Tyler Advantage N6DHPLLR Supplement

N6DHPL(LR), N6DHPM(MR), N6DHPH
This manual has been designed to be used in conjunction with the
General (UL/NSF) Installation Service Manual.
Save the Instructions in Both Manuals for Future Reference!!
This merchandiser conforms to the American National Standard Institute & NSF International Health and Sanitation standard ANSI/NSF 7 - 2003.
RINTED IN Specifications subject to RE LACES ISSUE ART
IN U.S.A. change without notice. EDITION 8/05 DATE 12/05 NO. 9037176 REV. D
Tyler Refrigeration * Niles, Michigan 49120
HIGH PERFORMANCE MULTI-SHELF MERCHANDISER
Medium Temperature Self Serve Display Cases
Installation & Service
Manual

CONTENTS
N6DHP(L, M, H, LR, MR) Tyler Refri eration
Page 2 August, 2005
Page
Specifications
N6DH L / N6DH M / N6DH H / N6DH LR / N6DH MR
Specification Sheets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pre-installation Responsibilities . . . . . (See General-UL/NSF I&S Manual)
Installation Procedures
Carpentry Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Case ull-Up Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Joining Rear Load Cases to Coolers . . . . . . . . . . . . . . . . . . . . . . . . . 7
Refrigeration Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Electronic Thermostat Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Electrical Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Plumbing Procedures . . . . . . . . (See General-UL/NSF I&S Manual)
Defrost Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Defrost Control Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Installation Procedure Check Lists (See Gen.-UL/NSF I&S Manual)
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
N6DHP(L/M/H/LR/MR) Domestic Export (50Hz) Case Circuits 10
Cleaning and Sanitation . . . . . . . . . . . (See General-UL/NSF I&S Manual)
Component Removal and Installation Instructions for Cleaning 13
Shelves and Shelf Brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Bottom Trays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Front Air Ducts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Rear Duct anels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Discharge Air Honeycomb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Top Duct . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Front Cladding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Installation & Service Manual N6DHP(L, M, H, LR, MR)
August, 2005 Page 3
Page
General Information
NSF Product Thermometer Installation . . . . . . . . . . . . . . . . . . . 14
Egg Merchandiser Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Peg Bar Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Peg Bar Information for Cannon Magna Peg Bar Display
Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Rear Load Air Close-Off Information (N6DHPLR/N6DHPMR) . . 17
Service Instructions
Preventive Maintenance . . . . . . (See General-UL/NSF I&S Manual)
Ballast and Lighting Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Parts Information
Cladding and Trim Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Operational Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
TYLER Warranty . . . . . . . . . . . . . . . . . (See General-UL/NSF I&S Manual)
The following High erformance Medium Temperature, Multi-Shelf Dairy, Deli, roduce and
Juice Merchandiser models are covered in this manual:
MODEL DESCRIPTION
N6DHPL 4’, 6’, 8’ 12’ HIGH PERF. MED. TEMP. MERCHANDISER WITH
18” FRONT
N6DHPM 6’, 8’ 12’ HIGH PERF. MED. TEMP. MERCHANDISER WITH 22” FRONT
N6DHPH 6’, 8’ 12’ HIGH PERF. MED. TEMP. MERCHANDISER WITH 26” FRONT
N6DHPLR 8’ 12’ HIGH PERF. MED. TEMP. MERCHANDISER WITH 18” FRONT
AND REAR DOORS
N6DHPMR 8’ 12’ HIGH PERF. MED. TEMP. MERCHANDISER WITH 22” FRONT
AND REAR DOORS

N6DHP(L, M, H, LR, MR) Tyler Refri eration
Page 4 September, 2005
SPECIFICATIONS
N6DHP(L, M, H, LR, MR) High Performance Med. Temp. Merchandisers

Installation & Service Manual N6DHP(L, M, H, LR, MR)
Page 5August, 2005

N6DHP(L, M, H, LR, MR) Tyler Refri eration
Page 6 August, 2005

Installation & Service Manual N6DHP(L, M, H, LR, MR)
April, 2006 Page 7
INSTALLATION PROCEDURES
Carpentry Procedures
Case Pull-Up Locations
All N6DH models have four pull-ups at each
end of the case. ull-ups A, B, C and D are
located as shown and should be installed and
tightened starting with A and finishing with D.
NOTE
If extra pull-up bolts are needed, use the
bolts from the side shipping supports.
See “General-UL/NSF I S Manual” for
line-up assembly instructions.
Joining Rear Load Cases to Coolers
(N6DHPLR and N6DHPMR only)
For U.L. and temperature performance
requirements, N6DH LR and N6DH MR
cases must be backed by a refrigerated area.
TYLER walk-in coolers are available with the
necessary special parts and instructions to
make the installation.
NOTE
Please ensure that the cooler opening is
insulated and sealed completely to the
rear of the display case.

7. To adjust the setpoint:
a. ush the Menu Button. “S ” will flash
on the LCD display.
b. ush the Menu Button one more time
and a setpoint temperature will be dis-
played.
c. ush the Up or Down Button until the
desired setpoint is displayed.
N6DH (w/shelving, = 32°F
peg bars or mixed)
N6DH (w/produce insert) = 34°F
d. ush the Menu Button.
8. To adjust the differential:
a. ush the Menu Button. “S ” will flash
on the LCD display.
b. ush the Down Button until “DIF” is
shown on the LCD display.
c. ush the Menu Button one more time
and a differential number will be dis-
played.
d. ush the Up or Down Button until the
desired differential setting is displayed.
N6DH (all applications) = 2°F
d. ush the Menu Button.
With the cooling mode selected, the
differential is ABOVE the setpoint. The relay
will energize and the LED indicator will
illuminate when the temperature reaches the
differential setting. When the temperature
drops to the setpoint, the relay and LED
indicator will de-energize and refrigeration
will stop.
The settings above are specific to TYLER
N6DH cases. Other applications will require
different setpoints and differentials.
N6DHP(L, M, H, LR, MR) Tyler Refri eration
Page 8 May, 2004
Refrigeration Procedures
Refrigeration system and superheat
instructions can be found in the “General
(UL/NSF) I S Manual”. Case electronic
temperature control information is listed
below.
Electronic Temperature Control
Whenever an N6DH uses an electronic
thermostat and solenoid valve for temperature
control, use the following instructions to
properly set-up the electronic thermostat.
Setting the Electronic Thermostat
1. Remove the four screws and cover from
the electronic thermostat.
2. Connect sensor wires to the common
(COM) and sensor (SEN) terminals of the
terminal strip located at the top left of the
printed circuit board. The sensor leads are
interchangeable.
3. Set the Heating/Cooling jumper blocks to
the “COOL” position.
4. Set the Cut-in at Setpoint/Cut-out at
Setpoint jumper blocks to the “Cut-out at
Setpoint” position.
5. Set the keypad Locked/Unlocked jumper
blocks to the “Unlocked” position.
6. Replace the electronic thermostat cover
and secure with four screws.

Installation & Service Manual N6DHP(L, M, H, LR, MR)
Page 9August, 2005
Electrical Procedures
Electrical Considerations
CAUTION
Make sure all electrical connections at
components and terminal blocks are tight.
This will prevent burning of electrical
terminals and/or premature component
failure.
NOTE
Raceway covers will be shipped loose.
See the “General-UL/NSF I S Manual” for
raceway cover installation and removal
instructions.
Case Fan Circuit
This circuit is to be supplied by an uninter-
rupted, protected 120V circuit. The case fan
circuit is not cycled.
Fluorescent Lamp Circuit
The standard case lighting system is 800MA
T-12 high output (HO) lamps. The standard
lighting is 1-row of horizontal canopy lights.
Defrost Information
See “General-UL/NSF I S Manual” for
operational descriptions for each type of
defrost control.
Defrost Control Chart
Defrost
Defrost Defrosts Duration
Type Per Day (Min)
Off Time 6 16*
(w/ shelves or produce inserts)
Off Time 6 18*
(w/ peg bars or mixed)
Off Time 6 16*
(rear load)
*16 or 18 minutes is for EPR only. Defrost
duration increases by 4 minutes when
controller methods do not include an
EPR valve.
WIRING DIAGRAMS
ELECTRICIAN NOTE - OVERCURRENT
PROTECTION
120V circuits should be protected by 15 or 20 Amp
devices per the requirements noted on the cabinet
nameplate or the National Electrical Code, Canadian
Electrical Code - Part 1, Section 28. 208V defrost
circuits employ No. 12 AWG field wire leads for field
connections. On remote cases intended for end to
end line-ups, bonding for ground may rely upon the
pull-up bolts.
The following wiring diagrams on pages 10,
11 and 12 will cover the N6DH and N6DH R
case circuits. The defrost and lighting circuits
are covered in the case circuit diagrams.

Page 10 January, 2006
N6DHPL Dom. Exp. (50Hz) Case Circuits (4’ Cases)