Service manual

4. HEAT operation
(1) Press POWER button
POWER lamp on the indoor unit tums on with a beep tone.
(2) Select HEAT mode.
DEFROST lamp on the unit lights during the cold air prevention control.
(3) Press SET TEMP. button to select the desired temperature.
The setting range is
59 - 89F.
"I FEEL CONTROL" button are not available.
(4) Indoor fan speed control, hight pressure protection, defrosting, heater control are same as HEAT mode of "I FEEL
CONTROL".
5. FAN operation MS-O9DW
(1) Press POWER ON/OFF button.
(2) Select FAN mode.
(3) Press SET TEMP. button to select the desired temperature.
The indoor fan stops when room temperature is lower than the set temp.
(4) Select the desired fan speed.
Followings are the fan speed in AUTO.
Room temp. minus set temp.
: more than 4 - 7 deg. --.HI
Room temp. minus set temp.
: 2 -- 7 deg:.-.......--..-.---.-.--- MED
Room temp. minus set temp.
: -2 -- 3 deg....-........--...-..- LO
Room temp. minus set temp.
: less than -2 - 0 deg. --..STOP
Only indoor fan operates.
Outdoor unit does not operate.
6. TIMER
1. AUTO STOP operation
AUTO STOP mode has "SOFT SLEEP" citcuit which provides
--
comfortalbe temperature control for sleeping.
(1) Select the TIMER CONTROL to AUTO STOP.
(2) Set the time. Time setting is 1 hour unit for 12 hours
(3) "SOFT SLEEP" circuit operates in COOL and HEAT mobe. By this
circuit, system operates at the set temp. for the first 1 hour. Then,
in COOL mode the set temp. raises
by 1 deg. haw- hourly to 2 deg.
range and
in heat mode the set temp. falls by 1 deg. half-hourly to
4 deg. range.
In
"I FEEL CONTROL" and DRY mode, the circuit does not operate.
2. AUTO START operation
(1) Select the TIMER CONTROL button to AUTO START.
(2) Set the time. Time setting is 1 hour unit for 12 hours.
13) In HEAT mode, warming up circuit operates.
NOTE TIMER setting will be canceled by power failure
Breaker Functioning.
7. AUTO VANE adjustment MSH-12DN
MSH-15DN
(1) The vane circuit / Auto vane direction
position '2, 60' 90 :
The vane motor circuit
Auto vane direction