Panasonic CU-8ME1XPK - Page 308

PACD011001C2 Test Operation
Test Operation Urban Multi “MX1R, ME1R Series” Using R-407C 287
1.4.4 Additional Refrigerant Charge Operation Procedure
[Work procedure]
1. Conduct a normal refrigerant charge operation.
With the outdoor unit stopped, charge refrigerant from the service port of the liquid-side stop valve.
(Keep the liquid-side and gas-side stop valves open.)
∗
Conduct the following operation only when the required amount of refrigerant could not be supplied by a
charge operation performed with the outdoor unit in non-operating condition.
2. Turn on the main switches of the indoor and outdoor units, and fully open the gas-side stop valve.
(Be sure to keep the liquid-side stop valve closed.)
3. Set the service mode.
4. The additional refrigerant charge operation is complete when the required amount of refrigerant is
charged. If the charging operation does not complete in 30 minutes, make the settings again and
operate the equipment.
(If the CONFIRM button is pressed during an additional refrigerant charge operation, the equipment
stops operating.)
5. Remove the refrigerant charge hose, then fully open the liquid-side stop valve.
1.4.5 Refrigerant Recovery Mode
∗
This mode holds the electronic expansion valves of indoor and outdoor units fully open for the recovery
of refrigerant.
[Work procedure]
1. Stop air conditioner operations.
2. Set the service mode.
3. Turn off the main switches of the indoor and outdoor units.
(Be sure to turn off the main switches of all units within 10 minutes after the first unit is turned off.)
4. Conduct a refrigerant recovery operation.
∗
Cancel the setting in the setting mode, or cancel the mode by resetting the outdoor unit using the power
switch.
In setting mode 1, depress NEXT PAGE button for 5 seconds to set to setting
mode 2.
8777777
Press OPERATION button to set LEDs for additional refrigerant charge
operation indication.
8787877
Press CONFIRM button.
8777779
Press OPERATION button to set LED indication as shown at the right.
8777797
Press CONFIRM button to enter setting.
8777787
Press CONFIRM button again to start operation.
8977777
Low pressure level is indicated during operation. 3.5 k or higher
8878888
3.5 k or lower
8877888
2.5 k or lower
8877788
1.5 k or lower
8877778
Indication after operation stops (operation stops after 30 minutes).
(Flashing LEDs indicate pressure level immediately before operation stops.)
8877799
This indication shows that
pressure level was "2.5 k or
lower" immediately before
operation stopped.
In setting mode 1, depress NEXT PAGE button for 5 seconds to set to setting
mode 2.
{
777777
Press OPERATION button to set LEDs for refrigerant recovery mode
indication.
{
7
{
7
{
7
{
Press CONFIRM button.
{
77777
9
Press OPERATION button to set LED indication as shown at the right.
{
777797
Press CONFIRM button to enter setting.
{
7777
{
7
Press CONFIRM button again to set to initial condition.
{
777777