Specifications

Dekker Vacuum Technologies, Inc. – DuraVane/12 10
SYSTEM ALARM CONDITIONS NFPA 99
The following is a description of how alarm conditions will affect the operation of medical systems
compliant to NFPA 99.
If a “Lag pump in operation” alarm is installed in the panel, observe the following. Such an
alarm is standard with medical packages. The alarm consists of a warning light and an audible
alarm. The alarm will trigger when the “lag” pump starts up. The alarm will not affect the
operation of the system. The light will illuminate and the alarm will sound. The audible alarm can
only be silenced by physically (or remotely) pushing the ALARM SILENCE button. This will not
stop the LAG PUMP ON light from illuminating. The light can be reset by physically (or remotely)
pressing the ALARM RESET button.
Note: If the lag pump is still operating when the ALARM SILENCE or ALARM RESET buttons are
pressed, the alarm will continue to sound. The alarm will only reset if the lag pump is not running.
“Transformer failure” lights (optional) are only installed if more than one control voltage
transformer is supplied. If the TRANSFORMER FAILURE light is illuminated, one of the
transformers has malfunctioned and the second one has picked up. As long as a back-up
transformer is available, the above alarm will not affect the operation of the system. If both
transformers fail, the system will shut down.
“High temperature” light (optional). If the HIGH TEMPERATURE light illuminates, the affected
pump will shut down unless otherwise specified at time of purchase of the equipment. The back-
up pump(s) will continue to operate unless a high temperature (or other) alarm occurs in those
pump(s).
“Low oil level” light (optional). If the LOW OIL LEVEL light is illuminated, the affected pump will
shut down. The back-up pump(s) will continue to operate unless a similar condition occurs in
those pump(s).
MAINTENANCE
WARNING: Before attempting any maintenance such as changing the fluid, disconnect all
power from the unit by switching off the main breaker or disconnect switch. This will prevent
the unit from automatically starting from a vacuum switch.
Pump oil level (Check daily):
Under normal circumstances it should not be necessary to add oil between recommended oil changes.
A significant drop in oil level means there is an oil leak, a broken exhaust filter or a leaking anti-suck-
back or inlet check valve.
It is normal for the oil to be slightly foamy and lightly colored. If the oil is milky or dark colored, it is
burned or contaminated and must be changed.
Check the oil level only when the pump is shut off. The best time to check is before start-up.
Replenish oil if the level drops below the MIN. line next to the sight glass. Oil must be added through
the fill port only.
CAUTION: Do not add oil while pump is running, since hot oil can escape from the fill opening.
Be careful when draining hot oil, personal injury could result.
Oil change
When using the factory recommended specially formulated Standard Duratex oils, change every 6
months or 1000 hours of operation, whichever comes first. When using Duratex Synthetic Long-life
oil, change oil every 6 months or 2000 hours, whichever comes first. If other oil must be used, rather
than Duratex specially formulated oil, change every 2-3 months or 500 hours. Drain oil by removing
drain plug. Note: using oils other than Duratex oils may damage the pump and will result in a
shortened warranty period.
CAUTION: A more frequent oil change might be required if the oil becomes milky or dark
colored. A dark color is a sign of oxidation and varnishing which would reduce the life of the
pump, vanes and exhaust filters. Our specially formulated Duratex oils are generally far more
resistant to oxidation than normal motor oils.