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States the necessity of grounding and correct polarity for safety.
Explains methods to check input rate: manifold pressure or clocking gas meter.
Explains the function of the blower compartment door interlock switch as a safety device.
Describes the main limit switch, its function, and troubleshooting.
Explains the rollout limit switch and its purpose for flame rollout protection.
Lists steps to test cooling and heating functions of the ST9120.
Details the operation and troubleshooting of the S8600M spark to pilot ignition system.
Details criteria for selecting heating blower speed based on temperature rise and CFM.
Explains criteria for selecting cooling blower speed based on CFM per ton and ESP.
General| Brand | Inter-City Products |
|---|---|
| Model | NUG5 |
| Category | Furnace |
| Language | English |
