Compressor Lock; Outdoor Fan Motor Protection; Stop Mode - Mitsubishi SRK63ZEA-S1 Technical Manual

(20) Compressor lock

If the motor for the compressor does not turn 1/12 revolution 0.044 seconds after it has been started, it is determined that a
compressor lock has occurred and the compressor is stopped.

(21) Outdoor fan motor protection

If the outdoor fan motor has operated at 75rpm or under for more than 30 seconds, the inverter and fan motor are stopped.

(22) Stop mode

(a) Operating conditions: When the operation mode is changed, when the dehumidifying operation is changed from the
(b) Detail of operation
Functional
Operation
components
Decision
rps
Inverter command
speed
0 rps
According to
outdoor rps
Outdoor unit fun
OFF
ON
4-way valve
OFF
According to
indoor rps
Indoor unit fun
OFF
Fully closed
Flap
Set location
EEV
150 pulse
EEV
control
heating oriented mode to the cooling oriented mode or vice versa, or when the inverter speed
turns to 0 rps. [When 0 rps is commanded from the indoor unit controller, or when an outdoor
protective function is actuated]
When the complete stop command is given,
when there is and abnormal stoppage command
Cooling,cooling
oriented dehumidifying
3 min.
2 min.55 sec.
470 pulse
Stop instructions All stop Stop instructions
When stoppage occurs due to thermostat operation,
switching operations and protective function operations
Heating,heating Cooling,cooling
oriented dehumidifying oriented dehumidifying
3 min.
2 min.55 sec.
470 pulse
All stop Stop instructions
30
- -
Heating,heating
oriented dehumidifying
2 min.55 sec. 2 min.55 sec.
Hot keep
1st speed
40 sec.
470 pulse 470 pulse
Restart Stop instructions
40 sec.
Restart