Haier Smart Power Series Service Manual page 137

Smart Power
(2) Multi-unit installation (unit: mm)
(3) Multi-unit installation in front and back (unit: mm)
Standard
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°C (DB) for
COOL operation. In regions where the air intake temperature regularly exceeds 35°C (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.
7.3.3 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.
7.4 Refrigerant pipe size and allowable pipe length
• Piping an other pressure containing parts shall comply with the applicable legislation and shall be suitable for
refrigerant. Use phosphoric acid 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.
It is forbidden to discharge refrigerant into the atmosphere. Collect the refrigerant in accordance with the freon
collection and destruction law.
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.)
DANGER
INFORMATION
NOTICE
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