Daikin R71KV1 Manual de usuario

REMOVAL

PROCEDURE

SERVICE MANUAL

Outdoor Unit

Non-Inverter

Multi Type

3 HP Class

Si211311E

Service Manual

Removal Procedure

Outdoor Unit

Applicable Models

zCooling Only

R71KV1

R71KY1

R71KVAL

zHeat Pump

RY71KV1

RY71KY1

Si211311E

Removal Procedure 1

Table of Contents

1. Procedure to Remove External Casing...................................................2

2. Procedure to Remove Outdoor Unit Fan and Fan Motor ........................3

3. Procedure to Remove Outdoor Unit PCB ...............................................5

4. Procedure to Remove Electrical Parts Box .............................................6

5. Procedure to Remove Electronic Expansion Valve and

Solenoid Valve ........................................................................................8

6. Procedure to Remove Four Way Valve and Coil ....................................9

7. Procedure to Remove Compressor.......................................................10

Procedure to Remove External Casing Si211311E

2Removal Procedure

1. Procedure to Remove External Casing

Procedure Warning Be sure to wait for 10 minutes or more after turning off all power

supplies before disassembling work.

Step Procedure Points

1Remove the 8 top plate

screws.

2Remove the screw of

the front piping cover.

3Remove the screw of

the front casing and

remove by pushing

downward.

4Remove the 4 screws

of the side piping cover.

5Remove the 5 screws

of the rear/side casing.

Side piping

cover

Front piping

cover

Si211311E Procedure to Remove Outdoor Unit Fan and Fan Motor

Removal Procedure 3

2. Procedure to Remove Outdoor Unit Fan and Fan

Motor

Procedure Warning Be sure to wait for 10 minutes or more after turning off all power

supplies before disassembling work.

Step Procedure Points

∗Remove the front piping

cover, etc., according to the

procedure for removing the

external casing.

1Remove the 4 screws

and disconnect the 8

tabs fastening the air

discharge grille on the

top/bottom and left/

right, and remove the

air discharge grille.

2Remove the fan clamp

fastening the propeller

fan; remove the nut and

washer.

Note:

The fan motor’s lead wire

cannot be disconnected as is.

You must first remove the screw

on the right side of the front

casing (1).

3Disconnect the motor

connector from the

PCB’s wiring connector,

and remove the

condenser.

Connector Condenser

Procedure to Remove Outdoor Unit Fan and Fan Motor Si211311E

4Removal Procedure

4Locate the 2 clamps

holding the fan motor

lead wire in place.

∗4 clamps in RY100 to

140K.

Caution during motor installation

Be sure to secure the motor

lead wire with the clamp. Loose

lead wire can be caught by fan

and damaged.

5Remove the 4 hexagon

bolts fastening the fan

motor, and remove the

fan motor.

6The motor base can be

dismounted by

removing the 4

hexagon bolts.

Step Procedure Points

Secured by tie-band

Clamped by claw

on divider plate

Lead wire Propeller fan

Si211311E Procedure to Remove Outdoor Unit PCB

Removal Procedure 5

3. Procedure to Remove Outdoor Unit PCB

Procedure Warning Be sure to wait for 10 minutes or more after turning off all power

supplies before disassembling work.

Step Procedure Points

∗Remove the top plate, front

casing and side casing

according the procedure for

removing the external

casing, etc.

1Disconnect the

connectors from the

PCB.

2Unlatch the 4 tabs

fastening the PCB on

the left side, and

disconnect from the

hook on the right side.

3Remove the PCB.

PCB

Procedure to Remove Electrical Parts Box Si211311E

6Removal Procedure

4. Procedure to Remove Electrical Parts Box

Procedure Warning Be sure to wait for 10 minutes or more after turning off all power

supplies before disassembling work.

Step Procedure Points

∗Remove the top plate, front

casing and side casing

according the procedure for

removing the external

casing, etc.

If the lead wire is clamped by

the piping, etc., remove the

clamp.

1Remove the discharge

pipe, heat exchanger

and air thermistor. (If

not removing,

disconnect the

connector from the

PCB.)

1) Remove the

discharge pipe

thermistor.

2) Remove the heat

exchanger thermistor.

Thermistor installation spring

Thermistor

Thermistor installation spring

Pull up the

thermistor to

remove.

Stopper

Si211311E Procedure to Remove Electrical Parts Box

Removal Procedure 7

3) Remove the outdoor

air thermistor.

2Disconnect the motor

operated valve coil, and

crank case heater

connectors from the

PCB.

Note :

If not dismounting the rear/side

casing, remove the 2 screws of

the El. compo. box.

3Remove the El. compo.

box installation screw.

4Remove the El. compo.

box by pulling it toward

yourself and lifting. Caution

Be careful of the lead wire

protruding from the rear surface

of the El. compo. box.

Step Procedure Points

Procedure to Remove Electronic Expansion Valve and Solenoid Valve Si211311E

8Removal Procedure

5. Procedure to Remove Electronic Expansion Valve

and Solenoid Valve

Procedure Warning Be sure to wait for 10 minutes or more after turning off all power

supplies before disassembling work.

Step Procedure Points

∗Make sure the refrigerant is

completely empty.

1Remove the electronic

expansion valve cover.

2The motor operated

valve is removed by

pulling while turning the

electronic expansion

valve coil’s lever.

3Use a metal plate or

protective sheet for

welding to prevent other

pipes from being

affected by the gas

welding flame.

Note:

When installing, apply the flame

while cooling with a leak cloth so

that the temperature of the main

body does not rise above

120ºC.

4Heart the brazed part

and remove.

Motor operated

valve cover

Motor operated

valve coil

Motor operated

valve

Protective sheet

for welding

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