4
OM-RR REACH-INS
MAINTENANCE
DANGER: THE UNIT MUST BE TURNED OFF AND DISCONNECTED FROM
THE POWER SOURCE WHENEVER PERFORMING SERVICE, MAINTENANCE
FUNCTIONS OR CLEANING THE REFRIGERATED AREA.
DANGER: NEVER USE A HIGH PRESSURE WATER WASH FOR THIS CLEANING
PROCEDURE AS WATER CAN DAMAGE THE ELECTRICAL COMPONENTS
LOCATED NEAR OR AT THE CONDENSER COIL.
DANGER: NEVER USE STEEL PADS, WIRE BRUSHES OR SCRAPERS!
CAUTION: 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.
REFRIGERATORS AND FREEZERS
The interior and exterior can be cleaned using soap and warm water. If this isn’t
sufficient, try ammonia and water or a nonabrasive liquid cleaner. When cleaning
the exterior, always rub with the “grain” of the stainless steel to avoid marring the
finish.
Do not use an abrasive cleaner because it will scratch the stainless steel and
plastic and can damage the breaker strips and gaskets.
CLEANING THE CONDENSER COIL
The condenser coil requires regular cleaning and it is recommended every 90
days. In some instances, you may find that there is a large amount of debris and
dust or grease accumulated prior to the 90 day time frame. In these cases the
condenser coil should be cleaned every 30 days.
If the build up on the coil consists of only light dust and debris, the condenser coil
can be cleaned with a simple brush. Heavier dust build-up may require a vacuum
or even compressed air to blow through the condenser coil.
If heavy grease is present, there are de-greasing agents available for refrigeration
use and specifically for the condenser coils. The condenser coil may require
cleaning with the de-greasing agent and then blown through with compressed air.
Failure to maintain a clean condenser coil can initially cause high temperatures
and excessive run times. Continuous operation with dirty or clogged condenser
coils can result in compressor failures. Neglecting the condenser coil cleaning
procedures will void any warranties associated with the compressor or cost to
replace the compressor.
STAINLESS STEEL CARE AND CLEANING
To prevent discoloration of rust on stainless steel several important steps need to
be taken. First, we need to understand the properties of stainless steel. Stainless
steel contains 70-80% iron which will rust. It also contains 12-30% chromium
which forms an invisible passive film over the steels surface which acts as a
shield against corrosion. As long as the protective layer is intact, the metal is still
stainless. If the film is broken or contaminated, outside elements can begin to
breakdown the steel and begin to form rust of discoloration. Proper cleaning of
stainless steel requires soft cloths or plastic scouring pads.
Cleaning solutions need to be alkaline based or non-chloride based. Any cleaner
containing chlorides will damage the protective film of the stainless steel. Chlorides
are commonly found in hard water, salts, and household and industrial cleaners. If
cleaners containing chlorides are used, be sure to rinse and dry thoroughly.
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 steel’s
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.
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. Do not 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 technicians. The gaskets are “Dart” style and can be pulled out of the grove
in the door and replaced by pressing the new one back into place.
DOORS/HINGES
Over time and with heavy use, door hinges may become loose. If the door is
beginning to sag, 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.
DRAIN MAINTENANCE
Each unit has a drain located inside the unit which removes the condensation
from the evaporator coil and drains it into an external condensate evaporator
pan. Drain line can become loose or disconnected from moving or bumping the
drain tube. 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 starts to collect 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 when 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 because this may
cause water to back up and overflow the drain pans.
REPLACEMENT PARTS
To order parts, contact your Authorized Service Agent. Supply the model
designation, serial number, part description, part number, quantity, and when
applicable, voltage and phase.
CONTACT US
If you have questions pertaining to the content in this manual, contact Unified
Brands at 888-994-7636.
