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Safety Precautions
mrcool.com
Note about Flourinated Gasses (Not applicable to the unit using R290 Refrigerant)
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WARNING for Using R32/R290 Refrigerant
WARNINGS FOR PRODUCT INSTALLATION
Installation must be performed by an authorized dealer or specialist. Improper installation can cause water
leakage, electrical shock, and/or fire.
Installation must be performed according to the installation instructions. Improper installation can cause
water leakage, electrical shock, and/or fire. In North America, installation must be performed by authorized
personnel and in accordance with the requirements of the NEC and CEC.
Contact an authorized service technician for repair or maintenance of this unit. This appliance should be
installed in accordance with national and state wiring regulations.
Only use the included accessories, parts, and specified parts for installation. The use of non-standard,
aftermarket parts could cause water leakage, electrical shock, fire, and/or cause the unit to fail.
Ensure the unit is installed in a firm, solid location that can support the unit’s weight. If location chosen for
installation is not able to support the weight of the unit, or the installation is completed improperly, it could
cause the unit to drop. This could result in serious injury and/or property damage.
Install a drainage pipe according to the instructions provided in this manual. Improper drainage may cause
water damage to your home or other property.
For units that have an auxiliary electric heater,
DO NOT
install the unit within 3 feet (1 m) of any combustible
materials.
DO NOT
install the unit in a location that may be exposed to combustible gas leaks. If combustible gas
accumulates around the unit, it could cause an explosion, fire, and/or personal injury.
DO NOT
turn on the power until all work has been completed.
When moving or relocating the air conditioner, consult an experienced service technician for disconnection
and reinstallation of the unit.
For more information on how to install the indoor and outdoor unit to their supports, please refer to the
respective indoor and outdoor unit installation sections of this manual.
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This air-conditioning unit contains fluorinated greenhouse gasses. For specific information about the type
of gas, and the amount please refer to relevant label on the unit, or the Manual contained in packaging of the
outdoor unit.
Installation, service, maintenance, and repair of this unit must be performed by a certified technician.
Product uninstallation and recycling must be performed by a certified technician.
For equipment that contains fluorinated greenhouse gasses in quantities of 5 tonnes of CO
2
equivalent or
more, but of less than 50 tonnes of CO2 equivalent, if the system has a leak-detection system installed, it
must be checked for leaks at least every 24 months.
When the unit is checked for leaks, proper record keeping of all checks is strongly recommended.
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When flammable refrigerants are used, the appliance should be stored in a well-ventilated area where the
room size corresponds to the requirements of room areas specific for operation. Please use the following
criteria to determine this based on the type of refrigerant used:
For R32 refrigerant models: Appliance should be installed, operated, and stored in a room with a
floor area larger than 4m
2
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For R290 refrigerant models: Appliance should be installed, operated, and stored in a room with a
floor area larger than:
**
For units less than or equal to 9,000 Btu/h: 25.4 m
2
**
For units greater than 12,000 Btu/h, but less than or equal to 18,000 Btu/h: 26m
2
**
For units greater than 18,000 Btu/h , but less than or equal to 24,000 Btu/h: 35m
2
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