Friedrich SP05A10 User Manual

ROOM AIR CONDITIONER

SP05A10

Manual

SERVICE

CONTENTSAIR CONDITIONER

11. Precautions

12. Product Specifications

13. Installation and Operating

Instructions

14. Disassembly and Reassembly

15. Troubleshooting

16. Exploded Views and Parts List

17. Block Diagram

18. PCB Diagram

19. Wiring Diagram

10. Schematic Diagram

1. Precautions

1. Precautions

1. Warning: Prior to repair, disconnect the
power cord from the circuit breaker.

2. Use proper parts: Use only exact
replacement parts. (Also, we recommend
replacing parts rather than repairing them.)

3. Use the proper tools: Use the proper tools
and test equipment, and know how to use
equipment may cause problems later­intermittent contact, for example.

4. Power Cord: Prior to repair, check the
power cord and replace it if necessary.

5. Avoid using an extension cord, and avoid
tapping into a power cord. This practice
may result in malfunction or fire.

6. After completing repairs and reassembly,
check the insulation resistance.
Procedure: Prior to applying power, measure
the resistance between the power cord and the
ground terminal. The resistance must be
greater than 30 megaohms.

Fig. 1-1 Avoid Dangerous Contact

7. Make sure that the grounds are adequate.

8. Make sure that the installation conditions
are satisfactory.
Relocate the unit if necessary.

9. Keep children away from the unit while it is
being repaired.

10. Be sure to clean the unit and its surrounding
area.

Fig. 1-2 No Tapping and No Extension Cords

Fig. 1-3 No Kids Nearby!

Fig. 1-4 Clean the Unit

FRIEDRICH AIR CONDITIONING CO. 1-1

2.Product Specifications

2-1 Table

Item

Type

Dimension:

(Width×Height×Depth)

Voltage

Phase

Frequency

Operation Current

Power Consumption

Refrigerant Type

Refrigerant Change

Capacity

EER

Net Weight

Condenser

Condenser Fan

Evaporator

Evaporator Fan

Fan Motor

Compressor(Rotary)

Overload Protect

Compressor Capacitor

Fan Motor Capacitor

Fan Speed

Thermo Control

Unit of

Measure

WINDOW

mm

Volt 115

- SINGLE

Hz 60

A 4.6

W 500

FREON R22

g 300

BTU/h 5400

BTU/h.W 10.8

Kg 18.5

Row

Type Propeller Fan

Row

Type Blower

MODEL YGN50-6K(E)

MODEL 39A050HS1KA

- MRA12145-12008

μF/VAC

μF/VAC

RPM 1060/1010/960

- THERMISTOR

SP05A10 REMARK

424×310×326

2×15

2×10

35/270

3.5/270

Two Capacitor combined to be the one

with below spec: 35/3.5µF 270VAC

FRIEDRICH AIR CONDITIONING CO. 2-1

MEMO

2-3 FRIEDRICH AIR CONDITIONING CO.

2-2 Dimensions

424

310

310

2-2 Dimensions

2-2 Dimensions

2-2 Dimensions

2-2-1 Main Unit

2-2-1 Main Unit

2-2-1 Main Unit

2-2-1 Main Unit

Front view

Front view

Front view

Front view

326

Side view

Side view

Side view

Side view

(Unit : mm)

(Unit : mm)

(Unit : mm)

(Unit : mm)

2-2-2 Remote Control

2-2-2 Remote Control

2-2-2 Remote Control

2-2-2 Remote Control

Remote control

transmission indicator

Operating mode

( Cool, Dry, Fan)

Temperature setting

Sleep mode

Energy Saving mode

Fan speed

On Timer setting

Off Timer setting

Battery discharge indicator

Mode selection button

(Cool, Fan, Dry)

Temperature adjustment
buttons

Sleep timer setting button

Fan speed adjustment
button

Energy Saving button

Timer setting button

Timer Set/Cancel button

On/Off button

2-4 FRIEDRICH AIR CONDITIONING CO.

3. Installation and Operating Instructions

3-1 Installation

3-1-1 Selecting Area for Installation

1. Make sure that you install the unit in an area
providing good ventilation. The air conditioner
must not be blocked by any obstacle affecting the
air flow near the air inlet and air outlet.

2. Make sure that you install the unit in an area that
allow good air handling. The installation area
must be able to endure vibration from the unit.

3. Make sure that you install the unit away from
heat or vapor.

4. Make sure that you install the unit in an area
which is cool and has adequate space.

5. Make sure that you install the unit in an area
away from TVs, audio units, cordless phones,
fluorescent lighting fixtures and other electrical
appliances (obtain a clearance of at least one
meter).

6. Make sure that you install the unit in an area
which provides easy drainage for condensed
water.

7. Make sure that you install the unit in an area not
exposed to rain or direct sunlight.
(Install a separate sunblind if exposed to direct

sunlight.)

8. Make sure that you install the unit in an area
allowing good air movement. Do not install it in
a space that would cause noise amplification of
noise.

9. Fix the unit firmly if mounted in a high place.

Caution:

Do not use the air conditioner in the following environments : greasy areas (including areas near
machines), or marine areas. Contact your local dealer for advice.

FRIEDRICH AIR CONDITIONING CO. 3-1

3-2 Function Description

3-2-1 Cooling operation mode

The compressor is turned on and off according to the ambient temperature and set temperature.

1) Compressor on and off control

• Compressor on and off control according to the ambient temperature
The compressor is turned off when "ambient temperature = set temperature

*

The compressor is turned on when "ambient temperature = set temperature +1˚C"

*

2) Default value after power reset ➔ set temperature = 75˚F

Fan speed = High

3) Set temperature indicating (setting) range : 1˚F interval from 64˚F to 86˚F.

3-2-2 Fan operation mode

1) If "Fan operation mode" signal is received from remocon or panel.

➔ the compressor is immediately turned off and only fan motor is operated at set blowing speed.
➔ it changes such as "High ➔ Med ➔ Low ➔ High"( if Fan speed is selected).

2) The initial Fan motor speed is set to "High".

3) The set temperature can not be indicated and set.

3-2-3 Energy saver operation mode

If the compressor turn off at the cooling operation, the fan motor turn off after operation during the fixation

*

time only, and operation that energy saver by turn off the fixation time only, and operation that energy saver
by turn off the motor continuously before the condition of the compressor on.
The fan motor is not operated at flow wind operation.

*

Energy saver operation specification at the cooling operation.

*

1) Fan motor control in compressor on : operate with setting wind speed

2) Fan motor control in compressor off : After compressor off, the fan motor is operated breeze for 2 minutes
and then it turn off.

3) After the fan motor off, the compressor and fan motor is operated normally when the compressor on.

3-2 FRIEDRICH AIR CONDITIONING CO.

Installation and Operating Instructions

3-2-4 Sleep operation mode

1) Enable to sleep operation only when cooling operation.

2) First, 7-SEG LED DISPLAY "SLEEP" while 15 second, Second, 7-SEG LED DISPLAY "8Hr"
And, automatically SET OFF after operated while 8 Hour

3) If sleep operation, setting Temperature rise 1˚C after 1 Hour

4) ON TIMER operation, not operation, ENERGY SAVER operation, not sleep operation.

3-2-5 Dry operation mode

If the atmosphere in the room is very humid or damp,use this operation mode. It can remove excess humidity

without lowering the room temperature too much.

) The quantity of air is adjusted automatically.

1

3-2-6 LED display indication in case of error detection

ERROR OPERATION

ROOM THERMISTOR

(OPEN or SHORT)

1) Set operation in case of error occurrence.

• Malfunction of each temperature sensor (open, short)

- Error mode display, warning sound.

- The operation status is off.

7-SEG

LED DISPLAY

E1 displayed

FRIEDRICH AIR CONDITIONING CO. 3-3

MEMO

3-4 FRIEDRICH AIR CONDITIONING CO.

4. Disassembly and Reassembly

4-1 Compressor Replacement Flow Chart

Locate cause of defect

Release refrigerant

Disconnect electrical wiring

from compressor

Cut refrigerant lines

from compressor

Plug disconnected lines

Replace compressor

Inspect electrical
wiring for defects,
and terminals for
correct and secure
connections

Y

Problem?

N

Corrective action

Solder discharge line

Check refrigerant oil level

Y

Low oil level?

Solder suction line Use nitrogen gas

N

Perform soldering function

Fill system with

nitrogen gas

Check for leakage

Leakage?

Y

N

Release nitrogen gas?

Evacuate system

Add oil as necessary

Recharge system

Pinch and braze filling tube

FRIEDRICH AIR CONDITIONING CO. 4-1

4-2 Checking the oil

Fill the transparent container with 10cc of oil, and then conduct the test.

4-2-1 Oil quality

Condition of

Refrigerant Cycle

Normal

Over-heated

Compressor Damage

Color
Straw Yellow
Brown Color

Dark Brown

Oil Condition

Odor

No Odor

Pungent oil

4-2-2 Replacing and refilling the refrigerant oil

1. Change the compressor - DO NOT recharge the oil as the compressor itself is
already charged.

2. Change the condenser .... add 50cc

3. Change the evaporator .... add 50cc

4. When the refrigerant is replaced .... add 30cc oil.

5. After vacuum is completed, the oil is filled through the high pressure side.

6. In the event of a refrigerant leak, generally it is not necessary to add oil.

(Unless the oil has leaked significantly.)

Remarks

Return with the system

-

Change the oil
Change the oil

4-2 FRIEDRICH AIR CONDITIONING CO.

4-3.Disassembly and Reassembly Procedure(SP05A10)

Stop operating the air conditioner, and pull out the power cord before repair.

No. Part Name Procedures Remarks

1 Ass’y Grille

2 Ass’y Cabinet

1.Pull the Grille air inlet and Guard air filter out.

2.Remove the screw on the panel front.

3.Hold the lower part of panel with two hands

while pressing down on both sides of the lower

part of the cabinet, pull it forward by about

30mm,and then lift it up carefully for removal.

1.Remove all screws on the both side of the

cabinet .

2.Take the cabinet upward.

3 Ass’y Control

1.Remove the earth screw fixed on the base.

2.Remove 3 screws fixed on the partition.

3.Remove the screw fixed for the power cord.

4.Un-connect the motor wire and comp lead

wire, then take out the control box upward.

(The picture maybe have a little

different from actual product)

FRIEDRICH AIR CONDITIONING CO. 4-3

Disassembly and Reassembly Procedure(SP05A10)

No. Part Name Procedures Remarks

4 CASE EVAP

UP & ASSY

1.Take the case evap up forward carefully.

(tear all the seal on it before )

EVAP

2.Pull the frame up upward.

5 Blower

1.Remove all screws on the evaporator.

2.Pull the evaporator from frame low carefully.

3.Remove the nut and remove the Blower.

6 Case Cond &

Fan Propeller

& Motor Fan

1.Remove 2 screws on the rear side of the

base pan, and all screws fixed on case cond.

2.Pull up the condenser from the base pan.

3.Remove the nut and remove the Propeller

fan.

4.Remove the screw fixed on the partition and

earth screw fixed on the base pan, then take

out the motor backward.

4-4

FRIEDRICH AIR CONDITIONING CO.

5. Troubleshooting

Check the basic checkpoints first to determine whether it is machine trouble or a problem
in the operation method. When it is not related to the basic checkpoints, perform checking
in accordance with the procedures of troubleshooting by symptom.

5-1 Basic Checkpoints for Troubleshooting

1) Is the voltage of the power source appropriate ?

(1) It should be within the rating voltage ±10% range.
(2) The air conditioner may not operate properly when the voltage is out of this range.

2) Is the connection with the fan motor, compressor wire, and starting condenser

appropriately made ?

3) The symptoms listed in the table below are not indicative of machine trouble.

Symptom Cause and check

No operation • Check whether there is power failure or the power plug is pulled out.

• Check whether the unit is stopped as a result of completion
of the sleep time.

• Pull out the power plug for ten seconds, and then insert it again.

Air flows, but • Check whether the Air filter is clogged with dust or is dirty.
no cooling • Check whether the desired temperature is too high. Set the desired

temperature to a lower level than the current temperature.

• Check whether it is in "FAN" mode.

The remocon does • Check whether battery is completely depleted.
not operate • Check whether the battery is properly inserted.

• Check whether the receiving window of the remocon for the assembly
main PCB is blinded.

• Check whether the remocon is affected by jamming due to a neon sign.

No temperature • Check whether the unit is in "FAN" mode.
setting (In "FAN" mode, only the current temperature is displayed, and the

desired temperature is not set.)

❈Checking and Display of Fault Area

ERROR OPERATION

ROOM THERMISTOR (OPEN OR SHORT)

ERROR OPERATION

E1 displayed

FRIEDRICH AIR CONDITIONING CO. 5-1

5-2 Troubleshooting by Symptom

5-2-1 No power

1) Check points
(1) Is the voltage of the power source normal ? (the rating voltage ±10% range.)

(2) Is the electric wire in good contact ?(CN 71, RY 71)
(3) Is the output voltage of the IC01(KA 7812) normal ?(DC 11.5V ~ DC 12.5V)
(4) Is the output voltage of the IC02(KA 7805) normal ?(DC 4.5V ~ DC 5.5V)

Turn off the power, and then turn it on again five

seconds later.

Y

Dose the buzzer sound, when the power on?

N

Normal operation.

Check whether the "COOLING ICON" LED lamp is

on, and the operation starts when pressing the

ON/OFF button of the remocon.

N

Is the F701(3.15A) fuse blown?

N

Is the primary voltage of the transformer normal?

(the rating voltage ±10% range.)

Y

Is the secondary voltage of the transformer normal?

(AC 13V ~ AC 17V)

Y

Is the rectifier diode bridge(BD61) normal?

Y

- Is the voltage of DC 17V ~ DC 23V applied at both
ends of the C101 electrolytic condenser?

- Is the voltage of DC 12V applied at both ends of
the C102 electrolytic condenser?

- Is the voltage of DC 5V applied at both ends of
the C103 electrolytic condenser?

Y

Normal operation.

Y

Replace the fuse.

N

Check the power cord and electric wire.

N

Check and replace the trans.

N

N

• Check the BD61 for cold
soldering.

• Replace the rectifier diode

• Check both ends of the C101 for
short and cold soldering.

• Check the +12V for a short.

• Check the +5V for a short.

• Check and replace the C101~104.

Y

N

Are the IC01(KA7812) or IC02(KA7805) normal?

Y

Replace the assembly main PCB.

• Check the IC01 or IC02 for cold
soldering and a short.

• Replace the IC01 or IC02.

5-2 FRIEDRICH AIR CONDITIONING CO.

5-2-2 When the Touch Key pad and Led Display

1) Check points
(1) Is the voltage of the power source normal ? (the rating voltage ±10% range.)

(2) Is the electric wire in good contact ?(CN71, RY71)
(3) Is the connection of the assembly main PCB, and TOUCH KEY PAD in good

contact? (SW01-SW05)

Turn off the power, and then turn it on again

five seconds later.

Troubleshooting

Normal operation

Check the micom
(IC05) for a short,
and replace it.

Check the micom
(IC05) for a short,
and replace it.

Check the Q901~
Q905 for a short,
and replace it.

Check the IC06
for a short, and
replace it.

N

N

N

N

N

When the LED display is

not operated.

Is the voltage of the micom

(IC05) No.1, 2, 38~43 port a

square wave?

Is the voltage of the micom

(IC05) No.3, 4, 10, 11, 44 port

a square wave?

Is the voltage of the

Q901 ~ Q905 square wave?

Is the voltage of the

IC06 No. 10~16 a square

value?

When the membrane key is

not operated.

Y

Is the voltage of the

micom (IC05) No.13, 14 port

a square wave?

Y

N

Normal operation

N

Check the micom
(IC05) for a short,
and replace it.

YY

Is the voltage of the micom

(IC05) No.3, 4, 10, 11, 44

port a square wave?

N

Check the micom
(IC05) for a short,
and replace it.

YY

Replace the membrane

key pad.

Y

Y

Replace the membrane key pad

FRIEDRICH AIR CONDITIONING CO. 5-3

Troubleshooting

5-2-3 When the remocon is not operated

1) Check points
(1) Is the voltage of the power source normal ? (the rating voltage ±10% range. )

(2) Is the electric wire in good contact ? (CN71, RY71)
(3) Is the assembly main PCB in good contact with the TOUCH KEY PAD(SW01-SW05)
(4) Is the battery voltage of the remocon above DC 2.7V?

Turn off the power, and then turn it on

again five seconds later.

Dose the Buzzer sound, when the power on?

Y

Check whether the "COOLING ICON" LED lamp is on

and th operation starts when pressing the

on/off button of the remocon.

N

Is the battery voltage of the remocon above

DC 2.7V?

Y

Does the X-TAL(RJ 455JB) oscillate normally?

Y

Is the collector voltage of the remocon Q1, Q2

a square wave?

Y

N

Go to the clause "No power".

Y

The remocon is normally operated.

N

Replace the battery.

N

N

• Check the X-TAL for cold soldering
and a short.

• Replace relevant components.

• Check the micom(ICT1) Q1, and
Q2 for cold soldering and a short.

• Replace relevant components.

Is the input voltage of the micom(IC05) No.15

pin of the assembly main PCB a aquare wave?

N

• Check the R415 components.

• Check the assembly main PCB
micom(IC05).

Y

Replace the assembly main PCB.

5-4 FRIEDRICH AIR CONDITIONING CO.

5-2-4 When the compressor is not operated

1) Check points
(1) Is the voltage of the power source normal ? (the rating voltage ±10% range. )

(2) Is the desired temperature lower than the indoor temperature in the “COOL” mode?

(Compressor stopped)
(3) Is the starting condenser in good contact?
(4) Is the electric wire in good contact ? (CN71, RY71)
(5) Is the output voltage of the IC01(KA7812) and IC02(KA7805) normal ?

Turn off the power, and then turn it on again five

seconds later.

Dose the Buzzer sound, when the power on?

Y

Troubleshooting

N

Go to the clause "No power".

Check whether the "COOLING ICON" LED lamp is on

and the operation starts when pressing the on/off

button of the remocon.

Y

Check whether the compressor is activated in three

minutes after turning on the power with the "CoolING

ICON" LED lamp being switched on when selecting the

cool mode of the remocon.

N

Is the IC03 output normal?

- When the compressor is on, IC03
No. 13 pin

→ Low.

Y

Does the relay(RY71) operate normally?

- When the compressor is ON, the RY71 should operate.

Y

Is the compressor normal?

Y

N

• Go to the clause "when he remocon
does not operate".

Y

Normal operation.

N

N

N

• Check the IC03 for short and cold
soldering.

• Replace the IC03.

• Check the relay coil resistance.
(resistance : About 150Ω±20Ω)

• Replace the relay.

• Check the operation of the O.L.P,
and replace it if necessary.

• Check the compressor
resistance.(0Ω : short, ∞Ω : open)

Replace the compressor.

FRIEDRICH AIR CONDITIONING CO. 5-5

5-2-5 When the fan motor does not operated

1) Check points
(1) Is the voltage of the power source normal ? (the rating voltage ±10% range. )

(2) Is the electric wire in good contact ?(CN71, RY71)
(3) Is the starting condenser(FAN MOTOR) in good contact?
(4) Is the fan motor connector in good contact?(CN73)
(5) Is the output voltage of the IC01(KA7812) and IC02(KA7805) normal ?

Turn off the power, and then turn it on again five

seconds later.

Dose the buzzer sound, when the power on?

Y

Troubleshooting

N

Go to the clause "No power".

Check whether the "COOLING ICON" LED lamp is on

and the operation starts when pressing the

on/off button of the remocon.

Y

Is the IC03 output normal?

- When the fan motor is High, IC03 No. 12 pin → Low.

- When the fan motor is Med, IC03 NO. 14 pin → LOW.

- When the fan motor is Low, IC03 No. 15 pin →Low.

Y

Does the relay(RY 72, 73,74) operate normally?

- When the fan motor is High, RY74 should operate.

- When the fan motor is Med, RY73 should operate.

- When the fan motor is Low, RY72 should operate.

Y

Is the fan motor normal?

Y

Replace the fan motor.

N

N

N

N

• Go to the clause of "when the
remocon does not operated".

• Check the IC03 for a short and cold
soldering.

• Replace the IC03.

• Check the relay coil resistance.
(Normal: About 400Ω)

• Replace the relay.

• Check the fan motor resistance.
(0Ω : short, ∞Ω : open)

• Check the fan motor thermal fuse?

FRIEDRICH AIR CONDITIONING CO. 5-7

6. Exploded View and Parts List

6-1 Main unit

19

20

32

18

17

29-2

33

29

29-4

29-9

29-3

29-8

29-6

29-7

29-5

29-1

22

23

24

16

15

13

25

28

14

12

11

9

8

21

5

27

26

31

2

10

7

6

30

4

1-2

3

1-4

SP05A10

1-3

1-1

1

EXPLODED VIEW

FRIEDRICH AIR CONDITIONING CO. 6-1

Exploded View and Parts List

■Part List

No Description Code No. Specification

1 ASSY PANEL FRONT DB92-00393B ASSY,TOP,SEA 1

1-1 PANEL FRONT DB64-00680A HIPS,T2 1

1-2 BLADE V DB66-00367A HIPS,T2.0 4

1-3 LINK BLADE DB66-00368A PP,L82,T1.3 2

1-4 GRILLE AIR INLET DB64-00681B HIPS,T2 1

2 CASE CONTROL UP DB61-00933A SGCC-M,T0.7 1

3 FILTER DB63-00600A HIPS,T2.5 1

4 EVAPORATOR DB96-01972A 2R×10S,FP1.3 1

5 ASSY-PLATE EVAP CASING DB90-00898A ASSY 1

6 NUT-FRANGE DB60-30004A 2C M6 SM20C NTR 1

7 BLOWER DB67-00099A ABS,-,OK_TOP-P/J 1

8 ASSY-EVAP CASE UP DB90-00944A 25FO-PS 1

9 PLATE-PARTITION DB70-00219A ABS,-,T2.5 1

10 INSULATION-TUBE DB72-50178A T30,W36,L34,NBR 1

11 MOTOR DB31-00035K YGN50-6K 1

12 FAN-PROPELLER DB67-00014A ABS,290,OK-PJT 1

13 NUT-FRANGE DB60-30020A M6,LEFT 1

14 CASE COND DB61-00932A

15 ASSY-COND DB96-02044A 2R×15S,FP1.5 1

16 ASSY SHUTTER-LF DB92-00336A PVC,SC-94445R 1

17 ASSY CABINET DB90-00912A Y-PJT,TOP 1

18 SHUTTER-ANGLE UP DB64-00518A SECC-P,T1,W8 1

19 ASSY SHUTTER-RH DB92-00337A PVC,SC-94445R 1

20 TUBE DISCHARGE DB62-01349A C1220T-0 1

21 TUBE SUCTION DB62-01314A C1220T-0 1

22 COMPRESSOR 39A050HS1KA 115V 60Hz 1Ph 1

23 NUT-TERMINAL COVER DB60-30001A M5,-,SM20C 1

24 GASKET DB63-20003A EPDM,T0.8 1

25 COVER-TERMINAL DB63-10026A GE,-,NORYL,-,SEI-701 1

26 NUT WASHER DB60-30028A M8,ZPC 3

27 GROMMET-ISOLATOR DB73-00016A EPDM,-,BLK,OK-PJT 3

28 O.L.P DB35-00006F 1

29 ASSY CONTROL BOX DB93-01357G 5K,ELEC,A 1

29-1 SWITCH MEMBRANE DB34-00019F 76.8*114.5 1

29-2 CASE CONTROL-LOW DB61-00934A Y-PJT,SGCC-M,T0.7 1

29-3 CLIP-CAPACITOR DB65-00031A SGCC-M,T0.45 1

29-4 POWER CORD DB39-00343G 125V,15,AWG18 1

29-5 THERMISTOR DB32-10051D 10K/25,-,3425K 1

29-6 ASSY PCB MAIN DB93-00874U

29-7 PANEL CONTROL DB64-00571A ABS(V5),T2 1

29-8 C-OIL 2501-001290 3.5/35µF,270VAC 1

29-9 TRANSFORMER DB26-00006G

30 TUBE CAPILLARY DB62-01315A C1220T-H 1

31 ASSY BASE DB90-00897A MSWR10,M8,L10 1

32 ASSY-SCREW DB97-90014K OK-P/J 1

33 ASSY REMOCON DB93-01433F OK-PJT,ARC-724 1

复合 P,T2,W378,L308P

SEA 5K TOP,ELECTRONIC

AC115V,50/60HZ,DC17V

Q'TY

SP05A10

1

1

1

6-2 FRIEDRICH AIR CONDITIONING CO.

7. Block Diagram

PINCH PIPE

(SERVICE VALVE)

SUCTION LINE

ACCUMULATOR/COMPRESSOR

EVAPORATOR

CAPILLARY TUBE

CONDENSER

DISCHARGE LINE

PINCH PIPE

(SERVICE VALVE)

7-1 Refrigerating Cycle Block Diagram

7-2 Basic Structure

7-2-1 Micom Control Diagram

Room Temperature sensor

Receiving Unit of Remocon

(Remote Control)

Operation

Dry

Timer

Sleep

Fan speed (high)

Fan speed (med)

Fan speed (low)

Fan

Cool

Energy saver

Temp.setting(↑)
Temp.setting(↓)

MAIN MICOM

A/D converter

Led display control

Remocon Single

Receiving

• Compressor control

• Buzzer control

• Temperature control

• Fan motor control

Reset Circuit

Oscillation Circuit

Membrane Pad control

(Key operation)

• Energe saver

• Temp.set(

• Operation, Mode

• Swing, Sleep

• Fan select, Timer

• Remocon single contro

↑, ↓

)

(Remocon control)

l

Compressor

Fan motor

Power circuit (DC 5V)

Powercircuit (DC 12V)

Down Trans (AC15V)

Power input (AC220V)

FRIEDRICH AIR CONDITIONING CO. 7-1

Block Diagram

7-2-2 Micom pin assignment

KS88C4716

SEG-DATA(c)
SEG-DATA(b)

GRID4
GRID3

Vcc

Vss
10MHz RESONATOR
10MHz RESONATOR

TEST
GRID2
GRDI1

RESET IC OUTPUT

KEY-IN1
KEY-IN2

REMOCON

EEPROM CS

LOW FAN

COMPERSSOR

MIDDLE FAN

HIGH FAN

4-WAY VALVE

Vcc

1 P0.1 P4.4 44
2 P0.0 P0.2 43
3 P4.3 P0.3 42
4 P4.2 P0.4 41
5 VDD P0.5 40
6 VSS P0.6 39
7 Xout P0.7 38
8 Xin P1.0 37
9 TEST P1.1 36
10 P4.1 P1.2 35
11 P4.0 P1.3 34
12 RESET P1.4 33
13 P2.0 P1.5 32
14 P2.1 P3.7 31
15 P2.2 P3.6 30
16 P2.3 P3.5 29
17 P2.4 P3.4 28
18 P2.5 P3.3 27
19 P2.6 P3.2 26
20 P2.7 P3.1 25
21 P4.5 P3.0 24
22 AVref AVss 23

GRID5
SEG-DATA(d)
SEG-DATA(e)
SEG-DATA(f)
SEG-DATA(g)
SEG-DATA(h)
SEG-DATA(a)
EEPROM CLK
EEPROM IN
EEPROM OUT
BUZZER
OPTION
JIG OUTPUT
OPTION
SENSOR THERMIS­TOR(103AT)
OPTION
OPTION
OPTION
OPTION
SAVE OPTION
SWING MOTOR
GND

7-2 FRIEDRICH AIR CONDITIONING CO.

8. PCB DIGRAM

8-1 ASSY MAIN PCB

MAIN PCB:DB93-00874U

Front Side

Back Side

8-1

FRIEDRICH AIR CONDITIONING C0.

■Part List DB93-00874U
NO. DESCRIPTION SPECIFICATION Q'TY REMARK

1 DIODE BRIDGE DE06S 1 BD01

2 VARISTOR 10D 471 1 VA71

3 IC DRIVE ULN2003AD 2 IC04,IC06

4 IC KA7533OZ 1 IC03

5 IC-VOLT REGU KA7805 1 IC02

6 IC-VOLT REGU KA7812 1 IC01

7 SCREW TAPPING PH3*8 1 IC01

8 HEAT SINK L15 W15 H25 1 IC01

9 C-AL 2200uF 25V 1 C102

10 C-AL 1000uF 35V 1 C101

11 C-AL 100uF 10V 1 C103

12 C-AL 22uF 16V 1 C104

13 CONNECTOR WAFER FCZ254-08SL 1 CN91

14 CONNECTOR WAFER VH-4A,WHT 1 CN11

15 CONNECTOR WAFER TJC3-2A,RED 1 CN41

16 CONNECTOR WAFER TJC3-3A,RED 1 CN12

17 FUSE 250V 3015A 1 F701

18 FUSE HOLDER HF-004/J 2 F701

19 BUZZER PZ-227125 1 BZ61

20 R-CARBON 620 OHM 1/2W 1 R601

21 REMOCON MODULE FRP-4021H6 1 RM41

22 JUMPER WIRE PH0.6 7.5mm 17 JP3~JP10,JP12,JP14~JP18,JP21,JP24,JP25

23 JUMPER WIRE 2012 TYPE 2 JP11,JP22

24 JUMPER WIRE 3216 TYPE 5 JP1,JP2,JP19,JP20,JP23

25 PCB-MAIN FR-1 112*65*1.6mm 1 -

26 R-CHIP 180,3216,10% 8 R90~R908

27 R-CHIP 330,2012,5% 3 R402,R701,R703

28 R-METAL 10K,1/8W 1% 1 R404

29 R-METAL 6,8K,1/8W 1% 1 R401

30 R-CARBON 10K,2012,5% 4 R301,R403,R501,R502

31 R-CARBON 1K,2012,5% 2 R201,R202

32 R-METAL 5.4K,1/8W,1% 1 R406

33 C-CHIP 104Z,2012,50V 5 C105,C106,C401~C403

34 C-CHIP 223Z,2012,50V 3 C201,C501,C502

35 C-CHIP 101K,2012,50V 1 C701

36 C-CHIP 102K,2012,50V 3 C702,C901,C902

37 CHIP-TRANSISTOR KRA226S 3 Q901~Q903

38 CHIP-TRANSISTOR KRC246S 1 Q904

39 DIODE-SWITCHING 1N4148(SMALL) 5 D901~D905

40 IC-MCU STM0013-BA 1 IC05

41 RELAY-POWER D11U,12VDC 1 RY71

42 CERAMIC RESONATOR 10MHz 1 X301

43 LED DISPLAY D306GWA/S29 1 LED01

44 RELAY JQ1A12V 3 RY72~RY74

45 RELAY F3A 1 RY75

46 ASSY HARNESS EL2-06V 1 T1~T4

47 LED LAMP B5054D3,GREEN 2 LED02,LED03

48 R-CHIP 4,7K,2012,5% 1 R405

49 JUMPER WIRE PH0.6 15mm 1 JP13

PCB PARTS

8-2 FRIEDRICH AIR CONDITIONING CO.

9. Wiring Diagram

SENSOR

THERMISTOR

TRANSFORMER

MEMBRANE
PAD

1
2

131

1
2
3
4

CN41

1
2

CN12

3

CN11

1
2
3
4

CN91

1
2
3
4
5
6
7
8

RECTIFIER CIRCUIT

RED

+5V

+12V

RY72

RY73

T4 T3 T2

YEL

ORG

LED DISPLAY

LED LAMP

BUZZER

REMOCON

MODULE

RY74

F701

250V AC

3.15A

RY71

GRN

P/GRAY

(LIVE)

P/GRAY

(NEUTRAL)

(RIB)

FAN

MOTOR

M1

S

M

B

W

W

L

H

H

K

T

T

WHT

W
H

CAPACITOR

T

BLK

RED

DIAGRAM

COMP­RESSOR

S

C

R

RED

WHT

WHT

RED

BLK

BLK

H

M

L

Y

R

O

E

E

R

L

D

G

CAPACITOR

O.L.P

SP05A10

FRIEDRICH AIR CONDITIONING CO. 9-1

10 Schematic Diagrams

10-1 MAIN PCB

FRIEDRICH AIR CONDITIONING CO.
Post Office Box 1540 l San Antonio, Texas 78295-1540
4200 N. Pan Am Expressway l San Antonio, Texas 78218-5212
[phone] l FAX [phone]
www

.friedrich.com

Printed in China