Troubleshooting - Duke HCSS-LH Installation And Operation Manual

Soup station holding unit

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Table Of Contents

Table of Contents

Installation and Operation of: Soup Station Holding Unit

There are no user serviceable parts on the Duke Dry Channel Holding Unit. If a malfunction

occurs, then check all switches and circuit breakers. Check rating label and confirm that unit

is operating at the proper voltage. If the malfunction still exists, contact your Duke Manufac-

turing Company authorized service agent or call 1-800-735-3853.

The control will display a Heating Error under certain conditions. It provides an indication to

alert the operator to failures in the heater circuit. A buzzer will sound for one second every 30

seconds. The operator can cancel the alarm with the push of any button. The alarm will re-

activate after twenty minutes. When a Heating Error is displayed, the affected well should not

be used until a qualified service technician corrects the cause of the fault. The control will

automatically shut down the affected well. The fault conditions that could cause the control

to display a heating error are as follows:

1. Over – Temperature Fault - An over-temperature fault occurs when the control senses

that the well temperature is higher than the specified factory preset temperature. This

occurs when the power is not removed from the heating element after the channel has

achieved the preset temperature, causing the control to display the error "HIX" where "X"

is the zone with the fault. (1 – 4). The auxiliary thermostat prevents the temperature from

exceeding safe levels by regulating the temperature to a maximum of 375

2. Under – Temperature Fault - An under-temperature fault occurs when the control senses

that the well temperature is lower than the specified factory preset temperature for more

than 30 minutes continuously. This occurs when heating element circuit opens or the

RTD Feedback signal is faulty. The display will read "LOX" where "X" is the zone with the

fault (1 – 4).

3. Sensor Failure - A temperature sensor fault occurs when the control senses a short circuit

or open circuit condition in the temperature sensor circuit. The display will read "PRX"

where "X" is the zone with a bad probe (1 - 4). The control will display "000" for the tem-

perature of the channel in a fault condition.