We reserve the right to alter specifications.
GB.FUNKRXHC.180907
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Size 040 - 080 (two compressors)
The refrigerant circuit contains a speed controlled com-
pressor and a compressor of the on/off type.
The speed controlled compressor works between a MIN
level (total 12.5% per compressor, corresponding to 25%
of the speed controlled compressor) and maximum speed.
Increasing temperature requirement
At a temperature requirement below 12.5% the speed
controlled compressor is run at 25% of max, speed.
When the temperature requirement increases above
12.5%, the speed controlled compressor is regulated to
follow the temperature requirement.
At a temperature requirement above 50%, the speed
controlled compressor runs to max, speed.
When the temperature requirement increases above
62.5%, the on/off compressor and the speed controlled
compressor are regulated to follow the temperature re-
quirement.
At a temperature requirement of 100%, both compressors
run at max, speed.
Decreasing temperature requirement
When the temperature requirement decreases below
100%, the on/off compressor is operational and the speed
controlled compressor is regulated to follow the tempera-
ture requirement.
At a temperature requirement below 62.5% the speed
controlled compressor is run at 25% of max, speed and
the on/off compressor is operational.
When the temperature requirement decreases below
50%, the on/off compressor shuts down and the speed
controlled compressor is regulated to follow the tempera-
ture requirement.
At a temperature requirement below 12.5% the speed
controlled compressor runs at 25% of max, speed.
Total output
The diagram shows the total capacity in per cent, which is
the same as the control signal from the control system.
Compressor, on/off
Temperature requirement
Compressor operation
Compressor speed controlled
Temperature requirement
Compressor operation
Total output
Temperature requirement
Total output
0
20
100 %
90
80
70
60
50
40
30
20
10
1
0
40
60
80
100%
0
20
100 %
90
80
70
60
50
40
30
20
10
1
0
40
60
80
100%
0
20
100 %
90
80
70
60
50
40
30
20
10
1
0
40
60
80
100%
60
0
20
100 %
90
80
70
60
50
40
30
20
10
1
0
40
60
80
100%
0
20
100 %
90
80
70
60
50
40
30
20
10
1
0
40
60
80
100%
0
20
100 %
90
80
70
60
50
40
30
20
10
1
0
40
60
80
100%
60
0
20
100 %
90
80
70
60
50
40
30
20
10
1
0
40
60
80
100%
0
20
100 %
90
80
70
60
50
40
30
20
10
1
0
40
60
80
100%
0
20
100 %
90
80
70
60
50
40
30
20
10
1
0
40
60
80
100%
60
Temp. requirement, GOLD
Operation level, HC