AMST Installation Manual
5
Kit Number Application
DPK1 All Models
Side Drain Port Plug
Description
Drain Port Plug
DRAIN PORT PLUG KIT
6.1 Upflow Installation
drain pan and drain pan extension can be removed.
See previous “Side Drain Pan and Extension Removal”
instructions.
6.2 Horizontal Left Installation
Install unit as shown in Figure 4.
Drain port labeled (B) in Figure 1 is the primary drain for
this application and condensate drain line must be attached
to this drain port. Drain port (b) is for the secondary drain
line (if used).
Remove red plugs from side drain pan before connecting
condensate drain pipes. Use removed plug to close
drain ports on vertical drain pan. The bottom right drain
connection in side drain pan is the primary drain for this
application and condensate drain line must be attached to
this drain connection. The bottom left drain connection in
side drain pan is for the secondary drain line (if used).
6.3 Horizontal Right Installation / Downflow
Installation
unit in Horizontal Right, or if the side drain pan is not
and horizontal right applications for all models.
Refer to Figure 6 and 7 for the location of the components
referenced in the following steps.
1. Before inverting the air handler, remove blower access
panel and coil access panel. The coil access panel and
tubing panel may remain screwed together during this
procedure. Remove and retain the seven (7) screws
securing the coil access panel to the cabinet and the
six (6) screws securing the blower access panel to the
cabinet.
2. Slide the coil assembly out from the cabinet. Use the
drain pan to pull the assembly from the cabinet.
NOTE: Do not use manifolds, copper lines, or the
may result in braze joint damage and leaks.
3. Removal of the center support is required on units
with 21” wide cabinet. Remove and retain the two (2)
screws that secure the center support to the cabinet.
Remove the center support.
4.
5. Using the drain pan to hold the coil assembly, slide the
brackets as shown in Figure 8.
6. Reinstall the center support (if removed) using the two
(2) screws removed in Step 5.
7. Reinstall the coil access panels and reinstall blower
access panel removed in Step 1 as shown in Figure 9.
8. Drain Connections for Horizontal Right Installation
a. The bottom right drain connection in side drain
pan is the primary drain for this application
and condensate drain line must be attached
to this drain connection. The bottom left drain
connection is for the secondary drain line (if
used).
b. Remove red plugs from side drain pan before
connecting condensate drain pipes. Use removed
plug to close drain ports on vertical drain pan.
a. The bottom left drain connection in the vertical
drain pan is the primary drain for this application
and condensate drain line must be attached to
this drain connection. The bottom right drain
connection is for the secondary drain line (if
used).
b. Remove red plugs from vertical drain pan before
connecting condensate drain pipes.