![background image](http://html1.mh-extra.com/html/daikin/fhq100buv1b-x-2/fhq100buv1b-x-2_service-manual_2459261072.webp)
SiBE28-804
Outdoor Unit Functional Concept
Functional Description
61
3. Outdoor Unit Functional Concept
3.1
Function Outline in Cooling Mode
Flow chart
Cooling/Dry operation
*1 Only for Trank Shaped : RZQ100~140C7, RZQS125·140C7V1B
Power supply ON
Initialize motorized valve
Initialize microcomputer
Crank case heater control *1
Preheating operation control
Remote controller
operation judgement
Operation mode
judgement
Cooling/Dry
Heating
Emergency
operation
Thermostat ON judgement
Starting control
4-way valve changeover
Compressor step control
Motorized valve PI control
PMV control
Low pressure protection control
High pressure protection control
Discharge pipe temperature protection control
Inverter current protection control
Inverter fin temperature protection control
Overall current protection control
Low outdoor temperature cooling control
Simulated operation
Normal control
Oil recovery
operation starting
judgement
Oil recovery
operation
Oil recovery
operation ending
judgement
Remote
control
operation OFF
judgement
Standby
judgement
Malfunction
stop
judgement
Thermostat OFF judgement
Thermostat OFF by <
∆
> Tr
Thermostat OFF by freeze-up
protection
Restart standby
A
B
B
A
Cooling/Dry
Emergency
Heating
Turn on the power to crankcase heater *1
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 ...