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Frequency Regulating Functions
SiBE28-804
70
Functional Description
4.6
Discharge Pipe Temperature Control
Outline
The compressor operating frequency will be controlled in order to avoid abnormal high
compressor temperatures (see also expansion valve control).
Flow chart
Parameters
Td = Discharge pipe temperature
Normal operation
• &
OR
• &
OR
OR
Td > B°C
Compressor upper limit frequency
–1 step/20 sec
Compressor upper limit frequency
+1 step/1 min
Compressor upper limit frequency
H Hz
Compressor stop
Malfunction stop (F3 indication)
10 times or less stopping in 200 minutes
Td
≤
B°C
• Upper limit frequency
= Maximum frequency
• Td < B°C
• Td
≤
B°C
• 5 min elapsed
• Td
<
A°C
• Td
≥
C°C
continues for 5 minutes
• 300 sec
• Td
≥
E°C continues
for G minutes
• Td
≥
F°C
Stopped 11 times
in 200 minutes
• &
• Td
>
D°C
OR
• Td < A°C
RZQ71C7,
RZQS71·100C7V1B
RZQ100~140C7,
RZQS125·140C7V1B
A°C
100°C
100°C
B°C
105°C
105°C
C°C
110°C
110°C
D°C
120°C
120°C
E°C
110°C
115°C
F°C
125°C
135°C
Gmin
15min
10min
H Hz
118.5Hz
62Hz
Summary of Contents for FHQ100BUV1B x 2
Page 13: ...SiBE28 804 2 ...
Page 19: ...Model Name and Power Supply SiBE28 804 8 General Information ...
Page 29: ...Specifications SiBE28 804 18 Specifications ...
Page 33: ...Wired Remote Controller SiBE28 804 22 Remote Controller 1 2 Installation ...
Page 34: ...SiBE28 804 Wired Remote Controller Remote Controller 23 ...
Page 93: ...Outdoor Unit Fan Speed Control SiBE28 804 82 Functional Description ...
Page 131: ...Test Run and Operation Data SiBE28 804 120 Test Operation ...
Page 251: ...Troubleshooting by Remote Controller Display LED Display SiBE28 804 240 Troubleshooting ...
Page 277: ...PCB Layout SiBE28 804 266 Appendix ...
Page 297: ...RZQ100 140C7 RZQS125 140C7V1B SiBE28 804 286 Removal Procedure ...
Page 311: ...SiBE28 804 iv Index ...