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I Installation Instructions
4 / Horizontal Drain Pan
Figure
1
Electric Furnace I
Horizontal Drain Pan
(Left Hand Airflow)
Coil Support Bracket
(Right Hand Air_)
\
il Support Bracket
Coil Access Panel
\
Drip Flanges
(Left Hand Airflow)
Drip Flanges
(Right Hand Airflow)
Coil Support Bracket
(Left Hand Airflow)
Horizontal Drain Pan
(Right Hand Airflow)
38-20-06
Figure 5 Horizontal Installation
Field-Fabricated
Drain Pan
Supports MUST run parallel with blower cabinet =-_
Filter Installation
Filters must be field supplied. The blower cabinet is set up for an
internal filter or a remote filter grille or other means may be pro-
vided. Refer to ACCA Manual D for remote filter sizing.
To install an internal filter, remove screw securing filter door and
slide filter into unit. Some filters are marked for airflow direction,
make sure arrow points towards blower if marked. Washable fil-
ters are offered as an accessory. Disposable filter sizes are listed
in Filter Static Pressure Drop Table.
Condensate Drain
The unit is provided with 3/4" National Pipe Thread (NPT) con-
densate drains. (Figure 1). Any drain can be used as a primary or
secondary drain. Condensate drain lines should be insta!led in a
manner that does not obstruct access to the filter.
There is a secondary drain fitting supplied with the unit that will
convert any of the primary condensate drain connections into a
secondary drain connection. This fitting should be insta!led in any
of the primary drain connections to convert it to asecondary drain.
1. Connect the drain lines to the appropriate drain fittings. 3/4"
PVC or other type of drain line may be used. The drain line
must not be smaller than the drain fitting.
2. Insta!l a trap in the drain line below the bottom of the drain
pan and pitch the drain lines down from the coil at least I/4"
per foot of run. Horizontal runs over 15 feet long must also
have an anti-siphon air vent (stand pipe), installed ahead
of the horizontal run. An extremely long horizontal run may
require an oversized drain line to eliminate air trapping.
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