Friedrich D525 User Manual

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Service & Parts Manual

Dehumidifier

Models D25D, D50D, D70D

 

Important points on service, and Flow chart

 

 

for inspecting and repairing the unit ...............

1

 

Troubleshooting .............................................

2

 

Appearance and Control panel ........................

3

 

Technical specifications ..............................

4-6

 

Refrigerator system diagram ..........................

7

 

Schematic wiring diagram ..............................

8

 

Exploded view and Parts Lists ...................

9-12

Dehumidifier-2010Svc Parts(4-2010)

Warranty .......................................................

13

IMPORTANT POINTS ON SERVICE OPERATING SAFETY

Please follow these instructions carefully :

Unplug the unit to avoid any danger from electric shock before disassembling the unit for repair.

If there is any sound of the refrigerant circulating when in operation, avoid touching the cooling coils.

If you need to perform any welding or soldering, be sure you are in a well ventilated area.

Only a qualified professional should perform any welding on the unit.

When repairing the unit, the specifications listed in this manual must be strictly adhered to when replacing any components.

When replacing any electrical components they should be factory approved units.

Be sure that any electrical components are properly wired and in place.

FLOW CHART FOR INSPECTING AND REPAIRING THE UNIT

Electricity shutdown

Check fuses on main switch

Check if air filter is clogged

Capacitors are faulty

Dehumidifier doesn't work

Can not dehumidify

Compressor doesn't work

Refrigerant is leaking

Maintain

&

repair system

Check if drain bucket water level switch is broken

Humidity sensor is broken

Humidity setting on continuous operation

Over load protector is faulty

Supply Nitrogen 15Kg/cm² from low pressure side and locate the leakage

Use oxygen acetylene and 5% silver iron to fill cracks and holes

Pump vacuum for at least 15 minutes

After filling with refrigerant proceed to test run

- 1 -

TROUBLESHOOTING

Problem

Dehumidifier doesn't work

Fan doesn't work

Compressor doesn't work

Can not dehumidify or the dehumidifcation volume is too low

Loud noise and vibration

Evaporator is frosted

Dehumidification water overflows

Possible causes

Electricity shutdown or low voltage

Bad plug or wire is broken

Motor is broken

Low voltage

Still under the 3 min protection

Compressor is broken

Filter is dirty

Refrigerant is leaking

Low temp and humidity

Uneven floor

Motor or compressor is loose

Sound of flowing water

Solution

Wait for electricity to be restored

Repair or replace

Repair or replace

Call the local electricity company

Wait until if goes back to function after 3 min

Repair or replace

Clean filter

Detect the leakage and fill with refrigerant

Normal

Move to level place or use blocks

Tighten screws

Normal, it is the sound when the refrigerant is flowing

Filter is too dirty

Clean filter

Environment temp is too low

Stop use temporarily

Drain bucket is broken

Repair or replace

Micro switch is broken

Repair or replace

- 2 -

APPEARANCE

CONTROL PANEL

AIR FILTER

OUTLET FOR

MOIST AIR

 

DEHUMIDIFIED

INTAKE

 

DRY AIR

HANDLE

CONTINUOUS

DRAINAGE HOLE

DRAIN BUCKET

ROLL CASTORS

Electricity cable

CONTROL PANEL

BUCKET FULL LAMP

Water tank is full,and lamp lights.

DEFROST LAMP

When low temperature, unit gets into defrosting mode and lamp lights.

CURRENT TEMP / TIMER SET DISPLAY

When machine is running, it displays the current temperature. Press

the "Timer" button to set the machine to shut off automatically after a

specified amount of time. 10 seconds after displaying the timer, the

display will change back to current temperature.

FAN SPEED

High / Low

POWER

On / Off

TIMERS

When unit operates, press "TIMER" set hours unit will off after set hours.

When unit stand-by,press

"TIMER" set hours unit will on after set hours.

Setting timer from 1~24 hours. To cancel the timer, proceed as above but set the "timer off" to zero hours.

SET HUMIDITY / CURRENT HUMIDITY DISPLAY

When machine is running, it displays the current humidity. Press "" or "" to select humidity setting. The humidity is adjusted in an increment of 5% by each pressing of "" or "". Adjustable range is within 30%RH to 90%RH. 10seconds after setting humidity, the display will change back to the current humidity.

Press the / switch buttons, it will switch at sequence of

and .

- 3 -

TECHNICAL SPECIFICATIONS

ITEM

UNIT

D25D

 

 

 

 

DEHUMIDIFYING CAPACITY

Pint/day

25 (at 80°F , 60%RH)

 

 

 

 

OUTER DIMENSION

Inches

13.46(W) * 21.46(H) * 9.84(D)

 

 

 

 

RATED VOLTAGE

V/Hz

115 / 60

 

 

 

 

RUNNING CURRENT

A

4.6

 

 

 

 

WIRE SPECIFICATION

 

10A 125V 18AWG*3C

 

 

 

 

 

 

 

 

 

MODEL

 

35D042-A2-ABDA

 

INPUT

W

300

 

POWER

COMPRESSOR

OPERATING

uF/V

35/300

CYCLE

 

PROTECTOR

 

MRA12228-12095

 

 

 

 

 

MODEL

 

LS-16T2-04

 

INPUT

W

47

FAN MOTOR

POWER

OPERATING

uF/V

5/250

 

 

CYCLE

 

 

 

 

CAPILLARY

Inches

0.086(O.D.)*0.047(I.D.)*19.685(L)

EVAPORATOR

 

1R10S21FPI

 

 

 

CONDENSER

 

2R10S21FPI

 

 

 

 

REFRIGERANT

R410A/oz

5.28

 

 

 

WEIGHT

Lbs

32

 

 

 

WATER TANK CAPACITY

Pint

11

 

 

 

 

 

 

 

 

 

 

 

 

- 4 -

TECHNICAL SPECIFICATIONS

ITEM

 

UNIT

D50D

 

 

 

 

 

DEHUMIDIFYING CAPACITY

Pint/day

50 (at 80°F , 60%RH)

 

 

 

 

 

OUTER DIMENSION

Inches

14.96(W) * 23.43(H) * 12.01(D)

 

 

 

 

 

RATED VOLTAGE

V/Hz

115 / 60

 

 

 

 

 

 

RUNNING CURRENT

A

5.9

 

 

 

 

 

 

WIRE SPECIFICATION

 

10A 125V 18AWG*3C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MODEL

 

35D052-A2-ABLL

 

 

OPERATING

uF/V

40/300

 

 

 

CYCLE

 

 

 

 

 

COMPRESSOR

 

PROTECTOR

 

MRA12274-12095

 

 

 

 

 

 

 

 

 

 

 

 

 

MODEL

 

LS-16T2-02-N2

 

 

INPUT

W

47

 

FAN MOTOR

 

POWER

 

 

 

OPERATING

uF/V

6/250

 

 

 

CYCLE

 

CAPILLARY

 

Inches

0.086(O.D.)*0.047(I.D.)*39.37(L)

EVAPORATOR

 

2R12S21FPI

 

 

 

CONDENSER

 

2R12S21FPI

 

 

 

 

 

REFRIGERANT

R410A/oz

9.32

 

 

 

 

 

 

WEIGHT

 

Lbs

44

 

 

 

 

 

WATER TANK CAPACITY

Pint

16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

- 5 -

TECHNICAL SPECIFICATIONS

ITEM

UNIT

D70D

 

 

 

 

 

DEHUMIDIFYING CAPACITY

Pint/day

70 (at 80°F , 60%RH)

 

 

 

 

 

OUTER DIMENSION

Inches

14.96(W) * 23.43(H) * 12.01(D)

 

 

 

 

 

RATED VOLTAGE

V/Hz

115 / 60

 

 

 

 

 

 

RUNNING CURRENT

A

7.7

 

 

 

 

 

 

WIRE SPECIFICATION

 

10A 125V 18AWG*3C

 

 

 

 

 

 

 

 

 

 

 

MODEL

 

41T068-A2-AMLI

 

OPERATING

uF/V

40/300

 

COMPRESSOR

CYCLE

 

 

 

PROTECTOR

A

MRA12272-12082

 

 

 

 

 

 

 

 

 

 

 

MODEL

 

LS-16T2-06

 

INPUT

W

47

 

FAN MOTOR

POWER

 

OPERATING

uF/V

6/250

 

 

 

 

CYCLE

 

CAPILLARY

Inches

0.086(O.D.)*0.047(I.D.)*31.50(L)

EVAPORATOR

 

2R12S21FPI

 

 

 

CONDENSER

 

2R12S21FPI

 

 

 

 

 

REFRIGERANT

R410A/oz

12.03

 

 

 

 

 

WEIGHT

Lbs

44

 

 

 

 

 

WATER TANK CAPACITY

Pint

16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

- 6 -

REFRIGERATOR SYSTEM DIAGRAM

CAPILLARY TUBE

DRYER

PTC(HEATER)

EVAPORATOR

 

CONDENSER

FAN MOTOR

COMPRESSOR ASS'Y

- 7 -

SCHEMATIC WIRING DIAGRAM

D25D

SCHEMATIC WIRING DIAGRAM

115V~60Hz

 

CAPACITOR

WHITE

 

O LP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L

 

N

 

BLUE

 

 

RED

 

 

 

 

YELLOW

 

 

COMPRESSOR

 

 

 

 

RED

 

BLACK

 

WHITE

 

E

T3.15AL 250V

 

 

FAN-L

 

FAN-H

F/MOTOR

 

 

S

 

NO

 

P6

P7

 

E

 

U

 

 

 

 

 

 

 

 

F

 

 

 

 

 

 

 

BLUE

CN 1

COM.

 

 

 

 

WHITE

BLACK

 

N

 

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CN

 

 

 

 

 

 

 

 

N

 

 

 

 

 

 

CAPACITOR

 

 

 

 

N

 

 

CN 4

CN 8

CN 7 CN 3

 

 

 

 

2

 

 

 

 

 

 

 

 

CN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CN 1

CN 2

 

 

 

 

 

 

 

 

 

 

 

 

 

H.sensor

T.sensor

MICRO

 

 

 

 

TRANSFORMER

 

CONTROL BOARD

SWITCH

 

 

 

 

 

 

 

 

 

 

 

 

 

BLUE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D6951-870

SCHEMATIC WIRING DIAGRAM

D50D, D70D

SCHEMATIC WIRING DIAGRAM

115V~60Hz

 

 

WHITE

 

 

O L P

 

BROWN

 

 

 

 

 

CAPACITOR

 

 

 

 

 

 

 

 

 

 

BLUE

 

 

 

RED

 

 

YELLOW

 

L

 

N

 

COMPRESSOR

 

 

RED

 

 

BLUE

 

 

 

 

 

 

 

BLACK

 

WHITE

 

 

 

 

FAN-L

 

FAN-H

 

 

 

SE

T3.15AL 125V

 

NO

P6

P7

 

F/MOTOR

E

 

 

 

 

 

 

 

 

 

 

 

CN 1

U

COM.

 

 

 

 

F

CN 6

WHITE

BLUE

 

 

 

 

N

 

 

 

 

 

 

 

BLUE

 

 

 

 

 

 

 

 

 

 

 

 

N1

 

 

 

 

 

 

CAPACITOR

 

 

 

 

N2

 

 

 

 

CN 8

CN 7

 

 

 

 

2

 

 

CN 4

CN 3

 

 

 

 

 

CN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CN 1

CN 2

 

MICRO

 

 

 

 

 

 

 

 

SWITCH

 

 

 

 

TRANSFORMER

 

CONTROL BOARD

H.sensor

T.sensor

 

 

 

 

 

 

 

 

 

 

 

BLUE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D6951-900

 

 

 

 

 

 

 

- 8 -

 

 

 

 

EXPLODED VIEW

D25D

33

40

42

46

 

41

 

37

45

 

 

 

27

 

 

51

 

 

44

 

 

 

38

43

 

 

 

 

 

 

 

 

 

39

 

 

 

 

 

 

36

 

 

48

 

 

 

 

 

35

 

 

49

 

 

 

 

 

34

 

21

47

 

 

 

20

 

 

30

 

 

 

 

 

50

 

29

 

19

 

 

 

 

 

 

28

 

18

 

 

 

 

 

 

32

 

9

 

 

 

 

 

 

31

17

10

 

 

 

 

8

 

26

16

 

 

 

 

 

 

25

 

15

 

 

 

 

 

7

 

 

 

 

24

 

14

 

6

23

 

12

 

 

22

 

 

5

 

 

 

 

 

 

1

 

 

11

 

 

 

 

 

 

 

13

3

 

 

 

 

4

2

 

 

 

 

- 9 -