Sanyo C4272R S/C - Manual (Page 83)

7-22. Precautions
Request that the customer be present at the time the test run is performed. Explain the Operation Manual to
the customer, and then have the customer actually operate the system.
Be sure to pass the manual and warranty certificate to the customer.
Verify that the AC 208 / 230 V wiring is not connected to the terminal plate which is used to connect the inter-unit
control wiring.
* If AC 208 / 230 V is accidentally applied to this terminal plate, the fuse (0.5A for both indoor and outdoor units) on
the inter-unit control PCB will be tripped in order to protect the PCB. Correct the wiring connections, then
disconnect the 2P connectors (indoor unit: blue, OC, CN40; outdoor unit: blue, OC) which are connected
to the PCB and connect the other 2P connectors (indoor unit: brown, EMG, CN44; outdoor unit: brown, EMG).
(See the figure below.)
If operation is still not possible with the brown connectors connected, cut the varistor (black) (for both the indoor
and outdoor units).
(Be sure to turn OFF the power before performing this work.)
VA5 (Varistor, black)
Indoor unit control PCB Outdoor unit control PCB
2P connector (brown)
EMG, CN44
2P connector (blue)
OC, CN40
Varistor (black)
Fuse
0.5A
Fuse
0.5A
Serial 1 connector (blue)
Serial 2 connector (brown)
<For 3072R, 3672R>
<For 2672R>
Varistor (black)
VA002
2P connector (brown)
2P connector (blue)
Fuse
0.5A
CHK (2P plug)
SW103
TEST
OFF
ON
83
RC
(WL)
07-115 SSHP_II 5/7/07 4:00 PM Page 83