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HWE09120 GB
1) Unless otherwise specified, leave the switch to OFF where indicated by "-," which may be set to OFF for a reason.
2) A: Only the switch on either the OC or OS needs to be set for the setting to be effective on both units.
B: The switches on both the OC and OS need to be set to the same setting for the setting to be effective.
C: The setting is effective for the unit on which the setting is made.
3) The noise level is reduced by controlling the compressor frequency and outdoor fan rotation speed.
Setting of CN3D is required.
4) The table below shows the combination of SW2-9 and SW3-5 settings and the target evaporating temperature setting that corre-
sponds to each combination.
5) Refer to VII [2] Controlling the Outdoor Unit -7- Defrost Operation Control for details.(page 105)
Switch Function
Function according to switch setting Switch setting timing
Units that re-
quire switch
setting
Note.2
OFF ON OFF ON OC OS
SW3
1
Test run mode: en-
abled/disabled
SW3-2 disabled SW3-2 enabled Anytime after power on
A-
2
Test run mode: ON/
OFF
Stops all ICs
Sends a test-run
signal to all IC
After power on and when
SW3-1 is on.
A-
3
Defrost start tem-
perature Note 5
P72, P96
-10°C [14°F]
-5°C [23°F] Anytime after power on
BB
P120, P144
-8°C [18°F]
4
Defrost end tem-
perature Note 5
P72, P96
10°C [50°F]
5°C [41°F]
Anytime after power on (ex-
cept during defrost)
BB
P120, P144
7°C [45°F]
5
Target evaporating
temperature setting
Depends on the setting combination with
the SW2-9 setting (Note 4)
Anytime after power on
A-
6
Temperature unit
setting
°C °F Anytime after power on
CC
7
Heating perfor-
mance priority set-
ting (at low outside
temperature)
Normal control
Heating perfor-
mance priority mode
(at low outside tem-
perature)
-
A-
8- - - - --
9
Model setting
(To change the external
static pressure setting)
Outdoor standard
static pressure
Outdoor high static
pressure
Before being energized
CC
10
Model setting
(To change the external
static pressure setting)
High static pressure
60Pa
High static pressure
30Pa
Before being energized
CC
SW4
1
Enable/disable high
sensible temperature
operation
Normal operation mode
High sensible tempera-
ture operation mode
Before being energized
A-
2- - - - --
3
Refrigerant amount
adjustment
Normal operation
mode
Refrigerant amount
adjust mode
Anytime after being energized (ex-
cept during initial startup mode.
Automatically cancelled 60 min-
utes after compressor startup)
A-
4
Low-noise mode/
step demand
switching
Low-noise mode
Note 3
Step demand mode Before being energized
CC
5
Automatic cooling/heat-
ing switchover (IC with
the minimum address)
Normal operation
mode
Automatic cooling/
heating switchover
Before being energized
A-
6
Cumulative compres-
sor operation time data
deletion
Cumulative com-
pressor operation
time data is retained.
Cumulative com-
pressor operation
time data is deleted.
Anytime after power on
(when the unit is turned on)
CC
7- - - - --
8- - - - --
9- - - - --
10 - - - - - -
Switch
SW2-9
OFF ON
SW3-5 OFF 0°C [32°F] -4°C [25°F]
ON -2°C [28°F] -15°C [5°F]