Piping Work - Samsung AE RXYDEG Series Installation Manual

Piping work

Water connections must be made in accordance with the outlook diagram delivered with the unit, respecting the water
in- and outlet. If air, moisture or dust gets in the water circuit, problems may occur. Therefore, always take into account the
following when connecting the water circuit:
Use clean pipes only.
Hold the pipe end downwards when removing burrs.
Cover the pipe end when inserting it through a wall so that no dust and dirt enter.
Use a good thread sealant for the sealing of the connections.
The sealing must be able to withstand the pressures and temperatures of the system.
When using non-brass metallic piping, make sure to insulate both materials from each other
to prevent galvanic corrosion.
Because brass is a soft material, use appropriate tooling for connecting the water circuit.
Inappropriate tooling will cause damage to the pipes.
Be careful not to deform the unit piping by using excessive force when connecting the piping. Deformation of
the piping can cause the unit to malfunction.
CAUTION
Always use two wrenches (spanners) for tightening or loosening the water connections, and tighten
connections with a torque wrench as specified in below table. If not, connections and parts can be damaged
and leaks.
The unit is only to be used in a closed water system. If applications are in open water circuit, it will generate Heat
exchangers fouling, Corrosion, Leak.
1
Flushing and air-purging
When filling water, the following start-up procedure should be followed.
1. All system components and pipes must be tested for the presence of leaks.
2. Preparation of a make-up water assembly or flushing unit is recommended for installation
and service.
3. Before connecting pipes to the Outdoor Unit, flush water pipes clean to remove
contaminants during hours using a flushing unit or tap water pressure if it is adequate (at
2 to 3 bar)
4. Fill water into the Outdoor Unit by opening shut-off & drain valve.
5. Purge the air. (Fill with a flushing unit with sufficient capacity: avoid aerating the water)
6. Circulate for long enough to ensure that all air has been bled from the complete water
piping system.
After installations, commissioning should be performed by qualified
representatives. Unless flushing and air-purging works are performed
CAUTION
adequately, it might result in malfunctions.
26
Name
BSPP1
Tightening torque
Flushing unit
(or purging cart)