Daikin RZQ100HY4A User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Outdoor Unit
Inverter
Pair Type
4/5/6 HP Class
Si281317

Service Manual
Removal Procedure
Outdoor Unit
Applicable Models
zHeat Pump
RZQ100HY4A
RZQ125HY4A
RZQ160HY4A

Si281317
Removal Procedure 1
Table of Contents
1. Procedure to Remove Outside Panels....................................................2
2. Procedure to Remove Propeller Fan and Fan Motor ..............................3
3. Procedure to Remove Switch Box ..........................................................4
4. Procedure to Remove PCB Assy (1).......................................................6
5. Procedure to Remove PCB Assy (2).......................................................7
6. Procedure to Remove PCB Assy (3).......................................................8
7. Procedure to Remove Low Pressure Sensor,
Electronic Expansion Valve, and Others.................................................9
8. Procedure to Remove Thermistor .........................................................10
9. Procedure to Remove Four Way Valve.................................................11
10.Procedure to Remove Compressor.......................................................12

Procedure to Remove Outside Panels Si281317
2Removal Procedure
1. Procedure to Remove Outside Panels
Procedure Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step Procedure Points
1For the suction grille,
pull the lower parts (in 7
places) frontward,
disengage the hooks at
the top of the grille with
a slotted screwdriver,
and then press the
overall grille downward
to disassemble it.
2For the front panel (side
front panel), unscrew a
single mounting screw
and then press this
panel downward to
remove it.
3For the top panel,
unscrew the 8 mounting
screws and then
remove this panel.
4For the front panel of
the piping cover,
unscrew a single
mounting screw and
then remove this panel.
5For the side panel of
the piping cover,
unscrew the 4 mounting
screws and then
remove this panel.
6For the side rear panel,
unscrew the 6 mounting
screws and then
remove this panel.
Hooks Suction grille
Top panel
Front panel of
piping cover
Front
panel Side panel of piping
cover
Side
rear
panel

Si281317 Procedure to Remove Propeller Fan and Fan Motor
Removal Procedure 3
2. Procedure to Remove Propeller 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 and top
panels in accordance with
the Procedure to remove
Outside Panels.
1. Remove the propeller fan
1Unscrew the 4 screws
that fix the air discharge
grille and disengage the
4 hooks at the top and
bottom of the grille, and
then remove this air
discharge grille.
2Unfasten the fan lock
nut that fixes the
propeller fan.
2. Remove the fan motor In order to disconnect the
connector, do not pull the
lead wire. Hold the
connector part and then
press the hooks.
Cautions in mounting the
motor
Be sure to fix the motor lead
wire with a clamp. Not
heeding this caution will
cause the entanglement of
the lead wire around the fan,
which will result in damage
to the fan.
1Remove the connector
for the fan motor from
the PCB.
(X206A, X207A)
2The lead wire is
clamped in 3 places.
(Click on partition
plate×3 places)
3Unscrew the 3 screws
that fix the front panel
and then pull up the
lead wire.
4Unfastening the 4 lock
bolts from the fan motor
enables the removal of
this fan motor.
Air discharge grille
Fan lock nut
Propeller fan
Hooks
Hooks
Hooks
Connector for fan motor
Screws
(3 numbers)
Clamp
Bolts (4 numbers)
Lead wire Propeller fan