Tyler Refrigeration Installation Procedures, Wiring Diagrams, N5D, N5DH, N5DL, N5DSC

N5D, N5DH, N5DL, N5DSC Tyler Refrigeration

INSTALLATION PROCEDURES

Carpentry Procedures

Case Pull-Up Locations

The N5D, N5DH, N5DL and N5DSC models have four pull-ups at each end of the case. Pull-ups A, B, C and D are located as shown and should be install-ed and tightened starting with A and finishing with D.

See “General-UL/NSF I&S Manual” for line- up assembly instructions.

Electrical Procedures

Electrical Considerations

CAUTION

Make sure all electrical connections at com- ponents and terminal blocks are tight.

NOTE

Since the lower front cladding is shipped loose, the wiring has immediate access.

Case Fan Circuit

This circuit is to be supplied by an uninter- rupted, protected 120V circuit. The case fan circuit is not cycled during defrost on any of these models.

Fluorescent Lamp Circuit

N5D/N5DH/N5DL/N5DSC case lighting is supplied by 800MA HO horizontal lights. It is controlled by a light switch in each case. The standard lighting is 1-row of high output 800MA canopy lights. N5D/N5DH/N5DL/N5DSC also offers up to 4 rows of T-8 shelf lights with remote electronic ballasts.

Self-Contained Circuit

LNDSC cases are self-contained units. Information pertaining to self-contained units should be obtained directly from TYLER Refrigeration.

Defrost Information

See “General-UL/NSF I&S Manual” for operational descriptions for Off Time defrost control.

Defrost Control Chart

		Defrost
Defrost	Defrosts	Duration	Term.
Type	Per Day	(Min)	Temp.
Off Time	4	24	-----

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 7 thru 12 will cover the N5D, N5DH, N5DL and N5DSC case circuits and the lighting circuits.

Page 6 January, 2001