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14. INSTALLATION MANUAL
Models: MINI 5, 8, 11(HP), 14(HP), 16(HP)
For authorized personnel
DANGER
This sign indicates crucial information about protection against injury by electric current, injury by leaking refrigerant etc.
WARNING
This sign indicates important information concerning safety operation of the appliance.
CAUTION
This sign indicates information which should not be ignored.
During any manipulation with indoor or outdoor units, it is necessary to disconnect the appliance from the electrical network. After
disconnecting, it is necessary to wait for 5 minutes at least until all the electric circuit condensers are fully discharged.
This appliance contains the new refrigerant HFC (R410A).
This appliance is installed using the same technology as when installing units with common refrigerants, such as R22, R407, R134 etc. The
following rules must be observed:
1. The pressure is 1,6 times higher than the pressure of common refrigerants and therefore, it is necessary to use special tools and
measuring devices. Use the copper piping with homolagation for R410A refrigerant to connect the indoor and outdoor units. Use
protective tools (glasses, gloves etc.) for manipulation with the refrigerant technology.
2. This appliance with R410A refrigerant has different servicing connections than common refrigerants. This different connection prevents
connection of non-homologated service tools. Connection for R410A refrigerant is 1/2 UNF 20 threads per inch.
3. Do not use piping which was already used for another refrigerant with lubricating oil. Piping must be clean and dry. Storage and
transport of the piping must be done in a closed environment.
4. Loading and replacement of the refrigerant must be done in a liquid state when the refrigerant is stabile and both components are in
correct ratio. R410A refrigerant consists of two components.
Special tools for R410A Refrigerant
Tool
Description
Pressure is 1,6 time higher. Using manometers for common refrigerants might cause their damage.
Manometer
These manometers also have different connection.
Service hose
There must be a special hose for R410A refrigerant only.
Vacuum pump
It is used as regular vacuum pump with adaptor for R410A refrigerant connection.
Leakage detector
Leakage detector must be homologated for R410A refrigerant.
Minimum wall thickness of copper piping (R410A)
Size of piping
6.35mm(1/4in.)
Wall thickness
9.52mm(3/8in.)
0.80mm
0.80mm
DANGER
12.70mm(1/2in.)
0.80mm
20
CAUTION
R410A
REFRIGERANT
This product contains R410A refrigerant
and polyester oil.
This product can be installed
only by an authorized personnel.
15.88mm(5/8in.)
19.05mm(3/4in.)
1.00mm
1.20mm
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