6
6
.
.
C
C
O
O
N
N
T
T
R
R
O
O
L
L
M
M
O
O
D
D
E
E
L
L
53
√―――
Mode conflict will not happen
×
―――
Mode conflict will happen
Outdoor four-way Valve Control
Four-way valve of the outdoor machine shuts down when cooling but starts when
heating. The operation of heating defrosting refers to defrosting operation and, when the
heating remote shutdown, the four-way valve disconnects in 50s when the compressor
stops working.
Start-up Protection:
To prevent compressor from restart frequently in the condition that system pressure has
not been completely balanced, it can’t be restarted within 3 minutes.
Pressure Protection:
Pressure switch is normally kept open. When the pressure grows too high, the pressure
switch will close and soft will enter pressure protection control. soft will automatically
decrease the frequency. If the pressure is still unable to return to normal condition after
decreasing frequency, compressor will stop and report the fault code of pressure protection.
Summary of Contents for SRH-PM18DC
Page 20: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A 23 2 AMS 18UR4SVUP3 VG3 VL3 VT3 UP3 UL3 UQ3 ...
Page 21: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A 26 OUTDOOR 1 AMW2 16U4SGC1 ...
Page 22: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A 29 4 AMW3 24U4SZD ...
Page 23: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A 32 7 AMW4 36U4SAC ...
Page 64: ...9 9 P PA AR RT TS S L LI IS ST T 67 MODEL AMS 18UR4SVUP3 UL3 UQ3 VG3 VL3 VT3 ...
Page 67: ...9 9 P PA AR RT TS S L LI IS ST T 89 Mode AMW4 36U4SAC ...
