SG-40MAHB-01: Service Manual
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
12
HEATING Mode
Indoor Fan Running Rules:
When the compressor is on, the indoor fan can be set to
HIGH
,
MEDIUM
,
LOW
,
AUTO
,
MUTE
. When the indoor unit coil
temperature is low, the anti-cold air function starts and the indoor fan
motor runs at a low speed and the speed cannot be changed. When the
temperature is lower than the setting value, the indoor fan motor stops.
When the indoor temp reaches the setting temperature, the compressor
stops and the indoor fan motor runs at the minimum speed or setting
speed. The anti-cold air function is valid. The indoor fan is controlled as
shown in Fig. 15.
Fig. 15 —Indoor Fan Running Rules
AUTO Fan Action in HEATING Mode
Fig. 16 — AUTO Fan Action in HEATING Mode
DEFROSTING Mode
The air conditioner enters the
DEFROSTING
mode according to
the T3 temperature value and the T3 temperature change value
range plus the compressor running time. During the
DEFROSTING
mode, the compressor continues to runs, the indoor and outdoor motors
stop, and the indoor unit defrost lamp illuminates and appears.
Evaporator Coil Temperature Protection
Fig. 17 —
Evaporator Coil Temperature Protection
When the evaporator temperature is higher than the setting protection
value, the compressor stops.
AUTO Mode
This mode can be chosen with the remote controller and the setting
temperature can be changed between 62.6
F(17
C)~86
F(30
C).
In the
AUTO
mode, the air conditioner chooses the
COOLING
,
HEATING
or
FAN
ONLY
mode according to
T (
T =T1-Ts).
Fig. 18 — AUTO Mode
The indoor fan runs under
AUTO
fan in the relevant mode. The
louver operates the same as in relevant mode. If the air conditioner
switches between the
HEATING
and
COOLING
mode, the compressor
stops for a certain period of time and then chooses the mode according to
T1-Ts. If the setting temperature is modified, the air conditioner chooses
the running function again.
DRYING Mode
Indoor Fan Speed is Fixed
Indoor fan speed is fixed at
BREEZE
and can not be changed. The
louver angle is the same as in the
COOLING
mode.
Low Indoor Room Temperature Protection
In the
DRYING
mode, if the room temperature is lower than 50
F
(10
C), the compressor stops and will not resume until the room
temperature exceeds 53.6
F (12
C).
Setting fan
speed
Actual fan speed
H
=H
H+(H+=H+G)
M(M=M)
M+(M+=M+Z)
L(L=L)
L+(L+=L+D)
H-
H-=H-G)
M-(M-=M-Z)
L-(L-=L-D)
T1-Td
L
H
M
