Trane A5HL5036A1000A - Page 11

A5HL5-SF-1A-EN
11
Setting Parameter Settings
The unit can be set to different engineering conditions
by changing the parameter settings. In the standby
state, press and hold the KEY1 button for 5 seconds
and release to enter the Engineering Parameter Setting
function menu. In any state, while in the lower menu,
press the KEY1 button to return to the upper menu.
LLoowweesstt OOuuttddoooorr AAmmbbiieenntt TTeemmppeerraattuurree SSeettttiinngg ffoorr
HHeeaattiinngg MMooddee::
While in the parameter setting menu under the state of
selection:
1. Press the KEY2 button to adjust the digital display
to S01.
2. Press the KEY3 button to adjust the parameter
menu.
3. Press the KEY2 button to adjust the parameter
value.
4. Press the KEY3 button to save the above section.
The parameters and their meanings are shown in the
following table.
Parameter Code Value Description
S01
0 The Heating mode cannot be started when the ambient temperature below -40 ° F.
(Default)
1 Heating cannot be started when below 41℉
2 Heating cannot be started when below 14℉
3 Heating cannot be started when below -4℉
4 Heating cannot be started when below -22℉
5 Heating cannot be started when below -40℉
TTiimmeedd DDeeffrroosstt SSeettttiinngg::
The defrost time can be adjusted according to the
actual installation ambient conditions.
While in the parameter setting menu under the state of
selection:
1. Press the KEY2 button to adjust the digital display
to S02.
2. Press the KEY3 button to adjust the parameter
menu.
3. Press the KEY2 button to adjust the parameter
value.
4. Press KEY3 button to save the above section.
The parameters and their meanings are shown in the
following table.
Parameter Code Value Description
S02
0
The compressor runs for 120 minutes accumulatively to perform one defrosting cycle
(Default).
1
The compressor runs for 40 minutes accumulatively to perform one defrosting cycle.
2
The compressor runs for 60 minutes accumulatively to perform one defrosting cycle.
3 The compressor runs for 80 minutes accumulatively to perform one defrosting cycle.
4 The compressor runs for 100 minutes accumulatively to perform one defrosting cycle.
5
Turn off the timing defrosting function.
AAnnttii--FFrreeeezziinngg PPrrootteeccttiioonn PPrreessssuurree SSeettttiinngg::
This function is mainly used to reduce the freezing risk
when the indoor unit is in cooling mode and the
outdoor or indoor ambient temperature is too low.
Since the pressure sensor is in the outdoor unit, the
protection value can be appropriately reduced to
improve the cooling effect in applications with long line
sets. If the indoor unit is freezing often, the protection
value can be appropriately increased.
While in the parameter setting menu under the state of
selection:
1. Press the KEY2 button to adjust the digital display
to S03.
2. Press the KEY3 button to adjust the parameter
menu.
3. Press the KEY2 button to adjust the parameter
value.
4. Press KEY3 button to save the above section.
The parameters and their meanings are shown in the
following table: