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Outdoor Unit Functional Concept
ESIE06-03
2–28
Part 2 – Functional Description
3
1
2
4
5
3.12.3 Insufficient Gas Control
Outline
If a power consumption is below the specified value in which the frequency is higher than the specified
frequency, it must be regarded as gas insufficient.
In addition to such conventional function, if the discharge temperature is higher than the target
discharge pipe temperature, and the electronic expansion valve is fully open (450 pulses) more than
the specified time, it is considered as an insufficient gas.
With the conventional function, a power consumption is weak comparing with that in the normal
operation when gas is insufficient, and gas insufficiency is detected by checking a power
consumption.
When operating with insufficient gas, although the rise of discharge pipe temperature is great and the
electronic expansion valve is open, it is presumed as an insufficient gas if the discharge pipe
temperature is higher than the target discharge pipe temperature.
Judgment by input
current
When an output frequency is exceeds 40 Hz and the input current is less than specified value, the
adjustment is made for insufficient gas.
Judgment by
discharge pipe
temperature
When discharge pipe temperature is 20~45°C (depending on the model or mode) higher than target
value and the electronic expansion value opening is 480 pulse (max.), the adjustment is made for
insufficient gas.
Frequency
Power consumption
Insufficient gas zone
55 Hz
Gas insufficient
zone
Summary of Contents for Altherma EKHBH Series
Page 2: ...ESIE06 03 1 2 Part 1 System Outline 3 1 1 5 ...
Page 26: ...Functional Diagrams ESIE06 03 1 26 Part 1 System Outline 3 1 1 4 5 ...
Page 32: ...Piping Diagrams ESIE06 03 1 32 Part 1 System Outline 3 1 1 4 5 ...
Page 38: ...Switch Box Layout ESIE06 03 1 38 Part 1 System Outline 3 1 1 4 5 ...
Page 58: ...PCB Layout ESIE06 03 1 58 Part 1 System Outline 3 1 1 4 5 ...
Page 60: ...ESIE06 03 2 2 Part 2 Functional Description 3 1 2 5 ...
Page 68: ...Hydro box Functional Concept ESIE06 03 2 10 Part 2 Functional Description 3 1 2 4 5 ...
Page 88: ...ESIE06 03 3 2 Part 3 Troubleshooting 3 1 3 5 ...
Page 134: ...Error Codes System Malfunctions ESIE06 03 3 48 Part 3 Troubleshooting 3 1 3 4 5 ...
Page 152: ...Additional Checks for Troubleshooting ESIE06 03 3 66 Part 3 Troubleshooting 3 1 3 4 5 ...
Page 154: ...ESIE06 03 5 2 Part 5 Disassembly and Maintenance 3 1 5 ...