Daikin DX20VC Series User manual

INVERTER PCB KIT
AVXC20, AVZC18, AVZC20, DX20VC,
DZ18VC & DZ20VC INSTRUCTIONS
ATTENTION INSTALLING PERSONNEL
As a professional installer you have an obligation to know the product better than the customer. This includes all safety precautions
and related items.
Prior to actual installation, thoroughly familiarize yourself with this Instruction Manual. Pay special attention to all safety warnings.
Often during installation or repair it is possible to place yourself in a position which is more hazardous than when the unit is in
operation.
Remember, it is your responsibility to install the product safely and to know it well enough to be able to instruct a customer in its safe
use.
Safety is a matter of common sense...a matter of thinking before acting. Most dealers have a list of specific good safety practices...follow
them.
The precautions listed in this Installation Manual are intended as supplemental to existing practices. However, if there is a direct
conflict between existing practices and the content of this manual, the precautions listed here take precedence.
© 2018
5151 San Felipe, Suite 500, Houston, TX 77056
www.daikinac.com
P/N: IO-858 Date: October 2018
D ISCHARGE YOUR BODY ’ S STATIC ELECTRICITY BEFORE TOUCHING PCB
AND / OR UNIT . A N ELECTROSTATIC DISCHARGE CAN ADVERSELY AFFECT
ELECTRICAL COMPONENTS . U SE THE FOLLOWING PRECAUTIONS DURING
INSTALLATION AND SERVICING TO PROTECT THE PCB FROM DAMAGE :
1. D
ISCONNECT ALL POWER TO THE UNIT . D O NOT TOUCH THE PCB OR
ANY WIRE CONNECTED TO THE CONTROL PRIOR TO DISCHARGING YOUR
BODY ’ S ELECTROSTATIC CHARGE TO GROUND .
2. F
IRMLY TOUCH A CLEAN , UNPAINTED , METAL SURFACE OF THE UNIT
AWAY FROM THE CONTROL .
B
Y PUTTING THE UNIT , THE CONTROL , AND THE PERSON AT THE SAME
ELECTROSTATIC POTENTIAL , THESE STEPS WILL HELP AVOID EXPOSING THE
PCB TO ELECTROSTATIC DISCHARGE .
D O NOT CONNECT TO OR USE ANY DEVICE THAT IS NOT DESIGNED
CERTIFIED BY THE MANUFACTURER FOR USE WITH THIS UNIT . S ERIOUS
PROPERTY DAMAGE , PERSONAL INJURY , REDUCED UNIT PERFORMANCE
AND / OR HAZARDOUS CONDITIONS MAY RESULT FROM THE USE OF
SUCH NON - APPROVED DEVICES .
WARNING
O NLY PERSONNEL THAT HAVE BEEN TRAINED TO INSTALL , ADJUST , SERVICE OR
REPAIR ( HEREINAFTER , “ SERVICE ”) THE EQUIPMENT SPECIFIED IN THIS MANUAL
SHOULD SERVICE THE EQUIPMENT . T HE MANUFACTURER WILL NOT BE RESPONSIBLE
FOR ANY INJURY OR PROPERTY DAMAGE ARISING FROM IMPROPER SERVICE OR
SERVICE PROCEDURES . I F YOU SERVICE THIS UNIT , YOU ASSUME RESPONSIBILITY
FOR ANY INJURY OR PROPERTY DAMAGE WHICH MAY RESULT . I N ADDITION , IN
JURISDICTIONS THAT REQUIRE ONE OR MORE LICENSES TO SERVICE THE EQUIPMENT
SPECIFIED IN THIS MANUAL , ONLY LICENSED PERSONNEL SHOULD SERVICE THE
EQUIPMENT . I MPROPER INSTALLATION , ADJUSTMENT , SERVICING OR REPAIR OF
THE EQUIPMENT SPECIFIED IN THIS MANUAL , OR ATTEMPTING TO INSTALL , ADJUST ,
SERVICE OR REPAIR THE EQUIPMENT SPECIFIED IN THIS MANUAL WITHOUT PROPER
TRAINING MAY RESULT IN PRODUCT DAMAGE , PROPERTY DAMAGE , PERSONAL
INJURY OR DEATH .
HIGH VOLTAGE!
D ISCONNECT ALL POWER BEFORE SERVICING .
M
ULTIPLE POWER SOURCES MAY BE PRESENT . F AILURE
TO DO SO MAY CAUSE PROPERTY DAMAGE , PERSONAL
INJURY OR DEATH .
WARNING

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PROGRAMED INVERTER PCB KIT INSTRUCTIONS:
WARNING: Discharge your body’s static electricity before touching
PCB and/or unit. An electrostatic discharge can adversely affect
electrical components. Use the following precautions during
installation and servicing to protect the PCB from damage. By
putting the unit, the control, and the person at the same electrostatic
potential, these steps will help avoid exposing the PCB to
electrostatic discharge.
HIGH VOLTAGE!
D
ISCONNECT ALL POWER BEFORE SERVICING OR
INSTALLING THIS UNIT . M ULTIPLE POWER SOURCES MAY
BE PRESENT . F AILURE TO DO SO MAY CAUSE PROPERTY
DAMAGE , PERSONAL INJURY OR DEATH .
WARNING
1. Disconnect all power to the unit. Do not touch the PCB or any
wire connected to the PCB prior to discharging your body’s
electrostatic charge to ground.
2. Firmly touch a clean, unpainted, metal surface of the unit
away from the control.
3. Note location of all wiring and plug terminals (recommend
pictures) and remove all wiring from PCB.
NOTE: Thermal grease applied between the heat sink and the
refrigerant loop allows for proper cooling of the PCB circuits
(IGBT’s). Failure to apply the grease on the cooling loop may result
in an insufficient cooling circuit. Only use thermal grease
part # 9S00859.
4. Remove the screws from the cooling loop cover to allow it to
hinge open. (Figure 1)
Figure 1
5. Pull back gently on the 3/8 copper tubing. (Figure 2)
Figure 2
Amana Model REF UNIT
AVXC200241** 2 TON AC
AVXC200361** 3 TON AC
AVXC200481** 4 TON AC
AVXC200601** 5 TON AC
AVZC200241** 2 TON HP
AVZC200361** 3 TON HP
AVZC200481** 4 TON HP
AVZC200601** 5 TON HP
AVZC180241** 2 TON HP
AVZC180361** 3 TON HP
AVZC180481** 4 TON HP
AVZC180601** 5 TON HP
DZ18VC0241**
DZ18VC0361**
DZ18VC0481**
DZ18VC0601**0272R01045S
0272R00978S
DZ20VC0481**
DZ20VC0601**
0272R00988S
0272R00991S
DX20VC0241**
DX20VC0361**
DX20VC0481**
DX20VC0601**
DZ20VC0241**
DZ20VC0361**
0272R00997S
0272R01042S
0272R01043S
0272R01044S
PROG. INV. PCB
KIT Daikin Model
0272R00976S
0272R00981S
0272R00994S
0272R00985S

3
6. Carefully slide the board from the cooling loop. (Figure 3)
Figure 3
NOTE: Do not remove any grease from the cooling loop.
7. Before installing the new board back in place, evenly apply
the thermal grease. (Figure 4)
Figure 4
NOTE: Additional Thermal grease part # 9S00859.
8. Insert the cooling loop in the metal bracket. (Figure 5)
Figure 5
9. Secure the top plate with the screws. (Figure 6)
Figure 6

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