Page 35 mrcool.com
Outdoor Unit Installation
When drilling into concrete, eye protection
should be worn at all times.
Step 3: Anchor Outdoor Unit
The outdoor unit can be anchored to the ground or
to a wall-mounted bracket using M-10 bolts. Prepare
the mounting surface of the unit according to the
dimensions listed in the table on the following page,
using the illustrations as a guide to correspond with
the table.
If you are installing the outdoor unit on the
ground, or a concrete mounting platform, follow
these steps:
1. Mark the positions for four expansion bolts based
on dimensions in the Mounting Dimensions
chart and illustrations above (for multi-zone
condensers please refer to the next page).
2. Pre-drill holes for expansion bolts.
3. Clean concrete dust away from the holes.
4. Place a nut on the end of each expansion bolt.
5. Hammer expansion bolts into the pre-drilled holes.
6. Remove the nuts from the expansion bolts, and
place outdoor unit on bolts.
7. Put a washer on each of the expansion bolts, then
reinstall the nuts.
8. Using a wrench, tighten each nut until snug.
If you are installing the unit on a wall-mounted
bracket, follow these steps:
1. Mark the position of the bracket holes based on
the dimensions in the table on the next page.
2. Pre-drill the holes for the expansion bolts.
3. Clean dust and debris away from the holes.
4. Place a washer and nut on the end of each
expansion bolt.
5. Thread expansion bolts through the holes in the
mounting brackets. Then, put the mounting
brackets in position and hammer the expansion
bolts into the wall.
6. Check that the mounting brackets are level.
WARNING
Before attempting to install a wall-mounted
unit, make sure that the wall is made of solid
brick, concrete, or a similarly strong material.
The wall must be able to support at least 4
times the weight of the unit.
CAUTION
When drilling into concrete, eye protection
should be worn at all times.
WARNING
7. If the feet of the outdoor unit have rubber pads
already installed, and you’re using a MRCOOL
®
wall-mounted bracket, remove them before
attempting to mount the condenser to the bracket.
The mounting bracket has rubber isolating pads on
it that will take the place of these.
8. Carefully lift the unit and place its mounting feet
on the brackets.
9. Then, bolt the unit firmly to the brackets.
Step 4: Connect Refrigerant Piping to
Outdoor Unit
Once the outdoor unit has been securely mounted,
the refrigerant piping that will connect it to the indoor
unit(s) can now be installed. For more detailed
information of how to connect the refrigerant
piping to the indoor and outdoor units, please refer
to the Refrigerant Piping Connection section of
this manual and complete all piping connections
before proceeding to the next step.
TO REDUCE VIBRATION OF UNIT
If allowed, you can install the wall-mounted
unit with rubber gaskets which will reduce
vibration and noise.
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