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(ii)
(ii)
(17) Rotor lock
(17) Rotor lock
(18) Outdoor fan motor protection
(18) Outdoor fan motor protection
(19) Outdoor fan control at low outdoor temperature
(19) Outdoor fan control at low outdoor temperature
(a)
Cooling
(a)
Cooling
(i)
Operating conditions
(i)
Operating conditions
(ii) Detail of operation
(ii) Detail of operation
1
1
High pressure sensor (HPS) 1.50MPa
a
than 1.50 MPa, gradually reduce the outdoor fan speed by 1 speed.
2
2
b
1.50MPa High pressure sensor (HPS)
-
37
-
37
3
MPa,
3
c
High pressure sensor (HPS) 2.72MPa
(iii) Reset conditions
2.72MPa,
(iii) Reset conditions
3) Reset conditions:
1
a
1
2
b
2
(b)
Heating
(i)
Operating conditions
(ii) Detail of operation
(iii) Reset conditions
min
-1
min
-1
Tho-A
Tho-A
Outdoor air temperature > 10˚C
Outdoor air temperature > 10˚C
Outdoor air temperature < = 10˚C
Outdoor air temperature < = 10˚C
Tho-R
Tho-R
Lower
Lower
L
Outdoor air temperature > 16˚C
Outdoor air temperature > 16˚C
Outdoor air temperature < = 16˚C
Outdoor air temperature > 16˚C
Outdoor air temperature < = 16˚C
Outdoor air temperature < = 16˚C
(SCM60 : 40
)
(SCM60 : 40
)
temperature
Tho-R
temperature
Tho-R
37
(SCM60 : 40
)
37
(SCM60 : 40
)
Tho-A
high pressure sensor (HPS) is 2.72MPa
Tho-A
Tho-A
Tho-A
-
Outdoor fan
Outdoor fan
Lower limit speed
Lower limit speed
Lower limit speed
3rd
Tho-R
37
) (SCM60 : 40
Tho-R
37
) (SCM60 : 40
2.72MPa
37
(SCM60 : 40
(SCM60 : 40
37
(
)
192
-
'18 • SCM-T-251
high pressure sensor is lower
)
)
high pressure sensor 1.50MPa - 2.72
)
)
high pressure sensor is higher than
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Troubleshooting
