PACD011001C2 Function
Function Urban Multi “MX1R, ME1R Series” Using R-407C 267
1.21 Oil Temperature Sensor (8 and 10 Hp only)
1.21.1 Prevention of Wetness during Heating
‹
Wet operation is prevented by modification of super heating (SH) by oil temperature sensor (R5T).
(Low equivalent pressure = Te)
1.21.2 Prevention of Oil Dilution during Defrost
‹
The unit controls upper limit frequency of the compressor and is designed to prevent oil from being
diluted while defrosting by means of an oil temperature sensor.
‹
Startup subsequent to defrosting is improved by the oil temperature sensor.
R5T ≤ Te+10˚C
SH=10˚C
R5T > Te+10˚C
SH=5˚C
(M022)
R5T ≤ Te+10˚C
INV · 86Hz+STD · ON
R5T > Te+10˚C
INV · 116Hz+STD · ON
(M023)
R5T ≤ Te+10˚C
INV · 116Hz+STD · OFF (20 min.)
R5T > Te+10˚C
Upper limit release
(M024)
106Hz+OFF
116Hz+ON
Ta < -12˚C
Ta > -10˚C
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