18
English
10-1 Settings for external static pressure
•
Make settings in either method (a) or method (b).
(a) Make settings with Air volume automatic adjust-
ment function.
“Air volume automatic adjustment” function: The air volume
is adjusted to the rated air volume automatically.
CAUTION
•
Be sure to check that the external static pressure is within
the specification range before making settings. The external
static pressure will not be automatically adjusted and air
volume insufficiency or water leakage may result if the
external static pressure is outside the range. (Refer to the
technical document for the setting range of external static
pressure.)
(1)
Check that the electrical wiring and duct work have been
completed.
(If the closing damper is set midway, be sure to check that
the damper is opened. Furthermore, check that the air
passage on the suction side is provided with an air filter
(field supply)).
(2)
If air conditioner has more than one discharge and suc-
tion, be sure to make adjustments so that the air volume
ratio of each discharge and the corresponding suction
will conform to the designed air volume ratio.
In that case, set the operating mode to “Fan”. (In the case
of changing the air volume, press the fan speed button on
the remote controller and change the current selection to
“High”, “Medium”, or “Low”.)
(3)
Make settings to adjust the air volume automatically.
After setting the operating mode to “Fan”, set the air
conditioner to field setting mode with the operation of the
air conditioner stopped. Select Mode No. [21] (11 in the
case of batch settings), select FIRST CODE No. “7”, and
set the SECOND CODE No. to “03”.
Return to the “Basic screen” (“Normal mode” if a wireless
remote controller is used), and press the ON/OFF button.
The operation lamp is lit, and the indoor unit will go into
fan operation for air volume automatic adjustments (at
which time, do not adjust the opening of the discharge or
suction). The air volume adjustments will automatically
terminate approximately 1 to 15 minutes after the indoor
unit comes into operation, and the operation lamp will be
OFF and the indoor unit will come to a stop.
Table 7
Mode No.
FIRST
CODE
No.
Setting
content
SECOND CODE No.
01
02
03
11 (21)
7
Air volume
adjust-
ment
OFF
Air volume
adjust-
ment
completion
Air volume
adjust-
ment start
(4)
After the air conditioner comes to a stop, be sure to
check with Mode No. [21] per indoor unit that the above
SECOND CODE No. is “02”. If the operation of the air
conditioner does not stop automatically or the SECOND
CODE No. is not set to “02”, repeat the setting procedure
from (3).
CAUTION
•
If airflow pathway changes, such as duct and discharge
changes, are made after air volume adjustments, be sure to
make “Air volume automatic adjustment” again.
•
If airflow pathway changes, such as duct and discharge
changes, are made after
11. TEST OPERATION
or air
conditioner relocation, contact your dealer.
(b) Select external static pressure with the remote controller.
Check with Mode No. [21] per indoor unit that the SECOND
CODE No. for the above “Air volume adjustment” is set to
“01” (OFF). (The SECOND CODE No. is factory set to “01”
(OFF).)
Change the SECOND CODE No. by referring to the table
below according to the external static pressure of the duct
to be connected.
Table 8
In case of 15-48 type
External static pressure
Mode No.
FIRST
CODE No.
SECOND
CODE No.
0.20 inWG (50 Pa)
13(23)
6
02
0.24 inWG (60 Pa)
03
0.28 inWG (70 Pa)
04
0.32 inWG (80 Pa)
05
0.36 inWG (90 Pa)
06
0.40 inWG (100 Pa)
07
0.44 inWG (110 Pa)
08
0.48 inWG (120 Pa)
09
0.52 inWG (130 Pa)
10
0.56 inWG (140 Pa)
11
0.60 inWG (150 Pa)
12
0.64 inWG (160 Pa)
13
0.72 inWG (180 Pa)
14
0.80 inWG (200 Pa)
15
In case of 54 type
External static pressure
Mode No.
FIRST
CODE No.
SECOND
CODE No.
0.20 inWG (50 Pa)
13(23)
6
02
0.24 inWG (60 Pa)
03
0.28 inWG (70 Pa)
04
0.32 inWG (80 Pa)
05
0.36 inWG (90 Pa)
06
0.40 inWG (100 Pa)
07
0.44 inWG (110 Pa)
08
0.48 inWG (120 Pa)
09
0.52 inWG (130 Pa)
10
0.56 inWG (140 Pa)
11
10-2 SETTING WHEN AN OPTIONAL ACCESSORY
IS ATTACHED
•
For setting when attaching an optional accessory, refer to
the installation manual attached to the optional accessory.
10-3 SETTING FAN SPEED DURING THERMOSTAT
OFF
•
Set the fan speed according to the using environment after
consultation with your customer.
•
When the fan speed is changed, explain the set fan speed
to your customer.
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