035-000051-001 Page 14 of 60 MMD IOM 1.2 11-10-2020INSTALLATION—ELECTRIC HEATElectric Heater AccessoryThe electric heater may be factory-installed orfield-installed. See Figures 5 through 8.Removal Procedure:To remove the electric heater,1. Disconnect and lock out electrical powerfrom the unit. Remove heater access panel.Disconnect power wires from the powerswitch—DANGER! - MAKE SURE there is novoltage on these wires before disconnecting!2. Disconnect 2 harness connectors at theblower deck.3. Remove 2 screws holding heater supportfeet to the blower deck.4. Remove 4 screws that mount the heater tothe heater bulkhead. Handle heater carefullyto avoid damaging the wire heating elements.Remove heater from the unit.DANGERWARNING: Hazardous voltage. Only qualifiedpersonnel must install the electrical service. Dis-connect and Lock Out all incoming power sourcesbefore connecting to electrical service.WARNING: This appliance must be permanentlygrounded in accordance with the National ElectricalCode and local code requirements.WARNING: For use with copper conductors only.Fig. 5 — Heater Accessory Installed(right side panel not shown)Fig. 6 — Heater Accessory Installed(right side and heater access panelsnot shown)