Operation Manual
EDMMT712101
116
VAM-HVE/HVLT Series
3P645002-1
5
STAND-ALONE NIGHTTIME FREE COOLING
OPERATION
OFF
ON
22:00
24:00
40
30
20
OFF
Outdoor
temperature
Indoor
temperature
Set temperature
Nighttime free cooling operation
Following morning
(time)
T
emper
ature
T
otal heat
e
xchanger
This is performed for independent systems and
centralized systems.
Temperature to be set can be selected by making fi eld
settings.
<
Unit operation
>
The total heat exchanger unit compares the indoor
and outdoor temperatures after it stops for the night.
If the following conditions are met, the operation
starts and when the indoor temperature reaches the
temperature setting of the total heat exchanger unit,
the operation stops.
Conditions;
1. The indoor temperature is higher than the
temperature setting of the total heat exchanger unit.
2. The outdoor temperature is lower than the indoor
temperature.
If the above conditions are not met, reevaluation is
made every 60 minutes.
• For other functions, see the operation manual of the
remote control.
4
MAINTENANCE
(for a qualified service person only)
WARNING
• Do not use flammable gas (such as hair spray
and insecticide) near the main unit. Do not wipe
the main unit and remote control with thinner,
etc.
This may cause cracks, electric shock, or ignition.
• Do not wash the total heat exchanger unit with
water (not including air filters).
If the electrical parts or motors get wet with water,
it may cause electric leakage, resulting in electric
shock or fire.
• Be sure to stop the operation, and turn the
breaker off before cleaning or inspection.
As the fan inside the unit is rotating at high speed, it
will cause electric shock or injury.
CAUTION
• Use gloves when cleaning.
Cleaning without gloves may cause injury.
• Watch your step when working in high places.
If the scaffold is unstable, you may fall or topple
down thus causing injury.
NOTE
• Do not operate the unit without air filter except
during cleaning.
Missing air filter causes clogged heat exchange
element which may lower operation efficiency and
cause a failure.
• When cleaning, replace heat exchange element
if its’ knob is found damaged or in deteriorating
condition as it is a potential dropping hazard.
• Do not install anything (such as kitchen paper)
other than the genuine air filters on the air inlet.
Doing so may lower operation efficiency and cause
freezing or leakage.
• Cleaning of air filter or heat exchange element,
installation and replacement high-performance filter
(optional accessory) involves a work in high places
and it is dangerous.
Be sure to ask your dealer to have such works
done.
• If water is in the unit, clean it by wiping it off with a
soft cloth.
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Summary of Contents for VAM Series
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Page 4: ...EDMMT712101 2 Table of Contents 17 6 Precautions for Design and Installation 181 ...
Page 56: ...Control System EDMMT712101 54 VAM HVE HVLT Series C 3P343420 1E ...
Page 138: ...Installation Manual EDMMT712101 136 VAM HVE HVLT Series 3P607378 3C ...
Page 139: ...EDMMT712101 Installation Manual VAM HVE HVLT Series 137 3P607378 3C ...
Page 141: ...EDMMT712101 Installation Manual VAM HVE HVLT Series 139 C EM20A032 ...
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Page 147: ...EDMMT712101 Details of Optional Accessories VAM HVE HVLT Series 145 3P607378 3C ...
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Page 155: ...EDMMT712101 Details of Optional Accessories VAM HVE HVLT Series 153 4P457318 1D ...
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