Daikin FTKS20KVLT Service Manual

Daikin FTKS20KVLT Service Manual

Removal procedure

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Si041049
REMOVAL
PROCEDURE
S E R V I C E
M A N U A L
2.0/2.5/3.0/3.5/4.2/4.6/5.0 kW Class
Indoor Unit
Inverter
Wall Mounted Type

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Table of Contents
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Summary of Contents for Daikin FTKS20KVLT

  • Page 1 Si041049 REMOVAL PROCEDURE S E R V I C E M A N U A L 2.0/2.5/3.0/3.5/4.2/4.6/5.0 kW Class Indoor Unit Inverter Wall Mounted Type...
  • Page 2 Service Manual Removal Procedure Indoor Unit Cooling Only Heat Pump FTKS20KVLT FTXS20KVLT FTKS25KVLT FTXS25KVLT FTKS30KVLT FTXS30KVLT FTKS25KVMA FTXS25KVMA FTKS35KVMA FTXS35KVMA FTXS46KVMA FTXS20G2V1B FTXS25G2V1B FTXL20G2V1B FTXS35G2V1B FTXL25G2V1B FTXS42G2V1B FTXL35G2V1B FTXS50G2V1B FTXG25JV2CW FTXS20J2V1B FTXG35JV2CW FTXS25J2V1B FTXG50JV2CW FTXS35J2V1B FTXG50JV2C FTXS42J2V1B FTXS50J2V1B FTXS20G2V1B FTXS25G2V1B...
  • Page 3: Table Of Contents

    Si041049 Table of Contents 1. Removal of Air Filters................2 2. Removal of Front Panel ................4 3. Removal of Front Grille ................5 4. Removal of Horizontal Blades / Vertical Blades........7 5. Removal of Electrical Box ..............11 6. Removal of PCBs (Pattern 1)..............14 7.
  • Page 4: Removal Of Air Filters

    Removal of Air Filters Si041049 1. Removal of Air Filters Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step 1. Appearance features Warning Dangerous: High voltage A high voltage is applied to all the electric circuits of this product including...
  • Page 5 Si041049 Removal of Air Filters Step Procedure Points 3. Remove the Titanium apatite photocatalytic air- purifying filters. The Titanium apatite The right and left filters are Air filter photocatalytic air- interchangeable. purifying filter ASSY is attached to the back of the air filter.
  • Page 6: Removal Of Front Panel

    Removal of Front Panel Si041049 2. Removal of Front Panel Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step Open the front panel Front panel over the position where it stops.
  • Page 7: Removal Of Front Grille

    Si041049 Removal of Front Grille 3. Removal of Front Grille Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step 1. Remove the service cover. Preparation Remove the front panel Remove the screw of Service cover according to the “Removal of...
  • Page 8 Removal of Front Grille Si041049 Step Procedure Points 2. Remove the front grille. Remove the 2 screws. (R13490) Unfasten the 3 hooks at The convex marks (...) on Hook the top. the front panel indicate the position of the hooks. (R12715) (R13491) Pull the upper part of...
  • Page 9: Removal Of Horizontal Blades / Vertical Blades

    Si041049 Removal of Horizontal Blades / Vertical Blades 4. Removal of Horizontal Blades / Vertical Blades Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step 1. Remove the horizontal blade (large).
  • Page 10 Removal of Horizontal Blades / Vertical Blades Si041049 Step Procedure Points 2. Remove the horizontal blade (small). Unfasten the center shaft while bending the horizontal blade (small) Horizontal blade (small) slightly. (R13493) Unfasten the left shaft. (R13494) Unfasten the right shaft. There is a key alignment at the right shaft.
  • Page 11 Si041049 Removal of Horizontal Blades / Vertical Blades Step Procedure Points Remove the fan guard. (R8079) 4. Remove the vertical blade Pivot ASSYs. Vertical blade ASSY Detach the pivot from the interlock shaft for vertical blades with a flat screwdriver. Interlock shaft (R13092)
  • Page 12 Removal of Horizontal Blades / Vertical Blades Si041049 Step Procedure Points Remove the vertical A vertical blade ASSY has 5 Hook blade ASSY. fins. It is impossible to replace only one fin. The vertical blade ASSY is not marked for difference between right and left.
  • Page 13: Removal Of Electrical Box

    Si041049 Removal of Electrical Box 5. Removal of Electrical Box Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step The figure shows the Preparation Electrical box connections of the wire Remove the front grille harnesses.
  • Page 14 Removal of Electrical Box Si041049 Step Procedure Points Disconnect the connector for the swing motors [S41]. [S41] (R7935) Release the harness for the swing motors from the hook. (R7936) Cut the clamp near the Some models have no clamp indoor heat exchanger near the indoor heat thermistor.
  • Page 15 Si041049 Removal of Electrical Box Step Procedure Points Remove the screw and detach the earth / ground wire. Earth / ground wire (R16863) Remove the screw of the electrical box. (R3939) Unfasten the hook at the upper far side by pressing it from above and pulling the Hook...
  • Page 16: Removal Of Pcbs (Pattern 1)

    Removal of PCBs (Pattern 1) Si041049 6. Removal of PCBs (Pattern 1) Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step 1. Remove the shield plate. Preparation Remove the electrical box The figure shows the...
  • Page 17 Si041049 Removal of PCBs (Pattern 1) Step Procedure Points 2. Remove the terminal board. Remove the screw and remove the terminal Terminal board board. (R10315) 3. Remove the signal receiver unit. Signal receiver unit Unfasten the 3 hooks. (R12277) Unfasten the hook on the opposite side, and lift up the signal receiver unit.
  • Page 18 Removal of PCBs (Pattern 1) Si041049 Step Procedure Points Hook (R12278) Remove the signal receiver unit. Signal receiver unit (R8088) 4. Remove the INTELLIGENT EYE sensor PCB. Unfasten the 3 hooks INTELLIGENT EYE and remove the sensor PCB INTELLIGENT EYE sensor PCB.
  • Page 19 Si041049 Removal of PCBs (Pattern 1) Step Procedure Points 5. Remove the signal receiver PCB. Unfasten the 3 hooks and remove the signal receiver PCB. Signal receiver (R8090) Disconnect the [S48] connector [S48] from the signal receiver PCB. (R8091) 6. Remove the display PCB. The display PCB is positioned on the rear side of The figure shows the...
  • Page 20 Removal of PCBs (Pattern 1) Si041049 Step Procedure Points Unfasten the 4 hooks and remove the display PCB. Hook (R10318) Disconnect the connector [S49] from the display PCB. LED 3 (Green) [S49] LED 2 (Yellow) LED 1 (Green) (R8096) 7. Remove the control PCB. Hook Unfasten the lower 2 hooks of the control...
  • Page 21 Si041049 Removal of PCBs (Pattern 1) Step Procedure Points The figures show the [S1]: DC fan motor names of the PCB [S25]: INTELLIGENT EYE component parts. sensor PCB [S26]: control PCB [S32] [S32]: indoor heat exchanger thermistor [S41]: swing motors [S1] [S46]: display PCB [S47]: signal receiver PCB...
  • Page 22: Removal Of Pcbs (Pattern 2)

    Removal of PCBs (Pattern 2) Si041049 7. Removal of PCBs (Pattern 2) Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Appearance of the electrical box Shield plate Control PCB Signal receiver PCB...
  • Page 23 Si041049 Removal of PCBs (Pattern 2) Step Procedure Points Pull out the terminals. (R13111) Unfasten the hooks and remove the shield plate. Shield plate (R13112) Remove the signal Signal receiver PCB. (3 hooks) receiver PCB (R13113) Disconnect the [S48]: control PCB connector [S48].
  • Page 24 Removal of PCBs (Pattern 2) Si041049 Step Procedure Points Detach the signal receiver unit. Signal receiver unit (R13115) Reverse the signal receiver unit. (R13116) Detach the display Display PCB. (4 hooks) (R13117) Reverse the display [S49]: control PCB PCB and disconnect the connector [S49].
  • Page 25 Si041049 Removal of PCBs (Pattern 2) Step Procedure Points Cut the clamp. (R13119) Release the earth / ground and thermistor from the hooks. Earth / ground Thermistor (R13120) Unfasten the lower 2 The control PCB is also Hook hooks of the control fixed by upper 2 hooks.
  • Page 26: Removal Of Swing Motors (Pattern 1)

    Removal of Swing Motors (Pattern 1) Si041049 8. Removal of Swing Motors (Pattern 1) Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step 1. Remove the swing motor for vertical blades.
  • Page 27 Si041049 Removal of Swing Motors (Pattern 1) Step Procedure Points Detach the pivot from Pivot the interlock shaft for Vertical blade vertical blades with a flat screwdriver. Interlock shaft (R13092) Remove the swing motor unit. Swing motor unit (R8126) Detach the interlock Interlock shaft shaft from the swing motor with a flat...
  • Page 28 Removal of Swing Motors (Pattern 1) Si041049 Step Procedure Points Remove the 2 screws. Screw (R13573) Remove the swing motor for vertical blades. (R10333) Disconnect the Connector: green connector. (R10334) Removal Procedure...
  • Page 29 Si041049 Removal of Swing Motors (Pattern 1) Step Procedure Points 2. Remove the swing motors for horizontal blades. Caution When reassembling, do not Remove the screw and confuse the installing order of remove the swing the 2 motors and the colors of motors for horizontal the connectors.
  • Page 30: Removal Of Swing Motors (Pattern 2)

    Removal of Swing Motors (Pattern 2) Si041049 9. Removal of Swing Motors (Pattern 2) Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points 1. Remove the swing motors for horizontal blades.
  • Page 31 Si041049 Removal of Swing Motors (Pattern 2) Step Procedure Points Detach the pivot from Pivot the interlock shaft for Vertical blade vertical blades with a flat screwdriver. Interlock shaft (R13092) Remove the swing motor unit for vertical blades. (R13125) Detach the interlock Interlock shaft shaft from the swing motor with a flat...
  • Page 32 Removal of Swing Motors (Pattern 2) Si041049 Step Procedure Points Remove the 2 screws. Screw (R13128) Remove the swing motor for vertical blades. (R13129) Disconnect the Connector : green connector. (R10334) Removal Procedure...
  • Page 33: Removal Of Indoor Heat Exchanger

    Si041049 Removal of Indoor Heat Exchanger 10.Removal of Indoor Heat Exchanger Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step 1. Disconnect the refrigerant Preparation piping. Remove the electrical box according to the “Removal of Remove the screws...
  • Page 34 Removal of Indoor Heat Exchanger Si041049 Step Procedure Points 2. Remove the indoor heat exchanger. Detach the indoor unit Piping from the installation fixture plate. Unfasten the hook of the piping fixture at the back of the indoor unit. Remove the piping fixture.
  • Page 35 Si041049 Removal of Indoor Heat Exchanger Step Procedure Points Unfasten the upper hook on the right side with a flat screwdriver. Upper hook (R13138) After unfastening the When reassembling the Indoor heat exchanger lower hooks, lift up the indoor heat exchanger, indoor heat exchanger make sure that the right by its right side.
  • Page 36: Removal Of Fan Motor

    Removal of Fan Motor Si041049 11.Removal of Fan Motor Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step 1. Remove the right side Preparation plate. Remove the indoor heat exchanger according to the “Removal of Indoor Heat Exchanger”.
  • Page 37 Si041049 Removal of Fan Motor Step Procedure Points Remove the 2 screws of the fan motor fixing plate. Fan motor fixing plate (R8116) Unfasten the hook of the fan motor fixing plate and remove the plate. (R8117) (R8118) 2. Remove the fan motor. Dislocate the fan rotor by sliding it to the right.
  • Page 38 Removal of Fan Motor Si041049 Step Procedure Points Loosen the lock screw When reassembling the fan and remove the fan motor and the fan rotor, Lock screw motor. provide as much as 5 mm of play between the side face of the rotor and the bottom frame.
  • Page 39 Revision History Month / Year Version Revised contents 01 / 2013 Si041049 First edition...
  • Page 40 Improper installation can result in water or refrigerant leakage, electrical shock, fire or explosion. Use only those parts and accessories supplied or specified by Daikin. Ask a qualified installer or contractor to install those parts and accessories. Use of unauthorised parts and accessories or improper installation of parts and accessories can result in water or refrigerant leakage, electrical shock, fire or explosion.

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