Rheem RRNA-B SERIES, Installation Instructions Manual

Page: 27 / 60

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Re-assembly
1. Place the condenser coil protective grille back on unit and replace all screws.
2. Place top pane back on unit and replace all screws.
3. Set condenser fan grille assembly on top of the unit with the fan on top and the
motor wires on the venturi side. Run the fan motor wires through the bulkhead and
pull wires through the hole on the bottom of the control box on the left side and into
the control box. Reconnect fan motor wires per the wiring diagram attached to the
back of the control box cover.
4. Replace wire strain relief in bulkhead after the slack is pulled out of the wires on the
fan side. This will assure wires will not be damaged by the fan during unit operation.
5. Turn the condenser fan grille assembly over and into the recess in the unit top.
Secure the grille to the unit with the four long #8 screws removed earlier.
6. Replace the circulating air blower, making sure that all wires are properly reconnect-
ed per the unit wiring diagram.
7. Replace the filter and blower/evaporator coil access panels.
8. Replace the control box cover and controls access panel.
9. Restore electrical power to the unit and check for proper operation, especially the
condenser fan motor.
REPLACEMENT PARTS
Contact your local distributor for a complete parts list.
TROUBLESHOOTING
Refer to Troubleshooting Chart included in this manual.
WIRING DIAGRAMS
Refer to the appropriate wiring diagram included in this manual.
CHARGING
Refer to the appropriate charge chart included in this manual.
BLOWER MOTOR SPEED TAPS
After determining necessary CFM and speed tap data, follow the steps below to change
speeds.
1. Remove the furnace/control access panel.
2. Remove the control box cover. See Figure 21 for location of the furnace control
board.
3. Reference Figure 22 for the proper location of the red and black wires on the speed
tap block and on the furnace control board to obtain the speed tap you have chosen.
4. After adjusting the wires accordingly, attach the control box cover, furnace control
access panel and the blower access panel to the unit.
FIGURE 2
1
INTEGRATED FURNACE CONTROL BOARD