Technibel KAF96R5I, KPAF126R5I Technical Data & Service Manual

TECHNICAL DATA
& SERVICE MANUAL

INDOOR UNIT:

KAF96R5I
KPAF126R5I

SPLIT SYSTEM AIR CONDITIONER

KAF96R5I

KPAF126R5I

0.8180.492.0 03/2006

Model No. Product Code No.
KAF96R5I 387105968

387105969KPAF126R5I

IMPORTANT!
Please read before installation

This air conditioning system meets strict safety and operating
standards.
For the installer or service person, it is important to install or
service the system so that it operates safely and efficiently.

For safe installation and trouble-free operation, you must:

• Carefully read this instruction booklet before beginning.

• Follow each installation or repair step exactly as shown.

• Observe all local, state and national electrical codes.

• Pay close attention to all warning and caution notices given in
this manual.

•The unit must be supplied with a dedicated electrical line.

This symbol refers to a hazard or unsafe practice which can result
in severe personal injury or death.

This symbol refers to a hazard or unsafe practice which can result
in personal injury or product or property damage.

If necessary, get help

These instructions are all you need for most installation sites and
maintenance conditions.
If you require help for a special problem, contact our sale/service
outlet or your certified dealer for additional instructions.

In case of improper installation

The manufacturer shall in no way be responsible for improper
installation or maintenance service, including failure to follow the
instructions in this document.

SPECIAL PRECAUTIONS

• During installation, connect before the refrigerant system and
then the wiring one; proceed in the reverse orden when removing
the units.

When wiring

ELECTRICAL SHOCK CAN CAUSE SEVERE
PERSONAL INJURY OR DEATH. ONLY QUALIFIED,
EXPERIENCED ELECTRICIANS SHOULD ATTEMPT
TO WIRE THIS SYSTEM.

• Do not supply power to the unit until all wiring and tubing are
completed or reconnected and checked, to ensure the grounding.

• Highly dangerous electrical voltages are used in this system.
Carefully refer to the wiring diagram and these instructions when
wiring.
Improper connections and inadequate grounding can cause
accidental injury and death.

• Ground the unit following local electrical codes.

• The Yellow/Green wire cannot be used for any connection
different from the ground connection.

• Connect all wiring tightly. Loose wiring may cause overheating
at connection points and a possible fire hazard.

• Do not allow wiring to touch the refrigerant tubing, compressor,
or any moving parts of the fan.

• Do not use multi-core cable when wiring the power supply and
control lines. Use separate cables for each type of line.

When transporting

Be careful when picking up and moving the indoor and outdoor
units. Get a partner to help, and bend your knees when lifting to
reduce strain on your back. Sharp edges or thin aluminium fins on
the air conditioner can cut your fingers.

When installing...

• Keep all tubing runs as short as possible.

• Use the flare method for connecting tubing.

• Apply refrigerant lubricant to the matching surfaces of the flare
and union tubes before connecting them; screw by hand and
then tighten the nut with a torque wrench for a leak-free
connection.

• Check carefully for leaks before starting the test run.

NOTE:

Depending on the system type, liquid and gas lines may be either
narrow or wide. Therefore, to avoid confusion, the refrigerant
tubing for your particular model is specified as narrow tube for
liquid, wide tube for gas.

When servicing

• Turn the power OFF at the main power board before opening
the unit to check or repair electrical parts and wiring.

• Keep your fingers and clothing away from any moving parts.

• Clean up the site after the work, remembering to check that no
metal scraps or bits of wiring have been left inside the unit being
serviced.

• Ventilate the room during the installation or test

ing the refrigeration
system; make sure that, after the installation, no gas leaks are
present, because this could produce toxic gas and dangerous
if in contact with flames or heat-sources.

WARNING

CAUTION

WARNING

… In a ceiling

Make sure the ceiling is strong enough to hold the unit-weight.
It may be necessary to build a strong wooden or metal frame to
provide added support.

… In a room

Properly insulate any tubing run inside a room to prevent
"sweating", which can cause dripping and water damage to
walls and floors.

... In moist or uneven locations

Use a raised concrete base to provide a solid level foundation
for the outdoor unit. This prevents damage and abnormal
vibrations.

... In area with strong winds

Securely anchor the outdoor unit down with bolts and a metal
frame. Provide a suitable air baffle.

... In a snowy area (for heat pump-type systems)

Install the outdoor unit on a raised platform that is higher then
drifting snow. Provide snow vents.

When connecting refrigerant tubing

2

Page

1. SPECIFICATIONS

4

1-1 Unit specifications 4
1-2 Major Component specifications 6
1-3 Other Component specifications 8

2. DIMENSIONAL DATA

9

3. ELECTRICAL DATA

11

3-1 Electric Wiring Diagrams 11

4. ELECTRICAL BOX LAY-OUT

13

5. FUNCTION

14

5-1 System Operation concept 14
5-2 Fan Mode 16
5-3 Cool Mode 16
5-4 Heat Mode 16
5-5 Auto Cool/Heat Mode 17
5-6 Dry Mode 17
5-7 Protections 17
5-8 Indoor Unit Dry contact 19
5-9 Jumper Settings 20
5-10 Test Mode 20
5-11 Temperature Compensation 21

6. TROUBLESHOOTING

22

6-1 Single Split Sytem failures 22
6-2 Checking the refrigeration system 23
6-3 Indoor / Outdoor Unit diagnostic 24
6-4 Checking the main parts 28
6-5 Precautions 29

7. CHECKING ELECTRICAL COMPONENTS

30

7-1 Measurement of Insulation Resistance 30
7-2 Checking Continuity of Fuse on PCB Ass'

y

31

7-3 Checking Motor Capacitor 31

Table of Contents

3

1. SPECIFICATIONS

1-1 Unit Specifications

KAF96R5I

Power source

V

oltage ratin

g

Performance

Capacity

A

ir circulation

High/Med./Lo

w

m³/h

Features

Controls/Temperature controls
Control unit
Timer
Fan speed
Airflow direction Horizontal

Vertical
Air Filter
Power noise level High/Med./Low dB(A)
Refrigerant tubing connections
Refrigerant Narrow tube mm(in.)
tube diameter Wide tube mm(in.)
Refrigerant
Refrigerant tube kit / Air clean filter

Dimensions & Wei

g

ht

Unit dimensions Height mm

Width mm
Depth mm

Package dimensions Height mm

Width mm
Depth mm

Weight Net kg

Shipping kg

Shipping volume

m

3

DATA SUBJECT TO CHANGE WITHOUT NOTICE

Wireless remote control unit

See catalogue with the requested matching

Microprocessor/ I.C. thermostat

400 / 360 / 300

220 - 240 V ~ 50 Hz

230 V

Cooling Heating

265

18
20

0,13

560
200
770
620

9.52 (3/8)
R410A

Optional / Optional

700

Washable, Anti-Mold

51 / 48 / 42

Flare type

6.35 (1/4)

ON/OFF 24 hours

3 and Auto

Manual
Manual

4

KPAF126R5I

Power source

V

oltage ratin

g

Performance

Capacity
Air circulation

High

m³/h

Features

Controls/Temperature controls
Control unit
Timer
Fan speed
Airflow direction Horizontal

Vertical
Air Filter
Power noise level High dB(A)
Refrigerant tubing connections
Refrigerant Narrow tube mm(in.)
tube diameter Wide tube mm(in.)
Refrigerant
Refrigerant tube kit / Air clean filter

Dimensions & Wei

g

ht

Unit dimensions Height mm

Width mm
Depth mm

Package dimensions Height mm

Width mm
Depth mm

Weight Net kg

Shipping kg

Shipping volume

m

3

DATA SUBJECT TO CHANGE WITHOUT NOTICE

190
770
995

280
23,5
31,5
0,21

ON/OFF 24 hours

3 and Auto

Manual

Washable, Anti-Mold

Auto

55

Flare type

6.35 (1/4)

9.52 (3/8)
R410A

900

680

Optional / Optional

220 - 240 V ~ 50 Hz

230 V

Cooling Heating

Wireless remote control unit

See catalogue with the requested matching

700

Microprocessor/ I.C. thermostat

5

1-2 Major Component Specifications

KAF96R5I

Controller PCB

Part No.
Controls
Control circuit fuse

Remote Control Unit

Fan & Fan Motor

Type
Q'ty ……. Dia. and lenght mm
Fan motor model…Q'ty
No. of poles…rpm (230 V, High)
Nominal output W
Running Amps A
Power input W
Coil resistance (Ambient temp. 25 °C )

Ω

Safety devices Type

Operating temp. Open °C

Close

Run capacitor µF

VAC

Heat Exch. Coil

Coil
Rows
Fin pitch mm
Face area m²

DATA SUBJECT TO CHANGE WITHOUT NOTICE

1

1,4

0,185

1

450

Aluminium plate fin / Copper tube

0.12

150 ± 10

Automatic

26

GRY-WHT: 545÷630

WHT-VLT: 92÷105

VLT-YEL: 62÷71

GRY-BRN: 78÷90

Thermal protection

1…. Ø 100 / L 410

K35406-M01892…1

4…1196

27

STORM DCI

Microprocessor

250 V - 3,15 A

RC-7(RC)

Cross - flow

6

KPAF126R5I

Controller PCB

Part No.
Controls
Control circuit fuse

Remote Control Unit

Fan & Fan Motor

Type
Q'ty ……. Dia. and lenght mm
Fan motor model…Q'ty
No. of poles…rpm (230 V, High)
Nominal output W
Running Amps A
Power input W
Coil resistance (Ambient temp. 25 °C )

Ω

Safety devices Type

Operating temp. Open °C

Close

Run capacitor µF

VAC

Flap Motor

Type
Model
Rating
No. of poles…rpm
Nominal output W
Coil resistance (Ambient temp. 25 °C )

κ

Ω

Heat Exch. Coil

Coil
Rows
Fin pitch mm
Face area

DATA SUBJECT TO CHANGE WITHOUT NOTICE

2…. Ø 130 / L 180

250 V - 3,15 A

RC-7(RC)

Cross - flow

STORM DCI

Microprocessor

K48407-M01596…1

4…1160

21

Automatic

ORG-YEL: 211÷243

1.5

0,29

Thermal protection

145 ± 5

65
GRY-WHT: 298÷343
WHT-PNK: 421÷485
WHT-VLT: 93,5÷108
VLT-ORG: 93,5÷108

Synchro motor

M2LJ24ZE31

AC 208/230 V ; 50-60 Hz

440

2

1,8

0,192

8…2,5÷3

2,5÷3

16,45±15%

Aluminium plate fin / Copper tube

7

1-3 Other Component Specifications

KAF96R5I
KPAF126R5I

Thermistor ( Coil sensor TH1

)

Resistance

Κ

Ω

Thermistor

(

Room sensor TH2

)

Resistance

Κ

Ω

Displa

y

board ass

y

Model
Components

BUZZER

-

COOL led (GREEN)

HEAT led (RED)

10 ± 5%

10 ± 3%

8

2. DIMENSIONAL DATA

KAF96R5I

Unit: mm

9

KPAF126R5I

Unit: mm

10

3. ELECTRICAL DATA

3-1 Electric Wiring Diagrams

KAF96R5I

11

KPAF126R5I

12

4. ELECTRICAL BOX LAY-OUT

NOTE

DISPLAY BOARD operates when checking the system trough the Diagnostic Mode.
See SECTION 6.3 for additional details

JUMPERS settings are according to indoor unit type (cassette, ducted, floor-ceiling) and capacity.
See SECTION 5.9 for details

DRY CONTACT details according to SECTION 5.8

PCB

DISPLAY
BOARD

TERMINAL
PLATE

JUMPERS

FAN MOTOR
CAPACITOR

DRY CONTACT

INPUT

CONNECTOR

13

5. FUNCTION

COOLING HEATING COOLING HEATING

Maximum frequency 64Hz 81Hz 80Hz 93Hz
Minimum frequency 30Hz 30Hz 33Hz 35Hz
MaxFreqAsOATC 50Hz - 50Hz ­MaxFreqAsOAT1H - 65Hz - 75Hz
MaxFreqAsOAT2H - 60Hz - 60Hz

9000 Units 12000 Units

14

COOLING HEATING COOLING HEATING

Step 1 60Hz 60Hz 60Hz 60Hz
Step 2 70Hz 70Hz 70Hz 70Hz
Step 3 90Hz 90Hz 90Hz 90Hz

9000 Units 12000 Units

15

16

17

18

See Jumper Setting section 5.9 for the location of Dry Contact and J8

19

5.9 Jumper Settings

Indoor units JUMPERS are set according to the following table

J1 J2 J3 J4 J5 J6 J7 J8

(*)
O CCOOOOO
O CCOOC OO

O= OPENED jumper
C= CLOSED jumper
J2= Temperature compensation jumper.

Indoor unit

KAF96R5I

KPAF126R5I

Dry Contact
input

Model plug

20

5-11 Temperature Compensation (room air)

Units are factory set with Temperature Compensation DISABLED (jumper J2 CLOSED).
In case of indoor units installed on the ceiling, it is possible to ENABLE this feature
cutting the circuit track on the model plug as shown

21

22

23

24

25

26

27

28

29

7-1. Measurement of Insulation

Resistance

●

The insulation is in good condition if the resistance
exceeds 2MΩ.

7-1-1.Power Supply Wires

Clamp the grounding terminal of the power plug with a
lead clip of the insulation resistance tester and
measure the resistance by placing a probe on either of
the two power terminals. (Fig. 1)

Then, also measure the resistance between the
grounding and other power terminals. (Fig. 1)

7-1-2.Indoor Unit

Clamp a metallic part of the unit with the lead clip of
the insulation resistance tester and measure the
resistance by placing a probe on each terminal screw
where power supply lines are connected on the
terminal plate. (Fig. 2)

7-1-3.Outdoor Unit

Clamp an aluminum plate fin or copper tube with the
lead clip of the insulation resistance tester and
measure the resistance by placing a probe on each
terminal screw on the terminal plate. (Fig. 2)
Note that the ground line terminal should be skipped
for the check.

7-1-4.Measurement of Insulation

Resistance for Electrical Parts

Disconnect the lead wires of the desired electric part
from terminal plate, capacitor, etc. Similarly disconnect
the connector. Then measure the insulation resistance.
(Figs. 3 and 4)

Refer to Electric Wiring Diagram.
If the probe cannot enter the poles because the hole is

too narrow then use a probe with a thinner pin.

NOTE

7. CHECKING ELECTRICAL COMPONENTS

Ground

power plug
(Local supply)

probe

Insulation
tester

Terminal plate

Copper
tube or
metallic part

Clip

Insulation
tester

Probe

Copper
tube or
metallic part

Clip

Insulation
tester

Probe

Clip

Insulation
tester

Probe

Metallic
part

From fan motor,
compressor and
other parts

Fig. 2

Fig. 3

Fig. 4

The shape of the power plug may differ from that
of the air conditioner which you are servicing.

NOTE

Fig. 1

30

7-2. Checking Continuity of Fuse

on PCB Ass'y

●

Remove the PCB Ass’y from the electrical
component box. Then pull out the fuse from the PCB
Ass’y. (Fig. 5)

●

Check for continuity using a multimeter as shown in
Fig. 6.

7-3. Checking Motor Capacitor

Remove the lead wires from the capacitor terminals,
and then place a probe on the capacitor terminals as
shown in Fig. 7. Observe the deflection of the pointer,
setting the resistance measuring range of the
multimeter to the maximum value.

The capacitor is “good” if the pointer bounces to a
great extent and then gradually returns to its original
position.

The range of deflection and deflection time differ
according to the capacity of the capacitor.

Fuse

PCB Ass’y

Fuse

Compressor motor
capacitor

Fan motor
capacitor

Multimeter

Fig. 5

Fig. 6

Fig. 7

31

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