9 oz
)
25ft
40ft
0
0
0
0
0
0
0
0
115ft
2 2 5 5
130ft
4
4 10 10
150ft
7 16 16
164ft
9 20 20
15
Page 16
9-1/4
1-25/32
9-1/4
1-25/32
9-1/4 9-1/4
1-25/32
1/2
13-3/8
7-3/4
Top
Front
Right side
Left side
55-1/8
42-15/16
Air intake
9-1/4
C
Knock out hole for right piping
Refrigerant pipe. Drain pipe
Knock out hole for
left piping
Drain hose for
left-hand side piping
Drain hose
Lower side
Auto vane
(Gas pipe)
Drain hose
Bolt
Gas pipe
19/32
Terminal block for power supply
Terminal block for control
Terminal block for remote controller
(Liquid pipe)
Liquid pipe
Gas pipe
Liquid pipe
A
1-3/16
1-15/32
1-17/32
3-27/32 2-9/16
2-29/32
5/32
3-15/16
1-17/32
1-3/16
1-15/32
2-29/32
5/32
1-5/32
11-1/32
1-3/16
7-1/4
1-3/16
3-5/32
1-3/18
2-3/8
13/32
1-17/32
1-15/32
2-9/16
3-15/16
A
B
C
Knock out hole for piping
31/32
43-11/16
7-7/32
9-7/16
B
55-1/8
20-9/16
4-23/32
2-5/32
4-1/32
4-3/8
Air outlet
20-9/16
Air outlet
Change vane (manual)
Under panel
Removable at left-hand
side piping
Knock out hole for under-piping
Refrigerant pipe. Drain pipe
Rear piping opening
Range for left rear piping opening
Hole for
tapping screw
66-{1/4 hole for
tapping screw
Wall fixture
Unit center
32-{15/32
hole for bolt
23/32
3-19/32
35-7/16
38-31/32
17-29/32
11-7/32
9-21/32
3/4
9-7/16 11-1/32 12-3/8
24
Drainage range
on left-hand side
Drainage range
on right-hand side
10x3-19/32=(35-13/16)
7-3/32
2-15/32
8-27/32
7-17/32
23/32
4
OUTLINES AND DIMENSIONS
4.1. Indoor Unit PKH18/24FK
Unit : mm
16
Page 17
PKH 30/36FK
Unit : mm(inch)
3/4F
Through hole
Liquid pipe 1/2F
Gas pipe
1
2
C
3-1/2 3-1/2~ 4
Sleeve >< 1
>< 1 Sleeves are availaable
on the market.
2-15/32
1/2
9-1/4
1-25/32
9-1/4
Right side
for right piping
Knock out hole
7-3/4
19/32
Bolt
or less
2
2-9/32
1-21/32
4-3/8
4-1/32
2-5/32(Gas pipe)
4-23/32(Liquid pipe)
7-7/32
B
9-7/16
1
9-1/4
1-25/32
Front
66-5/32
Top
9-1/4
1-25/32
9-1/4
1-25/32
9-1/4
53-15/16 Alr Intake
13-3/8
Terminal block for control
Terminal block for powar supply
Terminal block for remote controller
Drain hose
43-11/16 (Drain hose)
Lower side
55-1/8
27-5/16 Air outlet 27-5/16 Air outlet
louvers(manual)
left-hand piping)
Under panel (Removable at
11-1/32
1-5/32
3-5/32
1-3/16
1-3/16 7-1/4 13/32
Knock out hole for under-piping
Refrigerant pipe .Drain pipe
Auto vanes
2-3/8
1-3/16
7-17/32
12- 1/4 hole
for tapping screwRear piping hole
Front
or more 1-3/16
Knock out hole
3-15/16
for left piping
5/32
1-17/32
1-15/32
2-29/32
2-9/16
5-/15/16 or less
Left side
Air
outlet
Air
intake
10 or more
A
C
1-3/161-3/16
1-15/32
2-9/163-27/32
31/32
Drain hose for
B
2 or more 10 or more
Knock out hole for wiring
A
1-17/32 3-15/16
1-15/32
1-17/32
2-29/32
5/32
9-21/32
Drainage range on
right-hand side
left-handside piping
50
Unit center
Unit out line
Drainage range on
Left hand side
23-7/16
13x3-19/32=(7-3/16) 11-7/32
Wall fixture
3/4
3-19/32
35-7/16
23/32
23/32
84- 1/4 hole
for tapping
screw
29-17/32
9-7/16 7-3/328-27/32 11-1/32 12-3/8
Range for left
11-5/8
rear piping hole
41- 15/32 hole
for bolt
Range for left rear piping hole
17
Page 18
4.2. Outdoor Unit PUH18EK
Terminal block for indoor and outdoor unit connection
Terminal block for power line
Ground
terminal
Handie for moving
Service panel
Refrigerant pipe
(Flared) 5/8
Knock out hole
for front piping
4-3/4
(refrigerant. drainage
and wiring)
4-1/8
Drain hole
Drain hole
2-U-shaped
notched
holes
1-5/8
1-3/4
1/5/16
Bottom piping hole
2-9/16
3-1/8
R13/16
Front right piping holes-
detail figures
Standard bolt length
1 max.
1/2
1/2x7/8 Oval hoies
(standard bolt W3/8(M10)
Knock out hole for
right piping
(refrigerant. drainage
and wiring)
15-7/8
7-1/18 20-5/18
17-3/18
1
2
13-7/4
13-7/8
21-3/4
2-3/820-5/81-9/16
33-9/16
34-1/4
11-7/8
7-9/32 7-9/32
Front opening
Service space
(for N.E.C)
1/2
36
36
4
Note:Allow adequate
upper clearance.
1/2
8
1/2
1-9/161-1/16
13
14-1/4
11/169/16
19-11/16
Refrigerant pipe
(Flared) 3/8
Outlet guide
installation hole
1
40
1/2
Outdoor Unit-Necessary surrouding clearance
(Concentrated installation)
The upper side must be open.
4
8
For 10 units or less
11-5/8
Side air intake
Handle for
moving
Rear fresh
air intake
Rear piping hole
Handle for moving
3-3/4
5-7/16
2-3/8
Knock out holes for
power line 1-1/16
1-3/4
2-1/16
Air intake
Air intake
Air outlet
11/16
R1/4
R13/16
Unit : mm
18
Page 19
Outdoor Unit PUH24EK
Terminal block for
indoor and outdoor
unit connection
Terminal block for power line
Ground
terminal
Handie
for moving
Service panel
Refrigerant pipe
(Flared) 5/8F
Knock out hole
for front piping
4-3/4
(refrigerant. drainage
and wiring)
4-1/8
Drain hole
Drain hole
2-U-shaped
notched
holes
2-1/16
2-1/4
1/9/16
Bottom
piping hole
2-9/16
3-1/8
R13/16
Front right piping holes-
detail figures
Standard bolt length
1 max.
1/2
2-1/2x7/8 Oval hoies
(standard bolt M10)W3/8(M10)
Knock out hole
for right piping
(refrigerant.
drainage and wiring)
3-1/4
20-5/8 20-5/82-3/8
13-9/16 23-1/16
1
2
15-1/16
37-34
2-3/820-5/81-9/16
49-1/2
34-1/4
11-7/8
7-9/32 7-9/32
Front opening
Service space
(for N.E.C)
3/8
36
36
4
Note:Allow adequate
upper clearance.
Outdoor Unit - necessary surrounding clearance
1/2
12
1/2
1-9/161-1/16
13
14-1/4
11/169/16
19-11/16
Refrigerant pipe
(Flared) 3/8F
Outlet guide
installation hole
1
40
1/2
Outdoor Unit-Necessary surrouding clearance
(Concentrated installation)
The upper side must be open.
6
12
For 10 units or less
11-5/81/4
Side air intake
Handle
formoving
Rear fresh
air intake
Rear piping hole
Handle for moving
3-3/4
5-7/16
2-3/8
Knock out holes for
power line 1-1/16
1-3/4
2-1/16
Air intake
Air intake
Air outlet
11/16
R1/4
R13/16
15-7/8
Unit : mm
19
Page 20
Outdoor Unit PUH30/36EK
Unit : mm
12
Outdoor Unit - necessary surrounding clearance
6
upper clearance.
Note:Allow adequate
1/2
Front opening
1/2
11/169/16
Air intake
23-5/8
7-9/32 7-9/32
36
1/2
Terminal block for
16-1/4
14-31/32
1-9/16 1-1/16
Air intake
Service space
indoor and outdoor
Air outlet
(for N.E.C)
36
unit connection
Terminal block for power line
38-3/16
13-7/8
Service panel
Ground
Handie
terminal
49-1/2
for moving
Refrigerant pipe
(Flared)
(PUH30/36EK) 3/4
(PUH42EK)7/8F
37-3/4
20-5/8 20-5/82-3/8
1-3/4
Refrigerant pipe
(Flared) 3/8F
15-7/8
15-1/16
3-1/4
13-9/16 23-1/16
2-1/16
Knock out holes for
power line 1-1/16
4-3/4
2-3/8
Knock out hole
for front piping
(refrigerant. drainage
and wiring)
2-3/820-5/81-9/16
1/9/16
4-1/8
2-1/2x7/8 Oval hoies
(standard bolt W3/8(M10)
R13/16
Knock out hole
for right piping
(refrigerant.
2-1/4 2-1/16
Bottom
Drain hole
Standard bolt length
1 max.
3-1/8
R13/16
drainage and wiring)
R1/4
piping hole
2-U-shaped
notched
holes
Drain hole
2-9/16
Front right piping holes-
detail figures
11/16
1/2
20
12
40
The upper side must be open.
For 10 units or less
1/2
Outdoor Unit-Necessary surrouding clearance
(Concentrated installation)
6
Outlet guide
installation hole
1
13-9/161/4
Side air intake
Handle
formoving
Handle for moving
Rear fresh
air intake
1-5/16
7/8
Rear piping hole
3-3/4
5-7/16
Page 21
Remote controller (PKH series)
•
2-3/4
CENTRALLY CONTROLLED STAND BY DEFROST
AUTO DRY
HEAT COOL
CHECK
SET TEMP
TIMER OFF
AUTO STOP
AUTO START
LOW HIGH
F
ON
AIR SWEEP
•
HEAT AUTO COOL/DR Y
F
SET
TEMPERATURE
TIMER MODE HOURS
HR
FAN SPEED LOW/HIGH
AIR DISCHARGE
3-5/8 3-5/8 5/8
—
ON/OFFPOWER
WARMER COOLER\
4-3/4
4-1/4
UP/DOWN SWING/STOP
Unit : mm
A
3-9/32
CHECK TEST RUN
CHECK TEST RUN
4-3/4 4-3/4
1/2
5/32
Rear side wiring arrangement opening
Side wiring arrangement opening
5/16
Fixing holes
3/16
3/8
1/2
1/4
2
VIEW A
21
Page 22
5
WIRING DIAGRAM
MODELS PKH18/24/30/36FK
MF
C
I.B
RED
WHT
BLK
FAN1
X4
X4
SW2
ON OFF
123456
POWER SUPPLY ~(1 PHASE) AC208/230V 60Hz
SYMBOL
C
FAN MOTOR CAPACITOR CN1<R.B> PROGRAM TIMER CONNECTOR CN2<R.B> REMOTE SWITCH CONNECTOR CN21<I.B> LOSSNAY CONNECTOR CN27<I.B> DRAIN LIFT-UP MECHANISM CONNECTOR CN51<I.B> CENTRALLY CONTROL CONNECTOR F1,2<I.B> FUSE (6A250V) FS1,2 THERMAL FUSE <243°F / 18, 24FK : 10A. 30.36FK : 16A> H HEATER I.B INDOOR CONTROLLER BOARD J1 MODE SELECTOR JUMPER RESISTORS J5 MODE SELECTOR JUMPER RESISTORS J9 MODE SELECTOR JUMPER RESISTORS LCD<R.B> LIQUID CRYSTALDISPLAY LED1<I.B> LED (DC 12V POWER) LED2<I.B> LED (DC 5V POWER) MF FAN MOTOR MV VANE MOTOR
L1 L2
GR
WIRING DIAGRAM
RED
BLE
WHT
F1
SW3SW7
ON OFF
12
J1J9J5
456789
88H
563
4
YLW YLW
LED1 12V POWER
REDRED BLU
ZNR
CN27
D.U.M
CND
POWER
SW6
12342 4
TB2
NAME
F2
1234
RED BLU
GRN/YLWGROUND
230V 208V
RED
CNT
TRANS
LED2 5V POWER
HEATER
CN24
L1
POWER SUPPLY ~(1 PHASE)
L2
AC208/230V 60Hz
TB2
MODELS
TB5
BLU 2 BLU 1
TB4
BRN 3 ORN 2 YLW
RT2
RT1
5 6
78
GR
GROUND
18.24FK 30.36FK
ON
SW7
OFF
1234
TRANSMISSON WIRES DC12V
TO OUTDOOR UNIT CONNECTING WIRES-POLAR DC12V
1
R.B
1 2 3
CN2
LCD
CN1
1 2 3 4 5 6
GRY
26H
GRY
ON OFF
1234
TB6
SW17
09876542321
NAME
1 2
OFF ON
661
CNGV
VANE
CENTRALLY
CONTROL
DRAIN
CN50
FS2HFS1
T
POWER
CN51
10VAC
14.3VAC
RED
4 3 2 1
4 3 2 1
REMOCON
CN40
5 4 3 2 1
INTAKE
CN24
HEATER
RT1
RT2
RED
BRN
PEMOCON
CN21
PIPE
CN20
SYMBOL
GRN/YLW
MV
BRN
CN4T
TRANS
TO
CN22 CN30
OUTDOOR
3 2 12 1
2 1 2 1
LOSSNAY
CN21
I.B
88H
BWN YLW
1 2
ROOM TEMP. THERMISTOR (32°F / 15KΩ, 77°F / 5.4KΩ DETECT)
INDOOR COIL THERMISTOR
(32°F / 15KΩ, 77°F / 5.4KΩ DETECT) SW2<I.B> ADDRESS SELECTOR SW3<I.B> EMERGENCY OPERATION SW6<I.B> MODEL SELECTOR SW7<I.B> MODEL SELECTOR SW17<I.B> ADDRESS SELECTOR T TRANSFORMER TB2 POWER TERMINAL BLOCK TB4 INDOOR / OUTDOOR CONNECTING LINE TERMINAL BLOCK TB5 REMOTE CONTROLLER TERMINAL BLOCK TB6 TRANSMISSION LINE X4<I.B> FAN MOTOR RELAY ZNR VARISTOR 26H HEATER THERMALSWITCH 88H HEATER CONTACTOR
R.B REMOTE CONTROLLER BOARD
NOTES :
1. Since the indoor fan motor (MF) is connected with 230V power, using 208V power will require a setting change of the dip switch (SW7<I.B>) on the indoor con­troller board as shown in fig :
fig w1
Indoor fan motor (MF) for 208V.
2. Since the indoor transformer (T) is connected with 230V power if 208V power is used. Change the wiring connection showing fig : w 2.
fig w2
When power supply is
w 1.
230V
SW7
ON OFF
1
2 3 4
240V 208V
ON OFF
YELLOW REDYELLOW
1
2 3 4
3. Since the outdoor side electric wiring may change be sure to check the outdoor unit electric wiring for servicing.
4. Indoor and outdoor connecting wires are made with polarities, make wiring matching terminal numbers.
5. Symbols used in wiring diagram above are,
6. Emergency operation
¤¤ : Connector, / : Terminal block.
If remote controller or microcomputer fails but there is no other trouble, emergency operation is possible by setting dip switch (SW3<I.B>) on the indoor con­troller board.
[Check items] (1)Make sure that no other trouble exist the outdoor unit. Trouble with the outdoor unit prevents emergency operation.
(If any trouble exists the outdoor unit error code "P8" will be displayed on the remote controller and the trouble position will be shown on the outdoor controller board LED. See electric wiring diagram of the outdoor unit for details.)
(2)Make sure that there is no trouble with the indoor fan.
Emergency operation will be continuous operation mode due to power ON/OFF (ON/OFF with the remote controller is not possible).
[Emergency operation procedure] (1)Set the dip switch (SW3<I.B>) on the indoor controller board to 1 on and 2 off for cooling and 1 - 2 on for heating. (2)Turn on outdoor unit side circuit breaker, then indoor unit side circuit breaker. (3)During emergency operation indoor fan runs at high speed but automatic vane remains stopped.
If the air outlet is blocked up with the vane, Open it with your hands.
(4)Thermostat will not function. Cold air blows out for defrosting during heating thus do not operate defrosting for along time. (5)Emergency cooling should be limited to 10 hours maximum. (The indoor unit heat exchanger may freeze). (6)After every operation, switch the fan connector to FAN1, and set all dip switches (SW3<I.B>) to OFF.
22
BG79N687H01
Page 23
MODELS PUH18EK
LD8
LD7
LD6
LD5
LD4
LD3
LD2
LD1
O.B
SW1 SW2 SW3
OFF ON
2 1
CN2
RT
LED
1 2 3
TB3
YLW ORN BRN
FROM INDOOR UNIT CONNECTING WIRES
12V DC (polar)
L1 L2 GR
GRN
TB1 POWER SUPPLY 1{ 208/230V 60Hz
3 2 1
CN3
CN4T
4 3 2 1
CN4
4 3 2 1
BRN 12.3V AC
RED 12.3V AC
MF
BLU
BLU
WHT
BLU
WHT
WHT
RED
RED
ORN ORN
C1
MF2
MF1
FC
26C
63H2
63H1
63H1
51CM
5
BRN
BRN
YLW
YLW
YLW
YLW
RED
RED
BLU
63H2
MC
R
C
C
S
2 1
51C
52C
BLU
BLU
WHT
RED
WHT
UR
T W
RED
RED
RED
ORN
BLK
BLK
T
208V
230V
21R
RED
RED
RED
RED
SV
WHT
WHT
TRF
21 S4
BLK
BLK
BLK
BLK
21S4
52C
GRY
GRY
GRY
GRY
52C
WHT
WHT
CH ZNR
R/1
S/2
T/3
BLU BLU
F
HC
WHT WHT
4
S
A
B
X11X12X13X14
X14
X13 X12 X11
4 3 2 1
C C1 F<O.B> FC<O.B> HC LD1~LD8 MC MF O.B
COMPRESSOR CAPACITOR FAN CAPACITOR FUSE<6A> FAN CONTROLLER CRANKCASE HEATER LED<CHECK,SERVICE> COMPRESSOR FAN MOTOR<INNER THERMOSTAT> OUTDOOR CONTROLLER BOARD
WIRING DIAGRAM
RT
SW1•2•3<0.B> T TB1,3 X11<O.B> X12<O.B> X13<O.B>
OUTDOOR COIL THERMSTOR <32˚F/15kΩ,77˚F/5.4kΩ> SELECTOR<CHECK,SERVICE> TRANSFORMER TERMINAL BLOCK CRANKCASE HEATER RELAY COMPRESSOR RELAY R.V RELAY
X14<O.B> ZNR<O.B> 21R 21S4 51C 52C 63H1 63H2
BYPASS VALVE RELAY VARISTOR BYPASS VALVE COIL R.V COIL OVERCURRENT RELAY CONTACTOR
CONTROL HIGH PRESSURE SWITCH
PROTECT HIGH PRESSURE SWITCH
SW3
How to use SW1 and 2
● Pressing erases the past check contents
SW1
loaded on the microcomputer.
● The output display (light) remains during opera­tion but pressing displays the past check
SW2
contents in flashing mode. Pressing the switch again retums to output display (light).
White connector
When Power Supply is 208V
w
RED WHITE
ORANGE
208V 230V
Main function of LED(when both Nos.1 and 2 of are "OFF")
LED NO. Output display (light) Check display (flash)
LD1 Compressor indoor command — LD2 Heating indoor command — LD3 63H1 ON RT short/open LD4 Compressor ON 63H2 funcitons LD5 Outdoor fan ON — LD6 R.V.coil ON — LD7 Bypass valve ON RT overheat protection LD8 Crankcase heater ON Defective input
NOTES : 1. If the operation stops to function of the protection device, the check display flashes.
CAUTION FOR SERVICING
● The connector marked The compressor stops by disconnecting the white connector as shown at the right.
CAUTIONS FOR POWER SUPPLY WIRING
2. Symbols used in wiring diagram above are. / :Terminal block, ¤¤¤ :Connector, ¤ :PC board insertion tab.
● Since LD8 lights when normal power is turned "ON", check the power supply with the "ON" or "OFF" LD8.
w Since the indoor transformer (T) is connected with 230V power, if 208V power is used,
change the wiring connection as shown in the right figure.
CAUTION FOR INDOOR AND OUTDOOR CONNECTING WIRES
● Since the indoor and outdoor connecting wires has polarity, make sure to connect the same terminal numbers (1,2,3) for indoor and outdoor units.
s
—¤— is to turn the compressor ON-OFF during servicing.
23
Page 24
MODELS PUH24/30/36EK
LD8
LD7
LD6
LD5
LD4
LD3
LD2
LD1
O.B
SW1 SW2 SW3
OFF ON
2 1
CN2
RT
LED
1 2 3
TB3
YLW ORN BRN
FROM INDOOR UNIT CONNECTING WIRES
12V DC (poler)
L1 L2 GR
GRN
TB1 POWER SUPPLY 1[ 208/230V 60Hz
3 2 1
CN3
CN4T
4 3 2 1
CN4
4 3 2 1
BRN 12.3V AC
RED 12.3V AC
MF1
BLU
BLU
WHT
WHT
BLU WHT
RED
RED
ORN ORN
C1
MF2
YLW YLW
BLU
WHT
BRN
WHT WHT
BRN
BLU BLU
C1
MF2
MF1
FC
26C
63H2
63H1
63H1
51CM
5
BRN
BRN
YLW
YLW
YLW
YLW
RED
RED
BLU
63H2
MC
R
C
C
S
52C
BLU
BLU
WHT
RED
WHT
UR
T W
RED
RED
RED
ORN
BLK
BLK
T
208V
230V
21R
RED
RED
RED
RED
SV
WHT
WHT
TRF
21 S4
BLK
BLK
BLK
BLK
21S4
52C
GRY
GRY
GRY
GRY
52C
WHT
WHT
CH ZNR
R/1
S/2
T/3
BLU BLU
F
HC
WHT WHT
4
S
A
B
X11X12X13X14
X14
X13 X12 X11
4 3 2 1
1 2 3 4
C C1,2 C5 F<O.B> FC<O.B> HC LD1~LD8 MC MF1,2
COMPRESSOR CAPACITOR FAN CAPACITOR COMPRESSOR STARTCAPACITOR FUSE<6A> FAN CONTROLLER CRANKCASE HEATER LED<CHECK,SERVICE> COMPRESSOR<INNER THERMOSTAT> FAN MOTOR<INNER THERMOSTAT>
WIRING DIAGRAM
O.B R
RT SW1•2•3<O.B>
T TB1,3 X11<O.B> X12<O.B>
OUTDOOR CONTROLLER BOARD
RESISTOR OUTDOOR COIL THERMISTOR <32˚F/15kΩ, 77˚F/5.4kΩ> SELECTOR<CHECK,SERVICE> TRANSFORMER TERMINAL BLOCK CRANKCASE HEATER RELAY COMPRESSOR RELAY
X13<O.B> X14<O.B> ZNR<O.B> 19 21R 21S4 52C 63H1 63H2
R.V RELAY BYPASS VALVE RELAY VARISTOR COMPRESSOR STARTRELAY BYPASS VALVE COIL R.V COIL CONTACTOR CONTROL HIGH PRESSURE SWITCH PROTECT HIGH PRESSURE SWITCH
NOTES : Symbols used in wiring diagram above are. / :Terminal block, ¤¤¤ :Connector, ¤ :PC board insertion tab.
s
White connector
w
When Power Supply is 208V
RED WHITE
ORANGE
208V 230V
CAUTION FOR SERVICING
● The connector marked The compressor stops by disconnecting the white connector as shown at the right.
CAUTION FOR POWER SUPPLY WIRING
● Since LD8 lights when normal power is turned "ON", check the power supply with the "ON" or "OFF" LD8.
w Since the indoor transformer (T) is connected with 230V power, if 208V power is used,
change the wiring connection as shown in the right figure.
—¤— is to turn the compressor ON-OFF during servicing.
CAUTION FOR INDOOR AND OUTDOOR CONNECTING WIRES
● Since the indoor and outdoor connecting wires has polarity, make sure to connect the same terminal numbers (1,2,3) for indoor and outdoor units.
24
Page 25
6
Indoor unit Outdoor unit
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
Indoor coil thermistor RT2
Distributor
Restrictor valve
Capillary tube
({0.126x{0.071x15.7)
({0.126x{0.071x9.8)
PKH30FK({0.157x{0.079x11.4) PKH36FK({0.157x{0.079x11.4)
Capillary tubesize:(ODxIDxLength) The symbol { indicates diameter.
Capillary tube ({0.157x{0.079 x33.5)
Refrigerant pipe (option) {3/8" (with heat insulator)
Refrigerant pipe (option) {5/8" (with heat insulator)
Ball valve (with service port)
Ball valve
Strainer
Strainer
Strainer
Flared connection
Accumulator
Muffler
Flexible tube
Compressor
Service port (check)
Service port (check)
Fusible plug
Bypass valve
Oil separator
4-way valve
Control high pressure switch
Protect high pressure switch
Outdoor coil thermistor RT
Restrictor valve
Indoor coil thermistor RT2
Distributor
Restrictor valve
Capillary tube
Capillary tube ({0.126x{0.063 x17.3)x2
Refrigerant pipe (option) {3/8" (with heat insulator)
Refrigerant pipe (option) {5/8" (with heat insulator)
Ball valve (with service port)
Ball valve
Strainer
Strainer
Strainer
Flared connection
Accumulator
Muffler
Flexible tube
Compressor
Service port (check)
Service port (check)
Fusible plug
Bypass valve
Oil separator
4-way valve
Control high pressure switch
Protect high pressure switch
Outdoor coil thermistor RT
Restrictor valve
Indoor coil thermistor RT2
Distributor
Restrictor valve
Capillary tube
Capillary tube PUH30EK ({0.157x{0.079 x23.6)x2 PUH36EK ({0.157x{0.079 x17.7)x2
Capillary tube
Refrigerant pipe (option) {1/2" (with heat insulator)
Refrigerant pipe (option) {3/4 (with heat insulator)
Ball valve (with service port)
Ball valve
Strainer
Strainer
Strainer
Flared connection
Accumulator
Muffler
Flexible tube
Compressor
Service port (check)
Service port (check)
Fusible plug
Bypass valve
Oil separator
4-way valve
Control high pressure switch
Protect high pressure switch
Outdoor coil thermistor RT
Restrictor valve
COOL HEAT
w
PKH18FK
REFRIGERANT SYSTEM DIAGRAM
PKH24FK
PKH-30/36FK
25
Page 26
7 OPERATION FLOW-CHART
START
Power circuit
breaker
Check SW
ON twice
Operation SW
ON
“OFF” timer
“ON” timer
STOP
Set time complete
Set time complete
1
NO
NO
NO NO
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
w 1
w 2
w 3
w 4
w 5
w 7
w 6
PROTECTION DEVICE SELF HOLD RELEASE
Remote controller
indicator lamp OFF
Trouble STOP
Remote controller
operation display
Operating mode
(COOL)
Operating mode
(DRY)
Operating mode
(HEAT)
Operating mode
(FAN)
Auto COOL/HEAT
operation
COOL operation
DRY operation
HEAT operation
FAN operation
Trouble
PROTECTION DEVICE
SELF HOLD
Remote controller
trouble display
Indoor side
Outdoor side
Fan STOP
Auxiliary heater OFF
Compressor OFF
Fan STOP
Four-way valve OFF
MAIN OPERATION
w1 In addition, the centralized and remote control can be operated. w2 The modes which indicate the sources of trouble are listed below.
● EO=Signal transmitting/receiving error
● P1=Room temperature thermistor malfunction
● P2=Indoor coil thermistor malfanction
● P4=Drain sensor malfunction
● P5=Drain over flow
● P6=Coil frost/overheat protection
● P7=System error
● P8=Outdoor unit trouble
w3 The CHECK swich will show if an error has occurred in the past. w4 Fan runs on low speed for 1 minute in order to remove overheat air. w5 The 3-minute (6 minutes … heating mode) time-delay functions after compressor stops. w6 FAN or AUTO mode is selected by the indoor dipswitch setting. w7 In FAN mode, fan speed and vane operation depend on the remote controller setting. (Compressor is OFF.)
26
Page 27
COOLING OPERATION
COOL operation
Four-way valve/OFF
NO
NO
NO
NO
Vane setting notch
Initial
COOLING
w 8
w 9
YES
Vane intial
setting
Vane 60 deg downward angle 70 deg downward angle
YES
Fan speed
LOW
YES
Downward discharge
1 hour
YES
Vane horizontal
airflow
NO
Compressor
thermostat
ON
NO
Allowance
cancel
NO
YES
YES
NO
w 10
w 11
YES
3-minute
time delay
6-minute
time delay
3-minute
compressor opration
Coil frost
prevention
Cooling area
NO
NO
YES
NO
YES
NO
Aliowance
period
NO
6 minute time delay
Allowance set
YES
Coil frost protection
YES
10-minute
NO
compressor operation
Allowance cancel
NO
compressor operation
Compressor ON
YES
Coil frost
protection
NO
16-minute
YES
Indoor pipe
temperature is
34¡F or lower
NO
1
YES
YES
Coil frost
prevention
Compressor OFF
Indoor coil
tempreature is
50¡F or higher
YES
3-minute
time delay
Coil frost
prevention release
NO
NO
1 min continue
FAN speed
YES
LOW
FAN speed LOW 5 min
elapse
NO
YES
Outdoor unit
trouble
w8 When operation stops or changes to cooling or dry mode, the auto vane turns to a horizontal angle. IF opera-
tion changes during auto vane SWING, the auto vane will continue to swing.
w9 When operating TEST RUN, the thermostat will be continuously ON. w10After 3 minute compressor operation, if the indoor coil thermistor reads -59°F or below for 3 minutes, the com-
pressor will stop for 6 minutes.
w11Cooling area : Indoor coil temperature is more than 9 degrees above the room temperature.
Heating area : Indoor coil temperature is more than 9 degrees below the room temperature. FAN area : Indoor coil temperature is within 9 degrees either way of the room temperature.
27
Page 28
HEATING OPERATION
Heat operation
Intial
HEATING
YES
Vane intial setting
NO
Defrosting
NO
Four-way valve ON
Hor adjust in process
NO
Compressor ON
NO
Compressor
thermostat ON
Allowance cancel
Indoor piping
-5¡F or lower YES
Outdoor unit
trouble
FAN SPEED
Very low airflow
Compressor OFF
1
w 15
2
NO
Vane setting notch
w 9
NO
YES
YES
YES
YES
3 min.restart
prevention
YES
6 min. restart
prevention
NO
Hot adjust start
FAN SPEED very low
Compressor ON
NO
Allowance cancel
w 11
FAN STOP
w 11
20 min.elaspe
YES
w 11
Cooling area
Defrost operation
Four-way valve
10-minute
compressor
operation
YES
Heating
area
Ariflow area
Airflow area Heating area
NO
Airflow area
YES
START
OFF
w 10
w 11
YES
YES
NO
Heating area
NO
Defrost
30 min. elaspe
YES
Outdoor unit trouble
1
A
Outdoor unit
trouble
YES
Defrost release
NO
131¡F or lower
NO
Auxiliary heater
NO
140¡F or higher
YES
Auxiliary heater OFF
Overheat remote
NO
158¡F or higher
Allowance
Overload protect
2
B
Indoor piping
NO
ON
YES
Indoor piping
START
Indoor unit
YES
period
YES
YES
NO
Auxiliary heater ON
NO
6-minute restart
Allowance set
Compressor OFF
Auxiliary heater
thermostat ON
YES
prevention
YES
Indoor piping
95¡F or higher
NO
HOT adjust
6 min. elapse
YES
FAN SPEED
Low
FAN SPEED
Low 2 min.
elapse
YES
FAN SPEED
setting notch
Hot adjust
release
A
PKH-FK
Type
3-minute
Auxiliary heater
OFF
Indoor coil
thermstor is 60¡C
or higher
FAN speed
Low notti
YES
Airflow 10% up
B
NO
NO
NO
NO
NO
NO
FAN setting notch
Auto COOL/HEAT
operation
NO
w 17
NO
w 16
Initial mode
YES
NO
>
1 T0
T
=
YES
COOL mode HEAT mode
1 < (T0 - 2)
YES
After 15min.
T1<(T0-2)
NO
NO
YES
COOL mode
T
COOL operation HEAT operation
NO
1>(T0 + 2)
T
YES
After 15min.
T1>(T0 + 2)
HEAT operation
1 1
YES
NO
Cool mode
set
1
w15 (!) Until Low airflow is set while hot adjustment
(@) While defrosting (FAN STOP) (#) When thermostat is OFF In the case of(!), (@) and (#) above, airflow is horizontal regardless the VANE setting.
w16 When AUTO operation is started, COOL or HEAT mode is selected automatically. w17 T1 : Room temperature.
To : Set temperature
28
Page 29
DRY OPERATION
DRY
operation
Four-way valve / OFF
Vane
setting notch
NO
YES
NO
Initial dry
operation
YES
w 8
Vane intial setting
w 12
Room tempereature is
64°F or lower
NO
During
compressor ON
YES
3-minute
compressor
operation
YES
Compressor &
w 9
thermostat ON
YES
NO
NO
YES
3-minute
time delay
NO
Compressor &
thermostat
ON
NO
YES
w 9
Compressor ON
NO
time completes
YES
10-minute compressor
OFF timer start
Compressor OFF
w 14
Fan STOP
1
w8 ~ 9 Refer to page 35. w12 When room temperature is 4°F or below, the compressor cannot operate.
When room temperature rises over 64°F, the compressor starts after a 3-minute time delay.
w13 Compressor ON time is decided by room temperature. Refer to page 35. w14 In dry operation, compressor ON makes the fan speed LOW and compressor OFF stops the fan.
It is not possible to set the fan speed with the remote controller
10-minute
compressor
OFF
YES
Compressor ON
time set
Compressor ON
Fan speed LOW
NO
w 13
w 14
29
Page 30
8 MICROPROCESSOR CONTROL
MITSUBISHI ELECTRIC
-CENTRALLY CONTROLLED­ STAND BY DEFROST
ON
CHECK DRY
COOL
HEAT
CHECK
SET TEMP
TIMER OFF AUTO STOP AUTO START
F
HR
F
LOW HIGH
AUTO RETURN
CHECK TEST RUN
POWER
ON/OFF
HEAT
SET TEMPERATURE
AUTO COOL/DRY
COOLERWARMER
TIMER MODE HOURS
FAN SPEED LOW/HIOGH
AIR DISCHARGE
UP/DOWN
SWING
STOP
CHECK TEST RUN
1.OUTLINE OF MICROPROCESSOR CONTROL
INPUT to remote controller
● OFF-ON switching.
● COOL/DRY-AUTO-HEAT selector switching.
● Thermostat setting.
● TIMER mode selector-switching and Timer
setting.
● HIGH-LOW fan speed switching.
● AUTO Vane selector (AIR DISCHARGE)
switching.
● TEST RUN switching.
● CHECK mode switching.
(Self diagnostic trouble shooting)
Indoor unit
INPUT from indoor unit
Remote controller board
● Processes and transmits orders.orders.
12VDC
Indoor controller board
OUTPUT to remote controller
Remote controller
● LCD indicator
Non-polar, two-wire cable maxinmum length 500 meters
Signal
● Room temperature thermistor (RT1)
● Indoor coil thermistor (RT2)
OUTPUT to indoor unit
● Autovane’s angle setting.
● Booster heater ON-OFF Control.
● Emergency stop.
Independent Control of Outdoor Unit
● Compressor protection­device working
● Defrosting START-STOP
● Fan speed control.
● Crankcase heater control
ON-OFF.
30
● Self diagnostic function
● Receives orders from remote controller and tem-
perature data from indoor unit.
● Processes orders and data.
● Controls indoor and outdoor operation.
● Self diagnostic function.
w System control operation. w Emergency operation. w Set by dipswitch on indoor controller board.
● Transmits the power to remote controller.
1 2 3
Polar three-wire cable
Outdoor unit
OUTPUT to outdoor unit
12VDC
1 2 3
● Compressor and outdoor fan : ON­OFF
● Operation mode change :COOL­HEAT.
Page 31
2. INDOOR UNIT CONTROL
MITSUBISHI ELECTRIC
-CENTRALLY CONTROLLED­ STAND BY DEFROST
ON
CHECK DRY
COOL
HEAT
CHECK
SET TEMP
TIMER OFF AUTO STOP AUTO START
F
HR
F
LOW HIGH
AUTO RETURN
CHECK TEST RUN
POWER
ON/OFF
HEAT
SET TEMPERATURE
AUTO COOL/DRY
COOLERWARMER
TIMER MODE HOURS
FAN SPEED LOW/HIOGH
AIR DISCHARGE
UP/DOWN
SWING
STOP
CHECK TEST RUN
2-1 COOL operation
<COOL operation time chart>
Operation starts by POWER button ON.
ON
Thermostat
OFF
<How to operate>
1 Press POWER ON/OFF button. 2 Press COOL / DRY button to set operation mode to Cool.
NOTE :"Cool" and "DRY" are alternately displayed each time
COOL / DRY button is pressed.
3 To set desired temperature, press WARMER or COOLER
button.
NOTE :Set temperature changes by 2˚F in the range 66~86˚F,
each time WARMER or COOLER button is pressed.
The room temperature displayed on Remote controller becomes equal to set temperature.
The room temperature displayed on Remote controller rises above set temperature.
Operation stops by POWER button OFF.
LOW or HIGH
Indoor fan
ON
OFF
LOW or HIGH
Initally 10 degrees
(Changeable by remote controller setting)
Auto vane
Booster heater
CLOSE CLOSE
ON
OFF
OFF
ON
Compressor
OFF
Minimum 3 minutes 1
W
w1 Even if the room temperature displayed on remote controller rises above the set temperature during this period, the compressor will not start until this period
has ended.
31
Page 32
(1) Compressor control
5 minutes
SET
LOW
5 minutes
SET
LOW
OFF
1 3-minute time delay
To prevent overload, the compressor will not start within 3 minutes after stop.
2 The compressor runs when the room temperature displayed on remote controller is higher than set temperature.
The compressor stops when the room temperature displayed on remote controller is equal to or lower than the set tempera­ture.
3 The compressor stops in check mode or during protective functions. 4 Coil frost preventionTo prevent indoor coil frost, the compressor will stop when the indoor coil thermistor (RT2) reads 34°F
or below after the compressor has been continuously operated for at least 16 minutes or more. When the indoor coil tem­perature rises to 50°F or above, the compressor will start after a 3-minute time delay. NOTE : The start temperature of coil frost prevention changes 34°F to - 27°F. 5 Coil frost protection
When indoor coil temperature becomes 5°F or below, coil frost protection will proceed as follows.
<Start condition>
After the compressor has been continuously operated for 3 minutes or more,and the indoor coil temperature has been 5°F or below for 3 minutes,the coil frost protection will start.
<Coil frost protection>
Compressor stops for 6 minutes, and then restarts. If the start condition is satisfied again during the first 10 minutes of compressor operation, both the indoor and outdoor units stop, displaying a check code of “P8” on the remote controller.
<Termination conditions>
Coil frost protection is released when the start condition is not satisfied again during the allowance, or when the COOL mode stops or changes to another mode.
(2) Indoor fan control
Indoor fan speed LOW/HIGH depends on the remote controller setting. However, if an outdoor unit abnormality is detected, the indoor fan speed will be LOW, regardless of the remote controller setting.
When the outdoor unit abnormality detection is released and the fan speed returns to the set speed, the quiet cycle control will work. (a) Normal control
(i ) Fan speed LOW/HIGH depends on the remote controller setting regardless of the thermostat ON/OFF. (ii) Fan speed will remain on LOW if an abnormality in outdoor unit is detected. (5 minutes)
When the abnormality detection is released, the fan speed returns to the set speed.
1 Start-up of outdoor unit abnormality detec-
tion.
2 Release of outdoor unit abnormality detec-
tion.
3 Unit stop due to outdoor unit abnormality
with P8 indication.
NOTE 1 : Fan stops immediately if the unit stops or the check mode is started.
32
Page 33
(3) Auto vane control
Auto vane position is set to 10degrees discharge at the start-up of COOL operation. It can then be changed by the remote
controller.
(a) Stop mode (fixed operation) (
!) At start-up of COOL operation, the auto vane is set to 10 degrees discharge direction.
(@) Discharge direction can be changed with AIR DISCHARGE UP/DOWN botton.
1 Fan speed : LOW
10°
discharge
2 Fan speed : HIGH
10°
discharge
(b) SWING mode (!) The vane motor turns ON when the SWING mode is selected.
The vane motor is continuously ON during SWING mode.
(@) When SWING mode is changed to STOP mode, the discharge direction returns to the position of the last STOP mode.
<AUTO RETURN> 1 Fan speed : LOW
10°
discharge
30°
discharge
60°
discharge
60°
discharge
60°
discharge
70°
discharge
70°
discharge
70°
discharge
AUTO
RETURN
2 Fan speed : HIGH
10°
discharge
When 60 degrees or 70 degrees discharge is selected with the LOW fan speed in COOL operation, “Auto RETURN” will
appear below the temperature display. One hour later, the discharge direction returns to 10 degrees automatically and “AUTO RETURN” will disappear. If the discharge direction is set to 10 degrees during “AUTO RETURN” indication, the time counting for AUTO RETURN is cancelled.
30°
discharge
60°
discharge
AUTO
RETURN
70°
discharge
33
Page 34
<Auto vane drive> (a) The vane is driven by DC12V motor. (b) Air discharge direction is selected depends on the number of pulse were sended. (c) Before start driving the auto vane, detect the standard position first, output the number of pulse to each air discharge. (d) The speed of the auto vane drive for both open and close are setted at 200 pulse/sec. (e) Method of driving the auto vane.
1 Detecting the standard position:
Output 1600 pulse to the opening direction.
2 Position setting:Output the number of pulse indicated no below chart to the closing direction.
The number of pulse outputed after detecting the standard position
Close
Horizontal Downward A Downward B Downward C 113
(4) Detecting abnormalities in the outdoor unit
After the compressor has been continuously operated for 3 minutes, if the difference between the indoor coil temperature and room temperature is out of RANGE C for 1 minute, the indoor fan speed will turn to LOW. Five minutes later, if the dif­ference is still out of RANGE C,the outdoor unit is functioning abnormally. Thus, the compressor stops and check code “P8” appears on remote controler. RANGE A: Indoor coil temperature is more than 9 degrees above room temperature. RANGE B : Indoor coil temperature is within 5 degrees either way of room temperature. RANGE C : Indoor coil temperature is more than 9 degrees below room tempetature.
1600
680 578 283
Indoor coil temperature minus room temperature
(degree)
+9
0
-9
RANGE A
RANGE B
RANGE C
34
Page 35
Minimum 3 minutes 1
ON
30
Thermostat
Indoor fan
Auto vane
Booster heater
Compressor
ON
Initally 10 degrees discharge
(
Changeable by remote controller setting
)
LOW speedLOW speed
ON
ON
OFF
OFF
CLOSE
CLOSE
OFF
OFF
OFF
Operation starts by POWER button ON.
Operation stops by POWER button OFF.
30
The room temperature dislayed on remote con­troller becomes equal to set temperature.
The room temperature dislayed on remote con­troller rises above set temperature.
w
2-2 DRY operation
MITSUBISHI ELECTRIC
-CENTRALLY CONTROLLED­ STAND BY DEFROST
ON
CHECK DRY
COOL
HEAT
CHECK
SET TEMP
TIMER OFF AUTO STOP AUTO START
F
HR
F
LOW HIGH
AUTO RETURN
CHECK TEST RUN
POWER
ON/OFF
HEAT
SET TEMPERATURE
AUTO COOL/DRY
COOLERWARMER
TIMER MODE HOURS
FAN SPEED LOW/HIOGH
AIR DISCHARGE
UP/DOWN
SWING
STOP
CHECK TEST RUN
<DRY operation time chart>
<How to operate>
1 Press POWER ON/OFF button. 2 Press COOL / DRY button to set operation mode to DRY.
NOTE :"Cool" and "DRY" are alternately displayed each time
COOL / DRY button is pressed.
3 To set desired temperature, press WARMER or COOLER
button.
NOTE :Set temperature changes by 2˚F in the range 66~86˚F,
each time WARMER or COOLER button is pressed.
w1 Even if the room temperature dispayed on remote controller above the set temperature during this period, the compressor will not start until this period has ended.
(1) Compressor control
13-minute time delay
To prevent overload, the compressor will not start within 3 minutes after stop.
2The compressor runs when the room temperature displayed on remote controller
is higher than the set temperature. The compressor stops when the room temperature displayed on remote controller is equal to or lower than the set temperature.
3The compressor stops in check mode or during protective functions. 4The compressor will not start when the room temperature displayed on remote controller
is below 64°F. The compressor starts intermittent operation when the power is turned ON with room temperature above 64°F. The com­pressor ON/OFF time depends on the thermostat ON/OFF and the following room temperatures.After 3-minute compres­sor operation,
● If the room temperature thermistor reads above 82°F with thermostat ON, the compressor will operate for 6 more min­utes and then stop for 3 minutes.
● If the room temperature thermistor reads 79°F—82°F with thermostat ON, the compressor will operate for 4 more min­utes and then stop for 3 minutes.
● If the room temperature thermistor reads 75°F—79°F with thermostat ON, the compressor will operate for 2 more min­utes and then stop for 3 minutes.
● If the room temperature thermistor reads below 75°F with thermostat ON, the compressor will stop for 3 minutes.
● If the thermostat is OFF regardless of room temperature, the compressor will stop for 10 minutes.
5Coil frost protection in DRY operation is the same as in COOL operation. 6Coil frost prevention does not operate in DRY operation.
(2) Indoor fan control
The indoor fan runs on LOW speed during compressor operation. The fan speed cannot be changed with the remote con-
troller. Also, the indoor fan does not run during compressor OFF.
(3) Auto vane & drain pump controls
Same as in COOL operation
(4) Detecting abnormalities in the outdoor unit
An abnormality in the outdoor unit can not be detected in DRY operation.
35
Page 36
Minimum 3 minutes 2
ON
Thermostat
Indoor fan
Auto vane
Booster heater
Compressor
Power ON lamp
STAND BY lamp
ON
ON
LOW or HIGHLOW or HIGH
ON
OFF
OFF
OFF
OFF
ON OFF
ON OFF
ON OFF
Extra LOW 1Extra LOW 1
Hot adjustment
10¡ Close
10¡ Close
From POWER ON until
warm begins to blow
Hot adjustment
Depends on remote controller setting
Depends on remote controller setting
1 Changeable by indoor dipswitch J1 - 7 and J1 - 8.
OFF during thermostat OFF hot adjustment defrosting
LOW
Operation starts by POWER button ON.
Operation stops by POWER button OFF.
The room temperature displayed on remote con­troller becomes equal to set temperature.
The room temperature displayed on remote con­troller falls below set tem-
w
ww
w
2-3 HEAT operation
MITSUBISHI ELECTRIC
-CENTRALLY CONTROLLED­ STAND BY DEFROST
ON
CHECK DRY
COOL
HEAT
CHECK
SET TEMP
TIMER OFF AUTO STOP AUTO START
F
HR
F
LOW HIGH
AUTO RETURN
CHECK TEST RUN
POWER
ON/OFF
HEAT
SET TEMPERATURE
AUTO COOL/DRY
COOLERWARMER
TIMER MODE HOURS
FAN SPEED LOW/HIOGH
AIR DISCHARGE
UP/DOWN
SWING
STOP
CHECK TEST RUN
<HEAT operation time chart>
<How to operate>
1 Press POWER ON/OFF button. 2 Press HEAT button to set operation mode to HEAT. 3 To set desired temperature, press WARMER or COOLER
button.
<Display in HEAT operate>
"STAND BY" is displayed from HEAT operation start until warm air begins to blow. "DEFROST" is displayed during defrosting.
w2 Even if the room temperature displayed on remote controller rise above the set temperature during this period, the compressor will not start until this period has ended.
36
Page 37
(1) Compressor control
13-minute time delay
To prevent overload, the compressor will not start within 6, minutes after stop.
2The compressor runs when the the room temperature displayed on remote controller is lower than the set temperature.
The compressor stops when the the room temperature displayed on remote controller is equal to or higher than the set temperature.
3The compressor stops in check mode or during protective functions. 4Overheat protection
<Start condition>
When the indoor coil thermistor reads 158°F or above, the overheat protection will start.
<Overheat protection>
The compressor stops for 6 minutes, and then restarts. If the start condition is satisfied again within 10 minutes of compressor operation, both the indoor and outdoor units stop, displaying a check code of “P6” on the remote controller.
<Termination conditions>
Overheat protection is terminated when the start condition is not satisfied again during the allowance (10-minute compres­sor operation), when operation mode changes to other mode, or when thermostat turns OFF.
(2) Indoor fan control
(a) Nomal control
(!)The indoor fan runs on EXTRA-LOW speed during the thermostat OFF.
EXTRA-LOW speed can be changed to LOW or HIGH speed by setting the (J1-7, J1-8) If the indoor coil tempera­ture becomes more than 9 degrees below the room temperature during the thermostat OFF, the indoor fan will stop. After, when the indoor coil temperature becomes within 9 degrees of room temperature, the indoor fan will run on EXTRA-LOW speed.
(@)Hot adjustment Hot adjustment is a warm-up for HEAT operation
<Start conditions> The hot adjustment works under any of the follwing conditions.
● HEAT operation starts.
● Defrosting ends.
● Thermostat turns ON.[Hot adjustment]
Initially, the indoor fan runs on EXTRA-LOW speed. When 5 minutes have passed or the indoor coil temperature exceeds 95°F, the fan speed changes to LOW. Two minutes later, the hot adjustment ends. Then, the fan speed
depends on the remote controller setting. (#)The indoor fan stops when the indoor coil temperature is within 9 degrees either way of room temperature. ($)To eliminate the remaining heat, the indoor fan runs for the first 1 minute after the booster heater is turned OFF.
37
Page 38
(3) Auto vane control
(a) STOP mode (fixed operation)
(!) The discharge direction at the start-up of HEAT operation is the same as that of the previous operation. (@) The discharge direction can be charged by the remote controller setting.
10°
discharge
In the following cases, discharge direction becomes 10° regardless of the remote controller setting.
1 During the hot adjustment with fan speed at EXTRA-LOW 2 During defrosting with indoor fan OFF 3 During the thermostat OFF
(b) SWING mode
(!) The vane motor turns ON when the SWING mode is selected.
The vane motor is continuously ON during SWING mode.
(@) In the following cases, the discharge direction is 10° regardless of the remote controller setting.
1 During the hot adjustment with fan speed at EXTRA-LOW 2 During defrosting with indoor fan OFF 3 During thermostat OFF
(4) Booster heater control
When the room temperature is 5 degrees below the set temperature, the booster heater will turn ON. When the room temperature is equal to the set temperature, booster heater will turn OFF. During the hot adjustment, the booster heater will not work.
<Overheat prevention>
When the indoor coil thermistor rises to 140°F or above, the booster heater cannot work. When the indoor coil thermistor falls to 131°F or below, the booster heater can work.
(5) Detecting abnormalities in the outdoor unit
When the outdoor unit is determined to be abnormal by the following causes, the compressor will stop and the check code “ P8 ” will appear on the remote controller display.
1 During compressor ON after hot adjustment
1 If the difference between the indoor coil temperature and room temperature is in the RANGE B, the indoor fan will
stop. 2 Within 20 minutes after entering RANGE B (except for the first 10 seconds), a) If the temperature difference enters RANGE A, the hot adjustment stasrts, b) If the temperature difference is still in RANGE B, the outdoor unit is deemed abnormal. c) If the temperature difference enters RANGE C, defrosting starts.
Within 30 minutes after entering RANGE C,
●If the temperature difference does not return to RANGE B,the outdoor unit is deemed abnormal.
●If the temperature difference returns to RANGE B, the next 20 minutes is an allowance period. If the difference enter
RANGE Aduring the allowance, defrosting ends and the hot adjustment starts. If the difference does not enter RANGE Aduring the allowance, the outdoor unit is deemed abnormal.
2 During compressor ON in hot adjustment
After 30 minutes of defrosting in hot adjustment, if the temperature difference is still in RANGE C, the outdoor unit is determined to be abnormal.
3 During compressor OFF
After 20 minutes of thermostat OFF, if the indoor coil thermistor reads -13°F or below, the outdoor unit is determined to be abnormal.
30°
discharge
60°
discharge
70°
discharge
(only for New models)
(SWING)
(SW5-3:OFF/ON)
w1 (See the next page.)
38
Page 39
(6) Indoor coil thermistor abnormality detection
An abnormality can be detected during compressor ON, except for the following.
●For the first 30 minutes after the temperature difference between the indoor coil temperature and room temperature enters the RANGE C.
●When the temperature difference enters the RANGE C until it moves to the RANGE B.
(7) Defrosting operation
After the outdoor unit starts the defrosting operation, when the temperature difference between the indoor coil temperature and room temperature gets out of RANGE Aand into RANGE B, the indoor unit starts the defrosting mode. After the out­door unit stops the defrosting operation, when the temperature difference returns to the RANGE A, the indoor unit stops the defrosting mode. While the indoor unit is in the defrosting mode, the indoor fan and the booster heater stop.
w1 RANGE A: Indoor coil temperature is more than 9 degrees above room temperataure.
RANGE B : Indoor coil temperature is within 9 degrees either way of room temperature. RANGE C : Indoor coil temperature is more than 9 below room temperature
Indoor coil temperature minus room temperature
(degree)
+9
-9
RANGE A
0
RANGE B
RANGE C
39
Page 40
Mode change (HEAT COOL)
When the room temperature displayed remote controller becomes2degrees above the set temperature, the operation mode can not be changed for 15 minutes.
(degree)
To+4
To:Set temperature (19 28 )
To+2 To To-2
To-4
Compressor
Start
HEAT mode HEAT mode
Mode change
15 minutes
Mininum 3 minutes
15 minutes
Mininum 3 minutes
COOL mode
(COOL HEAT)
ON OFF
-15.8 32 50 68 86 104 115¡F
-17¡F
Cooling range
(Outside air temperature)
Heating range
10¡F
2-4 AUTO operation (Automatic COOL/HEAT change over operation)
MITSUBISHI ELECTRIC
-CENTRALLY CONTROLLED­ STAND BY DEFROST
ON
CHECK DRY
COOL
HEAT
CHECK
SET TEMP
TIMER OFF AUTO STOP AUTO START
F
HR
F
LOW HIGH
AUTO RETURN
CHECK TEST RUN
POWER
ON/OFF
HEAT
SET TEMPERATURE
AUTO COOL/DRY
COOLERWARMER
TIMER MODE HOURS
FAN SPEED LOW/HIOGH
AIR DISCHARGE
UP/DOWN
SWING
STOP
CHECK TEST RUN
<How to operate>
1 Press POWER ON/OFF button. 2 Press AUTO button to set operation mode to AUTO. 3 To set desired temperature, press WARMER or COOLER
button.
NOTE :Set temperature changes by 2˚F in the range 66~86˚F,
each time WARMER or COOLER button is pressed. Once the desired temperature is set, operation mode is switched automatically between COOL and HEAT according to room temperature.
(1) Initial mode
1 When AUTO operation starts after unit OFF.
● If the room temperature displayed on remote controller is higher than the set temperature, operation starts in COOL mode.
● If the room temperature displayed on remote controller is equal to or lower than the set temperature, operation starts HEAT mode.
2 When AUTO operation starts after COOL or HEAT operation, the previous mode continues.
(2)Mode change
1 HEAT mode changes to cool mode when 15 minutes have passed since the room temperature became 2 degrees
above the set temperature.
2 COOL mode changes to HEAT mode when 15 minutes have passed since the room temperature became 2 degrees
below the set temperature.
(3)Temperature range
AUTO operation is available under the outside air temperatures as follows.
40
Page 41
discharge
1
downward discharge
2
downward discharge
3
downward discharge
4
2-5 Auto vane control
MITSUBISHI ELECTRIC
-CENTRALLY CONTROLLED­ STAND BY DEFROST
ON
CHECK DRY
COOL
HEAT
CHECK
SET TEMP
TIMER OFF AUTO STOP AUTO START
F
HR
F
LOW HIGH
AUTO RETURN
CHECK TEST RUN
POWER
ON/OFF
HEAT
SET TEMPERATURE
AUTO COOL/DRY
COOLERWARMER
TIMER MODE HOURS
FAN SPEED LOW/HIOGH
AIR DISCHARGE
UP/DOWN
SWING
STOP
CHECK TEST RUN
<How to operate>
To change the air flow direction, press AIR DISCHARGE UP/DOWN button.
<Remote controller display>
1
10°
2
30°
3
60°
4
70°
Available in COOL operation with fan speed on HIGH or in HEAT operation. Unavailable in DRY operation. If fan speed changes from LOW to HIGH during 30° downward discharge in COOL mode, the direction auto­matically changes to 10°.
Changes by pressing the AIR DISCHARGE UP/DOWN button.
(1) COOL/DRY operation
(2) HEAT operation
At the start-up of COOL or DRY operation, the discharge direction in automatically set to 10°. After, it can be changed to
another direction with AIR DISCHARGE UP/DOWN button on the remote controller.
<Auto return>
When 60° or 70° discharge is set with fan speed on LOW, “AUTO RETURN” appears below the room temperature display.
One hour later the direction changes to 10° degrees, automatically and “AUTO RETURN” disappears.
At the start-up of HEAT operation, discharge direction depends on the setting of the last operation. After, it can be changed to another direction with AIR DISCHARGE UP/DOWN button. The discharge direction shifts to 10°
regardless of the remote controller settings under any of the following conditions.
● Thermostat OFF
● Defrosting
● Indoor fan speed EXTRA-LOW in hot adjustment
41
Page 42
2-6 TIMER operation
-CENTRALLY CONTROLLED­ STAND BY
ON
DEFROST
CHECK DRY
HEAT
COOL
CHECK
F
SET TEMP
TIMER OFF AUTO STOP
HR
AUTO START
LOW HIGH
F
AUTO RETURN
CHECK TEST RUN
<Timer setting example>
POWER AUTO COOL/DRY
HEAT
SET TEMPERATURE
TIMER MODE HOURS
FAN SPEED LOW/HIOGH
AIR
UP/DOWN
DISCHARGE
CHECK TEST RUN
MITSUBISHI ELECTRIC
ON/OFF
COOLERWARMER
SWING
STOP
<Timer function>
AUTO STOP ·········The air conditioner stops after the set time lapses. AUTO START ········The air conditioner starts after the set time lapses. AUTO OFF ············Timer is not active.
<How to operate>
1. Press POWER ON/OFF button.
2. Press TIMER HOURS button to select AUTO STOP or AUTO START.
3. Press TIMER HOURS button to set desired time. Time setting is in 1 hour units for up to 24 hours. Each time HOURS button is pressed, set time increases by 1 hour. When HOURS button is pressed and held, the set time increases by 1 hour every 0.5 seconds.
4. To cancel the timer operation, press POWER ON / OFF button.
AUTO STOP
8
HR
This setting will stop the air conditioner in 8 hours. With the lapes of time, time display changes in 1 hour units, showing remaining time.
2-7 Test run <Before test run>
● After installing, wiring, and piping the indoor and outdoor units, check for refrigerant leakage, looseness in power supply or control wiring, and mistaken polarity.
● Use a 500-volt megger to check the resistance between the power supply teminal block and ground to make sure that it is at least 1.0MΩ.
Attention: Do not use the air conditioner if resistance is less than 1.0MΩ.
<How to operate>
-CENTRALLY CONTROLLED­ STAND BY
ON
DEFROST
CHECK DRY
HEAT
COOL
CHECK
F
SET TEMP
TIMER OFF AUTO STOP
HR
AUTO START
LOW HIGH
F
AUTO RETURN
CHECK TEST RUN
POWER AUTO COOL/DRY
HEAT
SET TEMPERATURE
TIMER MODE HOURS
FAN SPEED LOW/HIOGH
AIR
UP/DOWN
DISCHARGE
CHECK TEST RUN
MITSUBISHI ELECTRIC
ON/OFF
COOLERWARMER
SWING
STOP
1. Turn ON main breaker.
2. Press TEST RUN button twice. “TEST RUN” is displayed on remote controller.
3. Press COOL / DRY button to check that cool air is being discharged.
4. Press AIR DISCHARGE UP / DOWN button to check auto vane operation.
5. Check outdoor fan operation.
6. Check compressor operation referring to the indoor coil temperature code displayed on the remote controller. (See next page.)
7. The test run works for 2 hours and stops automatically. To cancel the test run, press POWER ON / OFF button or
TEST RUN button
TIMER MODE button.
8. After checking, turn OFF the main breaker.
Displayed during test run
Indoor coil temperaure code Display
42
Page 43
(1) Indoor coil temperature code
Code 1
~40~34¡F
9
~113¡F
2
~50¡F
10
~122¡F
3
~59¡F
11
~131¡F
4
~68¡F
12
~140¡F
5
~77¡F
13
~158¡F
6
~86¡F
14
7
~95¡F
15
Thermistor abnormality
8
104¡F
Indoor coil temperature
Code
Indoor coil temperature
1 ON
1
2
1.2 ON
1
2
1-2 OFF
1
2
During the test run, the indoor coil temperature code from 1 to 15 is displayed on the remote controller instead of room temperature. The code should fall with the lapse of time in normal COOL operation, and should rise in normal HEAT operation.
(2) Trouble during test run
● If the unit malfunctions during the test run, refer to section 10 in this manual entitled “TROUBLESHOOTING.”
● When the optional program timer is connected to the conditioner, refer to its operating instructions.
2-8 Emergency operation
When the remote controller or microprocessor malfunctions but all other parts are normal, emergency operation is started by setting the dipswitch SW3 on the indoor controller board.
<Before emergency operation>
1. Make sure the compressor and the indoor fan are operating normally.
2. Locate the defect with the self-diagnostic function. When the self-diagnostic function indicates “protective function is working”, release the protective function before starting the emergency operation. CAUTION: When the self-diagnostic function indicates a check code of “P5” (drain pump malfunction), DO NOT start
the emergency operation because the drain may overflow.
<How to operate>
1. For emergency cooling, set the dipswitch SW3-1 to ON and SW3-2 to OFF. For emergency heating, set the dipswitch SW3-1,2 to ON.
Emergency cooling
Emergency heating
Nomal operation
Microcessor board
2. Turn ON the outdoor unit breaker and then turn ON the indoor unit breaker.
Emergency operation will now start.
3. During emergency operation, the indoor fan operates on high speed, but the swing louvers and the auto vanes do not operate.
4. To stop emergency operation, turn OFF the indoor unit breaker. NOTE: The remote controller POWER ON/OFF button can not start/stop emergency operations. CAUTION: Do not use emergency cooling for more than 10 hours, as the indoor coil may freeze.
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2-9 Interlock with ventilation system (LOSSNAY)
Relay box
Relay box (PZ-12RB-E)
LOSSNAY
LOSSNAY
LOSSNAY control switch (PZ-05SLB2-E) LOSSNAY control switch
(PZ-05SLB
2-E)
Mr. SLIM
Mr. SLIM
Remote controller
Remote controller
Remote display adapter (PAC-SA88HA-E)
Power supply
Power supply
Relay box
LOSSNAY
A B L N HIGH N
Terminal block
Terminal block
Mr.SLIM CN51 12V DC
Power supply 220 240V AC
Circuit breaker
WHT
WHT
N
DAMPER
DAMPER
RED
LOW
HIGH
ORN
ORN
RED
(PZ-12RB-E)
L
N
Mr. SLIM/LOSSNAY interlock operation is available by using the optional parts listed below.
(1) System organization
(2) Required parts are:
● Relay box (PZ-12RB-E) ••• Contact capacity 10A
● Remote display adapter (PAC-SA88HA-E)…An optional part for Mr. SLIM
● LOSSNAY control switch (PZ-05SLB-2-E)…For LOSSNAY individual operation
(3) Operation
1LOSSNAY turns ON/OFF according to Mr. SLIM ON/OFF 2While Mr. SLIM is OFF, LOSSNAY individual operation is available by using the LOSSNAY control switch.
When Mr. SLIM turns OFF with the LOSSNAY control switch at ON, LOSSNAY will continue to operate.
(4) Wiring.
Remote controller
Insulation is needed
10m
Connecting wire
2
0.13mm or over Connecting wire
solid wire,
1.6 or 2.0 (field supplied)
Circuit breaker (field supplied)
L
Power supply
N
50Hz 220 240V
PL
HIGH
N
LOSSNAY control switch (PZ-05SLB
Indoor controller
N L
LOW
DAMPER
2-E)
Mr. SLIM
board
Connector
CN51
ORN
RED
BRN
GRN
YLW
Junction box (field supplied)
Power supply for Mr. SLIM 220 240V AC
Relay box
(PZ-12RB-E)
YLW
A
ORN
B
RED
L
WHT
N
RED
HIGH
N
WHT
LOSSNAY
Terminal block
ORN
LOW
RED
HIGH
WHT
N
RED
DAMPER
ORN
DAMPER
WHT
2When the LOSSNAY control switch is not used:1When the LOSSNAY control switch is used:
8
7
4
6 2
5
3
1
NOTE: For further information, refer to the
LOSSNAY technical & service manual.
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2-10 Dip switch and jumper connector functions
Each figure shows the initial factory setting.
1 On remote controller board
(1) SW17(Address selector)
1 2 3 4 5 6 7 8 9 ON OFF
SW17-1 ~ 6) For address setting SW17-7) When two remote controllers are used, this switch sets the controller function.
OFF: The remote controller is set as a main controller. ON: The remote controller is set as a sub controller.
SW17-8) Switch for system back-up
OFF: Without back-up ON: With back-up
SW17-9) Switch for temperature unit
OFF: °C ( Celsius) ON: °F (Fahrenheit)
SW17-0) Switch for louvers
OFF: Unit with louvers ON: Unit without louvers
3. On indoor controller boaed
(1) J1 (Mode selector)
0
1 4 5 6 7 8 9
J1-1) Switch that changes between FAN mode and AUTO mode.
Provided: Fan mode for models without heat pump. Not provided: AUTO mode for models without heat pump.
J1-4) Switch for drain pump
Provided: The drain pump works in only COOL operation Not provided: The drain pump works in both COOL and HEAT operation
J1-5) Switch to change the temperature to start coil frost prevention
Provided : 34°F (For all current models) Not provided: -27°F (For previous special models)
J1-6) Switch for set temperature adjustment in HEAT mode
During HEAT operation, warm air collects near the ceiling. When the indoor unit is installed near the ceiling, the temperature read by room temperature thermistor differs from the actual living-space temperature by about 7 degrees. Therfore, the room temperature read by room temperature thermistor must be lowered by 4 degrees. Provided : 7-degree adjustment Not provided : No adjustment
10
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J1-7) Switch for fan speed during thermostat OFF in HEAT operation
J1-8) Switch for fan speed during thermostat OFF in HEAT operation.
J1-9) Switch for detecting abnormalities in the outdoor unit abnormality detection.
J1-10) Switch for auto restart function
Provided : EXTRA LOW Not provided : LOW
Provided : EXTRA LOW or LOW (set with J1-7) Not provided : Low or HIGH (set with remote controller)
Provided : When an abnormality occurs, it is detected. Not provided : Even if an abnormality occurs, it can not be detected.
Previded : This function does not work Not provided : This function works.
(2) SW2 (Address selector)
1 2 3 4 5 6 ON OFF
(3) SW3 (Emergency operation switch)
Nomal operation For emergency cooling For emergency heating
1 2 ON OFF
(4) J5 (Model selector)
2 4
J5-2) Prouided :For models with heat pump.
Not Previded :For models without heat pump.
J5-4) This jumper is unavailable for PKH-FK
(5) SW7
1 2 3 4 ON OFF
SW7-1) OFF:PKH18/24FK
ON :PKH30/36FK
SW7-2) POWER SUPPLY
2.11 INDOOR FAN CONTROL
Indoor fan relay output. (a) During fan ON
The indoor fan relay turns ON. One second later, the phase control will start.
(b) During fan OFF
The phase control turns OFF. One second later, the indoor fan relay will turn OFF.
Used in setting the unit-address for group control. For further information, refer to page 57.
ON OFF
1 2
OFF: 208V ON : 230V
)(
1 2
ON
OFF
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3. OUTDOOR UNIT CONTROL
10 minutes 1
ON
Thermostat
Outdoor fan
4-way valve (cool)
4-way valve (HEAT)
Bypass valve
Compressor
Crankcase heater (with jumper wire J3)
Crankcase heater (without jumper wire J3)
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
ON OFF
ON OFF
ON
OFF
60 minutes 60 minutes 60 minutes 60 minutes 60 minutes
3 minutes
10 minutes
3 minutes
Repeats 60-minute ON/OFF
60 minutes
60 minutes
Operation starts by POWER button ON.
Operation stops by POWER button OFF.
The room temperature dis­played on remote controller becomes equal to set tem­perature.
The room temperature dis­played on remote controller becomes different from set temperature.
3-1 Outdoor fan control
The rotational frequency of outdoor fan is phase-controlled according to the outdoor coil temperature. This control allows the cooling operation even with the low outside-air temperature and the heating operation even with the high outside-air tempera­ture.
3-2 Outdoor unit control
The outdoor unit turns ON/OFF the cooling/heating operation according to orders given from the indoor unit.
3-3 Protective functions
1 If an reversed-phase, an open phase, or an indoor controller abnormality is detected, the outdoor unit will stop operation and
the check mode will start. (For the check mode details, see page 48.)
2 If a protective function works, the compressor will stop running. Three minutes later, the compressor will restart. If the protec-
tive function works again, the compressor will stop running and the check mode will start.
3 The protective function is memorized. 4 The memory is cleared when the POWER ON/OFF button on the remote controller is turned OFF. However, the check mode
display continues until the outdoor unit receives the “operation ON” command from the indoor unit.
3-4 COOL/HEAT operation time chart
w1 If compressor restarts within 10 minuteas, 4-way valve remains ON.
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ON
Outdoor fan
Compressor
4-way valve
Bypass valve
Auto vane
Indoor fan
35degrees(SW5-3 OFF)or 20degrees(SW5-3:ON)discharge direction
(Remote controller still displays set direction.)
Outdoor unit
Indoor unit
ON
Set direction
ON
OFF
OFF
OFF
ON
OFF
ON
OFF
ON OFF
Set direction
Defrosting starts.
Defrosting stops.
3-5 Defrosting in HEAT mode <Defrosting time chart>
(1) Start conditions
A. When all of the following conditions are satisfied, defrosting will start. However, when the bypass valve turns OFF,
defrosting starts 10 minutes later. (a) More than seven minutes have passed since the compressor start-up. (b) The outdoor coil thermistor reads 23˚F or below. (c) The outdoor fan motor output step is 100% (d) Total time of compressor operation exceeds 30 minutes, and the outdoor coil temperature has fallen by 14 degrees
or more in comparison with that of 10 minutes after the compressor start-up.
NOTE: The outdoor coil temperature 10 minutes after the compressor start-up is memorized until the defrosting
operation has ended.
B. When all of the following conditions are satisfied, defrosting will start.
(a) ~ (c) The same as above (a) ~ (c) in item A (d) Total time of compressor operation exceeds “defrost interval”.
Further information on the defrost interval is described in (3).
C. After the total time of compressor operation exceeds the defrost interval, the thermostat repeats ON/OFF three times.
Two minutes after the fourth “ON” of the thermostat, if the outdoor coil thermistor reads 23˚F or below and the fan out­put output is 100%, defrosting will start.
NOTE: The count of the thermostat ON/OFF is cleared by the compressor-OFF command or defrosting start-up.
(2) During defrosting
● Even if the thermostat turns OFF, defrosting continues.
● The 4-way valve, bypass valve, outdoor fan, and indoor fan are OFF.
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(3) Defrost interval
The defrost interval time is determined as follows.
● Initial defrost interval is 50 minutes.
● The defrost interval after defrosting depends on the preceding defrosting time as shown below.
Defrosting operation time Next defrost interval 3 minutes or below 120 minutes 3 to 7 minutes 80 minutes 7 to 10 minutes 60 minutes 10 to 15 minutes 40 minutes 15 minutes (Maximum) 30 minutes
NOTE1:If the unit stops during defrosting , the next defrost interval will be 50 minutes. NOTE2:If a protection function works for the first time during defrosting, the compressor will stop.
After a 3-minute time delay, defrosting will restart. In this case, a 3-minute time delay is included with the defrosting time. If the protection function works for the second time, the unit stops operation and displays the check code. The next defrost interval will be 30 mimutes.
NOTE3:When the defrosting has ended, the total time of the compressor operation is cleard.
(4) Termination conditions
Defrosting finishes when any of the following conditions are satisfied.
1Defrosting has continued for 15 munites. 2Outdoor coil thermistor reads 72˚F or above for the first 75 seconds after defrosting start-up. 3Outdoor coil thermistor reads 46˚F or above after the 75-second defrosting. 4Power ON/OFF button is turned OFF during defrosting.
3-6 Actuators (1) Bypass valve control
<Cooling mode> 1When the unit stops due to the coil frost prevention, the bypass valve turns ON. When one hour has passed since the
compressor stopped, the bypass valve returns to OFF.
2When the compressor operates with the bypass valve at ON for more than 30 minutes, the bypass valve turns OFF. 3When the compressor stops with the bypass valve at OFF, the bypass valve turns ON and remains ON for three min-
utes.
<Heating mode> 1When the unit starts for the first time after the circuit breaker has been turned ON, or when it starts after the compressor
OFF of 30 minutes or more, if the outdoor coil thermistor reads 54˚F or more, the bypass valve turns ON.
2When the high pressure switch (63H1) works, the bypass valve turns ON. 3When the bypass has been ON for 30 minutes:
● If the high pressure switch has already returned, the bypass valve turns to OFF.
● If not, the fan output step keeps 70 for three minutes. Meanwhile, if the high pressure switch returns, the bypass valve
turns OFF. Otherwise the normal fan control starts.
4When the operation mode changes or stops, the bypass valve turns ON and remains ON for three minutes. <Defrosting operation>
1The bypass valve is OFF.
(2) Crankcase heater control
1With jumper wire J3
The crankcase heater is ON from when the power is turned ON until the compressor starts, and then turns ON one hour after the compressor stops.
2Without jumper wire J3
The crankcase heater is ON from when the power is turned ON until the compressor starts, and repeats 1-hour ON and 1-hour OFF.
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3-7 Service functions (1) Compulsory defrositng
1When all of the following conditions are satisfied, pressing SW2 starts the compulsory defrosting.
● During HEAT mode
● The compressor is ON.
● The outdoor coil temperature is being displayed by LED. (Outdoor controller board dip switch SW3-1 : OFF, SW3-2 :
ON)
● The outdoor coil thermistor reads 46°F or below.
2The operation state and the termination conditions of the compulsory defrosting are the same as those of the normal
defrosting. As an exception, the defrost interval after the defrosting completion is 50 minutes.
(2) Fixed fan-output
While the compressor is operating (exept during defrosting) and the fan output step is indicated by LED, pressing SW2 fixes the fan output. The fixed fan-output can be released when any of the following conditions are satisfied.
1SW2 is pressed again. 2SW3 setting is changed. 3The compressor stops. 4Defrosting operation starts.
(3) Function of switches on the outdoor controller board
SW1: Clears the check code memory (push-button switch) SW2: Switches the output state indication and the check code display (push-button switch) SW3-1,2: Switches the output state indication items (dip swtich) For further information, refer to page 50.
(4) 100% fan output
Fan output is fixed to 100% by shorting the connector CN22. However, the fan stops during compressor OFF or defrosting. Open-circuit of CN22 restarts the normal fan control.
(5) Time shorterning
Short circuit of the connector CN21 shortens the time as follows
1Fan control period: 30 seconds → 3 seconds 2Three-minutes time delay function : 3 minites → 3 seconds 3Max. time of defrosting : 15 minites → 15 seconds 4Defrost interval : 30 ~ 120 minutes → 3 ~ 12 seconds 5Compressor ON/OFF time for bypass valve ON/OFF : 30 minutes → 3 seconds 6Compressor ON time to start other functions : x minutes → x seconds 7Crankcase heater operation : 1 hour → 6 seconds
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9
TROUBLESHOOTING
1.TROUBLE IN TEST RUN
Symptom Cause Check points
The display “CENTRALLY CONTROLLED” on remote controller does not disap­pear.
When remote controller POWER button is turned ON, the check code “EO”appears.
1) Wrong address setting of remote con­troller/indoor controller board.
2) Timer adapter is connected to the remote controller.
3) Signal transmission error between indoor unit and remote controller.
1) Signal transmission error between indoor unit and remote controller
1) Check the address setting of remote controller and indoor controller.
2) Make sure the timer adapter is used correctly.
3) 1 Turn another remote controller’s DIP SW17-
7 ON to make it sub controller.
2 Connect the sub controller to the unit, and
turn circuit breaker ON.
● If the display “centrally controlled” disap­pears, replace the original remote controller.
● If the display remains the same, replace the indoor controller board.
1) 1 Connect a sub remote controller. 2 Turn circuit breaker ON.
If the display “centrally controlled” remains, replace the indoor controller board.
3 If the display disappears, turn the remote
controller POWER button ON and check as follows.
Remote controller
1
Operating Display
2
Operating Display
3
NO Display
4
NO Display
Sub remote controller EO Display
Operating Display
EO Display
Operating Display
Malfunction of indoor Unit
Malfunction of Remote controller
Malfunction of indoor Unit and Remote Controller
Malfunction of Remote controller
Malfunction
When remote controller POWER button is turned ON, operating display appears, but disappears soon.
Despite turning POWER button ON, the remote controller display does not appear.
1) Short circuit of indoor/outdoor connect­ing wire
2) Short circuit of transmission wire.
3) Short circuit of drain sensor heater cir­cuit.
4) Wrong operation of remote controller due to noise wave emitted by other appliances.
1) Damaged remote controller.
2) Short circuit of transmission wire.
3) Bad contact of indoor CN40.
4) CN40 is attached to a sub unit.
5) Damaged transformer.
6) Bad contact of CN4T.
7) Blown fuse.
8) Circuit breaker OFF.
1), 2) Check the wire
3) Measure the resistance of the drain sensor connector CN50 1 - 3. Normal resistance should be 82Ω.
4) Turn the circuit breaker OFF, and then turn ON.
If the remote controller remains abnormal, despite the above measures, replace the indoor controller board.
1) Measure the voltage between terminals of remote controller. If no voltage, remove the wire from the terminals and measure the volt­age between wires. If the voltage is between 6VDC and 12V, replace the remote controller.
2) ~ 8) Check each point.
If it is not defective, replace the indoor controller board.
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2. SELF DIAGNOSTIC FUNCTION WITH REMOTE CONTROLLER
MITSUBISHI ELECTRIC
-CENTRALLY CONTROLLED­ STAND BY DEFROST
ON
CHECK DRY
COOL
HEAT
CHECK
SET TEMP
TIMER OFF AUTO STOP AUTO START
F
HR
F
LOW HIGH
AUTO RETURN
CHECK TEST RUN
POWER
ON/OFF
HEAT
SET TEMPERATURE
AUTO COOL/DRY
COOLERWARMER
TIMER MODE HOURS
FAN SPEED LOW/HIOGH
AIR DISCHARGE
UP/DOWN
SWING
STOP
CHECK TEST RUN
2-1 When malfunction occurs during operation
When a malfunction occurs, the indoor and outdoor units stop and the malfunction is displayed on the LCD of the remote controller. (A) ON the set temperature display part, “CHECK” appears, and
the unit address and the check code are displayed alternately
at one-second intervals. (Check mode)
Example
CHECK
0
°F
Alternately
displayed
CHECK
p1
CHECK mode
°F
(2) When one remote controller controls several units in the group control,
the LCD shows the unit address and check code of the first malfunc­tioning unit.
(3) To cancel the check mode, press the POWER button. In
ON/OFF
remote ON/OFF control, press the remote ON/OFF switch. In central­ized control, turn OFF the POWER ON/OFF button of centralized con­troller.
CHECK button
NOTE: The latest check code is memorized, even if the check mode is cancelled by the way mentioned above. It takes
60 seconds maximum to display the memorized check code.
2-2 How to use the self diagnostic function for service A. For normal control with one unit and one remote controller
(1) Pressing the CHECK button on the remote controller twice starts the self diagnostic function. (2) During the self diagnostic function, “CHECK” appears at two positions on the remote controller display. Then, at least
10 seconds later, the unit address and the check code is alternately displayed at one-second intervals.
(3) Check and repair the unit according to the check code. (Refer to the next page.)
2-3 For group control using one remote controller
(1) Press the WARMER or COOLER button on the remote controller to advance or go back to the unit address. Each time
WARMER button is pressed, the unit address advances by one. Each time COOLER button is pressed, the unit address goes back by one. The check code and the unit address, appear alternately.
(2) The check code “U8” means no malfunction has occurred since installation.
The check code “EO” means the following conditions:
● The unit address displayed on the remote controller does not apply to any unit.
● power is not supplied to the unit.
● Signal transmitting / receiving circuit is abnormal.
(3) Check and repair the unit according to the check code. (Refer to the next page.)
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Check
code
EO
Diagnosis of malfunction Cause Check points
Signal transmitting/receiving error (Indoor controller does not respond to remote controller signal.)
During individual unit control
1) Bad contact of transmission wire
2) Signal transmitting/receiving cir­cuit is abnormal.
1) Check the transmission wire.
2) Check with another remote controller. If “EO” is still indicated, replace the indoor controller board. If other check code appears. replace the origi­nal remote controller.
Abnormality of room temper-
P1
ature thermistor (RT1)
Abnormality of indoor coil
P2
thermistor (RT2)
Signal transmission error
P3
(Remote controller does not respond to indoor controller signal.)
Abnormality of drain sensor 1) Bad contact of transmission
P4
1) Bad contact of thermistor
2) Damaged thermistor
1) Bad contact of transmission wire
2) Signal transmitting/receiving cir­cuit is abnormal.
3) Wrong operation due to noise wave emitted by other appli­ances
wire
2) Damaged thermistor
1) Check the thermistor.
2) Measure the resistance of the thermistor. Normal resistance should be as follows. 32˚F ····15kΩ 86˚F···4.3kΩ 50˚F ······9.6kΩ 104˚F···3.0kΩ 68˚F ······6.3kΩ If the resistance is normal, replace the indoor controller board.
1) Check the transmission wire.
2) Check with another remote controller. If “P3” is still indicated, replace the indoor board. If other check code appears, replace the origi­nal remote controller.
3) Short-circuit between 1 and 2 of CN40 and attach CN40 to the following units.
● Second unit in twin control
● Second and third units in triple control
● Sub units in group control
1) Check the connector.
2) Measure the resistance of the thermistor 4 - 5. As for the normal resistance, refer to the case of P1.
If the resistance is normal, replace the indoor con­troller board.
Malfunction of drain pump 1) Malfunction of drain pump
P5
Coil frost protection is work-
P6
ing.
P7
System error
Abnormality in outdoor unit 1) Wrong wiring of indoor/outdoor
P8
2) Damaged drain sensor
1) Short cycle of air cycle
2) Dirty air filter
3) Damaged fan
4) Abnormal refrigerant
1) Wrong address-setting
2) Signal transmitting/receiving cir­cuit of remote controller is abnormal.
3) Wrong SW6-setting
connecting wire
2) Reversed phase
3) Protection device is working
4) Damaged outdoor coil thermis­tor
1) Check the drain pump.
2) ● Check the drain sensor.
● Check the drain sensor heater. Normal resis­tance should be 82Ω.
If the resistance is normal, replace the indoor con­troller board.
1) Clear obstructions from the air cycle.
2) Clean the air filter
3) Check the fan.
4) Check the refrigerant temperature and pres­sure.
1) Check the address-setting.
2) Check with another remote controller. If check code other than “P7” appears, replace the origi­nal remote controller.
3) Check SW6 setting.
1) Check the indoor/outdoor connecting wire.
2) Change the connection of electric wiring.
3) Check the protection device.
4) Measure the resistance of the outdoor coil ther­mistor. If the resistance is normal, replace the outdoor controller board.
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3.SERVICE DATA INDICATION BY SWITCHES ON OUTDOOR CONTROLLER BOARD
SW3-1 SW3-2
OFF OFF
Check code Output state
Outdoor coil temperature
(
bit
)
Fan output
step
(
bit
)
Total time of
compressor
operation(Hr
)
OFF OFF
OFF
ON
ON
OFF
ON ON
LED
LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8
Blinking Reversed phase Open phase
63H2 function 51C function 26C function Overheat protection
During 63H1 function Compressor ON Outdoor fan ON 4-way valve ON Bypass valve ON Crankcase heater ON
Lighting
1 2 4
8 16 32 64
128
1 2 4
8 16 32 64
128
256
512 1024 2048 4096 8192
16384 32768
Outdoor coil thermistor is abnomal.
Heating operation command from indoor controller
Compressor ON command from indoor controller
Input circuit on controller board is abnormal
Setting dip switchs SW2 and SW3 on the outdoor controller board enables LED to show the output state and check code. Output state is shown by LED lighting, and check code by blinking.
SW1 : Turning SW1 ON clears the check code. If SW1 is turned ON while the check code is blinking , the indication
changes to output state indication. NOTE : SW1 is usually available independant of SW3 setting. As an exception, when the check code shows a
reversed phase or an open phase during the power-on-reset state, SW1 is not available.
SW2 : SW2 is turned ON by pressing, and OFF by releasing.
When SW3-1 and SW3-2 are OFF, pressing SW2 changes indication between output state and check code alternate­ly. When SW2 is turned On with SW3-1 OFF and SW3-2 ON, the compulsory defrosting starts.
SW3 : Output state indication items depend on the combination of SW3-1 ON/OFF and SW3-2 ON/OFF.
Changed alternately by pressing SW2.
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3-1 Outdoor coil temperature
50
Fan output step (bit)
Fan rotational frequency (rpm)
100 150 200 250
800
600
400
200
0
50
Fan output step (bit)
Type
Fan rotational frequency (rpm)
100 150 200 250
800
600
400
200
0
Type
212
˚F
Temperature
176
140
104
68
32
0
(Open 8 bits)(Open 8 bits)(Open 8 bits)
(Short 238 bits)(Short 238 bits)(Short 238 bits)
Number of bits
50 100 150 200 255
-4
-40
To obtain data on the outdoor coil tempera­ture, add the number of bits of lighting LEDs, and see the graph below to find the temperature.
3-2 Fan output step
To obtain data on the fan output step, add the number of bits of lighting LEDs, and see the graph below to find the fan rotational frequency.
1PUH18/24EK
2PUH30/36EK
3-3 Total time of compressor operation
Compressor operation time is indicated in 256 hour units. To obtain the compressor operation time, add the hours of light­ing LEDs. During the compressor operation time indication, SW2 is not available.
3-4 Check code indication
● When a protection function works for the first time during operation, the operation stops and restarts after the 3-minutes time delay mode. When the protection function works again, the operation stops. (Check mode) When both SW3-1 and SW3-2 are OFF, the check code is indicated.
● If the outdoor controller board receives the compressor ON command from the indoor controller board during check mode the indication changes to output state indication.
● By pressing SW2 duirng normal operation. operation will continue.
● The latest check code is indicated.
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4. TROUBLESHOOTING ACCORDING TO CHECK CODE
Blinking
LED LD1
LD2
LD3
LD4
LD5
LD6
Diagnosis of malfunction Cause Check point
Reversed phase Phases A1, A2, and A3are con-
Open phase ● Phase A2is open.
Outdoor coil thermistor is abnormal. (Open circuit or short circuit)
High pressure switch (63H2) function
Thermal relay (51C) function ● 51C was connected incor-
Thermal switch (26C) function. ● 26C was connected incor-
nected improperly.
● Contact of protector, such as thermal switch, opened when power was turned on.
● Outdoor coil thermistor is broken.
● Thermistor was connected incorrectly.
● 62H2 was badly connected.
● 63H2 was working.
rectly.
● 51C was working.
rectly.
● 26C is working.
Check the power supply connection.
● Check the power supply.
● Check each protector.
● Measure the resistance of the thermistor.
● Check the thermistor. If normal, replace the out-
● Check 63H2 and the outdoor fan motor.
● Check if refrigerant supply is low.
● Check if air cycle is short-cycled.
● Check 51C, the compressor, and power supply.
● Check 26C.
● Check if refrigerant supply is low.
● Check if the capillary tube is clogged.
door controller board.
LD7
Over heat protection ● The thermistor is broken.
LD8
Input circuit of outdoor con­troller board is abnormal.
● Coil temperature is over 153˚F.
● Pulse input is abnormal. ● Replace the outdoor controller board.
5.WHEN OUTDOOR UNIT DOES NOT WORK
Cause
1) Indoor/outdoor connecting wires are poorly connected. (Refer to next page.)
2) Power supply is poorly connected.
3) Connector or transformer is broken.
4) Fuse (6A) in the outdoor controller board is blown.
● Measure the resistance of the thermistor.
● Check the outdoor fan motor.
● Check if air cycle is short-cycled.
Check points
1) Check the connecting wires.
2) Check the power supply.
3) Check connectors and transformers.
4) Check the fuse.
56
Page 57
6. WRONG WIRING ON SITE
OutdoorIndoor
1 2 3
1 2 3
OutdoorIndoor
1 2 3
1 2 3
OutdoorIndoor
1 2 3
1 2 3
OutdoorIndoor
1 2 3
1 2 3
OutdoorIndoor
1 2 3
1 2 3
6-1 Between remote controller and indoor unit
If the wire is disconnected between the remote controller and the indoor unit, nothing is displayed on the remote controller when the POWER button is pressed. The beep sound will also not be heard.
6-2 Phenomenon due to wrong wiring between indoor and outdoor units
Wrong wiring Mode
Disconnection between 1 and 1 or 2 and 2.
COOL
HEAT
COOL
HEAT
COOL
HEAT
COOL
HEAT
COOL
HEAT
COOL
HEAT
Thermostat
Phenomenon
OFF Operation stops.
4-Way valve turns ON. 9 minutes later, check code “P8” appears
ON
on remote controller display.
OFF
Cooling operation. Several minutes later, check code “P8” appears
on remote controller display.
ON Normal operation.
OFF Outdoor unit stops.
Operation stops. 9 minutes later, check code “P8” appears on
ON
remote controller display.
OFF Operation stops.
Operation stops. 27 minutes later, check code “P8” appears on
ON
remote controller display.
OFF Outdoor unit stops.
Operation stops. 9 minutes later, check code “P8” appears on
ON
remote controller display.
OFF Operation stops.
Operation stops. 27 minutes later, check code “P8” appears on
ON
remote controller display.
OFF Outdoor unit stops.
Operation stops. 9 minutes later, check code “P8” appears on
ON
remote controller display.
OFF Operation stops.
Operation stops, 27 minutes later, check code “P8” appears on
ON
remote controller display.
OFF Outdoor unit stops.
Operation stops. 9 minutes later, check code “P8” appears on
ON
remote controller display.
OFF Operation stops.
Operation stops. 27 minutes later, check code “P8” appears on
ON
remote controller display.
OFF Operation stops.
Operation stops. 9 minutes later, check code “P8” appears on
ON
remote controller display.
OFF Operation stops. 4-way valve turns OFF.
27 minutes later, check code “P8” appears on remote controller
ON
display.
Disconnection between 3 and 3.
COOL
HEAT
Normal operation.
–
OFF Operation stops. 4-way valve turns ON.
Operation stops. 27 minutes later, check code “P8” appears on
ON
remote controller display.
57
Page 58
7. OTHER TROUBLES AND CAUSES
Vanes do not work.
Unit stops after 5 to 20 seconds operation
Air discharge display is OFF and air dis­charge UP/DOWN button does not oper­ate.
In this case, remote controller is normal.
Power ON/OFF button is not available.
t
t
t
Vane motor does not work. Limit swtich does not work. Connector is poorly connected. Vane motor is poorly assembled. Indoor controller board is damaged.
Protection function is working.
Indoor controller board deems the auto vanes are not attached to the unit. Horizontal anlgle can not be detected.
Beep sound is heard, but display is turned OFF.
Beep sound is not heard, and display remains OFF.
t
t
t
t
“CENTRALLY CONTROLLED” is displayed.
t
Indoor controller is damaged. Dip switch setting is wrong.
Indoor controller is damaged. Vane motor is dam­aged. Vane motor limit switch is poorly connected. Auto vane is wired after power is turned to ON.
Indoor/outdoor connect­ing wire is connected incorrectly. Indoor/outdoor connect­ing wire shorts. Compressor protector is damaged. Deicer is broken.
Remote controller is
damaged.
Transmission wire is
poorly connected
Vane motor is damaged.
t t
Refer to check code on remote controller display. See page 52.
Vane motor relay is damaged. Limit switch is damaged.
The size of the cam is wrong.
t
t
t
Vane motor limit switch is damaged. Vane motor is dam­aged.
Poorly connected Disconnected
Transmission wire is damaged. Connector is poorly connected. Indoor terminal block is poorly connected. Remote controller ter­minal block is poorly connected.
8.MR. SLIM/LOSSNAY INTERLOCK OPERATION
<Symptoms that are not malfunctions>
If any of the following symptoms occur, they are not malfunctions.
Symptom
LOSSNAY control switch can not work during interlock operation.
LOSSNAY control switch does not work.
LOSSNAY air speed can not be controlled in interlock opera­tion.
For LOSSNAY, troubleshooting refer to the LOSSNAY technical & service manual. 58
LOSSNAY control switch is effective only while Mr. SLIM is not operat­ing.
LOSSNAY fan speed is fixed to HIGH during interlock operation. LOSSNAY fan speed LOW/HIGH can be switched only during LOSS­NAY individual operation with the LOSSNAY contorl switch.
Cause
Page 59
10
Unit
Remote controller
Unit Unit
Unit
Remote controller
Unit Unit
Unit
Remote controller
Unit Unit
Unit
Remote controll display board
Remote controller
Unit Unit
SYSTEM CONTROL
1. VARIETY OF SYSTEM CONTROL FUNCTIONS
1 Group control with
a single remote controller (See page 59.)
2 Control using two
remote controllers (See page 60.)
3 Individual control
by grouping remote controllers (See page 61.)
4 Multiple remote
control display (See page 62.)
❋ Multiple display
adapter (PAC-SA88HA-E) is needed.
Many units, installed at different locations, can be started and controlled with a single remote controller. The remote controller can be mounted in a different location using a non-polar two-wire cable, which can be extended up to 500m. Amaximum of 50 units can be controlled with a single remote controller. All units operate in the same mode.
Two remote controllers can be used to control either one unit or a group of units. Units can then be controlled from a distance or at close range. Units operate according to the latest command from either remote controller.
By grouping the remote controllers in one place, several units installed at different locations can be controlled indi­vidually, and operation conditions of all units are visible without a special control board. The control method is the same as that of the single unit with a single remote con­troller.
Several units can be controlled with a remote control dis­play board. Operation conditions of all the units are visi­ble with the remote control display board. Individual control by each remote controller is also possi­ble.
59
Page 60
2. GROUP CONTROL WITH A SINGLE REMOTE CONTROLLER
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
To remote controller
To next unit
To next unit
The last unit dose not have this wire.
Next unit electrical box
Master unit electrical box
123ANE
123ANE
Master unit
No.1 unit No.2 unit Last unit
2-wire cable
A maximum of 50 units can be started in order according to the dip switch settings
2-1 How to wire
(1) Connect the remote controller to the double terminal block
on the indoor controller board of the master unit (No.0 unit). (See Figure 1.)
(2) Connect the double terminal block of the master unit to the
double terminal block of No.1 unit.
(3) Connect the double terminal block of No.1 unit to the dou-
ble terminal block of No.2 unit.
(4) Continue the process until all the units are connected with
two-wire cables. (See Figure 2.)
(5) Remove the connector CN40 from the indoor controller
board of each unit except the master unit. (See Figure 3.)
(6) Set the unit-address of each unit with SW2 on the indoor
controller board following the instructions below.
2-2 How to set unit-address
The unit-address also serves as a successive-start timer which starts each unit at intervals of 1 second. If two or more units have the same unit-address in a group control, operation stops due to system error. Be sure to set SW2 correctly following the instructions below. (1) Each lever of SW2 shows the number as follows.
SW2-1 : 1 SW2-4 : 8 SW2-2 : 2 SW2-5 : 16 SW2-3 : 4 SW2-6 : 32
(2) Total number of levers turned to ON shows the address of
the unit. For example, to set No.3 unit, turn ON SW2-1 and SW2-2.
(3) In this way, set from the. master unit to the last unit.
Do not forget to set the master (No. 0) unit.
Figure 1
Figure 2
Figure 3
Indoor controller board CN40
Should be removed from all units other than unit No.0:(Master Unit)
Setting examples
Unit address & start delay in seconds.
2-3 Unit control
The remote controller can control all units ON/OFF, temperature,air flow, and swing louver. However, the thermostat in
each unit turns ON or OFF individually to adjust to the room temperature.
60
SW2
Master (No. 0) unit
ALL OFF
0
No. 1 unit
1 ON
1
No. 2 unit
2 ON
2
No. 4 unit
3 ON
4
No. 8 unit
4 ON
8
No. 16 unit
5 ON
16
No. 32 unit
6 ON
32
Page 61
Remote controller
power supply of control circuit
Remote ON/OFF
switch
2-wire remote controller cable
Figure 6
Relay box Timer adapter cables
Timer adapter PAC-SA89TA-E
3. CONTROL USING TWO REMOTE CONTROLLERS : OPTIONAL REMOTE CONTROLLER
Remote controller
Remote controller
Remote controller
Remote controller
Individual operation
Multiple operation
Main remote controller Sub remote controller
Turn SW17-7 ON
(PAC-SK47RC)
Two remote controllers can be used to control either one unit or a group of units. Units operate according to the latest com­mand from either of the two remote controllers. Before operation, be sure to set one remote controller as the "main controller" and the other as the "sub controller", using dip­switch SW17-7 of the remote controller.
3-1 How to set SW17-7 (See Figure 5.)
(1) For the main remote controller, turn SW17-7 OFF. (2) For the sub remote controller, turn SW17-7 ON.
3-2 Remote controller LCD indication
(1) The same indications always appear on both the main and sub remote con-
trollers, except during the timer operations.
(2) Timer operations can be set with either of the two remote controllers.
However, LCD indication appears only on the remote controller used for timer settings.
(3) If both remote controllers are set for timer operation with different time-set-
tings, the timer operation with the shorter remaining-time is effective.
(4) Self-diagnostic function is available with either of the two remote controllers.
If one of the remote controllers is used for the self-diagnostic function, the other remote controller displays the check mode. If the self-diagnostic function is reset by either of the two remote controllers, both remote controllers are reset.
4. REMOTE ON-OFF AND INDIVIDUAL REMOTE CONTROLS
This method is auailable to control one unit or any number of units. The following operations are available by connecting a relay, a timer adapter (PAC-SA89TA-E), and a remote ON/OFF switch to the system. Timer adapter is an optional part. Other parts are available on the market. (A) To start all units in order by remote ON-OFF switch (B) To stop all units simultaneously by remote ON-OFF switch (C) To switch between the remote ON-OFF control and the individual remote control
4-1 System
Figure 6 shows the case of three units.The same is the case with any number of units.
61
Page 62
NOTE1 : Install the relay box where it can be serviced easily.
Power supply
Remote ON/OFF switch
No.1 unit relay box
No.2 unit relay box
Next unit
T
X2 X2
T
Glow switch or pilot lamp can be combined to easily identify the on-off mode of SW1 and SW2.
To No.1 unit
To No.2 unit
Timer adapter cables
Remote controller
T
X2
SW
1
SW2
T
X2
Remote controller cable (2-core)
Remote controller
NOTE2 : For control circuit wiring, use a wire of No. 14 AWG or a control cable according to the power supply of control
circuit.
NOTE3 : When the power supply of the control circuit is 220/240V AC,
● Do not connect the control circuit wire to the remote controller cable directly.
● Do not place the control circuit wire and the remote controller cable into the same conduit.
4-2 Basic wiring
Caution : Before starting all units simultaneously by the remote ON-OFF switch, be sure to connect a sequence-start timer
into the remote ON-OFF circuit. Otherwise, a rush of starting current may damage the power supply.
4-3 Switch function of remote ON-OFF switch
SW2
(Switches between remote ON-OFF and individual control)
SW1 (Switches between remote ON and OFF.)
ON
(Start)
OFF
(Stop)
ON
(Remote ON-OFF control)
All units start together.
w1
Individual control is not available. All units stop together.
w2
Individual control is not available.
Each unit can be controlled by each remote controller. Remote ON-OFF switch is not available.
OFF
(Individual control)
w1 After all units start together, if SW2 is turned OFF, each unit can be individually stopped by each remote controller. w2 After all units stop together, if SW2 is turned OFF, each unit can be individually started by each remote controller.
5. INDIVIDUAL CONTROL BY GROUPING THE REMOTE CON-
TROLLERS
● Grouping the remote controllers allows individual control and cen-
tralized monitoring of units installed in different places without a special control board.
● Remote control cables are extendable up to 500m. When the cable
length exceeds 12m, use the double-insulated two-core cable such as Belden 9407. Also, the cable thickness must be No. 22 AWG or above.
● When gathering the power ON/OFF switches of air conditioners
near the remote controllers, you should also install the power ON/OFF switch near each unit to prevent electric trouble during servicing.
62
Page 63
6. MULTIPLE REMOTE CONTROL DISPLAY
CN51
connector(5P)
GREEN
Power supply
Electrical insulation is needed.
Wiring at the actual place
Optional multiple display adapter
The maximumdistance between indoor board and relay is 10m.
YELLOW ORANGE
RED
BROWN
5
X1
X1
RL
GL
X2
X2
1
<Wiring >
Power supply
Remote controller cable
Relay box (Field supply)
Remote controller
Remote controller
Remote controller
3wires 3wires 3wires
2wires
No.1 unit No.2 unit No.3 unit
Muitiple remote control ON-OFF display (Field supply)
(Operation check)
<System>
Power supply
RL-1 GL-1
Multiple Remote Control Display
Multiple remote controller adapter
connect to the connector CN51
Relay box
5
X1-1
X2-1
1
<Wiring diagram>
RL-2 GL-2
RL-3
No.1 unit
GL-3
X1
X2
5
1
No.2 unit
X1
X2
5
1
No.3 unit
X1
X2
X1-2
X2-2
X1-3
X2-3
You can control serveral units with a multiple remote control display,by wiring an optional multipe display adapter (PAC-SA88HA-E) with relays and lamps on the market.
6-1 How to wire
(1) Connect the multipe display adapter to the connector CN51 on the
indoor controller board.
(2) Wire three of the five wires from the multiple display adapter as shown
in the figure below.
[Notes on Signs] X1:Relay (for check lamp) X2:Relay (for operation lamp) RL:Check Lamp GL:Operation Lamp [Field supplied parts]
Relays:12V DC with rated coil power con-
sumption below 0.9W.
Lamps:Matching to power supply voltage.
Indoor controller board
63
Page 64
11
Metal fixture
Screws
Hanger of indoor unit
Catch of installation plate
Terminal cover
Electrical parts box cover
Connector
Connector
Indoor controller board
Right side panel
DISASSEMBLY INSTRUCTIONS
Indoor unit PKH24FK
OPERATING PROCEDURE PHOTOS&ILLUSTRATION
1. Removing the lower side of the indoor unit from the instal­lation plate
(1) Remove the 2 screws.
Hang the indoor unit hangers to the catches on the instal­lation plate.
Figure 1
2. Removing the right side panel
(1) Remove the 2 screws of the right side panel:one on the
bottom and the other on the upper right-hand side. (2) Disconnect the connector from the adapter case. (3) Sliding the right side panel to the right, pull it out toward
you.
3. Removing the indoor controller board
(1) Remove the right side panel. (2) Remove the screw of the electrical parts box cover, and
remove the cover. (3) Disconnect the connectors on the indoor controller board. (4) To unhook the catches on the right-hand side of the indoor
controller board, pull the left-hand side toward you and lift
up the cover to the right. Then the indoor controller board
can be removed.
Figure 2
Photo 1
Indoor controller board
Electrical parts box cover
Catches
4. Removing the ielectrical parts box
(1) Remove the right side panel. (2) Remove the screw of the electrical parts box cover, and
remove the cover. (3) Remove the room temperature thermistor and the indoor
coil thermistor. (4) Disconnect the vane motor connector on the indoor con-
troller board. (5) Remove the 2 screws of the electrical parts box. (6) Disconnect the connector of the heater lead wire connec-
tor. (7) Disconnect the connector of the fan motor lead wire. (8) Remove the electrical parts box.
64
Photo 2
Room temperature thermister
Indoor coil thermister
Screws
Electrical parts box
Page 65
OPERATING PROCEDURE PHOTOS&ILLUSTRATION
Catch on the left side panel
Catch on the unit
(8) Remove the screws of the indoor controller board case,
and pull out the indoor controller board case. Then the transformer and the capacitor and relay can be serviced.
5. Removing the vane motor
(1) Remove the right side panel. (2) Remove the screw of the electrical parts box cover, and
remove the cover.
(3) Remove the 2 screws of the vane motor, and remove the
motor from the shaft.
(4) Disconnect the vane motor connector on the indoor con-
troller board.
Photo 3
Capacitor
Indoor controller board case
Photo 4
Vane motor
Relay
Transformer
Electrical parts box
Screws
Indoor controller board
6 Removing the intake grills
(1) Remove the right side panel. (2) To remove the left side panel, remove the screw on the
bottom and the screw on the upper left-hand side. (See Figure 3.)
1. Press up this side of the left side panel to unhook the catch on the panel from the catch on the unit.
2. Slide the left side panel to the left to remove the panel.
Note: Fix the unit to the metal fixture securely (3) Remove the air filters. (4) Hold and press the center cover to remove. (5) Remove the screws of the grills. (6) Pull the lower side of the grill toward you and slide the
upper to the right to remove the grills.
7. Removing the drain pan
(1) Remove the left and right side panels. (2) Remove the grills. (3) Remove the electrical parts box cover. (4) Loosen the drain hose band to remove. (5) Remove the 3 screws of the drain pan, and slide the drain
pan toward you to remove.
Figure 3
Photo 5
Left side panel
Photo 6
Slide to the right
Screws for grills
Drain pan
Screws
Grills
Drain hose band
Drain hose
65
Page 66
OPERATING PROCEDURE PHOTOS
8. Removing the lineflow fan and the fan motor
(1) Remove the left and right side panels. (2) Remove the grills. (3) Remove the electrical parts box. (4) Remove the drain pan. (5) Loosen the screw that fixes the lineflow fan to the fan
motor. (See Photo 7. )
(6) Remove the 4 screws of the motor fixture, and remove the
fan motor and the motor fixture at a time (See Photo 8.)
(7) Remove the screws of the left and right motor supports,
and remove the motor supports and the fan motor. (See Photo 9.)
(8) Remove the 2 screws on the left and right sides of the heat
exchanger, and pull the bearing support toward you. (See Photo 11.)
(9) Remove the screw of the center support, and remove the
support. (See Photo 10. )
(10) Pull the left-hand side of the heat exchanger toward you,
and remove the lineflow fan.
Photo 11
Heat exchanger
Bearing support
Photo 7
Photo 8
Photo 9
Screw
Motor support
Lineflow fan
Fan motor
Screw
Fan motor
Screw Fan motor
Motor fixture
Screw
Lineflow fan
9. Removing the electrical heater.
(1) Remove the left and right side panels. (2) Remove the grills. (3) Remove the drain pan. (4) Loosen the screw that fixes the lineflow fan to the fan
motor.(See Photo 7.)
(5) Remove the screw of the center support, and remove the
support. (See Photo 10.)
(6) Remove the 2 screws on the left and right sides of the heat
exchanger, and pull the bearing support toward you. (See Photo 11.)
(7) Pull the left-hard side of the heat exchanger toward you,
and remove the lineflow fan.
(8) Remove the heater fixing screws (1 screw each on right
and left sides), and slide the heater element to the left to remove the heater.
Photo 10
Photo 12
Heat exchanger
Lineflow fan
Heater element
Motor support
ScrewCenter support
Heater fixing screws
66
Page 67
13-4 Outdoor unit (PUH18EK)
Outdoor controller board
Transformer
Capacitor
Contactor
Terminal block
Screws
Propeller
Motor support
Separator support plate
High-pressure switch
Lead connectors
Valve bed
Crankcase heater
Propeller nut
Screws
Top panel
Service panel
Cover panel
Front panel
OPERATING PROCEDURE PHOTOS
1. Electrical parts
(1) Remove top panel (3 screws in front, 2 screws in rear) (2) Remove cover panel (1 screw).
The panel is anchored by clicks to the side panel. Remove by pulling towards you.
(3) Remove cover panel (1 screw).
The panel is anchored by clicks on the right and left sides. After removing the screw, pull the panel down and remove it by pulling towards you.
Photo 1
Photo 2
2. Fan motor
(1) Remove front panel (3 screws).
Open the panel to a 45 degree angle and lift to remove. The
panel is clasped at three points on the left side. (2) Remove propeller (1 set nut). (3) Remove fan motor (3 screws).
Remove lead connectors.
Photo 3
67
Page 68
OPERATING PROCEDURE PHOTOS
Heat exchanger
Accumulator
Charge plug
Ball valve
Compressor
3. Heat Exchanger, Compressor
(1) Remove the rear panel (2 screws in front, 1 screw on the
side, 3 screws in the rear). Remove the valve bed, and open the rear panel to the rear to remove.
NOTE :
All panels are clasped, and must be removed by shifting up and down.
(2) Remove right side panel (4 screws). (3) Remove rear guard (3 screws). (4) Remove separator support plate (4 screws). (5) Remove motor support (2 screws). (6) Remove valve bed (5 screws). The valve bed is clasped on
the right and left sides. Lift to remove.
(7) Remove the electrical parts box.
Remove the respective connectors from highpressure
switch, crank case heater, shell thermo, and fan motor lead. (8) Remove separator (2 screws). (9) Remove heat exchanger (2 screws).
Disconnect the welded section of pipe. (10) Remove compressor (3 set nuts).
Remove the weldment of the compressor suction pipe and
discharge pipe.
Photo 4
Screws
Photo 5
Screws
68
Photo 6
Page 69
13-5 Outdoor unit (PUH24EK)
Screws
Panel cover
Compressor protector
Run capacitor
52C relay
Terminal block
Screws
Motor support
Separator support place
High-pressure switch Valve bed
Crank case heater
Propeller fan
Propeller nut
OPERATING PROCEDURE PHOTOS
1. Electrical parts
(1) Remove top panel (3 screws in front, 2 screws in rear) (2) Remove cover panel (1 screw).
The panel is anchored by clicks to the side panel. Remove by pulling towards you.
(3) Remove cover panel (1 screw).
The panel is clasped on the right and left sides. After remov­ing the screw, pull the panel down and remove it by pulling towards you.
Photo 1
Photo 2
2. Fan motor
(1) Remove front panel (3 screws).
Open the panel to a 45 degree angle and lift to remove. The
panel is clasped at three points on the left side. (2) Remove propeller (1 set nut). (3) Remove fan motor (3 screws).
Remove lead connectors.
Photo 3
69
Page 70
OPERATING PROCEDURE PHOTOS
Heat exchanger
Accumulator
Charge plug
Ball valve
Compressor
3. Heat Exchanger, Compressor
(1) Remove the rear / right side panel (2 screws in front, 1 screw
on the side, 3 screws in the rear). Remove the electrical box, valve bed, and open to the rear
to remove (anchors attached). (2) Remove right side panel (4 screws). (3) Remove rear guard (3 screws). (4) Remove separator support plate (4 screws). (5) Remove motor support (2 screws). (6) Remove valve bed (5 screws). The valve bed is clasped on
the right and left sides. Lift to remove. (7) Remove the electrical parts box.
Remove the respective connectors from highpressure
switch, Low-pressure switch, crank case heater, shell ther-
mo, and fan motor lead. (8) Remove separator (2 screws). (9) Remove heat exchanger (2 screws).
Remove piping weld zone. (10) Remove compressor (3 set nuts).
Remove the weldment of the compressor suction pipe and
discharge pipe.
NOTE :
All panels are clasped, and must be removed by shifting up
and down.
Screws
Photo 4
Screws
Photo 5
70
Photo 6
Page 71
PART LIST12
No.
Parts No. Parts Name Specifications
Remarks
(Drawing No.)
Wiring
Diagram
Symbol
Q'ty / set
PKH
24FK 30FK18FK
Part number that are circled not shown in the figure.
1 2 3 4 5
6
7
8
9
10
R01 12G 661 R01 12G 662 R01 12G 691 R01 16G 692 R01 12G 500 R01 12G 811 R01 16G 811 R01 12G 812 R01 16G 812 R01 12G 641 R01 16G 641 R01 12G 523 R01 12G 808 R01 16G 808
RIGHT SIDE PANEL LEFT SIDE PANEL
INTAKE GRILLE
AIR FILTER
NOSE
UNDER PLATE
TOP PLATE
DRAIN SOKET
BACK PLATE
1 1 2
4 1
1
1
1 1
1 1 2
4 1
1
1
1 1
1 1 2 1 5
1
1
1 1
1
36FK
1 1 2 1 5
1
1
1 1
1
PKH18FK PKH24FK PKH30FK PKH36FK
STRUCTURAL PARTS
71
Page 72
PKH-18FK PKH-24FK PKH-30FK PKH-36FK
33
14
34
24
21
No.
Parts No. Parts Name Specifications
T7W BOO 762
1
T7W B01 762 R01 12G 105
2
R01 16G 105 R01 12G 115
3
R01 16G 115 R01 12G 114
4
R01 16G 114 R01 005 103
5
R01 12G 103
6
72
FAN MOTOR
RUBBER MOUNT
RIGHT LINEFLOW FAN
LEFT LINEFLOW FAN
SLEEVE BEARING
1
2
1
1
1 1
Q'ty / set
PKH
24FK 30FK18FK
1
2
1
1
1 1
Remarks
(Drawing No.)
36FK
1
1
2
2
1
1
1
1
1
1
1
1
Wiring
Diagram
Symbol
MF MF
Page 73
No.
Parts No. Parts Name Specifications
Remarks
(Drawing No.)
Wiring
Diagram
Symbol
Q'ty / set
PKH
24FK 30FK18FK
7 8
9
10
11
12 13 14
15
16 17 18 19 20 21 22 23 24 25
26
27
28
29
30 31 32 33
34
BEARING MOUNT
DRAIN PAN
VANE MOTOR
AUTO VANE
CENTER COVER JOINT SHAFT DRAIN HOSE
HEAT EXCHANGER
CONTROLLER BOARD FUSE
TERMINAL BLOCK
RUN CAPACITOR TRANSFORMER
THERMISTOR
REMOTE CONTROLLER TERMINAL BLOCK
HEATER ELEMENT
THERMAL SWITCH
THERMAL FUSE
RELAY
REMOTE CONTROLLER CABLE
FAN GUARD
REMOCON COVER INSULATOR INSULATOR
1 1 1
1 2
1 1 1 1
1 2 1 1 1 1 1 1 1 1 3
1 2
1 1 2
1 1
1 1 1
1 2
1 1 1 1
1 2 1 1 1 1 1 1 1 1 3
1 1
1 1 2
1 1
1 1
1 1
2 1 1 1
1 1 2
1 1 1 1 1 1 1
3 1
1 2
1
2 1
3
36FK
1 1
1 1
2 1 1 1
1 1 2
1 1 1 1 1 1 1
3 1
1 2
1
2 1
3
MV
I.B
F1.2<I.B>
TB2 TB4
C
T RT1 RT2 R.B TB5
H
H 26H
FS1.2 FS1.2
88H 88H
250V 6A 3P(1, 2, 3) 2P(L1, L2)
2.5µF 440V
INDOOR COIL
2P(1/2) 240V 700W 240V 800W
117¡C 10A 250V 117¡C 15A 250V LY1F DC1 LY2F DC12V 12m
R01 Z61 102 R01 KV5 102 T7W B02 529 T7W B03 529 R01 12G 223 R01 12G 002 R01 16G 002 R01 12G 621 R01 12G 063 R01 KV5 527 T7W B02 480 T7W B03 480 T7W B05 310 T7W 410 239 R01 377 246 R01 998 246 R01 A00 255 T7W B02 799 R01 06A 202 R01 22A 202 T7W 417 200 R01 556 246 T7W 587 300 T7W 589 300 T7W B00 700 R01 12G 706 T7W 589 706 R01 479 215 R01 673 215 T7W 556 305 T7W B02 675 T7W B03 675 T7W 351 077 R01 20J 303 R01 30J 303
73
Page 74
PUH18EK FUNCTIONAL PARTS
74
Page 75
No.
Parts No. Parts Name Specifications
Remarks
(Drawing No.)
Wiring
Diagram
Symbol
Q'ty / set
PUH
18EK
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
PROPELLER FAN MOTOR OUTDOOR CONTROLLER BOARD FUSE
TERMINAL BLOCK
CONTACTOR FAN CAPACITOR TRANSFORMER COMPRESSOR CAPACITOR OUTDOOR COIL THERMISTOR OVERCURRENT RELAY COMPRESSOR CRANKCASE HEATER R.V.COIL 4-WAY VALVE CONTROL HIGH PRESSURE SWITCH PROTECT HIGH PRESSURE SWITCH FUSIBLE PLUG B.V.COIL BYPASS VALVE OIL SEPARATOR CAPILLARY TUBE RESTRICTOR VALVE CAPILLARY TUBE STRAINER ACCUMULATOR
CHARGE PLUG
BALL BALVE
OUTDOOR HEAT EXCHANGER
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
MF
O.B.
F TB1 TB3 52C
C1
T
C
RT
51C
MC
HC
21S4
63H1 63H2
21R
OUTDOOR FUNCTION S6V-85FPH
250V 6A 3P(L1,L2,GR) 3P(1,2,3) S-U12 208/230V 3µF 440V
RED:12.3VAC,0.06A BRN:12.3VAC,0.06A
30µF 370V
MRA98881-90 RH-247NAB 240V 30W
OPEN psiG 363 OPEN psiG 469
0.098o0.024o39.4
0.157
o
0.079o33.5
3/8 5/8
R01 A00 115 T7W 850 763 T7W A30 315 T7W 410 239 T7W 850 716 R01 377 246 T7W A30 708 R01 576 255 T7W A30 799 T7W 969 723 R01 J01 202 T7W 969 238 T97 665 600 T7W 850 236 T7W 875 242 T7W 875 403 R01 A00 208 T7W A30 208 T7W 973 507 T7W 869 242 R01 272 428 R01 V39 490 R01 A00 425 R01 L11 418 T7W 851 425 R01 A04 450 R01 A08 440 R01 590 413 R01 943 413 R01 943 410 R01 951 411 R01 A10 408
w This part is not shown in the illustration.
75
Page 76
PUH24EK FUNCTIONAL PARTS
76
Page 77
w This part is not shown in the illustration.
No.
R01 A00 115
1
T7W 851 763
2
T7W A30 315
3
T7W 410 239
4
T7W 850 716
5
R01 377 246
6
T7W 867 708
7
R01 653 255
8
T7W A30 799
9
T7W 973 723
10
R01 J07 202
11
T97 517 300
12
T7W 851 236
13
T7W A31 242
14
T7W 260 403
15
R01 A00 208
16
T7W A30 208
17
T7W 973 507
18
T7W 869 242
19
R01 272 428
20
R01 A14 490
21
R01 A00 425
22
R01 993 418
23
R01 600 425
24
R01 A11 450
25
R01 A12 440
26
R01 590 413
27
R01 943 413
28
R01 943 410
29
R01 951 411
30
T7W A31 408
31
Parts No. Parts Name Specifications
PROPELLER FAN MOTOR OUTDOOR CONTROLLER BOARD FUSE
TERMINAL BLOCK
CONTACTOR FAN CAPACITOR TRANSFORMER COMPRESSOR CAPACITOR OUTDOOR COIL THERMISTOR COMPRESSOR CRANKCASE HEATER R.V.COIL 4-WAY VALVE CONTROL HIGH PRESSURE SWITCH PROTECT HIGH PRESSURE SWITCH FUSIBLE PLUG B.V.COIL BYPASS VALVE OIL SEPARATOR CAPILLARY TUBE RESTRICTOR VALVE CAPILLARY TUBE STRAINER ACCUMULATOR
CHARGE PLUG
BALL BALVE
OUTDOOR HEAT EXCHANGER
OUTDOOR FUNCTION S6V-60FPP
250V 6A 3P(L1,L2,GR) 3P(1,2,3) S-K25UR 208/230 4µF 440V
RED:12.3VAC,0.06A BRN:12.3VAC,0.06A
40µF 400V
NH-33NBD 240V 43W
OPEN psiG 363 OPEN psiG 469
0.098o0.024o39.4
o
0.063o17.3
0.126
3/8 5/8
Q'ty / set
PUH
24EK
2 2 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 2
Remarks
(Drawing No.)
Wiring
Diagram
Symbol
MF1,2
O.B.
F TB1 TB3 52C
C1,2
T
C
RT
51C
MC
HC
21S4
63H1 63H2
21R
77
Page 78
PUH30/36EK FUNCTIONAL PARTS
6
36 37
3
4
10·11
8
9
1
36 37
1
2
5
19·20
13·14
24
12
23
33
7 28
17·18
27
33
29
30·31
32
16 21
22
34
35
15
78
Page 79
w This part is not shown in the illustration.
No.
R01 A00 115
1
T7W 852 763
2
T7W A30 315
3
T7W 410 239
4
T7W 850 716
5
R01 377 246
6
T7W 867 708
7
T7W 867 723
8
T7W 975 723
9
R01 653 255
10
R01 576 255
11
T7W A30 799
12
T97 511 300
13
T97 518 300
14
T7W 851 236
15
R01 J01 202
16
T7W A31 242
17
T7W 875 242
18
T7W 261 403
19
T7W 258 403
20
T7W 869 242
21
R01 A14 428
22
R01 A00 208
23
T7W A30 208
24
R01 A14 490
25
R01 A00 425
26
T7W 973 507
27
R01 A14 440
28
R01 993 418
29
R01 591 425
30
R01 591 425
31
R01 A14 450
32
R01 943 413
33
R01 670 410
34
R01 670 411
35
R01 A14 408
36
R01 A16 408
37
Parts No. Parts Name Specifications
PROPELLER FAN MOTOR OUTDOOR CONTROLLER BOARD FUSE
TERMINAL BLOCK
CONTACTOR COMPRESSOR CAPACITOR
FAN CAPACITOR
TRANSFORMER
COMPRESSOR
CRANKCASE HEATER THERMISTOR
R.V.COIL
4-WAY VALVE
B.V.COIL BYPASS VALVE CONTROL HIGH PRESSURE SWITCH PROPECT HIGH PRESSURE SWITCH OIL SEPARATOR CAPILLARY TUBE FUSIBLE PLUG ACCUMLATOR RESTRICTOR VALVE
CAPILLARY TUBE
STRAINER CHARGE PLUG
BALL BALVE
OUTDOOR HEAT EXCHANGER
OUTDOOR FUNCTION VC086DC
250V 6A 3P(L1,L2,GR) 3P(1,2,3) S-K25UR 50µF 400V 60µF 360V 4µF 440V 3µF 440V
RED:12.3VAC,0.06A BRN:12.3VAC,0.06A
NH-41NAD NH-47NAD 240V 43W PIPE TEMPERATURE
OPEN psiG 363 OPEN psiG 469
2.5o0.6-1000mm
0.157o0.079o23.6
0.157
o
0.079o17.7
1/2 3/4
30EK
2 2 1 1 1 1 1 1
2
1 1
1 1 1
1
1 1 1 1 1 1 1 1 2 2
1 2 1 1 2
Q'ty / set
PUH
36EK
2 2 1 1 1 1 1
1
2 1
1 1 1
1
1 1 1 1 1 1 1 1 1 2
2 1 2 1 1
2
Remarks
(Drawing No.)
Wiring
Diagram
Symbol
MF1,2
O.B.
F
TB1 TB3
52C
C
C
C1,2 C1,2
T
MC MC HC
RT
21S
21S4
21R
63H1 63H2
79
Page 80
PUH18EK STRUCTURAL PARTS
No.
1 2 3 4 5 6 7 8 9
80
Parts No. Parts Name Specifications
R01 A08 668 R01 A08 661 R01 A08 662 R01 A00 675 R01 A00 641 R01 A00 658 R01 A00 686 R01 A08 682 R01 A08 698
FRONT PANEL SERVICE PANEL SIDE PANEL FAN GUARD TOP PANEL PANEL COVER BASE ASSEMBLY REAR PANEL REAR GUARD
OUTDOOR FUNCTION
Q'ty / set
PUH
18EK
1 1 1 1 1 1 1 1 1
Remarks
(Drawing No.)
Wiring
Diagram
Symbol
Page 81
PUH24EK STRUCTURAL PARTS
No.
Parts No. Parts Name Specifications
Remarks
(Drawing No.)
Wiring
Diagram
Symbol
Q'ty / set
PUH
24EK
1 2 3 4 5 6 7 8 9
TOP PANEL FRONT PANEL FAN GUARD SERVICE PANEL SIDE PANEL (LEFT) REAR PANEL PANEL COVER REAR GUARD BASE ASSEMBLY
1 1 2 1 1 1 1 1 1
R01 A00 641 R01 A11 668 R01 A00 675 R01 A11 661 R01 A11 662 R01 A11 682 R01 A00 658 R01 A11 698 R01 A10 686
81
Page 82
PUH30/36EK STRUCTURAL PARTS
No.
1 2 3 4 5 6 7 8 9
82
Parts No. Parts Name Specifications
R01 A14 641 R01 A14 668 R01 A00 675 R01 A14 661 R01 A14 662 R01 A14 682 R01 A00 658 R01 A14 698 R01 A14 686
TOP PANEL FRONT PANEL FAN GUARD SERVICE PANEL SIDE PANEL (LEFT) REAR PANEL PANEL COVER REAR GUARD BASE ASSEMBLY
30EK
1 1 2 1 1 1 1 1 1
Q'ty / set
PUH
36EK
1 1 2 1 1 1 1 1 1
Remarks
(Drawing No.)
Wiring
Diagram
Symbol
Page 83
13
Part No Pipe length Pipe size OD Connection method
PAC-05FFS-E
5m
PAC-07FFS-E
7m
Liquid : 3/8 Gas : 5/8
Indoor unit : Flared Outdoor unit : Flared
PAC-10FFS-E
10m
PAC-15FFS-E
15m
28˚C
26
˚C
8:00
Normal
operation
23:00
Setback
operation
8:00
Normal
operation
Part No Pipe length Pipe size OD Connection method
PAC-SC51PI-E
5m
PAC-SC52PI-E
7m
Liquid : 1/2 Gas : 3/4
Indoor unit : Flared Outdoor unit : Flared
PAC-SC53PI-E
10m
PAC-SC54PI-E
15m
OPTIONAL PARTS
1. REFRIGERANT PIPES
FOR model: PKH18/24FK
FOR model : PKH30/36FK
Note 1. How to connect refrigerant pipes.
Factory supplied optional refrigerant pipings contain refrigerant at the above atmospheric pressures. As long as the connection takes no more than 5 minutes, no air will enter, and there will be no need for air purging. Remove the blind caps and make the connections within 5 minutes. After the connections for the indoor and outdoor units are made, open the stop valve on the outdoor unit to allow refrigerant gas to flow. If piping length exceeds 5m,an additional charge of refrigerant is needed.
Note 2. The following main parts are contained in the optional refrigerant piping kit.
Heat insulating cover, vinyl tapes, nipples, sleeve and flange (for wall hole),connecting cables.
2. TIMER
When using a program timer, PAC-SK65PT, a program timer adapter (PAC-825AD) is also needed.
Part No. PAC-SK65PT (with set back function)
Model Name Program timer
2-1 Program timer specifications
Part name Program timer Part No. PAC-SK65PT Exterior dimensions 120 o 120 o 15mm Installation Wall mount Type of clock Quartz Clock accuracy ± 50s / month
Display — Time
— Week — Timer setting
Program cycle 24 hours Timer setting unit 30 minutes No. of set points 48 / day Power rating 5V DC Se back function Provided
2-2 Feature of program timer
(1) Daily timer function
Daily timer can be set in 30 minutes units for up to 24 hours. Each unit can be set for unit ON, unit OFF, or setback operation.
(2) Setback operation (PAC-SK65PT)
Set back operation is useful for reducing running costs e.g. At a hotel with a 24-hour system
8:00~23:00 Cooling operation with set temperature at 26°C
23:00~8:00 Setback operation with 2 degrees of setback As shown in the chart on the right, the set temperature rises 2 degrees automatically during the setback operation. When the setback operation ends, nomal operation will begin.
(3) Weekly timer function
Daily timer function can apply to each day of the week.
Liquid cystal display Liquid cystal display Liquid cystal display
83
Page 84
MITSUBISHI ELECTRIC
SET MONITOR
SMTWTFS
GET BACK
SET/MONITOR
BACK
AHEAD
ON
DAILY TIMER
BACK
SET BACK
ON OFF
OFF
DEGREE SET BACK
WEERLY TIMER
TODAY
CLOCK
AHEAD
Remote
controller
2-wire cable
5-wire cable
To indoor unit
Connector CN1 Connector CN1
Program
timer
2-3. How to connect program timer
(1) Install the program timer next to the remote controller the same way as the remote controller is installed. (2) Connect the program timer and the remote controller with a 6-wire cable as shown in the figure below
NOTE:While the program timer is connected to the remote controller, the
24hour ON/OFF timer on the remote controller will not operate.
2-4 Names and functions <PAC-SK65PT>
Mode selector button :Using this button to select ¨MONITOR¨ or
¨SET¨ mode.
¨MONITOR¨ : Indicates the current timer setting. All buttons
SET / MONITOR
except will not work. This is the normal status.
¨SET¨ : ¨SET¨ is used to set the time, change the day of the
week, and program the daily and weekly timer.
Mode dispay
Current time
Current day
Weekly timer
Daily timer dislay
NOTE : Display above
is only an exanple
display
display
display
Set back
display
Clock adjustment button : Used to adjust the current time. Press
AHEAD Each time the button is pressed the time advances by 1 minute. Pressing continu­ously advances 1 minute in a 0.5 second interval. When the lower digit of minute becomes 0 the indication advances in 10 minutes unit. button is used for reversing the time. Each time the button is pressed the time reverses by 1 minute. Pressing continuously reverses the time by 1 minute in a 0.5 second interval. When the lower digit of minute becomes 0 the indication reverses in 10 minutes unit.
Day setting button : Used to adjust the day of the week.
Pressing button moves the day
BACK
light display in the order of S
Weekly timer button : Used to set the weekly timer.
Set back button : Used to set the set back amount.
Set back can bee set in the range of 1 to 48˚F in 34˚F unit.
Daily timer button : Used to set the timer settings in units of 30
minutes.
button to advance the time.
BACK
➛M➛T➛W
3. TIMER ADAPTER
This adapter is needed for system control and for operation via external contacts. Adapter connection is described on page
57.
84
Part No. PAC-SA89TA-E
ORN 1 BRN RED
2 3
Page 85
4. MULTIPLE REMOTE CONTROLLER ADAPTER
This adapter is needed for remote indication (operation/check). Adapter connection is described on page 69.
Part No. PAC-SA88HA-E
1 2 3 4 5
BRN RED ORN YLW GRN
5. CENTRALIZED REMOTE CONTROLLER
Allows individual or combined control of up to 16 units. When using the PAC-805RC, the program timer adapter (PAC­825AD)is also needed. See page 90.
Part No. PAC-805RC
5-1. Dimensions
12
113
56.3 11
23.5
Unit : mm
BACK
ACTIVE BYPASS
DUAL
CENTRAL
MITSUBISHI ELECTRIC
117
POWER ON/OFF
AHEAD
BACK
ACTIVE BYPASS
DUAL
CENTRAL
10 9 8 7 6 5 4 3 2 1
POWER ON/OFF
AHEAD
8
113
ENGAGED
GROUP
12345678910
GROUP SELECTION
117
ACTIVE BYPASS
DUAL CENTRAL
PROGRAM TIMER
CONTROLLER OPERATION
ENGAGED
GROUP
12345678910
ACTIVE BYPASS
DUAL CENTRAL
GROUP SELECTION
PROGRAM TIMER
CONTROLLER OPERATION
5-2. Functions
"ENGAGED" indicator When this indicator is lit, transmission is in progress and all switches are inoperative.
DUAL/CENTRAL switch This change-over switch governing the
operation of the accessory remote con­troller.
"DUAL" Instructions from both the accessory remote controller and the centralized
ENGAGED
GROUP
12345678910
ACTIVE BYPASS
DUAL CENTRAL
GROUP SELECTION
PROGRAM TIMER
CONTROLLER OPERATION
remote controller are valid. (Priority given to the last instruction received.)
"CENTRAL" ON/OFF switching by the accessory remote controller is invalidated. Controll is by the centralized remote controller only. Initial setting is "DUAL".
LCD Matrix Display This display indicates the operational sta­tus of all connected units either by steady lighting or by flashing.
Independent “DUAL / CENTRAL” and “ACTIVE / BYPASS” setting of all the groups is possible. When the power supply to the centralized remote controller is cut due to power failure, all settings will return to original “DUAL” and “BYPASS”.
POWER ON/OFF
AHEAD
BACK
ACTIVE
BYPASS
DUAL
CENTRAL
MITSUBISHI ELECTRIC
POWER ON/OFF switch Operation ON/OFF switch.
▲BACK ▼AHEAD buttons These buttons are used to designate the attached unit(s). (They designate the unit that is centrally controlled.)
●When group “00” is designated; col­lective ON/OFF instruction is sent to all units.
●When group “01”-“16“ is designated; ON/OFF instruction is sent to the des­ignated units only.
ACTIVE/BYPASS switch This is a change-over switch for the program timer. (It selects timer operation on the pro­gram timer.) Use “BYPASS” when a program timer is not connected. “ACTIVE” The switch tums ON/OFF operational instructions from the program timer automatically. “BYPASS” ON/OFF Operation is by the central­ized remote controller only. Initial setting is “BYPASS”.
85
Page 86
5-3 Connection method
(1) Connections in the power supply cord.
1. Connect the power supply cord to the power supply terminal-block and fix it in-place with a tie-wrap. Connect a single phase 200V AV (220, 230, 240V) to As E is the GND terminal, be sure to ground the earth wire.
2. Connect the transmission line to the transmission terminal-block and fix it in-place with a tie-wrap. Use a Ø1.6 (AWG 14) or above two-wire cable for the transmission line. CAUTION : Never connect the power supply cord to the transmission terminal-block.
TERMINAL-BLOCK FOR TRANSMISSION
TERMINAL-BLOCK OF POWER SUPPLY
A N.
Transmission
Tie-wrap
TRANSFORMER
A N E
Fuse(5A)
Tie-wrap
(W) (R) (O)
(BR)
200
220
230
T
(Y)
240
5A
A
N
E
Wiring has to be changed when a 200,230 or 240V power is used.
(2) Connection method of centralized remote controller and power supply board.
1. Connect the centralized remote controller and power supply board with a non-polar, two-wire cable.
To adaptor's terminal-block
Centralized remote controller
ENGAGED
GROUP
12345678910
ACTIVE BYPASS
DUAL CENTRAL
GROUP SELECTION
PROGRAM TIMER
CONTROLLER OPERATION
BACK
ACTIVE
BYPASS
DUAL
CENTRAL
10 9 8 7 6 5 4 3 2 1
POWER ON/OFF
AHEAD
Non-polar, two-wire cable
Power supply board box
To adaptor's terminal-block
POWER SUPPLY
86
2. Wiring diagram 3. Be sure to set the maximum address number with the
dipswitch SW17 on the centralized remote controller.
BACK
ACTIVE BYPASS
DUAL
CENTRAL
10 9 8 7 6 5 4 3 2 1
POWER ON/OFF
AHEAD
Dip switch SW17
Centralized remote controller
Power supply board
ENGAGED
GROUP
12345678910
ACTIVE BYPASS
DUAL CENTRAL
GROUP SELECTION
PROGRAM TIMER
CONTROLLER OPERATION
Page 87
6. PROGRAM TIMER ADAPTER
Length : 2m (6' 7")
Length : 2m (6' 7")
Length : 2m (6' 7")
This adapter is needed when a program timer(PAC-SK65PT)or a centralized remote controller(PAC-805RC)is used.
Part No. PAC-825AD
6-1 Parts included
1 ADAPTER··························x1 2 3-core cable ···························x1
3 3-core cable···························x1
Length : 2m (6' 7")
4 4-core cable···························x1
5 5-core cable···························x1
6-2 Connection method Connection and wiring methods differ with the type of the indoor unit used. Confirm the type before carrying out the work.
(1) Connections in the adapter box
1. Connect the power supply cord to the terminal-block and fix it in-place with a tie-wrap. Connect a single phase 200V (220, 230, 240V) AV to A N. As E is the GND terminal, be sure to ground the earth wire.
2. Connect the transmission line to the transmission terminal-block and fix it in-place with a tie-wrap (when a centralized remote controller is being used). CAUTION : Never connect the power supply cord to the transmission terminal-block
Fig-1 Fig-2
TERMINAL-BLOCK FOR TRANSMISSION
Tie-wrap
Transmission cord
CN22
Dip switch
TRANS
CN1 CN21 CN51 CN30CN42 CN50 CN40
Fuse(5A)
TRANSFORMER
(AG)
SW1
A N E
POWER SUPPLY CORD
TERMINAL-BLOCK FOR POWER SUPPLY
Tie-wrap
Terminal block for transmission to program timer or centralized remote controller
Wiring has to be changed when 200V power supply is used.
(W)
CN22
TRANS
(B)
200
SW1
T
(Y)
240
220
5A
A
POWER
SUPPLY N E
(2) When the centralized remote controller is used, set the address number with the dipswitch SW1 of the pro-
gram timer adapter.
87
Page 88
cCopyright 1997 MITSUBISHI ELECTRIC ENGINEERING CO.,LTD. Issued in Jun. 1997. No. OC120 5020
New publication, effective Jun. 1997 Specifications subject to change without notice
Page 89
3400 Lawrenceville Suwanee Road ● Suwanee, Georgia 30024
Toll Free: 800-433-4822 ● Toll Free Fax: 800-889-9904
www.mrslim.com
Specifications are subject to change without notice.
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