Service manual

Field Setting SiUS28-902_a
57 Test Operation
No. Setting item Description
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
21
Refrigerant
recovery /
vacuuming mode
setting
Sets to refrigerant recovery / 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”.
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.)
29
Capacity
precedence setting
If the capacity control is required, the low noise control is
automatically activated by this setting.
30 Demand setting 1
Changes target value of power consumption when
demand control 1 is input.
32
Normal demand
setting
Normally enables demand control 1 without external
input. Effective to prevent a problem that circuit breaker
of of small capacity is shut down due to large load.
b. “Setting mode 2”
<Selection of setting items>
<Selection of setting conditions>
Push and hold the MODE button
(BS1) for 5 seconds and set to
“Setting mode 2”.
Push the SET button (BS2) and set
the LED display to a setting item
shown in the table on the right.
¯
Push the RETURN button (BS3) and
decide on the item. (The present
setting condition is blinking.)
Push the SET button (BS2) and set
to the setting condition you want.
¯
Push the RETURN button (BS3) and
decide the condition.
Push the RETURN button (BS3) and
set to the initial status of “Setting
mode 2”.
* If you become unsure of how to
proceed, push the MODE button
(BS1) and return to setting mode 1.