E26 Inconsistencies In Number Of Outdoor Units (For Only W Multi - Panasonic 2WAY Multi Technical & Service Manual

E26 Inconsistencies in Number of Outdoor Units (for only W MULTI)

Error detection method
A Mismatch of Outdoor Unit Count is assumed when the number of outdoor units in the same refrigerant
system
(No. 10 fi rst on) does not match made setting in a W MULTI (*) system.
* A unit with an outdoor unit address (No. 10 First sub) of something other than "0" in an outdoor main board
is identifi ed as a W MULTI unit.
Troubleshooting
1
1-1 Is the outdoor unit a W MULTI unit?
Check board
setting
Have the system address, outdoor unit address and number
of connected outdoor units for the same refrigerant system
been properly entered?
1-2
• System address ... No. 10 First out
• Outdoor unit address ...No. 10 First sub
• Number of connected outdoor units ...No. 10 First on
Is the outdoor unit address set to "0"?
* For systems other than W MULTI, be sure to set "0."
1-3
A system set to something other than "0" is recognized as W
MULTI.
2 Is the wiring (indoor/outdoor operation wiring) between
Check 2-1 W MULTI outdoor units in the same refrigerant system
wiring connected?
3
Are all W MULTI outdoor units in the same refrigerant system
3-1
Check
turned on?
the power
Is the S010 (terminal resistor) switch on the outdoor main
supply and
board correctly set?* Regardless of system addresses, 1
wiring
3-2
outdoor unit in the same link wiring must be set to "Short"
(terminal resistor "on").
3-3 Replace outdoor main board
IV–56
Yes 1-2
No 1-3
Yes 2-1
No Enter the data correctly.
Yes 3-3
No Set to "0."
Yes 3-1
No Repair wiring.
Yes 3-2
No Turn power ON
Yes 3-3
No Enter the data correctly.