7
HORIZONTAL LEFT INSTALLATION
All RCQD-series coils are shipped for vertical and horizon-
tal left applications. Conversion is required for horizontal
right applications.
HORIZONTAL RIGHT INSTALLATION
(SEE FIGURE 4)
THE FOLLOWING COIL MODIFICATIONS MUST BE IMPLEMENTED:
1. Remove the entire front panel assembly by removing
all necessary screws.
2. Remove the refrigerant access panel from the front
panel and reinstall it with the right-hand side mounting
holes (see Figure 5).
3. Switch the positions of the left condensate plate and
right blank plate on the front panel.
4. Slide the coil outside of the coil box.
5. Remove the vertical bracket on the right side of the
vertical drain pan (see Figure 6).
6. Remove the horizontal drain pan and place it on the
right side of the coil (see Figure 7).
7. Re-install the vertical bracket on the left side of the
vertical drain pan.
8. Remove all screws from the top of the air stop (see
Figure 8).
9. Remove the center drain trough by removing the
screw located at the back triangular plate (see Figure
8). Ensure glue stop on the bottom of the drain trough.
10. Rotate the center drain trough 180°, front to back (see
Figure 9).
NOTE: Failure to properly rotate the center drain
trough may permit condensate water to blow off the
cooling coil.
11. Apply permagum supplied in parts bag to underside of
drain trough (see Figure 10) in four corners.
12. Re-install the center drain trough and secure it by
tightening the screw through the hole located on the
front triangular plate. Reinstall the top air stop.
13. Replace the coil assembly into the coil box (be sure to
align the vertical brackets properly with the side rail),
taking care not to tear insulation.
14. Locate TXV sensing bulb and slide it through the uni-
versal grommet on the access panel.
15. Reinstall front panel.
16. Seal the gap around the refrigerant lines with the per-
magum provided in the parts bag.
REFRIGERANT CONNECTIONS
Keep the coil connections sealed until refrigerant connec-
tions are to be made. See the Installation Instructions for
the outdoor unit for details on line sizing, tubing installation,
and charging information.
Install refrigerant tubing so that it does not block service
access to the front of the unit.
Use a brazing shield to protect the cabinet’s paint from
being damaged by torch flames.
Coil is shipped with a low (5 - 10 PSIG) pressure charge of
dry nitrogen. Evacuate the system before charging with R-
410A refrigerant.
TXV SENSING BULB
IMPORTANT: Do not perform any brazing with the TXV bulb
attached to the line.
After brazing operations have been completed, clamp the TXV
bulb securely on the suction line at the 2 o’clock position with
the strap provided in the parts bag.
Insulate the TXV sensing bulb and suction line with the provid-
ed pressure sensitive insulation (size 4” x 7”) and secure with
provided wire ties.
NOTE: TXV sensing bulb should be located on a horizontal
section of suction line, just outside of coil box.
CONDENSATE DRAIN TUBING
Consult local codes or ordinances for specific requirements.
IMPORTANT: When making drain fitting connections to drain
pan, use a thin layer of teflon paste, silicone or teflon tape and
install hand tight.
IMPORTANT: When making drain fitting connections to drain
pan, do not overtighten. Overtightening fittings can split pipe
connections on drain pan.
• Do not reduce drain line size less than connection size pro-
vided on condensate drain pan.
• All drain lines must be pitched downward away from the unit
a minimum of 1/8” per foot of line to ensure proper drainage.
• Do not connect condensate drain line to a closed or
open sewer pipe. Run condensate to an open drain or
outdoors.
• The drain line should be insulated where necessary to
prevent sweating and damage due to condensate form-
ing on the outside surface of the line.
• Make provisions for disconnecting and cleaning of the
primary drain line should it become necessary. Install a
2 in. trap in the primary drain line as close to the unit as
possible. Make sure that the top of the trap is below
connection to the drain pan to allow complete drainage
of pan (see Figure 5).
FIGURE 5
REFRIGERANT ACCESS PANEL
NOTE: WHEN CON-
VERTING TO HORIZON-
TAL RIGHT INSTALLA-
TION, USE THE RIGHT-
HAND SIDE MOUNTING
HOLES IN THE REFRIG-
ERANT ACCESS
PANEL
