Page 5
Safety Precautions
mrcool.com
Note about Fluorinated Gases:
1. This unit contains fluorinated greenhouse gases.
2. For specific information on the type of gas and the amount, please refer to the relevant label on
the unit itself.
3. Service, maintenance, and repair of this unit must be performed by a certified technician.
4. Product un-installation and recycling must be performed by a certified technician.
5. For equipment that contains fluorinated greenhouse gases in quantities of 5 tonnes of CO
2
equivalent or more, but less than 50 tonnes of CO
2
equivalent, and has a leak-detection system
installed, it must be checked for leaks at least every 24 months.
6. Keeping a record of all leak checks for the lifetime of the unit is strongly recommended.
1. When flammable refrigerants are employed, the appliance should be stored in a well-ventilated area
where the size of the room corresponds to the area size required for the operation of the unit.
• For R-32 refrigerant models:
The appliance should be installed, operated, and stored in a room with a floor area larger than 4m
2
.
The appliance should not be installed in an unventilated space, if the space is smaller than 4m
2
.
• For R-290 refrigerant models, the minimum room size needed:
• For units with a capacity less than or equal to 9,000 Btu/h: 13m
2
• For units with a capacity greater than 9,000 Btu/h and less than or equal to 12,000 Btu/h: 17 m
2
• For units with a capacity greater than 12,000 Btu/h and less than or equal to 18,000 Btu/h: 26 m
2
• For units with a capacity greater than 18,000 Btu/h and less than or equal to 24,000 Btu/h: 35 m
2
2. Reusable mechanical connectors and flared joints are not allowed indoors (EN Standard
Requirements).
3. Mechanical connectors used indoors should have a rate of not more than 3g/year at 25% of the
maximum allowable pressure. When mechanical connectors are reused indoors, sealing parts should
be renewed. When flared joints are reused indoors, the flared end should be re-fabricated (IEC
Standard Requirements).
WARNING for Using R-32/R-290 Refrigerant
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