Samsung ACH1800E, Service Manual

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Samsung Electronics
Caution :
• Test operation is disabled when the chamber “A” is on after initialization of wired remote controller.
• The communication time between wired remote controller and indoor unit is required for 2 seconds. If any one of set is ON, be sure to
put it off by pressing the ON/OFF button and start the TEST operation after 35 seconds at minimum.(The communication time with all
chambers : 16 x 2 seconds = 32seconds)
• For the reservation operation, the communication time between all 16 chambers is required for 64 seconds due to the increase of
communication data.
• The first digit (MSB) of error code displayed during the group operation stands for the address of SET where the error occurs.
Startup of group operation
• Put off the power of SET.
• Adjust the addresses of digital switch of indoor
unit PCB to “0”~”15”, respectively.
• Put on the option switch SW2 of wired remote
controller PCB.
• Put on the power of SET.
• On the wired remote controller display, the digits
“00”
→
“11”
→
“22”
→
are displayed up to “FF”.
After “FF” display, the wired remote controller is
automatically set to the preserved operation
status of indoor unit of chamber “A”.
• If the current SET of chamber “A” is ON, put the
set off by pressing the ON/OFF button.
Only at the SET off of chamber “A”, the TEST mode
is enabled.
• Press the TEST BUTTON of wired remote
controller for more than 3 seconds.
• If the SET is operating for 3 minutes through
forced cooling operation, the SET is off after 2
minutes.
• The Error occurring in the TEST operation
displays in the wired remote controller display
window and is referred to the following table.
4-10
Installation
Error Code
*1
*5
*6
*9
*A
*C
*D
Meaning
Indoor unit room thermistor error
Indoor pipe thermistor error
Outdoor unit thermistor error
Float switch open error
Indoor unit ↔ outdoor unit communication error
Wired remote controller ↔ indoor unit
communication error
Outdoor unit pipe thermistor error
Checking Area
• Indoor unit thermistor exist or not disconnected
• Indoor unit PCB
• Indoor unit pipe thermistor
• Indoor unit PCB
• Outdoor unit thermistor
• Outdoor unit PCB
• Drain pump, float switch
• Drain system
• Dip SW2 of indoor unit main PCB
(If drain pump is not installed, SW2 and SW4
shall be at OFF position.)
• Indoor unit
↔
Outdoor unit communication cable
• Indoor unit PCB, outdoor unit PCB
• Wired remote controller ↔ indoor unit
communication cable
• Indoor unit main PCB
• Outdoor unit pipe thermistor
• Outdoor unit PCB
00152-OIAIN-5 2/1/01 1:56 PM Page 4-10