Service manual

14
Control modes
Control details
3-1. Hot adjust mode
3-2. Preheating exclusion mode
3-3. Thermostat OFF mode (When the compressor off by the thermoregulating)
3-4. Cool air prevention mode (Defrosting mode)
3-5. Fan speed up mode
3-1. Hot adjust mode
The fan controller becomes the stand by (hot adjust) mode for the following
conditions.
 When starting the HEAT operation
 When starting the compressor by the thermoregulating
 When the HEAT defrosting operation is released
3. Fan
Remarks
Fan speed change
notch. Refer to the
model function table.
A: Stand by (hot adjust) mode starts.
B: 5 minutes have passed since the condition A or the indoor Condenser/
Evaporator temperature turned 35 or more
C: 2 minutes have passed since the condition A.
(Terminating the stand by (hot adjust) mode)
This control is applied
for only
4-speed (+Auto) model.
3-2. Preheating exclusion mode
When the condition changes the auxiliary heater ON to OFF
(thermoregulating or operation stop, etc), the indoor fan operates in [Low]
mode for 1 minute.
A
CB
[Extra Low]
[Low]
Set fan speed by the remote controller
Hot adjust mode *1
3-3. Thermo OFF mode
When the compressor stops by the thermoregulating, etc., the indoor fan
operates in [Extra low].
This control is same for
the model without
auxiliary heater.
"DEFROST "will be
displayed on the
remote controller
during the defrost
operation.
3-5. Fan speed up mode
•When the control changes to over-rise prevention
The condition of over-rise prevention (Prohibit for auxiliary heater ON)
continues for 10 seconds or more and the set fan
speed is [Low] or
[Medium2], the fan speed changes to [Medium1].
•
The fan speed up mode is released by canceling the over-rise prevention
mode.
3-4. Cool air prevention mode (Heat defrosting mode)
After "hot adjust" mode is finished, the indoor fan will stop if the condition
mentioned below is detected. When receiving "DEFROST" from the
outdoor unit, the mode changes to defrosting mode.
Pipe temp. (Condenser/Evaporator) - Room temp. -3
*1 "STAND BY" will be
displayed during the
stand by (hot adjust)
mode.
Fan speed can be
changed by setting the
function of remote
controller.
By the remote controller setting (switch of 4 speeds+Auto or 4 speeds or 2
speeds)
Type
Fan speed notch
[Low] [Medium2] [Medium1] [High]
[Low] [High]
4 speeds
[Low] [Medium2] [Medium1] [High][Auto]
4 speeds+Auto
2 speeds