69
No.
3
Operation explanation and applied data, etc.
1) According to the capacity demand command from the
indoor controller, the inverter frequency control of the
header and follower units is determined. The header
unit sets the start order of the follower unit connected
to the system and then starts the operation.
2) Two compressors in the outdoor unit rotate every stop
of compressor and exchanges the start order when
the compressor will be ON in the next time.
3) When two or more follower units are connected, if the
system thermostat is OFF, the rotation is judged
every compressor-OFF of the follower unit and the
start priority order of the follower units in the next
start time is exchanged.
Remarks
• Min. frequency: 26Hz
Item
Capacity control
4 Oil level detection
control
1) Based upon the detected temperature of TK1 to TK4
sensors, whether the right amount of oil is included in
the compressor case or not is judged. The header
unit and follower unit perform this control individually.
2) From relation between the detected temperature of
the operating compressor TK1 or TK2 and detected
temperature of TK3, TK4, whether oil level in the
compressor case is right or not is judged. If it is
insufficient, the control shifts to the oil equation
control.
3) This control is usually performed during operation of
the compressor.
(SV2)
(SV41)
(SV3A)
ON
(SV3E)
OFF
OFF
OFF
(SV3B)
(SV3D)
(SV3C)
Compressor 1
To Next Page
Loading...
