Indoor Fan Motor Control - Toshiba RAS-M10U2MUVG-E Service Manual

Item
2. Indoor fan 1) Operation with (HH), (H+), (H), (L+), (L) or [AUTO] mode is carried out by the
motor command from the remote controller.
control 2) When the air speed mode [AUTO] is selected, the air speed varies by the
difference between Ta and Ts.
<COOL>
• Controlling operation in case when thermostat of remote controller works is
same as a case when thermostat of the indoor unit works.
• If the air speed has been changed once, it cannot be changed for 3 minutes.
However when the air volume is changed, the air speed also changed.
• When cooling operation has started, follow the downward arrow for the air
speed.
• If the temperature is just on the boundary, the air speed does not change.
• Mode in the parentheses indicates one in AUTO(cooling) operation.
<HEAT>
(–0.5)
(+0.5)
(+1.0)
(+1.5)
(+2.0)
Value in the parentheses indicates one when thermostat of the remote
controller works.
Value without parentheses indicates one when thermostat of the indoor unit works.
• If the air speed has been changed once, cannot be changed for 1 minute.
However when the air volume is changed, the air speed also changes.
• When heating operation has started, follow the upward arrow for the air speed.
• If the temperature is just on the boundary, the air speed does not change.
• Mode in the parentheses indicates one in AUTO(heating) operation.
• If Tc ≥ 60˚C, the air speed increases by 1 step.
Operation flow and applicable data, etc.
Ta (˚C)
+3.0
HH
+2.5
(HH)
+2.0
H+ (HH)
+1.5
H (HH)
+1.0
L+ (H+)
+0.5
L (H)
Tsc
L (H)
–0.5
L (L+)
Ta (˚C)
L (L+)
–1.0
L+ (H)
Tsh
H (H+)
+1.0
H+
(HH)
+2.0
HH
+3.0
(HH)
+4.0
A
B
C
D
E
F
G
E
D
C
B
A
– 30 –
Description
HH > H+ > H > L+ > L
> LL
Tc: Indoor heat
exchanger sensor
temperature