Specifications

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69
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(18) Rotor 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 rotor
lock has occurred and the compressor is stopped.
(19) Discharge pipe sensor disconnection protection control
(a) When the decision speed is other than 0 rps.
1) ThO-D(10) - ThO-D(0) < 8 °C, and ThO-D(10) - ThO-A(10) < 5 °C
The decision speed is set on A rps for 5 minutes. After 5 minutes, the decision speed is set on B rps for 5 minutes.
2) Th
O-D(20) - ThO-D(15) < 5 °C :
The decision speed is set on 0 rps.
(b) Once the unit is stopped by this function, it is not restarted.
Notes (1) Tho-D(X): After compressor operation, the discharge pipe sensor temperature after X minutes.
(2) Tho-A(X): After compressor operation, the outdoor air sensor temperature after X minutes.
(20) Outdoor unit failure
This is a function for determining when there is trouble with the outdoor unit during air conditioning.
The compressor is stopped if any one of the following in item (a), (b) is satisfied. Once the unit is stopped by this function, it is not
restarted.
(a) When the input current is measured at 1 A or less for 3 continuous minutes or more.
(b) If the outdoor unit sends a 0 rps signal to the indoor unit 3 times or more within 20 minutes of the power being turned on.
(21) Regulation of outdoor air flow
• Values of A, B
Model
A
B
12 rps
64 rps
SCM40ZG-S
12 rps
64 rps
SCM45ZG-S
12 rps
64 rps
SCM48ZG-S
10 rps
40 rps
SCM60ZG-S
10 rps
40 rps
SCM80ZG-S
(a) The fan operates as follows according to the decision speed. (Except during defrost.)
Cooling Heating
Decision speed (rps) Less than 26
More than 54
70 or more
but 70 or less
Outdoor fan speed 6th speed5th speed
More than 26
but 54 or less
4th speed3rd speed
Less than 26
More than 38
54 or more
but 54 or less
6th speed5th speed
More than 26
but 38 or less
4th speed3rd speed
Cooling Heating
Decision speed (rps)
Outdoor fan speed
40 type: Less than 50
45 type: Less than 55
48 type: Less than 70
60 type: Less than 40
40 type: 50 or more
45 type: 55 or more
48 type: 70 or more
60 type: 40or more
40 type: Less than 60
45 type: Less than 70
48 type: Less than 70
60 type: Less than 50
40 type: 60 or more
45 type: 70 or more
48 type: 70 or more
60 type: 50 or more
6th speed5th speed6th speed5th speed
◆SCM80ZG-S
◆SCM40~60ZG-S
(b) If the outdoor unit’s fan speed drops, the outdoor fan is run for 1 minute at that speed.