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Safety Precautions
mrcool.com
WARNING
Please read the manual in its entirety before installing, operating or repairing.
DO NOT share the electrical circuit with other appliances. Improper or insufficient power supply
can cause fire or electrical shock.
DO NOT let substances or gases, other than the refrigerant, enter the unit when connecting
refrigerant piping. The presence of other gases or substances will lower the unit’s capacity, and
may cause abnormally high pressure in the operation cycle. This may cause explosion and injury.
DO NOT connect the ground wire to a gas pipe, water pipe, lightning arrester, or telephone wire.
DO NOT allow children to play with the air conditioner. Children should be supervised around the
unit at all times.
DO NOT alter the settings of the pressure sensor or other protective devices; if short-circuited or
modified, fire or even an explosion could occur.
Installation must be performed by an authorized technician. Improper installation may cause
water leakage, electrical shock, or fire.
Installation must be performed according to installation instructions. Improper installation may
cause water leakage, electrical shock, or fire.
In North America, installation must be performed in accordance with the requirement of NEC and
CEC (by authorized personnel only). Contact an authorized service technician for repair or
maintenance of the unit.
Only use the included accessories and specified parts for installation. Using non-standard parts
can cause water leakage, elctrical shock, or fire and may cause the unit to fail.
Before installing, modifying, or servicing the system, the main electrical disconnect switch must be
in the OFF position. There may be more than one disconnect switch. If there is another disconnect
switch, in addition to the main switch, lock-out and tag this switch with a suitable warning label.
Read Before Installation
Incorrect installation may cause serious damage or injury.
The seriousness of potential damage or injuries is classified as either a WARNING or CAUTION.
WARNING
CAUTION
This symbol indicates ignoring instructions may cause death or serious injury.
This symbol indicates that ignoring instructions may cause moderate injury
to your person, damage to your unit, or other property.
This symbol indicates that you should never perform the indicated action.
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Safety Precautions
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