Delfield 406-CA Installation Instruction

9

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.

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 qualifi ed service agents or maintenance 

personnel.

Each unit has a drain located inside the unit which removes the 

condensation from the evaporator coil and evaporates it at 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 when on a level surface, 

if your fl oor 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 overfl ow the drain pans.

Refrigerators: During the refrigeration cycle the evaporator fans 

will run continuously with the exception of door openings.  The 

door switch will activate the lights when opened and turn power 

off to the evaporator fan motors.

1.     The  temperature  control  allows  for  the  evaporator  coil  to 

clear after each off cycle and before the compressor runs 

again.

Freezers:  During  the  refrigeration  cycle  the  timer 

supplies  power  to  the  temperature  control  (for  power  to 

the  condensing  unit)  and  evaporator  fan  motors.    The 

evaporator fans will run at any time when the compressor 

is running, they will also cycle off during door openings and 

during a defrost period.  The door switch will activate the 

lights when opened and turn power off to the evaporator 

fan motors.

1.    See Defrost Cycle