Mitsubishi Electric PUHY-P72THMU-A Service Handbook page 99

[ VII Control ]
Switch Function
Test run mode: en-
1
abled/disabled
Test run mode: ON/
2
OFF
Defrost start tem-
3
perature Note 5
Defrost end tem-
4
perature Note 5
Target evaporation
SW3
5
temperature setting
Temperature unit
6
setting
Target condensing
7
temperature setting
for heating
8 -
9 Model setting
10 Model setting
Enable/disable high
1
sensible tempera-
ture operation
2 -
Refrigerant amount
3
adjustment
Low-noise mode/
4
step demand
switching
SW4
Automatic cooling/heat-
5
ing switchover (IC with
the minimum address)
Cumulative com-
6 pressor operation
time data deletion
7 -
8 -
9 -
10 -
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 evaporation temperature setting that
corresponds to each combination.
Switch
SW3-5 OFF
ON
5) Refer to VII [2] Controlling the Outdoor Unit -7- Defrost Operation Control for details.(page 99)
HWE08040
Function according to switch setting
OFF
SW3-2 disabled SW3-2 enabled
Sends a test-run
Stops all ICs
signal to all IC
-10°C [14°F] -5°C [23°F]
P72, P96
10°C [50°F]
5°C [41°F]
P120
7°C [45°F]
Depends on the setting combination with
the SW2-9 setting (Note 4)
°C °F
49°C [120°F] 53°C [127°F]
-
Outdoor standard Outdoor high static
static pressure pressure
High static pressure High static pressure
60Pa 30Pa
High sensible tem-
Normal operation
perature operation
mode
mode
-
Normal operation Refrigerant amount
mode adjust mode
Low-noise mode
Step demand mode Before being energized
Note 3
Normal operation Automatic cooling/
mode heating switchover
Cumulative com- Cumulative com-
pressor operation pressor operation
time data is retained. time data is deleted.
-
-
-
-
SW2-9
OFF ON
0°C [32°F] -4°C [25°F]
-2°C [28°F] -6°C [21°F]
- 90 -
Switch setting timing
ON OFF
Anytime after power on
After power on and when
SW3-1 is on.
Anytime after power on
Anytime after power on (ex-
cept during defrost)
Anytime after power on
Anytime after power on
-
- -
Before being energized
Before being energized
Before being energized
- -
Anytime after being energized (ex-
cept during initial startup mode.
Automatically cancelled 60 min-
utes after compressor startup)
Before being energized
Anytime after power on
(when the unit is turned on)
- -
- -
- -
- -
Units that
require
switch set-
ting
Note.2
ON OC OS
A -
A -
B B
B B
A -
C C
A -
- -
C C
C C
A -
- -
A -
C C
A -
C C
- -
- -
- -
- -
GB