– 250 –
[Setup of outdoor units other than header unit and failed unit]
(8) Leaving the balance pipes of the unit for pressure adjustment and the failed unit fully open, fully close the
balance pipe packed valves of all other outdoor units.
[Setup of header unit]
(9) While monitoring the low-pressure sensor output, adjust the pressure to around 0.12 MPa by slowly closing the
gas pipe service valve.
(10)Compare the manifold gauge pressure of the failed unit with the low-pressure sensor output of the header unit,
and wait until the two pressure readings become almost identical. After letting the system continue operating
for a while longer, fully close the gas pipe service valve of the unit for pressure adjustment.
[Setup of failed outdoor unit]
(11)When the manifold gauge pressure of the failed outdoor unit falls below 0.10 MPa, fully close the balance pipe
packed valve, and press SW05 on the interface P.C. board to finish the test cooling operation.
(12)Turn off the power supply to all the outdoor units, and recover the residual refrigerant in the outdoor unit using
a refrigerant recovery device. Be sure to measure the amount of recovered refrigerant. (This is necessary to
determine how much additional refrigerant will be needed after the completion of the repair.)
This is the end of the refrigerant recovery operation.
Set SW01/02/03 of the header unit back to 1/1/1.
(8)
(6)
(7)
(9)
(10)
(12)
(11)
Approx. 10 minutes after system startup,
fully close gas pipe service valve.
Select header unit as unit
for pressure adjustment.
Fully close balance pipes of all other outdoor units
other than unit for pressure adjustment and failed unit.
Header unit (outdoor
unit selected as such)
Wait until low-pressure sensor outputs of
failed outdoor unit and outdoor unit for
pressure adjustment become almost
identical, and, after letting system continue
operating for while longer, fully close gas
pipe service valve.
While monitoring low-pressure sensor
output, adjust pressure to around 0.12 MPa
by slowly closing gas pipe service valve.
Turn off power supply to all outdoor units at source,
and recover residual refrigerant in outdoor unit using
refrigerant recovery device. Measure amount of
recovered refrigerant.
When manifold gauge pressure of failed outdoor unit
falls below 0.10 MPa, fully close balance pipe packed
valve.
Press SW05 to finish test cooling operation.
Failed outdoor unit
Содержание MMY-MAP0804HT7JP
Страница 23: ... 22 1 Wiring Diagrams 1 1 Outdoor Unit Models MMY MAP0804 MAP1004 and MAP1204 ...
Страница 24: ... 23 Models MMY MAP1404 and MAP1604 ...
Страница 35: ... 34 1 2 10 Slim Duct Type AP024 AP027 Models MMD AP0244SPH MMD AP0274SPH ...
Страница 38: ... 37 1 2 13 High Wall Type 3 series Models MMK AP0073H AP0093H AP0123H AP0153H AP0183H AP0243H ...
Страница 52: ... 51 2 5 Parts Layout in Outdoor Unit 8 10 12HP Model MMY MAP0804 MAP1004 MAP1204 ...
Страница 53: ... 52 14 16HP Model MMY MAP1404 MAP1604 ...
Страница 57: ... 56 2 7 2 Inverter P C board for compressor MCC 1596 A3 IPDU ...
Страница 323: ......