Mitsubishi SCM40ZS-S, Техническое руководство

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(16) Serial signal transmission error protection
(a) Purpose
(b) Detail of operation
(17) Rotor lock
(18) Outdoor fan motor protection
(19) Outdoor fan control at low outdoor temperature
Cooling
(i)
(i)
(ii)
(a)
Operating conditions
(ii) Detail of operation
(iii) Reset conditions
Outdoor air temperature > 10˚C
Outdoor air temperature <= 10˚C
Outdoor fan
Outdoor air temperature > 16˚C
Outdoor air temperature <= 16˚C
Lower limit speed
Tho-A
Tho-R
37
37
Tho-R
Tho-A
min
-1
1
2
Tho-R
3
1
2
temperature
Lower
3) Reset conditions:
Heating
(i)
(b)
Operating conditions
(ii) Detail of operation
(iii) Reset conditions
Outdoor air temperature > 16˚C
Outdoor air temperature <= 16˚C
Lower limit speed
High pressure sensor (HPS) 1.50MPa
high pressure sensor is lower
high pressure sensor 1.50MPa - 2.72
MPa,
high pressure sensor is higher than
1.50MPa High pressure sensor (HPS) 2.72MPa
3rd
High pressure sensor (HPS) 2.72MPa
high pressure sensor (HPS) is 2.72MPa
) (
Tho-A
Tho-A
a
b
c
a
b
than 1.50 MPa, gradually reduce the outdoor fan speed by 1 speed.
2.72MPa,
L
(20) Outdoor fan control at overload
(i) Starting condition
When the outdoor air temperature (Tho-A) has risen higher than 41°C for 30 seconds continuously while the compressor is operating.
(ii) Contents of control
The outdoor fan is stepped up by 3 speed. (Upper limit 6th speed)
(iii) Reset condition
When the compressor is turned off or the outdoor air temperature (Tho-A) has dropped lower than 40°C.
(i) Starting condition
When the outdoor heat exchanger temperature (Tho-R) has risen higher than 13°C for 30 seconds continuously while
the compressor is operating.
(ii) Contents of control
The outdoor unit fan is stepped down by 3 speed. (Lower limit is 2nd speed)
(iii) Reset condition
When the compressor is turned off or the outdoor heat exchanger temperature (Tho-R) has dropped lower than 10°C.
40 41
ON
Under control
OFF
Normal operation
10 13
ON
Under control
OFF
Normal operation
Outdoor air temperature(ºC)
Outdoor heat exchanger temperature(ºC)
40 41
ON
Under control
OFF
Normal operation
10 13
ON
Under control
OFF
Normal operation
Outdoor air temperature(ºC)
Outdoor heat exchanger temperature(ºC)
(a) Cooling
(b) Heating
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197
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'16 • SCM-T-199