-
160
-
4) Weekly
Timer
Each day, it is possible to set this timer’s operation up to 4 times (On timer, or Off timer).
5)
Possible joint use timer operation setting combinations
Simple Timer
Off Timer
On Timer
Weekly Timer
Simple Timer
×
×
Off Timer
×
×
On Timer
×
Weekly Timer
×
×
×
Note
(1)
: Possible,
×
: Not possible
(f) Hot start (Cold draft prevention during heating)
When heating operation starts, when the thermostat is reset, during a defrosting operation or when resetting a heating operation,
in order to prevent a cold draft, the indoor heat exchanger temperature (sensed by Th
I
-R1 and R2) control the indoor fan.
Heating start thermostat judgment
Normal state, set air flow
Indoor heat exchanger (˚C)
Indoor heat exchanger (˚C)
25
35
Lo
Fan
OFF
35
Fan
Lo
Set air flow
Indoor heat exchanger (˚C)
20
30
Fan
OFF
Set air flow
Indoor heat exchanger (˚C)
40
45
Fan
Lo
(1)
Set air flow
Set air flow
Heat exchanger temperature 35˚C or above, or 7 minutes passes
Heat exchanger temperature 35˚C or above, or 7 minutes passes
Compressor ON
Defrosting ends
Thermostat ON
Thermostat OFF
Defrosting starts
Compressor OFF
Notes (1) If J2/SW7-2 is open/OFF, fan keeps OFF in case the indoor heat exchanger temperature is lower than 40°C for 5 minutes at maximum and after that
changes to Lo.
Notes
(2) During Hot Start (the compressor is operating and the indoor fan is not operating at the set air fl ow), Heating preparation is displayed.
(g) FM control with the heating thermostat turned off (For cold draft prevention)
In order to prevent a cold draft while the heating thermostat is turned off, the indoor fan is controlled in response to the temperature
of the indoor heat exchanger as illustrated below. It should be noted that if jumper wire J2 (SW7-2) on the indoor PCB is open
(OFF), the indoor fan will stop in case the indoor heat exchanger temperature is lower than 40°C for fi rst 5 minutes at longest and
then it is turned into Lo speed regardless of the temperature.
Note (1) After the thermostat is reset, it returns to the hot start control.
(Setting air flow)
Indoor heat exchanger temperature (˚C)
40
45
Lo
