Outdoor Unit Functional Concept
ESIE05-03
2–48
Part 2 – Functional Description
3
1
2
4
5
3.3.3
Low Pressure Protection Control (RZQ100~140)
Outline
In order to prevent abnormal low pressures in the system, the below control function will be activated.
Low pressure is detected by the low pressure switch.
Flow chart
Parameters
Normal operation
LPS activates
Normal operation
&
(When cooling operation)
(When heating operation)
• Within 5 minutes after defrosting
• LPS activates continuously
Upper limit A Hz
Copmressor upper
limit frequency
B Hz
Compressor upper
limit frequency
C Hz
Compressor upper limit
frequency
C Hz
Compressor stop: O Hz
Malfunction stop (E4 indication)
&
• LPS returns
• 30 sec elapsed
10 times or less
stopping in 200 minutes
• LPS activates
• 5 minutes elapsed
10 times or less stopping
in 200 minutes
• LPS activates
• 1 minute elapsed
LPS returns
Condition D*
Condition D*
Stopped 11 times in 200 minutes
• Within 5 minutes after starting
• After 10 minutes after defrosting
Condition D* : &
• OR
• Lp > 0.25 Mpa
LPS activates
• LPS returns
• 1 minute elapsed
• LPS returns
• 30 sec’s elapsed
&
&
&
RZQ100~140B
A Hz
123 Hz
B Hz
72 Hz
C HZ
41 Hz
ESIE05-03.book Page 48 Wednesday, April 6, 2005 4:09 PM
Summary of Contents for RZQ100B7W1B
Page 1: ...Service Manual ESIE05 03 RZQ71 125B8V3B RZQ100 140B7W1B Sky Air Inverter R 410A B series...
Page 2: ......
Page 10: ...ESIE05 03 viii Table of Contents 3 1 4 5...
Page 24: ...ESIE05 03 1 2 Part 1 System Outline 3 1 1 5...
Page 32: ...General Outline Outdoor Units ESIE05 03 1 10 Part 1 System Outline 3 1 1 4 5...
Page 42: ...Specifications ESIE05 03 1 20 Part 1 System Outline 3 1 1 4 5...
Page 56: ...Functional Diagrams ESIE05 03 1 34 Part 1 System Outline 3 1 1 4 5...
Page 58: ...ESIE05 03 1 36 Part 1 System Outline...
Page 70: ...Wiring Diagrams ESIE05 03 1 48 Part 1 System Outline 3 1 1 4 5...
Page 84: ...PCB Layout ESIE05 03 1 62 Part 1 System Outline 3 1 1 4 5...
Page 86: ...ESIE05 03 2 2 Part 2 Functional Description 3 1 2 5...
Page 110: ...General Functionality ESIE05 03 2 26 Part 2 Functional Description 3 1 2 4 5...
Page 150: ...ESIE05 03 3 2 Part 3 Troubleshooting 3 1 3 5...
Page 188: ...Troubleshooting ESIE05 03 3 40 Part 3 Troubleshooting 3 1 3 4 5...
Page 264: ...Additional Checks for Troubleshooting ESIE05 03 3 116 Part 3 Troubleshooting 3 1 3 4 5...
Page 266: ...ESIE05 03 4 2 Part 4 Commissioning and Test Run 3 1 4 5...
Page 306: ...ESIE05 03 5 2 Part 5 Disassembly and Maintenance 3 1 5...