Field Conversion Of Air Discharge; Series - Heat Controller HTV Series Installation, Operation & Maintenance Manual

Installation, Operation & Maintenance

Field Conversion of Air Discharge

Overview - Horizontal units can be fi eld converted between side
(straight) and back (end) discharge using the instructions below.
Note: It is not possible to fi eld convert return air between left or
right return models due to the necessity of refrigeration copper
piping changes.
Preparation - It is best to fi eld convert the unit on the ground
before hanging. If the unit is already hung it should be taken down
for the fi eld conversion.
Side to Back Discharge Conversion
1. Place unit in well lit area. Remove the screws as shown in
Figure 4 to free top panel and discharge panel.
2. Lift out the access panel and set aside. Lift and rotate the
discharge panel to the other position as shown, being careful
with the blower wiring.
3. Check blower wire routing and connections for tension or
contact with sheet metal edges. Reroute if necessary.
4. Check refrigerant tubing for contact with
other components.
5. Reinstall top panel and screws noting that the location for
some screws will have changed.
6. Manually spin the fan wheel to ensure that the wheel is not
rubbing or obstructed.
7. Replace access panels.
Back to Side Discharge Conversion - If the discharge is changed
from back to side, use above instruction noting that illustrations will
be reversed.
Left vs. Right Return - It is not possible to fi eld convert return air
between left or right return models due to the necessity of refrigera-
tion copper piping changes. However, the conversion process of
side to back or back to side discharge for either right or left return
confi guration is the same. In some cases, it may be possible to
rotate the entire unit 180 degrees if the return air connection needs
to be on the opposite side. Note that rotating the unit will move the
piping to the other end of the unit.
HTV/HTD/HTH SERIES
Figure 4: Left Return Side to Back
Water
Connection End
Water
Connection End
Water
Connection End
Figure 5: Right Return Side to Back
Return Air
Drain
Discharge Air
7
Remove Screws
Side Discharge
Rotate
Move to Side
Replace Screws
Back Discharge
Return Air
Supply Duct
Side Discharge
Back Discharge
Heat Controller, Inc.
Return Air
Return Air
Return Air
Drain
Discharge Air
Water
Connection End
Water
Connection End