Carrier WeatherExpert 48N2 Controls, Start-Up, Operation, Service, And Troubleshooting page 108

Packaged rooftop cooling units with gas heat, optional electric heat, or hydronic heat and comfortlink controls version 10.x
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LEGEND
IDM — Induced-Draft Motor
IGC — Integrated Gas Unit Controller
NOTE: Thermostat Fan Switch is in the "AUTO"
position.
Fig. 16 — IGC Service Analysis Logic
108

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