SM-16005-rev.2
3-21
TROUBLESHOOTING
O.U. PCB: Outdoor Unit PCB
I.U. PCB: Indoor Unit PCB
(
)
Is LED3 (yellow)
on I.U. PCB ON?
Is LED3 (yellow) on
I.U. PCB flashing more
than once in 10 seconds.
Yes
Yes
Faulty O.U. PCB.
Set it correctly.
Faulty I.U. PCB.
Faulty I.U. PCB.
Check wiring between
outdoor unit and indoor
units or fuse (EF) for
I.U./O.U. PCB.
No
Yes
No
Does Alarm occur with
all indoor units?
Yes
No
Check other indoor units.
No
No
Is LED3 (yellow)
ON even if connector
CN2 on I.U. PCB
is removed?
Yes
Yes
Indoor
Unit
Does refrigerant system
No. setting between
O.U. and I.U correspond?
O.U.: DSW4 and RSW1
I.U.: DSW5 and RSW2
Is LED1 (red) on
Change-Over Box
PCB ON?
Is LED3 (green) on
Change-Over Box
PCB ON?
Yes
No
No
Check Change-Over
Box wiring.
Check wiring between
outdoor unit and indoor
units.
No
Is LED2 (yellow) on
Change-Over Box PCB
flashing more than
once in 10 seconds?
No
Replace fuse.
Check other
Change-Over Boxes.
Yes
Is the fuse for
Change-Over Box
PCB blown?
Yes
Is voltage between
"L1" and "N" of PCN1
on Change-Over Box
PCB 208 or 230V?
Faulty Change-Over
Box PCB.
No
Change-Over
Box
(In Case
of Heat
Recovery
System)
Yes
Содержание IDM030B21E Series
Страница 2: ......
Страница 10: ...viii SM 16005 rev 2...
Страница 14: ......
Страница 15: ...SM 16005 rev 2 1 1 INSTALLATION 1 Installation...
Страница 19: ...SM 16005 rev 2 2 1 OPERATION 2 Operation...
Страница 20: ...2 2 SM 16005 rev 2 OPERATION 2 1 Indoor Unit Refer to the Operation Manual for Ducted Medium Static EconoFresh...
Страница 22: ......
Страница 23: ...SM 16005 rev 2 3 1 TROUBLESHOOTING 3 Troubleshooting...
Страница 70: ......
Страница 71: ...SM 16005 rev 2 4 1 MAINTENANCE 4 Maintenance...
Страница 72: ...4 2 SM 16005 rev 2 MAINTENANCE 4 1 Maintenance of Outdoor Unit Refer to the Service Manual for Outdoor Unit...
Страница 89: ...SM 16005 rev 2 5 1 EXTERNAL INPUT OUTPUT AND FUNCTION SETTING 5 External Input Output and Function Setting...
Страница 130: ......
Страница 131: ...SM 16005 rev 2 6 1 FIELD WORK INSTRUCTIONS 6 Field Work Instructions...
Страница 140: ...6 10 SM 16005 rev 2 FIELD WORK INSTRUCTIONS 6 8 Mollier Chart for R410A f t 3 l b...
Страница 141: ...SERVICE PARTS LIST SM 16005 rev 2 7 1 7 Service Parts List...
Страница 142: ...SERVICE PARTS LIST 7 2 SM 16005 rev 2 Refer to the Service Parts List for Ducted Medium Static EconoFresh...
Страница 143: ......
Страница 144: ...2016 Johnson Controls Inc SM 16005 rev 2 Code No LIT 12012293 Revised February 2019...