Refrigerant Pipe Size And Allowable Pipe Length - Haier 1U105S2SS1FA Manuel D'installation

When barriers exist above the unit
The top and two side surfaces must be exposed to
open space, and barriers on at least one side of the
front and back shall be lower than the outdoor unit.
(2) Multi-unit installation (unit: mm)
Back and side
Above 150 Above 300
Front and back
Above 300
Height of barriers is below that of outdoor unit
(3) Multi-unit installation in front and back (unit: mm)
Standard
Above 1000
The top and two side surfaces must be exposed to open
space, and barriers on at least one side of the front and
back shall be lower than the outdoor unit.
„ The installation service spaces shown in the illustrations
are based on an air intake temperature of 35 (DB)
for COOL operation. In regions where the air intake
temperature regularly exceeds 35 (DB), or if the heat
load of outdoor units is expected to regularly exceed the
maximum operating capacity, reserve a larger space
than that indicated at the air intake side of units.
Above
1000
Above 300 Above 300
Above 300
Above 200
Above 2000
„ Regarding the required air outlet space, position the
units with consideration to the space required for the
onsite refrigerant piping work as well. Consult your
dealer if the work conditions do not match those in
the drawings.
5.3. Drain pipe disposal
„ Make sure the drain works properly.
„ In regions where buildups of snow can be expected,
the accumulation and freezing of snow in the space
between the heat exchanger and external plate may
lower operating efficiency.
„ After punching the knock-out hole, the application
of repair-type paint on the surface around the edge
sections is recommended to prevent rust.
6. Refrigerant pipe size and
allowable pipe length
DANGER
„ Piping an other pressure containing parts shall
comply with the applicable legislation and shall
be suitable for refrigerant. Use phosphoric acide
deoxidised seamless copper for refrigerant.
„ Installation shall be done by an installer, the choice
of materials and installation shall comply with
applicable legislation. In Europe the EN378 is the
application standard that shall be used.
INFORMATION
It is forbidden to discharge refrigerant into the
atmosphere. Collect the refrigerant in accordance
with the freon collection and destruction law.
NOTICE
To persons in charge of piping work:
Be sure to open the stop valve after piping
installing and vacuuming is complete. (Running
the system with the valve closed may break the
compressor.)
NOTICE
Do not use flux when brazing the refrigerant
piping. For brazing, use phosphor copper brazing
filler metal (BCuP) which does not require a flux.
(If a chlorine flux is used, the piping will corrode,
and if the flux contains fluoride, if will cause the
coolant oil to deteriorate, adversely affecting the
coolant piping system.)
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