-
40
-
'14 • SRK-T-170
(g) Heat
i
ng overload protect
i
ve control
(
i
) Indoor
u
n
i
t
si
de
1)
Operat
i
ng cond
i
t
i
on
s
:
2) Deta
i
l of operat
i
on :
3) Re
s
et cond
i
t
i
on
s
:
(
ii
) O
u
tdoor
u
n
i
t
si
de
1)
Operat
i
ng cond
i
t
i
on
s
:
When the outdoor air temperature (TH2) is 22ºC or higher continues for 30
seconds while the compressor command speed other than 0 rps.
9
1)
Operat
i
ng cond
i
t
i
on
s
:
2)
Deta
i
l of operat
i
on:
(h) Heat
i
ng low o
u
tdoor temperat
u
re protect
i
ve control
3) Re
s
et cond
i
t
i
on
s
:
-10
-8
-2
2
Lower limit 45 rps
Lower limit 40 rps
Normal operation
O
u
tdoor a
i
r temperat
u
re(°C )
a)
b)
(
i
) Protect
i
ve control
I
2
2
changed as shown in the figure below.
(ii) Protective control
II
1)
Operating conditions:
When the outdoor heat exchanger sensor (TH1) is -10ºC or lower continuously for 10 min-
utes while the compressor command speed is other than 0 rps.
2)
Detail of operation:
Upper limit of compressor command speek is 110rps (SRK25 only).
3)
Reset conditions:
When the either of the following condition is satis
¿
ed.
a)
When the outdoor heat exchanger sensor (TH1) becomes -8ºC or higher.
b)
When the compressor command speed is 0 rps.
c)
After 2 minutes in this control.
2) Detail of operation:
Upper and lower limits of compressor speed and the outdoor unit fan speed are restricted.
3) Reset
conditions:
When the outdoor air temperature drops below 21ºC.
Models SRK25, 35
Compressor command speed (rps) Outdoor fan
speed
Lower limit
Upper limit
ON
40
60
2nd speed
21
22
N
o
rma
l op
era
t
i
o
n
P
r
ot
e
ct
i
v
e
co
n
t
r
ol
O
u
tdoor a
i
r temperat
u
re(°C)
