Hussmann Low Temperature Self Contained Glass Door Merchandiser VRL1B

To maintain peak operating efficiency, the coil should be cleaned at least once each month. A dirty coil slows product cooling significantly and increases energy consumption by as much as 20%. Dirt buildup on coils can also cause the compressor to lock up damaging the condenser unit.

All VRL models have the same access panel design for commonality between merchandisers.

Loosen screws at each side of the front bottom grille, then lift up and pull off the grille.

Detach the merchandiser’s electrical wire harness.

Unscrew the stop bracket that holds the condensing unit to the rail base.

Grab the condensing unit from condensing unit handle. Use only the unit handle to pull out the refrigeration system. Pulling on refrigeration lines or other parts will cause damage to the refrigeration unit.

Use a soft hand brush attachment on a vacuum to remove accumulated dust and debris.

Consult an authorized service technician if more extensive cleaning is needed. If the refrigeration unit is damaged, it can be replaced with a new unit.

Sign off on the condenser coils cleaning

As part of an ongoing maintenance program for Innovator Doors, Hussmann recommends that the items below be checked annually.

b) Gasket performance (check for tearing and proper sealing)

c) Check the top hinge pin to ensure the pin is properly seated and not bent

d) Check the bottom hinge plate for excessive wear (worn cam teeth)

e) Proper operation of hold open brackets

1. Check the doors for proper closing torque:

Test 1: Open door 90 degrees and close it manually. Make sure the door opens and closes without binding.

Test 2: Open door 90 degrees and release it. The door should close on its own.

Power to the merchandiser disconnected

Screws at the top of the unit display removed

Merchandiser’s plexiglass panel removed

Cover display removed to access the LED fixture and LED power supply

LED replaced with like fixture, and connection re-attached

Power returned to the merchandiser

Sign off on the lamp replacement

Warning: This procedure requires careful attention to avoid warranty voidance.

All shipping retainers and packing material removed

Used flashlight to identify any gaps between frame and gasket

Enter the duration of energized circuits (in hours)

All gaps disappeared after energizing circuits

Followed the procedure for Restoring Gasket Seal if gaps remained

Initiated cooling sequence once gaps disappeared

Warning: Do not exceed 8 hours of energized circuits without refrigeration. Doing so may cause damage to the case and will void the warranty.

Sign off on the gasket condition check

Record any complaints or issues the store manager has with the unit

Check unit for any damage, vibrations or abnormal noise

Verify unit is level side to side and front to rear

Confirm refrigerant lines are properly secured and not touching or rubbing other lines, wires or framework

Verify fan motors and motor mounts are tight

Confirm fan blades are tight and not rubbing or hitting

Make sure all electrical connections, factory and field, are tight

Verify electrical connections at lamps are secure and dry

Check for and replace any frayed or chaffed wiring