82 Direct-Fired Make-up Air • MUA-SVX01A-EN
Trouble Shooting
on the DFC and measure the voltage across terminals 5 and 6 with a
voltmeter. The meter should read between 20 to 24 volts. If it does not,
disconnect the wires from the valve and measure the output without the
valve connected. If it reads 20 to 24 volts, refer to the valve manufacturer
literature for troubleshooting the valve. If it does not read 20 to 24 volts,
the control may be damaged. Refer to the following chart for
troubleshooting suggestions.
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