Tyler Refrigeration N7DNL, Installation & Service Manual

Installation & Service Manual

N7DNL, NHD

June, 2007

Page 21

SERVICE INSTRUCTIONS

See “General-UL/NSF I&S Manual” for T-8
lamp, canopy ballast, fan blade and motor,
and color band and bumper replacement
instructions.

Ballast and Lighting Locations

All light ballasts are located under the canopy
and mounted above or on the top of the
canopy light channel.  This includes remote
ballasts for optional nose lights (all models)
and optional shelf lights (NHD models only).
The canopy light(s) are under the canopy
light channel in the top of the case.  

TYLER 8 and 12 foot cases have four foot
sections for merchandising.  6 foot cases
have three foot sections for merchandising.
Further guidelines for section to section mer-
chandising are listed below:

There are three basic ways that peg bars
are used in our cases:

All peg bars at the same elevation:

TYLER

recommends that peg bar rows in adjacent
sections of a case (including baffles) be
installed at the same elevation.  This will
ensure that air flow from the perforated rear
duct panels flows in and around the food
products displayed on the pegs to best 
maintain the foods at the desired core 
product temperatures.

Peg bars at different elevations:

If you

choose this merchandising method, TYLER
recommends that a vertical plexiglas partition
be installed between the adjoining sections.
This will ensure that air flow from the perforat-
ed rear duct panels flows in and around the
food products displayed on the pegs to best
maintain the foods at the desired core 
product temperatures.

Peg bars adjacent to TYLER shelving:

TYLER recommends a vertical plexiglas 
partition be installed between the adjoining
sections.  This will ensure that air flow from
the perforated rear duct panels flows in and
around the food products displayed on the
pegs to best maintain the foods at the
desired core product temperatures.