Daikin VRV Inverter K Series Manual page 331

SI-05C.BOOK Page 317 Monday, November 6, 2000 4:13 PM
SiE-05C
3.21 Malfunction of Transmission Between Outdoor Units
U U U U 7 7 7 7
Remote Controller
Display
Supposed Causes
Trobleshooting
Troubleshooting PLUS Series
Incorrect outdoor unit No. setting for constant speed type outdoor unit
Incorrect outdoor - outdoor unit transmission wiring connection (Q1Q2)
Incorrect function unit - outdoor unit external control adaptor transmission wiring connection
Incorrect C/H setting
Incorrect C/H unified address setting (function unit, outdoor unit external control adaptor)
Faulty function unit PC board
Faulty outdoor unit external control adaptor
Is the
constant speed
type outdoor unit outdoor NO
unit No. setting switch
(SS2) set correctly?
YES
Is outdoor-outdoor
NO
unit transmission wiring
normal?
YES
YES
C/H setting is set to "IND"
NO
NO
C/H is to be switched all
together.
YES
YES
C/H setting is set to
"MASTER"
NO
YES
C/H setting is set to
"SLAVE"
Outdoor unit external control adaptor
•Is the adaptor receiving power?
•Is the C/H unified address set correctly?
Outdoor unit (unified master unit)
•Is the unit receiving power?
•Is the C/H unified address set correctly?
Set the switch correctly and turn the
power back on.
Fix transmission wiring.
NO
Is indoor-outdoor unit
Fix indoor - outdoor unit
transmission wiring
transmission wiring.
normal?
YES
Function unit PC board replacement
Set C/H setting to "IND"
The same C/H unified address is
Are the following items
used for more than one outdoor unit
normal?
in outdoor - outdoor unit
transmission. Reset the address.
NO
Are the following items
Fix faulty part.
normal?
YES
Does the
NO
malfunction occur again
Outdoor unit external control
when the C/H setting is
adaptor replacement
set to "IND"
YES
Function unit PC board replacement
: http://splitoff.ru/tehn-doc.html
Troubleshooting
(VF155)
317