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General| Brand | EngA |
|---|---|
| Model | ENGINEERED AIR DJM2.4 |
| Category | Controller |
| Language | English |
Details the fundamental capabilities and characteristics of the DJM2.4 controller.
Explains the function of pots DCAL, BMSZ, CONT, SER, SP, and BMSS.
Details the function of pots CURVE, MINSP, Pot 9, and Pot 10.
Describes the meaning of the LED 1 status for pre-purge indication.
Explains the meaning of the LED 2 status for heat call indication.
Details the meaning of the LED 3 status for flame relay/ignition.
Explains how blowers and dampers are controlled externally to the DJM2.4.
Outlines the step-by-step process of burner ignition and operation.
Describes how to enter and utilize the service mode for troubleshooting.
Lists the different temperature control sources compatible with DJM2.4.
Details setup for DJM2.4 controlled by external DCV systems like C-TRAC.
Wiring instructions for BMS control using R and W terminals for older DJM.
Recommended wiring method for BMS control using '+' and '-' terminals.
Procedure for calibrating the TE6000 discharge air sensor.
Guidance on selecting between standard and high turndown burners.
General steps for setting up combustion for various burners.
Specific setup procedures for the standard (round) burner.
Specific setup procedures for the high turndown (rectangular) burner.
Instructions for setting up the pilot for high turndown burners.
Detailed steps for setting up the pilot for standard burners.
Troubleshooting fuse, control response, and sensor issues.
Methods for checking speed sensor function and approximate values.
Diagnosing issues when the pre-purge light indicates a problem.
Addresses problems with fan operation and solid-state control contacts.
Explains cold weather effects on discharge temperature and airflow.
Covers issues like smells, water in flue, and burner pulsing.
Troubleshooting ignition failures and service mode behavior.
Addresses gas pressure response and burner rumble during light-off.
Explains why the burner might stay on continuously.
Diagnosing issues where the burner remains on low fire.
Covers burner sooting causes and modulating valve sticking problems.
Notes on power vented flues, fan motors, and wheel replacement.
Field setup steps for burner application and control configuration.
Settings for integrating the DJM2.4 with BMS systems.
Specifications for combustion blower speeds for different burner types.
Voltages required for Maxitrol modulating gas valves to reach high fire.
Notes on DJM2 slaving from C-TRAC and SH steam humidifier application.
