Panasonic S-26PF2U6 - Automatic Fan Speed (Indoor Unit)

2-52-4
2. Processes and functions
Fig. 4
INDOOR FAN
SPEED
L
H
MM
H
1923_M_S
ROOM TEMP.
(deg)
SET TEMP.
+3
+2
+1
H
M
: High
: Middle
L: Low
Chart Explanations and notes
When the fan speed changes, it keeps the speed step for at least 3 minutes, even if the
temperature changes to another speed step during the time.
Fig. 5
INDOOR FAN
SPEEDH
L
M
M
H
1924_M_S
ROOM TEMP.
(deg)
SET TEMP.
–2
–4
H
M
: High
: Middle
L: Low
Chart Explanations and notes
When the fan speed changes, it keeps the speed step for at least 1 minute, even if the
temperature changes to another speed step during the time.
2-3.Automatic Fan Speed (Indoor Unit)
By pressing the FAN SPEED button on the remote controller, the fan speed can be set at one of
four steps: AUTO., HI., MED., or LO. When set at AUTO. the indoor unit fan speed will be
automatically adjusted to the room temperature as the two charts shown below.
(A) Cooling
(B) Heating
Fig. 3
92
88
81
77
50
SET
FAN
SPEED
AUTO OR H
M
LLL LL/OFF LL LL L
LL LL/OFF LL LM M
LL LL/OFF LL LM H
MAX. 6 MINUTES
“STANDBY”
INDICATOR
79
75
72
68
50
75
72
68
64
46
INDOOR UNIT
TypeF2,T2 U2
U1,K1,T1,F1,K2
COIL TEMP.
E2 (°F)
LL= Very low speed
L= Low speed
M= Medium speed
H= High speed
“STANDBY” APPEARS
1135_THS_I
Chart Summary and Explanations
The main idea of this chart is to show that the indoor fan speed increases and gets closer to
the set fan speed as the coil temperature E2 rises.
The indoor unit's coil temperature is taken from sensor E2 located in the middle of the indoor
heat exchange coil.
The dotted line shows that the indoor fan motor is OFF. When the temperature at sensor E2
falls below 50 ˚F, the indoor fan motor stops running.
2-2. Cold Draft Prevention (Heating Cycle)
The cold draft prevention function controls indoor fan speed so a strong draft of cold air will
not blow out before the indoor heat exchange coils have warmed up.
STANDBY shows on the remote controller when the indoor fan speed is LL (very low)
or OFF. This condition occurs in the following 3 cases:
•During Thermo OFF (refer to 2-1 B. Room Temperature Control, Heating)
•During the defrosting operation (refer to the section "Defrost Control" on page 2-8)
•Until either the coil temperature E2 reaches 72°F(Type F2, T2) or 68°F(Type U2)
or 81°F(Type U1,K1,T1,F1, K2) or when a maximum of 6 minutes have passed.
The indoor fan motor operates in L instead of LL for 3 seconds as it starts to give the
fan an initial boost.
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