Bridge Instruction - Haier AU042FPERA Service Manual

BM2
Cooling only or heat pump
BM2-1
selection
BM2_2
BM2_3 Outdoor model selection
BM2_4
BM2-5 Power supply selection
BM2-6 Communication protocol selection
BM2-7
Start mode selection
BM2-8
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.

2. bridge instruction

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
Definition
OFF
ON
ON
ON
ON
Introduction
Heat pump (default)
Cooling only
OFF OFF
OFF ON
ON OFF
OFF Single phase
ON 3-phase
OFF New communication protocol (default)
ON Old communication protocol
BM2-7 BM2-8 Start mode selection
OFF OFF First open priority
OFF ON After opening priority
Cooling priority, any one indoor unit
runs in cooling mode, the outdoor unit
ON OFF
will run in cooling mode, the indoor
units running in heating mode will stop
Cooling priority, any one indoor unit
runs in cooling mode, the outdoor unit
ON ON
will run in cooling mode, the indoor
units running in heating mode will stop.
34
AU04
AU05
AU06