Daikin RXYSQ4P7Y1B User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Outdoor Unit
Inverter
Multi Type
4/5/6 HP Class
Si341305E

Service Manual
Removal Procedure
Outdoor Unit
Applicable Models
zHeat Pump
RXYSQ4P7Y1B
RXYSQ5P7Y1B
RXYSQ6P7Y1B

Si341305E
Removal Procedure 1
Table of Contents
1. Procedure to Remove Outside Panels....................................................2
2. Procedure to Remove Propeller Fan and Fan Motor ..............................5
3. Procedure to Remove Compressor.........................................................7

Procedure to Remove Outside Panels Si341305E
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
1
2
3
4
5
Remove 8 screws of
the top panel.
Remove 1 screw of the
front panel (2), and then
remove the panel after
pushing it downward to
release the hook.
To remove the front
panel for piping cover,
remove its 1 screw.
To remove the side
panel for piping cover,
remove 4 screws of the
side panel.
To remove the side
panel, remove its 6
screws after removing
the outdoor air
thermistor (∗1).
It is possible to remove only
the front panel without
removing the top panel.
∗1 Remove the outdoor air
thermistor.
Top panel
Front panel for
piping cover
Front panel
(2)
Hook
Side panel
Side panel for
piping cover
Outdoor air
thermistor

Si341305E Procedure to Remove Outside Panels
Removal Procedure 3
6
7
Remove the discharge
grill after removing its 4
screws and releasing its
4 hooks.
Remove the front panel
(1) after removing its 7
screws and pushing it
upward.
On the rear side of the front
panel (1), a reinforce plate is
attached. Be careful not to
lose it while removing the
front panel (1).
Step Procedure Points
Front panel (1)
Discharge grill
Hook
Reinforce plate

Procedure to Remove Outside Panels Si341305E
4Removal Procedure
8 Remove the heat
exchanger cover after
releasing its 3 hooks
with a minus driver.
9 Remove the outdoor air
thermistor after pulling it
to the near side and
sliding to the right.
10 The figure in the right is
of rear side view.
Step Procedure Points
Outdoor air
thermistor
(R1T)

Si341305E Procedure to Remove Propeller Fan and Fan Motor
Removal Procedure 5
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 discharge
grill, front panel and front
panel for piping cover,
according to the
"Procedure to Remove
Outside Panels".
1 Remove the nuts with a
washer, which fixing the
propeller fan.
Front panel (1)
Discharge
grill
Propeller fan
Nut with a washer

Procedure to Remove Propeller Fan and Fan Motor Si341305E
6Removal Procedure
2 Remove the clamp
material.
Pull off the connector while
supporting its body and
pushing the engaging click,
without pulling its lead wires.
Caution on mounting the
motor
If the motor lead wires are
not fixed by using the clamp
material, it may always
damage the lead wire
because the lead wires
twined around the fan.
When mounting the propeller
fan, make the D cut
correspond to the hole of the
fan.
3 Remove the 4 fixing
screws for fan motor
and then remove the
fan motor.
Step Procedure Points
Earth wire
Clamp material
D cut
Lead wire for
fan motor
Fan
motor
Mount the fan motor with its mark "z"
positioned toward the bottom.
Lead wire Propeller fan

Si341305E Procedure to Remove Compressor
Removal Procedure 7
3. Procedure to Remove Compressor
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 outside
panels, electrical
component, and
compressor fixing panel,
according to the
"Procedure to Remove
Outside Panels"
1. Pull off the lead wire of
compressor.
1Open upward the sound
insulation for the
terminal cover.
2Remove the terminal
cover with a minus
driver, etc.
3Remove the terminals
for the compressor with
a round nose chain
pliers with side cutters,
etc.
Terminal cover
Sound insulation for the terminal cover
Red color: S
White color: Blank
Blue color: N
Lead wire to the compressor

Procedure to Remove Compressor Si341305E
8Removal Procedure
4Remove the sound
insulation for the
compressor.
5Remove the crankcase
heater under the
compressor.
Pull the spring to trip the catch.
6Remove the 3 fixing
bolts of the compressor.
You can see the far side
fixing bolts when the bottom
discharge grill is removed.
Remove the bolt (s) in view
first.
Step Procedure Points

Si341305E Procedure to Remove Compressor
Removal Procedure 9
Make sure that there is no
refrigerant gas left within
the refrigerant circuit
system before performing
the operation
The cutting part is in the
compressor side relative to
the brazing part.
Preliminarily cut off with a
gas welder, a part of the
piping from the end side to
the soldered portion, which
have remained after being
cut using a pipe cutter,
before replacing with a new
compressor.
7Cut off the suction pipe,
discharge pipe and
unloader pipe of
compressor with a pipe
cutter (3 places).
Step Procedure Points
Compressor
Discharge pipe portion
Unloader
piping portion
Suction
pipe portion
Warning
Refrigerant oil in the compressor
may catch fire, so prepare wet
cloth so as to extinguish a fire
rapidly.
Warning
If refrigerant gas leaks during
operation, ventilate the room.
(The exposure of refrigerant gas
to a fire causes generates toxic
gas.)
Caution
Do not suffer burns due to
contact with piping etc. heated by
a gas welder.

Revision History
Month / Year Version Revised contents
07 / 2013 Si341305E First edition

Head Office:
Umeda Center Bldg., 2-4-12, Nakazaki-Nishi,
Kita-ku, Osaka, 530-8323 Japan
Tokyo Office:
JR Shinagawa East Bldg., 2-18-1, Konan,
Minato-ku, Tokyo, 108-0075 Japan
http://www.daikin.com/global_ac/
All rights reserved
c
Warning
zDaikin products are manufactured for export to numerous countries throughout the world. Prior to
purchase, please confirm with your local authorised importer, distributor and/or retailer whether this
product conforms to the applicable standards, and is suitable for use, in the region where the product
will be used. This statement does not purport to exclude, restrict or modify the application of any local
legislation.
zAsk a qualified installer or contractor to install this product. Do not try to install the product yourself.
Improper installation can result in water or refrigerant leakage, electrical shock, fire or explosion.
zUse 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.
zRead the User's Manual carefully before using this product. The User's Manual provides important
safety instructions and warnings. Be sure to follow these instructions and warnings.
If you have any enquiries, please contact your local importer, distributor and/or retailer.
Cautions on product corrosion
1. Air conditioners should not be installed in areas where corrosive gases, such as acid gas or alkaline gas, are produced.
2. If the outdoor unit is to be installed close to the sea shore, direct exposure to the sea breeze should be avoided. If you need to install
the outdoor unit close to the sea shore, contact your local distributor.
Organization:
DAIKIN INDUSTRIES, LTD.
AIR CONDITIONING MANUFACTURING DIVISION
Scope of Registration:
THE DESIGN/DEVELOPMENT AND MANUFACTURE OF
COMMERCIAL AIR CONDITIONING, HEATING, COOLING,
REFRIGERATING EQUIPMENT, HEATING EQUIPMENT,
RESIDENTIAL AIR CONDITIONING EQUIPMENT, HEAT
RECLAIM VENTILATION, AIR CLEANING EQUIPMENT,
COMPRESSORS AND VALVES.
All of the Daikin Group’s business
facilities and subsidiaries in Japan
are certified under the ISO 14001
international standard for
environment management.
JMI-0107
Dealer
z
Specifications, designs and other content appearing in this brochure are current as of July 2013 but subject to change without notice.
Si341305E
07/2013 AK