5. Plan the job and obtain the needed materials. For electrical you may need
Romex or you may be required to used wire in conduit or other option depending
on your situation and local code. You may need conduit, PVC or other pipe for the
outdoor connections.
For water lines we suggest ¾ PEX. If your run is over 100 ft. one-way it is possible
to exceed this maximum distance by using 1” PEX after performing a pump head
calculation and consulting the pump curve.
If you are at this point and are not sure how to proceed, you are probably not a
good candidate to perform these tasks.
6. Mount the indoor unit on the wall for placement purposes. Make sure it is
level.
7. Unpack the line-set and place one end of it near the connection to the indoor
unit and place the other end near the outdoor unit. Connect the line-set to the
indoor unit. Do not other end. If the line-set is not long enough and you did not
order a 25 ft. extension, your HVAC technician can make one easily if he knows in
advance that he will need to do so. Same applies to the control cable that
connects the indoor unit to the outdoor unit. Make a watertight professional 3”
exterior wall penetration. Fit the line-set and control cable through the hole and
carefully bend it towards the outdoor unit. Do this work neatly and carefully,
considering the requirements of the drain tube. Use tape to wrap the line-set and
control cable. Use the included grommet to seal the hole. Secure the line-set to a
wall or other structure so it cannot move in the wind, first making sure you have
enough extra line at each end for your connections. Know what kind of structural
and finish materials you are working with and obtain the correct hardware to
properly attach the line-set to the structure. Measure twice! Make sure your line-
set and cables are long enough.
8. Before starting installation of the water connections, inspect the water heater
for leaks, corrosion or other problems. If the water heater needs to be changed
out, now is the right time. If the existing water heater is acceptable, proceed
with the following installation.
