Mitsubishi Electric City Multi PEFY-P06NMSU-E Technical & Service Manual page 4

Precautions for PAC-YU25HT (Optional parts)
WARNING
Stop the operation if any malfunction occurs.
If malfunction occurs (burning smell, etc.) stop the opera-
tion and turn off the power supply. Contact your dealer or
technical representative. If the controller continues to oper-
ate after a malfunction occurs, this may cause damage,
electric shock or fire.
Do not turn on the main power until installation has been
completed.
Doing so may result in electric shock or fire.
Leave sufficient space between heater and indoor unit to al-
low for air movement to prevent the indoor unit from over-
heating.
If they are installed too closely and the indoor unit temper-
ature exceeds 40°C, malfunctions or fire may result.
CAUTION
Do not install in any place exposed to flammable gas leak-
age.
Flammable gases accumulated around the body of PAC-
YU25HT may cause an explosion.
Do not use in any special environment.
Using in any place exposed to oil (including machine oil),
steam and sulfuric gas may deteriorate the performance
significantly or give damage to the component parts.
Do not install in any place where acidic or alkaline solution
or special spray are often used.
Doing so may cause an electric shock or malfunction.
HWE08010
Keep the heater clean to keep the indoor unit from sucking
in accumulated dust on the heater.
Dust particles that enter the indoor unit may cause fire.
When air conditioner and heater are configured to perform
an interlocked operation, do not use any other type of ca-
bles except this external heater adapter (PAC-YU25HT).
The use of any other type of cables may result in malfunc-
tions or fire.
Do not build a heater into the indoor unit.
Doing so may result in fire.
Do not install in any steamy place such a bathroom or kitch-
en.
Avoid any place where moisture is condensed into dew.Do-
ing so may cause an electric shock or malfunction.
Do not wash with water.
Doing so may cause an electric shock or malfunction.
Do not install in any place at a temperature of more than
40°C (104°F) or less than 0°C (32°F) or exposed to direct
sunlight.
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