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SiBE28-804
General Functionality
Functional Description
51
1.15 Preheating Operation Control
RZQ71C7, RZQS71·100C7V1B
Outline
After the compressor has been turned off, the preheating operation will be activated in order to
avoid refrigerant from dissolving in the compressor oil.
Trigger
conditions
Starting conditions
• Compressor stopping
&
&
or
• Less than 6 hours duration after turning on the power.
• Longer than 1 hour elasped after shutting down the compressor.
• Outside temperature is not declining.
• Discharge pipe temperature < 70˚C
Ending conditions
• Operation of thermostat is established
{
{
{
&
{
{
{
or
&
• Longer than 6 hours elasped after turning on the power.
• Less than 1 hour duration after shutting down the compressor.
• Outside temperature is declining.
• Discharge pipe temperature > 75˚C
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 ...