![background image](http://html1.mh-extra.com/html/daikin/fhq100buv1b-x-2/fhq100buv1b-x-2_service-manual_2459261055.webp)
General Functionality
SiBE28-804
44
Functional Description
1.9
Test Run Control
Purpose
When operating the RZQ(S) units for the first time after installation, the unit will - depending on
the selected operation mode - perform a test run operation first.
Situation 1
Cooling - first operation after installation in "Cooling mode"
Situation 2
Cooling - first operation after installation in "Test run mode"
Situation 3
Heating - first operation after installation in "Heating mode"
Situation 4
Heating - first operation after installation in "Test run mode"
Note:
When running in test run mode, the unit will sense on site installation parameters (e.g.:
failure to open stop valves,..) and indicate the applicable malfunction code if required.
If the remote controller shows E3, E4 or L8 as an error code, there is possibility that either
the stop valve is closed or the air flow outlet is obstructed.
Check the inter unit branch wiring connection (1-2-3 wiring) when the error code U4 or UF is
displayed on the remote controller.
When the error code U2 is displayed on the remote controller, check for voltage imbalance.
When the error code L4 is displayed on the remote controller, there is possibility that the air
flow passage is closed.
When there is no error code display, cooling operation continues without interruption.
(However, this control is once again performed after refrigerant is recovered by means of the
pump down switch and at the time of the first operation after the outdoor PC board
replacement.)
Cooling thermostat ON
Cooling operation in
"Test run mode" for 3
minutes
Normal cooling
operation
Cooling Operation by
Test run button
Cooling operation in
"Test run mode" for 3
minutes
Cooling operation in
forced thermostat ON.
Heating thermostat ON
Heating operation can
not be done.
Heating Operation by
Test run button
Heating operation in
forced thermostat ON.
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 ...