Sharp AH-PG21 Service Manual page 9

4. TEST
If the "AUX" button on the unit is pressed for 5 seconds or more
during operation, cool test operation starts. The operation LED (red)
flickers during test run.
To put the system in the heating test run mode, start the cooling
operation and select the heating mode on the remote control. In cool
and heat mode continuous compressor on operation is performed. In
dry mode the operation is in dehumidifiying zone. In fan only mode the
indoor fan motor runs continusly.
5. TIMER
5.1. ON/OFF Timer
When the unit operates during one hour after the OFF-time is set, ther-
mostart setting is automatically shifted (
operation and dry operation). When the ON-timer is set in cool
operation, operation starts before 0 to 30 minutes(depends on the
room temperature) so that preset temperature is obtaind at set time.
5.2. hour timer
When ONE-HOUR timer is set, the unit turns off automatically afte
one hour. The one hour timer operation has priority over other time
operation, such as the TIMER ON and TIMER OFF. If the
ONE-HOUR TIMER button is pressed again during operation, the unit
will operate additionally for another one hour.
AUTOMATIC AIR CONDITIONING
When automatic air conditioning is selected, the operation mode and
preset temperature are set automatically according to the room
temperature on starting operation.
Room temperature Operation Mode
at operation start
Above 28 C
°
26 C > 28 C
° °
24 C > 26 C
° °
Below 24 C
°
When DRY mode is selected by the micro computer with AUTO
operation, the fan speed lamps on the indoor unit panel will indicate
identically with the fan speed symbols on the remote control dispaly,
as the FAN speed setting is changed accordingly. Despite,as the FAN
speed setting is changed accordingly. Despite, the actual fan speed
will not change, as it is determined autometically by the micro computer.
AUTOMATIC FAN SPEED
When the automatic fan speed is selected in cool operation, the fan
speed is automatically changed by the thermostat lines C1 to C3 in
cool operation.
Preset Temperature
COOL
DRY Room temperature at
operation start
OUTPUTS IN EACH OPERATION MODE
Mode
Cooling
O
O
Circulat-
ing
U
Cooling
} Dehu-
midiflying
o
Circulat-
ing
in
POWER ON START
If the connecting wire "POWER ON" (JP99) is cut on the PWB
ass'y, when the power is supplied by turning on a circuit breaker,
the air conditioner automatically starts of operation in "AUTO".
(Refer to Printed Wiring Board.)
r
AUTO RESTART
11.1. When JP5 is ON
Power failuer occurs during operation, the unit will restart in the
same operation mode as before recovery.
11.2. When JP5 is OFF
Auto restart function is not available.
26 C
°
25 C
°
24 C
°
8
Outdoor Indoor
Compressor
Fan Motor Fan Motor
ON ON
OFF OFF
ON ON L/UL
ON ON UL/D
OFF OFF D/OFF
Valve Coil
ON OFF
ON OFF
OFF
OFF
OFF