Haier AW12LC2VHA Installation Manual page 10

Fresh Air Intake Option
The cassette has a marked area to cut out if outside air is
desired. The piping connection should be made with a 4 inch
diameter pipe. Outside air should be pre-filtered prior to
entry into the cassette.
Condensate Handling
The Cassette unit has a built in condensate pump and water
level safety switch. There is no option for gravity drain. The
condensate pump is rated to lift water up to 24" from the
point of discharge on the cassette assembly.
The cassette unit comes with a grey connection hose with
clamp. This hose is connected to the cassette assembly
discharge hose port. The other end of the hose is sized to
accept 3/4 " PVC piping.
Recommended condensate piping configurations are shown
here:
12 in. below 3-5 ft.
Introduction - Overview
11 in. under
8.6 in.
INSTALLATION
Electrical Power
Follow all local codes and regulations when installing electrical
wiring.
Route required electrical power to area where cassette is to
be located. Maintain at least a 10 foot separation between TV
and Radio wiring and the power to the indoor unit.
14 Gauge AWG stranded wire should be used to make the
electrical connection between indoor and outdoor units.
This wiring will serve to power the indoor unit and establish a
communication link between indoor and outdoor units.
The wiring is connected at the indoor unit electrical terminal
blocks screws 1, 2, 3 and ground. There should be no
splices in the wires connected to terminals 1 or 3 as these
serve as communication signal wires and electrical power
connections. If a safety switch needs to be in place to shut off
power to the indoor unit, break wire 2 only.
Air Delivery Clearances
Make certain to maintain proper clearances around the
cassette as specified in the installation instructions.
Standard clearances for cassette air handlers require 5
feet of clearance in each direction. There should be 8 feet
of clearance from the face of the cassette louver to the
floor. Inadequate clearances can cause system freezing and
temperature control problems.
Service and Maintenance Clearances
Make sure there are adequate clearances for future
maintenance and service. Allow enough room to access the
condensate pump assembly and the electrical control box.
5 ft.
8 ft. Over
5 ft.