Haier AU052FPERA - Bridge Instruction

34
Note:
communication protocol between indoor and outdoor units
The new communication protocol is faster than the old communication and its control content is more than the old one.
The indoor PCB 0151800113, 0151800161, 0151800161B, 0151800227, 0151800244, 0010451751AF, 0151800141A,
0010451751AE and 151800141 are new communication protocol.
The indoor PCB 151800086 and 0010451181A are old communication protocol.
Old communication protocol indoor PCB can't connect with new communication protocol outdoor, so if this outdoor unit connect
with old communication protocol indoor, need set the dip switch BM2-6 to ON position.
CJ1:
Short it before power ON-- PCB check its function (used for factory production. Short it after power ON-- time short
function, 60 seconds become to 1 second.
CJ2: Reserved
2. bridge instruction
BM2 Denition Introduction
BM2-1
Cooling only or heat pump
selection
OFF Heat pump (default)
ON Cooling only
BM2_2
BM2_3
BM2_4
Outdoor model selection
ON OFF OFF AU04
ON OFF ON AU05
ON ON OFF AU06
BM2-5 Power supply selection
OFF Single phase
ON 3-phase
BM2-6 Communication protocol selection
OFF New communication protocol (default)
ON Old communication protocol
BM2-7
BM2-8
Start mode selection
BM2-7 BM2-8 Start mode selection
OFF OFF First open priority
OFF ON After opening priority
ON OFF
Cooling priority, any one indoor unit
runs in cooling mode, the outdoor unit
will run in cooling mode, the indoor
units running in heating mode will stop
ON ON
Cooling priority, any one indoor unit
runs in cooling mode, the outdoor unit
will run in cooling mode, the indoor
units running in heating mode will stop.