AUX AL-H12/4R1D, Service Manual

Page: 78 / 157

AUX-Light CAC 50Hz R410A Universal outdoor unit
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the room;
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In order to facilitate maintenance and repair, there should be certain distance between indoor unit
and obstacles;
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Refrigerant R22 is used for this unit, which is non-flammable and non-toxic gas. As the proportion of
refrigerant is bigger than air, so if it leaks the gas will be filled on the ground. Therefore, if the units
mounted on a closed room there must be good ventilation to prevent suffocation. In case of leakage
of refrigerant, units should immediately stop running, and contact with maintenance personnel in time.
There must be no fire at the site, because the refrigerant will turn to harmful gas when get to the fire.
7.3 The distance between indoor unit and obstacle
7.4 Indoor unit suspension
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Select the suspension foundation
The suspension foundation is a structure of either wooden
frame orreinforced concrete. It must be firm and reliable to
bearat least 4 times.
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weight of itself and capable of bearing vibration for long periods;
Fixing of suspension foundation
Fix the suspension bolts either as shown in the picture or by a
steel or wooden bracket;
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Adjust the relative positions of the suspension hooks to ensure
the indoorunit is level in all directions. Use a spirit level to ensure this,
otherwise water leakage, air leakage etc. will be resulted;
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Tighten the nuts and ensure that the hooks are tightly connected to the nuts and shims,
andthere is no phenomenon of virtual hanging;
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After the unit is installed ensure it is secure and does not shake or sway.
7.5 Duct pipeline installation
Using canvas to connect between indoor unit and duct pipeline, in order to save unnecessary vibration,
as to the detail connection method please refer to the following picture.