Tyler Refrigeration N7DNL, Installation & Service Manual

Installation & Service Manual

N7DNL, NHD

June, 2007

Page 15

CLEANING AND SANITATION

Component Removal and 
Installation Instructions for
Cleaning

Shelves and Shelf Brackets

1. Remove product from shelves.

2. If shelf has a light, unplug the light cord

from the socket in the rear duct panel.
Completely insert socket cover in the light
socket to protect the receptacle.

3. Push shelves back and then lift up and out

to remove them from the shelf  brackets.

4. Remove shelf brackets from slots in rear

uprights.

5. After cleaning, replace in reverse order.

Bottom Trays

1. Remove product from bottom of case.

2. Grasp and lift out each of the bottom trays

from the case interior.

3. After cleaning, replace in reverse order.

Front Air Ducts

1. Remove lower trays, see this page.

2. Lift out front air duct sections.

3. After cleaning, replace in reverse order.

Rear Duct Panels 
(w/o Shelf Light Sockets)

1. Remove shelves and bottom trays, see

above.

2. Remove mounting screws and rear duct

panels from case.

3. After cleaning, replace and secure rear

duct panels in reverse order.

(with Shelf Light Sockets)

1. Remove shelves and bottom trays, see

above.

2. For cases with 5 rows of lighted shelves,

remove screw above top shelf socket and
push socket assembly back through the
hole in the rear duct panel.

3. Remove mounting screws from rear duct

panel.

4. Slowly lift out rear duct panel until the

shelf harness connector near the top of
the panel can be accessed.

5. Disconnect shelf harness connector and

complete removing the rear duct panel.

WARNING

Rear duct panels with electrical recepta-
cles can be cleaned without removing the
electrical receptacles.  Do not get moisture
on electrical wires when cleaning under
this cover.  Moisture on wires could cause
premature product failure and/or personal
injury or death from electrical shock.

6. After cleaning, reconnect the shelf 

harness connector: install the top socket
assembly: replace and secure rear duct
panels in reverse order.

Discharge Air Honeycomb

1. Loosen screws securing rear retainer

plate.

NOTE

Note position of the honeycomb grid 
during removal so it can be reinstalled the
same way.

2. Slide rear retainer plate back until the

honeycomb grid sections can be removed
from the top duct.

CAUTION

Improper installation of the honeycomb
grid section could result in improper air
flow and/or poor refrigeration.

3. After cleaning, replace honeycomb grid

sections as they were removed and
secure with the rear retainer plate and
screws.

Top Duct

1. Remove shelves and shelf brackets, see

above.

2. Remove screws, rear retainer plate and

honeycomb grid sections from top of
case.

3. Remove screws and top duct from case.

4. After cleaning, replace top duct and

remaining components in reverse order.