Step 4.3 Performing Final Check And Trial Operation - Samsung AR**HS Installation Manual

Step 4.3 Performing final check and
trial operation
Check the following:
1
• Strength of the installation site
• Tightness of pipe connection to detect gas leak
• Electric wiring connection
• Heat-resistant insulation of the pipe
• Drainage
• Grounding conductor connection
• Correct operation (Take the following steps.)
2 Press the (Power) button on the remote control to
check the following:
• The indicator on the indoor unit lights up.
• The airflow blade opens and the fan gears up for
operation.
3 Press the (Mode) button to select Cool or Heat
mode. Then take the following sub-steps:
• In Cool mode, use the Temperature button to set
the set temperature to 16 °C.
• In Heat mode, use the Temperature button to set
the set temperature to 30 °C.
• Check whether, approximately 3 to 5 minutes
later, the outdoor unit starts, and a cool or warm
air blows out.
• After 12 minutes of stationary condition, check
the indoor unit air treatment.
4 Press the (Air swing) button to check whether the
airflow blades work properly.
5 Press the (Power) button to stop the trial operation.
Pumping down refrigerant
Pump-down is an operation intended to collect all the
system refrigerant in the outdoor unit. This operation must
be carried out before disconnecting the refrigerant tubing
in order to avoid refrigerant loss to the atmosphere.
1 Shut off the liquid valve with the Allen wrench.
2 Turn on the air conditioner in cooling with fan
operating at high velocity. (Compressor will
immediately start, provided 3 minutes have elapsed
since the last stop.)
After 2 minutes of operation, shut the suction valve
3
with the same wrench.
A3050_EU_Best model_IM_DB68-06152A-00_EN.indd 23
Turn off the air conditioner and switch mains supply
4
off.
5 Disconnect tubing. After disconnection, protect valves
and tubing ends from dust.
CAUTION
• Compressor damage may occur if the compressor is
run at a negative suction pressure.
Pumping down for removing the product
1 Hold down the (Power) button on the indoor unit
for 5 seconds. Beep sounds immediately to indicate
that the product is ready for pump down procedure.
2 Let the compressor run for more than 5 minutes.
3 Release the valve caps on High and Low pressure side.
4 Use L-wrench to close the valve on the high pressure
side.
After approximately 1 minute, close the valve on the
5
low pressure side.
6 Stop operation of the air conditioner by pressing
the (Power) button on the indoor unit or remote
control.
7 Disconnect the pipes.
1
1 minute
Liquid service port
<High pressure>
2
Off
Gas service port
<Low pressure>
English 23
2016/4/20 14:10:27