Step 11 — Install All Accessories — After all of the factory-installed options have been adjusted, install all field-installed accessories. Refer to the accessory installation instructions included with each accessory. Consult the Carrier Price Pages for accessory package numbers for particular applications. The available field-installed accessories for the Centurion units are:

• economizer

• power exhaust

• barometric relief damper

14-in. roof curb

24-in. roof curb

• electric heaters

• enthalpy control

• differential enthalpy control

• plugged filter indicator

• carbon dioxide detector

• smoke detector

• filter status switch

• fan status switch

• condenser hail guard

• horizontal duct accessory

• thermostats

two-position damper

Fig. 20 — Bracket and Hood Positioning

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Carrier 50HG014-028 installation instructions Bracket and Hood Positioning