Daikin RN50HV1A User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
5.0 kW Class
Outdoor Unit
Non-Inverter
Pair Type
Si011084

Service Manual
Removal Procedure
Outdoor Unit
zCooling Only
RN50HV1A
RN50JV1

Si011084
Removal Procedure 1
Table of Contents
1. Removal of Outer Panels ........................................................................2
2. Removal of Outdoor Fan / Fan Motor .....................................................5
3. Removal of Sound Blankets....................................................................7
4. Removal of Electrical Components ASSY ..............................................9
5. Removal of Compressor ASSY.............................................................11

Removal of Outer Panels Si011084
2Removal Procedure
1. Removal of Outer 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 Remove the 4 screws
and remove the top
panel.
Take care not to cut your
finger by the fins of the
outdoor heat exchanger.
2 Remove the 4 screws
and remove the
discharge grille.
Top panel
(R5392)
(R6733)
Discharge grille
(R5394)

Si011084 Removal of Outer Panels
Removal Procedure 3
3 Remove the 6 screws
of the front panel.
4 Unfasten the center
hooks in the order of (1)
to (2).
5 Lift the left side of the
front panel and
unfasten the 3 hooks.
Step Procedure Points
(R5395)
(R13614)
(1)
Hook
(R5397)

Removal of Outer Panels Si011084
4Removal Procedure
6 Unfasten the hook on
the right side and
remove the front panel.
7 Remove the screw and
remove the stop valve
cover.
The stop valve cover has 6
hooks.
Step Procedure Points
(R5398)
Stop valve cover (R5399)
(R5400)

Si011084 Removal of Outdoor Fan / Fan Motor
Removal Procedure 5
2. Removal of Outdoor Fan / 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
1 Disconnect the relay
connector for the fan
motor.
2 Remove the 2 screws
of the fan motor fixing
plate.
3 Lift up and remove the
fan motor fixing plate.
Be careful so as not to
damage the top part of the
outdoor heat exchanger fins.
(R5401)
(R5402)
(R5403)

Removal of Outdoor Fan / Fan Motor Si011084
6Removal Procedure
4 Cut the 3 clamps and
release the fan motor
lead wire.
Put the fan motor lead wire
through the back of the fan
motor when reassembling so
as not to be entangled with
the outdoor fan.
5 Remove the nut and
remove the outdoor fan.
Nut size: M6
When reassembling, align
the mark of the outdoor
fan with the D-cut section of
the motor shaft.
6 Remove the 4 screws
and remove the fan
motor.
Be sure to remove the lower
screws first. If the upper
screws are removed first, the
fan motor may tilt or fall
because the center of its
gravity is toward the front.
It may cause injuries.
Step Procedure Points
(R5404)
(R3249)
Lead wire Outdoor fan
D-cut
(R5405)
10 mm
(R12236)
(R5406)

Si011084 Removal of Sound Blankets
Removal Procedure 7
3. Removal of Sound Blankets
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 right side
panel.
1 Remove the 4 screws.
2 Detach the outdoor
temperature sensor.
3 Unfasten the hook at
the rear side.
(R5407)
Right side
panel
(R6734)
(R6735)
Outdoor temperature sensor
Hook
(R5411)

Removal of Sound Blankets Si011084
8Removal Procedure
4 Lift up and remove the
right side panel.
When reassembling, fit the 2
lower hooks.
2. Remove the sound
blankets.
1 Remove the sound
blanket (top).
2 Remove the sound
blanket (body).
Step Procedure Points
(R5409)
Hook
(R5410)
Sound blanket
(top)
(R5412)
Sound blanket (body)
(R13316)

Si011084 Removal of Electrical Components ASSY
Removal Procedure 9
4. Removal of Electrical Components ASSY
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 nut and
remove the terminal
cover.
2 Disconnect the
compressor lead wires.
S : yellow
C : blue
R : red
Terminal cover
(R5414)
Washer-fitted
nut
Rubber washer
Terminal cover
(R5415)
Red(R)
Blue(C) Yellow(S)
(R5416)
CR
S
(R13618)

Removal of Electrical Components ASSY Si011084
10 Removal Procedure
3 Remove the gasket.
4 Remove the screw of
the electrical
components ASSY.
5 Lift up the electrical
components ASSY and
unfasten the guide for
the partition plate.
Remove the electrical
components ASSY.
Step Procedure Points
Gasket (R5417)
Screw
(R5418)
Electrical components ASSY
Guide
Partition
plate
(R5419)

Si011084 Removal of Compressor ASSY
Removal Procedure 11
5. Removal of Compressor ASSY
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 3 nuts of
the compressor ASSY. Warning
Be careful not to get yourself
burnt with the pipes and other
parts that are heated by the
gas brazing machine.
Warning
If the refrigerant gas leaks
during work, ventilate the
room. (If the refrigerant gas is
exposed to flames, toxic gas
may be generated.)
Warning
Since it may happen that the
refrigerant oil in the
compressor catches fire,
prepare wet cloth so as to
extinguish fire immediately.
Caution
From the viewpoint of global
environment protection, do
not discharge the refrigerant
gas in the atmosphere. Make
sure to collect all the
refrigerant gas.
Cautions for restoration
1. Restore the piping by non-
oxidation brazing.
2. Avoid excessive heating.
(Keep below 120°C)
In case of difficulty with gas
brazing machine
1. Disconnect the brazed part
where is easy to disconnect
and restore.
2. Cut pipes on the main unit
with a tube cutter in order to
make it easy to disconnect.
Before working, make
sure that the refrigerant
gas is empty in the circuit.
Be sure to apply nitrogen
replacement when
heating up the brazed
part.
2 Heat up the brazed part
of the discharge side
and disconnect.
3 Heat up the brazed part
of the suction side and
disconnect.
4 Lift the compressor
ASSY up and remove it.
Note:
Do not use a metal saw
for cutting pipes by all
means because the
sawdust comes into the
circuit.
When withdrawing the
pipes, be careful not to
pinch them firmly with
pliers. The pipes may get
deformed.
Provide a protective sheet
or a steel plate so that the
brazing flame cannot
influence peripheries.
Be careful so as not to
burn the compressor
terminals, the name plate,
the heat exchanger fins.
Compressor ASSY (R15503)
(R5421)
(R5422)

Revision History
Month / Year Version Revised contents
01 / 2013 Si011084 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.
Dealer
z
Specifications, designs and other content appearing in this brochure are current as of January 2013 but subject to change without notice.
Si011084
01/2013 AK.B