Field Conversion Of Air Discharge - Carrier 50YDV Installation, Operation And Maintenance Instructions

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
refrigeration 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.
R e s i d e n t i a l P a c k a g e d U n i t s - 6 0 H z P u r o n

Field Conversion of Air Discharge

Figure 4: Left Return Side to Back
Water
Connection End
Side Discharge
Water
Connection End
Water
Connection End
Back Discharge
Figure 5: Right Return Side to Back
Return Air
Return Air
Drain
Discharge Air
R e v. : 4 J a n . , 2 0 1 2
Remove Screws
Return Air
Rotate
Return Air
Move to Side
Replace Screws
Return Air
Drain
Discharge Air
Supply Duct
Side Discharge
Connection End
Back Discharge
®
Water
Connection End
Water
7