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