R410A DC Inverter Series
Carrier service manual
160
Troubleshooting
2.3 Dial codes definition
S1: starting up time setting
Starting time is set about 10 minutes
Starting time is set about 12 minutes(default)
S2: night silent time selection
Night time selection is
6h/10h(default)
Night time selection is
8h/10h
Night time selection is
6h/12h
Night time selection is
8h/12h
S3: silent mode selection
Night silent mode
(default the factory set)
Silent mode
Super silent mode
None silent mode
S4: ODU static pressure selection
Static pressure mode is
0MPa (default)
Static pressure mode
is low
pressure
(reserve position, use
for customized unit)
Static pressure mode is
medium pressure (reserve
position, use for
customized unit)
Static pressure mode is
high pressure (reserve
position, use for
customized unit)
S5: locking modes selection
Heating priority
mode(default)
Cooling priority
mode
VIP priority or Vote
priority
Only respond to the
heating mode
Only respond to the
cooling mode
S6: addressing type selection
Automatic search addressing
Nonautomatic search address
(the communication way of the
original digital indoor units)
(default)
Clean the indoor unit addresses
(effective to automatic searching
new
digital indoor units)
S7 definition
Without setting the numbers of indoor
units(default)
Need to set the numbers of indoor units
S8 : reserved
1 2 3
S7
ON
1 2 3
S7
ON