Mitsubishi Heavy Industries SCM50ZS-S1 - Outdoor Fan Motor Protection; Outdoor Fan Control at Low Outdoor Temperature

(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
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 ) (SCM60 : 40 )
(SCM60 : 40 )
(SCM60 : 40 )37
37
37
min
-1
1
2
Tho-R
(iii) Reset conditions
37
Tho-R
Tho-A
3
1
2
-
temperature
Lower
(SCM60 : 40 )
(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
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 ) (SCM60 : 40 )
(SCM60 : 40 )
(SCM60 : 40 )37
37
37
min
-1
1
2
Tho-R
(iii) Reset conditions
37
Tho-R
Tho-A
3
1
2
-
temperature
Lower
(SCM60 : 40 )
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
-
192
-
'18 • SCM-T-251