Mitsubishi Electric PUHY-P250YJM-A, Service Manual

Page: 99 / 272

[
VIII
Control ]
- 90 -
HWE10190 GB
(2) Dipswitches (Fresh Air Intake type)
1) SW1,3,7,8
1) The setting timings for the dipswitches 1 and 3 is when the units are stopped (remote controller is switched off). Power reset
is not required.
2) The settings in the shaded areas indicate factory settings.
Switch Function
Function according to switch setting
Switch setting
timing
Notes
OFF ON OFF ON
SW1
1
Room temperature detec-
tion position
Indoor unit return air
Built-in sensor on the re-
mote controller
2
Filter sign
When the unit is
stopped (remote
controller is
switched off)
3
4 - - -
5 Remote display option Fan output Thermo-ON signal
6 - - -
7 Forced heating operation Disabled Enabled
When this switch is set to ON,
units are forced to operate in
the heating mode when the
return air dry temperature is at
or below 5°C[41°F].
8 - - -
9
Automatic recovery after
power failure
Disabled Enabled
Set these switches to OFF
when SWC is set to ON.
10 Power reset Disabled Enabled
SW3
1 Model setting Heat pump Cooling-only
2 Capacity code
Refer to the table on the setting combination with
SW2.
3 Forced Thermo-ON Disabled Forced Thermo-ON
Return air temp. and preset
temp. are fixed.
4
Indoor unit fan operation
during defrost cycle
OFF ON
5 - - -
6 Heat dissipation 1 min. (heating only)
3 min. 5 sec. (regardless
of the operation mode)
7
Automatic LEV value con-
version function
Not available Available
8
Negative 4°C [7.2°F] off-
set (heating)
Enabled Disabled
Set this switch to ON (dis-
abled) on the floor-standing
models.
9 - - -
Factory settings for these
switches depend on the unit
capacity. Refer to section 2). 10 - - -
SW7
1 - - -
2
Temp. value used to con-
trol indoor temp.
Return air temp. Supply air temp.
When indoor and
outdoor units are
switched off
3 - - -
4 - - -
When the unit is
stopped (remote
controller is
switched off)
SW8
1 - - -
2 - - -
3 - - -
F i l t e r s i g n 1 0 0 h
O F F
O F F
S W 1 - 2
S W 1 - 3
O N
O F F
O F F
O N
O N
O N
1 2 5 0 h N / A 2 5 0 0 h
P 3 0 0 , P 6 0 0
O N
O F F
S W 1 - 2
S W 1 - 3
O F F
O N
P 9 0 0 Factory setting
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