Processor Control Board Replacement Prior to 208 Software - 2100/3100/4100/5100 Series
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Processor Control Board Replacement - 2100/3100/4100/5100 Series

THIS PROCEDURE MUST BE PERFORMED BY A QUALIFIED TECHNICIAN.

Applicable to non-current replacement parts with software version V2.04 and earlier.

See here for Processor Control Boards with V2.08 and later

NOTE: If possible, record the Configuration settings before removing the existing processor control board. This will aid in the installation of the new processor control board. Reference the Configuration Menu for 2100 or 3100, 4100, 5100 series.

yellow triangle with lightning boltWARNING

HAZARDOUS VOLTAGE: Risk of electric shock. Can cause injury or death. Heater may be connected to more than one branch circuit. Disconnect power to all circuits before servicing.

De-energize Heater

 De-energize the Steffes heating system and remove the electrical panel cover (painted front panel on 2100 Series)

Disconnect Thermocouple

Disconnect the red and yellow thermocouple wires from the existing control board. It is extremely important to note the position of these wires.

NOTE: These thermocouple wires MUST be positioned correctly to ensure proper operation of the system.

Disconnect Wiring Harness

Disconnect the wiring harness(es) and the interface cable from the existing control board.

Remove Control Board

Remove the existing control board from the mounting bracket.

Install New Control Board

Mount the new control board on the existing bracket and connect the wiring harness(es) and interface cable in the proper positions.

Reconnect Thermocouple

Reconnect the thermocouple wires.

NOTE: The thermocouple wires MUST be positioned correctly to ensure proper operation of the system.

System Set Up

 System Configuration

Energize the system and use the following information to complete the system setup:

2100 SERIES

The replacement circuit board is shipped with a 2100 Series set up installed.

2102:

Set Location 29 (L029) to a value of 20 and configure the system.

2103:

Configure the system.

2104:

Configure the system.

2105:

Configure the system.

2106:

Set Location 29 (L029) to a value of 200 and configure the system.

3100 SERIES

3120:

Set Location 98 (L098) to a value of 30 and configure the system.

4100 SERIES

4120:

Set Location 98 (L098) to a value of 40 and then set Location 92 (L092) to a value of 1. Configure the system.

4130:

Set Location 98 (L098) to a value of 40 and then set Location 91 (L091) to a value of 6. Configure the system.

4140:

Set Location 98 (L098) to a value of 40 and configure the system.

5100 SERIES

5120:

Set Location 98 (L098) to a value of 50 and then set Location 92 (L092) to a value of 1. Configure the system.

5130:

Set Location 98 (L098) to a value of 50 and then set Location 91 (L091) to a value of 6. Configure the system.

5140:

Set Location 98 (L098) to a value of 50 and configure the system.

208V Configuration

If installing this control board in a system with 208V input power on the control circuit, change the value in Location 16 (L016) to 210.

Save Current Configuration

Once the system has been properly configured, set Location 98 (L098) to a value of 99.

System Check-Out

Verify that the system is operating properly.