Dettson COND-30-01, Installation Instructions And Owner'S Manual

Page: 18 / 53

18
Figure 14: Splashguard with front slope
6.7.2- Multiposition (field conversion)
Field Conversion Instructions from Left-to-Right or Right-to-Left
Airflow
FOR EACH STEP, REFER TO FIGURE 15:
1- Remove front panels.
2- Remove the top tie bar and pull the coil assembly from the
housing.
3- Remove the horizontal drain pan, and re-install it to the opposite
side of the coil (Note: horizontal drain pan must have drain plugs
tightly closed in the rear of the unit).
4- Remove the top plate.
5- Remove the water diverter, and re-install it to the opposite slab
(Note: If water diverter is attached by screws, remove screws,
and bend tab straight or cut tab off).
6- Replace the top plate, and apply sealant to seal any air gaps.
7- Before re-inserting the coil assembly, cut the front flange on the
housing and fold it back to allow access to the horizontal drain
connections (Note: Copy the factory cut-out on the opposite side
of the housing).
8- Slide the coil assembly back into the housing (Note: If unit is
equipped with a sheet metal spacer, it must be moved to the
opposite side of the housing).
9- Re-install the piping panel to the housing.
10- Cut a hole in the access panel to allow access to the horizontal
drain connections, and re-install the access panel to the housing
(Note: Access panel may need to be notched to allow access to
suction header).
11- Seal unused condensate drain connection cut-out holes in the
front panel to prevent air leakage.
Figure 15: Multiposition field conversion
6.7.3- Condensate drain
Coils are equipped with multiple drain connections. Determine the drain
connections to be used and note the difference between the primary
(green) and secondary (red) openings. Drain plugs are provided for all
openings; remove and discard the appropriate plugs with ½” drive ratchet
and verify that remaining plugs are tight (2.5 ft-lbs). Attach drain line to
pan with ¾” male pipe thread PVC fittings. Hand tight is adequate – do
not over tighten & do not reduce drain line size!
Route drain line(s) line so they will not be exposed to freezing temperatures
and do not interfere with accessibility to the coil, air handling system or
filter. The d
rain should be pitched downward 1” per 10’ with a 2” trap as
close to the coil as possible. If line makes a second trap, or has an extended
run before termination, a vent tee should be installed after the trap closest
to the pan. See Figure 16.
If the coil is located in or above a living space where damage may occur
from condensate overflow, a separate ¾” drain must be provided from the
secondary drain connection. Run this drain to a place in compliance with
local installation codes where it will be noticed when unit is operational.
Condensate flowing from the secondary drain indicates a plugged primary
drain. Prime the trap with water. Test line for leaks. Test water flow with
unit in operation. An auxiliary drain pan should also be installed under the
unit as specified by most local building codes.
Figure 16: Condensate drain