Herrmidifier Herrtronic AD, Руководство пользователя

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Herrtronic AD Series Installation, Operation and Service Manual
NON-FAULT ACTIVATED PROBLEMS:
Problem / Symptom Reason - Correction
Check drain valve and insure that water drains freely. If necessary,
clean or replace coil or valve if defective.
Check water supply. If it is commercially softened, reconnect the unit
to a raw water supply, drain the cylinder, and either restart the unit OR
increase the drain threshold to 90%/ after draining the unit and restart.
If the unit is connected to a hot water line, reconnect to the cold water
supply.
Observe the fill tee. If water is going down the overflow and the water
level is low:
a. Check to insure that static pressure in the duct is not forcing
water down the overflow instead of allowing the water to
enter the cylinder.
b. Adjust the metering valve on the fill solenoid to regulate the
water flow to the cylinder.
Water “foaming” inside cylinder energizes cylinder full light.
Unit filling slower or at the same rate as it is boiling off causing over-
concentration and foaming:
a. Fill rate must be increased. Open metering valve on fill
solenoid.
b. If “A” is not possible, get a water sample or water analysis
and consult factory
Check the wiring at 24 VAC fuses for a short or loose connection.
Check to make sure the capacity resistor is in main board socket R4. Main 24 volt fuses blow. “Fault” light comes on as soon as the
humidifier is switched on.
Remove contactor coil from circuit and repeat. If 24 VAC fuses don’t
blow, replace contactor.
Remove fill solenoid from circuit. If fuses remain intact, replace the fill
solenoid coil.
Main 24 VAC fuses blow after humidifier is turned on for about 15
seconds
Replace the main circuit board
Check amp draw to unit on initial start-up. If reading exceeds amp
rating by more than 20%, the low drain threshold, pot (Figure 23) on
the circuit board should be increased 2% on ADM’s and 5% on ADS’
to cause the unit to drain more frequently and hence reduce the
conductivity of the water in the tank. Manually drain humidifier and
restart.
Turn the capacity adjustment pot slightly counterclockwise. This will
provide a buffer between the unit normal amp maximum and the
overload amp level, a necessity with extremely conductive fill water.
Obtain a water analysis and consult the factory.
Humidifier goes into fault shortly after start-up.
Check the fuses.
Open the drain valve and insure that it is clean and free of any
obstructing mineral deposits.
Remove drain solenoid from circuit. If fuses remain intact, replace the
drain solenoid coil.
Main fuses blow when the drain valve activates.
Replace the main circuit board
Check fuses and replace if faulty
Humidifier turned on, but will not operate
Insure that 24 VAC is reaching pole #9 connector J1 (Figure 23). If
not, check wiring.
Check external shutoff valves and open if closed.
Check that fill solenoid coil is receiving 24 VAC. If yes, replace the
solenoid.
Check for break in wiring
Unit turned on. Contactor is pulled in, but not water enters the
cylinder.
Replace the circuit board