Precautions On Test Run; Checkpoint - Panasonic S-18MK2U6 Installation Instructions Manual

7. PRECAUTIONS ON TEST RUN

● Request that the customer be present at the time the test run is performed. Explain the Operating Instructions 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 (0.4A 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 (blue,
OC, CN040) which are connected to the PCB and connect the other 2P connectors (brown, EMG, CN044). (See the figure
below.)
If operation is still not possible with the brown connectors connected, cut the JP003.
(Be sure to turn OFF the power before performing this work.)

■ Checkpoint

Checkpoint
Make sure whether indoor and outdoor units are
1
correctly installed.
2 Make sure whether gas leakage is tested.
Make sure whether insulation is completed.
3
(Refrigerant piping and drain piping)
Make sure whether drain water is running
4
smoothly.
Make sure whether the power voltage matches
5
the nameplate.
Make sure whether there is miswiring or incorrect
6
connection.
Make sure whether the ground construction is
7
completed.
Make sure whether the wire gauge is followed by
8
the recommended specifications.
Make sure whether the air intake and air outlet
9 of the indoor and outdoor units are sealed by
obstacles.
CN044 JP003 CN040
Symptom
Fall, vibration, noise
No cooling, no heating
Water leakage
Water leakage
Inoperative, burnout
Inoperative, burnout
Ground leakage
Inoperative, burnout
No cooling, no heating
21
Check Remark