Service and Installation Manual
8
MAINTENANCE
Cleaning solutions need to be alkaline based or non-chloride cleaners. Any cleaner containing chlorides will
damage the protective film of the stainless steel. Chlorides are also commonly found in hard water, salts, and
household and industrial cleaners. If cleaners containing chlorides are used, be sure to rinse repeatedly and
dry thoroughly upon completion.
Routine cleaning of stainless steel can be done with soap and water. Extreme stains or grease should be cleaned
with a non-abrasive cleaner and plastic scrub pad. It is always good to rub with the grain of the steel. There are
also stainless steel cleaners available which can restore and preserve the finish of the steels protective layer.
Early signs of stainless steel breakdown can consist of small pits and cracks. If this has begun, clean
thoroughly and start to apply stainless steel cleaners in attempt to restore the passivity of the steel.
Never use an acid based cleaning solution
！
Many food products have an acidic content
which can deteriorate the finish. Be sure to clean the stainless steel surfaces of ALL food
products. Common acidic items include tomatoes, peppers and other vegetables.
Gasket Maintenance
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 don
’t require the use of tools or authorized service persons. The gaskets
are "Dart" style and can be pulled out of the groove in the door and new gaskets can be "pressed" back into
place.
Doors/Hinges
Over time and with heavy-use doors, the hinges may become loose. If it is noticed that the door is
beginning to sag, it may become necessary to tighten the screws that mount the hinge brackets to the
frame of the unit. If the doors are loose or sagging, this can cause the hinge to pull out of the frame
which may damage both the doors and the door hinges. In some cases, this can require qualified service
agents or maintenance personnel.
Drain Maintenance
Each unit has a drain located inside the unit which removes the condensation from the evaporator coil and
evaporates it into an external condensate evaporator pan. Each drain can become loose or disconnected
from moving or bumping the drain. If you notice excessive water accumulation on the inside of the unit, be
sure the drain tube is connected from the evaporator housing to the condensate evaporator drain pan. If
water is collected underneath the unit, you may want to check the condensate evaporator drain tube to be
sure it is still located inside the drain pan. The leveling of the unit is important as the units are designed to
drain properly on a level surface. If your floor is not level, this can also cause drain problems. Be sure all
drain lines are free of obstructions. Typically, food product is found blocking drain lines causing water to back
up and overflow the drain pans.