Friedrich SV08 User Manual

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Room Air Conditioner

Service and Parts

Manual

 

 

 

Off

 

 

 

 

Med

 

High

 

 

 

Fan

 

Cool

 

 

 

Low

 

Med

 

Temperature

 

Fan

 

Cool

Mode

Warmer

Cooler

Low Cool

 

Slider Casement

115Volts SV08A10ASV10A10ASV12A10A

SV08 / SV10 / SV12 (01/05)

CONTENTS

1. PREFACE

 

1.1 SAFETY PRECAUTIONS................................

2

1.2 INSULATION RESISTANCE TEST .................

2

1.3 SPECIFICATIONS...........................................

3

1.4 FEATURES......................................................

4

1.5 CONTROL LOCATIONS .................................

4

2. DISASSEMBLY INSTRUCTIONS

 

2.1 MECHANICAL PARTS ....................................

5

2.1.1 FRONT GRILLE .....................................

5

2.1.2 CABINET ................................................

5

2.1.3 CONTROL BOX .....................................

5

2.2 AIR HANDLING PARTS ..................................

6

2.2.1 AIR GUIDE AND TURBO FAN...............

6

2.2.2 FAN ........................................................

6

2.2.3 SHROUD ................................................

7

2.3 ELECTRICAL PARTS......................................

7

2.3.1 OVERLOAD PROTECTOR ....................

7

2.3.2 COMPRESSOR......................................

7

2.3.3 CAPACITOR...........................................

8

2.3.4 POWER CORD ......................................

8

2.3.5 THERMOSTAT.......................................

8

2.3.6 ROTARY SWITCH .................................

8

2.3.7 MOTOR ..................................................

9

2.4 REFRIGERATION CYCLE ..............................

9

2.4.1 CONDENSER.........................................

9

2.4.2 EVAPORATOR.......................................

9

2.4.3 CAPILLARY TUBE ...............................

10

3. INSTALLATION

 

3.1 HOW TO INSTALL THE UNIT.......................

12

3.2 CHECKING INSTALLATION .........................

12

3.3 HOW TO DRAIN............................................

12

3.4 WINDOW REQUIREMENTS .........................

13

3.5 INSTALLATION KITS CONTENTS ...............

13

3.6 HORIZONTAL SLIDING WINDOW INSTALLATION .....

14

3.7 CASEMENT WINDOW INSTALLATION .......

15

4. TROUBLESHOOTING GUIDE

 

4.1 OUTSIDE DIMENSIONS ...............................

16

4.2 PIPING SYSTEM...........................................

16

4.3 TROUBLESHOOTING GUIDE ......................

17

5. SCHEMATIC DIAGRAM

 

5.1 CIRCUIT DIAGRAM ......................................

21

5.2 CIRCUIT DIAGRAM ......................................

22

6. EXPLODED VIEW ..................................

23

7. REPLACEMENT PARTS LIST........

24

1. PREFACE

This SERVICE MANUAL provides various service information, including the mechanical and electrical parts etc. This room air conditioner was manufactured and assembled under a strict quality control system. The refrigerant is charged at the factory. Be sure to read the safety precautions prior to servicing the unit.

1.1 SAFETY PRECAUTIONS

1.When servicing the unit, set the ROTARY SWITCH or POWER SWITCH to OFF and unplug the power cord.

2.Observe the original wire insulation.

If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit.

3.After servicing the unit, make an insulation resistance test to protect the customer from being exposed to shock hazards.

—2—

1.2 INSULATION RESISTANCE TEST

1.Unplug the power cord and connect a jumper between 2 pins (black and white).

2.The grounding conductor (green) is to be open.

3.Measure the resistance value with an ohm meter between the jumpered lead and each exposed metallic part on the equipment at all the positions (except OFF) of the ROTARY SWITCH.

4.The value should be over 1MΩ .

1.3 SPECIFICATIONS

1.3.1 FOR SV08A10A / SV10A10A / SV12A10A

 

 

 

MODELS

SV08A10A

 

SV10A10A

 

SV12A10A

ITEMS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

POWER SUPPLY

 

 

 

 

 

1Ø115V, 60Hz

 

 

 

 

 

 

 

 

 

 

COOLING CAPACITY

(Btu/h)

8,000

 

10,000

 

12,000

 

 

 

 

 

 

 

 

 

 

INPUT

 

 

(W)

840

 

 

1,050

 

1,260

 

 

 

 

 

 

 

 

 

 

RUNNING CURRENT

(A)

7.7

 

 

9.6

 

11.5

 

 

 

 

 

 

 

 

 

 

E.E.R

 

 

(BTU/W.h)

 

 

 

9.5

 

 

OPERATING

 

INDOOR (°C)

 

26.7(DB)*

19.4(WB)**

 

CONDITION

 

 

 

 

 

 

 

 

 

 

OUTDOOR (°C)

 

35(DB)*

23.9(WB)**

 

 

 

 

 

 

 

 

 

 

REFRIGERANT (R-22)CHARGE

460g(16.2 oz)

 

520g(18.3 oz)

 

615g(21.7 oz)

 

 

 

 

 

 

 

 

EVAPORATOR

 

 

 

2 ROW 16 STACKS, SLIT FIN TYPE

 

3 ROW 16 STACKS, SLIT FIN TYPE

 

 

 

 

 

 

 

 

 

CONDENSER

 

 

 

2 ROW 23 STACKS,

 

 

3 ROW 23 STACKS,

 

 

 

LOUVER FIN TYPE

 

 

LOUVER FIN TYPE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FAN, INDOOR

 

 

 

 

 

TURBO FAN

 

 

 

 

 

 

 

 

 

 

FAN, OUTDOOR

 

 

 

 

 

AXIAL FAN

 

 

 

 

 

 

 

 

 

 

 

FAN SPEEDS, FAN/COOLING

 

 

 

2/3

 

 

 

 

 

 

 

 

 

 

 

FAN MOTOR

 

 

 

 

 

6 POLES

 

 

 

 

 

 

 

 

 

 

OPERATION CONTROL

 

 

 

ROTARY SWITCH

 

 

 

 

 

 

 

 

 

 

ROOM TEMP. CONTROL

 

 

 

THERMOSTAT

 

 

 

 

 

 

 

 

AIR DIRECTION CONTROL

VERTICAL LOUVER (RIGHT & LEFT)

 

 

 

 

 

 

HORIZONTAL LOUVER (UP & DOWN)

 

 

 

 

 

 

 

 

 

 

 

 

 

CONSTRUCTION

 

 

 

 

 

TOP-DOWNCHASSIS

 

 

 

 

 

 

 

 

 

 

PROTECTOR

 

COMPRESSOR

 

OVERLOAD PROTECTOR

 

 

 

 

 

 

 

 

 

 

 

FAN MOTOR

INTERNAL THERMAL PROTECTOR

 

 

 

 

 

 

 

 

 

 

POWER CORD

 

 

 

3 WIRE WITH GROUNDING

 

 

 

 

 

 

 

 

 

 

 

 

 

ATTACHMENT PLUG (CORD-CONNECTEDTYPE)

 

 

 

 

 

 

 

 

 

 

 

DRAIN SYSTEM

 

 

 

DRAIN PIPE SPLASHED BY FAN SLINGER

 

 

 

 

 

 

 

 

 

 

NET WEIGHT

 

 

(lbs/kg)

66/30

 

 

77/35

 

79/36

 

 

 

 

 

 

 

 

 

OUTSIDE DIMENSION

(inch)

 

 

141/2 x 201/2 x 233/5

 

 

 

 

 

 

 

 

 

 

(W x H x D)

 

 

(mm)

 

 

368 x 521 x 607

 

 

 

 

 

 

 

 

 

 

 

* DB:Dry Bulb **WB:Wet Bulb

—3—

1.4 FEATURES

Designed for COOLING ONLY.

Powerful and whispering cooling.

Simple installation and service.

Low air-intake,topcooled-airdischarge.

Built-inadjustable THERMOSTAT

Washable one-touchfilter

Compact size

Reliable and efficient rotary compressor is equipped.

1.5 CONTROL LOCATIONS

1.5.1 COOLING ONLY MODEL

• VENTILATION

The ventilation lever must be in the CLOSE position in order to maintain the best cooling conditions. When fresh air is necessary in the room, set the ventilation lever OPEN position.

The damper is opened and room air is exhausted.

• TEMPERATURE

Thermostat will automatically control the temperature of the room. Select a higher grade for a cooler temperature in the room. The temperature is selected by moving the knob to the desired position.

• MODE

- Turns air conditioner off.

- Med speed fan operation without cooling.

- Low speed fan operation without cooling.

- Cooling with high speed fan operation.

- Cooling with med speed fan operation.

- Cooling with low speed fan operation.

CLOSEVENTOPEN

 

 

 

Off

 

 

 

Med

High

 

 

 

Fan

Cool

 

 

 

Low

Med

 

Temperature

Warmer

Fan

Cool

Mode

Cooler

Low Cool

 

 

 

 

NOTE!

Before using the air conditioner secure the front grille with two screws enclosed with the owner’s manual.

1. Open the inlet grille downward and remove the air filter.

2. Fasten the front grille with screws.

3. Reinstall the air filter.

4. Close the inlet grille.

Inlet Grille

—4—

2. DISASSEMBLY INSTRUCTIONS

— Before the following disassembly, set POWER SWITCH to OFF and disconnect the power cord.

2.1 MECHANICAL PARTS

2.1.1 FRONT GRILLE

1.Open the inlet grille downward and remove the air filter.

2.Remove the screws which fasten the front grille.(See Figure 1)

3.Pull the front grille from the right side.

4.Remove the front grille.(There are 4 hooks.)

5.Re-installthe components by referring to the removal procedure, above.

2.1.2 CABINET

1.After disassembling the FRONT GRILLE, remove the 6 screws which fasten the cabinet at both sides.(See Figure 2)

2.Remove the 4 screws which fasten the cabinet at back.

3.Remove the cabinet.

4.Re-installthe components by referring to the removal procedure, above.

2.1.3 CONTROL BOX

1.Remove the front grille. (Refer to section 2.1.1)

2.Remove the cabinet. (Refer to section 2.1.2)

3.Remove the 1 screw which fasten the power cord. (See Figure 3)

4.Disconnect the grounding screw from the evaporator channel.

5.Remove the 2 screws which fasten the control box.(See Figure 3)

6.Remove the housing which connects motor wire in the control box.

7.Remove three leads which connect compressor.

8.Discharge the capacitor by placing a 20,000 ohm resistor across the capacitor terminals.

9.Raise the control box upward completely.

10.Re-installthe components by referring to the removal procedure, above.

(Refer to the circuit diagram found on pages 21~22 in this manual and on the control box.)

Inlet Grille

Figure 1

Figure 2

Figure 3

— 5—

2.2 AIR HANDLING PARTS

2.2.1 AIR GUIDE AND TURBO FAN

1.Remove the front grille. (Refer to section 2.1.1)

2.Remove the cabinet. (Refer to section 2.1.2)

3.Remove the control box. (Refer to section 2.1.3)

4.Remove the 4 screws which fasten the brace.

5.Remove the brace.

6.Remove the 2 screws which fasten the upper air guide. (See Figure 4)

7.Remove the upper air guide.

8.Remove the 2 screws which fasten the evaporator.

9.Move the evaporator forward while pulling it upward slightly. (See Figure 5)

10.Remove orifice by pulling two taps.

11.Remove the clamp with a hand plier which secures the turbo fan.

12.Remove the turbo fan. (See Figure 6)

13.Remove the motor. (Refer to section 2.3.7)

14.Remove the 2 screws which fastens the lower air guide from the base pan.

15.Remove the 2 screws which fasten the motor mount from the base pan.

16.Remove the 2 screws which fasten the lower air guide and motor mount.

17.Move the lower air guide backward and pull out from the base pan. (Move the lower air guide carefully.)

18.Re-installthe components by referring to the removal procedure, above.

Figure 4

Figure 5

2.2.2 FAN

1.Remove the cabinet. (Refer to section 2.1.2)

2.Remove the brace (Refer to section 2.2.1)

3.Remove 6 screws which fasten the condenser.

4.Move the condenser to the right carefully.

5.Remove the clamp which secures the fan with a pair of hand pliers.

6.Remove the fan. (See Figure 7)

7.Re-installby referring to the removal procedure.

— 6—

Figure 6

Figure 7

2.2.3 SHROUD

1.Remove the fan. (Refer to section 2.2.2)

2.Remove the shroud. (See Figure 8)

3.Re-installthe components by referring to the removal procedure, above.

2.3 ELECTRICAL PARTS

2.3.1 OVERLOAD PROTECTOR

1.Remove the cabinet. (Refer to section 2.1.2)

2.Remove the nut which fastens the terminal cover.

3.Remove the terminal cover. (See Figure 9)

4.Remove all the leads from the overload protector.

5.Remove the overload protector.

6.Re-installthe components by referring to the removal procedure, above.

2.3.2 COMPRESSOR

1.Remove the cabinet. (Refer to section 2.1.2)

2.Discharge the refrigerant system using a FreonTM Recovery System.

If there is no valve to attach the recovery system to install one (such as a WATCO A-1)before venting the FreonTM. Leave the valve in place after servicing the system.

3.Remove the overload protector. (Refer to section 2.3.1)

4.After purging the unit completely, unbraze the suction and discharge tubes at the compressor connections.

5.Remove the 3 nuts and the 3 washers which fasten the compressor to the base pan.

6.Remove the compressor. (See Figure 10)

7.Re-installthe components by referring to the removal procedure, above.

Figure 8

Figure 9

Figure 10

— 7—

2.3.3 CAPACITOR

1.Remove the cabinet. (Refer to section 2.1.2)

2.Remove the screw and the clamp which fasten the capacitor.

3.Disconnect all the leads of capacitor terminals.

4.Re-installthe components by referring to the removal procedure, above. (See Figure 11)

2.3.4 POWER CORD

1.Remove the cabinet. (Refer to section 2.1.2)

2.Disconnect the grounding screw from the control box.

3.Disconnect the 2 receptacles.

4.Remove a screw which fastens the cord clip. (See Figure 12)

5.Remove the power cord.

6.Re-installthe component by referring to the removal procedure, above.

(Use only one ground-markedhole

for ground

connection.)

 

7.If the supply cord of this appliance is damaged, it must be replaced by the same cord that can be obtained from an authorized parts dealer.

2.3.5 THERMOSTAT

1.Remove the cabinet. (Refer to section 2.1.2)

2.Remove the 2 screws which fasten the thermostat.

3.Disconnect 2 leads of thermostat terminals.

4.Remove the thermostat.

5.Re-installthe components by referring to the above removal procedure. (See Figure 13)

Tem

 

 

 

 

perat

 

 

 

 

ure

Med

 

 

 

Warmer

 

 

 

Fan

Off

 

Cooler

 

 

 

High

 

Low

 

 

Cool

 

Fan

 

 

 

 

 

Low

Cool

Med

 

 

 

 

 

 

 

Cool

Mode

Figure 11

Figure 12

Figure 13

2.3.6 ROTARY SWITCH

1. Remove the cabinet. (Refer to section 2.1.2)

2. Remove the 2 screws which fasten the rotary switch.

3. Disconnect all the leads of the rotary switch terminals.

4. Remove the rotary switch.

5. Re-installthe components by referring to the above removal procedure. (See Figure 14)

Figure 14

— 8—

2.3.7 MOTOR

1.Remove the cabinet. (Refer to section 2.1.2)

2.Remove the turbo fan. (Refer to section 2.2.1)

3.Remove the fan. (Refer to section 2.2.2)

4.Remove the 4 screws which fasten the motor from the Motor Mount. (See Figure 15)

5.Remove the motor.

6.Re-installthe components by referring to the removal procedure, above.(See Figure 15)

2.4 REFRIGERATING CYCLE

2.4.1 CONDENSER

CAUTION

system using a System.

to attach the recovery one (such as a WATCO A-1)

FreonTM. Leave the valve in the system.

1.Remove the cabinet. (Refer to section 2.1.2)

2.Remove the 4 screws which fasten the brace.

3.Remove the 4 screws which fasten the condenser and shroud. (See Figure 16)

4.Remove the 2 screws which fasten the condenser and base pan.

5.After discharging the refrigerant completely, unbraze the interconnecting tube at the condenser connections.

6.Remove the condenser.

7.Re-installthe components by referring to notes on p10. (See Figure 16)

Figure 15

Figure 16

2.4.2 EVAPORATOR

1.Remove the cabinet. (Refer to section 2.1.2)

2.Remove the control box.(Refer to section 2.1.3)

3.Remove the upper air guide. (Refer to section 2.2.1)

4.Remove the 2 screws which fasten the evaporator to the lower air guide.

5.Carefully move the evaporator sideways. (Refer to section 2.2.1)

6.After discharging the refrigerant completely, unbraze the interconnecting tube at the evaporator connections.

7.Remove the evaporator.

8.Re-installthe components by referring to notes on page 10. (See Figure 17)

Figure 17

— 9—

2.4.3 CAPILLARY TUBE

1.Remove the cabinet. (Refer to section 2.1.2)

2.After discharging the refrigerant completely, unbraze the interconnecting tube at the capillary

tube

previous page)

3.Remove the capillary tube.

4.Re-installthe components by referring to notes on page 11.

 

 

NOTES

 

 

 

 

 

 

refrigerant.

1.

When

refrigerant, be sure to

 

 

 

system using a FreonTM

 

 

recovery

 

 

 

If

attach the recovery system

 

 

to,

as a WATCO A-1)before

 

 

venting

. Leave the valve in place after

 

 

 

.

2.

After

unit completely, remove the

 

 

desired

and unbraze the pinch-off

 

 

tubes

 

3.

Solder

into the pinch-offtube ports,

 

 

leaving

.

4.

Solder

tubes with Service valves.

5.

 

.

 

 

1)

pump, as illustrated figure

 

 

2)

pump and slowly open

 

 

 

and B with two full turns

 

 

counterclockwise and leave the valves open.

 

 

 

is now pulling through valves

 

 

A

C by means of the manifold

 

 

 

.

CAUTION

If high vacuum equipment is used, adjust valves A and B so they are opened only slightly for a few minutes, then open slowly with the two full turns counterclockwise. This will keep oil from foaming and being drawn into the vacuum pump.

3)Operate the vacuum pump for 20 to 30 minutes, until 600 microns of vaccum is obtained. Close valves A and B, and observe vacuum gauge for a few minutes. A rise in pressure would

indicate a possible leak or moisture remaining in the system. With valves A and B closed, stop the vacuum pump.

4)Remove the hose from the vacuum pump and place it on the charging cylinder. See figure 18B, on page 11.

Open valve C.

Discharge the line at the manifold connection.

5)The system is now ready for final charging.

6.Recharge as follows :

1)Refrigeration cycle systems are charged from the High-side.If the total charge cannot be put in theHigh-side,the balance will be put in the suction line through the access valve which you installed as the system was opened.

2)Connect the charging cylinder as shown in figure 18B, on page 11.

With valve C open, discharge the hose at the manifold connection.

3)Open valve A and allow the proper charge to enter the system. Valve B must remain closed.

4)If more charge is required, the high-sidewill not take it. Close valve A.

5)With the unit running, open valve B and add the balance of the charge.

a.Do not add the liquid refrigerant to the Lowside.

b.Watch the Low-sidegauge; allow pressure to rise to 30 lbs.

c.Turn off valve B and allow pressure to drop.

d.Repeat steps b. and c. until the balance of the is in the system.

6)When satisfied that the unit is operating correctly, use the pinch-offtool with the unit still running and clamp on to thepinch-offtube. Using a tube cutter, cut thepinch-offtube about 2" from the top of thepinch-offtool. Usesil-fossolder and solderpinch-offtube closed. Turn off the unit, allow it to set for a while, and then test the leakage of thepinch-offconnection.

— 10—