Design and Technical Manual

6. SYSTEM DESIGN
4) Vertical airow direction range control
In a concealed installation, change the setting to "Fixed" (02) to restrict the movement of the
upper air outlet so that the airow is only towards the horizontal direction.
(

... Factory setting)
Setting description Function number Setting value

Standard
23
00
(Setting prohibited) 01
Fixed (Concealed) 02
5) Static pressure
Select appropriate static pressure according to the installation conditions.
(

... Factory setting)
Setting description Function number Setting value
0 in.WG (0 Pa)
26
00
0.04 in.WG (10 Pa) 01
0.08 in.WG (20 Pa) 02
0.12 in.WG (30 Pa) 03
0.16 in.WG (40 Pa) 04
0.20 in.WG (50 Pa) 05
0.24 in.WG (60 Pa) 06
0.28 in.WG (70 Pa) 07
0.32 in.WG (80 Pa) 08
0.36 in.WG (90 Pa) 09

0.10 in.WG (25 Pa) [Standard] 31
Range of static pressure is different from one model to other.
Model name Range of static pressure
ARU7RLF
0 to 0.36 in.WG (0 to 90 Pa)
ARU9RLF
ARU12RLF
ARU18RLF
ARU24RLF 0 to 0.20 in.WG (0 to 50 Pa)
6) Room temperature control for cooling
Depending on the installed environment, correction of the room temperature sensor may be
required.
Select the appropriate control setting according to the installed environment.
(

... Factory setting)
Setting description Function number Setting value

Standard
30
00
Slightly lower control 01
Lower control 02
Higher control 03
7) Room temperature control for heating
Depending on the installed environment, correction of the room temperature sensor may be
required.
Select the appropriate control setting according to the installed environment.
(

... Factory setting)
Setting description Function number Setting value

Standard
31
00
Lower control 01
Slightly higher control 02
Higher control 03
- (06 - 80) -
SYSTEM DESIGN SYSTEM DESIGN