Installation manual

[ VII Control ]
- 128 -
HWE10050 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
A setting of CN3D is required.(page 25)
4) Refer to "VII [2] Controlling the Outdoor Unit" -7- Defrost Operation Control.(page 136)
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 temper-
ature
(Note 4)
<P200 - P300>
<EP200>
-10°C [14°F]
-5°C [23°F] Anytime after power on
BB
<P350 - P400>
<EP250 - EP300>
-8°C [18°F]
4
Defrost end temper-
ature
(Note 4)
<P200 - P300>
<EP200>
10°C [50°F]
<P200 - P300>
<EP200>
15°C [59°F]
Anytime after power on
(except during defrost op-
eration)
BB
<P350 - P400>
<EP250 - EP300>
7°C [45°F]
<P350 - P400>
<EP250 - EP300>
12°C [54°F]
5- - - - --
6
Temperature unit
setting
Centigrade Fahrenheit Anytime after power on
CC
7
Heating mode selec-
tion at low outside
temperature
Performance priori-
ty mode
COP priority mode Anytime after power on
A-
8- - - - --
9
Model setting
(High static pressure
setting (outdoor))
Outdoor standard
static pressure
Outdoor high static
pressure
Before being energized
CC
10
Model setting
(High static pressure
setting (outdoor))
High static pressure
60Pa
High static pressure
30Pa
Before being energized
CC
SW4
1
Enable/disenable high
sensible operation
Normal operation
mode
High sensible heat
operation mode
Before being energized
A-
2- - - - --
3
Refrigerant amount
adjustment
Normal operation
mode
Refrigerant amount
adjust mode
Anytime after being ener-
gized (except during initial
startup mode. Automatically
cancelled 90 minutes after
compressor startup)
A-
4
Low-noise mode/
step demand switch-
ing
Low-noise mode
(Note 3)
Step demand mode Before being energized
CC
5- - - - --
6
Cumulative com-
pressor 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 - - - - - -