Step 14 Cool And Heat Modes Operation Test - Samsung AJ020MCS3CH Installation Manual

Ampere Limit Setting & Changing Procedure
Ampere Switch
23A
(OFF)
20A
(OFF)
18A
(OFF)
16A
(OFF)
WARNING
• Do not adjust the "Ampere Limit Switch(DIP Switch)", if
it's not necessary : before modifying it, evaluate the total
number of electric and electronics loads consumption
and use "Ampere limits switch(DIP Switch)" just as
emergency solution or in case the system is anyway
oversized compared to real thermal load needed.
• "Ampere Limit Switch(DIP Switch)" is initially set to the
default value (table below).
• "Ampere Limit Switch(DIP Switch)" is on the PCB of
outdoor unit.
• Contact the authorized service technician or dealer for
setting and changing the "Ampere Limit Switch(DIP
Switch)".
• Before changing the "Ampere Limit Switch(DIP Switch)",
turn off the main power of the system.
Switch Selection
3 4
ON ON
ON OFF
OFF ON
OFF OFF
Step 14 Cool and Heat modes
operation test
After installing the outdoor and indoor units, test the Cool
and Heat modes.
• When you test the Cool mode, set the set temperature
of the indoor unit to the lowest one. And when you test
the Heat mode, set the set temperature of the indoor
unit to the highest one.
• Check if each indoor unit operates normally and
then also check if all indoor units operate normally
together.
Check both of the Cool and Heat modes.
• About 20 minutes after the air conditioner is started,
check the temperature difference between the air
inlet and outlet of the indoor unit. If the temperature
difference is larger than the value given in the
following table, the operation is normal.
Mode
Cool
Heat
CAUTION
• If the outdoor unit is turned off and then immediately
turned on again, the compressor does not operate for
about 3 minutes.
• During the Cool mode, frost may temporarily develop
on valves and other parts.
Temperature
27
English