Soleus Air KFTHP-09, KFTHP-12, KFTHP-18, KFTHP-24 User Manual

TCL

WALL MOUNTED SPLIT-TYPE AIR CONDITIONERS

SERVICE MANUAL

Models

KFTHP-12

KFTHP-18

KFTHP-24

No.TE080528

CONTENTS

1. IMPORTANT NOTICE ···································2

2. TECHNICAL SPECIFICATION ·····················3

3. OPERATION DETAILS·······································4

4. ELECTRICAL SCHEMATIC DIAGRAM ·········· 13

5. EXPLOSION VIEW ····························16

6. PARTS LIST ·············22

IMPORTANT NOTICE

TCL Air Conditioner Service ManualTCL Air Conditioner Service ManualTCL Air Conditioner Service Manual

TCL Air Conditioner Service Manual

This service manual is intended for use by individuals possessing adequate backgrounds of electrical, electronic and mechanical experience.

It is

to be installed and service by a licensed HVAC technician. Any

attempt to repair the appliance may result in personal injury and property damage. The manufacturer or seller cannot be responsible for the interpretation of this information, nor can it assume any liability in connection with its use.

The information, specifications and parameter are subject to change due to technical modification or improvement without any prior notice. The accurate specifications are presented on the nameplate label.

How to order spare parts

To have your order filled promptly and correctly, please furnish the following information:

1. Model No. with Indoor or Outdoor

2. No. in the Explosion View

3. Part Name

4. The quantity you ordered

TCL Air Conditioner Service Manual

Technical Specifications

Model No. KFTHP-12 KFTHP-18 KFTHP-24

Type Heating pump Heating pump Heating pump Control type Remote Remote Remote Rated cooling capacity Btu/h 12500 18000 24000 Rated heating capacity Btu /h 12000 17300 23500 SEER Btu/W.h 13.1 13.3 13.0 HSPF Btu/W.h 8.8 8.1 8.5 Moisture removal Liters/h 1.2 1.5 2.0

Indoor noise level at cooling

Outdoor sound power level dB(A) 52 54 59

Electrical Data

Power supply 60Hz/1P Voltage range V 208-230V 208-230V 208-230V

Rated current

Rated input

Refrigerating System

Refrigerant/Charge Gram R410A R410A R410A

Compressor

Expansion device Capillary tube Defrosting system Microcomputer controlled reverse system

Fan System

Indoor air circulation/Hi m3/h 700/730 950/1000 1400/1450 Indoor fan type Cross flow Cross flow Cross flow

Motor rotating speed H/M/L

Indoor fan motor output W 20 60 54 Outdoor air circulation m3/h --- --- ---- Outdoor fan type Propeller fan Propeller fan Propeller fan Outdoor fan speed rpm 860 750 860 Outdoor fan motor output W 31 76 150

Connections

Refrigerant coupling Flare type Connecting pipe

Connecting wiring Drainage pipe O.D 16mm

Others

Suitable area m2 15~23 20~35 30~50

(W x H x D) Net weight

(W x H x D) Gross weight Loading Capacity 40’/40’HC ------ ------ ------

High dB(A) 42 56 57 Med. dB(A) 40 54 55 Low dB(A) 38 50 52

Cooling A 4.6 6.7 9.7 Heating A 4.6 6.4 9.7 Cooling W 1000 1550 2050 Heating W 1000 1500 2050

Type Rotary Rotary Rotary Model ------------------ ----------------- -------------- LRA A ------ ------- --------------- MFG ----------------- ----------------- ---------------

Cooling rpm 1330/1150/950 1550/1230/1110 1550/1230/1110 Heating rpm 1330/1150/950 1550/1230/1110 1550/1230/1110 Dry rpm 1080 1100 1100 Sleep rpm 1080 1100 1100

Gas Inches 3/8'' (9.52) 1/2'' (12.7) 5/8'' (15.88) Liquid Inches 1/4'' (6.35) 1/4'' (6.35) 3/8'' (9.52) Size × Core number

Indoor mm 898×280×202 1033×313×202 1250×325×245 Net dimensions Outdoor mm 760×552×256 902×660×307 900×800×360 Indoor kg 11 14 22 Outdoor kg 34 47 59 Indoor mm 995×365×298 1103×395×292 1317×422×338 Packing dimensions Outdoor mm 863×605×376 1027×705×433 1031×925×447 Indoor kg 14 17 26 Outdoor kg 37 54 65

3×1.5; 2×0.75

3×1.5; 2×0.75 2×0.2(2×0.33)

3×2.5

Operation Details

TCL Air Conditioner Service Manual

Remote controller

The remote controller transmits signals to the system.

SLEEP

TIMER ON

FEEL COOL DRY FAN HEAT

TMIER OFF

AUTO HIGH MID LOW SWING

SLEEP

FAN

TIMER

MODE

SWING

ON/OFF

ON/OFF button

Used to start and stop operation when pressed.

TIMER button

Used to select TIMER operation.

UP button (TOO COOL button)

Used to increase the set room temperature

and time.

DOWN button (TOO WARM button)

Used to decrease the set room temperature and time.

SLEEP button

Used to set or cancel sleep mode operation.

VANE control button

Used to adjust airflow direction.

FAN SPEED control button

Used to select the indoor fan motor speed: Auto, High, Mid and Low.

MODE button

Used to select the type of operation mode: Feel, Cooling, Dry, Fan and Heating(Only for Heat Pump).

Note: Each mode and relevant function will be further specified in following pages.

Remote Control

The remote controller is not preset as Cooling Only Air Conditioner or Heat Pump by manufacturer. Each time after the remote controller replace batteries or is energized, the arrowhead will flash on the front of

Heat or Cool on LCD of the remote controller. User can preset the remote controller type depending on the air conditioner type you have purchased as follows: Press any button when the arrowhead flashes on the front of Cool , Cooling Only is set. Press any button when the arrowhead flashes on the front of Heat , Heat Pump is set. If you don t press any button within 10 seconds, the remote controller is preset as Heat Pump automatically.

Note :

If the air conditioner you purchased is a Cooling Only one, but you preset the remote controller as Heat Pump, it doesn t matter. But if the air conditioner you purchased is a Heat Pump one, and you preset the remote controller as Cooling Only, then you CAN NOT preset the Heating operation with the remote controller.

REMOTE CONTROLLER

The four types of remote controller is as follow:

GYKQ-05 GYKQ-10e (optional) GYKQ-11e (optional) GYKQ-12e (optional)

Note: The function of remote controller above is the same.

TCL Air Conditioner Service Manual

Electronic Controller

1. Safety Control

(1) Time Delay Safety Control

 3 minutes delay for compressor---The compressor is ceased for 3minutes to balance the pressure in the

refrigeration cycle in order to protect the compressor.

 2 minutes delay for 4-way valve---The 4-way valve is ceased for 2 minutes to prevent the

refrigerant-gas abnormal noise when the HEATING operation is OFF or switch to the other operation

mode.

(2) Indoor Pipe Temperature Sensor Frost Prevention Control

When the indoor pipe temperature sensor reads

sensor frost prevention control starts. The compressor and outdoor fan stop and indoor fan operates at high

speed for 3 minutes. After that, if the indoor pipe temperature sensor reads less than prolonged until the indoor pipe temperature sensor reads 41℉ or more.

(3) High Temperature Protection Control

During HEATING operation, the outdoor fan motor and compressor are controlled by the indoor pipe

temperature to prevent the high temperature of compressor. Outdoor fan OFF: when the indoor pipe temperature is ≥ Outdoor fan ON: when the indoor pipe temperature is ≤118.4℉ Compressor OFF: when the indoor pipe temperature is ≥ Compressor ON: when the indoor pipe temperature is ≤

2. “I Feel” Mode Operation

(1) When the “I Feel” mode is selected, the operation mode and initial set temperature are determined by the

initial room temperature at start-up of the operation except to turn off the air conditioner and operates it

again.

(2) If the mode is change to “I Feel” mode from other mode, the “I Feel” mode doesn’t operate until compressor

stop for more than 3 minutes.

COOLING

DRY

HEATING for Heat Pump Type

FAN for Cooling Only Type

 In the “I Feel” mode , when the controller receives the up or down single of temperature, the set

3. “COOLING” Mode Operation

Mode

temperature can adjust by 33.8

Initial room temperature

℉ upper or lower. The biggest you can adjust by 35.6℉ upper or lower.

(1) When the COOLING mode is selected without setting temperature, the system will set the set temperature at

７８．８℉ automatically with the AUTO FAN speed.

(2) When selecting the COOLING mode operation, the system will operate according to the setting by the

remote controller and the operation is as following:

32℉ or below for 5 minutes, the indoor pipe temperature

41℉ this control

１２２℉

１４３．６℉

118.4℉

Initial set temperature

７８．８℉ or more

６８℉ to 77℉

Less than 68℉

７５．２℉

６４．４℉

73.4℉

TCL Air Conditioner Service Manual

Room Temp.

Set TEMP. ＋1.8 Set TEMP. －1

Time

Indoor Fan Set Speed Set Speed Set Speed Set Speed Set Speed

Compressor ON OFF ON OFF ON

Outdoor Fan ON OFF ON OFF ON

4. “DRY” Mode Operation

(1) The system for DRY operation used the same refrigerant circle as the cooling circle.

(2) When the system operates in DRY mode ,at first it operates in cooling mode at

℉ ℉

More than 2 min More than 2 min More than 2 min More than 2 min More than 2 min

６０．８℉ or ６４．４℉ for 3 minutes.

And then, the system operates in cooling mode with low speed that regards the temperature of the room temperature sensor reads decrease 35.6℉ as the set temperature. During the course of this, the fan speed

set operation is failing but the vane motor can be controlled.

5. “HEATING” Mode Operation (Only available for Heat Pump)

(1) When the HEATING mode is selected without setting temperature, the system will set the temperature at

７３．４℉ automatically with the AUTO FAN speed.

(2) When selecting the HEATING mode operation, the system will operate according to the setting by the

remote controller and the operation is as following:

Set Temp. ＋1.8℉ Set Temp. －1

Room Temp.

Time

Compressor ON OFF ON OFF ON

Outdoor fan ON OFF ON OFF ON

(3) In HEATING mode, the indoor fan motor speed is controlled by Cold Air Prevention Control.

(4) Cold Air Prevention Control

 The function is intend to prevent cold air from being discharged when the heating operation starts or

when defrosting.

 The indoor fan speed will be controlled as following.  The vane angle is at the angle C(100°).

Set Speed Set Speed

.8℉

More than 2 min More than 2 min More than 2 min More than 2 min More than 2 min

Temperature raise

93.2

℉

Temperature drop

Low Speed

８０．６℉

Low Speed

77℉

Stop the fan

73.4℉

Stop the fan

During the heating operation, if the compressor stops that it will adjust the indoor fan speed, after 30



seconds to stop the fan.

TCL Air Conditioner Service Manual

(5) Defrost

Defrosting of the outdoor heat exchange is controlled by the microprocessor with detection by the indoor

pipe temperature sensor.

Defrost control type is according to the JC on the PCB whether is connected.

 When the JC is connect on the PCB

When one of the conditions of A, Band C is satisfy, the defrosting operation stars.

A. IPT--- indoor pipe temperature

℉)

In the condition A, it must satisfy the conditions a), b)and c) then into defrosting operation.

a) IPT1 satisfy IPT1=IPT

b) t5≥50minutes(the compressor cumulative operation time≥50 minutes, t5 is permitted move

and lower than t1 too). IPT＜104℉，and keep 2 minutes.

According to the condition A enter the defrosting operation, the first defrosting operation time is

minutes; After defrosting operation one cycle, and then judge and regulate the defrosting operation

time.

B. After the compressor cumulative operation time exceeds 120 minutes and the temperature of the IPT

is less than ９５

℉ for 2 minutes. When the defrosting operation time on this condition exceeds

－△IPT（１４．４℉）

MAX

8 minutes, it will terminate.

C. After the compressor operates continuously for 20 minutes and the IPT is less than 73.4℉ or from

the last time of defrosting operation is 50 minutes or more interval. When the defrosting operation

time on this condition exceeds 10 minutes, it will terminate.

 When the JC isn’t connected on the PCB

When the conditions of a) or b) is satisfy, the defrosting operation starts.

a) Under the heating operation, the compressor cumulative operation time exceeds 50 minutes and the temperature of the outdoor pipe temperature sensor reads lower than －

b) Under the heating operation, the compressor cumulative operation time exceeds 50 minutes, if the

indoor pipe temperature sensor reads lower than

℉ continuously for 2 minutes.

104

１４．４℉

Note: If haven’t the outdoor pipe temperature sensor that uses the condition b) to defrost, against

use the condition a).

 Defrost terminating conditions

When the condition c) or d) is satisfy, the defrosting operation will termin

c) The outdoor defrost sensor reads

℉ or more.

ate.

d) The defrosting time exceeds 10 minutes.

TCL Air Conditioner Service Manual

 Defrosting time chart

Outdoor Fan ON OFF ON

Revering Valve ON OFF ON

Compressor Relay ON OFF ON OFF ON

39S 5S Defrost Count MAX 12min 19S 15S t

6. “FAN” mode operation

The indoor fan motor always turns on at the set speed and the vane motor turns on at the set fettle.

7. 4-way Valve control

HEATING ON

COOLING/DRY OFF

The 4-way valve reverses for 5 seconds right before start-up of the compressor as following chart:

COOLING/DRY TO HEATING HEATING TO COOLING/DRY

Compressor

4-way Valve

5s 2min

Outdoor Fan

8. “SLEEP” mode

When the SLEEP button is pressed, the SLEEP mode is selected as following:

 The indoor fan speed is set at the low speed, the power lamp and the sleep lamp is on, the temperature off

after 5 minutes.

 When selecting COOLING/DRY operation with SLEEP mode, the set temperature will be raised by 1

hour later and by ３．６℉ 2 hour later. When selecting HEATING operation with SLEEP mode, the set temperature will be dropped by 1．８℉ 1



hour later and ３．６℉ 2 hour later.

 After the System operates in SLEEP mode for 8 hours, it will stop automatically.

9. Fan motor control

(1) Rotational frequency feedback control

The indoor fan motor is equipped with a rotational frequency sensor, and outputs signal to the

microprocessor to feedback the rotational frequency. Comparing the current rotational frequency with the

target rotational frequency, the microprocessor adjusts fan motor electric to make the current rotational

frequency close to the target rotational frequency. With this control, when the fan speed is switched, the

rotational frequency changes smoothly.

(2) When the rotational frequency feedback signal has not output for 5 seconds (or when the microprocessor

can’t detect the signal for 5 seconds), the fan motor is regarded locked-up. Then the electric current to the fan

．８

℉ 1

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