Heat Controller A-13 Replacement Parts, Troubleshooting, Wiring Diagrams, Charging

Models: A-13

1 56
Download 56 pages 46.58 Kb
Page 24
Image 24
REPLACEMENT PARTS

4.If the coil is coated with oil or grease, clean it with a mild detergent-and-water solu- tion. Rinse the coil thoroughly with water. IMPORTANT: Do not use excessive water pressure. Excessive water pressure can bend the fins and tubing of the coil and lead to inadequate unit performance. Be careful not to splash water excessively into unit.

5.The venturi should also be inspected for items of obstruction such as collections of grass, dirt or spider webs. Remove any that are present.

6.Inspect the circulating air blower wheel and motor for accumulation of lint, dirt or other obstruction and clean it necessary. Inspect the blower motor mounts and the blower housing for loose mounts or other damage. Repair or replace if necessary.

Re-assembly

1.Place the condenser top panel back on the unit and replace all screws.

2.Run the fan motor wires through the hole in the bottom of the control box. Reconnect fan motor wires per the wiring diagram attached to the back of the cover.

3.Replace the filter and blower/evaporator coil access panels.

4.Replace the control box cover and controls access panel.

5.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 from the Airflow Performance Data, follow the steps below to change speeds.

1.Remove the blower access panel.

2.Reference Figure 20 for location of the speed tap block on the blower.

3.Remove the furnace control access panel.

4.Remove the control box cover. See Figure 21 for location of the integrated furnace control board.

5.Reference Figure 22 for the proper location of the red and black wires on the speed tap block and on the furnace integrated control board to obtain the speed tap you have chosen.

6.After adjusting the wires accordingly, attach the control box cover, furnace control access panel and the blower access panel to the unit.

24

Page 24
Image 24
Heat Controller A-13 Replacement Parts, Troubleshooting, Wiring Diagrams, Charging, Blower Motor Speed Taps