Use and Care Manual

Page 52mrcool.com
Test Run
4. Ensure water is being drained from the pipe. It
could take up to one minute before the unit
begins to drain depending on the length of the
drain pipe.
5. Ensure there are no leaks in any of the piping.
6. Stop the air conditioner. Then, turn off the main
power switch.
7. Now, reinstall the test cover.
Water Discharge Test Instructions
1. Connect the power supply, and set the air
conditioner to operate in the COOL mode.
Ensure you can hear the drainage pump
operating.
2. Allow the unit to operate in COOL mode for at
least 10 minutes.
3. Then, stop the air conditioner and wait for 3
minutes. After 3 minutes has passed, check if
there is anything unusual with how the unit is
draining. If the water discharge piping layout is
not correct, the excessive water flow will cause
a water level error code to be triggered and the
“EE” error code will be displayed on the display
panel. There could even be water overflowing
from the water pan.
4. Continue to add water until the alarm for
excessive water levels is triggered. Then, check
if the drainage pump drains the water
immediately. If after three minutes the water
level does not fall below the warning level, the
unit will shut down. NOTE: If this occurs, you
will need to turn off the power supply, and
drain away the accumulated water before
the unit can be turned on normally.
5. Turn off the power supply, remove the water
manually using the drainage plug, and put the
test cap back in its original place.
The drainage plug at the bottom of the unit
body is used to discharge accumulated
water from the drain pan if the air
conditioner should ever malfunction. When
the unit is operating normally, ensure the
drainage plug is properly installed and
seated to prevent water from leaking out of
the unit.
CAUTION
IMPORTANT:
• Before performing the test, ensure that
the water discharge pipeline is installed and
sealed properly.
• If this unit is being installed during
construction of the location, ensure this
test is performed before the ceiling is
finished or paved.
THANK YOU
Thank you for purchasing a MRCOOL
®
ductless mini-split heating and air
conditioning product.
MRCOOL
®
is a young, family-owned company,
so we are truly thankful you trusted us with
your business. Should you ever need
technical support, or just have questions
about your MRCOOL
®
product, or any of the
other products we offer, please do not
hesitate to call us at (270)-366-0457.
Also, if you can spare a few minutes today,
and leave a review of your new MRCOOL
®
product on the partner site where you
purchased it, it would really mean a lot to us.
We are always looking for ways to improve,
and real reviews, from actual customers like
yourself, are vital and invaluable to our
growing company.
Thank you for being a valued customer!
IMPORTANT!
Once the entire installation has been
completed and the system has been
fully tested, the area above and
around the cassette should be
re-insulated. This will help to guard
against the condensation/sweating of
the unit that can occur due to the
differences in the room temperature
the cassette provides air to and the
environment it is installed in (example:
attic). If the area is not re-insulated it
could cause property damage and the
system to malfunction!