SECTION D
 Air Delivery Clearances
Make certain to maintain proper clearances around the 
 unit. 
Inadequate clear ances 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. 
Electrical Power 
Follow all local codes and regulations when installing electrical 
wiring. 
Route required electrical power to area where the High ESP 
Duct unit is to be located. Maintain at least  a 10 foot 
separation between TV and radio wiring and the power to 
the indoor unit. 
14/4 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 
power to the indoor unit, break wire 2 only. 
Condensate Handling
The High ESP Duct unit has a built-in condensate pump and 
water level safety switch. There are also two optional ports 
for gravity drainage. The condensate pump is rated to lift 
water up to 27 9/16" from the point of discharge.
The High ESP Duct unit comes with a grey connection hose 
with clamp. This hose is connected to the High ESP Duct unit 
condensate discharge hose port. The other end of the hose 
is sized to accept 3/4  inch PVC piping. 
Intr oduction - Overview
12 in. below
3-5 ft.
11 in. under
8.6 in.
8.6 in.
19.6 in.   below
Recommended condensate piping configurations are 
shown here: