When Turning On Power First Time; When Turning On Power The Second Time And Subsequent; When An Indoor Unit Or Outdoor Unit Has Been Added, Or Indoor Or Outdoor Unit Pcb Has Been Changed - Daikin VRV IV-S RXTQ-TAVJU Series Service Manual

Test Operation
1.5

When Turning ON Power First Time

The unit cannot be run for up to 12 minutes to automatically set the master power and address (indoor-outdoor
address, etc.).
Status
Outdoor unit
Indoor unit
1.6 When Turning ON Power the Second Time and
Subsequent
Tap the RESET(BS5) button on the outdoor unit PCB. Operation becomes possible for about 2 minutes. If you do
not push the RESET button, the unit cannot be run for up to 10 minutes to automatically set master power.
Status
Outdoor unit
Indoor unit
1.7 When an Indoor Unit or Outdoor Unit has been Added, or
Indoor or Outdoor Unit PCB has been Changed
Be sure to push and hold the RESET button for 5 seconds. If not, the addition cannot be recognized. In this case,
the unit cannot be run for up to 12 minutes to automatically set the address (indoor-outdoor address, etc.)
Status
Outdoor unit
Indoor unit
79
Test lamp H2P .... Blinks
Can also be set during operation described above.
If ON button is pushed during operation described above, the
indicator blinks.
(Returns to normal when automatic setting is complete.)
Test lamp H2P .... Blinks
Can also be set during operation described above.
If ON button is pushed during operation described above, the operation lamp
lights but the compressor does not operate. (Returns to normal when
automatic setting is complete.)
Test lamp H2P .... ON
Can also be set during operation described above.
If ON button is pushed during operation described above, the
indicator blinks. (Returns to normal when automatic setting is complete.)
SiUS331604E
UH
error
UH U4
or error
Field Setting