Daikin FTK25JV1NB Manual page 19

Si-86.book Page 11 Friday, June 23, 2000 10:26 AM
SIE-86
Frequency controlled functions
The following table shows the different functions, which are controlled by decreasing or increasing the
frequency:
Sensor
Function
Thermistor
Low outdoor outdoor ambient
temperature thermistor (R1T)
control
High outdoor
pressure temperature
limitation in thermistor (R1T)
heating indoor heat
exchanger
thermistor (R2T)
Freeze-up indoor heat
prevention exchanger
thermistor (R2T)
Peak cut off indoor heat
exchanger
thermistor (R2T)
Main Function
Why? How?
To avoid condensation in By setting a high
cooling mode. frequency limit.
This control is
not executed when the unit
is in forced cooling mode or
in test mode.
To control the pressure. By setting a high
frequency limit.
To prevent the freezing up By setting a high
of the indoor unit in cooling frequency limit.
mode.
To prevent an abnormal By setting a high
high temperature on the frequency limit.
indoor heat exchanger in
heating mode.
Set Reset
T < T >
outdoor ambient outdoor ambient
18˚C (J type) 25˚C (J type)
25˚C (H type) 33˚C (H type)
heating mode compressor stop
T > 16 ˚C timer delay (70 s)
outdoor
T has passed
indoor heat exchanger
> 22 ˚C
compressor on
during cooling T
indoor heat exchanger
0 ˚C < 8 ˚C for 2 seconds
T
indoor heat exchanger
< 8 ˚C
during heating T
indoor heat exchanger
50 ˚C < 50 ˚C for 2 seconds
T
indoor heat exchanger
< 67 ˚C
General Functionality
Malfunction
—
—
> T <
indoor heat exchanger
0 ˚C
(result: compressor
stop)
< T >
indoor heat exchanger
67 ˚C
(result: compressor
stop)
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