Specifications

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118
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'10 • SR-T-091
(12)ޓProtective control function
(a) Frost prevention control
1) Operating conditions
2) Detail of anti-frost operation
3) Reset conditions:
Indoor heat exchanger
temperature (ºC)
2.5 5 8
0 rps
Lower
limit
speed
compressor
command
speed
(b) Cooling overload protective control
1) Operating conditions:
2) Detail of operation
Indoor heat exchanger
temperature
Item
5°C or lower 2.5°C or lower
Lower limit of compressor command speed
Indoor fan
Outdoor fan
4-way valve
Item
SRK20~35ZJ-S SRK50ZJ-S
Outdoor air temperature
Lower limit speed
Model
a)
b)
a)
b)
a)
b)
(model 50 : 23 rps)
more, or 47ºC or more (model 50 : 41ºC or more) with the compressor running, the lower limit
41°C or more
29 rps
The lower limit of compressor command speed is set to 30 or 40 (model 50 : 29) rps and even if the calculated result
becomes lower than that after fuzzy calculation, the speed is kept to 30 or 40 (model 50 : 29) rps. However, when the
thermo becomes OFF, the speed is reduced to 0 rps.
(b)
1)
2)
3)
(c)
(d)
Signals of wireless remote controller (Display)
–6 –5 –4 –3 –2 –1
±
0+1+2+3+4+5+6
Setting
temperature
Cooling
Dehumidifying
Heating
When both the indoor and the outdoor air temperatures are in the range “A”, cooling or heating is switched depending on
the difference between the setting temperature and the indoor air temperature.
When the operation mode has been judged following the change of setting temperature with the remote controller, the hourly
judgment of operation mode is cancelled.