![background image](http://html1.mh-extra.com/html/mars/comfort-aire-century-svh-sb-series/comfort-aire-century-svh-sb-series_owners-and-installation-manual_1730533008.webp)
Safety
Precautions
Page 6
WARNING for Using R32/R290 Refrigerant
When flammable refrigerant are employed, appliance shall be stored in a well -ventilated area
where the room size corresponds to the room area as specific for operation.
For R32
refrigerant
models:
Appliance shall be installed, operated and stored in a room with a floor area larger than
14'
.
Appliance shall not be installed in an
unventilated
space, if that space is smaller than
14'.
.
2
For R290 refrigerant models, the minimum room size needed:
<=9000Btu/h units:
43'
>9000Btu/h and <=12000Btu/h units:
56'
>12000Btu/h and <=18000Btu/h units: 26m
>18000Btu/h and <=24000Btu/h units: 35m
Reusable mechanical connectors and flared joints are not allowed indoors.
(
EN
Standard Requirements).
Mechanical connectors used indoors shall have a rate of not more than 3g/year at 25%
of the maximum allowable pressure. When mechanical connectors are reused indoors,
sealing parts shall be renewed. When flared joints are reused indoors, the flare part
shall be re-fabricated. (
UL
Standard Requirements)
When mechanical connectors are reused indoors, sealing parts shall be renewed. When
flared joints are reused indoors, the flare part shall be re-fabricated.
(
IEC
Standard Requirements)
86'
115'