Delfield 4000 Series Gasket Maintenance, Doors/Hinges, Drain Maintenance, Refrigeration cycle

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Compact Refrigerators and Freezers Service and Installation Manual

Maintenance Continued

If your freezer seems to vibrate excessively when the compressor is running, loosen (but do not remove) the bolts on the compressor. Semi hermetic models should be loosened before operating.

BASIC MAINTENANCE

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 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.

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 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 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.

Refrigeration cycle

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.

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.

See Defrost Cycle

For customer service, call (800) 733-8829, (800) 773-8821, Fax (989) 773-3210, www.delfield.com

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Contents Compact Refrigerators & Freezers Receiving And Inspecting The Equipment ContentsSerial Number Location Specifications ST4148Installation DrainageCaster Installation 400 & 4000 Series Caster/Leg Mounting DetailDoor Maintenance Temperature control instructionOperation DefrostingRefrigerators and Freezers Cleaning the Condenser CoilStainless Steel Care and Cleaning Gasket Maintenance Drain MaintenanceDoors/Hinges Refrigeration cycleWiring Diagram Refrigerators 400 and 4000 Series Wiring Diagram Freezers 400, 4100 and 4500 SeriesTwo Drawer Assembly D4532N/STD4532N/UCD4532NReplacement Parts List 4532N/ST4532N/UC4532NLabor Of 1-Hour Is Allowed To Replace Labor Of 2 Hours To ReplaceLabor Of 3 Hours To Replace Labor Of 4 Hours To ReplaceManufacturers Limited Lifetime Warranty What is coveredPlant and determined by Delfield to be within this warranty Page Delfield