Pioneer KFDH125 Gebrauchsanweisung

Installation, Operation & Maintenance Manual

Split System , Cooling Only

KODH

IOMES--2013

KFDH

75000 - 150000 BTU

TIME R SLEEP

HIGH

LOW

MED

TEMP

AUTO

DRY

FAN MODE

COOL

ON/OFF

FAN

HEAT

1. Safety Precaution 1

2. Indoor Unit Installation

2.1 Outline dimensions,

Installation location

2.2 Service Space

2.3 Installing the indoor unit

2.3.1 Unit suspension

Contents

Safety Precaution

Before installing the unit, make sure you read all the “Safety precautions”.

Warning:

Describes precautions that must be observed to prevent danger of injury or death to user.

Describes precautions that must be observed to prevent damage or malfunction of the unit.

Caution:

Notice:

• Installation and maintenance should be perform

-ed by qualified personnel.

• Avoid direct contact with sharp edges and coil

surfaces

• Ensure the condensate drain pipe is properly

installed.

• DO NOT overcharge the equipment

• Avoid long piping installation

• The equipment installation and electrical work

must comply with local codes and regulations.

• The unit must be securely installed on structure

that can sustain its weight.

• If installed in a small room, measures must be

taken to prevent refrigerant concentration

exceeding the safety limit in case of gas leak.

Warning:

Caution:

• After installation , check for the system leaks.

DO NOT use Oxygen, Acetylene, poisonous or

any flamable gas for the leak test.

• End user should not attempt to repair the unit

in case of malfunction or failure.

• This manual should be read carefully before installation. Unit installation and service should be performed

by experienced technicians in accordance with manual’s procedures to achieve normal and reliable unit

operation.

• This manual should be kept and returned to unit’s designated place after installation is completed

for reference.

2.3.2 Drainage pipe

3. Outdoor Unit Installation

3.1 Outline dimensions,

Installation location 3

3.2 Installation Space & cleatance 4

3.3 Installing the outdoor unit 4

4. Refrigrant Piping connection

5. Vaccuming and Charging 5

4.1 Piping length 5

4.2 Piping connection 5

5.2 Refrerant Handling 6

6. Electrical Wiring 6

7. Controller Operation

8. Test Run 12

9 Service and Maintenance

10 Trouble Shooting 14

2.1 Outline Dimension, installation location

Indoor Unit Installation

476

1376

Control

Box

20 1600

1541

885

412

255

773

850 130

745 38

Drain Pipe 1”

φ15

1502

53 1268 81

396

1402

973

297

562

71 437

60 761

605 96

214 40

Fig 2-1-1 KFDH75,100

Fig 2-1-2 KFDH125,150

• Select a location where air can be distributed to

all corners of the room.

• Make sure no obstruction to return and dischage air.

• Avoid installation at the following location:

- area where flamable gas may leak or generated.

- places where unit is frequently expl=osed to

corrosive gas, or acidic solutions.

Warning:

•The unit must be securely installed on

structure that can sustain its weight.

2.2 Service space

Fig 2-2

Min. 800mm

• Make sure sufficient space for service and

maintenance (Fig 2-3).

2.3 Installing indoor unit

2.3.1 Unit suspension

Indoor Unit Installation

Outdoor Unit Installation

• Use the hanging rods to hang the unit through the holes provided. Strength of hanging rods must be

able to support the total weight of the unit.

• Add isolator, absorber , if necessary , to minimize the vibration transmission to the ceiling.

2.3.2 Drain pipe

• Drain pipe shall be properly installed for the

drainage for the drainge of condensate water.

• Trap shall be installed (See figure 2.3)

• Make sure no leak at the connecting joint.

Trap

• Insulate the drain pipe to avoid water condensation.

Model A B

3.1 Unit dimensions , Installation location

Liquid Line

Gas Line

• In order to optimize capacity, unit shall be installed

as recommended requirements :-

a) Allow sufficient space around the unit, to avoid

the recirculation of the hot discharge air.

b) Ensure no obstruction air flow into or out of the unit.

c) The location which is well ventilated.

d) A place protected from direct sunlight, use an

awning for protection, if necessary.

e) A place where the hot air discharge and operating

sound level will not annoy the neighbours.

f) A place must not be susceptible to dust or oil mist,

or other corrosive chemicals

Caution:

• Avoid installing at location containing oils (including

machine oils), salt (coastal area), sulphide gas (near

hot spring, oil refinery plant), corrosive chemicals etc.

OBR15x35

1156

1220

1160

985

8x 50

700

143

275 70

143

Fig 3-1 KODH

3.2 Installation space and clearance

3.3 Installing the outdoor unit

Outdoor Unit Installation

Unit can be installed based on following :

Orientation 1 : 2 X KODH75 to 150

Orientaition 2: 4 X KODH75 to 150. Front Front

3.3.1 Unit lifting

• Holes at the unit base are for the lifting purpose.

Belt shall be used for the lifting. Make sure the belt

is able to withstand weight.

• The length of the belt shall be adjust properly, in

order to prevent the imbalance of the unit when

lifting.

3.3.2 Unit Support

• Unit shall be placed on a secured base, on

slab, curb or steel frame.

• Absorber should be installed to absorb the

unit vibration during operation

slab/ curb

absorber

4.1 Piping Length

Refrigerant Piping Connection

Vaccuming, Charging & Refrigerant Handling

• .Long refrigerant piping will affect the performance of the unit and shorten the lifespan of the compressor.

In the worst case scenerio, it will cause the compressor to break down.

Piping length should be as short as possible

• Special precautions must be taken when there is no choice but to use longer pipe lengths.

The following table shows the recommended piping length limits

• Accumulator is recommended to be added for any installation more than 32m in length

4.2 Piping Connection

• To ensure satisfactory operation and performance, the following points should be noted for the field

tubing arrangements of the complete refrigerant cycle.

• Liquid loops or oil traps must be provided according to the position of the outdoor and the indoor

units (depends on , whether the indoor unit is located above or below the outdoor unit).

• Filter dryer and sight glass (field supply) must be installed, Sight glass shall be installed after the filter

drier at the liquid line.

• Pipe shall be installed following tthe size listed in Fig. 3.1

• Leak test shall be carried out after braze connection.

• Both indoor and outdoor are brazed connection.

Warning:

• Make sure there is no flammable gas at the surrounding before the brazing work started.

Warning:

• DO NOT charge in flammable gas.

Caution:

• During the preparation, piping shall be properly covered to avoid the containmination of the system.

• The system shall be thoroughly vaccumed to 1.0 Pa (700mmHg) or lower,to remove the moisture and

dust from the system.

• The proper refrigerant charge should follow the volume as recommended by manufacturer.

For system optimization, refrigerant should be carefully added to the system until reasonable sub-cooling

is measured in the liquid line and reasonable suction superheat is measured at the compressor suction.

Suction and discharge pressures must be monitored carefully during the charging process.

• ADDITIONAL CHARGE

when the piping connecting length is exceeding the standard 7m, extra charge shall be added

Based on liquid pipe size per meter length:

Model Max. Length

(m)

Max. Height

(m)

Maximum number of

bends allowed

KODH 75-150 35 20 10

Caution:

Liquid line size Kg

1/2” 0.10

5/8” 0.17

Note: Above is the recommendation, actual charge level may be different due to the different application

and ambient condition.

5.2 Refrigerant Handling

Vaccuming, Charging & Refrigerant Handling

Electric Wiring

• Special Precautions When Dealing with Refrigerant R410A Unit

• Mixture of composition by weight : R32(50%) and R125(50%)

5.2.1 Components

5.2.2 Characteristic

• R410A liquid and vapor components have different compositions when the fluid evaporates or condenses.

Hence, when leak occurs and only vapor leaks out, the composition of the refrigerant mixture left in

the system will change and subsequently affect the system performance. DO NOT add new refrigerant to

leaked system. It is recommended that the system be evacuated thoroughly beforerecharging with R410A.

• When refrigerant R410A is used, the composition will differ depending on whether it is in gaseous or

liquid phase. Hence when charging , ensure that only liquid is being withdrawn from the cylinder or can.

This is to make certain that only original composition of R410A is being charged into the system.

• POE oil is used as lubricant for R410A compressor,

Extra precaution must be taken to avoid exposing the R410A system to moist air.

5.2.3 Handling and Installation Guidelines

• All precautionary measures; such as ensuring no moisture, no dirt or chips in the system, clean brazing

using nitrogen, and thorough leak check and vacuuming are equally important requirements. However,

due to its hydroscopic POE oil, additional precautions must be taken to ensure optimum and trouble-free

system operation.

• During installation or servicing, avoid prolong exposure of the internal part of the refrigerant system to

moist air. Residual POE oil in the piping and components can absorb moisture from the air

• Ensure that the compressor is not expose to open air for more than the recommended time specified by

its manufacturer (typically less than 10 minutes). Removed the seal-plugs only when the compressor is

about to be brazed.

• When charging R410A, ensure that only liquid is being withdrawn from the cylinder or can. This is to

ensure that only the original composition of R410A is being delivered into the system. The liquid

composition can be different from the vapor composition.

• Entire unit wiring diagram.

Caution:

• Field-installed wirings must comply with local codes and regulations. Voltage tolerance should be kept

at rated voltage ±10%.

• Check if the main power supply matches the nameplate rating before installation takes place.

• Each air-conditioning unit should be installed with independent circuit breaker (Field installed)

• Unit must be properly GROUNDED.

Power supply

Circuit Breaker (field supply)

Power supply wiring for unit

indoor unit

outdoor unit

Wired remote controller

Unit interconnecting wire

Earthh.

a a

Note:

75/100 c

Electric Wiring

• Recommended field installed wire size.

75 100 125 150

Indoor

Outdoor

Wiring wire No. × size Indoor

(mm2) Outdoor 5 × Min. 4 mm2 5× Min. 8mm2

Interconnectiong wire, No x size

1 x 1.5mm2

3 × Min. 1.5 mm2

Power Supply

380~415V/3ph/50Hz ~N 380~415V/3ph/50Hz ~N

5× Min. 1.5 mm2

5× Min. 6mm2

220~240V/1ph/50Hz ~N

380~415V/3ph/50Hz ~N

Model

CC CX

TB2 (C)

Blue

Brown

OLP

95 96

OLP

MF2

(1) (2) (3)

HP PP

Fuse 3.15A

TB1

LIVE

COMP

X1X2X3

HIMED

LOW

HANDSET

ID COIL SENSOR

ROOM SENSOR

TB3 (C)

TB3

MF1-1 MF1-2

CC CX

TB2 (C)

Blue

Brown

OLP

95 96

OLP

MF2

(1) (2) (3)

HP PP

Fuse 3.15A

TB1

TIMER SLEEP

HIGH

LOW

MED

TEMP

AUTO

DRY

FAN MODE

COOL

ON/OFF

FAN

HEAT

TIMER SLEEP

HIGH

LOW

MED

TEMP

AUTO

DRY

FAN MODE

COOL

ON/OFF

FAN

HEAT

MF1

IFC

LIVE

COMP

X1X2X3

HIMED

LOW

HANDSET

TB3 (C)

ID COIL SENSOR

ROOM SENSOR

IFC OLPF

TB3

Wiring Diagram : KFDH/KODH 75,100

OLP

95 96

Wiring Diagram : KFDH/KODH125/150

Controller Operation

The controller supports the following functions:

a) Mode：Cool, Dry, Fan, Heat

b) Indoor fan speed：Auto, High, Medium, Low (* For 75/100 model only)

c) Sleep mode

d) Compressor protections:-

1. Comp 3 minutes restart protection

2. Indoor coil anti freeze

e) Room sensor and indoor coil sensor failure monitoring.

f) Non volatile memory – keep system settings

g) Programmable On/Off timer

h) Random restart to minimize voltage dip during compressor first cut in

cycle upon power up.

2） Hardware setting

A 2 way DIP switch, default setting as SW1 on, SW2 off.

CAUTION: DON’T CHANGE THE SETTING.

3) Power Up

Upon power up, system will retrieve the most recent settings and system status from the

non volatile memory as below:-

a) Mode e) Key lock status

b) Set temperature（F or C） f) System status（On/Off）

c) Fan speed g) Temperature display option

d) Sleep

The above setting can be changed via wired control panel or remote handset. The latest

settings will be recorded into the memory.

Should the data in the non-volatile memory were invalid, system will start with the default

settings as follow:-

a) System status - Off d) Mode-Cool

b) Fan speed - High e) Key lock – off

c) Set temperature - 24 f) Temperature display- set temperature

4） Programmable Timer

Upon count down of the number of set hours, the system will switch from Off to On or On to

Off depending on its current status.

4） Programmable Timer

Upon count down of the number of set hours, the system will switch from Off to On or On to

Off depending on its current status.

5） Sleep mode (Set temperature will be increased)

Hour

Sleep on

0.5 1.0 2.0

Sleep off

Ts+0.5

Ts+1.0

Ts+2.0

Controller Operation

8） IR reception

System receives commands from handset.

9） Cool mode

In Cool mode, compressor will cut in if Tr - Ts >= 0.5°C and cut out if Tr - Ts =< (-1.0)°C,

subject to 3 minutes protections and minimum run time. Indoor fan speed can be manually

selected or determine by the system in Auto Fan speed according to the return air temp.

10） Dry mode

Indoor fan runs at low speed.

Compressor will cut out if:-

a) It has run for 10 minutes continuously or

b) Tr - Ts =< (-1.0)°C

It is then allow to cut in if:-

a) It has stop for 5 minutes and

b) Tr - Ts >= 0.5°C

11） Fan mode

Only High, Medium and Low speed selection is allowed (KFDH075,100 only) .

12） Error code

If multiple faults happen at the same time, the corresponding error code will be shown one after another.

13） Off mode

All output are off during system off state except indoor fan which are subject to the

minimum operating time guard where applicable.

6）Compressor protection

a) Comp restart protection

1. 3 minutes protection

2. Hardware Anti short cycle timer

Should the power supply is cut off and resume, compressor 3 minutes

protection control logic is as below:-

7）Temperature sensor fault

a) Return air sensor

Monitor continuously

b) Indoor coil sensor

• If comp is turned on, monitoring is done 5 minutes after comp running.

• If comp is stop, monitor continuously

Upon happening of any sensor fault, system is forced to Fan mode. It will then resume

to normal mode upon clearance of fault.

b) 90S minimum run time (compressor)

c) Indoor coil anti freeze

Power outage duration Restart protection timer

<180S 180S— 243S

>180S < 63S

Fault Error code

Room sensor fault E1

Indoor coil sensor fault E2

Comp fault E4

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