Service Manual

SiUS181631EA Field Settings
Test Operation and Field Settings 127
Setting Mode 2
The numbers in the No. column represent the number of times to press SET (BS2)
button.
No. Setting item Description
1
Cool/heat unified
address
Sets address for cool/heat unified operation.
2
Low noise/demand
address
Address for low noise/demand operation
3
Test operation
settings
Used to conduct test operation without making changes to
the PCB and replacing the refrigerant, after the completion
of maintenance.
5
Indoor unit forced
fan H
Allows forced operation of indoor unit fan while unit is
stopped. (H tap)
6
Indoor unit forced
operation
Allows forced operation of indoor unit.
8 Te setting Target evaporation temperature for cooling
9 Tc setting Target condensation temperature for heating
10
Defrost changeover
setting
Changes the temperature condition for defrost and sets to
quick defrost or slow defrost.
12
External low noise
setting/Demand
setting
Reception of external low noise or demand signal
13 AIRNET address Set address for AIRNET.
16
Setting of hot water
heater
Make this setting to conduct heating operation with hot
water heater.
20
Additional refrigerant
charge operation
setting
Carries out additional refrigerant charge operation.
21
Refrigerant
recovery/vacuuming
mode setting
Sets to refrigerant recovery or vacuuming mode.
22
Night-time low noise
setting
Sets automatic nighttime low noise operation in a simple
way.
The operating time is based on Starting Set and Ending Set.
25
Setting of low noise
level
Sets low noise level when the low noise signal is received.
26
Night-time low noise
operation start
setting
Sets starting time of nighttime low noise operation.
(Night-time low noise setting is also required.)
27
Night-time low noise
operation end
setting
Sets ending time of nighttime low noise operation.
(Night-time low noise setting is also required.)
28
Power transistor
check mode
∗
Check after
disconnection of
compressor wires
Used for trouble diagnosis of DC compressor. Since the
waveform of inverter is output without wiring to the
compressor, it is convenient to probe whether the trouble
comes from the compressor or PCB.
29
Capacity
precedence setting
If the capacity control is required, the low noise control is
automatically released by this setting during carrying out low
noise operation and nighttime low noise operation.
30 Demand setting 1
Changes target value of power consumption when demand
control 1 is received.
32
Constant demand
setting
Enables demand control 1 without external input. (Effective
to prevent a problem that circuit breaker of small capacity is
shut down due to large load.)
Selection of setting items
Selection of setting conditions
Press MODE (BS1) button for 5
seconds and enter the setting mode
2.
Press SET (BS2) button and select
a setting item according to the LED
pattern shown in the table on the
right.
↓
Press RETURN (BS3) button and
decide the item. (The present setting
condition is shown.)
Press RETURN (BS3) button and
return to the initial status of setting
mode 2.
∗ If you become unsure of how to
proceed, press MODE (BS1) button
and return to the setting mode 1.
Press SET (BS2) button and select
to the setting condition you want.
↓
Press RETURN (BS3) button and
decide the condition.