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E04 High Limit RH Under Range
Check for lost signal from the Hi-Limit Humidistat or Building Management
System. Verify that Menus 502, 508, 509, & 510 match the type of input
Check signal at the input terminals:
Terminal J4-5 = Voltage (+) Input
Terminal J4-7 = Voltage (-) / Current (-) Input
Terminal J4-6 = Current (+) Input
E04 High Limit RH Over Range
Input signal is greater than menu 510 value
E04 High Limit RH Calibration
Input not calibrated properly
E04 High Limit AD Underflow - AD Overflow
Check for REVERSE polarity or EXCESSIVE SIGNAL on the input terminals:
Terminal J4-5 = Voltage (+) Input
Terminal J4-7 = Voltage (-) / Current (-) Input
Terminal J4-6 = Current (+) Input
E05 Outdoor Air AD Underflow
Air temperature sensor circuit open. Check for correct polarity.
Check signal at the input terminals:
Terminal J7-2 = Current (-) Input
Terminal J4-3 = Current (+) Input
E05 Outdoor Air AD Overflow
Input signal is greater than 20 mA
E05 Outdoor Air Over Range
Input signal is greater than menu 513 value
E05 Outdoor Air Under Range
Input signal is less than menu 512 value
E05 Outdoor Air Calibration
Input not calibrated properly
E06 H2O Temperature Over Range
Water temperature is above 260°F
E06 H2O Temperature Under Range
Water temperature is below –13°F
E06 H2O Temperature Calibration
Input is outside of calibration
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