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SiBE28-804
General Functionality
Functional Description
49
1.13 Freeze Prevention Function
Purpose
In order to avoid formation of ice on the indoor unit heat exchanger in cooling and dry mode, the
system automatically starts up a freeze prevention cycle when a number of specific conditions
are fulfilled.
Freeze
Prevention start
conditions
Freeze prevention start decided by the indoor unit (factory setting):
Freeze
Prevention stop
conditions
Freeze prevention stop decided by the indoor unit (factory setting):
Indoor coil temperature > 7°C for 10 minutes continuous
Parameters
Reference
Please refer to "Outdoor Field Settings" in Part 5 "Test Operation" for details on possible use of
EDP room settings in case of low latent heat applications. (Refer to P99)
Indoor coil temperature
≤
-1°C for 40 minutes accumulated
Indoor coil temperature < A°C for 1 minute continuous
Compressor is running for minimum 8 minutes since
operation start or end of previous freeze up cycle.
OR
&
FAQ
FHQ
All except FAQ & FHQ
A
-1°C
-3°C
-5°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 ...