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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 other substances or gases enter the unit when connecting refrigerant piping.
The presence of other gases or substances will lower the unit’s capacity, and could cause
abnormally high pressure in the operation cycle. This could cause an explosion and/or
personal 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 and/or an explosion could occur.
Installation must be performed by an authorized technician. Improper installation could cause
water leakage, electrical shock, and/or fire.
Installation must be performed according to installation instructions. Improper installation could
cause water leakage, electrical shock, and/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
could cause water leakage, electrical shock, fire, and/or cause the unit to fail.
Before installing, modifying, or servicing the system, the main electrical disconnect switch must be
in the “OFF” position. There could be more than one disconnect switch. Lock out and tag 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 personal
injury, 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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