Mitsubishi M-P0398 TECHNICAL MANUAL

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June 2008

Air to Water (ATW) Heat pump, Interface (I/F) and Flow temp. controller (FTC) Technical manual

CONTENTS

1. What is ATW heat pump? .......................................................2

2. Heat pump unit_General information ...................................4

3. System design ......................................................................15

4. Interface (I/F) ........................................................................23

5. Flow temp. controller (FTC) .................................................55

6. Requirements........................................................................90

7. System example ...................................................................91

What is ATW heat pump?1

1-1. Compare with conventional fossil fuel boiler

• Heat pumps produce water at 30°C – 60°C

• Ideal for underﬂ oor heating

• Average underﬂ oor heating circuit 35°C

• Fossil fuel boilers heat water to 80°C

• Flow temp in rads design temp approx 70°C

• Heat pumps can still be used with radiators

• Larger surface area to emit heat from lower temp water

1-2. Points to notice

1-2-1. Design (Radiator sizing)

• Careful consideration must be given to appropriate application of this technology to maximise its beneﬁ ts – it will not suit all properties, especially many retroﬁ ts

• Heat emitters may need to be larger

• Lower ﬂ ow temperatures maximise COP

• Various regulations apply to the design and installation of such systems

• Because the ﬂ ow temp. of heat pump is low compare to fossile fuel boiler, the temperature difference between the primary (ﬂ ow water) and secondary (room air) becomes little, it makes the heat emission little. To emit the same amount of heat energy, it is needed to select the radiator that has a larger surface area. Be especially careful of the surface area when you design the radiator.

1-2-2. Defrost

Note: Occasionally, vapor that is made by the defrost operation may seem as if smoke come up from the outdoor unit.

1-2-3. Water Pressure loss (for packaged type outdoor unit)

• Water pressure lose of the heat exchangers are as follows.

Be aware of the inﬂ uence when you design total pipng system.

Hex for PUHZ-W50VHA (ACH30-30Plates)

Secondary (Water - side) Flow rate (L/min) 5 10 15 20 25 30 Pressure Loss (kPa) 1.7 6.0 12.4 20.9 31.4 43.8

Pressure loss (kPa)

50 45 40 35 30 25 20 15 10

5 0

51015202530

Flow rate (L/min)

Hex for PUHZ-W85VHA (ACH30-40Plates)

Secondary (Water - side) Flow rate (L/min) 5 10 15 20 25 30 Pressure Loss (kPa) 1.0 3.6 7.5 12.5 18.8 26.2

Pressure loss (kPa)

30.0

25.0

20.0

15.0

10.0

5.0

0.0 51015202530

Flow rate (L/min)

Hex for PUHZ-W112, 140VHA / YHA (ACH50-50Plates)

Secondary (Water - side) Flow rate (L/min) 15 30 45 60 75 90 Pressure Loss (kPa) 1.3 4.9 10.9 19.3 29.9 42.8

Pressure loss (kPa)

45.0

40.0

35.0

30.0

25.0

20.0

15.0

10.0

5.0

0.0 15 30 45 60 75 90

Flow rate (L/min)

Heat pump unit_General information2

2-1. Line-up

2-1-1. Outdoor unit for Air to water (1) Packaged type: The Air to Water outdoor unit with a plate HEX (refrigerant-water) inside

Connectable models

Capacity

( HP )

2 PUHZ-W50VHA — — — 3 PUHZ-W85VHA — — — 4 — — — PUHZ-HW112YHA 5 — — PUHZ-HW140VHA PUHZ-HW140YHA

1-phase 3-phase 1-phase 3-phase

(2) Split type: The standard outdoor unit without a plate HEX (refrigerant-water) inside

Connectable models

Capacity

( HP )

2.5 PUHZ-RP60VHA3#1 — — — 3 PUHZ-RP71VHA3#1 — PUHZ-HRP71VHA(2) — 4 PUHZ-RP100VHA3#1 PUHZ-RP100YHA3#1 PUHZ-HRP100VHA(2) PUHZ-HRP100YHA(2) 5 PUHZ-RP125VHA2#2 PUHZ-RP125YHA2#2 — PUHZ-HRP125YHA(2) 6 PUHZ-RP140VHA2#2 PUHZ-RP140YHA2#2 — —

* Outdoor units (PUHZ-RP or PUHZ-P) other than the above-mentioned become possible by connecting TH5 ( 2-phase refrig-

erant temp. thermistor ) with the interface only for Air to Air use.

1-phase 3-phase 1-phase 3-phase

Packaged models ZUBADAN-Packaged models

Split Replace inverter models Split ZUBADAN models

2-1-2. Air to Air application

INTER FACE MODEL NAME PAC-IF011B-E / PAC-IF010-E

AUTO STEP *1

MANUAL STEP *2

MANUAL STEP MODE is New function of INTER FACE (Fixed capacity = Compressor frequency (Hz) ﬁ xed mode) .

*1: With(Auto-mode)+(SW2-6 is OFF)+(2phase thermistor), all A-control outdoor units are able to connect to PAC-IF010/ *2: With(Manual-mode)+(SW2-6 is OFF)+(2phase thermistor), from following RP type outdoor units are able to connect to

OUTDOOR UNIT 35 50 60 71 100 125 140 200 250

PUHZ-HRP — — — VHA(2) V/YHA(2) YHA(2) — — — PUHZ-RP VHA3 VHA3 VHA3 VHA3 V/YHA3 V/YHA2 V/YHA2 YHA2 YHA2 PUHZ-P — — — — VHA2 VHA2 VHA2 YHA YHA SUZ-KA VA VA VA VA — — — — — PUH-P — — — V/YHA V/YHA YHA YHA MYA MYA

OUTDOOR UNIT 35 50 60 71 100 125 140 200 250

PUHZ-HRP — — — VHA V(Y)HA YHA — — — PUHZ-RP VHA3 VHA3 VHA3 VHA3 V/YHA3 V/YHA2 V/YHA2 YHA2 YHA2

2 Phase (Gas/Liquid) pipe thermistor is required (TH5). Also, Interface P.C.B. SW2-6 need to be set "OFF (No LEV self control mode)" .

011B-E only for Air to Air use. PAC-IF010/011B-E only for Air to Air use.

PUHZ-RP35V, 50V, 60V, 71V,100V/Y,125V/Y,140V/YHA2 PUHZ-RP200Y, 250YHA

2-1-3. Reference manual

Outdoor unit Service

PUHZ-W50VHA PUHZ-W85VHA PUHZ-HW112YHA PUHZ-HW140VHA PUHZ-HW140YHA PUHZ-RP60VHA3#1 PUHZ-RP71VHA3#1 PUHZ-RP100VHA3#1 PUHZ-RP125VHA2#2 PUHZ-RP140VHA2#2 PUHZ-RP100YHA3#1 PUHZ-RP125YHA2#2 PUHZ-RP140YHA2#2 PUHZ-HRP71VHA(2) PUHZ-HRP100VHA(2) PUHZ-HRP100YHA(2) PUHZ-HRP125YHA(2)

manual

OCH439 OCB439

OC374 OC374

OCH425 OCB425

Parts catalog

I/F

FTC

2-2. Data

2-2-1. Packaged type Refer to each model's service manual.

2-2-2. Split [1]

Speciﬁ cations(Reference data(connect to plate heat exchanger))

Rating conditions

Nominal operating condition

Heating (A2/W35)

Outside air temperature (Dry-bulb) +2 Outside air temperature (Wet-bulb) +1 Water temperature (inlet/outlet) +30/+35

Heating (A7/W35)

Outside air temperature (Dry-bulb) +7 Outside air temperature (Wet-bulb) +6 Water temperature (inlet/outlet) +30/+35

Heating (A7/W45)

Outside air temperature (Dry-bulb) +7 Outside air temperature (Wet-bulb) +6 Water temperature (inlet/outlet) +40/+45

: :

Type Model name Parts catalog cased PAC-IF011B-E OCB427 PCB only PAC-IF010-E — cased PAC-IF021B-E OCB427 PCB only PAC-IF020-E —

(1) PUHZ-HRP • V/YHA2

Outdoor unit

Model name PUHZ-HRP71VHA2

Power supply (Phase, Voltage, Frequency)

Breaker size A 32

Nominal water ﬂ ow L/min 22.9

Heating (A2/W35)

Heating (A7/W35)

Heating (A7/W45)

Outdoor unit

Model name

Power supply (Phase, Voltage, Frequency)

Breaker size A 40 / 16

Nominal water ﬂ ow L/min 32.1 Heating (A2/W35)

Heating (A7/W35)

Heating (A7/W45)

Heating (A7/W55)

Outdoor unit

Model name PUHZ-HRP125YHA2

Power supply (Phase, Voltage, Frequency)

Breaker size A 16

Nominal water ﬂ ow L/min 40.1 Heating (A2/W35)

Heating (A7/W35)

Heating (A7/W45)

Capacity kW 8.00 COP 3.24 Power input 2.47 Capacity kW 8.00 COP 4.40 Power input 1.82 Capacity kW 8.00 COP 3.24 Power input 2.47

Capacity kW 11.20 COP 3.02 Power input 3.71 Capacity kW 11.20 COP 4.26 Power input 2.63 Capacity kW 11.20 COP 3.24 Power input 3.46 Capacity kW 11.20 COP 2.40 Power input 4.67

Capacity kW 14.00 COP 2.70 Power input 5.19 Capacity kW 14.00 COP 4.22 Power input 3.32 Capacity kW 14.00 COP 3.20 Power input 4.38

1[, 230V, 50Hz

PUHZ-HRP100VHA2 / PUHZ-HRP100YHA2

1[, 230V, 50Hz /

3[, 400V, 50Hz

Guaranteed operating range (Outdoor)

Heating Cooling

: :

-25 ~ +35

-5 ~ +46

Plate heat exchanger

ALFA LAVAL

ACH50

A: 50 mm B: 466 mm

Ref.IN

(Heating)

Water OUT

W: 112 mm H: 526 mm D: 130 mm 50 plates

Ref.OUT (Heating)

Water IN

Refrigerant pipng length from outdoor unit to heat exchanger (Water HEX): 5m

Maximum outlet water temperature

]

Maximum outlet water temptemperature [°C

-25 -20

-15 -10 -5 0 5 10

Ambient temperature [°C]

The performance might be decreased by the refrigerant pipng length, insulation of refrigerant pipng and heat exchanger (Water HEX).

(2) PUHZ-RP • VHA3/YHA3(2)

Outdoor unit

Model name PUHZ-RP60VHA3#1

Power supply (Phase, Voltage, Frequency)

Breaker size A 25

Nominal water ﬂ ow L/min 20.1 Heating

(A2/W35)

Heating (A7/W35)

Heating (A7/W45)

Outdoor unit

Model name PUHZ-RP71VHA3#1

Power supply (Phase, Voltage, Frequency)

Breaker size A 25

Nominal water ﬂ ow L/min 22.9 Heating

(A2/W35)

Heating (A7/W35)

Heating (A7/W45)

Capacity kW 6.80 COP 2.94 Power input kW 2.31 Capacity kW 7.00 COP 4.29 Power input kW 1.63 Capacity kW 7.00 COP 3.27 Power input kW 2.14

Capacity kW 7.50 COP 2.92 Power input kW 2.57 Capacity kW 8.00 COP 4.21 Power input kW 1.90 Capacity kW 8.00 COP 3.20 Power input kW 2.50

1[, 230V, 50Hz

Guaranteed operating range (Outdoor)

Heating Cooling : -5 ~ +46

-11 ~ +35

Plate heat exchanger

ALFA LAVAL

ACH50

A: 50 mm B: 466 mm

Ref.IN

(Heating)

Water OUT

W:112 mm H: 526 mm D: 82 mm 30 plates

Ref.OUT (Heating)

Water IN

Refrigerant pipng length from outdoor unit to heat exchanger (Water HEX): 5m

Maximum outlet water temperature

]

Maximum outlet water temptemperature [°C

-10 -5 0 5 10

Ambient temperature [°C]

The performance might be decreased by the refrigerant pipng length, insulation of refrigerant pipng and heat exchanger (Water HEX).

Outdoor unit

Model name

Power supply (Phase, Voltage, Frequency)

Breaker size A 32 / 16

Nominal water ﬂ ow L/min 32.1 Heating

(A2/W35)

Heating (A7/W35)

Heating (A7/W45)

Outdoor unit

Model name

Power supply (Phase, Voltage, Frequency)

Breaker size A 32/16

Nominal water ﬂ ow L/min 40.1 Heating

(A2/W35)

Heating (A7/W35)

Heating (A7/W45)

Outdoor unit

Model name

Power supply (Phase, Voltage, Frequency)

Breaker size A 40/16

Nominal water ﬂ ow L/min 45.9 Heating

(A2/W35)

Heating (A7/W35)

Heating (A7/W45)

Capacity kW 10.50 COP 2.90 Power input kW 3.62 Capacity kW 11.20 COP 4.21 Power input kW 2.66 Capacity kW 11.20 COP 3.20 Power input kW 3.50

Capacity kW 11.50 COP 2.70 Power input kW 4.26 Capacity kW 14.00 COP 4.15 Power input kW 3.37 Capacity kW 14.00 COP 3.10 Power input kW 4.51

Capacity kW 11.70 COP 2.69 Power input kW 4.35 Capacity kW 16.00 COP 3.90 Power input kW 4.10 Capacity kW 16.00 COP 3.00 Power input kW 5.34

PUHZ-RP100VHA3#1 / PUHZ-RP100YHA3#1

1[, 230V, 50Hz /

3[, 400V, 50Hz

PUHZ-RP125VHA2#2 / PUHZ-RP125YHA2#2

1[, 230V, 50Hz /

3[, 400V, 50Hz

PUHZ-RP140VHA2#2 / PUHZ-RP140YHA2#2

1[, 230V, 50Hz /

3[, 400V, 50Hz

Guaranteed operating range (Outdoor)

Heating Cooling

: :

-20 ~ +35

-5 ~ +46

Plate heat exchanger

ALFA LAVAL

ACH50

A: 50 mm B: 466 mm

Ref.IN

(Heating)

Water OUT

W:112 mm H: 526 mm D: 130 mm 50 plates

Ref.OUT (Heating)

Water IN

Refrigerant pipng length from outdoor unit to heat exchanger (Water HEX): 5m

Maximum outlet water temperature

]

Maximum outlet water temptemperature [°C

-20 -15

-10 -5 0 5 10

Ambient temperature [°C]

The performance might be decreased by the refrigerant pipng length, insulation of refrigerant pipng and heat exchanger (Water HEX).

[2]

Standard operation data <Split> Reference data (connect to Plate HEX)

(1) PUHZ-HRP • V/YHA2

Mode

Capacity W 7,100 8,000 10,000 11,200 12,500 14,000

Total

Input kW 2.20 1.82 3.67 2.61 4.80 3.50 Outdoor unit PUHZ-HRP71VHA2 Phase, Hz 1, 50 1/3, 50 3, 50

Voltage V 230 230 / 400 400

Electrical circuit

Current A 9.9 8.2 16.5/5.6 11.7/4.0 7.3 5.3 Discharge pressure MPa 2.4 2.0 2.6 2.1 2.8 2.3 Suction pressure MPa 0.8 0.7 0.8 0.7 0.8 0.7 Discharge temperature Condensing temperature Suction temperature Evaporating temperature Evaporator inlet temperature

Refrigerant circuit

Evaporator outlet temperature Condenser inlet temperature Condenser outlet temperature

Cooling

(A35/W7)

: : : : : : : :

70 60 78 63 84 70 42 35 46 36 47 39 12 6 11 4 10 3

525251 5—5—5—

5—5—5— —55—60—65 —33—31—30

Heating

(A7/W35)

ACH50-50 plates

Cooling

(A35/W7)

PUHZ-HRP100VHA2/ PUHZ-HRP100YHA2

Heating

(A7/W35)

Cooling

(A35/W7)

PUHZ-HRP125YHA2

Heating

(A7/W35)

Flow volume L/min 20.4 22.9 28.7 34.4 35.8 40.1

Water

Outlet water temperature

conditions

D.B.

Intake air temperature

Outdoor

conditions

The unit of pressure has been changed to MPa based on international SI system. The conversion factor is : 1(MPa)=10.2(kgf/F)

W.B.

735735735

35 7 35 7 35 7

24 6 24 6 24 6

(2) PUHZ-RP • VHA3/YHA3(2)

Mode

Capacity W 6,000 7,000 6,600 8,000 9,100 11,200

Total

Input kW 2.31 1.63 2.59 1.90 3.31 2.66 Outdoor unit PUHZ-RP60VHA3#1 PUHZ-RP71VHA3#1 Phase, Hz 1, 50 1, 50 1/3, 50

Voltage V 230 230 230 / 400 Current A 10.3 7.2 11.4 8.4 14.5 / 5.1 11.8 / 4.1

Electrical circuit

Discharge pressure MPa 2.7 2.1 2.7 2.2 2.6 2.1 Suction pressure MPa 0.8 0.7 0.8 0.7 0.8 0.7 Discharge temperature Condensing temperature Suction temperature Evaporating temperature Evaporator inlet temperature

Refrigerant circuit

Evaporator outlet temperature Condenser inlet temperature Condenser outlet temperature

: : : : : : : :

ACH50-30 plates ACH50-50 plates

Cooling

(A35/W7)

70 65 70 66 74 65 45 36 45 36 44 36

454265 515151 6—6—5—

5—5—5— —56—57—58 —34—33—35

Heating

(A7/W35)

Cooling

(A35/W7)

Heating

(A7/W35)

Cooling

(A35/W7)

PUHZ-RP100VHA3#1/ PUHZ-RP100YHA3#1

Heating

(A7/W35)

Flow volume L/min 17.2 20.1 18.9 22.9 26.1 32.1

Water

Outlet water temperature

conditions

D.B.

Intake air temperature

Outdoor

conditions

The unit of pressure has been changed to MPa based on international SI system. The conversion factor is : 1(MPa)=10.2(kgf/F)

W.B.

7 35 7 35 7 35

357357357

246246246

ACH50-50 plates

Mode

Capacity W 12,000 14,000 12,500 16,000 Input kW 5.10 3.37 5.38 4.10

Total

Outdoor unit Phase, Hz 1 / 3, 50 1 / 3, 50

circuit

Voltage V 230 / 400 230 / 400

Electrical

Current A 22.4 / 7.6 15.0 / 5.2 23.6 / 8.1 18.2 / 6.2 Discharge pressure MPa 2.8 2.1 2.8 2.2 Suction pressure MPa 0.7 0.7 0.7 0.7 Discharge temperature Condensing temperature Suction temperature Evaporating temperature Evaporator inlet temperature

Evaporator outlet temperature

Refrigerant circuit

Condenser inlet temperature Condenser outlet temperature

Flow volume L/min 34.4 40.1 35.8 45.9

: : : : : : : :

Cooling

(A35/W7)

PUHZ-RP125VHA2#2/ PUHZ-RP125YHA2#2

80 69 81 67 46 36 46 36

3431 5-15-1 6—6—

5—5— —63—61 —35—34

Heating

(A7/W35)

Cooling

(A35/W7)

PUHZ-RP140VHA2#2/ PUHZ-RP140YHA2#2

Heating

(A7/W35)

Water

Outlet water temperature

conditions

D.B.

Intake air temperature

Outdoor

conditions

The unit of pressure has been changed to MPa based on international SI system. The conversion factor is : 1(MPa)=10.2(kgf/F)

W.B.

735735

357357

246246

[4]

Capacity correction curves (Refrigerant pipng length)

Cooling and heating capacity is lowered according to pipe length. Capacity can be obtained by referring to the capacity curves below.

Cooling

100

Heating

Capacity ratio [%]

Note: The permitted pipe length is up to 55m for RP 60, 71 model. The permitted pipe length is up to 80m for HRP71 and 100~ 140 model.

5 101520253035404550556065707580

Corrected pipe length [m]

[5]

Refrigerant circuit diagram (Representative pattern)

PUHZ-HRP

Water OUT

Plate HEX

Water IN

•

Thermistor TH1 (Outlet water)

Thermistor TH2 (Liquid pipe)

V/YHA2 + Plate HEX (ACH50) + FTC (TH1/2)

Ball valve

Refrigerant GAS pipe connection (5/8 inch)

Linear expansion valve B

Refrigerant LIQUID pipe connection (3/8 inch)

Stop valve (with service port)

Strainer #50

Charge plug (Low pressure)

Strainer #100

Solenoid valve (Four-way valve)

Power receiver

Linear expansion valve C

Low pressure switch 63L

Strainer #100

Cooling 60 models

P-sensor

Charge plug (High pressure)

Muffler

Strainer #100

Compressor

Heat exchanger

High pressure switch 63H

Thermistor TH32 (Outdoor pipe)

Thermistor TH4 (Discharge)

Linear expansion valve A

Injection port

Heat interchange circuit

Heating

Cooling 71 model

Cooling 100 model

Cooling 125 model

Cooling 140 model

Thermistor TH7 (Outdoor)

Thermistor TH6 (Outdoor 2-phase pipe)

Thermistor TH3 (Outdoor pipe)

Distributor

Thermistor TH33

Strainer #100

Refrigerant flow in cooling Refrigerant flow in heating

(Outdoor pipe)

Restrictor valve

Bypass valve

Replace filter

Strainer #100

[6]

Notiﬁ cation to design/select HEX (Refrigerant - Water)

• Speciﬁ cations of AHU and compatibility with regulations must be conﬁ rmed by your company.

• Selection of an apporopriate AHU (with appropriate speciﬁ cations to match those of units connected to the AHU such as conﬁ guration, dimension, life-span, vibration, noise level, or features) must be made by your company.

• Mitsubishi Electric shall not be liable for any damage to the entire system or the AHU main body caused by connected AHU with wrong speciﬁ cation or wrong usage of AHU.

• Mitsubishi Electric shall not be liable for any damage to the outdoor units caused by AHU damage.

( AHU : hydro box or refrigerant - water HEX )

Heat exchanger

(1) Withstanding pressure

Designed pressure of outdoor unit is 4.15 MPa. Following must be satisﬁ ed for burst pressure of connecting application. Burst pressure : More than 12.45 MPa (3 times more than designed pressure)

(2) Performance

Secure the heat exchanger capacity which meets the following conditions. If the conditions are not met, it may result in malfunction caused by the protection operation or the outdoor unit may be turned off due to the operation of protection system.

1. Evaporate temperature is more than 4: in max. frequency operation under *1 the cooling rated conditions.

2. In case of hot water supply, condense temperature is less than 58: in max. frequency operation with the outside temperature 7:D.B./6:W.B. *1. Outdoor: 35:D.B./24:W.B.

(3) Heat exchanger internal capacity

Heat exchanger internal capacity must be within the capacity range shown below. If the heat exchanger below the minimum capacity is connected, it may result in the back ﬂ ow of liquid or the failure of the compressor. If the heat exchanger above the maximum capacity is connected, it may result in the deﬁ ciency in performance due to lack of refrigerant or overheating of the compressor. Minimum capacity : 10 х Model capacity [J] / Maximum capacity : 30 х Model capacity [J] e.g. When connecting to PUHZ-HRP100 VHA2

Minimum capacity : 10 х 100 =1000

Maximum capacity : 30 х 100 =3000 Model capacity 60(2.5HP) 71(3HP) 100(4HP) 125(5HP) 140(6HP) Maximum capacity [J] 1800 2130 3000 3750 4200 Minimum capacity [J] 600 710 1000 1250 1400

J J

Warranty for SPILIT solution

(4) Contamination maintenance

1. Wash the inside of heat exchanger to keep it clean. Be sure to rince not to leave ﬂ ux. Do not use chlorine detergent for wash.

2. Be sure that the amount of contamination per unit cubic content of heat transfer pipe is less than the following amount. Example) In case of [ 9.52mm Residual water : 0.6M/C, Residual oil : 0.5M/C, Solid foreign object : 1.8M/

Note:

• Install the hydraulic ﬁ lter at the water intake.

• Use the inlet water of higher than 5 ˚C and lower than 55 ˚C.

• The water in a system should be clean and with pH value of 6.5-8.0.

• The followings are the maximum values; Calcium : 100mg/L Chlorine : 100mg/L Iron/manganese : 0.5mg/L

• Refrigerant pipe diameter from outdoor unit to refrigerant-water HEX (Only for SPLIT type) Use the pipe with same diameter size as the refrigerant pipe connection diameter of outdoor unit.(Refer to outdoor unit installation manual.)

• Make sure to perform the frozen prevention measure for water pipe system.(Water piping insulation, back-up pump system, using of a certain % ethylene glycol instead of normal water)

[Reference]

TB142 has for “Forced Comp. OFF” function as the EXTERNAL INPUT(Contact signal). To input the abnormal signal of water pump or the abnormal lowering of water ﬂ ow amount with non-voltage contact signal makes the outdoor unit stop forcibly. For details, refer to each part of I/F or FTC on this manual.

• The water velocity in pipes should be kept within certain limits of material to avoid erosion,corrosion and excessive noise generation. Be aware, and take care of , that local velocities in small pipes, bends and similar obstructions can exceed the values of previous page.

e.g.) Copper : 1.5m/s

Warning

• Use clean enough water which meets water quality standards. The deterioration of water quality may result in the system breakdown or the water leakage.

• Never use anything other than water as a medium. It may cause a ﬁ re or an explosion.

• Do not use heated or cooled water that is produced by the air to water heat pump directly for drinking or cooking. There is a risk to damage your health. There is also a risk that installing the water heat exchanger may corrode if the necessary water quality for air to water heat pump system cannot be maintained. If you wish to use the heated or cooled water from the heated pump for these purposes, take measure such as to the second heat exchanger within the water piping system.

Reference data

Required speciﬁ cation and performance of Plate Heat Exchanger.

Required speciﬁ cation

Refrigerant type R410A

Refrigerant side

Water side

Burst pressure 12.45MPa (4.15MPa ×3) or more Frozen performance Satisfy an initial performance since 5 times or more of deep freezing. Heat cycle 70,000 times or more…Temperature difference: about 50K Endurance pressure 72,000 times or more…Pressure difference: 3.3MPa (0 ↔ 3.3MPa)

Normal (designed) pressure 4.15MPa Operating temperature -20~100 Refrigerant type Clean water Normal (designed) pressure 1.5MPa Operating temperature -20~90: (No freezing)

Required performance

< For 2.5~3 HP >

Required performance of Plate Heat Exchanger kW 9.0 9.0

Inlet temperature degC 75 100 Gas pipe: [12.7mm

Refrigerant side (R410A)

Water side

* For heating mode, used at counter ﬂ ow direction between refrigerant ﬂ ow and water one. < For 4~6 HP >

Required performance of Plate Heat Exchanger kW 14.0 14.0

Refrigerant side (R410A)

Water side

* For heating mode, used at counter ﬂ ow direction between refrigerant ﬂ ow and water one.

Condensing temperature degC 39.5 63.5 Liquid pipe: [9.52mm Subcool degC 2 2 Max. pressure loss kPa 50 50 Inlet temperature degC 30 55 Inlet / outlet pipe: [28.6mm Outlet temperature degC 35 60 Water ﬂ ow volume L/min 25.8 25.8 Max. pressure loss kPa 50 50

Inlet temperature degC 75 100 Gas pipe: [15.88mm Condensing temperature degC 39.5 63.5 Liquid pipe: [9.52mm Subcool degC 2 2 Max. pressure loss kPa 50 50 Inlet temperature degC 30 55 Inlet / outlet pipe: over [28.6mm Outlet temperature degC 35 60 Water ﬂ ow volume L/min 40.1 40.1 Max. pressure loss kPa 50 50

System design3

3-1. System type

* with step I/F by digital/analog signals * with FTC simple/basic/analog temp.

Application Capacity control For Model name Type

Local controller

Air to Air

I/F

Local controller

Air to Water

FTC

* PAC-IF010-E, PAC-IF020-E : PCB 10pcs/set

3-2. Combination of remote controller

Remote controller model Connected object Connectability PAR-21MAA (Standard) I/F

PAR-W21MAA (Only for FTC) I/F NG (Continue to indicate “PLEASE WAIT”)

PAR-20MAA (Standard) I/F NG (Continue to indicate “PLEASE WAIT”) (Old ) FTC NG (Continue to indicate “PLEASE WAIT”)

Manufacturer PAC-IF010-E * Individual installer PAC-IF011B-E Cased Manufacturer PAC-IF010-E * PCB only Individual installer PAC-IF011B-E Cased

STEP I/F

Manufacturer PAC-IF010-E * PCB only Individual installer PAC-IF011B-E Cased Manufacturer PAC-IF020-E * Individual installer PAC-IF021B-E Cased with R/C

FTC

FTC NG (Continue to indicate “PLEASE WAIT”)

FTC OK

PCB only

3-3. Flow chart to check system type

ATW

application

start

Variable capacity request signals for Heat Pump is calculated...

DIGITAL STEP SYSTEM

IF PCB System controller

By local controller (your side)

By Non-voltage Contact signals

ON/OF

Operation mode

-Heating

-Cooling

capacity signals protocol is...

digital step (non-voltage contact)

Your system is DIGITAL STEP SYSTEM (IF)

(locally supplied)

End user interface

Analog (0-10v/4-20mA…)

Your system is ANALOG STEP SYSTEM (IF)

ANALOG STEP SYSTEM

By Non-voltage

IF PCB System

Contact signals

ON/OF

Operation mode

-Heating

-Cooling

controller (locally supplied)

End user interface

By our FTC

Remote

for maintenance

- to check error code

Capacity steps

By Non-voltage Contact signals

1515

Capacity

Remote

For maintenance purpose

- analog signal parameters

steps By Analog signal

4-20mA / 1-5V / 0-10V

Continued to next page.

FTC

By our FTC

Heat Pump switch ON/OFF and the operation mode change is done…

By remote controller

Your system is

SIMPLE SYSTEM.

(FTC)

By external signals from local controller (non-voltage contact signals)

Your system is

‘Target flow temperature’ is set…

By remote controller

BASIC SYSTEM.

(FTC)

By external signals from local controller (Analog signal:4-20mA/ 1-5V/ 0-10V)

Your system is ANALOG TEMP. SYSTEM.

(FTC)

SIMPLE SYSTEM BASIC SYSTEM

By Non-voltage Contact signals

FTC PCB BOX FT C PCB BOX FTC PCB BOX

ON/OFF

Operation mode

Target flow temp.

Remote controller

End user interface

Target flow temp.

Remote controller

Topreset

- target temp. for eachmode

- target temp. parameters

ON/OFF

Operation mode

- Heating

- Heating ECO

- Hot water

- Anti freeze

- Cooling

System controller (locally supplied)

End user interface

ANALOG TEMP. SYSTEM

Remote controller

Topreset

- analog signal parameters

By Non-voltage Contact signals

ON/OFF

Operation mode

- Heating +

- Cooling

Target flow temp. Analog signal

4-20mA/1-5V/0-10V

+In this system,

• Heating ECO mode of FTC is not available.

• It is NOT necessary to switch operation mode to realize Hot water mode, Anti freeze mode and Heating ECO mode. Simply change the target temp. by Analog signal.

System controller

(locally supplied)

End user interface

ATA

application

start

Variable capacity request signals for Heat Pump is calculated...

By local controller (your side)

capacity signals protocol is...

Analog (0-10v/4-20mA…)

AUTO STEP SYSTEM

IF PCB

ON/OFF

Operation mode

Target retern air temp.

Remote controller

End user interface

By our IF

Your system is AUTO STEP SYSTEM (IF)

DIGITAL STEP SYSTEM

By Non-voltage Contact signals

IF PCB

Remote

controller

for maintenance

- to check error code

ON/OF

Operation mode

-Heating

-Cooling

Capacity steps

By Non-voltage Contact signals

System controller (locally suppliied)

End user interface

digital step (non-voltage contact)

Your system is DIGITAL STEP SYSTEM (IF)

ANALOG STEP SYSTEM

By Non-voltage Contact signals

IF PCB

Remote controller

For maintenance purpose

- analog signal

Your systemis ANALOG STEP SYSTEM (IF)

System controller

ON/OF

Operation mode

-Heating

-Cooling

Capacity steps

By Analog signal 4-20mA / 1-5V / 0-10V

(locally suppliied)

End user interface

TH1

OFF/ONOFF/ON

OFF/ON

TB61

TH2

214

TB62

Adjustable resistor

4-20mA/1-5V/0-10V

Wired Remote Controller

(For Maintenance)

11 13

12 14

TB142 TB141

(External Output)

(External Input)

S1 S2 S3

TB6

DC311~

339V

FUSE

SW6

LED1

RECTIFICATION

LED2

LED3

LED4

LED5

CNS2

(RED)

Interface controller

TO OUTDOOR UNIT

DSA

SYMBOL

INTERFACE CONTROLLER

TB6

TB141

TB142

TB62

TB61

LED1

LED2~5

FUSE

SW1

SW2

SW3

SW6

ZNR01,02

DSA

TH1

TH2

TH5

NAME

TERMINAL BLOCK(INTERFACE/OUTDOOR CONNECTING LINE)

TERMINAL BLOCK (External Output)

TERMINAL BLOCK (External Input REMOTE SWITCH)

TERMINAL BLOCK (External Input)

THERMISTOR(TARGET, PIPE)

POWER SUPPLY(I/F)

OPERATION INDICATION

FUSE(T3.15AL250V)

SWITCH(Input selection of inverter capacity setting) *See table 4.

SWITCH(Function switch)*See table 5 and 6.

SWITCH(LED2~5 Display setting)

SWITCH(4-20mA/1-5V/0-10V switch)*See table 4.

VARISTOR

SURGE ABSORBER

RELAY

TARGET TEMP. THERMISTOR

/15k, 25/5.2k DETECT)

PIPE TEMP . THERMIST OR/LIQUID

/15k, 25/5.2k DETECT)

PIPE TEMP . THERMIST OR/2-PHASE

/15k, 25/5.2k DETECT)

TB6

TO OUTDOOR UNIT

POWER SUPPLY

~/N

21354678

TB141

11 10

121314

ZNR01

ZNR02

21354678

TB142

I/F

X1 X2 X3 X4 X5 X6

Item

Operation Output

Error Output

Comp. Output

Defrost Output

Mode(Cool) Output

Mode(Heat) Output

(OUT1)

(OUT2)

(OUT3)

(OUT4)

(OUT5)

(OUT6)

(OUT7)

X1X2X3X4X5

ErrorONONONON

OFF

Normal

OFF(Comp. OFF)

OFF

(Comp. ON)

(Defrosting)

(Cooling)

(Heating)

TB141

1-2

3-4

5-6

7-8

9-10

11-12

13-14

Refer to table 1.

table 1

*1(Fig.1)

Refer to table 2, 3.

Remark

SW2-1, SW2-2: ON is valid.

Forced Comp. OFF

Heating

OFF

Normal

Cooling

Item

Forced Comp. OFF

Fixed operation mode

TB142

1-2 (IN1)

3-4 (IN2)

table 2

Step for capacity setting

TB142

10-11

(COM-IN5)

TB142

10-12

(COM-IN6)

TB142

10-13

(COM-IN7)

TB142

10-14

(COM-IN8)

Remark

Auto mode

OFF

Fixed capacity

(Hz fixed)

mode

table 3

TB142

I/F

1110121314

At site

4bit8 switch

OFF

~AUTO

TB142

I/F

At site

Step1

Step4

Step7

AUTO

SW1-1

OFFONONONOFFONOFF

SW2-3

OFFONOFFONOFFONOFF

OFFONOFFONOFFONOFFONOFF

OFF

OFFONON

OFF

OFFONON

OFF

OFFONONONON

OFF

OFF 0%

Step1 10%

Step2 20%

Step3 30%

Step4 50%

Step5 70%

Step6 80%

Step7 100%

Auto

OFF 0%

Step1 10%

Step4 50%

Step7 100%

Auto

[OFF]

[ON]

[OFF]

[ON]

SW2-4

OFF

OFFONON

OFF

OFFONON

SW2-5

OFF

OFFONONONON

Details

Not fixed (Remote controller setting)

Cooling 19 ˚C/Heating 17 ˚C FIX

20 ˚C FIX

22 ˚C FIX

24 ˚C FIX

26 ˚C FIX

28 ˚C FIX

Cooling 30 ˚C / Heating 28 ˚C FIX

SW1-2

OFF

OFFONON

OFF

SW2-1

OFFONOFF

SW2-2

OFF

OFFONON

SW1-3

OFF

OFFONON

SW6-1

OFF

OFFONOFF

OFF

SW6-2

OFF

OFFONON

OFF

Input

TypeA

(4bit-8 setting)

TypeB

(1bit-1 setting)

4-20mA

1-5V

0-10V

0-10k

No input(Auto mode)

Step for capacity setting

OFF/Step 1/Step 2/

...

/Step 7/Auto

OFF/Step 1/Step 4/Step 7/Auto

OFF/Step 1/Step 2/

...

/Step 7

OFF/Step 1/Step 2/

...

/Step 7

OFF/Step 1/Step 2/

...

/Step 7

OFF/Step 1/Step 2/

...

/Step 7/Auto

Only Auto mode

table 4 SW1, SW6 : Input selection of inverter capacity setting

table 5 SW2-1/2-2 : Fixed operation mode

Details

Not FIX

(Depending on Remote controller setting)

[Cooling]FIX

[Heating]FIX

External input(Depending on TB142-3,4)

1. SymboIs used in wiring diagram are, : Connector, : Terminal block.

2. Interface controller and outdoor connecting wires have poIarities, make sure to match

terminal numbers(S1, S2, S3) for correct wirings.

3. Since the outdoor side electric wiring may change, be sure to check the outdoor unit

electric wiring diagram for servicing.

4. This diagram shows the wiring of Interface controller and outdoor connecting wires.(specification of 230V),

adopting superimposed system of power and signal.

*1 : When work to supply power separately to Interface controller and outdoor units was applied, refer to Fig 1.

*2 : Remove the short-circuited connector CNS2 when work to supply power separately to

Interface controller and outdoor units was applied.

ONOFF

TypeA TypeB

At site

*2 Remove the

short-circuited connector

CNS2.

table 6 SW2-3/2-4/2-5 : Fixed set temperature [For Auto mode]

t°

SW3SW2SW1

1110

{

SW2-6

OFF

table 7 SW2-6 : setting TH5

Details

Connect TH5

Not connect TH5 (Initial setting)

TH5

t°

(

3-4. Wiring diagram

(1) PAC-IF011B-E(I/F)

TH1

OFF/ONOFF/ON

OFF/ON

TB61

*6TH2

214

TB62

4-20mA/1-5V/0-10V

WiredRemoteController

10 

1113

12 14

TB142 TB141



(ExternalOutput)

(ExternalInput)

S1 S2 S3

TB6

DC311〜

339V

FUSE

SW6

LED1

RECTIFICATION

LED2

LED3

LED4

LED5

CNS2

(RED)

FLOWTEMP.CONTROLLER(FTC)

TOOUTDOORUNIT

DSA

SYMBOL

FLOWTEMP.CONTROLLER(FTC)

TB6

TB141

TB142

TB62

TB61

LED1

LED2

LED3

LED4,5

FUSE

SW1

SW2

SW3

SW6

ZNR01,02

DSA

X1〜X7

TH1

TH2

NAME

TERMINALBLOCK(FTC/OUTDOORUNITCONNECTINGLINE)

TERMINALBLOCK(ExternalOutput)

TERMINALBLOCK(ExternalInputContactsignal)

TERMINALBLOCK(ExternalInputAnalogsignal)

TERMINALBLOCK(Thermistor)

POWERSUPPLY(FTC)

POWERSUPPLY(WIREDREMOTECONTROLLER)

TRANSMISSION(FTC-OUTDOORUNIT)

NOTINUSE

FUSE(T3.15AL250V)

SWITCH*SeeTable3,4and6.

SWITCH

SWITCH*SeeTable5.

SWITCH(4-20mA/1-5V/0-10Vswitch)*SeeTable3.

VARISTOR

SURGEABSORBER

RELAY

ACTUALFLOWWATERTEMP.THERMISTOR(Waterpiping)

(0℃/15kΩ,25℃/5.2kΩDETECT)

PIPETEMP.THERMISTOR/LIQUID(Refrigerantpiping)

(0℃/15kΩ,25℃/5.2kΩDETECT)

TB6

TOOUTDOORUNIT

POWERSUPPLY

〜/N

21354678

TB141

11 10

12 13 14

ZNR01

ZNR02

X1X2X3X4X5X X76



OFF

Normal

ForcedComp.OFF

OFF

(IN1)

(IN2)

(IN3)

(IN4)

(COM-IN5)

(COM-IN6)

(COM-IN7)

(COM-IN8)

Remark

Notinuse

SW3-6=OFF

SW3-6=ON

ON

ForcedComp.OFF

Normal

Cooling

Heating

HeatingECO

HotWater

Anti-Freeze

TB142

1-2

3-4

5-6

7-8

10-11

10-12

10-13

10-14



X1X2X3X4X5X6X7

(OUT1)

(OUT2)

(OUT3)

(OUT4)

(OUT5)

(OUT6)

(OUT7)

OFF

Normal

OFF



ONONErrorONONONON



Item

OperationOutput

ErrorOutput

Comp.Output

DefrostOutput

Mode(Cooling)Output

Mode(Heating/HeatingECO/

HotWater/Anti-Freeze)Output



TB141

1-2

3-4

5-6

7-8

9-10

11-12

13-14

RefertoTable2.

Table1Externalinput(Contactsignal)

Table2Externaloutput

*1(Fig.1)

Referto

Table1.

SW1-6

OFF

OFFONONONON

SW1-7

OFFONOFFONOFFONOFF

SW1-8

OFF

OFFONON

OFF

OFFONON

Heating/HeatingECO/HotWater

Upper55℃/lower20℃

Upper60℃/lower20℃*7

Upper50℃/lower20℃



Anti-Freeze

Upper45℃/lower5℃



Cooling

Upper25℃/lower5℃



Temperaturetable

SW2-1〜8,SW3-1〜3

Table*8Table*8



SW3-6

OFF

TB142No.5-6input

OFF(open)

ON(short)

OFF(open)

ON(short)

Table3SW1，SW6:Inputselection

Table5SW3-6LogicofForcedcomp.OFFexternalsignal(TB1425-6)

*7.DontusethissettingwhenusingtheSPLITtypeoutdoorunit.

*8.Refertoinstallationmanual.



Item

Normal

ForcedComp.OFF

Normal

SW1-3

OFF

Operationmode

Heating/HeatingECO/Hotwater/Anti-freeze/Cooling

Heating/HeatingECO/Hotwater/Anti-freeze

Table4SW1-3ProhibitionofCoolingmode

*3.0〜2mA:STOP

*4.0〜0.5V:STOP

*5.Thesignalofexternalinputispriortothesignalofwiredremotecontroller.

*6.SPLITtype:thestandardoutdoorunitwithoutaplateHEX(refrigerant-waterHEX)inside.

 PACKAGEDtype:theAirtowateroutdoorunitwithaplateHEX(refrigerant-waterHEX)inside.

 (ItisnotnecessarytoconnecttoTH2.)



1.SymboIsusedinwiringdiagramare, :Connector, :Terminalblock.

2.FTCandoutdoorunitconnectingwireshavepoIarities,makesuretomatchterminalnumbers(S1,

S2,S3)forcorrectwirings.

3.Sincetheoutdoorunitsideelectricwiringmaychange,besuretochecktheoutdoorunitelectric

wiringdiagramforservicing.

4.ThisdiagramshowsthewiringofFTCandoutdoorunitconnectingwires(speciﬁcationof230V),

adoptingsuperimposedsystemofpowerandsignal.

*1:WhenworktosupplypowerseparatelytoFTCandoutdoorunitwasapplied,refertoFig1.

*2:Removetheshort-circuitedconnectorCNS2whenworktosupplypowerseparatelytoFTC

andoutdoorunitwasapplied.

*2Removethe

short-circuited

connectorCNS2.

Table6SW1-6,7,8 Settemperaturerange

 SW1-6=OFF Settemperaturerangewithwiredremotecontroller

 SW1-6=ON SettemperaturetablewithDIPswitchofFTC

BH79L347H01

t。t

。

SW3SW2SW1

{

TB142

FTC

Atsite

HeatingECO

→

Anti-Freeze

→

HotWater

→

Heating

→

65789

213

ForcedComp.OFF→

Cooling→

ON/OFFInput

Externalinput

(non-voltagecontact)

Externalinput

(non-voltagecontact)

Externalinputor

4-20mA*3

Externalinputor

1-5V*4

Externalinput

Externalinputand

Wiredremotecontroller

Externalinputand

Wiredremotecontroller

ChangemodeInput

Externalinput

(non-voltagecontact)

Externalinput

(non-voltagecontact)

Externalinput

(non-voltagecontact)

Externalinput

(non-voltagecontact)

Externalinput

(non-voltagecontact)

Externalinputand

Wiredremotecontroller

Externalinputand

Wiredremotecontroller

ChangeTEMP. Input

DIPswitchonPCB

SW2-1〜8,SW3-1〜3

Wiredremotecontroller

4-20mA

1-5V

0-10V

DIPswitchonPCB

SW2-1〜8,SW3-1〜3

Wiredremotecontroller

Outdoorunit*6

SPLITtype

PACKAGEDtype

SPLITtype

PACKAGEDtype

SPLITtype

PACKAGEDtype

SPLITtype

PACKAGEDtype

SPLITtype

PACKAGEDtype

SPLITtype

PACKAGEDtype

SPLITtype

PACKAGEDtype

SPLITtype

PACKAGEDtype

SW1-1ONONONON

OFF

OFFONON

OFF

SW1-2

OFF

OFFONONONONONON

OFF

SW1-5

OFFONOFFONOFFONOFFONOFFONOFFONOFFONOFF

SW1-6ONON

OFF

OFFONON

OFF

SW6-1

OFF

OFFONON

OFF

SW6-2

OFF

OFFONONONON

OFF

Temperaturerangewithwiredremotecontroller

(

(2) PAC-IF021B-E(FTC)

3-5. PCB diagram(Test point )

(1) PAC-IF011B-E, PAC-IF010-E

TB61 1-2

Thermistor (TH1)

TB61 3-4

Thermistor (TH2)

CN21

Thermistor (TH2)

TB61 5-6

Thermistor (TH5)

CN29

Thermistor (TH5)

CN2P

Adjustable resistor

TB62 1-2

Adjustable resistor

CN2A

4-20mA/1-5V/0-10V

TB62 3-4

4-20mA/1-5V/0-10V

CN22

Wired remote controller

TB62 5-6

Wired remote controller

CN20

Thermistor (TH1)

LED2~5 LED1

Power supply

CN82

External input Remote switch

TB142

External input Remote switch

CN53

External input Remote switch

PAC-IF011B-E PAC-IF010-E

TB6 TB141 TB142 TB61 TB62 CNX1~CNX6 — CN20 CN21 CN29 CN2P CN2A CN22

: mounting

—

: unmounting

CNX2

Error Output

CNX1

Operation Output

TB141

External output

CNX4

Defrost Output

CNX3

Comp.Output

CNX5

Mode(Cool)Output

ΟΟ Ο

—

ΟΟ ΟΟ ΟΟ

Ο ΟΟ ΟΟ ΟΟ ΟΟ ΟΟ ΟΟ

CNX6

Mode(Heat)Output

TB6

Interface/outdoor connecting

FUSE

T3,15AL250V

(2) PAC-IF021B-E(FTC), PAC-IF020-E

CN20

Thermistor (TH1)

TB61 1-2

Thermistor (TH1)

TB61 3-4

Thermistor (TH2)

CN21

Thermistor (TH2)

TB62 3-4

4-20mA/1-5V/0-10V

CN2A

4-20mA/1-5V/0-10V

TB62 5-6

Wired remote controller

CN22

Wired remote controller

LED2,3

TB6

FTC/outdoor unit connecting

CN82

External input

TB142

External input

CN53

External input

PAC-IF021B-E PAC-IF020-E

TB6 TB141 TB142 TB61 TB62 CNX1~CNX6 — CN20 CN21 CN29 CN2P CN2A CN22

: mounting

—

: unmounting

CNX2

Error Output

CNX1

Operation Output

CNX4

Defrost Output

CNX3

Comp.Output

TB141

External output

CNX5

Mode(Cooling)Output

ΟΟ Ο

—

ΟΟ ΟΟ ΟΟ

Ο ΟΟ ΟΟ ΟΟ ΟΟ ΟΟ ΟΟ

CNX6

Mode(Heating/Heating ECO/Hot Water/Anti-Freeze)Output

FUSE

T3,15AL250V

3-6. Speciﬁ cation of connectors

Please connect wiring with either of the terminal bed or the connector. Parts on the PCB are different depending on the model.

PCB ONLY Cased PAC-IF010-E PAC-IF020-E Parts on PCB Parts on PCB

TERMINAL BED CONNECTOR TERMINAL BED CONNECTOR TB6 TB6

CNX1 CNX2 CNX3 CNX4 CNX5 CNX6

TB142 CN82

CN53

TB61 CN20

CN21 CN29

TB62 CN2P

CN2A CN22

The following terminal bed and the connector is the same signals, meaning.

PAC-IF011B-E PAC-IF021B-E

TB141

TB142

TB61 CN20

CN21 CN29

TB62 CN2P

CN2A CN22

TB6

TERMINAL BED TB6-L — —

TB6-N — — TB6-PE — — TB6-S1 — — TB6-S2 — — TB6-S3 — —

Speciﬁ cation of connectors (Manufacture: J.S.T. Mfg. Co., Ltd.)

CONNECTOR NAME HOUSING CNX1 ~ 6 VHR-3N CN82 XAP-08V-1

CN53 XAP-05V-1 CN20,21,29,2P,2A,22 XAP-02V-1

Contact pin : According to the wiring size select the correct

contact pin by yourself.

CONNECTOR NAME PIN No.

TB141, TB142, TB61

TERMINAL BED TB141-1,2 CNX1 1,3pin

TB141-3,4 CNX2 1,3pin TB141-5,6 CNX3 1,3pin TB141-7,8 CNX4 1,3pin TB141-9,10 CNX5 1,3pin TB141-11,12 CNX6 1,3pin TB142-1 CN82 1pin TB142-2 CN82 2pin TB142-3 CN82 3pin TB142-4 CN82 4pin TB142-5 CN82 5pin TB142-6 CN82 6pin TB142-7 CN82 7pin TB142-8 CN82 8pin TB142-9 CN53 5pin TB142-10 CN53 5pin TB142-11 CN53 1pin TB142-12 CN53 2pin TB142-13 CN53 3pin TB142-14 CN53 4pin TB61-1,2 CN20 1,2pin TB61-3,4 CN21 1,2pin TB61-5,6 CN29 1,2pin TB62-1,2 CN2P 1,2pin TB62-3,4 CN2A 1,2pin TB62-5,6 CN22 1,2pin

CONNECTOR NAME PIN No.

Interface (I/F)4

CONTENTS

1. System outline ..................................................................................24

2. System structure ...............................................................................24

3. Power supply ....................................................................................28

4. Connecting thermistor.......................................................................30

5. Interface controller switch setting .....................................................31

6. Input speciﬁ cations ...........................................................................32

7. Output speciﬁ cations ........................................................................33

8. LED display detail .............................................................................34

9. Maintenance information ..................................................................35

10. Central control ..................................................................................52

11. Outlines and dimensions ..................................................................53

12. Troubleshooting ................................................................................ 54

Notes on system controller side in I/F connection system (1)Please do not transmit “STEP 0” during defrost operation.

Defrost operation might be interrupted, and frost remain. (Please demand the planned capacity step even when the system controller receives defrost signal from the heat pump (outdoor unit)).

(2)Please do not transmit “STEP 0” when the outdoor unit(H/P) is abnormal.

Abnormal detection data is reset, and an Abnormal point cannot be conﬁ rmed.

2323

1. System outline

With PAC-IF011B-E, local units can be connected with the outdoor units manufactured by MITSUBISHI ELECTRIC. The commands, such as Remote switch, Varistor, 4-20mA/1-5V/0-10V and etc., allow the inverter outdoor unit to operate, to stop and to switch capacity. By outputting the operation state, the interface can be connected with the local unit.Also, the interface can be connected with wired remote controller for maintenance so that the maintenance information is obtained. Only the outdoor units with self-controlled S/W are connectable.

2. System structure

System structure(1)

Outdoor unit capacity switch

Remote switch

Capacity switch of outdoor unit according to the remote switch

When auto stop being set, the difference between room temperature and set temperature of interface, and the pipe temperature switch the capacity of outdoor unit automatically.

Wired remote controller (Auto step mode only)

The difference between room temperature and set temperature of wired remote controller, and the pipe temperature switch the capacity of outdoor unit automatically.

As with the remote controller for air conditioner, the interface performs ON/OFF operation, and changes operation mode (cooling, heating ,fan) and set temperature.

Adjustable resistor(0-10k)

Capacity switch of outdoor unit according to the adjustable resistor

System diagram Power supply specifications

Intake temp. Liquid pipe temp.

Local unit

Local controller

Intake temp. Liquid pipe temp.

Local unit

Local controller

Intake temp. Liquid pipe temp.

Local unit

Wired remote controller

Intake temp. Liquid pipe temp.

Local unit

Wired remote controller

Intake temp. Liquid pipe temp.

Local unit

Local controller Adjustable resistor

Interface controller

Remote switch

Power line

Interface controller

Remote switch

Interface controller

PAR-21MAA

Power line

Interface controller

PAR-21MAA

Interface controller

A transmission line/Power line

Power line

Outdoor unit

A transmission line/Power line

Power line

Outdoor unit

A transmission line/Power line

Power line

Outdoor unit

A transmission line/Power line

Power line

Outdoor unit

A transmission line/Power line

Power line

Outdoor unit

Power supplied from outdoor unit Power supply for interface

controller is supplied from the outdoor unit. Refer to 3.1.

Separate interface/outdoor unit power supplies

Power supply for interface controller and power supply for outdoor unit are supplied from the different source.(Common power source for local unit and interface controller) Refer to 3.2.

Power supplied from outdoor unit

Power supply for interface controller is supplied from the outdoor unit. Refer to 3.1.

Separate interface/outdoor unit power supplies

Power supply for interface controller and power supply for outdoor unit are supplied from the different source.(Common power source for local unit and interface controller) Refer to 3.2.

Power supplied from outdoor unit

Power supply for interface controller is supplied from the outdoor unit. Refer to 3.1.

Intake temp. Liquid pipe temp.

Local unit

Local controller

Power line

Interface controller

Adjustable resistor

A transmission line/Power line

Power line

Outdoor unit

Separate interface/outdoor unit power supplies

Power supply for interface controller and power supply for outdoor unit are supplied from the different source.(Common power source for local unit and interface controller) Refer to 3.2.

Note:

• REMOTE SWITCH Type A (4bit - 8 setting) / Type B (1bit -1 setting)

TB142 10-11 (COM-IN5)

OFF ON OFF ON OFF ON OFF ON OFF

TB142 10-12 (COM-IN6)

OFF OFF ON ON OFF OFF ON ON OFF

TB142 10-13 (COM-IN7)

OFF OFF OFF OFF ON ON ON ON OFF

TB142 10-14 (COM-IN8)

OFF OFF OFF OFF OFF OFF OFF OFF ON

Step for capacity setting *

TypeA TypeB

OFF 0%

[OFF] [ON]

Step1 10% Step2 20% Step3 30% Step4 50% Step5 70% Step6 80% Step7 100% Auto step

[OFF] [ON]

OFF 0% Step1 10% Step4 50%

Step7 100%

Auto step

Remark

OFF

Fixed capacity

(Hz fixed)

mode

Auto step mode

Type A Type B

I/F

At site

4 bit 8 switch

OFF~AUTO

step

{

10 11 12 13 14

TB142

At site

Step1 Step4 Step7

AUTO

step

I/F

10 11 12 13 14

TB142

* The actual capacity will be slightly different from the numerial data in this table depending on conditions such as the ambient

temperature.

Attachment of sensor

Refer to 4.

Pipe-thermistor/ 2-phase might be neccessary depending on the type of the outdoor unit.

Refer to 4.

Pipe-thermistor/ 2-phase might be neccessary depending on the type of the outdoor unit.

Interface controller

switch setting

2 patterns can be set. (Refer to NOTE 1.)

Type A SW1-1:OFF SW1-2:OFF SW1-3:OFF SW6-1:OFF SW6-2:OFF

Type B SW1-1:ON SW1-2:OFF SW1-3:OFF SW6-1:OFF SW6-2:OFF Other switches are to be set according to the site. Refer to 5 for details.

Interface controller specifications

Input and wiring Output and wiring

Type A

Refer to 7.

OFF/Step1/Step2/

···Step7/Auto step Type B

OFF/Step1/Step4/ Step7/Auto step

Refer to 6 for details.

Refer to 7.

Other functions/setting

Maintenance

Refer to 8, 9.

Connection with

BMS/MELANS

Not available

Refer to 4.

Pipe-thermistor/ 2-phase might be neccessary depending on the type of the outdoor unit.

Refer to 4.

Pipe-thermistor/ 2-phase might be neccessary depending on the type of the outdoor unit.

Refer to 4.

Pipe-thermistor/ 2-phase might be neccessary depending on the type of the outdoor unit.

Refer to 4.

Pipe-thermistor/ 2-phase might be neccessary depending on the type of the outdoor unit.

SW1-1:OFF SW1-2:ON SW1-3:ON SW6-1:OFF SW6-2:OFF

Other switches are to be set according to the site. Refer to 5 for details.

SW1-1:OFF SW1-2:OFF SW1-3:ON SW6-1:OFF SW6-2:OFF

Other switches are to be set according to the site. Refer to 5 for details.

TB62 Connect the wired remote controller wire to No.5-6

Wiring Wire NO.×size(mm 2×0.3(Non-polar) Max. 500m

Circuit rating DC12V The figure is NOT always against the ground.

Only the operation with remote controller is valid. (External signal is invalid)

Refer to 6.

)

Refer to 7.

Refer to 8, 9.

Available Refer to 10.

Connect adaptor to outdoor unit. M-NET converter PAC-SF80MA-E A-Control sub Interface PAC-SK82SI-E

Available Refer to 10.

Connect adaptor to outdoor unit. M-NET converter PAC-SF80MA-E A-Control sub Interface PAC-SK82SI-E

Not available

System structure(2)

Outdoor unit capacity switch

4-20mA

Capacity switch of outdoor unit according to the signal of 4-20mA

1-5V Capacity switch of outdoor unit according to the signal of 1-5V

Intake temp. Liquid pipe temp.

Local unit

Local controller

Intake temp. Liquid pipe temp.

Local unit

Local controller

Intake temp. Liquid pipe temp.

Local unit

Local controller

System diagram Power supply specifications

Power supplied from outdoor unit

A transmission line/Power line

Power supply for interface controller is supplied from the outdoor unit. Refer to 3.1.

Interface controller

4-20mA

Power line

Outdoor unit

Separate interface/outdoor unit

Power line

A transmission line/Power line

power supplies Power supply for interface

controller and power supply for

Interface controller

4-20mA

Power line

Outdoor unit

outdoor unit are supplied from the different source. (Common power source for local unit and interface controller) Refer to 3.2.

Power supplied from outdoor unit

A transmission line/Power line

Power supply for interface controller is supplied from the outdoor unit.

Interface controller

1-5V

Power line

Outdoor unit

Refer to 3.1.

0-10V

Capacity switch of outdoor unit according to the signal of 0-10V

Intake temp. Liquid pipe temp.

Local unit

Local controller

Intake temp. Liquid pipe temp.

Local unit

Local controller

Intake temp. Liquid pipe temp.

Local unit

Local controller

Power line

Interface controller

1-5V

Interface controller

0-10V

Power line

Interface controller

0-10V

A transmission line/Power line

Power line

Outdoor unit

A transmission line/Power line

Power line

Outdoor unit

A transmission line/Power line

Power line

Outdoor unit

Separate interface/outdoor unit power supplies

Power supply for interface controller and power supply for outdoor unit are supplied from the different source. (Common power source for local unit and interface controller) Refer to 3.2.

Power supplied from outdoor unit Power supply for interface

controller is supplied from the outdoor unit. Refer to 3.1.

Separate interface/outdoor unit power supplies

Power supply for interface controller and power supply for outdoor unit are supplied from the different source. (Common power source for local unit and interface controller) Refer to 3.2.

Attachment of sensor

Refer to 4.

Pipe-thermistor/ 2-phase might be neccessary depending on the type of the outdoor unit.

Refer to 4.

Pipe-thermistor/ 2-phase might be neccessary depending on the type of the outdoor unit.

Interface controller

switch setting

SW1-1:ON SW1-2:ON SW1-3:OFF SW6-1:ON SW6-2:ON

Other switches are to be set according to the site. Refer to 5 for details.

Interface controller specifications

Input and wiring Output and wiring

Refer to 6.

Refer to 7.

Other functions/setting

Maintenance

Refer to 8, 9.

Connection with

BMS/MELANS

Not available

Refer to 4.

Pipe-thermistor/ 2-phase might be neccessary depending on the type of the outdoor unit.

Refer to 4.

Pipe-thermistor/ 2-phase might be neccessary depending on the type of the outdoor unit.

Refer to 4.

Pipe-thermistor/ 2-phase might be neccessary depending on the type of the outdoor unit.

SW1-1:ON SW1-2:ON SW1-3:OFF SW6-1:OFF SW6-2:ON

Other switches are to be set according to the site. Refer to 5 for details.

SW1-1:OFF SW1-2:OFF SW1-3:ON SW6-1:OFF SW6-2:OFF

Other switches are to be set according to the site. Refer to 5 for details.

Refer to 6.

Refer to 7.

Refer to 8, 9.

Not available

Refer to 4.

Pipe-thermistor/ 2-phase might be neccessary depending on the type of the outdoor unit.

Refer to 6.

Refer to 7.

Refer to 8, 9.

Not available

3. Power Supply

Interface controller is applicable to both methods of interface unit power supplied from outdoor unit, and of separate interface unit/outdoor unit power supplies. Choose one according to the site.

(Photo. 3-1)

Inlet for control cable

Inlet for power

Clamp

Interface / Outdoor unit connecting terminals

Earth terminal

3.1. Interface unit power supplied from outdoor unit (Photo 3-2)

The following connection patterns are available. The outdoor unit power supply patterns vary on models.

ABC

S1 S2 S3

A Outdoor unit power supply B Earth leakage breaker C Wiring circuit breaker or isolating switch D Outdoor unit E Interface unit/outdoor unit connecting cables F Interface unit

S1 S2 S3

Photo.3-1

Photo.3-2

Interface unit model PAC-IF011B-E

)

Interface unit-Outdoor unit *1 3× 1.5 (polar)

size

Interface unit-Outdoor unit earth *1 1 × Min.1.5

Wiring

(mm

Wire No.×

Interface unit-Outdoor unit S1-S2 *2 AC 230 V

rating

Circuit

*1. Max. 80 m *2. The ﬁ gures are NOT always against the ground.

S3 terminal has DC 24 V against S2 terminal. However between S3 and S1, these terminals are not electrically insulated by the transformer or other device.

Interface unit-Outdoor unit S2-S3 *2 DC24 V

Notes: 1. Wiring size must comply with the applicable local and national code.

2. Power supply cables and interface unit/outdoor unit connecting cables shall not be lighter than polychloroprene sheathed ﬂ exible cable. (Design 60245 IEC 57)

3. Install an earth longer than other cables.

3.2. Separate interface unit/outdoor unit power supplies

The following connection patterns are available. The outdoor unit power supply patterns vary on models.

GEB

S1 S2 S3

L N

S1 S2 S3

A Outdoor unit power supply B Earth leakage breaker C Wiring circuit breaker or isolating switch D Outdoor unit E Interface unit/outdoor unit connecting cables F Interface unit G Interface unit power supply

If the interface and outdoor units have separate power supplies, refer to the table below.

Separate power supply speciﬁ cations

Interface unit controller connector (CNS2) connection change

Disconnected

Photo. 3-3

CNS2

Outdoor unit DIP switch settings (when using separate interface unit/outdoor unit power supplies only)

ON OFF

Set the SW8-3 to ON.

(SW8)

Interface unit model PAC-IF011B-E Interface unit power supply ~/N (Single Phase), 50 Hz, 230 V Interface unit input capacity Main switch (Breaker)

)

Interface unit power supply & earth 3 × Min. 1.5

Interface unit-Outdoor unit *2 2 × Min. 0.3

size

Wire

No.×

Wiring

(mm

Interface unit-Outdoor unit earth –

*1 16 A

Interface unit L-N *3 AC230V Interface unit-Outdoor unit S1-S2 *3 –

rating

Circuit

*1. A breaker with at least 3.0mm contact separation in each pole shall be provided. Use earth leakage breaker (NV). *2. Max. 120 m *3. The ﬁ gures are NOT always against the ground.

Interface unit-Outdoor unit S2-S3 *3 DC24V

Notes: 1. Wiring size must comply with the applicable local and national code.

2. Power supply cables and interface unit/outdoor unit connecting cables shall not be lighter than polychloroprene sheathed ﬂ exible cable. (Design 60245 IEC 57)

3. Install an earth longer than other cables.

4. Connecting thermistor

4.1 Connecting thermistor cable

Connect the thermistor for the interface controller. When the thermistor cables are too long, cut it to the appropriate length. Do not bind it in the interface unit.

1. Target temp. thermistor (TH1) Connect the thermistor for the target temp. to 1 and 2 on the terminal block (TB61) on the interface controller.

2. Pipe temp. thermistor / Liquid (TH2) Connect the thermistor for the pipe temp. to 3 and 4 on the terminal block (TB61) on the interface controller.

3. Pipe temp. thermistor / 2-phase (TH5). Connect the thermistor for the 2-phase temp. to 5 and 6 on the terminal block (TB61) on the interface controller. Set the DIP switch 2-6 to OFF of the interface controller.

Caution: Do not route the thermistor cables together with power cables. The sensor part of the thermistor should be installed where user must not touch. (It is separated by the supplementary insulation from where user may touch.)

TB61

TH1 TH2

TH5

Photo. 4-1

4.2 Thermistor position

< Target temp. thermistor (TH1) > (Used only in *auto step mode (Only for Air to Air applications))

1. Put thermistor(TH1) where average intake temperature for heat exchanger can be detected.

2. It is better to put thermistor(TH1) where radiant heat from heat exchanger can be avoided. To use this interface for manual step control, put a ﬁ xed resistor of 4~10kΩ instead of thermistor.(TH1 on the terminal block TB61)

* Auto step mode: In this mode, the capacity step of the outdoor unit is controlled automatically to let the target (intake)

temperature reach the set temperature.(Only for air to air application)

< Liquid pipe thermistor (TH2) >

1. Put thermistor(TH2) where liquid refrigerant pipe temperature can be detected.

2. It is better to protect the thermistor(TH2) with heat insulating materials not to be affected by the ambient temperature, etc.

3. In case that the refrigerant is distributed by distributor, put thermistor(TH2) before the distributor.

< 2 phase pipe (condensing/evaporating) thermistor (TH5) >

*Only for Air to Air application (Refer to page.4) *Only in AUTO STEP mode of the I/F (Refer to page.4)

1. 2 phase pipe thermistor must be located where the 2 phase (condensing / evaporating) temperature of HEX can be meas-

ured.

2. Preferably, it should be insulated to avoid any inﬂ uences by the ambient air temperature and so.

3. It must be located where it does NOT measure hot gas/subcool liquid temperature in heating mode.

4. If HEX is divided into several paths, 2 phase pipe thermistor should be put on the upper path.(Liquid refrigerant tends to stay

in the lower path when HEX works as a condenser, and the improper temperature may possibly be picked up.)

5. 2 phase thermistor should be located in the middle of the path. If it is impossible to put it in the middle, it should be put a bit

inlet side of condenser. Do NOT move it too much to the inlet side, however, as it may possibly pick up hot gas temperature. (Never put it on the outlet side of condenser as it may pick up subcool liquid temperature.)

Thermistor for lower temperature

Target temperature thermistor (TH1) Pipe temperature thermistor/liquid (TH2)

Pipe temperature thermistor / 2-phase (TH5)

Thermistor R0 =15k" ± 3% Fixed number of B =3480 ± 2%

Rt =15exp { 3480 (

273+t

–

273

) }

< Thermistor for lower temperature >

Resistance (k)

0: 15k 10: 9.6k 20: 6.3k 25: 5.4k 30: 4.3k 40: 3.0k

" "

" " ' "

-20-100 1020304050 Temperature ()

5. Interface controller switch setting

Set the switches following the system speciﬁ cations below.

Switch1. Switch6 : Input selection of inverter capacity setting

Input SW 1-1 SW 1-2 SW 1-3 SW 6-1 SW 6-2 Step for capacity setting

REMOTE SWITCH Type A (4bit-8 setting)

REMOTE SWITCH Type B (1bit-1 setting)

4-20mA ON ON OFF ON ON OFF/Step1/Step2/…/Step7 1-5V ON ON OFF OFF ON OFF/Step1/Step2/…/Step7 0-10V OFF OFF ON OFF OFF OFF/Step1/Step2/…/Step7 0-10kΩ ON OFF ON OFF OFF OFF/Step1/Step2/…/Step7/Auto step No input (AUTO mode) OFF ON ON OFF OFF Only Auto step mode

SW1-4~8 : OFF ﬁ xed (Initial setting)

• SW2-1/2-2 : Fixed operation mode SW2-1 SW2-2 Details

OFF OFF Not FIX (Depending on Remote controller setting) ON OFF [Cooling]FIX OFF ON [Heating]FIX ON ON External input(Depending on TB142-3,4)

OFF OFF OFF OFF OFF OFF/Step1/Step2/…/Step7/Auto step

ON OFF OFF OFF OFF OFF/Step1/Step4/Step7/Auto step

• SW2-3/2-4/2-5 : Fixed set temperature [For Auto step mode only]

SW2-3 SW2-4 SW2-5 Details OFF OFF OFF Not ﬁ xed (Remote controller setting) ON OFF OFF Cooling 19 ˚C /Heating 17 ˚C FIX OFF ON OFF 20 ˚C FIX ON ON OFF 22 ˚C FIX OFF OFF ON 24 ˚C FIX ON OFF ON 26 ˚C FIX OFF ON ON 28 ˚C FIX ON ON ON Cooling 30 ˚C / Heating 28 ˚C FIX

Set switches in case of auto step mode. SW2-6 : Setting of TH5

When TH5 (2-phase pipe temp. thermistor) is connected, it is necessary to set the Dip SW2-6 of the interface controller.

SW2-6 Details OFF Connect TH5 ON Not connect TH5 (Initial setting)

SW2-7, 8 : OFF ﬁ xed (Initial setting) SW3 : LED2~5 display setting (Refer to 8.)

6. Input speciﬁ cations

Demand control is available by external input. It is possible to set the outdoor unit’s power consumption by setting the switch of the interface controller.

• REMOTE SWITCH Type A (4bit - 8 setting) / Type B (1bit -1 setting)

TB142 10-11 (COM-IN5)

OFF ON OFF ON OFF ON OFF ON OFF

TB142 10-12 (COM-IN6)

OFF OFF ON ON OFF OFF ON ON OFF

TB142 10-13 (COM-IN7)

OFF OFF OFF OFF ON ON ON ON OFF

TB142 10-14 (COM-IN8)

OFF OFF OFF OFF OFF OFF OFF OFF ON

Step for capacity setting

TypeA

OFF 0%

[OFF]

Step1 10%

[ON]

Step2 20% Step3 30% Step4 50% Step5 70% Step6 80% Step7 100% Auto step

TypeB

[OFF] [ON]

OFF 0% Step1 10% Step4 50%

Step7 100%

Auto step

Remark

OFF

Fixed capacity

(Hz fixed)

mode

Auto step mode

I/F

10 11 12 13 14

TB142

At site

AUTO step

4 bit 8 switch

OFF~AUTO step

At site

{

Demand control is available by connecting remote switches with terminal No.10 - 14. Make sure to use the non-voltage switch (for the remote switch). Remote switch cable length : Maximum 10m Remote switch : Minimum applicable load DC12V, 1mA

• 4-20mA / 1-5V / 0-10V / 0-10kΩ Use 4-20mA / 1-5V / 0-10V

Connect the transmission cables to No. 3 and 4 on the terminal

block (TB62). No. 3 on the terminal block(TB62) : Plus side No. 4 on the terminal block(TB62) : Minus side (Reference side)

Use adjustable resistor (0-10kΩ)

Connect the transmission cables to No. 1 and 2 on the terminal

block (TB62).

Adjustable resistor (0-10kΩ)

4-20mA 1-5V 0-10V

Step for capacity setting

Remark

0~100Ω 4~5mA 0~1.25V 0~0.63V OFF 0% Stop 510Ω 7mA 1.75V 1.88V Step1 10% 1kΩ 9mA 2.25V 3.13V Step2 20% 2kΩ 11mA 2.75V 4.38V Step3 30%

3.3kΩ 13mA 3.25V 5.63V Step4 50%

4.3kΩ 15mA 3.75V 6.88V Step5 70%

Fixed capacity (Hz ﬁ xed) mode

5.6kΩ 17mA 4.25V 8.13V Step6 80%

7.5kΩ 19~20mA 4.75~5V 9.38~10V Step7 100% 10kΩ – – – Auto step OPEN(12kΩ~)

– – – OFF 0% Stop

Auto step mode

*The values of the above table show the mid-point of each step range.

tolerance : 0-10kΩ : ±5%

4-20mA : ±0.4mA

1-5V : ±0.1V

0-10V : ±0.2V

Cable length : Maximum 10m

Step1 Step4 Step7

TB62

I/F

10 11 12 13 14

TB142

Photo. 6-1

• External function setting

This function is to set operation mode or to stop compressor by the external signal.

TB142 Item OFF ON Remark 1-2 (IN1) Forced Comp. OFF Normal Forced Comp. OFF 3-4 (IN2)Item Fixed operation mode Cooling Heating Available when SW2-1 and SW2-2 are ON

Cable length : Maximum 10m Remote switch : Minimum applicable load DC12V, 1mA

Caution: The external input signals are separated by basic insulation from power supply for the unit. The external input signals should be separated by supplementary insulation from where user may touch in case that it is installed where user may touch. Connect the terminals by using the ring terminals and also insulate the cables of adjoining terminals when wiring to terminal block.

0-10 k

4-20mA/1-5V/0-10V

Wired remote controller

(For maintenance)

I/FAt site

1 2 3 4 5 6

TB62

I/F

At site

( ( (

7. Output speciﬁ cations

Connecting External Output

The signal in the following states can be output.

TB141 Item OFF ON 1-2 (OUT1) X1 Operation Output OFF ON 3-4 (OUT2) X2 Error Output Normal Error 5-6 (OUT3) X3 Comp. Output OFF(Comp. OFF) ON (Comp. ON) 7-8 (OUT4) X4 Defrost Output OFF ON (Defrosting) 9-10 (OUT5) X5 Mode(Cool) Output OFF ON (Cooling) 11-12 (OUT6) X6 Mode(Heat) Output OFF ON (Heating) 13-14 (OUT7) – – – –

Cable length : Maximum 50m Output speciﬁ cation : Non-voltage switch 1A or less , 240V AC *Connect the surge absorber according to the load at site.

I/F

At site

X2 X3 X4 X5 X6

21354678

10 1 1 12 13 14

TB141

TB142

2134

Note : External output signals are separated by basic insulation from other circuit of interface. Caution : When 2 or more external outputs are used, the power supply on the output side should be the same.

Wiring speciﬁ cation of External output / External input Locally supplied parts

Item Name Model and speciﬁ cations External output function

External output signal wire

Use sheathed vinyl coated cord or cable. Wire type

: CV, CVS or equivalent.

Wire size : Stranded wire 0.5mm

Solid wire: [0.65mm to [1.2mm

Display lamp, etc. Non-voltage Contact AC220-240V (DC30V), 1A or less External input function

External input

signal wire

Use sheathed vinyl coated cord or cable. Wire type

: CV, CVS or equivalent.

Wire size : Stranded wire 0.5mm

Solid wire : [0.65mm to [1.2mm

Switch Non-voltage "a" contact

to 1.25mm

Photo.3-6

TB141

8. LED Display detail

Setting SW3 allows to switch the LED display. LED1 : Power supply LED2~4 : Setting SW3 switches the display

SW3-1 SW3-2 SW3-3 Display detail OFF OFF OFF A ON OFF OFF B OFF ON OFF C ON ON OFF D OFF OFF ON E ON OFF ON F OFF ON ON G

[Display detail A]

LED LED2 LED3 LED4 LED5

Power supply for remote controller Communication link between interface and outdoor units

[Display detail B]

LED LED2 LED3 LED4 LED5

Thermo Comp.

Control status Normal

Details of LED display

N/A N/A

OFF

OFF OFF OFF

ON OFF

OFF : Power is not supplied. OFF : No link

LED display and conditionFunction

Hot adjust

OFF ON

LED display

ON ON

Defrosting

ON : Power is supplied. Blink : Linked

㧙㧙

Demand Comp. OFF

[Display detail C]

LED2 LED3 LED4 LED5

Capacity request status (Output)

0% OFF

OFF OFF OFF OFF

10% Fix

ON OFF OFF OFF

20% Fix

OFF

ON OFF OFF

30% Fix

ON OFF OFF

40% Fix

OFF OFF

OFF

* Displays the output status(the request which the I/F sends to the outdoor unit)

[Display detail D]

LED2 LED3 LED4 LED5

Capacity request status (Input)

0% OFF

OFF OFF OFF OFF

10% Fix

ON OFF OFF OFF

20% Fix

OFF

ON OFF OFF

30% Fix

ON OFF OFF

40% Fix

OFF OFF

OFF

* Displays the input state(the request which this I/F receives)

[Display detail E]

LED LED2 LED3 LED4 LED5

Input condition

TB142 1-2(IN1)Input TB142 3-4(IN2)Input

N/A N/A

LED display

OFF OFF

ON — —

Forced Comp. OFF (ON:Forced Comp. OFF) Fixed operation mode (OFF=Cooling/ON=Heating)

[Display detail F]

LED LED2 LED3 LED4 LED5

Output condition

TB141 1-2(OUT1) Output TB141 3-4(OUT2) Output TB141 5-6(OUT3) Output TB141 7-8(OUT4) Output

LED display

OFF OFF OFF OFF

Operation output Error output Comp. output Defrost output

50% Fix

OFF

50% Fix

OFF

60% Fix

OFF

ON ON

OFF

60% Fix

OFF

ON ON

OFF

70% Fix

ON ON ON

OFF

70% Fix

ON ON ON

OFF

Details

— —

Details

80% Fix

OFF OFF OFF

80% Fix

OFF OFF OFF

90% Fix

ON OFF OFF

90% Fix

ON OFF OFF

100% Fix

OFF

100% Fix

OFF

Auto

ON ON

OFF

Auto

ON ON

OFF

[Display detail G]

LED LED2 LED3 LED4 LED5

TB141 9-10(OUT5) Output TB141 11-12(OUT6) Output

Output condition

N/A N/A

LED display OFF OFF

Details ON ON

— —

Cooling output Heating output

— —

9. Maintenance information

Connecting wired remote controller(PAR-21MAA) enables to display the error information.

Note: In case of using for ATW, the refrigerant leakage defection function of the outdoor unit is not available.

9.1. Connecting wired remote controller

Turn off the power supply. TB62 : Connect the wired remote controller wire to No. 5, 6(non-polar).

Note : Be sure to turn off the power supply before disconnecting the wired remote controller wire. Otherwise it may

cause trouble or to activate abnormality alarm.

9.2. Wired remote controller display

● Operation buttons

Temperature setting buttons

Down

Timer Menu button (Monitor/Set button)

Mode button (Return button)

Set Time buttons

Timer On/Off button (Set Day button)

● Display

Display Section

For purposes of this explanation, all parts of the display are shown as lit. During actual operation, only the relevant items will be lit.

Identifies the current operation

Shows the operating mode, etc. *Multilanguage display is available.

“Centrally Controlled” indicator

Indicates that operation from the remote controller has been prohibited by a master controller.

“Timer is Off” indicator

Indicates that the timer is off.

Temperature Setting

Shows the target temperature.

Back

Ahead

Opening the lid

TEMP.

ON/OFF

MONITOR/SET

BACK DAY

PAR-21MAA

CLOCK

OPERATION

Day-of-Week

Shows the current day of the week.

Time/Timer Display

Shows the current time, unless the simple or Auto Off timer is set. If the simple or Auto Off timer is set, the time to be switched off is shown.

TIME SUN MON TUE WED THU FRI SAT TIMER AFTER

ERROR CODE

°F°C

Hr AFTER

°F°C

ONLY1Hr.

Up/Down Air Direction indicator

The indicator shows the direction of the outcoming airflow.

“One Hour Only” indicator

Displayed if the airflow is set to low or downward during COOL or DRY mode. (Operation varies according to model.) The indicator goes off in 1 hour, when the airflow direction also changes.

Room Temperature display

Shows the room temperature. The room temperature display range is 8~39˚C. The display blinks if the temperature is less than 8˚C or 39˚C or more.

Louver display

Indicates the action of the swing louver. Does not appear if the louver is not running.

(Power On indicator)

Indicates that the power is on.

ON/OFF

FILTER

CHECK

TEST

CLEAR

Built-in temperature sensor

ON OFF

FUNCTION

FILTER

WEEKLY

SIMPLE

AUTO OFF

ON/OFF button

Fan Speed button

Filter button (<Enter> button)

Test Run button

Check button (Clear button)

Airflow Up/Down button

Louver button ( Operation button)

To return operation number

Ventilation button ( Operation button)

To go to next operation number

“Sensor” indication

Displayed when the remote controller sensor is used.

“Locked” indicator

Indicates that remote controller buttons have been locked.

“Clean The Filter” indicator

To be displayed on when it is time to clean the filter.

Timer indicators

The indicator comes on if the corresponding timer is set.

Fan Speed indicator

Shows the selected fan speed.

Ventilation indicator

Appears when the unit is running in Ventilation mode.

9.3. How to proceed "self-diagnosis"

9.3.1. When a Problem Occurs During Operation

If a problem occurs in the air conditioner, the indoor and outdoor units will stop, and the problem is shown in the remote controller display.  [CHECK] and the refrigerant address are displayed on the

temperature display, and the error code and unit number are displayed alternately as shown below. (If the outdoor unit is malfunctioning, the unit number will be “00”.)

 In the case of group control, for which one remote controller controls

multiple refrigerant systems, the refrigerant address and error code of the unit that first experienced trouble (i.e., the unit that transmitted the error code) will be displayed.

 To clear the error code, press the button.

ON/OFF















Error code (2 or 4 digits)

(Alternating Display)



Address (3 digits) or unit number (2 digits)



When using remote-/local-controller combined operation, cancel the error code after turning off remote operation. During central control by a MELANS controller, cancel the error code by pressing the

ON/OFF

button.

Self-Diagnosis During Maintenance or Service

Since each unit has a function that stores error codes, the latest check code can be recalled even if it is cancelled by the remote controller or power is turned off.



Check the error code history for each unit using the remote controller.



Switch to self-diagnosis mode.



Press the will change as shown below.

CHECK

button twice within 3 seconds. The display content

Unit number or refrigerant address to be diagnosed

Set the unit number or refrigerant address you want to diagnose.



Press the [TEMP] buttons ( and ) to select the desired number or address. The number (address) changes between [01] and [50] or [00]

and

[15].

The refrigerant address will begin to blink approximately 3 seconds after being selected and the self-diagnosis process will begin.



Display self-diagnosis results. <When there is error code history> (For the definition of each error code, refer to the indoor unit's installation manual or service handbook.)

(Alternating Display)

Error code (2 or 4 digits)



Reset the error history. Display the error history in the diagnosis result display screen (see step



Address (3 digits) or unit number (2 digits)



Press the address or refrigerant address will blink.



Cancel self-diagnosis. Self-diagnosis can be cancelled by the following 2 methods.



Press the



Press the

ON/OFF

CHECK

ON/OFF

button twice within 3 seconds. The self-diagnosis

button twice within 3 seconds.  Self-diagnosis will be cancelled and the screen will return to the previous state in effect before the

button.  Self-diagnosis will be cancelled and the indoor unit will stop.

start of self-diagnosis.

When the error history is reset, the display will look like the one shown below. However, if you fail to reset the error history, the error content will be displayed again.

9.3.2. Remote Controller Diagnosis

If the air conditioner cannot be operated from the remote controller, diagnose the remote controller as explained below.



First, check that the power-on indicator is lit. If the correct voltage (DC12 V) is not supplied to the remote controller, the indicator will not light. If this occurs, check the remote controller's wiring and the indoor unit.

Power on indicator



Switch to the remote controller self-diagnosis mode.



Press the change as shown below.

CHECK

button for 5 seconds or more. The display content will



Press the

FILTER

button to start self-diagnosis.



Remote controller self-diagnosis result [When the remote controller is functioning correctly]

Check for other possible causes, as there is no problem with the remote controller.

[Where the remote controller is not defective, but cannot be operated.] (Error display 2) [E3], [6833] or [6832] blinks.© Transmission is not

possible.

There might be noise or interference on the transmission path, or the indoor unit or other remote controllers are defective. Check the transmission path and other controllers.

[When the remote controller malfunctions] (Error display 1) "NG" blinks. ©The remote controller's transmitting-receiv-

The remote controller must be replaced with a new one.

(Error display 3)

The number of data errors is the difference between the number of bits sent from the remote controller and the number actually transmitted through the transmission path. If such a problem is occurring, the transmitted data is affected by noise, etc. Check the transmission path.

ing circuit is defective.

"ERC" and the number of data errors are displayed. © Data error has occurred.

When the number of data errors is "02": Transmission data from remote controller Transmission data on transmission path



To cancel remote controller diagnosis



Press the approximately 30 seconds, the state in effect before the diagnosis will be restored.

CHECK

button for 5 seconds or more. Remote controller diagnosis will be cancelled, "PLEASE WAIT" and operation lamp will blink. After

9.3.3. Malfunction-diagnosis method by remote controller

Refer to the following tables for details on the check codes.

Errors detected by indoor unit

Check code Symptom Remark P1 Intake sensor error P9 Pipe (TH5) sensor error P2 Pipe (TH2) sensor error E6,E7 Interface controller/outdoor unit communication error P6 Freezing/Overheating protection operation EE Communication error between indoor and outdoor units P8 Pipe temperature error E4, E5 Remote controller signal receiving error —— —— Fb Interface controller system error (memory error, etc.) E0, E3 Remote controller transmission error E1, E2 Remote controller control board error

Errors detected by unit other than indoor unit (outdoor unit, etc.)

Check code Symptom Remark E8

E9 UP Compressor overcurrent interruption

U3,U4 Open/short of outdoor unit thermistors UF Compressor overcurrent interruption (When compressor locked) U2 Abnormal high discharging temperature/insufﬁ cient refrigerant

U1,Ud U5 Abnormal temperature of heatsink

U8 Outdoor unit fan protection stop U6 Compressor overcurrent interruption/Abnormal of power module U7 Abnormality of superheat due to low discharge temperature

U9,UH ——

—— Others Other errors (Refer to the technical manual for the outdoor unit.)

Interface controller/outdoor unit communication error (Signal receiving error)

Interface controller/outdoor unit communication error (Transmitting error) (Outdoor unit)

Abnormal high pressure (63H worked)/Overheating protection operation

Abnormality such as overvoltage or voltage shortage and abnormal synchronous signal to main circuit/Current sensor error

For details, check the LED display of the outdoor controller board.

—

If the unit cannot be operated properly after test run, refer to the following table to find the cause.

• Symptom

Wired remote controller LED 1, 2 (PCB in outdoor unit)

PLEASE WAIT

PLEASE WAIT Error code

Display messages do not appear even when operation switch is turned ON (operation lamp does not light up).

Note: Operation is not possible for about 30 seconds after cancellation of function selection. (Correct operation)

For description of each LED (LED1, 2, 3) provided on the interface controller, refer to the following table. Display detail A (SW 3-1 = OFF, SW 3-2 = OFF, SW 3-3 = OFF)

For about 2 minutes after power-on

Subsequent to about 2 minutes after power-on

After LED 1, 2 are lighted, LED 2 is

turned off, then only LED 1 is lighted.

(Correct operation)

Only LED 1 is lighted. 

Only LED 1 is lighted.

LED 1, 2 blink.



LED 1 blinks twice, LED 2 blinks once.

•

For about 2 minutes following power-on,operation of the remote controller is not possible due to system start-up. (Correct operation)

•Connector for the outdoor unit’s protection device is not connected.

•Reverse or open phase wiring for the outdoor unit’s power terminal block (L1, L2, L3)

•Incorrect wiring between interface controller and outdoor (incorrect polarity of S1, S2, S3)

•Remote controller wire short

Cause

LED1 (power for microcomputer) Indicates whether control power is supplied. Make sure that this LED is LED2 (power for remote controller) Indicates whether power is supplied to the remote controller.

LED3 (communication between Interface controller

and outdoor units)

always lit.

This LED lights only in the case of the Interface controller which is connected to the outdoor unit refrigerant addresses “0”.

Indicates state of communication between the Interface controller and outdoor units. Make sure that this LED is always blinking.

Error code indication

You can check an error code on both 1 and 2.

LCD display on remote controller

2-digit LED indicator on outdoor unit PCB

SELF-DIAGNOSIS ACTION TABLE

Error Code Abnormal point and detection method Cause Countermeasure

Target Temperature thermistor (TH1)

The unit is in 3-minute resume

prevention mode if short/open of thermistor is detected. Abnormal if the

unit does not reset normally after 3 minutes. (The unit returns to normal operation, if it has been reset normally.)

Constantly detected during cooling,

drying, and heating operation. Short: -90: or more Open: -40: or less

characteristics

failure of thermistor wiring

(For SPLIT type outdoor unit, this LED indicator is optional parts.PAC-SK52ST) * The 2-digit LED indicator on outdoor unit PCB can display indoor side error as well.

Defective thermistor Contact failure of connector on

the interface controller board (Insert failure)

Breaking of wire or contact Defective interface controller

board

Check resistance value of thermistor.

1–3

0: 15.0k 10: 9.6k 20: 6.3k 30: 4.3k

40: 3.0k If you put force on (draw or bend) the lead wire with measuring resistance value of thermistor, breaking of wire or contact failure can be detected.

Check contact failure of connector on the

interface controller board. Turn the power on again and check restart after inserting connector again.

Check <target> temperature display on

remote controller.

Replace interface controller board if there is

abnormal difference with actual <target> temperature.

Turn the power off, and on again to operate after check.

" " " " "

Pipe temperature thermistor/Liquid (TH2)

The unit is in 3-minute resume

prevention mode if short/open of thermistor is detected. Abnormal if the

unit does not reset normally after 3 minutes. (The unit returns to normal operation, if it has been reset normally.)

Constantly detected during cooling,

drying, and heating (except defrosting)

operation Short: 90: or more Open: -40: or less

Pipe temperature thermistor / 2-phase (TH5)

The unit is in 3-minute resume protection

mode if short/open of thermistor is detected. Abnormal if the unit does not get back to normal within 3 minutes. (The unit returns to normal operation, if it has been reset normally.)

Constantly detected during cooling,

drying, and heating operation (except

defrosting) Short: 90: or more Open: -40: or less

Defective thermistor

characteristics

Contact failure of connector on

the interface controller board (Insert failure)

Breaking of wire or contact

failure of thermistor wiring

Defective refrigerant circuit is

causing thermistor temperature of 90: or more or -40: or less.

Defective interface controller

board

Defective thermistor

characteristics

Contact failure of connector on

the interface controller board (Insert failure)

Breaking of wire or contact

failure of thermistor wiring

Temperature of thermistor is

90: or more or -40: or less caused by defective refrigerant circuit.

Defective interface controller

board

Check resistance value of thermistor.

1–3

For characteristics, refer to (P1) above.

Check contact failure of connector on the

interface controller board. Turn the power on and check restart after inserting connector again.

Check pipe <liquid> temperature with remote

controller in test run mode. If pipe <liquid> temperature is extremely low (in cooling mode) or high (in heating mode), refrigerant circuit may have defective.

Check pipe <liquid> temperature with

remote controller in test run mode. If there is extremely difference with actual pipe <liquid> temperature, replace interface controller board.

Turn the power off, and on again to operate after check.

Check resistance value of thermistor.

1–3

For characteristics, refer to (P1) above.

Check contact failure of connector on the

interface controller board.

Turn the power on and check restart after

inserting connector again.

Operate in test run mode and check pipe

<2-phase> temperature with outdoor controller circuit board. If pipe <2-phase> temperature is extremely low (in cooling mode) or high (in heating mode), refrigerant circuit may have defect.

Operate in test run mode and check pipe

<2-phase> temperature with outdoor control

circuit board. If there is extreme difference with actual pipe <2-phase> temperature, replace interface

controller board. There is no abnormality if none of above

comes within the unit. Turn the power off and on again to operate.

In case of checking pipe temperature with outdoor controller circuit board, be sure to connect A-control service

(

tool (PAC-SK52ST).

)

Error Code

Abnormal point and detection method

Freezing/overheating protection is working

Freezing protection (Cooling mode)

The unit is in 6-minute resume prevention mode if pipe <liquid or 2-phase> temperature stays under

-15: for 3 minutes, 3 minutes after the compressor started. Abnormal if it stays under -15: for 3 minutes again within 16 minutes after 6-minute resume prevention mode.

Cause

(Cooling or drying mode)

Clogged ﬁ lter (reduced airﬂ ow)

Short cycle of air path

Low-load (low temperature)

operation out of the tolerance range

Defective indoor fan motor

• Fan motor is defective.

• Indoor controller board is defective.

Countermeasure

(Cooling or drying mode)

Check clogs of the ﬁ lter.

Remove shields.

Check indoor fan motor.

Overheating protection (Heating mode)

The units is in 6 minute resume

prevention mode if pipe <2-phase> temperature is detected as over 70: after the compressor started. Abnormal if the temperature of over 70: is detected again within 30 minutes after 6 minute resume prevention mode.

Pipe temperature

<Cooling mode> Detected as abnormal when the pipe temperature is not in the cooling range 3 minutes after compressor start and 6 minutes after the liquid or 2-phase pipe is out of cooling range. Note 1) It takes at least 9 minutes to detect. Note 2) Abnormality P8 is not detected in

drying mode. Cooling range : -3 °C ] (TH-TH1) TH: Lower temperature between: liquid

pipe temperature (TH2) and 2-phase temperature (TH5)

TH1: Target temperature <Heating mode>

When 10 seconds have passed after the compressor starts operation and the hot adjustment mode has ﬁ nished, the unit is detected as abnormal when 2-phase pipe temperature is not in heating range within 20 minutes.

Defective outdoor fan control

Overcharge of refrigerant

Defective refrigerant circuit

(clogs)

(Heating mode)

Clogged ﬁ lter (reduced airﬂ ow)

Short cycle of air path

Over-load (high temperature)

operation out of the tolerance range

Defective indoor fan motor

• Fan motor is defective.

• Indoor controller board is defective.

Defective outdoor fan control

Overcharge of refrigerant

Defective refrigerant circuit

(clogs)

Bypass circuit of outdoor unit is

defective.

Slight temperature difference

between TH1

temperature and pipe <liquid or 2-phase> temperature thermistor

• Shortage of refrigerant

• Disconnected holder of pipe <liquid or 2-phase> thermistor

• Defective refrigerant circuit

Converse connection of

extension pipe (on plural units

connection)

Converse wiring of interface/

outdoor unit connecting wire (on

plural units connection)

Defective detection of

target temperature and pipe <2-phase>

temperature thermistor

Stop valve is not opened

completely.

Check outdoor fan motor.

Check operating condition of refrigerant

circuit.

(Heating mode)

Check clogs of the ﬁ lter.

Remove shields.

Check indoor fan motor.

Check outdoor fan motor.

Check operating condition of refrigerant

6~8

circuit.

Check pipe <liquid or 2-phase>

1~4

temperature with target temperature display on remote controller and outdoor controller circuit board.

Pipe <liquid or 2-phase> temperature

display is indicated by setting SW2 of outdoor controller circuit board as follows.

Conduct temperature check with outdoor controller circuit board after connecting

(

‘A-Control Service Tool(PAC-SK52ST)’.

Check converse connection of extension

pipe or converse wiring of interface/outdoor unit connecting wire.

)

Note 3) It takes at least 27 minutes to

detect abnormality.

Note 4) It excludes the period of defrosting.

(Detection restarts when defrosting mode is over.)

Heating range : 3 °C [ (TH5-TH1)

Error Code

Abnormal point and detection method

Remote controller transmission error (E0)/signal receiving error (E4)

Abnormal if main or sub remote controller

cannot receive any transmission normally from Interface unit of refrigerant address “0” for 3 minutes.

(Error code: E0)

Abnormal if sub-remote controller could

not receive any signal for 2 minutes. (Error code: E0)

Abnormal if Interface controller board

can not receive any data normally from remote controller board or from other Interface controller board for 3 minutes. (Error code: E4)

Interface controller board cannot receive

any signal from remote controller for 2 minutes. (Error code: E4)

Contact failure at transmission

wire of remote controller

All remote controllers are set

as “sub” remote controller. In this case, E0 is displayed on remote controller, and E4 is displayed at LED (LED1, LED2) on the outdoor controller circuit board.

Miswiring of remote controller

Defective transmitting receiving

circuit of remote controller

Noise has entered into the

transmission wire of remote controller.

Judgment and actionCase

Check disconnection or looseness of

Interface unit or transmission wire of remote controller.

Set one of the remote controllers “main”, If

there is no problem with the action above.

Check wiring of remote controller.

• Total wiring length: max. 500 m (Do not use cablex 3 or more.)

• The number of connecting remote controller: max. 2 units

When it is not the above-mentioned problem of

Diagnose remote controllers.

a) When “RC OK” is displayed, remote

controllers have no problem.

Turn the power off, and on again to check. If abnormality generates again, replace Interface controller board.

b) When “RC NG” is displayed, replace

remote controller.

c) When “RC E3” or “ERC 00-66” is displayed,

noise may be causing abnormality.

E1 E2

E3 E5

Remote controller control board

Abnormal if data cannot be read normally

from the nonvolatile memory of the remote controller control board.

(Error code: E1)

Abnormal if the clock function of remote

controller cannot be operated normally.

(Error code: E2)

Remote controller transmission error (E3)/signal receiving error (E5)

Abnormal if remote controller could not

ﬁ nd blank of transmission path for 6 seconds and could not transmit.

(Error code: E3)

When remote controller receives

the transmitted data same time and compares these data. Abnormal if the data is judged to be different for 30 continuous times. (Error code: E3)

Abnormal if Interface controller board

could not ﬁ nd blank of transmission path. (Error code: E5)

When Interface controller receives

the transmitted data same time and compares these data. Abnormal if the data is judged to be different for 30 continuous times. (Error code: E5)

Defective remote controller

2 remote controllers are set as

“main.”

(

In case of 2 remote controllers

Defective transmitting receiving

circuit of remote controller

Defective transmitting receiving

circuit of Interface controller board

Noise has entered into

transmission wire of remote controller.

Replace remote controller.

Set a remote controller to main, and the

other to sub.

)

Diagnose remote controller.

2~4

a) When “RC OK” is displayed, remote

controllers have no problem. Turn the power off, and on again to check. When becoming abnormal again, replace

interface controller board. b) When “RC NG” is displayed, replace

remote controller. c) When “RC E3” or “ERC 00-66” is

displayed, noise may be causing

abnormality.

Error Code

Abnormal point and detection method Judgment and action

Interface unit/outdoor unit communication error (Signal receiving error)

Abnormal if Interface controller board

cannot receive any signal normally for 6 minutes after turning the power on. Abnormal if Interface controller board

cannot receive any signal normally for 3 minutes.

Contact failure, short circuit

or, miswiring (converse wiring) of Interface unit/outdoor unit connecting wire

Defective transmitting receiving

circuit of Interface controller board

Defective transmitting receiving

circuit of Interface controller board

Noise has entered into Interface

unit/outdoor unit connecting wire.

Case

* Check LED display on the outdoor control

circuit board. (Connect A-control service tool, PAC-SK52ST.)

Check disconnection or looseness of

Interface unit/outdoor unit connecting wire of Interface unit or outdoor unit.

Turn the power off, and on again to

check. If abnormality generates again, replace Interface controller board or outdoor controller circuit board.

Interface unit/outdoor unit communication error (Signal receiving error) (Outdoor unit)

Abnormal if outdoor controller circuit board could not receive anything normally for 3 minutes.

Interface unit/outdoor unit communication error (Transmitting error) (Outdoor unit)

(1) Abnormal if “0” receiving is detected

30 times continuously though outdoor controller circuit board has transmitted “1”.

(2) Abnormal if outdoor controller

circuit board could not ﬁ nd blank of transmission path for 3 minutes.

Non deﬁ ned error code

This code is displayed when non deﬁ ned error code is received.

Contact failure of Interface unit/

outdoor unit connecting wire

Defective communication circuit

of outdoor controller circuit board

Defective communication circuit

of Interface controller board

Noise has entered into Interface

unit/outdoor unit connecting wire.

Interface unit/outdoor unit

connecting wire has contact failure.

Defective communication circuit

of outdoor controller circuit board

Noise has entered power

supply.

Noise has entered Interface

unit/outdoor unit connecting wire.

Noise has entered transmission

wire of remote controller.

Noise has entered Interface

unit/outdoor unit connecting wire.

Check disconnection or looseness of

Interface unit/outdoor unit connecting wire of Interface unit or outdoor unit.

Turn the power off, and on again to

2~4

check. Replace Interface controller board or outdoor controller circuit board if abnormality is displayed again.

Check disconnection or looseness of

Interface unit/outdoor unit connecting wire.

Turn the power off, and on again to

2~4

check. Replace outdoor controller circuit board if abnormality is displayed again.

Turn the power off, and on again to check.

Replace Interface controller board

or outdoor controller circuit board if abnormality is displayed again.

Serial communication error

Abnormal if serial communication between outdoor controller circuit board and outdoor power circuit board is defective.

Wire disconnection or contact

failure of connector CN2

between the outdoor controller circuit board and the outdoor power circuit board

Wire disconnection or contact

failure of connector CN4

between the outdoor controller circuit board and the outdoor power circuit board

Defective communication circuit

of outdoor power circuit board

Defective communication circuit

of outdoor controller circuit board for outdoor power circuit board

Check connection of each connector CN2

and CN4 between the outdoor controller circuit board and the outdoor power circuit board.

Replace outdoor power circuit board.

Replace outdoor controller circuit board.

9.3.4. HOW TO "MONITOR THE OPERATION DATA"

• Turn on the [Monitoring the operation data]





(3)



Example) Request code "004"

Discharge temperature 69 Refrigerant address "00"



(7) (5)



(1) (2)

(4)

(1)Press the (2)Press the

Note)

Operating the service inspection monitor

- - - ] appears on the screen (at

[

(The display (at (3)Press the [TEMP] buttons (

[Screen]

(4)Press the [CLOCK] buttons ( and ) to set the desired request code No. (5)Press the

(The requested data will be displayed at Data collected during operation of the remote controller will be displayed.

The collected data such as temperature data will not be updated automatically even if the data changes. To display the updated data, carry out step (4) again.

TEST

CHECK

It is not possible to switch to [Maintenance monitor] during data request in maintenance mode (i.e., while "

since no buttons are operative.



FIL TER

button for 3 seconds so that [ Maintenance mode] appears on the screen (at ).

button for 3 seconds to switch to [Maintenance monitor].



) when [Maintenance monitor] is activated.

) now allows you to set a request code No.)

and ) to select the desired refrigerant address.

button to perform data request.



in the same way as in maintenance mode.)

(6)

A: Maintenance mode B: Refrigerant address C: Data display area D: Request code display area

- - - -"

is blinking)

Canceling the Monitoring the operation data

(6)While [Maintenance monitor] is displayed, press the (7)To return to normal mode, press the

ON/OFF

CHECK

button.

button for 3 seconds to return to maintenance mode.

9.4. Request code list

* Certain interface/outdoor combinations do not have the request code function; therefore, no request codes are displayed.

Request content

Request code

Operation state

Compressor-Operating current (rms)

Compressor-Accumulated operating time

Compressor-Number of operation times

Discharge temperature (TH4)

Outdoor unit - Liquid pipe 1 temperature (TH3)

Outdoor unit - Liquid pipe 2 temperature

Outdoor unit-2-phase pipe temperature (TH6)

7 8

Outdoor unit-Suction pipe temperature (TH32) Outdoor unit-Outside air temperature (TH7)

Outdoor unit-Heatsink temperature (TH8)

10 11

Discharge superheat (SHd)

Sub-cool (SC)

13 14 15

Compressor-Operating frequency

Compressor-Target operating frequency

Outdoor unit-Fan output step

Outdoor unit-Fan 1 speed

(Only for air conditioners with DC fan motor) Outdoor unit-Fan 2 speed

(Only for air conditioners with DC fan motor)

LEV (A) opening

LEV (B) opening

23 24

LEV (C) opening Primary current

DC bus voltage

26 27 28

Number of connected indoor units

Interface unit-Setting temperature

Interface unit-T arget temperature <Measured by thermostat>

Interface unit-Target temperature (Unit No. 1)

<Heat mode-4-deg correction> Interface unit-Target temperature (Unit No. 2)

<Heat mode-4-deg correction> Interface unit-Target temperature (Unit No. 3)

<Heat mode-4-deg correction> Interface unit-Target temperature (Unit No. 4)

Interface unit - Liquid pipe temperature (Unit No. 1)

Interface unit - Liquid pipe temperature (Unit No. 2)

Interface unit - Liquid pipe temperature (Unit No. 3)

Interface unit - Liquid pipe temperature (Unit No. 4)

40 41

Interface unit-2-phase. pipe temperature (Unit No. 1)

Interface unit-2-phase. pipe temperature (Unit No. 2)

Interface unit-2-phase. pipe temperature (Unit No. 3)

Interface unit-2-phase. pipe temperature (Unit No. 4)

45 46 47

Thermostat ON operating time

Test run elapsed time

Description

(Display range)

Refer to 9.4.1. Detail Contents in Request Code. 0 – 50 0 – 9999 0 – 9999 3 – 217

-40 – 90

-39 – 88

-40 – 200

0 – 255 0 – 130

0– 255 0– 255 0– 10

0 – 9999

0– 500 0– 500

0– 500 0– 50

180 – 370

0– 4 17 – 30 8– 39 8– 39

8– 39

-39 – 88

0 – 999 0– 120

10 hours

100 times

Step

Pulses Pulses

Pulses

Units

Minutes Minutes

Unit Remarks

– A

˚C ˚C ˚C ˚C ˚C ˚C ˚C

˚C ˚C

Hz Hz

rpm

˚C ˚C

˚C

˚C ˚C ˚C ˚C

"0" is displayed if the air conditioner is a single-fan type.

A V

"0" is displayed if the target unit is not present.

is displayed if the target unit is not present.

"0"

is displayed if the target unit is not present.

"0"

Not possible to activate maintenance mode during the test run.

Request content

Request code

Interface unit-Control state

Outdoor unit-Control state

Compressor-Frequency control state

Outdoor unit-Fan control state

Actuator output state

Error content (U9)

55 56 57 58 59

Signal transmission demand capacity

Contact demand capacity

External input state (silent mode, etc.)

62 63 64 65 66 67 68 69

Outdoor unit-Capacity setting display

Outdoor unit-Setting information

71 72

Outdoor unit-SW1 setting information

Outdoor unit-SW2 setting information

74 75

Outdoor unit-SW4 setting information

Outdoor unit-SW5 setting information

Outdoor unit-SW6 setting information

Outdoor unit-SW7 setting information

Outdoor unit-SW8 setting information

Outdoor unit-SW9 setting information

Outdoor unit-SW10 setting information

82 83

M-NET adapter connection (presence/absence)

84 85

86 87 88

Display of execution of replace/wash operation Outdoor unit-Microcomputer version information

Outdoor unit-Microcomputer version information (sub No.)

92 93 94 95 96 97 98 99

Outdoor unit - Error postponement history 1 (latest)

100

Outdoor unit - Error postponement history 2 (previous)

101

Outdoor unit - Error postponement history 3 (last but one)

102

Description

(Display range)

Refer to 9.4.1.Detail Contents in Request Code. Refer to 9.4.1.Detail Contents in Request Code.

Refer to 9.4.1.Detail Contents in Request Code. Refer to 9.4.1.Detail Contents in Request Code. Refer to 9.4.1.Detail Contents in Request Code. Refer to 9.4.1.Detail Contents in Request Code.

0 – 255

Refer to 9.4.1.Detail Contents in Request Code.

Refer to 9.4.1.Detail Contents in Request Code. Refer to 9.4.1.Detail Contents in Request Code.

Refer to 9.4.1.Detail Contents in Request Code.

Refer to 9.4.1.Detail Contents in Request Code. Refer to 9.4.1.Detail Contents in Request Code. Refer to 9.4.1.Detail Contents in Request Code. Refer to 9.4.1.Detail Contents in Request Code.

"0000": Not connected "0001": Connected

"0000": Not washed "0001": Washed

Examples) Ver 5.01 

"0501" Auxiliary information (displayed after version information) Examples) Ver 5.01 A000 

Displays postponement code. (" - - " is displayed if no postponement code is present) Displays postponement code. (" - - " is displayed if no postponement code is present) Displays postponement code. (" - - " is displayed if no postponement code is present)

"A000"

Code

Unit Remarks

– – – – – –

% – –

– –

– – – – – – –

–

Ver

–

Request content

Request code

Error history 1 (latest)

103

Error history 2 (second to last)

104

Error history 3 (third to last)

105

Abnormal thermistor display

106

(TH3/TH6/TH7/TH8)

Operation mode at time of error

107

Compressor-Operating current at time of error

108

Compressor-Accumulated operating time at time of error

109

Compressor-Number of operation times at time of error

110

Discharge temperature at time of error

111

Outdoor unit - Liquid pipe 1 temperature (TH3) at time of error

112

Outdoor unit - Liquid pipe 2 temperature at time of error

113

Outdoor unit-2-phase pipe temperature (TH6) at time of error

114 115

Outdoor unit-Outside air temperature (TH7) at time of error

116

Outdoor unit-Heatsink temperature (TH8) at time of error

117

Discharge superheat (SHd) at time of error

118

Sub-cool (SC) at time of error

119

Compressor-Operating frequency at time of error

120

Outdoor unit at time of error

121

• Fan output step Outdoor unit at time of error

122

• Fan 1 speed (Only for air conditioners with DC fan) Outdoor unit at time of error

123

• Fan 2 speed (Only for air conditioners with DC fan)

124

LEV (A) opening at time of error

125

LEV (B) opening at time of error

126 127 128 129

Thermostat ON time until operation stops due to error

130 131

Interface - Liquid pipe temperature at time of error

132

Interface-2-phase pipe temperature at time of error

133

Interface at time of error

134

• T arget temperature <Thermostat judge temperature> 135 136 137 138 139 140

~ 146 147 148 149

Interface-Actual intake air temperature

150

Interface-Liquid pipe temperature

151

Interface-2-phase pipe temperature

152 153

~ 767

Description

(Display range)

Displays error history. (" - - " is displayed if no history is present.) Displays error history. (" - - " is displayed if no history is present.) Displays error history. (" - - " is displayed if no history is present.)

: TH3 6 : TH6 7 : TH7 8 : TH8 0 : No thermistor error

Displayed in the same way as request code "0". 0– 50 0 – 9999 0 – 9999 3– 217

-40 – 90

-39 – 88

-40 – 200 0– 255 0– 130 0– 255

0– 10

0 – 9999

0– 500 0– 500

0 – 999

-39 – 88

Unit Remarks

Code Code Code

Sensor number

– A

10 hours

100 times

˚C ˚C ˚C ˚C

Step

rpm

Pulses Pulses

Minutes

˚C

˚C ˚C ˚C

"0" is displayed if the air conditioner is a single-

fan type.

Average value of all indoor units is displayed if the air conditioner consists of two or more indoor units (twin, triple, quad). Average value of all indoor units is displayed if the air conditioner consists of two or more indoor units (twin, triple, quad).

9.4.1 Detail Contents in Request Code









Example) Request code "004"

Discharge temperature 69  Refrigerant address "00"

A: Maintenance mode display B: Refrigerant address

C: Data display area D: Request code display area

[Operation state] (Request code ":0")

Data display

Relay output state

Display

Relay output state Operation mode

Operation mode

Display Operation mode

0STOP • FAN C COOL • DRY HHEAT

d DEFROST

[Interface unit – Control state] (Request code :"50 ")

Data display

Unit No. 4 state Unit No. 3 state

Unit No. 2 state Unit No. 1 state

Display State

Power currently

supplied to compressor 0 1

2 3 4 5 6 7 8 A

0 Normal 1 Preparing for heat operation 2– 3– 4 Heater is ON. 5 Anti-freeze protection is ON. 6 Overheat protection is ON. 7 Requesting compressor to turn OFF F There are no corresponding units.

–

ON ON

Compressor 4-way valve Solenoid valve

–

ON ON ON ON

–

ON ON

–

[Outdoor unit – Control state] (Request code ":51")

Data display State 0 0 0 0 Normal 0 0 0 1 Preparing for heat operation 0 0 0 2 Defrost

[Compressor – Frequency control state] (Request code ":52")

Data display

Frequency control state Frequency control state

Frequency control state 

Display Current limit control

0 No current limit 1 Primary current limit control is ON. 2 Secondary current limit control is ON.

Frequency control state 

Display





Discharge temperature

0 1 Controlled 2 Controlled 3 Controlled Controlled 4 Controlled 5 Controlled Controlled 6 Controlled Controlled 7 Controlled Controlled Controlled 8 Controlled 9 Controlled Controlled

A Controlled Controlled

b Controlled Controlled Controlled

C Controlled Controlled

d Controlled Controlled Controlled

E Controlled Controlled Controlled

F Controlled Controlled Controlled Controlled

Condensation temperature

overheat prevention

protection control

Anti-freeze

Heatsink temperature

overheat prevention

[Fan control state] (Request code :"53")

Data display

Fan step correction value by heatsink temperature overheat prevention control Fan step correction value by cool condensation temperature overheat prevention control

Display Correction value

- (minus) – 1 00

+1 +2

[Actuator output state] (Request code :"54")

Data display

Actuator output state  Actuator output state 

Actuator output state 

Display SV1 4-way valve Compressor

0 1

2 3

4 5

6 7

8 9

A b

C d

E F

ON ON

Compressor is

warming up

ON ON

Actuator output state 

Display 52C SV2 SS

0 1

2 3 4 5 6 7

ON ON

ON ON ON ON

[Error content (U9)] (Request code :"55")

Data display

Error content  Error content 

Error content  : Detected

Display

0 1 2 3 4 5 6 7 8 9 A b C d E F

Overvoltage Undervoltage L1-phase

error error open error

Power synchronizing

signal error

Error content  : Detected

0 1 2 3

Converter Fo

error

PAM error

Display

[Contact demand capacity] (Request code "61")

Data display

000

Setting content

[External input state] (Request code "62")

Data display

000

Input state

Setting content

Setting

Display Setting value

0 1 50% 2 75% ON 3 100%

Input state : Input present

Display

0 1 2 3 4 5 6 7 8 9

d E F

Contact demand Silent mode Spare 1 Spare 2

input input input input

SW7-1 SW7-2

[Outdoor unit - Capacity setting display] (Request code : "70")

Data display

935 10 50 11 60 14 71 20 100 25 125 28 140 40 200 50 250

Capacity

[Outdoor unit - Setting information] (Request code "71")

Data display

Setting information  Setting information 

Setting information 

Display Defrost mode

0 Standard 1 For high humidity

Setting information 

Display

0 1 2 3

Single-/ Heat pump/ 3-phase

Single-phase

3-phase

cooling only

Heat pump Cooling only Heat pump

Cooling only

[Outdoor unit switch setting display (SW1 to SW10, except SW3)] Request codes: 73 to 82

0: Swich OFF 1: Swich ON

SW1, SW2, SW6, SW7

123456 0 0 0 0 0 0 00 00

1 0 0 0 0 0 00 01 0 1 0 0 0 0 00 02 1 1 0 0 0 0 00 03 0 0 1 0 0 0 00 04 1 0 1 0 0 0 00 05 0 1 1 0 0 0 00 06 1 1 1 0 0 0 00 07 0 0 0 1 0 0 00 08 1 0 0 1 0 0 00 09 010100 000A 1 1 0 1 0 0 00 0b 001100 000C 1 0 1 1 0 0 00 0d 011100 000E 111100 000F 0 0 0 0 1 0 00 10 100010 010010 110010 001010 101010 011010 111010 000110 100110 010110 110110 001110 101110 011110 111110 000001 100001 010001 110001 001001 101001 011001 111001 000101 100101 010101 110101 001101 101101 011101 111101 000011 100011 010011 110011 001011 101011 011011 111011 000111 100111 010111 110111 001111 101111 011111 111111

Data display

00 11 00 12 00 13 00 14 00 15 00 16 00 17 00 18 00 19 00 1A 00 1B 00 1C 00 1D 00 1E 00 1F 00 20 00 21 00 22 00 23 00 24 00 25 00 26 00 27 00 28 00 29 00 2A 00 2B 00 2C 00 2D 00 2E 00 2F 00 30 00 31 00 32 00 33 00 34 00 35 00 36 00 37 00 38 00 39 00 3A 00 3B 00 3C 00 3D 00 3E 00 3F

0: Swich OFF 1: Swich ON

SW5

1234

Data display

0000 0000 1000 0001 0100 0002 1 1 0 0 00 03 0010 0004 1010 0005 0110 0006 1 1 1 0 00 07 0001 0008 1001 0009 0101 000A 1 1 0 1 00 0b 0011 000C 1 0 1 1 00 0d 0111 000E 1111 000F

0: Swich OFF 1: Swich ON

SW8

123

Data display

000 0000 100 0001 010 0002 110 0003 001 0004 101 0005 011 0006 111 0007

0: Swich OFF 1: Swich ON

SW4, SW9, SW10

Data display

0 0 00 00 1 0 00 01 0 1 00 02 1 1 00 03

10. Central control

When connected with the outdoor unit, M-NET converter and A-control sub Interface can be connected to MELANS and BMS, which enables the central control available. As for the demand control setting, the central control is not available in the ﬁ xed capacity mode. However, with the wired remote controller method(Auto step mode), the central control is available.

Operation with MELANS / BMS Set the switch from the following setting according to the speciﬁ cations of the local unit. Ex. Local unit with only heating : select the 2 or 3 below.

Operation function : ON/OFF, operation mode change, the set temperature change

Switch setting SW1-1=OFF SW1-2=ON SW1-3=ON SW1-4~8=OFF SW2-1~5=OFF SW 2-6=ON SW2-7,8=OFF

Operation function : ON/OFF, the set temperature change

Switch setting SW1-1=OFF SW1-2=ON SW1-3=ON SW1-4~8=OFF SW2-3~5=OFF SW 2-6=ON SW2-7,8=OFF (Operation mode is determined by the setting of SW2-1, 2. MELANS and BMS cannot operate this setting.)

Operation function : ON/OFF, operation mode change

Switch setting SW1-1=OFF SW1-2=ON SW1-3=ON SW1-4~8=OFF SW1,2=OFF SW 2-6=ON SW2-7,8=OFF (Set temperature is determined by the setting of SW2-3~5. MELANS and BMS cannot operate this setting.)

Operation function : ON/OFF

Switch setting SW1-1=OFF SW1-2=ON SW1-3=ON SW1-4~8=OFF SW 2-6=ON SW2-7,8=OFF (Operation mode and set temperature are determined by the setting of SW2-1~5. MELANS and BMS cannot operate this

setting.)

Intake temp. Liquid pipe temp.

Local unit

Wired remote controller

Intake temp. Liquid pipe temp.

Local unit

Wired remote controller

Interface controller

PAR-21MAA

Interface controller

PAR-21MAA

A transmission line/Power line

Power line

Outdoor unit

A transmission line/Power line

Power line

Outdoor unit

M-NET converter A-Control sub Interface

MELANS BMS

M-NET converter A-Control sub Interface

11. Outlines and dimensions

Unit : mm

TB61 TB62

3-ELECTRIC WIRE INLET

336 313

(11.5)11.5

Ø5

Ø12

TB141TB142

TB6

2-HOLES (FOR INSTALLATION)

200

278

(FOR

INSTALLATION)

Ø5 HOLES

12. Troubleshooting

A flowing water sound or occasional hissing sound is heard.

Water does not heat or cool well.

Water or vapor is emitted from the outdoor unit.

■

Thease sounds can be heard when refrigerant is ﬂ owing in the indoor

unit, refrigerant pipe or when the refrigerant is chaging.

■

Clean the ﬁ lter of water piping. (Flow is reduced when the ﬁ lter is dirty

or clogged.)

■

Check the temperature adjustment and adjust the set temperature.

■

Make sure that there is plenty of space around the outdoor unit.

■

During cooling mode, water may form and drip from the cool pipes and

joints.

■

During heating mode, water may form and drip from the heat exchanger

of outdoor unit.

■

During defrosting mode, water on the heat exchanger of outdoor unit

evaporates and water vapor may be emitted.

Flow temp. controller (FTC)5

CONTENTS

1. System ..............................................................................................56

2. Electrical work...................................................................................58

3. Before test run ..................................................................................65

4. Remote controller operation .............................................................66

5. Initial setting by remote controller .....................................................74

6. Deﬁ nition of analog signal by remote controller ................................76

(Required only for ANALOG TEMP. system)

7. Troubleshooting ................................................................................77

8. Outlines and dimensions ..................................................................89

5555

1. System

To start, check your system type by following the ﬂ ow chart below.(FTC can be used for 3 types of systems.)

Start

Heat Pump switch ON/OFF and the operation mode change is done…

By external signals from local controller (non-voltage contact signals)

‘Target flow temperature’ is set…

By external signals from local controller (Analog signal:4-20mA/ 1-5V/ 0-10V)

Your system is ANALOG TEMP. SYSTEM.

By remote controller

Your system is

SIMPLE SYSTEM.

Your system is

BASIC SYSTEM.

SIMPLE SYSTEM BASIC SYSTEM ANALOG TEMP. SYSTEM

By Non-voltage Contact signals

FTC PCB BOX FTC PCB BOX FTC PCB BOX

ON/OFF

Operation mode

Target flow temp.

Remote controller

End user interface

Target flow temp.

Remote controller

To preset

- target temp. foreach mode

- target temp. parameters

ON/OFF

Operation mode

- Heating

- Heating ECO

- Hot water

- Anti freeze

- Cooling

System controller

(locally supplied)

End user interface

Remote controller

Topreset

- analog signal parameters

By Non-voltage Contact signals

ON/OFF

Operation mode

- Heating +

- Cooling

Target flow temp. Analog signal

4-20mA/1-5V/0-10V

+In this system,

• Heating ECO mode of FTC is

• It is NOT necessary to switch

System controller

(locally supplied)

End user interface

not available.

operation mode to realize Hot water mode, Anti freeze mode and Heating ECO mode. Simply change the target temp. by Analog signal.

Refer to the relevant sections for details according to your system type.

System System diagram

BASIC

Outdoor unit

SPLIT type

Local controller ON/OFF

 

MODE

TH1 TH2

FTC Outdoor unit FTC

Remote controller (PAR-W21MAA)

Power supplies

2.1

2.1.1

Thermistor (TH1, TH2)

2.2.1

2.2.2

Switch setting

2.2

External input

2.5.1

External output

2.6

ANALOG TEMP.

PACKAGED type

SPLIT type

PACKAGED type

Local controller ON/OFF

 

MODE

Local controller ON/OFF

 

MODE

Local controller ON/OFF

 

MODE

Local controller ON/OFF

 

Temp.

Local controller ON/OFF

 

Temp.

Local controller ON/OFF

 

Temp.

TH1 TH2

TH1

TH1 TH2

TH1

FTC Outdoor unit FTC

Remote controller (PAR-W21MAA)

FTC Outdoor unit FTC

Remote controller (PAR-W21MAA)

FTC Outdoor unit FTC

Remote controller (PAR-W21MAA)

FTC Outdoor unit FTC

Remote controller (PAR-W21MAA)

FTC Outdoor unit FTC

Remote controller (PAR-W21MAA)

FTC Outdoor unit FTC

Remote controller (PAR-W21MAA)

2.1

2.1.2

2.1

2.1.1

2.1

2.1.2

2.1

2.1.1

2.1

2.1.2

2.1

2.1.1

2.2.1

2.2.2

2.2.1

2.2.2

2.2.1

2.2.2

2.2.1

2.2

2.5.1

2.5.2

2.5.1

2.5.2

2.5.1

2.5.2

2.6

SIMPLE

SPLIT type

PACKAGED type

Local controller ON/OFF

 

Temp.

TH1

TH1 TH2

TH1

FTC Outdoor unit FTC

Remote controller (PAR-W21MAA)

FTC Outdoor unit FTC

Remote controller (PAR-W21MAA)

FTC Outdoor unit FTC

Remote controller (PAR-W21MAA)

FTC Outdoor unit FTC

Remote controller (PAR-W21MAA)

FTC Outdoor unit FTC

Remote controller (PAR-W21MAA)

2.1

2.1.2

2.1

2.1.1

2.1

2.1.2

2.1

2.1.1

2.1

2.1.2

2.2.1

2.2.2

2.2.1

2.2.2

2.2.1

2.2

SPLIT type : the standard outdoor unit without a plate HEX(Refrigetant-water HEX) inside PACKAGED type : the Air to Water outdoor unit with a plate HEX(Refrigetant-water HEX) inside

2.5.1

2.5.2

2.6

—

2.6

—

2.6

—

2.6

—

2. Electrical work

2.1. FTC (Photo. 2-1)

1. Remove the cover.

2. Wire the power cable and control cable separately through the respective wiring inlets given in the photo.

• Make sure to put screws tightly.

Inlet for control cable

Inlet for power

Clamp

FTC / Outdoor unit connecting terminals

Earth terminal

Photo.2-1

2.1.1. FTC unit power supplied from outdoor unit

The following connection patterns are available.

The outdoor unit must be powered properly.(Details are shown in its installation manual.)

ABC

S1 S2 S3

A Outdoor unit power supply B Earth leakage breaker C Wiring circuit breaker or isolating switch D Outdoor unit E FTC unit/outdoor unit connecting cables F FTC unit

TB6

S2 S3S1

E: FTC unit/outdoorunit

connecting cables

Earth cable

Photo.2-2

FTC unit model PAC-IF021B-E Wiring Wire No. × size (mm²)

Circuit rating

*1. Max. 80 m *2. The ﬁ gures are NOT always against the ground. S3 terminal has DC 24 V against S2 terminal. However between S3 and S1, these terminals are not electrically insulated by the transformer or other device.

FTC unit-Outdoor unit 3× 1.5 (polar) FTC unit-Outdoor unit earth 1 × Min.1.5 FTC unit-Outdoor unit S1-S2 AC 230 V FTC unit-Outdoor unit S2-S3 DC24 V

Notes: 1. Wiring size must comply with the applicable local and national codes.

2. Power supply cables and FTC unit/outdoor unit connecting cables shall not be lighter than polychloroprene sheathed ﬂ exible cable. (Design 60245 IEC 57)

3. Install an earth wire longer than other cables.

2.1.2. Separate FTC unit/outdoor unit power supplies

The following connection patterns are available. The outdoor unit power must be powered properly(Details are shown in its installation manual).

GEB

S1 S2 S3

L N

S1 S2 S3

A Outdoor unit power supply B Earth leakage breaker C Wiring circuit breaker or isolating switch D Outdoor unit E FTC unit/outdoor unit connecting cables F FTC unit G FTC unit power supply

If the FTC and outdoor units have separate power supplies, refer to the table below.

Separate power supply speciﬁ cations

Photo.2-3

FTC unit controller connector (CNS2) connection change

Outdoor unit DIP switch settings (when using separate FTC unit/outdoor unit power supplies only)

TB6

CNS2

Disconnected

ON 3 OFF 1 2 Set the SW8-3 to ON.

S2 S3S1

(SW8)

Power SupplyCables

FTC unit model PAC-IF021B-E FTC unit power supply ~/N (Single Phase), 50 Hz, 230 V FTC unit input capacity

Main switch (Breaker)

)

FTC unit power supply & earth 3 × Min. 1.5

(mm

FTC unit-Outdoor unit *2 2 × Min. 0.3

Wiring

FTC unit-Outdoor unit earth –

Wire No. ×

size

*1 16 A

FTC unit L-N *3 AC 230 V FTC unit-Outdoor unit S1-S2 *3 –

rating

Circuit

FTC unit-Outdoor unit S2-S3 *3 DC24 V

*1. A breaker with at least 3.0mm contact separation in each pole shall be provided. Use earth leakage breaker (NV). *2. Max. 120 m

*3. The ﬁ gures are NOT always against the ground.

Notes: 1. Wiring size must comply with the applicable local and national code.

2. Power supply cables and FTC unit/outdoor unit connecting cables shall not be lighter than polychloroprene sheathed ﬂ exible cable. (Design 60245 IEC 57)

3. Install an earth wire longer than other cables.

E: FTC unit/outdoor unit

connecting cable

2.2. Connecting thermistor cable

Connect the thermistor 2 for the FTC controller.

2.2.1.

Connecting the actual ﬂ ow water temp. thermistor

(TH1)

Connect the thermistor for the actual ﬂ ow water temp. to 1 and 2 on the terminal block (TB61) on the FTC controller.

When the thermistor cables are too long, cut them at the appropriate length. Do not bind them in the FTC unit.

<Thermistor position> Put TH1 on

piping (water

water

outlet

side).

Note: Be sure to attach the TH1 where it detects Flow

temp.(Water oulet side) correctly.

2.2.2. Connecting the pipe temp. thermistor (TH2)

Connect the thermistor for the refrigerant pipe temp. to 3 and 4 on the terminal block (TB61) on the FTC (PCB).

For packaged Outdoor unit : It is not necessary to connect TH2. For split Outdoor unit : Connect TH2.

When the thermistor cables supplied with FTC are too long, cut them to the appropriate length. Do not bind them in the FTC unit.

TB61

TH1 TH2

TB62

Wired remote controller cable

Photo.2-4

<Thermistor position> Put the TH2 on

refrigerant

piping (

Liquid

side).

It is better to protect the thermistor with heat insulating materials not to be affected by the ambient temperature.

Note: Be sure to attach the TH2 where it detects Refrigerant piping temp. (Liquid side) correctly.

Caution:

Do not route the thermistor cables together with power cables. The sensor part of the thermistor should be installed where user must not touch. (It is separated by the supplementary insulation from where user may touch.)

Outdoor unit TH1 TH2 TH5 PACKAGED type ΟХ Х SPLIT type ΟΟХ

Ο: Necessary. Connect the thermistor. Х: Not necessary. The thermistor is not needed to connect.

PACKAGED type outdoor unit SPLIT type outdoor unit

Water OUTLET side

Outdoor unit

TH1

FTC

TH2: not necessary

Outdoor unit

Refrigerant LIQUID side

FTC

Water OUTLET side

TH1

Water piping

Packaged type (with a refrigerant-water HEX inside)

*1 Refrig

TH2

erant-water HEX

<Thermistor Characteristic graph> Refer to section 4.2 of I/F.

IT type

SPL (without refrigerant-water

HEX inside)

Refrigerant piping

TH2

*1 Refrig

Water piping

erant-water HEX





30120

83.5

3030









2.3. Connecting the wired remote controller

2.3.1.

Connecting the wired remote controller cable to FTC

Connect the wired remote controller cable to 5 and 6 on the terminal block (TB62) on the FTC controller.(Photo. 2-4) Wiring wire No.×size(mm

The 5m wire is attached as an accessory. Max. 500 m

) : 2×0.3(Non-polar)

Wiring size must comply with the applicable local and national











codes.

Circuit rating: DC12V

Circuit rating is NOT always against the ground.

Fig. 2-1



B-1. B-2.









Fig. 2-2

-3

Fig. 2



BTB



2.3.2. For wired remote controller

1) Installing procedures

(1)

Select an installing position for the remote controller. (Fig. 2-1)

► Procure the following parts locally:



2 piece switch box Thin copper conduit tube Lock nuts and bushings

[Fig.2-1]

Remote controller proﬁ le

Required clearances surrounding the remote controller

Installation pitch

(2)Seal the service entrance for the remote controller cable with

putty to prevent possible invasion of dew drops, water, cockroaches or insects. (Fig. 2-2)

For installation in the switch box

For direct installation on the wall, select one of the follow-

ings:

• Prepare a hole through the wall to pass the remote controller cable (in order to take out the remote controller cable from the back), then seal the hole with putty.

• Take out the remote controller cable through the cut-out upper case, then seal the cut-out notch with putty.

B-1. To lead the remote controller cable from the back of

the controller

B-2. To take out the remote controller cable through the up-

per portion

[Fig.2-2]

Wall

Conduit

Lock nut

Bushing

Switch box

Remote controller cable

Seal with putty

Wood screw

2) Connecting procedures (Fig. 2-3)

Connect the remote controller cable to the terminal block.

To TB62 No.5 and 6 on the FTC unit

TB6 (No polarity)

2.4. Switch setting of FTC

Set the dip switch on the FTC (PCB) according to the following table.

System ON/OFF

BASIC External input

ANALOG TEMP.

BASIC and SIMPLE

SIMPLE Wired remote controller Wired remote controller Wired remote controller SPLIT type OFF OFF OFF OFF OFF OFF

Input

(non-voltage contact) External input

(non-voltage contact) External input or

4-20mA *1 External input or

1-5V *2 External input External input

External input and Wired remote controller

*1: 4-20mA····OFF: 0~2mA *2: 1-5V····OFF: 0~0.5V *3: The command from the external input is prior to the one from the wired remote controller. *4: SPLIT type : the standard outdoor unit without a plate HEX(refrigerant-water) inside. PACKAGED type : the Air to Water outdoor unit with a plate of HEX(refrigerant-water) inside

OTHER SWITCH SETTING

SW1-3 Prohibition of Cooling mode

SW1-3=OFF : Operation mode Heating/HeatingECO/HotWater/Anti-freeze/Cooling SW1-3=ON : Operation mode Heating/HeatingECO/HotWater/Anti-freeze

SW1-4 SW3-4,5,8 Not in use. Set to OFF. (Initial setting) SW3-7 Not in use. Set to ON. (Initial setting)

Change mode Input

External input (non-voltage contact)

(non-voltage contact)

External input and *3 Wired remote controller

Change TEMP. Input

DIP switch on PCB SW2-1~8, SW3-1~3

Wired remote controller SPLIT type ON OFF OFF OFF OFF OFF

4-20mA SPLIT type OFF ON OFF OFF ON ON

1-5V SPLIT type OFF ON OFF OFF OFF ON

0-10V SPLIT type ON ON OFF OFF OFF OFF

DIP switch on PCB SW2-1~8, SW3-1~3

Wired remote controller SPLIT type OFF OFF OFF OFF OFF OFF

Outdoor unit *4 SW1-1 SW1-2 SW1-5 SW1-6 SW6-1 SW6-2

SPLIT type ON OFF OFF ON OFF OFF PACKAGED type ON OFF ON ON OFF OFF

PACKAGED type ON OFF ON OFF OFF OFF

PACKAGED type OFF ON ON OFF ON ON

PACKAGED type OFF ON ON OFF OFF ON

PACKAGED type ON ON ON OFF OFF OFF SPLIT type OFF OFF OFF ON OFF OFF PACKAGED type OFF OFF ON ON OFF OFF

PACKAGED type OFF OFF ON OFF OFF OFF

SW6

TB61

SW3-6 Logic of Forced Comp. OFF external signal(TB142 5-6)

SW3-6 TB142 No.5-6 input Item

OFF(open) Normal

OFF

ON(short) Forced Comp. OFF OFF(open) Forced Comp. OFF

ON(short) Normal

SW1-6,7,8 Set temperature range

TH1 TH2

Photo.2-5

SW1-6=OFF Set temperature range with wired remote controller SW1-6=ON Set temperature table with DIP switch of FTC

SW1-6 SW1-7 SW1-8 Temperature range with wired remote controller Temperature table

Heating/HeatingECO/Hot Water Anti-Freeze Cooling OFF OFF OFF Upper 55 ˚C / lower 20 ˚C Upper 45 ˚C / lower 5 ˚C Upper 25 ˚C / lower 5 ˚C— OFF ON OFF Upper 60 ˚C / lower 20 ˚C *1 Upper 45 ˚C / lower 5 ˚C Upper 25 ˚C / lower 5 ˚C— OFF OFF ON Upper 50 ˚C / lower 20 ˚C Upper 45 ˚C / lower 5 ˚C Upper 25 ˚C / lower 5 ˚C— OFF ON ON — — — — ON OFF OFF — — — Table ON ON OFF — — — Table ON OFF ON — — — — ON ON ON — — — —

*1. Don’t use this setting when you use the standard outdoor unit without a plate HEX(Refrigerant-water) inside.

SW2-1~8, SW3-1~3

1 2

SW1 SW2

SW3

SW2-1~8 SW3-1~3 Fixed set temperature with DIP switch of FTC (Available when SW1-6 is ON) SW2-1~3 Fixed set temperature for Heating mode (Table1~2 depends on SW1-7,8.)

SW2-1 SW2-2 SW2-3 Table

Table

OFF OFF OFF 25 ºC 25 ºC ON OFF OFF 30 ºC 30 ºC OFF ON OFF 35 ºC 35 ºC ON ON OFF 40 ºC 40 ºC OFF OFF ON 45 ºC 45 ºC ON OFF ON 50 ºC 50 ºC OFF ON ON 55 ºC 55 ºC ON ON ON 60 ºC *1 60 ºC *1

The selectable temperature range for Heating mode depends on outdoor unit type. *1 Do not use this setting when you use the standard outdoor unit without a plate HEX(refrigerant-water) inside.

SW2-4~6 Fixed set temperature for Hot Water mode (Table1~2 depends on SW1-7,8.)

SW2-4 SW2-5 SW2-6 Table

Table

OFF OFF OFF 46 ºC 25 ºC ON OFF OFF 48 ºC 30 ºC OFF ON OFF 50 ºC 35 ºC ON ON OFF 52 ºC 40 ºC OFF OFF ON 54 ºC 45 ºC ON OFF ON 56 ºC 50 ºC OFF ON ON 58 ºC 55 ºC ON ON ON 60 ºC *1 60 ºC *1

The selectable temperature range for Hot Water mode depends on outdoor unit type. *1 Do not use this setting when you use the standard outdoor unit without a plate HEX(refrigerant-water) inside.

SW2-7,8 Fixed set temperature for Anti-freeze mode (Table1~2 depends on SW1-7,8.)

SW2-7 SW2-8 Table

Table

OFF OFF 5 ºC 5 ºC ON OFF 10 ºC 10 ºC OFF ON 15 ºC 15 ºC ON ON 20 ºC 20 ºC

SW3-1~3 Fixed set temperature for Cooling mode(Table1~2 depends on SW1-7,8.)

SW3-1 SW3-2 SW3-3 Table

Table

OFF OFF OFF 7 ºC 7 ºC ON OFF OFF 10 ºC 10 ºC OFF ON OFF 12 ºC 12 ºC ON ON OFF 15 ºC 15 ºC OFF OFF ON 18 ºC 18 ºC ON OFF ON 20 ºC 20 ºC OFF ON ON 22 ºC 22 ºC ON ON ON 25 ºC 25 ºC

2.5. Connecting external input

FTC can be operated by following external input.

2.5.1 EXTERNAL INPUT ( Contact signal )

TB142 OFF ON Remark 1-2 (IN1) — — Not in use 3-4 (IN2) — — Not in use 5-6 (IN3) Normal Forced Comp. OFF SW3-6=OFF

Forced Comp. OFF Normal SW3-6=ON 7-8 (IN4) OFF Cooling 10-11 (COM-IN5) OFF Heating 10-12 (COM-IN6) OFF Heating ECO *1

10-13 (COM-IN7) OFF Hot Water 10-14 (COM-IN8) OFF Anti-Freeze

*1 Heating ECO mode sets the set temperature depending on the outdoor temperature.

TB142

3 5 7 9 11 131

Forced Comp. OFF 

Cooling 

Heating  HeatingECO  Hot Water  Anti-Freeze 

4268101214

At site

FTC

1 2 3 4 5 6 7 8

9 10 11 12 13 14

TB142

2.5.2 EXTERNAL INPUT ( analog signal ) 4-20mA / 1-5V / 0-10V

Connect the transmission cables to No. 3 and 4 on the terminal block (TB62). No. 3 on the terminal block(TB62) : Plus side No. 4 on the terminal block(TB62) : Minus side (Reference side)

Switch setting

Input Outdoor unit SW1-1 SW1-2 SW1-5 SW1-6 SW6-1 SW6-2 4-20mA SPLIT type OFF ON OFF OFF ON ON

PACKAGED type OFF ON ON OFF ON ON

1-5V SPLIT type OFF ON OFF OFF OFF ON

PACKAGED type OFF ON ON OFF OFF ON

0-10V SPLIT type ON ON OFF OFF OFF OFF

PACKAGED type ON ON ON OFF OFF OFF

4-20mA / 1-5V / 0-10V setting

FLOW TEMP.

No.2 Temp.

No.1 Temp.

ANALOG SIGNAL

4-20mA 1-5V

0-10V

Stop

0mA --4mA --------------- 20mA 0V-------1V------------------- 5V

0V------------------10V

4-20mA/1-5V/0-10V

Wired remote controller

FTCAt site

1 2 3 4 5 6

TB62

( (

Refer to the section 8 for details about No1, 2 Temp. The selectable set temperature range depends on SW1-7, 8.

Caution:

TB141

Photo.2-6

The external input signals are separated by basic insulation from power supply for the unit. The external input signals should be separated by supplementary insulation from where user may touch in case that it is installed where user may touch. Connect the terminals by using the ring terminals and also insulate the cables of adjoining terminals when wiring to terminal block.

2.6. Connecting external output (Photo. 2-6)

TB141 Item OFF ON 1-2 (OUT1) X1 Operation Output OFF ON 3-4 (OUT2) X2 Error Output Normal Error 5-6 (OUT3) X3 Comp. Output OFF ON 7-8 (OUT4) X4 Defrost Output OFF ON

At site

9-10 (OUT5) X5 Mode(Cooling) Output OFF ON 11-12 (OUT6) X6 Mode(Heating/HeatingECO/Hot Water/

OFF ON

Anti-Freeze) Output

13-14 (OUT7) X7 — — —

Note :

External output signals are separated by basic insulation from other circuit of interface.

Caution :

When 2 or more external outputs are used, the power supply on the output side should be the same.

1FTC

2 3X24 5X36 7X48 9

TB141

357911131

X6 X7

6 8 10 12 14

1413121110

TB141

2.7. Wiring speciﬁ cation of External output / External input

Locally supplied parts

Item Name Model and speciﬁ cations External output function External output signal wire Use sheathed vinyl coated cord or cable.

Max. 50m Wire type : CV, CVS or equivalent Wire size : Stranded wire 0.5mm

to 1.25mm

Solid wire: {0.65mm to {1.2mm

Display lamp, etc. Non-voltage Contact AC220-240V (DC30V), 1A or less

*Connect the surge absorber according to the load at site.

External input function External input signal wire Use sheathed vinyl coated cord or cable.

Max. 10m Wire type : CV, CVS or equivalent Wire size : Stranded wire 0.5mm

to 1.25mm

Solid wire : {0.65mm to {1.2mm

Switch Non-voltage "a" contact signals

Remote switch : minimum applicable load DC 12V, 1mA

3. Before test run

3.1. Check

After completing installation and the wiring and piping of the local application and outdoor units, check for refrigerant leakage, looseness in the power supply or control wiring, wrong polarity, and no disconnection of one phase in the supply. Use a 500-volt megohmmeter to check that the resistance between the power supply terminals and ground is at least 1.0MΩ.

Warning:

Do not use the system if the insulation resistance is less than 1.0MΩ.





Caution:

Do not carry out this test on the control wiring (low voltage circuit) terminals.

ERROR CODE

3.2. Self-check

Turn on the power.

Press [CHECK] button twice.

Press [CHECK] button twice to ﬁ nish self-check.

CHECK button BIC : FTC unit OC : Outdoor unit CCheck code

Check code Symptom P1 Flow water (TH1) sensor error

TEMP.

ON/OFF



P2 Refrigerant liquid Pipe (TH2) sensor error P6 Freezing/Overheating protection operation Fb FTC unit control system error (memory error, etc.) E0~E5 Signal transmission failure between remote controller and FTC. E6~EF Signal transmission failure between outdoor unit and FTC. – – – – No trouble generated in the past. FFFF No corresponding unit U*, F* Outdoor unit failure. Refer to the outdoor unit wiring diagram.

For description of each LED(LED1~5) provided on the FTC, refer to the following table.

LED 1 (Power for microcomputer) Indicates whether control power is supplied. Make sure that this LED is always lit. LED 2 (Power for remote controller) Indicates whether power is supplied to the remote cotroller. This LED lights only in

the case of the FTC unit which is connected to the outdoor unit refrigerant address “0“. LED 3(Communication between FTC and outdoor unit)

Indicates state of communication between the FTC and outdoor unit. Make sure that

this LED is always blinking. LED 4 — LED 5 —

4. Remote controller operation

4.1 Parts name

■

Wired Remote-Controller

Display Section

For purposes of this explanation, all parts of the display are shown. During actual operation, only the relevant items will be displayed.

Identiﬁ es the current operation

Shows the operating mode, etc. * Multi language display is

supported.

“Centrally Controlled” indicator

Indicates that operation of the remote controller has been prohibited by a master controller.

“Timer is Off” indicator

Indicates that the timer is off.

Temperature Setting

Shows the target temperature.

Operation Section

Set Temperature buttons

Down Up

Day-of-Week

Shows the current day of the week.

Time/Timer Display

Shows the current time, unless the simple or Auto Off timer is set. If the simple or Auto Off timer is set, shows the time remaining.

TIME SUN MON TUE WED THU FRI SAT TIMER AFTER

ERROR CODE

˚F˚C

ON/OFF indicator

Indicates if timer is set ON/ OFF.

OFF

AFTER

˚F˚C

FUNCTION

WEEKLY

“Locked” indicator

Indicates that remote controller buttons have been locked.

Timer indicators

The indicator comes on if the corresponding timer is set.

Error indicator

Comes on when error occurs.

Temperature indicator

Shows the current water temperature.

(Power On indicator)

Indicates that the power is on.

ON/OFF button

Setting change button

Timer Menu button (Monitor/Set button)

Mode button (Return button)

CIR. WATER button

(<Enter> button)

Set Time buttons

TEMP.

ON/OFF

Back

Ahead

Timer On/Off button

(Set Day button)

Opening the lid

Not available

TEST run function is not available with this FTC unit.

Self check(Clear) button

Note:

● “PLEASE WAIT” message This message is displayed for approximately 3 minutes when power is supplied to the FTC unit or when the unit

is recovering from a power failure.

● “NOT AVAILABLE” message This message is displayed if a button is pressed to operate a function that the FTC unit does not have, or a func-

tion that is not available due to the setting.

Function Selection of

remote controller



Standard Control Screens

OFF ON

TEMP.

˚C

TIME SUN

Set Day/Time

TIME SUN

˚C

Day of the Week & Time

˚C

ON/OFF

display

Day of the Week Setting

Time Setting

For details on setting the language for the remote controller display, refer to 4.6. Function Selection. The initial language setting is English.

● Function Selection of remote controller: Set the functions and ranges available to the

remote controller (timer functions, operating restrictions, etc.)

˚F˚C

● Set Day/Time: Set the current day of the week or time.

● Standard Control Screens:

View and set the air conditioning system’s operating status

: Hold down both the Mode button 2 and the Timer On/Off

button 9 for 2 seconds.

: Press either of the Set Time buttons (

: Press the Mode button 2.

or ) 1.

4.2 Setting the day of the week and time

1. Press the or Set Time button 1 to show display 2.

2. Press the Timer On/Off (Set Day) button 9 to set the day. * Each press advances the day shown at 3 : Sun → Mon → ... → Fri → Sat.

3. Press the appropriate Set Time button 1 as necessary to set the time.

* As you hold the button down, the time (at 4) will increment

first in one-minute intervals, then in ten-minute intervals, and then in 1-hour intervals.

4. After making the appropriate settings at Steps 2 and 3, press the button 4 to lock in the values.

Note: The day and time will not appear if clock use has been disabled at Function Selection of remote controller.

TEMP.

˚C

ON/OFF

4.3 Operation

Available items are different depending on your system. (Refer to section 3.)

4.3.1 Switching

■ Press the ON/OFF button 1.

• The ON lamp 1 and the display area come on.

Note: When the unit restarts, the previous settings are recalled as follows.

Remote controller setting Mode Last operation mode Temperature setting Last set temperature

■

Press the ON/OFF button

again.

• The ON lamp 1 and the display area go dark.

Note: Even if you press the ON/OFF button to restart the system while turning down the operation, the outdoor unit will not start for about 3 minutes. This is to prevent the internal components from being damaged.

4.3.2. Mode select

Press operation mode ( ) button2 and select operation mode.

Heating mode (Space heating) Heating ECO mode (Space heating with weather compensation *1) Hot water mode (Sanitary hot water) Anti freeze mode (Heating to prevent water pipe from freezing) Cooling mode (Space cooling)

*1 Target ﬂ ow temp. varies according to the outdoor temperature.

(Refer to 5. for setting.)

3 2

2 3

˚C

TEMP.

˚C

ON/OFF

4.3.3. Temperature setting

► To decrease the target temperature:

Press

button 3 to set the desired temperature. The selected temperature is displayed 3.

► To increase the target temperature:

Press

button 3 to set the desired temperature. The selected temperature is displayed 3.

Note: Heating ECO mode sets the set temperature depending on the outdoor temperature.

4.4. Other Functions

4.4.1.

Locking the Remote Controller Buttons (Operation function limit)

■ If you wish, you can lock the remote controller buttons. You can use the Function Selection of remote controller to select which type of lock to use.

(For information about the lock type, refer to 4.5, item[2].) Speciﬁ cally, you can use either of the following 2 lock types.

1 Lock All Buttons: Locks all of the buttons on the remote controller. 2 Lock All Except ON/OFF: Locks all buttons other than the ON/OFF button.

Note: The “Locked” indicator appears on the screen to indicate that buttons are currently locked.

˚C

TEMP.

TIME SUN

Lock Indicator

1. While holding down the CIR. WATER button 4, press and hold down the ON/OFF button 1 for 2 seconds. The “Locked” indication appears on the screen (at 1), indicating that the lock is now

FUNCTION

˚C

ON/OFF

1 4

engaged.

* If locking has been disabled in Function Selection of remote

controller, the screen will display the “Not Available” message when you press the buttons as described above.

FUNCTION

˚C

• If you press a locked button, the “Locked” indication (at 1) will

blink on the display.

˚C

FUNCTION

1. While holding down the CIR. WATER button 4, press and hold down the ON/ OFF button 1 for 2 seconds—so that the “Locked” indication disappears from the screen (at 1).

˚C

4.4.2. Error Codes indication

ERROR CODE

ON lamp

Indoor Unit’s

ON/OFF

Error Code Indoor Unit No.

(Blinking)

Refrigerant Address

If you have entered contact number to be called in the event of a problem,

Alternating Display

the screen displays this number. (You can set this up under Function Selection of remote controller. For information, refer to 4.5.)

●

If the ON lamp and error code are both blinking: This means that the air conditioner is out of order and operation has been

stopped (and cannot resume). Take note of the indicated unit number and error code, then switch off the power to the air conditioner and call your dealer or servicer.

When the Check button is pressed:

ERROR CODE

˚C

ON/OFF

CALL:XXXX XXX:XXX

ON/OFF

Error Code

●

If only the error code is blinking (while the ON lamp remains lit): Operation is continuing, but there may be a problem with the

system. In this case, you should note down the error code and then call your dealer or servicer for advice.

* If you have entered contact number to be called in the event of a problem, push the Check button to display it on the screen.

(You can set this up under Function Selection of remote controller. For information, refer to 4.5.)

4.5. Function Selection

Various remote controller functions are selectable in the remote controller function selection mode. Change setting when needed.

Item 1 Item 2 Item 3

1. Change language (“CHANGE LANGUAGE”)

2. Function limit (“FUNCTION SELECTION”)

3. Mode selection (“MODE SELECTION”)

4. Display change

(“DISP MODE SETTING”)

Language setting to display • Some European languages are selectable.

(1) Operation function limit setting (operation lock)

(“LOCKING FUNCTION”)

(2) Use of operation mode setting (“SELECT

MODE”)

(3) Temperature range limit setting (“LIMIT TEMP

FUNCTION”)

(1) Remote controller main/sub setting

(“CONTROLLER MAIN/SUB”)

(2) Use of clock setting (“CLOCK”) • To select the use or non-use of clock function (3) Timer function setting (“TIMER MODE”) • To select the timer type (4) Contact number setting in case of fault

(“CALL.”)

(5) Temperature offset setting(“TEMP OFFSET

FUNCTION”)

(1) Temperature display °C/°F setting (“TEMP

MODE °C/°F”)

(2) Water temperature display setting(“WATER

TEMP. DISP. SELECT”)

• To invalidate some functions.

• Setting the use or non-use of operation mode

• Setting the temperature adjustable range (maximum, minimum)

• Selecting main or sub remote controller

* When 2 remote controllers are connected to 1

group, 1 controller must be set to sub.

• Contact number display in case of error

• To select the telephone number

• To select the use or non-use of the water temperature offset funstion

• To select the temperature unit (°C or °F) to display

• To select the use or non-use of the display of “actual

ﬂ ow water temperature”

[Function selection flow chart] Setting language(English)

Normal display

Hold down the () button and press the () button for 2 seconds.

Change Language

Function selection





English

Germany Spanish



Swedish French

Russian

Italian



OFF No1



No2

Dot display







OFF … Operation lock setting is not used.(Initial setting) No1 … Operation lock setting for all buttons except ON/OFF is active. No2 … Operation lock setting for all button is active.

TEMP.



ON/OFF

  





Present setting:Select mode=OFF Select mode = OFF

OFF







Present setting:Select mode=ON

Select mode = ON



















OFF ON

Select mode = OFF (Initial setting)

• All operation modes are available in this mode.

Select mode = ON

• Selected mode is skipped.

OFF ···· Skipped ON ···· Available



Present setting:Limit TEMP. = OFF

Limit TEMP. = OFF

OFF



Present setting:Limit TEMP. = ON

Limit TEMP. = ON











Lower limit Upper limit

Limit TEMP. = OFF (Initial setting)

• Water temp. setting range : standard

Limit TEMP. = ON

• Water temp. setting range : limited

Lower limit ···· sets the lowest water Upper limit ···· sets the highest water

* “LIMIT TEMP. HOT WATER” mode

( )

temperature. temperature.

also limits the setting range in the “Heating” mode.

Mode selection

Display mode setting









MAIN ····The remote controller will be the main controller.(Initial setting) SUB ····The remote controller will be the sub controller.





OFF

ON ····The crock function can be used.(Initial setting) OFF ····The clock function can not be used.









TIMER MODE OFF : Timer mode can not used.(Initial setting) WEEKLY TIMER : Weekly timer can be used.

AUTO OFF TIMER : Auto off timer can be used. SIMPLE TIMER : Simple timer can be used.

* These are timer mode.



OFF



OFF ····The set contact numbers are not displayed in case of error. (Initial setting) ON ····The set contact numbers are displayed in case of error.





OFF







°C



°F

OFF



ON ····The offset function of the water temperature can be used. (Initial setting) OFF ····The offset function of the water temperature can not be used.

°C ···· The temperature unit “°C” is used.(Initial setting) °F ····The temperature unit “ °F” is used.

OFF ····Water temperature is displayed.(Initial setting) ON ····Water temperature is not displayed.

[Detailed setting]

[4]-1 CHANGE LANGUAGE setting

The language that appears on the dot display can be selected.

• Press the [ MENU] button G to change the language.

English (GB), 2 German (D), 3 Spanish (E), 4 Russian (RU),

Italian (I), 6 French (F), 7 Swedish (SW)

Refer to the dot display table.

[4]-2 Function selection setting

(1) Operation function limit setting (operation lock)

• To switch the setting, press the [ ON/OFF] button D.

no1: Operation lock setting is made on all buttons other than the

[

no2: Operation lock setting is made on all buttons.

OFF (Initial setting value): Operation lock setting is not made.

ON/OFF] button I.

* To make the operation lock setting valid on the normal

screen, it is necessary to press buttons (Press and hold down the [CIR.WATER] A and [

ON/OFF] buttons

at the same time for 2 seconds.) on the normal screen after the above setting is made.

(2) Use of operation mode setting When the remote controller is connected to the unit that has the operation mode, the following settings can be made.

• To switch the setting, press the [ SELECT HEATING

ON· ....HEATING mode can be selected.

OFF ....HEATING mode is skipped.

SELECT HEATING ECO

ON· ....HEATING ECO mode can be selected.

OFF ....HEATING ECO mode is skipped.

SELECT HOT WATER

ON· ....HOT WATER mode can be selected.

OFF ....HOT WATER mode is skipped.

SELECT ANTI-FREEZE

ON· ....ANTI-FREEZE mode can be selected.

OFF ....ANTI-FREEZE mode is skipped.

SELECT COOLING

ON· ....COOLING mode can be selected.

OFF ....COOLING mode is skipped.

SELECT MODE OFF(Initial setting value)

ON/OFF] button D.

The all operation mode is displayed when the mode is selected.

(3) Temperature range limit setting After this setting is made, the temperature can be changed within the set range.

• To switch the setting, press the [ ON/OFF] button D. LIMIT TEMP HOT WATER MODE:

The temperature range can be changed on hot water / heating mode.

LIMIT TEMP ANTI-FREEZE MODE:

The temperature range can be changed on anti-freeze mode.

LIMIT TEMP COOLING MODE:

The temperature range can be changed on cooling mode.

OFF (initial setting):

The temperature range limit is not active.

* When the setting other than OFF is made, the

temperature range limit setting on heating, hot water, anti-freeze, and cooling mode is made at the same time. However, the range cannot be limited when the set temperature range has not changed.

• To increase or decrease the temperature, press the [ TEMP. (

) or ( )] button F.

• To switch the upper limit setting and the lower limit setting, press the [

INITIAL SETTING] button H. The selected

setting will blink and the temperature can be set.

[4]-3 Mode selection setting

(1) Remote controller main/sub setting

• To switch the setting, press the [ ON/OFF] button D. Main: The controller will be the main controller.

Sub: The controller will be the sub controller.

(2) Use of clock setting

• To switch the setting, press the [ ON: The clock function can be used.

OFF: The clock function cannot be used.

ON/OFF] button D.

(3) Timer function setting

• To switch the setting, press the [

ON/OFF] button D

(Choose one of the followings.).

WEEKLY TIMER:

The weekly timer can be used.

AUTO OFF TIMER:

The auto off timer can be used.

SIMPLE TIMER:

The simple timer can be used.

TIMER MODE OFF(Initial setting):

The timer mode cannot be used.

* When the use of clock setting is OFF, the “WEEKLY

TIMER” cannot be used.

(4) Contact number setting for error situation

• To switch the setting, press the [ ON/OFF] button D. CALL OFF:

The set contact numbers are not displayed in case of error.

CALL **** *** ****:

The set contact numbers are displayed in case of error. CALL_: The contact number can be set when the display is as

shown above.

• Setting the contact numbers To set the contact numbers, follow the following procedures. Move the blinking cursor to set numbers. Press the [ TEMP. ( right (left). Press the [ CLOCK (

) and ( )] button F to move the cursor to the

) and ( )] button C

to set the numbers.

(5) Use of water temperature offset function

• To switch the setting, press the [ ON:

1 2

The water temperature offset function can be used. The water temperature offset function cannot be used.

OFF:

ON/OFF] button D.

* Refer to page 23 for details of offset function.

[4]-4 Display change setting

(1) Temperature display °C/°F setting

• To switch the setting, press the [ °C: The temperature unit °C is used.

°F: The temperature unit °F is used.

ON/OFF] button D.

(2) Water temperature display setting

• To switch the setting, press the [ ON: Water temperature is displayed.

OFF: Water temperature is not displayed.

ON/OFF] button D.

[Dot display table]

Selecting language

Waiting for start-up Operation mode Heating

Heating ECO Hot water Anti-freeze Cooling Stand by

(Hot adjust)

Defrost Not use button Check (Error) Test run Self check Change language Language selection Display change

Temperature display ˚C/˚F setting Water temperature

display setting Function selection

Operation function limit setting

English German Spanish Russian Italian French Swedish

Selecting language

Mode skip setting Mode skip

Temperature range limit setting

Temperature range limit setting mode

Mode selection Remote controller setting MAIN Remote controllersetting SUB Use of clock setting Setting the day of the week and

time Contact number setting

Temperature off set function Temperature off set function

(Heating) Temperature off set function

(Cooling) Timer set

Timer monitor Timer mode off Timer function setting Simple timer

Heating Heating ECO Hot water Anti-freeze Cooling

Hot water Anti-freeze Cooling

English German Spanish Russian Italian French Swedish

[Dot display table]

Selecting language

Auto off timer Function selection

Check (Error) Test run Self check Colective setting Water temperature

(Initial setting)

Option setting(Heating) Option setting(Cooling) Water circuit check Waiting for response Waiting for setting Not dealt with Maintenance

English German Spanish Russian Italian French Swedish

Heating Heating ECO Hot water Anti-freeze Cooling

5. Initial setting by remote controller









(1) Press the button  for 3 seconds to activate the initial setting mode.

(2) [DISPLAY ]

WATER TEMP HEATING

* No.1 or No.2 is indicated in display .

Press button  to switch to the next parameter setting.

WATER TEMP HEATING

INITIAL SETTING

WATER TEMP HEATING ECO

WATER TEMP HOT WATER

WATER TEMP ANTI-FREEZE

No. 1* No. 2*

MODE

Set target flow water temperature in Heating mode with [TEMP] buttons ( and ) .

WATER TEMP COOLING

˚C

TEMP.



TEMP OFFSET HEATING



˚C

ON/OFF

TEMP OFFSET COOLING

 

 

Set following 4 parameters in HEATING ECO mode with [TEMP] buttons ( and ) . HEATING ECO mode= Weather compensation mode Target flow water temperature varies according to the outdoor temperature.

WATER TEMP HEATING ECO

Press button to switch alternately. (The blinking figure can be changed.)

No.1 Display  shows target flow temperature. Display  shows outdoor temperature.

No. 2 Display  shows target flow temperature. Display  shows outdoor temperature.

ON/OFF

FLOW TEMP.

No.1



No.2



No.1



No.2

Note:

· Heating ECO mode sets the set temperature depending on the outdoor temperature.

· The parameters except the above 4 parameters cannot be set. (The characteristic is linear between the point A and B.)

· When the “EXTERNAL INPUT(analog signal)” is used, the “HEATING ECO MODE” is invalid.

WATER TEMP HOT WATER

Set target flow water temperature in HOT WATER mode with [TEMP] buttons ( and ) .

WATER TEMP ANTI-FREEZE

Set target flow water temperature in ANTI-FREEZE mode with [TEMP] buttons ( and ) .

OUTDOOR TEMP.

WATER TEMP COOLING

Set target flow water temperature in COOLING mode with [TEMP] buttons ( and ) .

This setting is to adjust the difference between the actual ﬂ ow water temperature at the refrigerant-water heat exchanger outlet and the temperature sensed by TH1 which tends to be lower due to heat leakage from water piping.

HEATING mode

T(a)=ActualFlowwater

temp.(outlet side)

Outdoor unit

ӠT(h)

=T(a)-T(s)

FTC

TH1

T(s)=sensed flow water temp.

FTC

TH1

T(s)=sensed flow water temp.

*1 Refrigerant-water HEX

COOLING mode

T(a)=ActualFlowwater

temp.(outlet side)

Outdoor unit

TEMP OFFSET HEATING

TEMP OFFSET COOLING

Water piping

ӠT(c)

=T(s)-T(a)

Water piping

Set OFFSET temperature T(h) in HEATING mode with [TEMP] buttons ( and ) .

Set OFFSET temperature T(c) in COOLING mode with [TEMP] buttons ( and ) .

 In order to let the PCB memorize the changed parameters Make sure to press the button before quitting the INITIAL SETTING mode. If you press the button in INITIAL SETTING mode before pressing the button ,

ON/OFF

CIR.WATER

you can exit from this mode without any change.

6. Deﬁ nition of analog signal by remote controller (Required only for ANALOG TEMP. system)

Set following 2 parameters to assign the target temperature value to analog signal figures.

AD INPUT HEATING

AD INPUT COOLING

INITIAL SETTING

Y ]

MODE

ON/OFF

AD INPUT COOLING

FLOW TEMP.

[TEMP] buttons ( and ) .

No.2 

No.1 

4mA --------------------------20m 1V------------------------------5V 0V-----------------------------10V

(1) Press button  for 3 seconds to activate this setting mode.

(2) [DISPLA

Press button  to switch to the next parameter setting.

Set flow temp. for No.1 and No.2 with

Set flow temp. for No.1 and No.2 with [TEMP] buttons ( and ) .

Press button to switch alternately. (The blinking figure can be changed.)

 In order to let FTC memorize set parameters

ON/OFF

CIR.WATER

Make sure to press button  before exit from ANALOG SIGNAL ADJUST mode. If you press button  before pressing button  in ADJUST mode, you can exit from this mode without making any change.

ANALOG SIGNAL

 

 

TEMP.

˚C

ON/OFF



 







7. Troubleshooting

A ﬂ owing water sound or occasional hissing sound is heard.

Water does not heat or cool well.

Water or vapor is emitted from the outdoor unit.

The operation indicator does not appear in the remote controller display.

” appears in the remote controller display.

“

When restarting the outdoor unit soon after stopping it, it does not operate even though the ON/OFF button is pressed.

FTC operates without the ON/OFF button being pressed.

FTC stops without the ON/OFF button being pressed.

Remote controller timer operation cannot be set.

“PLEASE WAIT” appears in the remote controller display.

An error code appears in the remote controller display.

■

Thease sounds can be heard when refrigerant is flowing in the

indoor unit, refrigerant pipe or when the refrigerant is chaging.

■

Clean the ﬁ lter of water piping. (Flow is reduced when the ﬁ lter is dirty or

clogged.)

■

Check the temperature adjustment and adjust the set temperature.

■

Make sure that there is plenty of space around the outdoor unit.

■

During cooling mode, water may form and drip from the cool pipes and

joints.

■

During heating mode, water may form and drip from the heat exchanger

of outdoor unit.

■

During defrosting mode, water on the heat exchanger of outdoor unit

evaporates and water vapor may be emitted.

■

Turn on the power switch. “

■

During external signal control, “ ” appears in the remote controller dis-

play and FTC operation cannot be started or stopped using the remote controller.

■

Wait approximately 3 minutes. (Operation has stopped to protect the out-

door unit.)

■

Is the on timer set?

Press the ON/OFF button to stop operation.

■

Is the FTC connected to a external signal?

Consult the concerned people who control the FTC.

■

Does “

Consult the concerned people who control the FTC.

■

Has the auto recovery feature from power failures been set?

Press the ON/OFF button to stop operation.

■

Is the off timer set?

Press the ON/OFF button to restart operation.

■

Is the air conditioner connected to a central remote controller?

Consult the concerned people who control the FTC.

■

Does “

Consult the concerned people who control the FTC.

■

Are timer settings invalid?

If the timer can be set,

remote controller display.

■

The initial settings are being performed. Wait approximately 3 minutes.

■

If the remote controller is not only for FTC, change it.

■

The protection devices have operated to protect the FTC and outdoor unit.

■

Do not attempt to repair this equipment by yourself.

Turn off the power switch immediately and consult your dealer. Be sure to

provide the dealer with the model name and information that appeared in the remote controller display.

” appear in the remote controller display?

” will appear in the remote controller display.

WEEKLY

SIMPLE

, or

AUTO OFF

appears in the

If the unit cannot be operated properly after test run, refer to the following table to find the cause.

•

Wired remote controller LED 1, 2 (PCB in outdoor unit)

PLEASE WAIT

PLEASE WAIT  Error code

Display messages do not appear even when operation switch is turned ON (operation lamp does not light up).

Symptom

For about 2 minutes after power-on

Subsequent to about 2 minutes after power-on

After LED 1, 2 are lighted, LED 2 is

turned off, then only LED 1 is lighted.

(Correct operation)

Only LED 1 is lighted. 

Only LED 1 is lighted.

LED 1, 2 blink.



LED 1 blinks twice, LED 2 blinks once.

•

For about 2 minutes following power-on,operatio n of the remote controller is not possible due to system start-up. (Correct operation)

•Connector for the outdoor unit’s protection device is not connected.

•Reverse or open phase wiring for the outdoor unit’s power terminal block (L1, L2, L3)

•Incorrect wiring betwe e n F T C and outdoor (incorrect polarity of S1, S2, S3)

•Remote controller wire short

Cause

Note: Operation is not possible for about 30 seconds after cancellation of function selection. (Correct operation)

For description of each LED (LED1, 2, 3) provided on the FTC, refer to the following table.

LED1 (power for microcomputer) Indicates whether control power is supplied. Make sure that this LED is

LED2 (power for remote controller) Indicates whether power is supplied to the remote controller.

LED3 (communication between FTC and outdoor units) Indicates state of communication between the FTC and outdoor

always lit.

This LED lights only in the case of the FTC which is connected to the outdoor unit refrigerant addresses “0”.

units. Make sure that this LED is always blinking.

Error code indication

You can check an error code on both 1 and 2.

LCD display on remote controller

2-digit LED indicator on outdoor unit PCB

(For SPLIT type outdoor unit, this LED indicator is optional parts.PAC-SK52ST)

[1]

SELF-DIAGNOSIS ACTION TABLE

Error Code Abnormal point and detection method Cause Countermeasure

Actual ﬂ ow water temperature thermis- tor (TH1)

The unit is in 3-minute resume

prevention mode if short/open of thermistor is detected. Abnormal if the

unit does not reset normally after 3 minutes. (The unit returns to normal operation, if it has been reset normally.)

Constantly detected during cooling,

drying, and heating operation. Short: -90: or more Open: -40: or less

characteristics

failure of thermistor wiring

* The 2-digit LED indicator on outdoor unit PCB can display indoor side error as well.

Defective thermistor Contact failure of TB61 No.1-2

on PCB of FTC

Breaking of wire or contact Defective PCB of FTC

Check resistance value of thermistor.

1–3

0: 15.0k 10: 9.6k 20: 6.3k 30: 4.3k

40: 3.0k If you put force on (draw or bend) the lead wire with measuring resistance value of thermistor, breaking of wire or contact failure can be detected.

Check contact failure of TB61 No.1-2 on

PCB of FTC. Refer to 8. Turn the power on again and check restart after inserting connector again.

Check actual ﬂ ow water temperature display

on remote controller.

Replace PCB of FTC if there is abnormal dif-

ference with actual ﬂ ow water temperature.

Turn the power off, and on again to operate after check.

" " " " "

Pipe temperature thermistor/Liquid (TH2)

The unit is in 3-minute resume

prevention mode if short/open of thermistor is detected. Abnormal if the

unit does not reset normally after 3 minutes. (The unit returns to normal operation, if it has been reset normally.)

Constantly detected during cooling,

drying, and heating (except defrosting)

operation Short: 90: or more Open: -40: or less

Freezing/overheating protection is working

Freezing protection (Cooling mode)

The unit is in 6-minute resume preven-

tion mode if pipe temperature stays

under -15: for 3 minutes, 3 minutes

after the compressor started. Abnormal if

it stays under -15: for 3 minutes again

within 16 minutes after 6-minute resume

prevention mode.

Overheating protection (Heating mode)

The units is in 6 minute resume

prevention mode if pipe temperature is

detected as over 70: after the compres-

sor started. Abnormal if the temperature

of over 70: is detected again within 30

minutes after 6 minute resume preven-

tion mode.

Defective thermistor

characteristics

Contact failure of TB61 No.3-4

on PCB of FTC

Breaking of wire or contact

failure of thermistor wiring

Defective refrigerant circuit is

causing thermistor temperature

or more or -40: or

of 90 less.

Defective PCB of FTC

(Cooling mode)

Short cycle of air path

Low-load (low temperature)

operation out of the tolerance range

Defective outdoor fan control

Overcharge of refrigerant

Defective refrigerant circuit

(clogs)

(Heating mode)

Short cycle of air path

Over-load (high temperature)

operation out of the tolerance range

Defective outdoor fan control

Overcharge of refrigerant

Defective refrigerant circuit

(clogs)

Bypass circuit of outdoor unit is

defective.

Check resistance value of thermistor.

1–3

For characteristics, refer to (P1) above.

Check contact failure of TB61 No.3-4 on

PCB of FTC. Refer to 8. Turn the power on and check restart after inserting connector again.

Check pipe <liquid> temperature with remote

controller in test run mode. If pipe <liquid> temperature is extremely low (in cooling mode) or high (in heating mode), refrigerant circuit may have defective.

Check pipe <liquid> temperature with remote

controller in test run mode. If there is extremely difference with actual pipe <liquid> temperature, replace PCB of FTC.

Turn the power off, and on again to operate after check.

(Cooling mode)

Remove shields.

Check outdoor fan motor.

Check operating condition of refrigerant

circuit.

(Heating mode)

Remove shields.

Check outdoor fan motor.

Check operating condition of refrigerant

4~6

circuit.

Error Code Abnormal point and detection method Cause Countermeasure

Remote controller transmission error (E0)/signal receiving error (E4)

Abnormal if main or sub remote con-

troller cannot receive any transmission normally from FTC of refrigerant address “0” for 3 minutes.

(Error code: E0)

Abnormal if sub-remote controller could

not receive any signal for 2 minutes. (Error code: E0)

Abnormal if FTC can not receive any

data normally from remote controller board or from other Interface/Flow temp. controller board for 3 minutes. (Error code: E4)

FTC cannot receive any signal from

remote controller for 2 minutes. (Error code: E4)

Contact failure at transmission

wire of remote controller

All remote controllers are set

as “sub” remote controller. In this case, E0 is displayed on remote controller, and E4 is displayed at LED (LED1, LED2) on the outdoor controller circuit board.

Miswiring of remote controller

Defective transmitting receiving

circuit of remote controller

Noise has entered into the

transmission wire of remote controller.

Check disconnection or looseness of FTC or

transmission wire of remote controller.

Set one of the remote controllers “main”, If

there is no problem with the action above.

Check wiring of remote controller.

• Total wiring length: max. 500 m (Do not use cablex 3 or more.)

• The number of connecting remote controller: max. 2 units

When it is not the above-mentioned problem of

1~3

Diagnose remote controllers.

a) When “RC OK” is displayed, remote con-

trollers have no problem.

Turn the power off, and on again to check. If abnormality generates again, replace PCB of FTC.

b) When “RC NG” is displayed, replace

remote controller.

c) When “RC E3” or “ERC 00-66” is dis-

played, noise may be causing abnormality.

Remote controller control board

Abnormal if data cannot be read nor-

mally from the nonvolatile memory of the remote controller control board.

(Error code: E1)

Abnormal if the clock function of remote

controller cannot be operated normally.

(Error code: E2)

Remote controller transmission error (E3)/signal receiving error (E5)

Abnormal if remote controller could not

ﬁ nd blank of transmission path for 6 seconds and could not transmit.

(Error code: E3)

When remote controller receives the

transmitted data same time and compares these data. Abnormal if the data is judged to be different for 30 continuous times. (Error code: E3)

Abnormal if FTC could not ﬁ nd blank of

transmission path. (Error code: E5)

When FTC receives the transmitted data

same time and compares these data. Abnormal if the data is judged to be different for 30 continuous times. (Error code: E5)

Defective remote controller

2 remote controllers are set as

“main.”

(

In case of 2 remote controllers

Defective transmitting receiving

circuit of remote controller

Defective transmitting receiving

circuit of FTC

Noise has entered into trans-

mission wire of remote controller.

Replace remote controller.

Set a remote controller to main, and the

other to sub.

)

Diagnose remote controller.

2~4

a) When “RC OK” is displayed, remote con-

trollers have no problem. Turn the power off, and on again to check. When becoming abnormal again, replace

indoor controller board. b) When “RC NG” is displayed, replace

remote controller. c) When “RC E3” or “ERC 00-66” is dis-

played, noise may be causing abnormal-

ity.

FTC/outdoor unit communication error (Signal receiving error)

Abnormal if FTC cannot receive any

signal normally for 6 minutes after turning the power on.

Abnormal if FTC cannot receive any

signal normally for 3 minutes.

Contact failure, short circuit or,

miswiring (converse wiring) of FTC/outdoor unit connecting wire

Defective transmitting receiving

circuit of FTC

Defective transmitting receiving

circuit of FTC

Noise has entered into FTC/

outdoor unit connecting wire.

* Check LED display on the outdoor control

circuit board. (Connect A-control service tool, PAC-SK52ST.)

Check disconnection or looseness of FTC/

outdoor unit connecting wire of FTC or outdoor unit.

Turn the power off, and on again to

2~4

check. If abnormality generates again, replace FTC or outdoor controller circuit board.

Error Code Abnormal point and detection method Judgment and actionCase

FTC/outdoor unit communication error (Signal receiving error) (Outdoor unit)

(1) Abnormal if outdoor controller circuit

board could not receive anything

normally for 3 minutes.

Contact failure of FTC/outdoor

unit connecting wire

Defective communication circuit

of outdoor controller circuit board

Defective communication circuit

of FTC

Noise has entered into FTC/

outdoor unit connecting wire.

Check disconnection or looseness of FTC/

outdoor unit connecting wire of FTC or outdoor unit.

Turn the power off, and on again to

2~4

check. Replace PCB of FTC or outdoor controller circuit board if abnormality is displayed again.

FTC/outdoor unit communication error (Transmitting error) (Outdoor unit)

(1) Abnormal if “0” receiving is detected

30 times continuously though outdoor controller circuit board has transmitted “1”.

(2) Abnormal if outdoor controller circuit

board could not ﬁ nd blank of transmis- sion path for 3 minutes.

Non deﬁ ned error code

This code is displayed when non deﬁ ned error code is received.

Serial communication error

Abnormal if serial communication between outdoor controller circuit board and outdoor power circuit board is defective.

FTC/outdoor unit connecting

wire has contact failure.

Defective communication circuit

of outdoor controller circuit board

Noise has entered power sup-

ply.

Noise has entered FTC/outdoor

unit connecting wire.

Noise has entered transmission

wire of remote controller.

Noise has entered Interface

unit/Flow temp. controlleroutdoor unit connecting wire.

Wire disconnection or contact

failure of connector CN2 be-

tween the outdoor controller circuit board and the outdoor power circuit board

Wire disconnection or contact

failure of connector CN4 be-

tween the outdoor controller circuit board and the outdoor power circuit board

Defective communication circuit

of outdoor power circuit board

Defective communication circuit

of outdoor controller circuit board for outdoor power circuit board

Check disconnection or looseness of FTC/

outdoor unit connecting wire.

Turn the power off, and on again to

2~4

check. Replace outdoor controller circuit board if abnormality is displayed again.

Turn the power off, and on again to check.

Replace Interface/Flow temp. controller

board or outdoor controller circuit board if abnormality is displayed again.

Check connection of each connector CN2

and CN4 between the outdoor controller circuit board and the outdoor power circuit board.

Replace outdoor power circuit board.

Replace outdoor controller circuit board.

[2]

HOW TO "MONITOR THE OPERATION DATA"

• Turn on the [Monitoring the operation data]





(3)



Example) Request code "004"

Discharge temperature 69 Refrigerant address "00"



(7) (5)



(1)

(4)

(1)Press the (2)Press the

Note)

Operating the service inspection monitor

- - - ] appears on the screen (at

[

(The display (at (3)Press the [TEMP] buttons (

[Screen]

(4)Press the [CLOCK] buttons ( and ) to set the desired request code No. (5)Press the button to perform data request.

(The requested data will be displayed at Data collected during operation of the remote controller will be displayed.

The collected data such as temperature data will not be updated automatically even if the data changes. To display the updated data, carry out step (4) again.

TEST

CHECK

It is not possible to switch to [Maintenance monitor] during data request in maintenance mode (i.e., while "

since no buttons are operative.



PAR-W21MAA

button for 3 seconds so that [ Maintenance mode] appears on the screen (at ).

button for 3 seconds to switch to [Maintenance monitor].



) when [Maintenance monitor] is activated.

) now allows you to set a request code No.)

and ) to select the desired refrigerant address.



in the same way as in maintenance mode.)

(2)(6)

A: Maintenance mode B: Refrigerant address C: Data display area D: Request code display area

- - - -"

is blinking)

Canceling the Monitoring the operation data

(6)While [Maintenance monitor] is displayed, press the (7)To return to normal mode, press the

ON/OFF

CHECK

button.

button for 3 seconds to return to maintenance mode.

[3]

Request code list

* Certain FTC/outdoor combinations do not have the request code function; therefore, no request codes are displayed.

Request content

Request code

Operation state

Compressor-Operating current (rms)

Compressor-Accumulated operating time

Compressor-Number of operation times

Discharge temperature (TH4)

Outdoor unit - Liquid pipe 1 temperature (TH3)

Outdoor unit - Liquid pipe 2 temperature

Outdoor unit-2-phase pipe temperature (TH6)

7 8

Outdoor unit-Suction pipe temperature (TH32) Outdoor unit-Outside air temperature (TH7)

Outdoor unit-Heatsink temperature (TH8)

10 11

Discharge superheat (SHd)

Sub-cool (SC)

13 14 15

Compressor-Operating frequency

Compressor-Target operating frequency

Outdoor unit-Fan output step

Outdoor unit-Fan 1 speed

(Only for air conditioners with DC fan motor) Outdoor unit-Fan 2 speed

(Only for air conditioners with DC fan motor)

LEV (A) opening

LEV (B) opening

23 24

LEV (C) opening Primary current

DC bus voltage

26 27 28

Number of connected FTC units

29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47

Thermostat ON operating time

Test run elapsed time

Description

(Display range)

Refer to Detail Contents in Request Code. 0 – 50 0 – 9999 0 – 9999 3 – 217

-40 – 90

-39 – 88

-40 – 200

0 – 255 0 – 130

0– 255 0– 255 0– 10

0 – 9999

0– 500 0– 500

0– 500 0– 50

180 – 370

0– 4

0 – 999 0 – 120

Unit Remarks

– A

10 hours

100 times

˚C ˚C ˚C ˚C ˚C ˚C ˚C

˚C ˚C

Hz Hz

Step

rpm

Pulses Pulses

Pulses

Units

Minutes Minutes

"0" is displayed if the air conditioner is a single-fan type.

A V

Not possible to activate maintenance mode during the test run.

Request content

Request code

FTC unit-Control state

Outdoor unit-Control state

Compressor-Frequency control state

Outdoor unit-Fan control state

Actuator output state

Error content (U9)

55 56 57 58 59

Signal transmission demand capacity

Contact demand capacity

External input state (silent mode, etc.)

62 63 64 65 66 67 68 69

Outdoor unit-Capacity setting display

Outdoor unit-Setting information

71 72

Outdoor unit-SW1 setting information

Outdoor unit-SW2 setting information

74 75

Outdoor unit-SW4 setting information

Outdoor unit-SW5 setting information

Outdoor unit-SW6 setting information

Outdoor unit-SW7 setting information

Outdoor unit-SW8 setting information

Outdoor unit-SW9 setting information

Outdoor unit-SW10 setting information

82 83

M-NET adapter connection (presence/absence)

84 85

86 87 88

Display of execution of replace/wash operation Outdoor unit-Microcomputer version information

Outdoor unit-Microcomputer version information (sub No.)

92 93 94 95 96 97 98 99

Outdoor unit - Error postponement history 1 (latest)

100

Outdoor unit - Error postponement history 2 (previous)

101

Outdoor unit - Error postponement history 3 (last but one)

102

Description

(Display range)

Refer to Detail Contents in Request Code. Refer to Detail Contents in Request Code.

Refer to Detail Contents in Request Code. Refer to Detail Contents in Request Code. Refer to Detail Contents in Request Code. Refer to Detail Contents in Request Code.

0 – 255

Refer to Detail Contents in Request Code. Refer to Detail Contents in Request Code.

Refer to Detail Contents in Request Code. Refer to Detail Contents in Request Code. Refer to Detail Contents in Request Code.

"0000": Not connected "0001": Connected

"0000": Not washed "0001": Washed

Examples) Ver 5.01 

"0501" Auxiliary information (displayed after version information) Examples) Ver 5.01 A000 

"A000"

Code

Unit Remarks

– – – – – –

% – –

– –

– – – – – – –

–

Ver

–

Request content

Request code

Error history 1 (latest)

103

Error history 2 (second to last)

104

Error history 3 (third to last)

105

Abnormal thermistor display

106

(TH3/TH6/TH7/TH8)

Operation mode at time of error

107

Compressor-Operating current at time of error

108

Compressor-Accumulated operating time at time of error

109

Compressor-Number of operation times at time of error

110

Discharge temperature at time of error

111

Outdoor unit - Liquid pipe 1 temperature (TH3) at time of error

112

Outdoor unit - Liquid pipe 2 temperature at time of error

113

Outdoor unit-2-phase pipe temperature (TH6) at time of error

114 115

Outdoor unit-Outside air temperature (TH7) at time of error

116

Outdoor unit-Heatsink temperature (TH8) at time of error

117

Discharge superheat (SHd) at time of error

118

Sub-cool (SC) at time of error

119

Compressor-Operating frequency at time of error

120

Outdoor unit at time of error

121

• Fan output step Outdoor unit at time of error

122

• Fan 1 speed (Only for air conditioners with DC fan) Outdoor unit at time of error

123

• Fan 2 speed (Only for air conditioners with DC fan)

124

LEV (A) opening at time of error

125

LEV (B) opening at time of error

126 127 128 129

Thermostat ON time until operation stops due to error

130 131 132

FTC-Liquid pipe temperature at time of error

133

FTC at time of error

134

•

Actual flow water temperature <Thermostat judge temperature>

135 136 137 138 139 140

~ 146 147 148 149

FTC-Actual flow water temperature

150

FTC-Liquid pipe temperature

151 152

~ 767

Description

(Display range)

: TH3 6 : TH6 7 : TH7 8 : TH8 0 : No thermistor error

Displayed in the same way as request code "0". 0– 50 0 – 9999 0 – 9999 3– 217

-40 – 90

-39 – 88

-40 – 200 0– 255 0– 130 0– 255

0– 10

0 – 9999

0– 500 0– 500

0 – 999

-39 – 88

Unit Remarks

Code Code Code

Sensor

number

–

10 hours

100 times

˚C ˚C ˚C ˚C

Step

rpm

Pulses Pulses

Minutes

˚C

˚C ˚C

"0" is displayed if the air conditioner is a single-

fan type.

Detail Contents in Request Code









Example) Request code "004"

Discharge temperature 69  Refrigerant address "00"

A: Maintenance mode display B: Refrigerant address

C: Data display area D: Request code display area

[Operation state] (Request code ":0")

Data display

Relay output state Operation mode

Operation mode

Display Operation mode

0STOP • FAN C COOL • DRY HHEAT

d DEFROST

[FTC unit – Control state] (Request code :"50 ")

Data display

Unit No. 4 state Unit No. 3 state

Unit No. 2 state Unit No. 1 state

Relay output state

Display

0 1 2 3 4 5 6 7 8 A

Display State

0 Normal 1 Preparing for heat operation 2– 3– 4 Heater is ON. 5 Anti-freeze protection is ON. 6 Overheat protection is ON. 7 Requesting compressor to turn OFF F There are no corresponding units.

Power currently

supplied to compressor

–

ON ON

Compressor 4-way valve Solenoid valve

–

ON ON ON ON

–

ON ON

–

[Outdoor unit – Control state] (Request code ":51")

Data display State 0 0 0 0 Normal 0 0 0 1 Preparing for heat operation 0 0 0 2 Defrost

[Compressor – Frequency control state] (Request code ":52")

Data display

Frequency control state Frequency control state

Frequency control state 

Display Current limit control

0 No current limit 1 Primary current limit control is ON. 2 Secondary current limit control is ON.

Frequency control state 

Display





Discharge temperature

0 1 Controlled 2 Controlled 3 Controlled Controlled 4 Controlled 5 Controlled Controlled 6 Controlled Controlled 7 Controlled Controlled Controlled 8 Controlled 9 Controlled Controlled

A Controlled Controlled

b Controlled Controlled Controlled

C Controlled Controlled

d Controlled Controlled Controlled

E Controlled Controlled Controlled

F Controlled Controlled Controlled Controlled

Condensation temperature

overheat prevention

protection control

Anti-freeze

Heatsink temperature

overheat prevention

[Fan control state] (Request code :"53")

Data display

Fan step correction value by heatsink temperature overheat prevention control Fan step correction value by cool condensation temperature overheat prevention control

Display Correction value

- (minus) – 1 00 1 2

+1 +2

[Actuator output state] (Request code :"54")

Data display

Actuator output state  Actuator output state 

Actuator output state 

Display SV1 4-way valve Compressor

0 1

2 3

4 5

6 7

8 9

A b

C d

E F

ON ON

Compressor is

warming up

ON ON

Actuator output state 

Display 52C SV2 SS

0 1

2 3 4 5 6 7

ON ON

ON ON ON ON

[Error content (U9)] (Request code :"55")

Data display

Error content  Error content 

Error content  : Detected

Display

0 1 2 3 4 5 6 7 8 9

Overvoltage Undervoltage L1-phase

error error open error

Power synchronizing

signal error

Error content  : Detected

0 1 2 3

Converter Fo

error

PAM error

Display

[Contact demand capacity] (Request code "61")

Data display

000

Setting content

[External input state] (Request code "62")

Data display

000

Input state

Setting content

Setting

Display Setting value

0 1 50% 2 75% ON 3 100%

Input state : Input present

Display

0 1 2 3 4 5 6 7 8 9 A b

d E F

Contact demand Silent mode Spare 1 Spare 2

input input input input

SW7-1 SW7-2

[Outdoor unit - Capacity setting display] (Request code : "70")

Data display

935 10 50 11 60 14 71 20 100 25 125 28 140 40 200 50 250

Capacity

[Outdoor unit - Setting information] (Request code "71")

Data display

Setting information  Setting information 

Setting information 

Display Defrost mode

0 Standard 1 For high humidity

Setting information 

Display

0 1 2 3

Single-/ Heat pump/

3-phase

Single-phase

3-phase

cooling only

Heat pump Cooling only Heat pump

Cooling only

[Outdoor unit switch setting display (SW1 to SW10, except SW3)] Request codes: 73 to 82

0: Swich OFF 1: Swich ON

SW1, SW2, SW6, SW7

123456 0 0 0 0 0 0 00 00

Data display

0: Swich OFF 1: Swich ON

SW5

1234

Data display

0000 0000 1000 0001 0100 0002 1 1 0 0 00 03 0010 0004 1010 0005 0110 0006 1 1 1 0 00 07 0001 0008 1001 0009 0101 000A 1 1 0 1 00 0b 0011 000C 1 0 1 1 00 0d 0111 000E 1111 000F

0: Swich OFF 1: Swich ON

SW8

123

Data display

000 0000 100 0001 010 0002 110 0003 001 0004 101 0005 011 0006 111 0007

0: Swich OFF 1: Swich ON

SW4, SW9, SW10

Data display

0 0 00 00 1 0 00 01 0 1 00 02 1 1 00 03

8. Outlines and dimensions

Unit : mm

TB61 TB62

3-ELECTRIC WIRE INLET

336 313

(11.5)11.5

Ø5

Ø12

TB141TB142

TB6

2-HOLES

(FOR INSTALLATION)

200

278

2-Ø5 HOLES (FOR INSTALLATION)

WIRED REMOTE CONTROLLER

43.5

130

120

Requirements6

6-1. For functional parts

6-1-1. Thermistor position

Refer to section 4. Interface or 5. Flow temp. controller for detail. (1) I / F : PAC-IF011B-E (cased), PAC-IF010-E (PCB only)

Application Capacity Control Water HEX

Terminal "TH1" target temp.

Terminal "TH2" Pipe temp./Liquid

Terminal "TH5" Pipe temp./2-phase

Air to Water

Air to Air

By external STEP signals

"By external STEP signals"

Packaged Fixed resistor Fixed resistor Open Split Fixed resistor CONNECT Open

Split Fixed resistor CONNECT CONNECT *1

Calculate by I / F Split CONNECT CONNECT CONNECT *1

Fixed resistor value : 4~10kΩ *1. If the outdoor unit is ZUBADAN series, Terminal "TH5" can be opened.

(2) FTC : PAC-IF021B-E (cased), PAC-IF020-E (PCB only)

Application Capacity Control Water HEX

Air to Water

"By external STEP signals"

Packaged

Terminal "TH1" target temp.

CONNECT Open Open

Terminal "TH2" Pipe temp./Liquid

Calculate by I / F Split CONNECT CONNECT Open

PAC-IF011B-E/PAC-IF021B-E (cased) contains 2 thermistors. PAC-IF010B-E/PAC-IF020B-E (PCB only) doesn't contain thermistor.

Please purchase locally optional parts PAC-TH010-E ("Thermistor, 5m × 2pcs " 10set).

PACKAGED type outdoor unit SPLIT type outdoor unit

Water OUTLET side

Outdoor unit

TH1

FTC

TH2: not necessary

Outdoor unit

Refrigerant LIQUID side

Terminal "TH5" Pipe temp./2-phase

Water OUTLET side

FTC

TH1

Packaged type (with a refrigerant-wa

ter

Water piping

nside)

X i

*1 Refrig

TH2

erant-water HEX

SPLIT type

ut refrigerant-water

(witho HEX inside)

6-1-2. Mounting PCB (PCB only, uncased type)

• To comply with the required regulations and directives by your side. e.g) CE marking

• Fire safty : PCB must be enclosed by sheet metal.

• Ambient temperature : 0:~60:

• Do not install it outdoors.

6-2. For application

• Piping material/water ﬂ ow velocity

• To prevent freezing

• Water quality

• Primary / secondary water

Refer to 2-2-2 [6] Notiﬁ cation to design / select HEX (Refrigerant - Water)

Refrigerant piping

TH2

Water piping

*1 Refrigerant-water HEX

System example7

1. Air to Water application

(1) Domestic Hot Water + Space heating by radiator

with packaged outdoor unit + FTC

*variable capacity request signals for Heat Pump is calculated by FTC.

1) System outline

* DHW cylinder unit

Immersion heater

* TRV(Thermostatic Radiator Valve)

*Radiator

2) Wiring / Switch setting

PAR-W21MAA

Remote Controller

Forced Comp. OFF

* Time switch

FTC

Packaged O/U

Flow temp. thermistor

Flow temp.thermistor

At site

Flow sensor

HeatingECO



Hot Water



X11

X12

* Flow sensor

(to prevent pipes from freezing)

FTC

1 2 3 4 5 6 7 8 9

11 12 13

TB142

*pump

*valve

Gas boiler

FTC board

TB61

2 3 4 5 6

1 2

TB62

2 3 4 5 6

(External Input)

OFF/ON

TB142 TB141

6521438

Roo

Room thermostat: installed in the coldest room

existing boiler for backup purpose

181

OFF/ON

X12

DHW

SW3SW2SW1

OFF/ONOFF/ON

SW6

6521438

11 13

(External Output)

X11

12 14

Time switch(AC230V Output)

Thermistor

Pump

(ON/OFF)

CNS2

Valve

(ON/OFF)

* locally supplied

S1 S2 S3

TB6

To metal chassis

{

TO OUTDOOR UNIT

SW1

12345678

System select <Basic system>

•ON/OFF, operation mode by external input.

•Set temp. by R/C.

Prohibition of cooling mode OFF: permit

Fixed OFF

SW2

12345678

Set temp. by DIP switch (not in use in this case)

Set temp. range Heating mode. max 60:: O/U is packaged type.

Set temp. by DIP switch OFF: by R/C or Analog signal

TH2(liquid pipe thermistor) connection ON: not connect(packaged O/U)

SW3

12345678

Fixed OFF

Fixed: OFF

Logic of forced comp OFF input by external signal(TB142: 5-6) OFF: short→comp OFF

ON: open→comp OFF

FTC

SW6

Analog input setting (not in use in this case)

(2)-1. Space heating by under ﬂ oor heating

with split outdoor unit+HYDROBOX + FTC

*variable capacity request signals for Heat Pump is calculated by FTC.

1) System outline

Split O/U

Refrigerant pipe temp.themistor (Liquid side)

2) Wiring / Switch setting

Flow temp.thermistor

Refrigerant pipe (liquid) temp.thermistor

Analog signal(1-5V)setting temp.input

PAR-W21MAA Remote Controller

(for initial parameter

setting: not always necessary)

Refrigerant pipe (Gas)

Refrigerant pipe (Liquid)

HYDRO BOX (locally supplied)

FTC (PCB)

Flow temp. thermistor (outlet side)

TB61

2 3 4 5 6

TB62

2 3 4 5 6

TB142

(External Input)

6521438

1 2

*system

controller

*pump

Flow sensor

(to prevent pipes from

freezing)

FTC board

SW6

OFF/ON

* Under Floor Heating

*Valve

Auxiliary heater

* locally supplied

OFF/ON

SW3SW2SW1

OFF/ONOFF/ON

CNS2

{

S1 S2 S3

TB6

To metal chassis

TO OUTDOOR UNIT

Set temperature

(user interface)

SW1

12345678

System select <Analog temp. system>

•ON/OFF, operation mode by external input

•Set temp. by external analog input

Prohibition of cooling mode OFF: permit

Fixed OFF

X11

Cooling

System controller

Pump

(ON/OFF)

Set temp. rarge Heating mode. max55:: O/U is split type.

Set temp. by DIP switch OFF: by R/C or Analog signal

TH2(liquid pipe thermistor) connection OFF: nead to connect(split O/U)

X12

Heating

Valve

(ON/OFF)

SW2

12345678

Auxiliary heater (ON/OFF)

Set temp. by DIP switch (not in use in this case)

At site

Flow sensor

Forced Comp. OFF

Cooling mode

Heating mode



SW3

12345678

Fixed OFF

Logic of forced comp OFF input by external signal(TB142: 5-6) OFF: short→comp OFF

ON: open→comp OFF

FTC

1 2 3 4 5 6 7 8 9

X11

10 11

X12

12 13 14

SW6

Analog input setting 1:OFF 2:ON→1-5V 1:ON 2:ON→4-20mA 1:OFF 2:OFF→0-10V

TB142

(2)-2. Domestic Hot Water + space heating by under ﬂ oor heating

with split outdoor unit+HYDROBOX + IF

*variable capacity request signals for Heat Pump is calculated by local system controller.

1) System outline

Split O/U

Refrigerant pipe temp.themistor (Liquid side)

2) Wiring / Switch setting

Flow temp.thermistor

Refrigerant pipe (liquid) temp.thermistor

Refrigerant pipe

(Gas)

Refrigerant pipe (Liquid)

PAR-21MAA

Remote Controller

(for servicing purpose

: not always necessary)

HYDRO BOX(locally supplied)

IF (PCB)

*Flow temp.

thermistor (outlet side)

TB61

2 3 4 5 6

1 2

TB62

2 3 4 5 6

TB142

6521438

(External Input)

IF board

12 14

*system

controller

*pump

*Flow sensor

(to prevent

pipes from freezing)

SW6

OFF/ON

CNX131CNX231CNX331CNX431CNX531CNX631CNX7

(External Output)

*Valve

181

OFF/ON

X413X313X231X1

* Under FloorHeating

*Auxiliary

heater

* locally supplied

SW3SW2SW1

OFF/ONOFF/ON

CNS2

{

TO OUTDOOR UNIT

S1 S2 S3

L N

TB6

To metal chassis

Step1 X12 Step4 X13 Step7 X14

Auto X15

At site

→

→ → → →

Forced comp.off

Flow sensor

Cooling/Heating X11

Flow temp.thermistor

SW1

12345678

Fixed OFF

System select OFF/OFF/OFF→7steps by remote switch

Fixed operation mode ON/ON→depond on external input

I/F

10 11 12 13 14

TB142

13X613

1X513

Defrost

Auxiliary heater (ON/OFF)

SW3

12345678

Fixed OFF

CNX1~X7

Fixed OFF

SW6

Analog input setting (not in use in this case)

X14

X13

Pump (ON/OFF)

Fixed OFF

At site

X15

System controller

Error

Valve (ON/OFF)

LED display setting (refer to page34)

1 2 3 4 5 6 7 8 9

X11

Cooling/ Heating

Set temperature (user interface)

SW2

12345678

X11

X12

Capacity Steps

LEV self control: ON (need to set to ON for ATW

application)

Fixed set temp.(not in use in this case)

2. Air to Air application

Air-Handling Unit with split outdoor unit + IF

*variable capacity request signals for Heat Pump is calculated by IF.

1) System outline

PAR-21MAA Remote Controller (for user interface)

Split O/U

Refrigerant pipe (Gas)

Refrigerant pipe (Liquid)

Air-Handling Unit (locally supplied)

IF (PCB)

*FAN

Return Air

*system

controller

Outlet Air

2) Wiring / Switch setting

Flow temp.thermistor

Refrigerant pipe (liquid) temp.thermistor

Refrigerant pipe (2phase) thermistor

PAR-21MAA

Remote Controller

(for user interface)

Return Air temp. thermistor

TB61

2 3 4 5 6

TB62

2 3 4 5 6

(External Input)

TB142

6521438

Refrigerant pipe temp.themistors (Liquid / 2phase)

IF board

SW6

OFF/ON

CNX131CNX231CNX331CNX431CNX531CNX631CNX7

At site

(External Output)

13X231

OFF/ON

*Auxiliary

heater

* locally supplied

SW3SW2SW1

OFF/ONOFF/ON

CNS2

{

S1 S2 S3

TB6

To metal chassis

1X513

13X613

CNX1~X7

TO OUTDOOR UNIT

SW1

12345678

System select OFF/ON/ON→Auto step mode

System controller

SW2

12345678

Fixed OFF

Fixed operation mode OFF/OFF→not ﬁ xed, depend on

Fixed set temp.(not in use in this case)

R/C setting

Error

Operation

Fan

SW3

Fixed OFF

LEV self control OFF need to connect TH5(2phase pipe thermistor) on AHU HEX

LED display setting (refer to page34)

Defrost

Auxiliary heater (ON/OFF)

12345678

Fixed OFF

SW6

Analog input setting (not in use in this case)

Air to Water (ATW) Heat pump, Interface (I/F) and Flow temp. controller (FTC) Technical manual

Issued in Jun. 2008 M-P0398 SIZ<MEE> Printed in Japan

HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN

New publication effective Jun. 2008

Speciﬁ cations subject to change without notice

Mitsubishi M-P0398 TECHNICAL MANUAL

Specifications and Main Features

Frequently Asked Questions

User Manual