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38MBR: Service Manual
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
14
Evaporator Coil Temperature Protection
Fig. 17 — Evaporator Coil Temperature Protection
Off
: Compressor stops
Decrease
: Decrease the running frequency to the lower level
Hold
: Keep the current frequency
Resume
: No limitation for frequency
Auto Mode
This mode can be chosen with remote controller and the setting
temperature can be changed between 62.6~86
F(17~30
C).
In
AUTO
mode, the machine either selects
COOLING
,
HEATING
or
FAN-Only
mode according to
T (
T=T1-Ts).
The indoor fan runs in the
AUTO
Fan mode of the relevant mode.
The louver operates same as in relevant mode. If the machine switches
mode between heating and cooling, the compressor will continue to stop
for 15 minutes and then choose a mode according to T1-Ts. If the setting
temperature is modified, the machine selects a running function once
again.
DRYING Mode
DRYING
mode works the same as
COOLING
mode in
BREEZE
speed. All protections are active and the same as that in the
COOLING
mode.
Auto-Restart Function
The indoor unit is equipped with an auto-restart function, which is carried
out through an auto-restart module. In case of a sudden power failure, the
module memorizes the setting conditions before the power failure. The
unit resumes the previous operation setting (not including sleep function)
automatically after 3 minutes when power returns.
POINT CHECK FUNCTION
Press the remote controller
LED DISPLAY
or
LED
or
MUTE
three
times, and then press
AIR DIRECTION
or
SWING
three times in ten
seconds (the buzzer rings for two seconds). The air conditioner enters the
information enquiry status.
The user can press the
LED DISPLAY
or
AIR DIRECTION
to check
the next or front item's information. When the air conditioner enters the
enquiry information status, it displays the code name in 2 seconds. Refer
to Table 11 for details.
Table 11 — Enquiry Information
When the air conditioner enters the information enquiry status, the
LED
displays the code value within 25 seconds (see Table 12 on page 15).
Δ
T=T1-Ts
Running Mode
Δ
T
≥
2F(1
℃
)
Cooling Mode
-2°F(-1
℃
)<
Δ
T<3(2°F1
℃
)
Fan-only Mode
Δ
T
≤
-1
℃
(-2°F)
Heating Mode
TEstop
T2
Resume
Off
Decrease
TEdown
TEH2
Hold
ENQUIRY
INFORMATION
DISPLAYING CODE
MEANING
T1
T1
T1 temp.
T2
T2
T2 temp.
T3
T3
T3 temp.
T4
T4
T4 temp.
T2B
Tb
T2B temp.
TP
TP
TP (T5) temp.
TH
TH
TH temp.
Targeted Frequency
FT
Targeted Frequency
Actual Frequency
Fr
Actual Frequency
Indoor Fan Speed
IF
Indoor Fan Speed
Outdoor Fan Speed
OF
Outdoor Fan Speed
EXV Opening Angle
LA
EXV Opening Angle
Compressor
Continuous
Running Time
CT
Compressor
Continuous
Running Time
Compressor
Stop Issues
ST
Compressor
Stop Issues