HTW IX21D5 Serie Manuel D'installation page 53

SPLIT 1X1 IX21D5
WARNING FOR THE USE OF R-32 REFRIGERANT
• When flammable refrigerant is used, the appliance must be stored in a well ventilated area where
the size of the room corresponds to the area of the room as specified for its operation. For R-32
refrigerant models: The device must be installed, operated and stored in a room with a surface area
greater than 4m2. The device must not be installed in a space without ventilation, if that space is less
than 4m2.
• Reusable mechanical connectors and flared joints are not allowed indoors. (Requirements of the EN
standard).
• Mechanical connectors used indoors must have a rate of no more than 3g / year at 25% of the
maximum allowable pressure. When mechanical connectors are reused indoors, the sealing parts
must be renewed. When flare joints are reused indoors, the flare part must be remanufactured.
(Requirements of UL standard)
• When mechanical connectors are reused indoors, the sealing parts must be renewed. When flare seals
are reused indoors, the flare part must be remanufactured. (IEC Standards Requirements)
Caution: Fire hazard.
(only for R32 refrigerant)
INSTALLATION MANUAL
0. SAFETY PRECAUTIONS
51
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