Lennox VHA 30, Руководство по установке, эксплуатации и техническому обслуживанию, Страница: 13 / 46

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6. Hot-Start Control
• The indoor fan stops until the evaporator piping temperature will be reached to 28°C.
• During heating operation, if piping temperatures fall below 26°C fan stops.
• The operation diagram is as following.
7. Defrost Control
• Defrost operation is controlled by timer and sensing temperature of outdoor pipe.
• The first defrost starts only when the outdoor pipe temperature falls below -6°C after 60 minutes passed from
starting of heating operation and more than.
• Defrost ends after 12 minutes pass from starting of defrost operation or when the outdoor pipe temperature rises
over 12°C even if before 12 minutes.
• The second defrost starts only when the outdoor pipe temperature falls below -6°C after 60 minutes pass from
ending of the first defrost and more than.
INDOOR PIPE
TEMP.
INDOOR FAN
SPEED
Selecting
fan speed
OFF OFF LOW
1min
Maximum
COMPRESSOR ON
28
°
C
26
°
C
More than 60 minutes of
heating operation
More than 10 min.
running of compressor
Outdoor Pipe Temp.
Indoor Fan
Compressor
4-Way Valve
ON
ON
ON
ON
OFF
ON
OFF
HOT-
START
ON
ON OFF OFF ON
12
°
C
(Defrost OFF)
-6
°
C
(Defrost ON)
Within
12minutes
Defrost
Defrost
More than 60 minutes of
heating operation
More than 10 min.
running of compressor