Cv units with economizer – Millennium Enterprises MILLENNIUM Y13 User Manual
Page 10
530.70-N1.11Y
10
Unitary Products Group
CV UNITS WITH ECONOMIZER
The new thermostat requires a thermostat cable with a mini-
mum of 10 conductors that run from the sub-base to the con-
trol box. The new wire will be connected as shown in Figure
3.
1.
Locate the W7400 control module in the electric/control
panel (See Figure 1).
2.
Remove the following wires from the W7400 control
module:
•
254/GY
•
250/PR
•
202/R
•
294/R
•
230/R
•
240/Y
•
244/O
•
246/PR
•
248/GY
•
201/R
•
252/Y
•
257/Y
•
208/BR
•
307/O
•
318/O
3.
Disconnect wire 204/BR from the TR terminals on the
W7400 control module.
NOTE: This wire will be used with the new control.
4.
Disconnect thermostat wire from terminals 1-4 on the
W7400 control module.
TABLE 4: PARTS SUPPLIED FOR CV UNITS W/
ECONOMIZER
QTY
PART NO.
DESCRIPTION
1
373-18641-653
201/R
816/R
252/R
1
373-18641-654
257/Y
817/Y
818/Y
819/Y
1
373-18641-655
307/O
318/O
828/O
1
373-18641-658
842/BR
814/BR
813/BR
812/BR
811/BR
843/BR
841/BR
1
AB008RED7171230
230/R
1
AB024ORN7171244
244/O
1
AB027GRA7171248
248/GY
1
AB020RED5471250
250/R
1
AB022GRA7171800
800/GY
1
AB007YEL7171801
801/Y
1
AB007ORN7171802
802/O
1
AB009PRP7171803
803/PR
1
AB016PRP7171809
809/PR
1
AB012GRA7171821
821/GY
1
AB018BRN7171836
836/BR
1
AB126RED711L837
837/R
1
AB027PRP7171839
839/PR
TABLE 5: PARTS SUPPLIED FOR CV UNITS W/
OPTIONAL HEAT
QTY
PART NO.
DESCRIPTION
1
373-18689-610
820/Y
823/Y
1
373-18689-611
822/BR
826/BR
1
AB144GRA7171844
844/GY
1
AB144WHT7171845
845/W
2
024-24116-000
Isolation Relay
OPEN ALL DISCONNECTS BEFORE SERCIV-
ING THIS UNIT.