English 16
3. When including BS unit
[ PRECAUTIONS ]
1. A single switch can be used to supply power to units on the same system. However, branch switches and
branch circuit breakers must be selected carefully.
2. Do not ground the equipment on gas pipes, water pipes or lightning rods, or crossground with telephones.
Improper grounding could result in electric shock.
9. FIELD SETTINGS
(1) Make sure the service lids are closed on the indoor and outdoor units.
(2)
Field settings must be made from the remote controller and in accordance with installation conditions.
• Settings can be made by changing the “Mode No.”, “FIRST CODE NO.” and “SECOND CODE NO.”.
• The “Field Settings” included with the remote control lists the order of the settings and method of operation.
*Setting is made in all units in a group. To set for individual indoor units or to check the setting, use the mode
Nos. (with “2” in upper digit) in parentheses ( ).
9-1 SETTING AIR FILTER SIGN
• Remoto controllers are equiped with liquid crystal display air filter sighs to display the time to clean air
filters.
• Change the SECOND CODE NO. according to Table 3 depending on the amount of dirt or dust in the room.
(SECOND CODE NO. is factory set to “01” for air filter contamination-light)
Ta ble 3
9-2 SETTING AIR FLOWRATE INCREASE MODE
• It is possible to raise set air flow (HIGH and LOW) from the field. Change the SECOND CODE NO. as
shown in Table 4 to suit your needs.
(SECOND CODE NO. is factory set to “01” for Standard.)
Ta ble 4
Setting
Spacing time of display
air filter sign
Mode No. FIRST CODE NO. SECOND CODE NO.
Air filter
contamination-light
Approx. 200 hrs
10 (20) 0
01
Air filter
contamination-heavy
Approx. 100 hrs 02
Setting Mode No. FIRST CODE NO.
SECOND CODE NO.
Standard
13 (23) 0
01
A little increase 02
Increase 03
IN/D OUT/D
F
1 F2 F1 F2
IN/DOUT/D
F
1 F2 F1 F2
LN
P
1
P
2
LN
P
1
P
2
F
1
F
2
T
1
T
2
BS unit
No. 3
System
Outdoor unit
Power supply
220-240V
50Hz
or
220V
60Hz
Indoor
unit A
Fig. 25
Control box
Control box
IN/DOUT/D
F
1 F2 F1 F2
BS unit
Control box
01_EN_3P156215-10P.fm Page 16 Wednesday, April 2, 2008 11:47 AM
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