Description

530.70-N1.11Y

The installation of this kit (2RT04701A) replaces the W7400 module and will obsolete the T7400 thermostat. A new ther- mostat will be required to operate the unit.

This kit contains all necessary electrical components, sheet- metal parts, and wires to replace the W7400 module and the T7400 thermostats used in all Constant Volume 30-40 Ton Millennium Style A units. The kit contains the wiring needed for all options including CV W/ Economizer, CV W/O Econo- mizer, Optional Gas Heat, and Optional Electric Heat. Fig- ures 1 and 2 illustrate the location of the Millennium controls and the location of the W7400 in the control section. The

new low-voltage electric box will be as shown in Figure 4.

TABLE 1: PARTS SUPPLIED FOR CONTROL CHANGE

QTY	PART NO.	DESCRIPTION

1	073-21599-000	Backplate Bracket

1	025-16100-000	Terminal Block, 10 Pole

1	025-32699-000	Transformer, 24V to 24V

5	024-24116-000	Isolation Relay

4	021-15512-000	#10 Sheet metal Screws

1	035-16634-000	CV w/ECON
1	035-16634-000	Wiring Diagram
		Wiring Diagram

1	035-16636-000	CV w/ECON
1	035-16636-000	Connection Diagram
		Connection Diagram

1	035-16635-000	CV W/O ECON Wiring Diagram

1	035-16637-000	CV W/O ECON Connection
1	035-16637-000	Diagram
		Diagram

1	035-16165-000	CV Electric Heat Wiring
1	035-16165-000	Diagram
		Diagram

1	035-16148-000	CV Gas Heat Wiring Diagram

1	373-22695-000	CV With Economizer Wire
1	373-22695-000	Pkg.1
		Pkg.1

1	373-22694-000	CV W/O Economizer Wire
1	373-22694-000	Pkg.2
		Pkg.2

1	373-22696-000	CV With Heat Wire3

1.See Table 4 for complete listing of wires in the CV with Economizer Package.

2.See Table 2 for complete listing of wires in the CV with- out Economizer Package

3.See Tables 3 and 5 for complete listing of wires in the CV unit with heat package

TABLE 2: PARTS SUPPLIED FOR CV UNITS W/O ECONOMIZER1

QTY	PART NO.	DESCRIPTION

		201/R

1	373-18641-653	816/R

		252/R

		257/Y

		817/Y
1	373-18641-654
1	373-18641-654	818/Y
		818/Y

		819/Y

		842/BR

		814/BR

		813/BR
1	373-18641-659
1	373-18641-659	812/BR
		812/BR

		834/BR

		835/BR

1	AB008RED7171230	230/R

1	AB024YEL5471240	240/Y

1	AB024ORN7171244	244/O

1	AB027GRA7171248	248/GY

1	AB022GRA7171800	800/GY

1	AB007YEL7171801	801/Y

1	AB007ORN7171802	802/O

1	AB009PRP7171803	803/PR

1	AB012GRA7171821	821/GY

1	AB018BRN7171836	836/BR

1	AB027PRP7171839	839/PR

1.See Table 3 for units with optional heat.

2	Unitary Products Group

Millennium Enterprises STYLE B, Y13, Y14, STYLE C Description, Parts Supplied For Control Change

Models: STYLE C Y13 STYLE A STYLE B Y14

DESCRIPTION

TABLE 1: PARTS SUPPLIED FOR CONTROL CHANGE

PART NO.

DESCRIPTION