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 62.6~86F(17~30C).
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).
ΔT=T1-Ts
Running Mode
ΔT≥2F(1 ℃ )
Cooling Mode
-2°F(-1 ℃ )<ΔT<3(2°F1 ℃ )
Fan-only Mode
ΔT≤-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
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