Filter
Top Products
II - 4
SM830082
1
2
3
4
Section
5
2. Processes and functions
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 2-10 Defrosting Control, Heating)
• Until either the coil temperature E2 reaches 81°F or when a maximum of 6 minutes
has past.
❑ The indoor fan motor operates in L instead of LL for 3 seconds as it starts to give
the fan an initial boost.
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.
Fig. 3
92
88
81
77
50
SET
FAN
SPEED
AUTO OR H
M
L LL LL/OFF LL L L L
LL LL/OFF LL L M M
LL LL/OFF LL L M H
MAX. 6 MINUTES
“STANDBY”
INDICATOR
INDOOR UNIT
COIL TEMP.
E2 (°F)
LL= Very low speed
L= Low speed
M= Medium speed
H= High speed
“STANDBY” APPEARS
1135_THS_I