Air to Air Heat Exchanger with DX Coil Unit
Owner’s Manual
Air to Air Heat Exchanger with DX Coil Unit
Owner’s Manual
– 10 –
EN
6
Timer Operation
Select a timer type from the following three:
(Max. 168 hours)
Setting the timer
1
Push the
button to start operation.
The operation lamp lights up.
2
Push the
button.
Each time the button is pushed, the timer mode
and indication change in the following order:
and the time indication blink.
3
Press the
buttons to set the period of
time until the timer actions.
• The time setting increases in 0.5-hour (30
minute) increments each time you press
.
The setting increases in 1-hour increments if it is
over 1 day (24 hours). The maximum is 7 days
(168 hours).
On the remote controller, settings between 0.5
hours and 23.5 hours (*1) are displayed as is.
For settings over 24 hours (*2), the days and
hours are displayed.
• The time setting decreases in 0.5-hour (30
minute) decrements (0.5 hours to 23.5 hours) or
1-hour decrements (24 hours to 168 hours)
each time you press
.
Example of indication on the remote controller
•
23.5 hours (*
1
)
•
34 hours (*
2
)
4
Press the
button.
•
disappears, the time indication is
displayed,
and
or
flashes.
(When using the ON timer, all indications other
than the time indication and
turn off.)
Cancelling the timer
1
Press the
button.
The timer indicator disappears.
NOTE
• When using the Repeat-OFF timer, pressing the
button after the unit has been stopped by
the timer starts it running again, and the unit will stop
again after the specified period.
• The nighttime heat purge operation is activated, the
unit is running the activated operation while the unit
stops following the timer setting.
OFF timer
: Stops running after a specified period.
Repeat-OFF timer
: Stops running after a specified period every time you use the unit.
On timer
: Starts running after a specified period.
4
2
3
1
Off
Off
On
(OFF timer)
(ON timer)
(Repeat-OFF timer)
No indication
indicates 1 day
(24 hours).
indicates 10 hours.
(Total: 34 hours)
Days Hours
7
Installation
Location
• Do not install the unit in places where the outside
temperature falls below 5°C.
• Avoid installing near machines emitting high
frequency waves.
• Not suitable for chemical plants such as liquefied
carbon dioxide refrigerant plants.
• A failure may occur in certain locations such as the
following:
• Areas with large amount of oil droplets (including
machine oil) or vapors
• Salty areas near oceans, etc.
• Hot springs emitting sulfidizing gas, etc.
• Heavily acidic or alkaline places.
Special maintenance or parts are required for use in
the above places. For details, contact the dealer
where you purchased the product.
• Leave an enough space around the air intake and
outlet of the outdoor unit so that the ventilation is not
restricted.
• Avoid places where strong wind may blow against
the air intake and discharge of the outdoor unit.
• Attach a snow stand, snow hood, etc. to the outdoor
unit for use in snowfall areas. For details, contact the
dealer where you purchased the product.
• Make sure drain water from the outdoor unit is
emitted into places with good drainage.
• Confirm that the filters for the heat transfer element
and the medium efficiency particulate air filter are
attached. If they are not attached, the heat transfer
element or the heat exchanger will become clogged
with dust, deteriorating the performance and
possibly causing water leakage.
• Keep a distance of at least 1 m between the Air to Air
Heat Exchanger with DX Coil Unit/remote controller
and a TV or radio. Failure to observe this precaution
may cause visual disturbance or noise.
• Leave a distance of at least 1.5 m between the air
outlet and a fire alarm. If this precaution is not
observed, the alarm may not work properly or detect
fire in case of fire.
Be careful of operation
sounds
• Locate the unit in a place secure enough so that the
sounds and vibrations do not increase.
• If something is placed near the air discharge of the
outdoor unit, noise may increase.
• Do not disturb your neighbors with cool/warm air or
noise coming from the air discharge of the outdoor
unit.
19-EN
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+00ET99915201_00Ta.book Page 10 Tuesday, February 15, 2011 6:45 PM
