Refrigerant Pipe Size And Allowable - Haier 1UH071N1ERG Installation Manual

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
G
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
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.
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.
D
Above
1000
Above 300
Above 300
Above 300
H
Above 2000
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.)
Above 200
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
(DB) for
to deteriorate, adversely affecting the coolant piping
system.)
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