(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)
(a)
Operating conditions
(ii) Detail of operation
Outdoor air temperature > 10ËšC
Outdoor air temperature
<
=
10ËšC
Outdoor fan
Outdoor air temperature > 16ËšC
Outdoor air temperature
<
=
16ËšC
Lower limit speed
Tho-A
Tho-R ) (SCM60 : 40 )
(SCM60 : 40 )
(SCM60 : 40 )37
37
37
min
-1
1
Tho-R
(iii) Reset conditions
37
Tho-R
Tho-A
3
1
2
-
temperature
Lower
(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 > 10ËšC
Outdoor air temperature
<
=
10ËšC
Outdoor fan
Outdoor air temperature > 16ËšC
Outdoor air temperature
<
=
16ËšC
Lower limit speed
Tho-A
Tho-R ) (SCM60 : 40 )
(SCM60 : 40 )
(SCM60 : 40 )37
37
37
2
(iii) Reset conditions
37
Tho-R
Tho-A
3
1
2
-
temperature
(SCM60 : 40 )
Heating
(i)
(b)
Operating conditions
(ii) Detail of operation
(iii) Reset conditions
Outdoor air temperature > 16ËšC
Outdoor air temperature
<
=
16ËšC
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