Panasonic U-100PEY1E5, Technical Data & Service Manual, Page: 352 / 739

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K1 Type (for Link Wiring)
Caution
This unit may be used in a single-type refrigerant system where 1 outdoor unit is connected to 1 indoor
unit, and also in a system where 1 outdoor unit is connected to multiple indoor units (maximum 2).
If link wiring is used, set the outdoor unit system address to allow the combination of indoor and outdoor units to
be identified.
At the same time, indicate the indoor-outdoor unit combination number in a location where it can be checked
easily (near the indoor unit nameplates). (This number will be required for subsequent maintenance.
Refer to section “Checking indoor unit addresses” and “Indicating (marking) the indoor and outdoor unit
combination number” for K1 Type (for Link Wiring).)
Request that the customer be present when the test run is performed. At this time, explain the Operating Instructions
and have the customer perform the actual steps.
Be sure to pass the manuals and warranty certificate to the customer.
Check that the 220 – 240 V AC wiring is not connected to the inter-unit control wiring connector terminal.
If 220 – 240 V AC is accidentally applied, the indoor or outdoor unit control PCB fuse (0.5 A for both indoor and
outdoor units) will blow in order to protect the PCB.
Correct the wiring connections, then disconnect the 2P connectors (indoor: blue, OC) (outdoor: blue, serial 1)
that are connected to the PCB, and replace them with 2P connectors (indoor: brown, EMG) (outdoor: brown,
serial 2).
If operation is still not possible after changing the brown connectors, cut off the jumper (outdoor unit : JP007) or
the varistor (indoor unit) on the PCB.
(Be sure to turn the power OFF before performing this work.)
2 HP
Indoor unit control PCB
Varistor (black)
VA002
Fuse (0.5A)
CHK (2P plug)
SW103
2P connector (brown)
2P connector (blue)
ON
OFF
TEST
TEST
ON
OFF
3 HP
Fuse (0.5A)
2P connector (blue)
2P connector
(brown)
SW103
Varistor (black)
VA002
CHK (2P plug)
Outdoor unit control PCB
LED1
LED2
PUMP DOWN(CN042)
EEPROM(IC006)
AUTO ADD(CN041)
System address
Rotary switch(S002)
TERMINAL (CN003)
JP007
System address
DIP switch (S003)
Bottom
side
Up side
HIC
Temperature
sensor
SILENT MODE
(CN028,WHT)
RC-P(CN034,RED)
FAN(CN030,WHT)
ROM(CN012,WHT)
OC(CN013,BLU)
EMG(CN014,BRN)
20S(CN09,WHT)
FUSE(30A,F003)
C1(CN021,BLK)
TO(CN022,WHT)
TD,TS(CN023,WHT)
C2(CN020,WHT)
MOV(CN025,WHT)
63PH(CN004,RED)
RC-P(CN032,RED)
SM830211-07̲PAC-i.indb 342 SM830211-07̲PAC-i.indb 342 2013/09/17 22:48:08 2013/09/17 22:48:08