7
The primary condensate drain must be terminated to an open drain
or sump. Do not connect the condensate drain to a closed waste
system. An open vertical air vent should be installed to overcome
line length, friction and static pressure. It is recommended that
the auxiliary drain be connected to a drain line for all units. The
auxiliary drain should be run to an area where the homeowner
will notice it draining. The drain line should not be smaller than
the drain connection at the condensate pan. If the air handler is
located in an unconditioned space, water in the trap may freeze. It
is recommended that the trap material be of a type that will allow
for expansion of water when it freezes. Drain lines must be in
conformance with local codes.
Air Handler Configuration
The air handler is factory configured for upflow and horizontal
left hand air discharge installation (Figure 1). For bottomflow or
horizontal right hand discharge, certain field modifications
are required.
Warning: Do not lift or reposition the ‘A’ coil by grasping the
copper tube header or distributor. This could cause a tubing
fracture resulting in a refrigerant leak.
General Installation Information cont.
Figure 1 - Factory configuration is top discharge and
horizontal left hand air discharge.
1.5"
3.0"
3/4" PVC
Coupling
Vent
3/4" PVC
1/8" per foot
ASTON SERIES AIR HANDLER INSTALLATION MANUAL
