Installation and Operation of: Refrigerated Back Counter
Duke Manufacturing Co.
2305 N. Broadway
St. Louis, MO 63102
Phone: 314-231-1130
Toll Free: 1-800-735-3853
Fax: 314-231-5074
www.dukemfg.com
MAINTENANCE
MAINTENANCE – Door Gasket Care
Gaskets require regular cleaning to prevent mold and mildew build up and also to keep the elasticity of the gasket.
Gasket cleaning can be done with the use of warm soapy water. Avoid full strength cleaning products on gaskets as
this can cause them to become brittle and prevent proper seals. Also, never use sharp tools or knives to scrape or clean
the gasket which could possibly tear the gasket and rip the bellows.
Gaskets can easily be replaced and do not require the use of tools or authorized service persons. The gaskets are “Dart”
style and can be pulled out of the grove in the door and new gaskets can be “pressed” back into place.
MAINTENANCE – Drain
Each unit has a copper drain tube located inside the unit which removes condensation from the evaporator coil and
deposits it onto a drain pan where it can evaporate (See Fig. 6). If you notice excessive water accumulation on the
inside of the unit be sure that the drain tube is connected from the evaporator housing to the condensate evaporator
drain pan. If water is collecting underneath the unit you may want to check the condensate evaporator drain tube
to be sure it is still located above the drain pan. The leveling of the unit is also important as the units are designed to
drain properly when on a level surface, if your floor is not level this can also cause drain problems. Be sure the drain
pan is kept free of dirt, dust and other debris as excessive amounts will cause water to back up and overflow from the
drain pan.
MAINTENANCE – Drain Pan Access
The drain pan and drain tube can be accessed from the rear of the unit. Pull the unit away from wall to expose the
opening in the rear of the cabinet. The drain pan is located under the refrigeration system unit (see fig. 6)
Drain tube location
Figure. 6