Carrier 40MBAA Installation Instructions Manual page 9

ELECTRIC AUXILIARY HEAT MODULE
INSTALLATION AND WIRING
1. Remove the six screws securing the upper cover plate and the
chassis.
Fig. 21 — Upper Cover Plate
2. Remove the four screws securing the electric auxiliary heat cover
plate and the upper cover plate.
Fig. 22 — Electric Auxiliary Heat Module Plate
3. Remove the screws and the sheet-metal cover(s) reserved for the
electric heating module.
NOTES:
• For model 5KW, 10KW, remove three screws from the upper
sheet metal cover only.
• For model 15Kw, 20KW, remove the upper and lower sheet
metal covers.
Upper Sheet Metal Cover
Lower Sheet Metal Cover
Fig. 23 — Remove Sheet Metal Covers
4. Insert the heating module into the opening made by removal of the
sheet metal cover(s). Ensure the two support rod ends are on the
opposite bulkhead.
Fig. 24 — Insert Heating Module
IM-40MBAA-02
5. Use the 3 screws (6 screws for 15K or 20K) removed previously
and fasten the outer cover of the module into the access hole.
Fig. 25 — Install the Electric Heating Module
6. Secure one end of the electric heating terminal board to the sheet
metal slot close to the fan, and the other end to the sheet metal on
the top cover plate with two screws.
7. Secure the 2 tabs on the Power Terminal mounting bracket in the
slots provided and fasten the lower tabs with 2 screws.
Fig. 26 — Electrical Heating Terminal
8. Remove the cover for the electronic controls. After completing the
following steps, the cover needs to be re-installed.
Fig. 27 — Remove the electronic control box
Specifications subject to change without notice.
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